First Commit

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README.md
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# performance-tests # Performance Tests — CPU vs WebAssembly vs Node.js vs OpenCL vs Browser Pthread
This project benchmarks performance of the same arithmetic workload across multiple execution models:
```
c[i] = a[i] + b[i]
```
Array size: ~15 million `float` elements.
Compared implementations:
• Native C — single core
• Native C — Pthreads
• Native C — OpenMP
• Node.js — JavaScript
• Node.js — WebAssembly (single core)
• Node.js — WebAssembly + Pthreads (multi-core)
• Browser — WebAssembly + Pthreads (multi-core)
• OpenCL — CPU and GPU
---
## Build & Run (All Tests)
Run every benchmark automatically (native, Node.js, WebAssembly, OpenCL):
```
bash compile.sh
```
The script:
1. Compiles all binaries (.c → ./binaries/*)
2. Builds WebAssembly versions using Emscripten
3. Executes each performance test in sequence
4. Prints timing + result samples
Requirements:
• gcc / clang
• Node.js
• Emscripten (for WASM builds)
• OpenCL dev libs (optional, for OpenCL tests)
---
## Run Browser WebAssembly + Pthreads Version
```
cd wasm_pthread_fast/web
node server.js
```
Then open:
```
http://localhost:1234
```
This runs the multithreaded WASM benchmark inside the browser with correct SharedArrayBuffer support.
---
## Example Results
All implementations validate correct output values (`c[0] = 0`, `c[1] = 3`, …)
Times in milliseconds:
| Method | Platform | Cores | Total / Calc Time (ms) | Status |
| ------------------------- | -------- | ----- | ---------------------- | ---------------- |
| Native C | CPU | 1 | 210.63 | OK |
| Node.js | CPU | 1 | 215.15 | OK |
| Wasm Node.js | CPU | 1 | 219.81 | OK |
| OpenMP | CPU | multi | 140.58 | OK |
| C Pthreads | CPU | multi | 21.98 (calc) | **Fastest CPU** |
| Wasm + Pthreads (Node.js) | CPU | multi | 23.08 (calc) | **Very fast** |
| Wasm + Pthreads (Browser) | CPU | multi | 35.21 (calc) | **Fast** |
| OpenCL CPU only | CPU | many? | 162.36 total | OK |
| OpenCL GPU | GPU | many | Crash | Driver dependent |
---
## Folder Overview
| Path | Description |
| --------------------- | ------------------------------ |
| add_single_core.c | Single-threaded C baseline |
| pthread_add.c | Multi-core with Pthreads |
| openmp_add.c | Multi-core with OpenMP |
| opencl_add_cpu.c | CPU via OpenCL runtime |
| opencl_add_gpu.c | GPU compute attempt |
| wasm_add.c | WebAssembly (single-core) |
| wasm_add_pthread.c | WebAssembly (multi-core) |
| wasm_node.js | Node test for single-core WASM |
| wasm_pthread_fast/ | Multi-threaded WASM version |
| wasm_pthread_fast/web | Browser runner + local server |
| compile.sh | Complete build + test pipeline |
---
## Findings
• Multi-core CPU execution is far superior to single-threaded versions
• Node.js + WebAssembly threads approach native CPU performance
• Browser WASM threading provides strong performance with minimal overhead
• GPU workloads are not benefited due to memory transfer bottlenecks
GPU will win when computation-per-element is higher
---
## Future Expansion
• Higher compute complexity test kernels
• Multi-run average statistics
• Visual charts comparing performance gaps
• GPU-friendly workloads showing real acceleration crossover

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const ARRAY_SIZE = 15000576; // 100 million items
function getTime() {
return performance.now() / 1000; // returns time in seconds
}
function main() {
const a = new Float32Array(ARRAY_SIZE);
const b = new Float32Array(ARRAY_SIZE);
const c = new Float32Array(ARRAY_SIZE);
// Initialize arrays
const start = getTime();
for (let i = 0; i < ARRAY_SIZE; i++) {
a[i] = i;
b[i] = i * 2;
}
const initTime = getTime() - start;
// Perform the calculation
const startCalc = getTime();
for (let i = 0; i < ARRAY_SIZE; i++) {
c[i] = a[i] + b[i];
}
const calcTime = getTime() - startCalc;
// Print timing results
console.log(`Array initialization time: ${(initTime * 1000).toFixed(3)} ms`);
console.log(`Calculation time: ${(calcTime * 1000).toFixed(3)} ms`);
console.log(`Total time: ${((initTime + calcTime) * 1000).toFixed(3)} ms`);
// Print a sample of the result
for (let i = 0; i < 10; i++) {
console.log(`c[${i}] = ${c[i]}`);
}
}
main();

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'use strict';
const { Worker, isMainThread, parentPort, workerData } = require('worker_threads');
const ARRAY_SIZE = 15000576;
const NUM_THREADS = 8; // Reduced from 12 to minimize overhead; adjust to your core count (e.g., 4-16)
function getTime() {
const ns = process.hrtime.bigint();
return Number(ns) / 1e9; // Returns seconds
}
if (isMainThread) {
(async () => {
let start, end;
// Time memory allocation
start = getTime();
const sabA = new SharedArrayBuffer(ARRAY_SIZE * 4);
const sabB = new SharedArrayBuffer(ARRAY_SIZE * 4);
const sabC = new SharedArrayBuffer(ARRAY_SIZE * 4);
const a = new Float32Array(sabA);
const b = new Float32Array(sabB);
const c = new Float32Array(sabC);
end = getTime();
const allocTime = end - start;
// Time array initialization (single-threaded, like original C)
start = getTime();
for (let i = 0; i < ARRAY_SIZE; i++) {
a[i] = i;
b[i] = i * 2;
}
end = getTime();
const initTime = end - start;
// Create workers for parallel computation
const chunkSize = Math.floor(ARRAY_SIZE / NUM_THREADS);
const workerPromises = [];
// Time worker creation and execution (only for computation)
start = getTime();
for (let t = 0; t < NUM_THREADS; t++) {
const workerStart = t * chunkSize;
const workerEnd = (t === NUM_THREADS - 1) ? ARRAY_SIZE : (t + 1) * chunkSize;
const worker = new Worker(__filename, {
workerData: {
start: workerStart,
end: workerEnd,
sabA,
sabB,
sabC
}
});
workerPromises.push(new Promise((resolve, reject) => {
worker.on('exit', resolve);
worker.on('error', reject);
}));
}
// Wait for workers to finish
await Promise.all(workerPromises);
end = getTime();
const threadTime = end - start;
// Print timing results (matching original structure)
console.log(`Memory allocation time: ${(allocTime * 1000).toFixed(6)} ms`);
console.log(`Array initialization time: ${(initTime * 1000).toFixed(6)} ms`);
console.log(`Thread execution time: ${(threadTime * 1000).toFixed(6)} ms`);
console.log(`Total time: ${((allocTime + initTime + threadTime) * 1000).toFixed(6)} ms`);
// Print a sample of the result
for (let i = 0; i < 10; i++) {
console.log(`c[${i}] = ${c[i]}`);
}
// No explicit cleanup (garbage collected)
})();
} else {
const { start, end, sabA, sabB, sabC } = workerData;
const a = new Float32Array(sabA);
const b = new Float32Array(sabB);
const c = new Float32Array(sabC);
// Parallel computation only
for (let i = start; i < end; i++) {
c[i] = a[i] + b[i];
}
// Tip: For extra speed, you could combine init into this loop (if moved from main thread),
// but that would parallelize init too: a[i] = i; b[i] = i * 2; c[i] = a[i] + b[i];
// Worker exits automatically
}

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#include <stdio.h>
#include <stdlib.h>
#include <sys/time.h>
#define ARRAY_SIZE 15000576 // 100 million items
double get_time() {
struct timeval tv;
gettimeofday(&tv, NULL);
return tv.tv_sec + tv.tv_usec * 1e-6;
}
int main() {
float *a = (float*)malloc(sizeof(float) * ARRAY_SIZE);
float *b = (float*)malloc(sizeof(float) * ARRAY_SIZE);
float *c = (float*)malloc(sizeof(float) * ARRAY_SIZE);
// Initialize arrays
double start = get_time();
for (int i = 0; i < ARRAY_SIZE; i++) {
a[i] = i;
b[i] = i * 2;
}
double init_time = get_time() - start;
// Perform the calculation
start = get_time();
for (int i = 0; i < ARRAY_SIZE; i++) {
c[i] = a[i] + b[i];
}
double calc_time = get_time() - start;
// Print timing results
printf("Array initialization time: %.3f ms\n", init_time * 1000);
printf("Calculation time: %.3f ms\n", calc_time * 1000);
printf("Total time: %.3f ms\n", (init_time + calc_time) * 1000);
// Print a sample of the result
for (int i = 0; i < 10; i++) {
printf("c[%d] = %f\n", i, c[i]);
}
// Clean up
free(a);
free(b);
free(c);
return 0;
}

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emcc ./wasm_add.c \
-Os \
-s STANDALONE_WASM=1 \
-s EXPORTED_FUNCTIONS='["_alloc", "_dealloc", "_alloc_float_array", "_dealloc_float_array", "_init_arrays", "_calculate"]' \
--no-entry \
-s INITIAL_MEMORY=180224000 \
-s ALLOW_MEMORY_GROWTH=1 \
-o ./binaries/wasm_add.wasm
emcc ./wasm_add_pthread.c \
-Os \
-s STANDALONE_WASM=1 \
-s EXPORTED_FUNCTIONS='["_alloc", "_dealloc", "_alloc_float_array", "_dealloc_float_array", "_init_arrays_range", "_calculate_range"]' \
--no-entry \
-s INITIAL_MEMORY=180224000 \
-s ALLOW_MEMORY_GROWTH=1 \
-o ./binaries/wasm_add_pthread.wasm
emcc wasm_pthread_fast/wasm_add_pthread.c \
-O3 \
-s USE_PTHREADS=1 \
-s PTHREAD_POOL_SIZE=8 \
-s ALLOW_MEMORY_GROWTH=0 \
-s INITIAL_MEMORY=256MB \
-s EXPORTED_FUNCTIONS='["_alloc_float_array","_dealloc_float_array","_init_arrays","_calculate_range"]' \
-s EXPORTED_RUNTIME_METHODS='["ccall","cwrap","wasmMemory"]' \
--no-entry \
-o ./wasm_pthread_fast/binaries/wasm_add_pthread.js \
-s EXPORT_ES6=1 \
-s MODULARIZE=1 \
-s ENVIRONMENT=node
gcc opencl_add_cpu.c -o ./binaries/opencl_add_cpu -lOpenCL
gcc add_single_core.c -o ./binaries/add_single_core
gcc pthread_add.c -o ./binaries/pthread_add
gcc openmp_add.c -O3 -o ./binaries/openmp_add -O3 -fopenmp
gcc opencl_add_gpu.c -o ./binaries/opencl_add_gpu -lOpenCL
read -p "Press enter to continue"
echo ""
echo "OpenCl Cpu only"
echo ""
./binaries/opencl_add_cpu
read -p "Press enter to continue"
echo ""
echo "c native Single Core"
echo ""
./binaries/add_single_core
read -p "Press enter to continue"
echo ""
echo "c Wasm Nodejs Single Core"
echo ""
node wasm_node.js
read -p "Press enter to continue"
echo ""
echo "Nodejs"
echo ""
read -p "Press enter to continue"
node add_javascript.js
read -p "Press enter to continue"
echo ""
echo "Pthread Core"
echo ""
./binaries/pthread_add
echo ""
echo "Nodejs Wasm Pthread Fast"
echo ""
node ./wasm_pthread_fast/main.js
read -p "Press enter to continue"
echo ""
echo "OpenMp"
echo ""
./binaries/openmp_add
read -p "Press enter to continue"
echo ""
echo "OpenCl"
echo ""
./binaries/opencl_add_gpu

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#include <stdio.h>
#include <CL/cl.h>
int main() {
cl_uint platformCount;
clGetPlatformIDs(0, NULL, &platformCount);
cl_platform_id *platforms = (cl_platform_id *)malloc(platformCount * sizeof(cl_platform_id));
clGetPlatformIDs(platformCount, platforms, NULL);
for (cl_uint i = 0; i < platformCount; i++) {
char platformName[128];
clGetPlatformInfo(platforms[i], CL_PLATFORM_NAME, 128, platformName, NULL);
printf("Platform %d: %s\n", i, platformName);
cl_uint deviceCount;
clGetDeviceIDs(platforms[i], CL_DEVICE_TYPE_ALL, 0, NULL, &deviceCount);
cl_device_id *devices = (cl_device_id *)malloc(deviceCount * sizeof(cl_device_id));
clGetDeviceIDs(platforms[i], CL_DEVICE_TYPE_ALL, deviceCount, devices, NULL);
for (cl_uint j = 0; j < deviceCount; j++) {
char deviceName[128];
clGetDeviceInfo(devices[j], CL_DEVICE_NAME, 128, deviceName, NULL);
printf(" Device %d: %s\n", j, deviceName);
}
free(devices);
}
free(platforms);
return 0;
}

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#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <CL/cl.h>
#include <sys/time.h>
#define ARRAY_SIZE 15000576 // 100 million items
#define LOCAL_SIZE 256 // Tunable work-group size
const char *kernelSource =
"__kernel void add(__global const float *a, __global const float *b, __global float *c) { "
" int i = get_global_id(0); "
" c[i] = a[i] + b[i]; "
"} ";
double get_time() {
struct timeval tv;
gettimeofday(&tv, NULL);
return tv.tv_sec + tv.tv_usec * 1e-6;
}
int main() {
float *a = (float*)malloc(sizeof(float) * ARRAY_SIZE);
float *b = (float*)malloc(sizeof(float) * ARRAY_SIZE);
float *c = (float*)malloc(sizeof(float) * ARRAY_SIZE);
// Initialize arrays
for (int i = 0; i < ARRAY_SIZE; i++) {
a[i] = i;
b[i] = i * 2;
}
// Get all platforms
cl_uint platformCount;
clGetPlatformIDs(0, NULL, &platformCount);
cl_platform_id *platforms = (cl_platform_id *)malloc(platformCount * sizeof(cl_platform_id));
clGetPlatformIDs(platformCount, platforms, NULL);
// Find the POCL platform
cl_platform_id poclPlatform = NULL;
for (cl_uint i = 0; i < platformCount; i++) {
char platformName[128];
clGetPlatformInfo(platforms[i], CL_PLATFORM_NAME, 128, platformName, NULL);
if (strstr(platformName, "Portable Computing Language") != NULL) {
poclPlatform = platforms[i];
break;
}
}
if (poclPlatform == NULL) {
printf("POCL platform not found!\n");
return 1;
}
// Get the CPU device from the POCL platform
cl_device_id cpuDevice = NULL;
cl_uint deviceCount;
cl_int ret = clGetDeviceIDs(poclPlatform, CL_DEVICE_TYPE_CPU, 1, &cpuDevice, &deviceCount);
if (ret != CL_SUCCESS || deviceCount == 0) {
printf("No CPU device found on POCL platform!\n");
return 1;
}
// Create an OpenCL context
cl_context context = clCreateContext(NULL, 1, &cpuDevice, NULL, NULL, &ret);
if (ret != CL_SUCCESS) {
printf("Error creating context: %d\n", ret);
return 1;
}
// Create a command queue
cl_command_queue command_queue = clCreateCommandQueueWithProperties(context, cpuDevice, NULL, &ret);
if (ret != CL_SUCCESS) {
printf("Error creating command queue: %d\n", ret);
return 1;
}
// Create memory buffers on the device
cl_mem a_mem_obj = clCreateBuffer(context, CL_MEM_READ_ONLY, ARRAY_SIZE * sizeof(float), NULL, &ret);
cl_mem b_mem_obj = clCreateBuffer(context, CL_MEM_READ_ONLY, ARRAY_SIZE * sizeof(float), NULL, &ret);
cl_mem c_mem_obj = clCreateBuffer(context, CL_MEM_WRITE_ONLY, ARRAY_SIZE * sizeof(float), NULL, &ret);
if (ret != CL_SUCCESS) {
printf("Error creating memory buffers: %d\n", ret);
return 1;
}
// Time data transfer to device
double start = get_time();
ret = clEnqueueWriteBuffer(command_queue, a_mem_obj, CL_TRUE, 0, ARRAY_SIZE * sizeof(float), a, 0, NULL, NULL);
ret |= clEnqueueWriteBuffer(command_queue, b_mem_obj, CL_TRUE, 0, ARRAY_SIZE * sizeof(float), b, 0, NULL, NULL);
double transfer_to_device_time = get_time() - start;
if (ret != CL_SUCCESS) {
printf("Error writing to memory buffers: %d\n", ret);
return 1;
}
// Create a program from the kernel source
cl_program program = clCreateProgramWithSource(context, 1, (const char **)&kernelSource, NULL, &ret);
if (ret != CL_SUCCESS) {
printf("Error creating program: %d\n", ret);
return 1;
}
// Build the program
ret = clBuildProgram(program, 1, &cpuDevice, NULL, NULL, NULL);
if (ret != CL_SUCCESS) {
size_t log_size;
clGetProgramBuildInfo(program, cpuDevice, CL_PROGRAM_BUILD_LOG, 0, NULL, &log_size);
char *log = (char *)malloc(log_size);
clGetProgramBuildInfo(program, cpuDevice, CL_PROGRAM_BUILD_LOG, log_size, log, NULL);
printf("Kernel compilation error:\n%s\n", log);
free(log);
return 1;
}
// Create the OpenCL kernel
cl_kernel kernel = clCreateKernel(program, "add", &ret);
if (ret != CL_SUCCESS) {
printf("Error creating kernel: %d\n", ret);
return 1;
}
// Set the arguments of the kernel
ret = clSetKernelArg(kernel, 0, sizeof(cl_mem), (void *)&a_mem_obj);
ret |= clSetKernelArg(kernel, 1, sizeof(cl_mem), (void *)&b_mem_obj);
ret |= clSetKernelArg(kernel, 2, sizeof(cl_mem), (void *)&c_mem_obj);
if (ret != CL_SUCCESS) {
printf("Error setting kernel arguments: %d\n", ret);
return 1;
}
// Time kernel execution
start = get_time();
size_t global_item_size = ARRAY_SIZE;
size_t local_item_size = LOCAL_SIZE;
ret = clEnqueueNDRangeKernel(command_queue, kernel, 1, NULL, &global_item_size, &local_item_size, 0, NULL, NULL);
clFinish(command_queue);
double kernel_time = get_time() - start;
if (ret != CL_SUCCESS) {
printf("Error executing kernel: %d\n", ret);
return 1;
}
// Time data transfer back to host
start = get_time();
ret = clEnqueueReadBuffer(command_queue, c_mem_obj, CL_TRUE, 0, ARRAY_SIZE * sizeof(float), c, 0, NULL, NULL);
double transfer_to_host_time = get_time() - start;
if (ret != CL_SUCCESS) {
printf("Error reading from memory buffer: %d\n", ret);
return 1;
}
// Print timing results
printf("Data transfer to device: %.3f ms\n", transfer_to_device_time * 1000);
printf("Kernel execution time: %.3f ms\n", kernel_time * 1000);
printf("Data transfer to host: %.3f ms\n", transfer_to_host_time * 1000);
printf("Total time: %.3f ms\n", (transfer_to_device_time + kernel_time + transfer_to_host_time) * 1000);
// Print a sample of the result
for (int i = 0; i < 10; i++) {
printf("c[%d] = %f\n", i, c[i]);
}
// Clean up
clFlush(command_queue);
clFinish(command_queue);
clReleaseKernel(kernel);
clReleaseProgram(program);
clReleaseMemObject(a_mem_obj);
clReleaseMemObject(b_mem_obj);
clReleaseMemObject(c_mem_obj);
clReleaseCommandQueue(command_queue);
clReleaseContext(context);
free(a);
free(b);
free(c);
free(platforms);
return 0;
}

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#include <stdio.h>
#include <stdlib.h>
#include <CL/cl.h>
#include <sys/time.h>
#define ARRAY_SIZE 15000576 // Tiny array
#define LOCAL_SIZE 256 // Small work-group size
const char *kernelSource =
"__kernel void add(__global const float *a, __global const float *b, __global float *c) { "
" int i = get_global_id(0); "
" if (i < 15000576) { "
" c[i] = a[i] + b[i]; "
"} "
"} ";
double get_time() {
struct timeval tv;
gettimeofday(&tv, NULL);
return tv.tv_sec + tv.tv_usec * 1e-6;
}
int main() {
float *a = (float*)malloc(sizeof(float) * ARRAY_SIZE);
float *b = (float*)malloc(sizeof(float) * ARRAY_SIZE);
float *c = (float*)malloc(sizeof(float) * ARRAY_SIZE);
// Initialize arrays
for (int i = 0; i < ARRAY_SIZE; i++) {
a[i] = i;
b[i] = i * 2;
}
// Get GPU platform and device
cl_platform_id platform;
cl_device_id gpuDevice;
cl_uint platformCount, deviceCount;
clGetPlatformIDs(1, &platform, &platformCount);
clGetDeviceIDs(platform, CL_DEVICE_TYPE_GPU, 1, &gpuDevice, &deviceCount);
// Print GPU device info
char deviceName[128];
clGetDeviceInfo(gpuDevice, CL_DEVICE_NAME, 128, deviceName, NULL);
printf("Using GPU device: %s\n", deviceName);
// Create context and command queue
cl_context context = clCreateContext(NULL, 1, &gpuDevice, NULL, NULL, NULL);
cl_command_queue command_queue = clCreateCommandQueue(context, gpuDevice, 0, NULL);
// Create buffers
double start = get_time();
cl_mem a_mem = clCreateBuffer(context, CL_MEM_READ_ONLY | CL_MEM_COPY_HOST_PTR, ARRAY_SIZE * sizeof(float), (void *)a, NULL);
cl_mem b_mem = clCreateBuffer(context, CL_MEM_READ_ONLY | CL_MEM_COPY_HOST_PTR, ARRAY_SIZE * sizeof(float), (void *)b, NULL);
cl_mem c_mem = clCreateBuffer(context, CL_MEM_WRITE_ONLY, ARRAY_SIZE * sizeof(float), NULL, NULL);
double buffer_create_time = get_time() - start;
// Time data transfer to device (not needed with CL_MEM_COPY_HOST_PTR)
double transfer_to_device_time = 0.0;
// Create and build program
start = get_time();
cl_program program = clCreateProgramWithSource(context, 1, &kernelSource, NULL, NULL);
cl_int ret = clBuildProgram(program, 1, &gpuDevice, NULL, NULL, NULL);
if (ret != CL_SUCCESS) {
size_t log_size;
clGetProgramBuildInfo(program, gpuDevice, CL_PROGRAM_BUILD_LOG, 0, NULL, &log_size);
char *log = (char *)malloc(log_size);
clGetProgramBuildInfo(program, gpuDevice, CL_PROGRAM_BUILD_LOG, log_size, log, NULL);
printf("Kernel compilation error:\n%s\n", log);
free(log);
return 1;
}
double program_build_time = get_time() - start;
// Create kernel
start = get_time();
cl_kernel kernel = clCreateKernel(program, "add", NULL);
if (!kernel) {
printf("Error creating kernel\n");
return 1;
}
double kernel_create_time = get_time() - start;
// Set kernel arguments
start = get_time();
ret = clSetKernelArg(kernel, 0, sizeof(cl_mem), (void *)&a_mem);
ret |= clSetKernelArg(kernel, 1, sizeof(cl_mem), (void *)&b_mem);
ret |= clSetKernelArg(kernel, 2, sizeof(cl_mem), (void *)&c_mem);
if (ret != CL_SUCCESS) {
printf("Error setting kernel arguments: %d\n", ret);
return 1;
}
double kernel_arg_time = get_time() - start;
// Execute kernel
start = get_time();
size_t global_size = ARRAY_SIZE;
size_t local_size = LOCAL_SIZE;
ret = clEnqueueNDRangeKernel(command_queue, kernel, 1, NULL, &global_size, &local_size, 0, NULL, NULL);
if (ret != CL_SUCCESS) {
printf("Error executing kernel: %d\n", ret);
return 1;
}
clFinish(command_queue);
double kernel_exec_time = get_time() - start;
// Read result back
start = get_time();
ret = clEnqueueReadBuffer(command_queue, c_mem, CL_TRUE, 0, ARRAY_SIZE * sizeof(float), c, 0, NULL, NULL);
if (ret != CL_SUCCESS) {
printf("Error reading from memory buffer: %d\n", ret);
return 1;
}
double transfer_to_host_time = get_time() - start;
// Print timing results
printf("Buffer creation time: %.6f ms\n", buffer_create_time * 1000);
printf("Program build time: %.6f ms\n", program_build_time * 1000);
printf("Kernel creation time: %.6f ms\n", kernel_create_time * 1000);
printf("Kernel argument setup time: %.6f ms\n", kernel_arg_time * 1000);
printf("Kernel execution time: %.6f ms\n", kernel_exec_time * 1000);
printf("Data transfer to host: %.6f ms\n", transfer_to_host_time * 1000);
printf("Total time: %.6f ms\n",
(buffer_create_time + program_build_time + kernel_create_time +
kernel_arg_time + kernel_exec_time + transfer_to_host_time) * 1000);
// Print the result
for (int i = 0; i < 8; i++) {
printf("c[%d] = %f\n", i, c[i]);
}
// Cleanup
clReleaseMemObject(a_mem);
clReleaseMemObject(b_mem);
clReleaseMemObject(c_mem);
clReleaseKernel(kernel);
clReleaseProgram(program);
clReleaseCommandQueue(command_queue);
clReleaseContext(context);
return 0;
}

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#include <stdio.h>
#include <stdlib.h>
#include <CL/cl.h>
#define ARRAY_SIZE 256
// Helper macro for robust error checking
#define CL_CHECK(err) do { \
if (err != CL_SUCCESS) { \
printf("OpenCL error at %s:%d code %d\n", __FILE__, __LINE__, err); \
exit(1); \
} \
} while(0)
const char *kernelSource =
"__kernel void add(__global const float *a, __global const float *b, __global float *c) { "
" int i = get_global_id(0); "
" c[i] = a[i] + b[i]; "
"} ";
int main() {
// ... (rest of the code is the same, but with added prints)
printf("Initializing host arrays...\n"); fflush(stdout);
float *a = (float*)malloc(sizeof(float) * ARRAY_SIZE);
float *b = (float*)malloc(sizeof(float) * ARRAY_SIZE);
float *c = (float*)malloc(sizeof(float) * ARRAY_SIZE);
for (int i = 0; i < ARRAY_SIZE; i++) {
a[i] = (float)i;
b[i] = (float)i * 2.0f;
}
cl_int ret;
printf("Getting platform...\n"); fflush(stdout);
cl_platform_id platform;
CL_CHECK(clGetPlatformIDs(1, &platform, NULL));
printf("Getting GPU device...\n"); fflush(stdout);
cl_device_id gpuDevice;
CL_CHECK(clGetDeviceIDs(platform, CL_DEVICE_TYPE_CPU, 1, &gpuDevice, NULL));
char deviceName[128];
CL_CHECK(clGetDeviceInfo(gpuDevice, CL_DEVICE_NAME, 128, deviceName, NULL));
printf("Using GPU device: %s\n", deviceName); fflush(stdout);
printf("Creating context...\n"); fflush(stdout);
cl_context context = clCreateContext(NULL, 1, &gpuDevice, NULL, NULL, &ret);
CL_CHECK(ret);
printf("Creating command queue...\n"); fflush(stdout);
cl_command_queue command_queue = clCreateCommandQueueWithProperties(context, gpuDevice, 0, &ret);
CL_CHECK(ret);
printf("Creating buffers...\n"); fflush(stdout);
cl_mem a_mem = clCreateBuffer(context, CL_MEM_READ_ONLY | CL_MEM_COPY_HOST_PTR, ARRAY_SIZE * sizeof(float), a, &ret); CL_CHECK(ret);
cl_mem b_mem = clCreateBuffer(context, CL_MEM_READ_ONLY | CL_MEM_COPY_HOST_PTR, ARRAY_SIZE * sizeof(float), b, &ret); CL_CHECK(ret);
cl_mem c_mem = clCreateBuffer(context, CL_MEM_WRITE_ONLY, ARRAY_SIZE * sizeof(float), NULL, &ret); CL_CHECK(ret);
printf("Creating and building program...\n"); fflush(stdout);
cl_program program = clCreateProgramWithSource(context, 1, &kernelSource, NULL, &ret); CL_CHECK(ret);
ret = clBuildProgram(program, 1, &gpuDevice, NULL, NULL, NULL);
if (ret != CL_SUCCESS) {
// ... (error handling for build)
exit(1);
}
printf("Creating kernel...\n"); fflush(stdout);
cl_kernel kernel = clCreateKernel(program, "add", &ret); CL_CHECK(ret);
printf("Setting kernel arguments...\n"); fflush(stdout);
CL_CHECK(clSetKernelArg(kernel, 0, sizeof(cl_mem), (void *)&a_mem));
CL_CHECK(clSetKernelArg(kernel, 1, sizeof(cl_mem), (void *)&b_mem));
CL_CHECK(clSetKernelArg(kernel, 2, sizeof(cl_mem), (void *)&c_mem));
size_t global_size = ARRAY_SIZE;
printf("Enqueuing kernel for execution...\n"); fflush(stdout);
CL_CHECK(clEnqueueNDRangeKernel(command_queue, kernel, 1, NULL, &global_size, NULL, 0, NULL, NULL));
printf("Waiting for commands to finish...\n"); fflush(stdout);
CL_CHECK(clFinish(command_queue));
printf("Reading result buffer...\n"); fflush(stdout);
CL_CHECK(clEnqueueReadBuffer(command_queue, c_mem, CL_TRUE, 0, ARRAY_SIZE * sizeof(float), c, 0, NULL, NULL));
printf("Execution finished. Verifying results...\n"); fflush(stdout);
// ... (verification and cleanup)
// Cleanup
clReleaseMemObject(a_mem);
clReleaseMemObject(b_mem);
clReleaseMemObject(c_mem);
clReleaseKernel(kernel);
clReleaseProgram(program);
clReleaseCommandQueue(command_queue);
clReleaseContext(context);
free(a);
free(b);
free(c);
return 0;
}

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#include <stdio.h>
#include <stdlib.h>
#include <sys/time.h>
#include <omp.h>
#define ARRAY_SIZE 15000576 // 100 million items
double get_time() {
struct timeval tv;
gettimeofday(&tv, NULL);
return tv.tv_sec + tv.tv_usec * 1e-6;
}
int main() {
float *a = (float*)malloc(sizeof(float) * ARRAY_SIZE);
float *b = (float*)malloc(sizeof(float) * ARRAY_SIZE);
float *c = (float*)malloc(sizeof(float) * ARRAY_SIZE);
// Initialize arrays (single-threaded)
double start = get_time();
for (int i = 0; i < ARRAY_SIZE; i++) {
a[i] = i;
b[i] = i * 2;
}
double init_time = get_time() - start;
// Set number of threads
omp_set_num_threads(8);
// Perform the calculation (parallelized with OpenMP)
start = get_time();
// Try different schedules:
// #pragma omp parallel for schedule(static) // Let the compiler choose chunk size
// #pragma omp parallel for schedule(dynamic, 256) // Dynamic scheduling
#pragma omp parallel for schedule(static, 256) // Smaller chunk size
for (int i = 0; i < ARRAY_SIZE; i++) {
c[i] = a[i] + b[i];
}
double calc_time = get_time() - start;
// Print timing results
printf("Array initialization time: %.3f ms\n", init_time * 1000);
printf("Calculation time: %.3f ms\n", calc_time * 1000);
printf("Total time: %.3f ms\n", (init_time + calc_time) * 1000);
// Print a sample of the result
for (int i = 0; i < 10; i++) {
printf("c[%d] = %f\n", i, c[i]);
}
// Clean up
free(a);
free(b);
free(c);
return 0;
}

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#include <stdio.h>
#include <stdlib.h>
#include <pthread.h>
#include <sys/time.h>
#define ARRAY_SIZE 15000576
#define NUM_THREADS 8 // Adjust based on your CPU cores
typedef struct {
float *a;
float *b;
float *c;
int start;
int end;
} ThreadData;
void *add_arrays(void *arg) {
ThreadData *data = (ThreadData *)arg;
for (int i = data->start; i < data->end; i++) {
data->c[i] = data->a[i] + data->b[i];
}
return NULL;
}
double get_time() {
struct timeval tv;
gettimeofday(&tv, NULL);
return tv.tv_sec + tv.tv_usec * 1e-6;
}
int main() {
float *a = (float*)malloc(ARRAY_SIZE * sizeof(float));
float *b = (float*)malloc(ARRAY_SIZE * sizeof(float));
float *c = (float*)malloc(ARRAY_SIZE * sizeof(float));
// Initialize arrays
for (int i = 0; i < ARRAY_SIZE; i++) {
a[i] = i;
b[i] = i * 2;
}
// Create threads
pthread_t threads[NUM_THREADS];
ThreadData thread_data[NUM_THREADS];
int chunk_size = ARRAY_SIZE / NUM_THREADS;
double start = get_time();
for (int t = 0; t < NUM_THREADS; t++) {
thread_data[t].a = a;
thread_data[t].b = b;
thread_data[t].c = c;
thread_data[t].start = t * chunk_size;
thread_data[t].end = (t == NUM_THREADS - 1) ? ARRAY_SIZE : (t + 1) * chunk_size;
pthread_create(&threads[t], NULL, add_arrays, &thread_data[t]);
}
// Wait for threads to finish
for (int t = 0; t < NUM_THREADS; t++) {
pthread_join(threads[t], NULL);
}
double calc_time = get_time() - start;
printf("Pthreads calculation time: %.6f ms\n", calc_time * 1000);
// Print a sample of the result
for (int i = 0; i < 10; i++) {
printf("c[%d] = %f\n", i, c[i]);
}
free(a);
free(b);
free(c);
return 0;
}

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export async function setupWebAssembly(wasmBuffer) {
const memory = new WebAssembly.Memory({
initial: 2747, // ~172 MB
maximum: 4096 // ~256 MB
});
const { instance } = await WebAssembly.instantiate(wasmBuffer, {
env: {
memory: memory,
emscripten_notify_memory_growth: (index) => {
// This function is called when the WASM module wants to grow memory.
// You can log it or handle it as needed.
console.log(`Memory grew to ${index / 65536} pages`);
},
}
});
const ARRAY_SIZE = 15000576;
const a = instance.exports.alloc_float_array(ARRAY_SIZE);
const b = instance.exports.alloc_float_array(ARRAY_SIZE);
const c = instance.exports.alloc_float_array(ARRAY_SIZE);
if (!a || !b || !c) throw new Error("Failed to allocate memory");
// Benchmark initialization
const initStart = performance.now();
instance.exports.init_arrays(a, b);
const initTime = performance.now() - initStart;
// Benchmark calculation
const calcStart = performance.now();
instance.exports.calculate(a, b, c);
const calcTime = performance.now() - calcStart;
console.log(`Array initialization time: ${initTime.toFixed(3)} ms`);
console.log(`Calculation time: ${calcTime.toFixed(3)} ms`);
console.log(`Total time: ${(initTime + calcTime).toFixed(3)} ms`);
// Sample output
const mem = new Float32Array(instance.exports.memory.buffer);
for (let i = 0; i < 10; i++) {
console.log(`c[${i}] = ${mem[c/4 + i]}`);
}
// Clean up
instance.exports.dealloc_float_array(a);
instance.exports.dealloc_float_array(b);
instance.exports.dealloc_float_array(c);
}

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export async function setupWebAssembly( wasmBuffer, workerData, arraySize, threadCount ) {
const { start, end, sabA, sabB, sabC } = workerData;
var sizePerThread = arraySize / threadCount;
// const a = new Float32Array(sabA);
//const b = new Float32Array(sabB);
//const c = new Float32Array(sabC);
const memory = new WebAssembly.Memory({
initial: 2747, // ~172 MB
maximum: 4096, // ~256 MB
shared: true
});
const { instance } = await WebAssembly.instantiate( wasmBuffer, {
env: {
memory: memory,
emscripten_notify_memory_growth: (index) => {
// This function is called when the WASM module wants to grow memory.
// You can log it or handle it as needed.
console.log(`Memory grew to ${index / 65536} pages`);
},
}
});
const ARRAY_SIZE = 15000576;
const a = instance.exports.alloc_float_array(sizePerThread);
const b = instance.exports.alloc_float_array(sizePerThread);
const c = instance.exports.alloc_float_array(sizePerThread);
//if (!a || !b || !c) throw new Error("Failed to allocate memory");
/*
// Benchmark initialization
const initStart = performance.now();
instance.exports.init_arrays_range(a, b);
const initTime = performance.now() - initStart;
// Benchmark calculation
const calcStart = performance.now();
instance.exports.calculate(a, b, c);
const calcTime = performance.now() - calcStart;
console.log(`Array initialization time: ${initTime.toFixed(3)} ms`);
console.log(`Calculation time: ${calcTime.toFixed(3)} ms`);
console.log(`Total time: ${(initTime + calcTime).toFixed(3)} ms`);
// Sample output
const mem = new Float32Array(instance.exports.memory.buffer);
for (let i = 0; i < 10; i++) {
console.log(`c[${i}] = ${mem[c/4 + i]}`);
}
// Clean up
instance.exports.dealloc_float_array(a);
instance.exports.dealloc_float_array(b);
instance.exports.dealloc_float_array(c);
*/
}

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#include <stdlib.h>
#include <stdio.h>
#include <emscripten/emscripten.h>
#define ARRAY_SIZE 15000576 // 100 million items
EMSCRIPTEN_KEEPALIVE
int* alloc( int size ) {
return ( int * ) malloc( size );
}
EMSCRIPTEN_KEEPALIVE
void dealloc( int * ptr, int size ) {
free( ptr );
}
EMSCRIPTEN_KEEPALIVE
float* alloc_float_array(int size) {
return ( float * ) malloc(size * sizeof(float));
}
EMSCRIPTEN_KEEPALIVE
void dealloc_float_array(float* ptr) {
free(ptr);
}
EMSCRIPTEN_KEEPALIVE
void init_arrays(float* a, float* b) {
for (int i = 0; i < ARRAY_SIZE; i++) {
a[i] = i;
b[i] = i * 2;
}
}
EMSCRIPTEN_KEEPALIVE
void calculate(float* a, float* b, float* c) {
for (int i = 0; i < ARRAY_SIZE; i++) {
c[i] = a[i] + b[i];
}
}

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#include <stdlib.h>
#include <stdio.h>
#include <emscripten/emscripten.h> // For EMSCRIPTEN_KEEPALIVE
#define ARRAY_SIZE 15000576 // 15 million items (still define for context, but not used directly in loops anymore)
EMSCRIPTEN_KEEPALIVE
int* alloc( int size ) {
return ( int * ) malloc( size );
}
EMSCRIPTEN_KEEPALIVE
void dealloc( int * ptr, int size ) {
free( ptr );
}
EMSCRIPTEN_KEEPALIVE
float* alloc_float_array(int size) {
return ( float * ) malloc(size * sizeof(float));
}
EMSCRIPTEN_KEEPALIVE
void dealloc_float_array(float* ptr) {
free(ptr);
}
// Modified init_arrays to operate on a specific range
EMSCRIPTEN_KEEPALIVE
void init_arrays_range(float* a, float* b, int start_idx, int end_idx) {
for (int i = start_idx; i < end_idx; i++) {
a[i] = (float)i;
b[i] = (float)i * 2.0f;
}
}
// Modified calculate to operate on a specific range
EMSCRIPTEN_KEEPALIVE
void calculate_range(float* a, float* b, float* c, int start_idx, int end_idx) {
for (int i = start_idx; i < end_idx; i++) {
c[i] = a[i] + b[i];
}
}

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<script type="module">
import { setupWebAssembly } from "./shared.js"
async function runWasm() {
const response = await fetch('./binaries/wasm_add.wasm');
const wasmBuffer = await response.arrayBuffer();
setupWebAssembly( wasmBuffer );
}
// Run on page load
runWasm().catch(console.error);
</script>

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import fs from 'fs/promises';
import { setupWebAssembly } from "./shared.js"
const wasmBuffer = await fs.readFile('./binaries/wasm_add.wasm');
setupWebAssembly( wasmBuffer );

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import { Worker, isMainThread, parentPort, workerData } from 'worker_threads';
import { WASI } from 'wasi';
import { fileURLToPath } from 'url';
import path from 'path';
import fs from 'fs/promises'; // For async file reading
import os from 'os'; // For optimal NUM_WORKERS
import { performance } from 'perf_hooks'; // For benchmarking
// Helper to get __dirname equivalent in ES Modules for this file
const __filename = fileURLToPath(import.meta.url);
const __dirname = path.dirname(__filename);
// --- Configuration Constants (shared by main and workers where relevant) ---
const ARRAY_SIZE = 15000576; // Must match C code
const NUM_WORKERS = os.cpus().length; // Optimal number of workers based on CPU cores
// WASM Memory configuration (consistent with Emscripten compile flags)
const INITIAL_MEMORY_BYTES = 180224000;
const MAXIMUM_MEMORY_BYTES = 268435456;
const PAGE_SIZE = 65536; // 64KB
// --- WASI Import Version (based on previous successful tests) ---
const WASI_VERSION = 'preview1'; // Or 'wasi_snapshot_preview1', 'wasi_unstable' based on your Node.js's specific requirement.
// --- Main Thread Logic ---
if (isMainThread) {
async function main() {
const wasmPath = './binaries/wasm_add.wasm'; // Path to your compiled WASM binary
try {
// Read the WebAssembly binary file once for all threads
const wasmBuffer = await fs.readFile(wasmPath);
// Call the setupWebAssembly function to initialize and run the benchmarks
await setupWebAssembly(wasmBuffer);
} catch (error) {
console.error("Error during WebAssembly execution:", error);
process.exit(1); // Exit with an error code on failure
}
}
// Call the main function to start the application
main();
} else { // --- Worker Thread Logic ---
// Data passed from the main thread when the worker was created
const { wasmBinary, wasmMemory, functionName, args } = workerData;
// Setup WASI imports for this worker thread's WASM instance
const wasi = new WASI({
version: WASI_VERSION,
args: process.argv,
env: process.env,
preopens: { '.': '.' }
});
// Minimal import object for standalone WASM in a worker
const importObject = {
wasi_snapshot_preview1: wasi.wasiImports, // Provide WASI imports
env: {
memory: wasmMemory, // The shared WebAssembly.Memory object
// Common stubs for functions WASM might try to call (if not handled by WASI)
_abort: () => { console.error("WASM called abort from worker!"); process.exit(1); },
_sbrk: (increment) => {
console.warn(`Worker: _sbrk called with increment ${increment}. Not fully implemented for custom runtime.`);
return 0; // Return dummy value
},
__setThrew: (ptr, val) => {},
__resumeException: (ptr) => {},
},
};
async function initAndRunWorker() {
let instance;
try {
// Instantiate the WASM module within this worker thread
instance = (await WebAssembly.instantiate(wasmBinary, importObject)).instance;
} catch (e) {
console.error("Worker: Failed to instantiate WASM module:", e);
parentPort.postMessage({ type: 'error', message: `WASM instantiation failed: ${e.message}` });
process.exit(1);
}
const exports = instance.exports;
// Call the specified WASM function with its arguments
if (typeof exports[functionName] === 'function') {
try {
exports[functionName](...args);
parentPort.postMessage({ type: 'done' }); // Signal successful completion
} catch (e) {
console.error(`Worker: Error executing ${functionName}:`, e);
parentPort.postMessage({ type: 'error', message: `Execution failed: ${e.message}` });
}
} else {
console.error(`Worker: Function '${functionName}' not found in WASM exports.`);
parentPort.postMessage({ type: 'error', message: `Function '${functionName}' not found.` });
}
process.exit(0); // Exit the worker process cleanly
}
// Start execution in the worker thread
initAndRunWorker();
}
// --- The setupWebAssembly Function (available to both, but called only by main) ---
// This function orchestrates the WASM module loading and parallel execution.
export async function setupWebAssembly(wasmBuffer) {
// Create the shared WebAssembly.Memory object
const memory = new WebAssembly.Memory({
initial: INITIAL_MEMORY_BYTES / PAGE_SIZE,
maximum: MAXIMUM_MEMORY_BYTES / PAGE_SIZE,
shared: true
});
// Setup WASI for the main thread's WASM instance
const wasi = new WASI({
version: WASI_VERSION,
args: process.argv,
env: process.env,
preopens: { '.': '.' }
});
// Instantiate the WASM module on the main thread
const { instance } = await WebAssembly.instantiate(wasmBuffer, {
wasi_snapshot_preview1: wasi.wasiImports, // Provide WASI imports
env: {
memory: memory, // Pass the shared memory
emscripten_notify_memory_growth: (index) => {
console.log(`Memory grew to ${index / 65536} pages`);
},
_abort: () => { console.error("WASM called abort from main!"); process.exit(1); },
_sbrk: (increment) => {
console.warn(`Main: _sbrk called with increment ${increment}. Not fully implemented.`);
return 0;
},
__setThrew: (ptr, val) => {},
__resumeException: (ptr) => {},
}
});
const exports = instance.exports; // Original WASM exports from the main instance
const ARRAY_SIZE = 15000576; // Keep consistent with C code
// Allocate arrays using the main thread's WASM instance (malloc/free are C exports)
const a = exports._alloc_float_array(ARRAY_SIZE);
const b = exports._alloc_float_array(ARRAY_SIZE);
const c = exports._alloc_float_array(ARRAY_SIZE);
if (!a || !b || !c) throw new Error("Failed to allocate memory");
console.log(`Allocated arrays in shared memory at: a=${a}, b=${b}, c=${c}`);
// --- Worker Orchestration Helper (Internal to setupWebAssembly) ---
// This helper function handles spawning workers and waiting for their completion.
async function runRangeTaskInWorkers(wasmFunctionName, arrayPointers) {
const workers = [];
const promises = [];
const chunkSize = Math.ceil(ARRAY_SIZE / NUM_WORKERS);
for (let i = 0; i < NUM_WORKERS; i++) {
const startIdx = i * chunkSize;
const endIdx = Math.min(startIdx + chunkSize, ARRAY_SIZE);
if (startIdx >= ARRAY_SIZE) break; // Stop if no more work chunks
const worker = new Worker(__filename, { // Crucially, the worker executes *this same file*
workerData: {
wasmBinary: wasmBuffer, // Pass the WASM binary data to workers
wasmMemory: memory, // Pass the shared memory object
functionName: wasmFunctionName, // The C function to call in the worker
args: [...arrayPointers, startIdx, endIdx] // Arguments for the C function
}
});
const workerPromise = new Promise((resolve, reject) => {
worker.on('message', (msg) => {
if (msg.type === 'done') {
resolve();
} else if (msg.type === 'error') {
reject(new Error(`Worker error for ${wasmFunctionName}: ${msg.message}`));
}
});
worker.on('error', reject); // Catch errors emitted by the worker process
worker.on('exit', (code) => {
if (code !== 0 && code !== undefined) {
reject(new Error(`Worker exited with code ${code} for ${wasmFunctionName}`));
} else {
resolve(); // Resolve if exited cleanly (code 0 or undefined)
}
});
});
workers.push(worker);
promises.push(workerPromise);
}
// Wait for all workers to complete their assigned tasks
await Promise.all(promises);
}
// --- Override/Wrap original C function calls with worker orchestration ---
// This makes the subsequent benchmark calls look exactly like your original script.
const wrappedExports = {
init_arrays: async (aPtr, bPtr) => {
await runRangeTaskInWorkers('_init_arrays_range', [aPtr, bPtr]);
},
calculate: async (aPtr, bPtr, cPtr) => {
await runRangeTaskInWorkers('_calculate_range', [aPtr, bPtr, cPtr]);
},
// Keep original alloc/dealloc directly from WASM as they are not parallelized
alloc_float_array: exports._alloc_float_array,
dealloc_float_array: exports._dealloc_float_array,
alloc: exports._alloc,
dealloc: exports._dealloc,
// Expose memory for direct access like in your original code
memory: exports.memory, // This points to the same shared memory object
};
// --- Benchmark Execution (This part now perfectly matches your desired input!) ---
// Benchmark initialization
const initStart = performance.now();
await wrappedExports.init_arrays(a, b); // Calls the JS wrapper
const initTime = performance.now() - initStart;
// Benchmark calculation
const calcStart = performance.now();
await wrappedExports.calculate(a, b, c); // Calls the JS wrapper
const calcTime = performance.now() - calcStart;
console.log(`Array initialization time: ${initTime.toFixed(3)} ms`);
console.log(`Calculation time: ${calcTime.toFixed(3)} ms`);
console.log(`Total time: ${(initTime + calcTime).toFixed(3)} ms`);
// Sample output
// Access memory via the original instance's exports.memory (or the shared 'memory' var)
const mem = new Float32Array(wrappedExports.memory.buffer);
for (let i = 0; i < 10; i++) {
console.log(`c[${i}] = ${mem[c/4 + i]}`);
}
// Clean up
wrappedExports.dealloc_float_array(a);
wrappedExports.dealloc_float_array(b);
wrappedExports.dealloc_float_array(c);
}

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emcc wasm_add_pthread.c \
-O3 \
-s USE_PTHREADS=1 \
-s PTHREAD_POOL_SIZE=8 \
-s ALLOW_MEMORY_GROWTH=0 \
-s INITIAL_MEMORY=256MB \
-s EXPORTED_FUNCTIONS='["_alloc_float_array","_dealloc_float_array","_init_arrays","_calculate_range"]' \
-s EXPORTED_RUNTIME_METHODS='["ccall","cwrap","wasmMemory"]' \
--no-entry \
-o ./binaries/wasm_add_pthread.js \
-s EXPORT_ES6=1 \
-s MODULARIZE=1 \
-s ENVIRONMENT=node
emcc wasm_add_pthread.c \
-O3 \
-s USE_PTHREADS=1 \
-s PTHREAD_POOL_SIZE=8 \
-s ALLOW_MEMORY_GROWTH=1 \
-s INITIAL_MEMORY=256MB \
-s EXPORTED_FUNCTIONS='["_alloc_float_array","_dealloc_float_array","_init_arrays","_calculate_range"]' \
-s EXPORTED_RUNTIME_METHODS='["ccall","cwrap","HEAPU8"]' \
--no-entry \
-o ./web/wasm_add_pthread.js \
-s EXPORT_ES6=1 \
-s MODULARIZE=1 \
-s ENVIRONMENT=web
//node main.js
#if you do EXPORT_ES6 will the glue file be es6 and be more sturctured?

60
wasm_pthread_fast/main.js Normal file
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@@ -0,0 +1,60 @@
import WasmModule from './binaries/wasm_add_pthread.js';
async function main() {
const loadStart = Date.now();
const wasmModule = await WasmModule();
const loadDuration = Date.now() - loadStart;
console.log(`WASM module load time: ${loadDuration} ms`);
if (!wasmModule.wasmMemory || !wasmModule.wasmMemory.buffer) {
console.error("wasmMemory or wasmMemory.buffer not found!");
process.exit(1);
}
const ARRAY_SIZE = 15000576;
const allocStart = Date.now();
const aPtr = wasmModule._alloc_float_array(ARRAY_SIZE);
const bPtr = wasmModule._alloc_float_array(ARRAY_SIZE);
const cPtr = wasmModule._alloc_float_array(ARRAY_SIZE);
const allocDuration = Date.now() - allocStart;
console.log(`Memory allocation time: ${allocDuration} ms`);
const initStart = Date.now();
wasmModule._init_arrays(aPtr, bPtr);
const initDuration = Date.now() - initStart;
console.log(`Array initialization time: ${initDuration} ms`);
const memory = new Float32Array(wasmModule.wasmMemory.buffer);
const calcStart = Date.now();
for (let i = 0; i < 100; i++) {
wasmModule._calculate_range(aPtr, bPtr, cPtr, 0, ARRAY_SIZE);
}
const calcDuration = Date.now() - calcStart;
console.log(`Average calc time: ${(calcDuration / 100).toFixed(2)} ms`);
for (let i = 0; i < 10; i++) {
console.log(`c[${i}] = ${memory[cPtr / 4 + i]}`);
}
var testSize = 1000000;
// Benchmark the copy process
const copyStart = Date.now();
const jsArray = new Float32Array(testSize);
jsArray.set(memory.subarray(aPtr / 4, aPtr / 4 + testSize));
const copyDuration = Date.now() - copyStart;
console.log(`Copy time from WASM to JS ${testSize} items: ${copyDuration} ms`);
// the jsArray can be used inside WebGpu.
const deallocStart = Date.now();
wasmModule._dealloc_float_array(aPtr);
wasmModule._dealloc_float_array(bPtr);
wasmModule._dealloc_float_array(cPtr);
const deallocDuration = Date.now() - deallocStart;
console.log(`Memory deallocation time: ${deallocDuration} ms`);
}
main();

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@@ -0,0 +1,51 @@
#include <stdlib.h>
#include <stdio.h>
#include <emscripten/emscripten.h> // For EMSCRIPTEN_KEEPALIVE
#define ARRAY_SIZE 15000576 // 15 million items (still define for context, but not used directly in loops anymore)
EMSCRIPTEN_KEEPALIVE
int* alloc( int size ) {
return ( int * ) malloc( size );
}
EMSCRIPTEN_KEEPALIVE
void dealloc( int * ptr, int size ) {
free( ptr );
}
EMSCRIPTEN_KEEPALIVE
float* alloc_float_array(int size) {
return ( float * ) malloc(size * sizeof(float));
}
EMSCRIPTEN_KEEPALIVE
void dealloc_float_array(float* ptr) {
free(ptr);
}
EMSCRIPTEN_KEEPALIVE
void init_arrays(float* a, float* b) {
for (int i = 0; i < ARRAY_SIZE; i++) {
a[i] = i;
b[i] = i * 2;
}
}
// Modified init_arrays to operate on a specific range
EMSCRIPTEN_KEEPALIVE
void init_arrays_range(float* a, float* b, int start_idx, int end_idx) {
for (int i = start_idx; i < end_idx; i++) {
a[i] = (float)i;
b[i] = (float)i * 2.0f;
}
}
// Modified calculate to operate on a specific range
EMSCRIPTEN_KEEPALIVE
void calculate_range(float* a, float* b, float* c, int start, int end) {
for (int i = start; i < end; ++i) {
c[i] = a[i] + b[i];
}
}

View File

@@ -0,0 +1,2 @@
Header set Cross-Origin-Opener-Policy "same-origin"
Header set Cross-Origin-Embedder-Policy "require-corp"

View File

@@ -0,0 +1,59 @@
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
<title>WASM Pthreads Demo</title>
<script type="module">
import WasmModule from './wasm_add_pthread.js';
async function main() {
const loadStart = performance.now();
const wasmModule = await WasmModule(); // fully initialized
const loadDuration = performance.now() - loadStart;
console.log(`WASM module load time: ${loadDuration} ms`);
if (!wasmModule.HEAPU8 || !wasmModule.HEAPU8.buffer) {
console.error("HEAPU8 or HEAPU8.buffer not found!");
return;
}
const ARRAY_SIZE = 15000576;
const allocStart = performance.now();
const aPtr = wasmModule._alloc_float_array(ARRAY_SIZE);
const bPtr = wasmModule._alloc_float_array(ARRAY_SIZE);
const cPtr = wasmModule._alloc_float_array(ARRAY_SIZE);
const allocDuration = performance.now() - allocStart;
console.log(`Memory allocation time: ${allocDuration} ms`);
const initStart = performance.now();
wasmModule._init_arrays(aPtr, bPtr);
const initDuration = performance.now() - initStart;
console.log(`Array initialization time: ${initDuration} ms`);
// Create a Float32Array view on the WASM memory buffer
const memory = new Float32Array(wasmModule.HEAPU8.buffer);
const calcStart = performance.now();
for (let i = 0; i < 100; i++) {
wasmModule._calculate_range(aPtr, bPtr, cPtr, 0, ARRAY_SIZE);
}
const calcDuration = performance.now() - calcStart;
console.log(`Average calc time: ${(calcDuration / 100).toFixed(2)} ms`);
for (let i = 0; i < 10; i++) {
console.log(`c[${i}] = ${memory[cPtr / 4 + i]}`);
}
const deallocStart = performance.now();
wasmModule._dealloc_float_array(aPtr);
wasmModule._dealloc_float_array(bPtr);
wasmModule._dealloc_float_array(cPtr);
const deallocDuration = performance.now() - deallocStart;
console.log(`Memory deallocation time: ${deallocDuration} ms`);
}
main();
</script>
</head>
<body></body>
</html>

View File

@@ -0,0 +1,28 @@
-----BEGIN PRIVATE KEY-----
MIIEvQIBADANBgkqhkiG9w0BAQEFAASCBKcwggSjAgEAAoIBAQCdlbNuZmMKlBnd
ejb2tdraBEc+6RDg5BFi2du63Bpg/+dOs84RcGz0Cut8lvWVGxHanbzef8jcNO4e
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+A1PorOLVX2T4j+YmSvqznk=
-----END PRIVATE KEY-----

View File

@@ -0,0 +1,25 @@
-----BEGIN CERTIFICATE-----
MIIEPDCCAqSgAwIBAgIQTY87xE65kgtZgRHK6xB2vDANBgkqhkiG9w0BAQsFADBv
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-----END CERTIFICATE-----

824
wasm_pthread_fast/web/node_modules/.package-lock.json generated vendored Normal file
View File

@@ -0,0 +1,824 @@
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"license": "ISC"
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}

250
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2.0.0 / 2024-08-31
==================
* Drop node <18 support
* deps: mime-types@^3.0.0
* deps: negotiator@^1.0.0
1.3.8 / 2022-02-02
==================
* deps: mime-types@~2.1.34
- deps: mime-db@~1.51.0
* deps: negotiator@0.6.3
1.3.7 / 2019-04-29
==================
* deps: negotiator@0.6.2
- Fix sorting charset, encoding, and language with extra parameters
1.3.6 / 2019-04-28
==================
* deps: mime-types@~2.1.24
- deps: mime-db@~1.40.0
1.3.5 / 2018-02-28
==================
* deps: mime-types@~2.1.18
- deps: mime-db@~1.33.0
1.3.4 / 2017-08-22
==================
* deps: mime-types@~2.1.16
- deps: mime-db@~1.29.0
1.3.3 / 2016-05-02
==================
* deps: mime-types@~2.1.11
- deps: mime-db@~1.23.0
* deps: negotiator@0.6.1
- perf: improve `Accept` parsing speed
- perf: improve `Accept-Charset` parsing speed
- perf: improve `Accept-Encoding` parsing speed
- perf: improve `Accept-Language` parsing speed
1.3.2 / 2016-03-08
==================
* deps: mime-types@~2.1.10
- Fix extension of `application/dash+xml`
- Update primary extension for `audio/mp4`
- deps: mime-db@~1.22.0
1.3.1 / 2016-01-19
==================
* deps: mime-types@~2.1.9
- deps: mime-db@~1.21.0
1.3.0 / 2015-09-29
==================
* deps: mime-types@~2.1.7
- deps: mime-db@~1.19.0
* deps: negotiator@0.6.0
- Fix including type extensions in parameters in `Accept` parsing
- Fix parsing `Accept` parameters with quoted equals
- Fix parsing `Accept` parameters with quoted semicolons
- Lazy-load modules from main entry point
- perf: delay type concatenation until needed
- perf: enable strict mode
- perf: hoist regular expressions
- perf: remove closures getting spec properties
- perf: remove a closure from media type parsing
- perf: remove property delete from media type parsing
1.2.13 / 2015-09-06
===================
* deps: mime-types@~2.1.6
- deps: mime-db@~1.18.0
1.2.12 / 2015-07-30
===================
* deps: mime-types@~2.1.4
- deps: mime-db@~1.16.0
1.2.11 / 2015-07-16
===================
* deps: mime-types@~2.1.3
- deps: mime-db@~1.15.0
1.2.10 / 2015-07-01
===================
* deps: mime-types@~2.1.2
- deps: mime-db@~1.14.0
1.2.9 / 2015-06-08
==================
* deps: mime-types@~2.1.1
- perf: fix deopt during mapping
1.2.8 / 2015-06-07
==================
* deps: mime-types@~2.1.0
- deps: mime-db@~1.13.0
* perf: avoid argument reassignment & argument slice
* perf: avoid negotiator recursive construction
* perf: enable strict mode
* perf: remove unnecessary bitwise operator
1.2.7 / 2015-05-10
==================
* deps: negotiator@0.5.3
- Fix media type parameter matching to be case-insensitive
1.2.6 / 2015-05-07
==================
* deps: mime-types@~2.0.11
- deps: mime-db@~1.9.1
* deps: negotiator@0.5.2
- Fix comparing media types with quoted values
- Fix splitting media types with quoted commas
1.2.5 / 2015-03-13
==================
* deps: mime-types@~2.0.10
- deps: mime-db@~1.8.0
1.2.4 / 2015-02-14
==================
* Support Node.js 0.6
* deps: mime-types@~2.0.9
- deps: mime-db@~1.7.0
* deps: negotiator@0.5.1
- Fix preference sorting to be stable for long acceptable lists
1.2.3 / 2015-01-31
==================
* deps: mime-types@~2.0.8
- deps: mime-db@~1.6.0
1.2.2 / 2014-12-30
==================
* deps: mime-types@~2.0.7
- deps: mime-db@~1.5.0
1.2.1 / 2014-12-30
==================
* deps: mime-types@~2.0.5
- deps: mime-db@~1.3.1
1.2.0 / 2014-12-19
==================
* deps: negotiator@0.5.0
- Fix list return order when large accepted list
- Fix missing identity encoding when q=0 exists
- Remove dynamic building of Negotiator class
1.1.4 / 2014-12-10
==================
* deps: mime-types@~2.0.4
- deps: mime-db@~1.3.0
1.1.3 / 2014-11-09
==================
* deps: mime-types@~2.0.3
- deps: mime-db@~1.2.0
1.1.2 / 2014-10-14
==================
* deps: negotiator@0.4.9
- Fix error when media type has invalid parameter
1.1.1 / 2014-09-28
==================
* deps: mime-types@~2.0.2
- deps: mime-db@~1.1.0
* deps: negotiator@0.4.8
- Fix all negotiations to be case-insensitive
- Stable sort preferences of same quality according to client order
1.1.0 / 2014-09-02
==================
* update `mime-types`
1.0.7 / 2014-07-04
==================
* Fix wrong type returned from `type` when match after unknown extension
1.0.6 / 2014-06-24
==================
* deps: negotiator@0.4.7
1.0.5 / 2014-06-20
==================
* fix crash when unknown extension given
1.0.4 / 2014-06-19
==================
* use `mime-types`
1.0.3 / 2014-06-11
==================
* deps: negotiator@0.4.6
- Order by specificity when quality is the same
1.0.2 / 2014-05-29
==================
* Fix interpretation when header not in request
* deps: pin negotiator@0.4.5
1.0.1 / 2014-01-18
==================
* Identity encoding isn't always acceptable
* deps: negotiator@~0.4.0
1.0.0 / 2013-12-27
==================
* Genesis

23
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(The MIT License)
Copyright (c) 2014 Jonathan Ong <me@jongleberry.com>
Copyright (c) 2015 Douglas Christopher Wilson <doug@somethingdoug.com>
Permission is hereby granted, free of charge, to any person obtaining
a copy of this software and associated documentation files (the
'Software'), to deal in the Software without restriction, including
without limitation the rights to use, copy, modify, merge, publish,
distribute, sublicense, and/or sell copies of the Software, and to
permit persons to whom the Software is furnished to do so, subject to
the following conditions:
The above copyright notice and this permission notice shall be
included in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND,
EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

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# accepts
[![NPM Version][npm-version-image]][npm-url]
[![NPM Downloads][npm-downloads-image]][npm-url]
[![Node.js Version][node-version-image]][node-version-url]
[![Build Status][github-actions-ci-image]][github-actions-ci-url]
[![Test Coverage][coveralls-image]][coveralls-url]
Higher level content negotiation based on [negotiator](https://www.npmjs.com/package/negotiator).
Extracted from [koa](https://www.npmjs.com/package/koa) for general use.
In addition to negotiator, it allows:
- Allows types as an array or arguments list, ie `(['text/html', 'application/json'])`
as well as `('text/html', 'application/json')`.
- Allows type shorthands such as `json`.
- Returns `false` when no types match
- Treats non-existent headers as `*`
## Installation
This is a [Node.js](https://nodejs.org/en/) module available through the
[npm registry](https://www.npmjs.com/). Installation is done using the
[`npm install` command](https://docs.npmjs.com/getting-started/installing-npm-packages-locally):
```sh
$ npm install accepts
```
## API
```js
var accepts = require('accepts')
```
### accepts(req)
Create a new `Accepts` object for the given `req`.
#### .charset(charsets)
Return the first accepted charset. If nothing in `charsets` is accepted,
then `false` is returned.
#### .charsets()
Return the charsets that the request accepts, in the order of the client's
preference (most preferred first).
#### .encoding(encodings)
Return the first accepted encoding. If nothing in `encodings` is accepted,
then `false` is returned.
#### .encodings()
Return the encodings that the request accepts, in the order of the client's
preference (most preferred first).
#### .language(languages)
Return the first accepted language. If nothing in `languages` is accepted,
then `false` is returned.
#### .languages()
Return the languages that the request accepts, in the order of the client's
preference (most preferred first).
#### .type(types)
Return the first accepted type (and it is returned as the same text as what
appears in the `types` array). If nothing in `types` is accepted, then `false`
is returned.
The `types` array can contain full MIME types or file extensions. Any value
that is not a full MIME type is passed to `require('mime-types').lookup`.
#### .types()
Return the types that the request accepts, in the order of the client's
preference (most preferred first).
## Examples
### Simple type negotiation
This simple example shows how to use `accepts` to return a different typed
respond body based on what the client wants to accept. The server lists it's
preferences in order and will get back the best match between the client and
server.
```js
var accepts = require('accepts')
var http = require('http')
function app (req, res) {
var accept = accepts(req)
// the order of this list is significant; should be server preferred order
switch (accept.type(['json', 'html'])) {
case 'json':
res.setHeader('Content-Type', 'application/json')
res.write('{"hello":"world!"}')
break
case 'html':
res.setHeader('Content-Type', 'text/html')
res.write('<b>hello, world!</b>')
break
default:
// the fallback is text/plain, so no need to specify it above
res.setHeader('Content-Type', 'text/plain')
res.write('hello, world!')
break
}
res.end()
}
http.createServer(app).listen(3000)
```
You can test this out with the cURL program:
```sh
curl -I -H'Accept: text/html' http://localhost:3000/
```
## License
[MIT](LICENSE)
[coveralls-image]: https://badgen.net/coveralls/c/github/jshttp/accepts/master
[coveralls-url]: https://coveralls.io/r/jshttp/accepts?branch=master
[github-actions-ci-image]: https://badgen.net/github/checks/jshttp/accepts/master?label=ci
[github-actions-ci-url]: https://github.com/jshttp/accepts/actions/workflows/ci.yml
[node-version-image]: https://badgen.net/npm/node/accepts
[node-version-url]: https://nodejs.org/en/download
[npm-downloads-image]: https://badgen.net/npm/dm/accepts
[npm-url]: https://npmjs.org/package/accepts
[npm-version-image]: https://badgen.net/npm/v/accepts

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/*!
* accepts
* Copyright(c) 2014 Jonathan Ong
* Copyright(c) 2015 Douglas Christopher Wilson
* MIT Licensed
*/
'use strict'
/**
* Module dependencies.
* @private
*/
var Negotiator = require('negotiator')
var mime = require('mime-types')
/**
* Module exports.
* @public
*/
module.exports = Accepts
/**
* Create a new Accepts object for the given req.
*
* @param {object} req
* @public
*/
function Accepts (req) {
if (!(this instanceof Accepts)) {
return new Accepts(req)
}
this.headers = req.headers
this.negotiator = new Negotiator(req)
}
/**
* Check if the given `type(s)` is acceptable, returning
* the best match when true, otherwise `undefined`, in which
* case you should respond with 406 "Not Acceptable".
*
* The `type` value may be a single mime type string
* such as "application/json", the extension name
* such as "json" or an array `["json", "html", "text/plain"]`. When a list
* or array is given the _best_ match, if any is returned.
*
* Examples:
*
* // Accept: text/html
* this.types('html');
* // => "html"
*
* // Accept: text/*, application/json
* this.types('html');
* // => "html"
* this.types('text/html');
* // => "text/html"
* this.types('json', 'text');
* // => "json"
* this.types('application/json');
* // => "application/json"
*
* // Accept: text/*, application/json
* this.types('image/png');
* this.types('png');
* // => undefined
*
* // Accept: text/*;q=.5, application/json
* this.types(['html', 'json']);
* this.types('html', 'json');
* // => "json"
*
* @param {String|Array} types...
* @return {String|Array|Boolean}
* @public
*/
Accepts.prototype.type =
Accepts.prototype.types = function (types_) {
var types = types_
// support flattened arguments
if (types && !Array.isArray(types)) {
types = new Array(arguments.length)
for (var i = 0; i < types.length; i++) {
types[i] = arguments[i]
}
}
// no types, return all requested types
if (!types || types.length === 0) {
return this.negotiator.mediaTypes()
}
// no accept header, return first given type
if (!this.headers.accept) {
return types[0]
}
var mimes = types.map(extToMime)
var accepts = this.negotiator.mediaTypes(mimes.filter(validMime))
var first = accepts[0]
return first
? types[mimes.indexOf(first)]
: false
}
/**
* Return accepted encodings or best fit based on `encodings`.
*
* Given `Accept-Encoding: gzip, deflate`
* an array sorted by quality is returned:
*
* ['gzip', 'deflate']
*
* @param {String|Array} encodings...
* @return {String|Array}
* @public
*/
Accepts.prototype.encoding =
Accepts.prototype.encodings = function (encodings_) {
var encodings = encodings_
// support flattened arguments
if (encodings && !Array.isArray(encodings)) {
encodings = new Array(arguments.length)
for (var i = 0; i < encodings.length; i++) {
encodings[i] = arguments[i]
}
}
// no encodings, return all requested encodings
if (!encodings || encodings.length === 0) {
return this.negotiator.encodings()
}
return this.negotiator.encodings(encodings)[0] || false
}
/**
* Return accepted charsets or best fit based on `charsets`.
*
* Given `Accept-Charset: utf-8, iso-8859-1;q=0.2, utf-7;q=0.5`
* an array sorted by quality is returned:
*
* ['utf-8', 'utf-7', 'iso-8859-1']
*
* @param {String|Array} charsets...
* @return {String|Array}
* @public
*/
Accepts.prototype.charset =
Accepts.prototype.charsets = function (charsets_) {
var charsets = charsets_
// support flattened arguments
if (charsets && !Array.isArray(charsets)) {
charsets = new Array(arguments.length)
for (var i = 0; i < charsets.length; i++) {
charsets[i] = arguments[i]
}
}
// no charsets, return all requested charsets
if (!charsets || charsets.length === 0) {
return this.negotiator.charsets()
}
return this.negotiator.charsets(charsets)[0] || false
}
/**
* Return accepted languages or best fit based on `langs`.
*
* Given `Accept-Language: en;q=0.8, es, pt`
* an array sorted by quality is returned:
*
* ['es', 'pt', 'en']
*
* @param {String|Array} langs...
* @return {Array|String}
* @public
*/
Accepts.prototype.lang =
Accepts.prototype.langs =
Accepts.prototype.language =
Accepts.prototype.languages = function (languages_) {
var languages = languages_
// support flattened arguments
if (languages && !Array.isArray(languages)) {
languages = new Array(arguments.length)
for (var i = 0; i < languages.length; i++) {
languages[i] = arguments[i]
}
}
// no languages, return all requested languages
if (!languages || languages.length === 0) {
return this.negotiator.languages()
}
return this.negotiator.languages(languages)[0] || false
}
/**
* Convert extnames to mime.
*
* @param {String} type
* @return {String}
* @private
*/
function extToMime (type) {
return type.indexOf('/') === -1
? mime.lookup(type)
: type
}
/**
* Check if mime is valid.
*
* @param {String} type
* @return {Boolean}
* @private
*/
function validMime (type) {
return typeof type === 'string'
}

View File

@@ -0,0 +1,47 @@
{
"name": "accepts",
"description": "Higher-level content negotiation",
"version": "2.0.0",
"contributors": [
"Douglas Christopher Wilson <doug@somethingdoug.com>",
"Jonathan Ong <me@jongleberry.com> (http://jongleberry.com)"
],
"license": "MIT",
"repository": "jshttp/accepts",
"dependencies": {
"mime-types": "^3.0.0",
"negotiator": "^1.0.0"
},
"devDependencies": {
"deep-equal": "1.0.1",
"eslint": "7.32.0",
"eslint-config-standard": "14.1.1",
"eslint-plugin-import": "2.25.4",
"eslint-plugin-markdown": "2.2.1",
"eslint-plugin-node": "11.1.0",
"eslint-plugin-promise": "4.3.1",
"eslint-plugin-standard": "4.1.0",
"mocha": "9.2.0",
"nyc": "15.1.0"
},
"files": [
"LICENSE",
"HISTORY.md",
"index.js"
],
"engines": {
"node": ">= 0.6"
},
"scripts": {
"lint": "eslint .",
"test": "mocha --reporter spec --check-leaks --bail test/",
"test-ci": "nyc --reporter=lcov --reporter=text npm test",
"test-cov": "nyc --reporter=html --reporter=text npm test"
},
"keywords": [
"content",
"negotiation",
"accept",
"accepts"
]
}

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2.2.0 / 2025-03-27
=========================
* refactor: normalize common options for all parsers
* deps:
* iconv-lite@^0.6.3
2.1.0 / 2025-02-10
=========================
* deps:
* type-is@^2.0.0
* debug@^4.4.0
* Removed destroy
* refactor: prefix built-in node module imports
* use the node require cache instead of custom caching
2.0.2 / 2024-10-31
=========================
* remove `unpipe` package and use native `unpipe()` method
2.0.1 / 2024-09-10
=========================
* Restore expected behavior `extended` to `false`
2.0.0 / 2024-09-10
=========================
* Propagate changes from 1.20.3
* add brotli support #406
* Breaking Change: Node.js 18 is the minimum supported version
2.0.0-beta.2 / 2023-02-23
=========================
This incorporates all changes after 1.19.1 up to 1.20.2.
* Remove deprecated `bodyParser()` combination middleware
* deps: debug@3.1.0
- Add `DEBUG_HIDE_DATE` environment variable
- Change timer to per-namespace instead of global
- Change non-TTY date format
- Remove `DEBUG_FD` environment variable support
- Support 256 namespace colors
* deps: iconv-lite@0.5.2
- Add encoding cp720
- Add encoding UTF-32
* deps: raw-body@3.0.0-beta.1
2.0.0-beta.1 / 2021-12-17
=========================
* Drop support for Node.js 0.8
* `req.body` is no longer always initialized to `{}`
- it is left `undefined` unless a body is parsed
* `urlencoded` parser now defaults `extended` to `false`
* Use `on-finished` to determine when body read
1.20.3 / 2024-09-10
===================
* deps: qs@6.13.0
* add `depth` option to customize the depth level in the parser
* IMPORTANT: The default `depth` level for parsing URL-encoded data is now `32` (previously was `Infinity`)
1.20.2 / 2023-02-21
===================
* Fix strict json error message on Node.js 19+
* deps: content-type@~1.0.5
- perf: skip value escaping when unnecessary
* deps: raw-body@2.5.2
1.20.1 / 2022-10-06
===================
* deps: qs@6.11.0
* perf: remove unnecessary object clone
1.20.0 / 2022-04-02
===================
* Fix error message for json parse whitespace in `strict`
* Fix internal error when inflated body exceeds limit
* Prevent loss of async hooks context
* Prevent hanging when request already read
* deps: depd@2.0.0
- Replace internal `eval` usage with `Function` constructor
- Use instance methods on `process` to check for listeners
* deps: http-errors@2.0.0
- deps: depd@2.0.0
- deps: statuses@2.0.1
* deps: on-finished@2.4.1
* deps: qs@6.10.3
* deps: raw-body@2.5.1
- deps: http-errors@2.0.0
1.19.2 / 2022-02-15
===================
* deps: bytes@3.1.2
* deps: qs@6.9.7
* Fix handling of `__proto__` keys
* deps: raw-body@2.4.3
- deps: bytes@3.1.2
1.19.1 / 2021-12-10
===================
* deps: bytes@3.1.1
* deps: http-errors@1.8.1
- deps: inherits@2.0.4
- deps: toidentifier@1.0.1
- deps: setprototypeof@1.2.0
* deps: qs@6.9.6
* deps: raw-body@2.4.2
- deps: bytes@3.1.1
- deps: http-errors@1.8.1
* deps: safe-buffer@5.2.1
* deps: type-is@~1.6.18
1.19.0 / 2019-04-25
===================
* deps: bytes@3.1.0
- Add petabyte (`pb`) support
* deps: http-errors@1.7.2
- Set constructor name when possible
- deps: setprototypeof@1.1.1
- deps: statuses@'>= 1.5.0 < 2'
* deps: iconv-lite@0.4.24
- Added encoding MIK
* deps: qs@6.7.0
- Fix parsing array brackets after index
* deps: raw-body@2.4.0
- deps: bytes@3.1.0
- deps: http-errors@1.7.2
- deps: iconv-lite@0.4.24
* deps: type-is@~1.6.17
- deps: mime-types@~2.1.24
- perf: prevent internal `throw` on invalid type
1.18.3 / 2018-05-14
===================
* Fix stack trace for strict json parse error
* deps: depd@~1.1.2
- perf: remove argument reassignment
* deps: http-errors@~1.6.3
- deps: depd@~1.1.2
- deps: setprototypeof@1.1.0
- deps: statuses@'>= 1.3.1 < 2'
* deps: iconv-lite@0.4.23
- Fix loading encoding with year appended
- Fix deprecation warnings on Node.js 10+
* deps: qs@6.5.2
* deps: raw-body@2.3.3
- deps: http-errors@1.6.3
- deps: iconv-lite@0.4.23
* deps: type-is@~1.6.16
- deps: mime-types@~2.1.18
1.18.2 / 2017-09-22
===================
* deps: debug@2.6.9
* perf: remove argument reassignment
1.18.1 / 2017-09-12
===================
* deps: content-type@~1.0.4
- perf: remove argument reassignment
- perf: skip parameter parsing when no parameters
* deps: iconv-lite@0.4.19
- Fix ISO-8859-1 regression
- Update Windows-1255
* deps: qs@6.5.1
- Fix parsing & compacting very deep objects
* deps: raw-body@2.3.2
- deps: iconv-lite@0.4.19
1.18.0 / 2017-09-08
===================
* Fix JSON strict violation error to match native parse error
* Include the `body` property on verify errors
* Include the `type` property on all generated errors
* Use `http-errors` to set status code on errors
* deps: bytes@3.0.0
* deps: debug@2.6.8
* deps: depd@~1.1.1
- Remove unnecessary `Buffer` loading
* deps: http-errors@~1.6.2
- deps: depd@1.1.1
* deps: iconv-lite@0.4.18
- Add support for React Native
- Add a warning if not loaded as utf-8
- Fix CESU-8 decoding in Node.js 8
- Improve speed of ISO-8859-1 encoding
* deps: qs@6.5.0
* deps: raw-body@2.3.1
- Use `http-errors` for standard emitted errors
- deps: bytes@3.0.0
- deps: iconv-lite@0.4.18
- perf: skip buffer decoding on overage chunk
* perf: prevent internal `throw` when missing charset
1.17.2 / 2017-05-17
===================
* deps: debug@2.6.7
- Fix `DEBUG_MAX_ARRAY_LENGTH`
- deps: ms@2.0.0
* deps: type-is@~1.6.15
- deps: mime-types@~2.1.15
1.17.1 / 2017-03-06
===================
* deps: qs@6.4.0
- Fix regression parsing keys starting with `[`
1.17.0 / 2017-03-01
===================
* deps: http-errors@~1.6.1
- Make `message` property enumerable for `HttpError`s
- deps: setprototypeof@1.0.3
* deps: qs@6.3.1
- Fix compacting nested arrays
1.16.1 / 2017-02-10
===================
* deps: debug@2.6.1
- Fix deprecation messages in WebStorm and other editors
- Undeprecate `DEBUG_FD` set to `1` or `2`
1.16.0 / 2017-01-17
===================
* deps: debug@2.6.0
- Allow colors in workers
- Deprecated `DEBUG_FD` environment variable
- Fix error when running under React Native
- Use same color for same namespace
- deps: ms@0.7.2
* deps: http-errors@~1.5.1
- deps: inherits@2.0.3
- deps: setprototypeof@1.0.2
- deps: statuses@'>= 1.3.1 < 2'
* deps: iconv-lite@0.4.15
- Added encoding MS-31J
- Added encoding MS-932
- Added encoding MS-936
- Added encoding MS-949
- Added encoding MS-950
- Fix GBK/GB18030 handling of Euro character
* deps: qs@6.2.1
- Fix array parsing from skipping empty values
* deps: raw-body@~2.2.0
- deps: iconv-lite@0.4.15
* deps: type-is@~1.6.14
- deps: mime-types@~2.1.13
1.15.2 / 2016-06-19
===================
* deps: bytes@2.4.0
* deps: content-type@~1.0.2
- perf: enable strict mode
* deps: http-errors@~1.5.0
- Use `setprototypeof` module to replace `__proto__` setting
- deps: statuses@'>= 1.3.0 < 2'
- perf: enable strict mode
* deps: qs@6.2.0
* deps: raw-body@~2.1.7
- deps: bytes@2.4.0
- perf: remove double-cleanup on happy path
* deps: type-is@~1.6.13
- deps: mime-types@~2.1.11
1.15.1 / 2016-05-05
===================
* deps: bytes@2.3.0
- Drop partial bytes on all parsed units
- Fix parsing byte string that looks like hex
* deps: raw-body@~2.1.6
- deps: bytes@2.3.0
* deps: type-is@~1.6.12
- deps: mime-types@~2.1.10
1.15.0 / 2016-02-10
===================
* deps: http-errors@~1.4.0
- Add `HttpError` export, for `err instanceof createError.HttpError`
- deps: inherits@2.0.1
- deps: statuses@'>= 1.2.1 < 2'
* deps: qs@6.1.0
* deps: type-is@~1.6.11
- deps: mime-types@~2.1.9
1.14.2 / 2015-12-16
===================
* deps: bytes@2.2.0
* deps: iconv-lite@0.4.13
* deps: qs@5.2.0
* deps: raw-body@~2.1.5
- deps: bytes@2.2.0
- deps: iconv-lite@0.4.13
* deps: type-is@~1.6.10
- deps: mime-types@~2.1.8
1.14.1 / 2015-09-27
===================
* Fix issue where invalid charset results in 400 when `verify` used
* deps: iconv-lite@0.4.12
- Fix CESU-8 decoding in Node.js 4.x
* deps: raw-body@~2.1.4
- Fix masking critical errors from `iconv-lite`
- deps: iconv-lite@0.4.12
* deps: type-is@~1.6.9
- deps: mime-types@~2.1.7
1.14.0 / 2015-09-16
===================
* Fix JSON strict parse error to match syntax errors
* Provide static `require` analysis in `urlencoded` parser
* deps: depd@~1.1.0
- Support web browser loading
* deps: qs@5.1.0
* deps: raw-body@~2.1.3
- Fix sync callback when attaching data listener causes sync read
* deps: type-is@~1.6.8
- Fix type error when given invalid type to match against
- deps: mime-types@~2.1.6
1.13.3 / 2015-07-31
===================
* deps: type-is@~1.6.6
- deps: mime-types@~2.1.4
1.13.2 / 2015-07-05
===================
* deps: iconv-lite@0.4.11
* deps: qs@4.0.0
- Fix dropping parameters like `hasOwnProperty`
- Fix user-visible incompatibilities from 3.1.0
- Fix various parsing edge cases
* deps: raw-body@~2.1.2
- Fix error stack traces to skip `makeError`
- deps: iconv-lite@0.4.11
* deps: type-is@~1.6.4
- deps: mime-types@~2.1.2
- perf: enable strict mode
- perf: remove argument reassignment
1.13.1 / 2015-06-16
===================
* deps: qs@2.4.2
- Downgraded from 3.1.0 because of user-visible incompatibilities
1.13.0 / 2015-06-14
===================
* Add `statusCode` property on `Error`s, in addition to `status`
* Change `type` default to `application/json` for JSON parser
* Change `type` default to `application/x-www-form-urlencoded` for urlencoded parser
* Provide static `require` analysis
* Use the `http-errors` module to generate errors
* deps: bytes@2.1.0
- Slight optimizations
* deps: iconv-lite@0.4.10
- The encoding UTF-16 without BOM now defaults to UTF-16LE when detection fails
- Leading BOM is now removed when decoding
* deps: on-finished@~2.3.0
- Add defined behavior for HTTP `CONNECT` requests
- Add defined behavior for HTTP `Upgrade` requests
- deps: ee-first@1.1.1
* deps: qs@3.1.0
- Fix dropping parameters like `hasOwnProperty`
- Fix various parsing edge cases
- Parsed object now has `null` prototype
* deps: raw-body@~2.1.1
- Use `unpipe` module for unpiping requests
- deps: iconv-lite@0.4.10
* deps: type-is@~1.6.3
- deps: mime-types@~2.1.1
- perf: reduce try block size
- perf: remove bitwise operations
* perf: enable strict mode
* perf: remove argument reassignment
* perf: remove delete call
1.12.4 / 2015-05-10
===================
* deps: debug@~2.2.0
* deps: qs@2.4.2
- Fix allowing parameters like `constructor`
* deps: on-finished@~2.2.1
* deps: raw-body@~2.0.1
- Fix a false-positive when unpiping in Node.js 0.8
- deps: bytes@2.0.1
* deps: type-is@~1.6.2
- deps: mime-types@~2.0.11
1.12.3 / 2015-04-15
===================
* Slight efficiency improvement when not debugging
* deps: depd@~1.0.1
* deps: iconv-lite@0.4.8
- Add encoding alias UNICODE-1-1-UTF-7
* deps: raw-body@1.3.4
- Fix hanging callback if request aborts during read
- deps: iconv-lite@0.4.8
1.12.2 / 2015-03-16
===================
* deps: qs@2.4.1
- Fix error when parameter `hasOwnProperty` is present
1.12.1 / 2015-03-15
===================
* deps: debug@~2.1.3
- Fix high intensity foreground color for bold
- deps: ms@0.7.0
* deps: type-is@~1.6.1
- deps: mime-types@~2.0.10
1.12.0 / 2015-02-13
===================
* add `debug` messages
* accept a function for the `type` option
* use `content-type` to parse `Content-Type` headers
* deps: iconv-lite@0.4.7
- Gracefully support enumerables on `Object.prototype`
* deps: raw-body@1.3.3
- deps: iconv-lite@0.4.7
* deps: type-is@~1.6.0
- fix argument reassignment
- fix false-positives in `hasBody` `Transfer-Encoding` check
- support wildcard for both type and subtype (`*/*`)
- deps: mime-types@~2.0.9
1.11.0 / 2015-01-30
===================
* make internal `extended: true` depth limit infinity
* deps: type-is@~1.5.6
- deps: mime-types@~2.0.8
1.10.2 / 2015-01-20
===================
* deps: iconv-lite@0.4.6
- Fix rare aliases of single-byte encodings
* deps: raw-body@1.3.2
- deps: iconv-lite@0.4.6
1.10.1 / 2015-01-01
===================
* deps: on-finished@~2.2.0
* deps: type-is@~1.5.5
- deps: mime-types@~2.0.7
1.10.0 / 2014-12-02
===================
* make internal `extended: true` array limit dynamic
1.9.3 / 2014-11-21
==================
* deps: iconv-lite@0.4.5
- Fix Windows-31J and X-SJIS encoding support
* deps: qs@2.3.3
- Fix `arrayLimit` behavior
* deps: raw-body@1.3.1
- deps: iconv-lite@0.4.5
* deps: type-is@~1.5.3
- deps: mime-types@~2.0.3
1.9.2 / 2014-10-27
==================
* deps: qs@2.3.2
- Fix parsing of mixed objects and values
1.9.1 / 2014-10-22
==================
* deps: on-finished@~2.1.1
- Fix handling of pipelined requests
* deps: qs@2.3.0
- Fix parsing of mixed implicit and explicit arrays
* deps: type-is@~1.5.2
- deps: mime-types@~2.0.2
1.9.0 / 2014-09-24
==================
* include the charset in "unsupported charset" error message
* include the encoding in "unsupported content encoding" error message
* deps: depd@~1.0.0
1.8.4 / 2014-09-23
==================
* fix content encoding to be case-insensitive
1.8.3 / 2014-09-19
==================
* deps: qs@2.2.4
- Fix issue with object keys starting with numbers truncated
1.8.2 / 2014-09-15
==================
* deps: depd@0.4.5
1.8.1 / 2014-09-07
==================
* deps: media-typer@0.3.0
* deps: type-is@~1.5.1
1.8.0 / 2014-09-05
==================
* make empty-body-handling consistent between chunked requests
- empty `json` produces `{}`
- empty `raw` produces `new Buffer(0)`
- empty `text` produces `''`
- empty `urlencoded` produces `{}`
* deps: qs@2.2.3
- Fix issue where first empty value in array is discarded
* deps: type-is@~1.5.0
- fix `hasbody` to be true for `content-length: 0`
1.7.0 / 2014-09-01
==================
* add `parameterLimit` option to `urlencoded` parser
* change `urlencoded` extended array limit to 100
* respond with 413 when over `parameterLimit` in `urlencoded`
1.6.7 / 2014-08-29
==================
* deps: qs@2.2.2
- Remove unnecessary cloning
1.6.6 / 2014-08-27
==================
* deps: qs@2.2.0
- Array parsing fix
- Performance improvements
1.6.5 / 2014-08-16
==================
* deps: on-finished@2.1.0
1.6.4 / 2014-08-14
==================
* deps: qs@1.2.2
1.6.3 / 2014-08-10
==================
* deps: qs@1.2.1
1.6.2 / 2014-08-07
==================
* deps: qs@1.2.0
- Fix parsing array of objects
1.6.1 / 2014-08-06
==================
* deps: qs@1.1.0
- Accept urlencoded square brackets
- Accept empty values in implicit array notation
1.6.0 / 2014-08-05
==================
* deps: qs@1.0.2
- Complete rewrite
- Limits array length to 20
- Limits object depth to 5
- Limits parameters to 1,000
1.5.2 / 2014-07-27
==================
* deps: depd@0.4.4
- Work-around v8 generating empty stack traces
1.5.1 / 2014-07-26
==================
* deps: depd@0.4.3
- Fix exception when global `Error.stackTraceLimit` is too low
1.5.0 / 2014-07-20
==================
* deps: depd@0.4.2
- Add `TRACE_DEPRECATION` environment variable
- Remove non-standard grey color from color output
- Support `--no-deprecation` argument
- Support `--trace-deprecation` argument
* deps: iconv-lite@0.4.4
- Added encoding UTF-7
* deps: raw-body@1.3.0
- deps: iconv-lite@0.4.4
- Added encoding UTF-7
- Fix `Cannot switch to old mode now` error on Node.js 0.10+
* deps: type-is@~1.3.2
1.4.3 / 2014-06-19
==================
* deps: type-is@1.3.1
- fix global variable leak
1.4.2 / 2014-06-19
==================
* deps: type-is@1.3.0
- improve type parsing
1.4.1 / 2014-06-19
==================
* fix urlencoded extended deprecation message
1.4.0 / 2014-06-19
==================
* add `text` parser
* add `raw` parser
* check accepted charset in content-type (accepts utf-8)
* check accepted encoding in content-encoding (accepts identity)
* deprecate `bodyParser()` middleware; use `.json()` and `.urlencoded()` as needed
* deprecate `urlencoded()` without provided `extended` option
* lazy-load urlencoded parsers
* parsers split into files for reduced mem usage
* support gzip and deflate bodies
- set `inflate: false` to turn off
* deps: raw-body@1.2.2
- Support all encodings from `iconv-lite`
1.3.1 / 2014-06-11
==================
* deps: type-is@1.2.1
- Switch dependency from mime to mime-types@1.0.0
1.3.0 / 2014-05-31
==================
* add `extended` option to urlencoded parser
1.2.2 / 2014-05-27
==================
* deps: raw-body@1.1.6
- assert stream encoding on node.js 0.8
- assert stream encoding on node.js < 0.10.6
- deps: bytes@1
1.2.1 / 2014-05-26
==================
* invoke `next(err)` after request fully read
- prevents hung responses and socket hang ups
1.2.0 / 2014-05-11
==================
* add `verify` option
* deps: type-is@1.2.0
- support suffix matching
1.1.2 / 2014-05-11
==================
* improve json parser speed
1.1.1 / 2014-05-11
==================
* fix repeated limit parsing with every request
1.1.0 / 2014-05-10
==================
* add `type` option
* deps: pin for safety and consistency
1.0.2 / 2014-04-14
==================
* use `type-is` module
1.0.1 / 2014-03-20
==================
* lower default limits to 100kb

23
wasm_pthread_fast/web/node_modules/body-parser/LICENSE generated vendored Normal file
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(The MIT License)
Copyright (c) 2014 Jonathan Ong <me@jongleberry.com>
Copyright (c) 2014-2015 Douglas Christopher Wilson <doug@somethingdoug.com>
Permission is hereby granted, free of charge, to any person obtaining
a copy of this software and associated documentation files (the
'Software'), to deal in the Software without restriction, including
without limitation the rights to use, copy, modify, merge, publish,
distribute, sublicense, and/or sell copies of the Software, and to
permit persons to whom the Software is furnished to do so, subject to
the following conditions:
The above copyright notice and this permission notice shall be
included in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND,
EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

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@@ -0,0 +1,491 @@
# body-parser
[![NPM Version][npm-version-image]][npm-url]
[![NPM Downloads][npm-downloads-image]][npm-url]
[![Build Status][ci-image]][ci-url]
[![Test Coverage][coveralls-image]][coveralls-url]
[![OpenSSF Scorecard Badge][ossf-scorecard-badge]][ossf-scorecard-visualizer]
Node.js body parsing middleware.
Parse incoming request bodies in a middleware before your handlers, available
under the `req.body` property.
**Note** As `req.body`'s shape is based on user-controlled input, all
properties and values in this object are untrusted and should be validated
before trusting. For example, `req.body.foo.toString()` may fail in multiple
ways, for example the `foo` property may not be there or may not be a string,
and `toString` may not be a function and instead a string or other user input.
[Learn about the anatomy of an HTTP transaction in Node.js](https://nodejs.org/en/docs/guides/anatomy-of-an-http-transaction/).
_This does not handle multipart bodies_, due to their complex and typically
large nature. For multipart bodies, you may be interested in the following
modules:
* [busboy](https://www.npmjs.org/package/busboy#readme) and
[connect-busboy](https://www.npmjs.org/package/connect-busboy#readme)
* [multiparty](https://www.npmjs.org/package/multiparty#readme) and
[connect-multiparty](https://www.npmjs.org/package/connect-multiparty#readme)
* [formidable](https://www.npmjs.org/package/formidable#readme)
* [multer](https://www.npmjs.org/package/multer#readme)
This module provides the following parsers:
* [JSON body parser](#bodyparserjsonoptions)
* [Raw body parser](#bodyparserrawoptions)
* [Text body parser](#bodyparsertextoptions)
* [URL-encoded form body parser](#bodyparserurlencodedoptions)
Other body parsers you might be interested in:
- [body](https://www.npmjs.org/package/body#readme)
- [co-body](https://www.npmjs.org/package/co-body#readme)
## Installation
```sh
$ npm install body-parser
```
## API
```js
const bodyParser = require('body-parser')
```
The `bodyParser` object exposes various factories to create middlewares. All
middlewares will populate the `req.body` property with the parsed body when
the `Content-Type` request header matches the `type` option.
The various errors returned by this module are described in the
[errors section](#errors).
### bodyParser.json([options])
Returns middleware that only parses `json` and only looks at requests where
the `Content-Type` header matches the `type` option. This parser accepts any
Unicode encoding of the body and supports automatic inflation of `gzip`,
`br` (brotli) and `deflate` encodings.
A new `body` object containing the parsed data is populated on the `request`
object after the middleware (i.e. `req.body`).
#### Options
The `json` function takes an optional `options` object that may contain any of
the following keys:
##### inflate
When set to `true`, then deflated (compressed) bodies will be inflated; when
`false`, deflated bodies are rejected. Defaults to `true`.
##### limit
Controls the maximum request body size. If this is a number, then the value
specifies the number of bytes; if it is a string, the value is passed to the
[bytes](https://www.npmjs.com/package/bytes) library for parsing. Defaults
to `'100kb'`.
##### reviver
The `reviver` option is passed directly to `JSON.parse` as the second
argument. You can find more information on this argument
[in the MDN documentation about JSON.parse](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/JSON/parse#Example.3A_Using_the_reviver_parameter).
##### strict
When set to `true`, will only accept arrays and objects; when `false` will
accept anything `JSON.parse` accepts. Defaults to `true`.
##### type
The `type` option is used to determine what media type the middleware will
parse. This option can be a string, array of strings, or a function. If not a
function, `type` option is passed directly to the
[type-is](https://www.npmjs.org/package/type-is#readme) library and this can
be an extension name (like `json`), a mime type (like `application/json`), or
a mime type with a wildcard (like `*/*` or `*/json`). If a function, the `type`
option is called as `fn(req)` and the request is parsed if it returns a truthy
value. Defaults to `application/json`.
##### verify
The `verify` option, if supplied, is called as `verify(req, res, buf, encoding)`,
where `buf` is a `Buffer` of the raw request body and `encoding` is the
encoding of the request. The parsing can be aborted by throwing an error.
### bodyParser.raw([options])
Returns middleware that parses all bodies as a `Buffer` and only looks at
requests where the `Content-Type` header matches the `type` option. This
parser supports automatic inflation of `gzip`, `br` (brotli) and `deflate`
encodings.
A new `body` object containing the parsed data is populated on the `request`
object after the middleware (i.e. `req.body`). This will be a `Buffer` object
of the body.
#### Options
The `raw` function takes an optional `options` object that may contain any of
the following keys:
##### inflate
When set to `true`, then deflated (compressed) bodies will be inflated; when
`false`, deflated bodies are rejected. Defaults to `true`.
##### limit
Controls the maximum request body size. If this is a number, then the value
specifies the number of bytes; if it is a string, the value is passed to the
[bytes](https://www.npmjs.com/package/bytes) library for parsing. Defaults
to `'100kb'`.
##### type
The `type` option is used to determine what media type the middleware will
parse. This option can be a string, array of strings, or a function.
If not a function, `type` option is passed directly to the
[type-is](https://www.npmjs.org/package/type-is#readme) library and this
can be an extension name (like `bin`), a mime type (like
`application/octet-stream`), or a mime type with a wildcard (like `*/*` or
`application/*`). If a function, the `type` option is called as `fn(req)`
and the request is parsed if it returns a truthy value. Defaults to
`application/octet-stream`.
##### verify
The `verify` option, if supplied, is called as `verify(req, res, buf, encoding)`,
where `buf` is a `Buffer` of the raw request body and `encoding` is the
encoding of the request. The parsing can be aborted by throwing an error.
### bodyParser.text([options])
Returns middleware that parses all bodies as a string and only looks at
requests where the `Content-Type` header matches the `type` option. This
parser supports automatic inflation of `gzip`, `br` (brotli) and `deflate`
encodings.
A new `body` string containing the parsed data is populated on the `request`
object after the middleware (i.e. `req.body`). This will be a string of the
body.
#### Options
The `text` function takes an optional `options` object that may contain any of
the following keys:
##### defaultCharset
Specify the default character set for the text content if the charset is not
specified in the `Content-Type` header of the request. Defaults to `utf-8`.
##### inflate
When set to `true`, then deflated (compressed) bodies will be inflated; when
`false`, deflated bodies are rejected. Defaults to `true`.
##### limit
Controls the maximum request body size. If this is a number, then the value
specifies the number of bytes; if it is a string, the value is passed to the
[bytes](https://www.npmjs.com/package/bytes) library for parsing. Defaults
to `'100kb'`.
##### type
The `type` option is used to determine what media type the middleware will
parse. This option can be a string, array of strings, or a function. If not
a function, `type` option is passed directly to the
[type-is](https://www.npmjs.org/package/type-is#readme) library and this can
be an extension name (like `txt`), a mime type (like `text/plain`), or a mime
type with a wildcard (like `*/*` or `text/*`). If a function, the `type`
option is called as `fn(req)` and the request is parsed if it returns a
truthy value. Defaults to `text/plain`.
##### verify
The `verify` option, if supplied, is called as `verify(req, res, buf, encoding)`,
where `buf` is a `Buffer` of the raw request body and `encoding` is the
encoding of the request. The parsing can be aborted by throwing an error.
### bodyParser.urlencoded([options])
Returns middleware that only parses `urlencoded` bodies and only looks at
requests where the `Content-Type` header matches the `type` option. This
parser accepts only UTF-8 encoding of the body and supports automatic
inflation of `gzip`, `br` (brotli) and `deflate` encodings.
A new `body` object containing the parsed data is populated on the `request`
object after the middleware (i.e. `req.body`). This object will contain
key-value pairs, where the value can be a string or array (when `extended` is
`false`), or any type (when `extended` is `true`).
#### Options
The `urlencoded` function takes an optional `options` object that may contain
any of the following keys:
##### extended
The "extended" syntax allows for rich objects and arrays to be encoded into the
URL-encoded format, allowing for a JSON-like experience with URL-encoded. For
more information, please [see the qs
library](https://www.npmjs.org/package/qs#readme).
Defaults to `false`.
##### inflate
When set to `true`, then deflated (compressed) bodies will be inflated; when
`false`, deflated bodies are rejected. Defaults to `true`.
##### limit
Controls the maximum request body size. If this is a number, then the value
specifies the number of bytes; if it is a string, the value is passed to the
[bytes](https://www.npmjs.com/package/bytes) library for parsing. Defaults
to `'100kb'`.
##### parameterLimit
The `parameterLimit` option controls the maximum number of parameters that
are allowed in the URL-encoded data. If a request contains more parameters
than this value, a 413 will be returned to the client. Defaults to `1000`.
##### type
The `type` option is used to determine what media type the middleware will
parse. This option can be a string, array of strings, or a function. If not
a function, `type` option is passed directly to the
[type-is](https://www.npmjs.org/package/type-is#readme) library and this can
be an extension name (like `urlencoded`), a mime type (like
`application/x-www-form-urlencoded`), or a mime type with a wildcard (like
`*/x-www-form-urlencoded`). If a function, the `type` option is called as
`fn(req)` and the request is parsed if it returns a truthy value. Defaults
to `application/x-www-form-urlencoded`.
##### verify
The `verify` option, if supplied, is called as `verify(req, res, buf, encoding)`,
where `buf` is a `Buffer` of the raw request body and `encoding` is the
encoding of the request. The parsing can be aborted by throwing an error.
##### defaultCharset
The default charset to parse as, if not specified in content-type. Must be
either `utf-8` or `iso-8859-1`. Defaults to `utf-8`.
##### charsetSentinel
Whether to let the value of the `utf8` parameter take precedence as the charset
selector. It requires the form to contain a parameter named `utf8` with a value
of `✓`. Defaults to `false`.
##### interpretNumericEntities
Whether to decode numeric entities such as `&#9786;` when parsing an iso-8859-1
form. Defaults to `false`.
#### depth
The `depth` option is used to configure the maximum depth of the `qs` library when `extended` is `true`. This allows you to limit the amount of keys that are parsed and can be useful to prevent certain types of abuse. Defaults to `32`. It is recommended to keep this value as low as possible.
## Errors
The middlewares provided by this module create errors using the
[`http-errors` module](https://www.npmjs.com/package/http-errors). The errors
will typically have a `status`/`statusCode` property that contains the suggested
HTTP response code, an `expose` property to determine if the `message` property
should be displayed to the client, a `type` property to determine the type of
error without matching against the `message`, and a `body` property containing
the read body, if available.
The following are the common errors created, though any error can come through
for various reasons.
### content encoding unsupported
This error will occur when the request had a `Content-Encoding` header that
contained an encoding but the "inflation" option was set to `false`. The
`status` property is set to `415`, the `type` property is set to
`'encoding.unsupported'`, and the `charset` property will be set to the
encoding that is unsupported.
### entity parse failed
This error will occur when the request contained an entity that could not be
parsed by the middleware. The `status` property is set to `400`, the `type`
property is set to `'entity.parse.failed'`, and the `body` property is set to
the entity value that failed parsing.
### entity verify failed
This error will occur when the request contained an entity that could not be
failed verification by the defined `verify` option. The `status` property is
set to `403`, the `type` property is set to `'entity.verify.failed'`, and the
`body` property is set to the entity value that failed verification.
### request aborted
This error will occur when the request is aborted by the client before reading
the body has finished. The `received` property will be set to the number of
bytes received before the request was aborted and the `expected` property is
set to the number of expected bytes. The `status` property is set to `400`
and `type` property is set to `'request.aborted'`.
### request entity too large
This error will occur when the request body's size is larger than the "limit"
option. The `limit` property will be set to the byte limit and the `length`
property will be set to the request body's length. The `status` property is
set to `413` and the `type` property is set to `'entity.too.large'`.
### request size did not match content length
This error will occur when the request's length did not match the length from
the `Content-Length` header. This typically occurs when the request is malformed,
typically when the `Content-Length` header was calculated based on characters
instead of bytes. The `status` property is set to `400` and the `type` property
is set to `'request.size.invalid'`.
### stream encoding should not be set
This error will occur when something called the `req.setEncoding` method prior
to this middleware. This module operates directly on bytes only and you cannot
call `req.setEncoding` when using this module. The `status` property is set to
`500` and the `type` property is set to `'stream.encoding.set'`.
### stream is not readable
This error will occur when the request is no longer readable when this middleware
attempts to read it. This typically means something other than a middleware from
this module read the request body already and the middleware was also configured to
read the same request. The `status` property is set to `500` and the `type`
property is set to `'stream.not.readable'`.
### too many parameters
This error will occur when the content of the request exceeds the configured
`parameterLimit` for the `urlencoded` parser. The `status` property is set to
`413` and the `type` property is set to `'parameters.too.many'`.
### unsupported charset "BOGUS"
This error will occur when the request had a charset parameter in the
`Content-Type` header, but the `iconv-lite` module does not support it OR the
parser does not support it. The charset is contained in the message as well
as in the `charset` property. The `status` property is set to `415`, the
`type` property is set to `'charset.unsupported'`, and the `charset` property
is set to the charset that is unsupported.
### unsupported content encoding "bogus"
This error will occur when the request had a `Content-Encoding` header that
contained an unsupported encoding. The encoding is contained in the message
as well as in the `encoding` property. The `status` property is set to `415`,
the `type` property is set to `'encoding.unsupported'`, and the `encoding`
property is set to the encoding that is unsupported.
### The input exceeded the depth
This error occurs when using `bodyParser.urlencoded` with the `extended` property set to `true` and the input exceeds the configured `depth` option. The `status` property is set to `400`. It is recommended to review the `depth` option and evaluate if it requires a higher value. When the `depth` option is set to `32` (default value), the error will not be thrown.
## Examples
### Express/Connect top-level generic
This example demonstrates adding a generic JSON and URL-encoded parser as a
top-level middleware, which will parse the bodies of all incoming requests.
This is the simplest setup.
```js
const express = require('express')
const bodyParser = require('body-parser')
const app = express()
// parse application/x-www-form-urlencoded
app.use(bodyParser.urlencoded())
// parse application/json
app.use(bodyParser.json())
app.use(function (req, res) {
res.setHeader('Content-Type', 'text/plain')
res.write('you posted:\n')
res.end(String(JSON.stringify(req.body, null, 2)))
})
```
### Express route-specific
This example demonstrates adding body parsers specifically to the routes that
need them. In general, this is the most recommended way to use body-parser with
Express.
```js
const express = require('express')
const bodyParser = require('body-parser')
const app = express()
// create application/json parser
const jsonParser = bodyParser.json()
// create application/x-www-form-urlencoded parser
const urlencodedParser = bodyParser.urlencoded()
// POST /login gets urlencoded bodies
app.post('/login', urlencodedParser, function (req, res) {
if (!req.body || !req.body.username) res.sendStatus(400)
res.send('welcome, ' + req.body.username)
})
// POST /api/users gets JSON bodies
app.post('/api/users', jsonParser, function (req, res) {
if (!req.body) res.sendStatus(400)
// create user in req.body
})
```
### Change accepted type for parsers
All the parsers accept a `type` option which allows you to change the
`Content-Type` that the middleware will parse.
```js
const express = require('express')
const bodyParser = require('body-parser')
const app = express()
// parse various different custom JSON types as JSON
app.use(bodyParser.json({ type: 'application/*+json' }))
// parse some custom thing into a Buffer
app.use(bodyParser.raw({ type: 'application/vnd.custom-type' }))
// parse an HTML body into a string
app.use(bodyParser.text({ type: 'text/html' }))
```
## License
[MIT](LICENSE)
[ci-image]: https://badgen.net/github/checks/expressjs/body-parser/master?label=ci
[ci-url]: https://github.com/expressjs/body-parser/actions/workflows/ci.yml
[coveralls-image]: https://badgen.net/coveralls/c/github/expressjs/body-parser/master
[coveralls-url]: https://coveralls.io/r/expressjs/body-parser?branch=master
[node-version-image]: https://badgen.net/npm/node/body-parser
[node-version-url]: https://nodejs.org/en/download
[npm-downloads-image]: https://badgen.net/npm/dm/body-parser
[npm-url]: https://npmjs.org/package/body-parser
[npm-version-image]: https://badgen.net/npm/v/body-parser
[ossf-scorecard-badge]: https://api.scorecard.dev/projects/github.com/expressjs/body-parser/badge
[ossf-scorecard-visualizer]: https://ossf.github.io/scorecard-visualizer/#/projects/github.com/expressjs/body-parser

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/*!
* body-parser
* Copyright(c) 2014-2015 Douglas Christopher Wilson
* MIT Licensed
*/
'use strict'
/**
* @typedef Parsers
* @type {function}
* @property {function} json
* @property {function} raw
* @property {function} text
* @property {function} urlencoded
*/
/**
* Module exports.
* @type {Parsers}
*/
exports = module.exports = bodyParser
/**
* JSON parser.
* @public
*/
Object.defineProperty(exports, 'json', {
configurable: true,
enumerable: true,
get: () => require('./lib/types/json')
})
/**
* Raw parser.
* @public
*/
Object.defineProperty(exports, 'raw', {
configurable: true,
enumerable: true,
get: () => require('./lib/types/raw')
})
/**
* Text parser.
* @public
*/
Object.defineProperty(exports, 'text', {
configurable: true,
enumerable: true,
get: () => require('./lib/types/text')
})
/**
* URL-encoded parser.
* @public
*/
Object.defineProperty(exports, 'urlencoded', {
configurable: true,
enumerable: true,
get: () => require('./lib/types/urlencoded')
})
/**
* Create a middleware to parse json and urlencoded bodies.
*
* @param {object} [options]
* @return {function}
* @deprecated
* @public
*/
function bodyParser () {
throw new Error('The bodyParser() generic has been split into individual middleware to use instead.')
}

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/*!
* body-parser
* Copyright(c) 2014-2015 Douglas Christopher Wilson
* MIT Licensed
*/
'use strict'
/**
* Module dependencies.
* @private
*/
var createError = require('http-errors')
var getBody = require('raw-body')
var iconv = require('iconv-lite')
var onFinished = require('on-finished')
var zlib = require('node:zlib')
/**
* Module exports.
*/
module.exports = read
/**
* Read a request into a buffer and parse.
*
* @param {object} req
* @param {object} res
* @param {function} next
* @param {function} parse
* @param {function} debug
* @param {object} options
* @private
*/
function read (req, res, next, parse, debug, options) {
var length
var opts = options
var stream
// read options
var encoding = opts.encoding !== null
? opts.encoding
: null
var verify = opts.verify
try {
// get the content stream
stream = contentstream(req, debug, opts.inflate)
length = stream.length
stream.length = undefined
} catch (err) {
return next(err)
}
// set raw-body options
opts.length = length
opts.encoding = verify
? null
: encoding
// assert charset is supported
if (opts.encoding === null && encoding !== null && !iconv.encodingExists(encoding)) {
return next(createError(415, 'unsupported charset "' + encoding.toUpperCase() + '"', {
charset: encoding.toLowerCase(),
type: 'charset.unsupported'
}))
}
// read body
debug('read body')
getBody(stream, opts, function (error, body) {
if (error) {
var _error
if (error.type === 'encoding.unsupported') {
// echo back charset
_error = createError(415, 'unsupported charset "' + encoding.toUpperCase() + '"', {
charset: encoding.toLowerCase(),
type: 'charset.unsupported'
})
} else {
// set status code on error
_error = createError(400, error)
}
// unpipe from stream and destroy
if (stream !== req) {
req.unpipe()
stream.destroy()
}
// read off entire request
dump(req, function onfinished () {
next(createError(400, _error))
})
return
}
// verify
if (verify) {
try {
debug('verify body')
verify(req, res, body, encoding)
} catch (err) {
next(createError(403, err, {
body: body,
type: err.type || 'entity.verify.failed'
}))
return
}
}
// parse
var str = body
try {
debug('parse body')
str = typeof body !== 'string' && encoding !== null
? iconv.decode(body, encoding)
: body
req.body = parse(str, encoding)
} catch (err) {
next(createError(400, err, {
body: str,
type: err.type || 'entity.parse.failed'
}))
return
}
next()
})
}
/**
* Get the content stream of the request.
*
* @param {object} req
* @param {function} debug
* @param {boolean} [inflate=true]
* @return {object}
* @api private
*/
function contentstream (req, debug, inflate) {
var encoding = (req.headers['content-encoding'] || 'identity').toLowerCase()
var length = req.headers['content-length']
debug('content-encoding "%s"', encoding)
if (inflate === false && encoding !== 'identity') {
throw createError(415, 'content encoding unsupported', {
encoding: encoding,
type: 'encoding.unsupported'
})
}
if (encoding === 'identity') {
req.length = length
return req
}
var stream = createDecompressionStream(encoding, debug)
req.pipe(stream)
return stream
}
/**
* Create a decompression stream for the given encoding.
* @param {string} encoding
* @param {function} debug
* @return {object}
* @api private
*/
function createDecompressionStream (encoding, debug) {
switch (encoding) {
case 'deflate':
debug('inflate body')
return zlib.createInflate()
case 'gzip':
debug('gunzip body')
return zlib.createGunzip()
case 'br':
debug('brotli decompress body')
return zlib.createBrotliDecompress()
default:
throw createError(415, 'unsupported content encoding "' + encoding + '"', {
encoding: encoding,
type: 'encoding.unsupported'
})
}
}
/**
* Dump the contents of a request.
*
* @param {object} req
* @param {function} callback
* @api private
*/
function dump (req, callback) {
if (onFinished.isFinished(req)) {
callback(null)
} else {
onFinished(req, callback)
req.resume()
}
}

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/*!
* body-parser
* Copyright(c) 2014 Jonathan Ong
* Copyright(c) 2014-2015 Douglas Christopher Wilson
* MIT Licensed
*/
'use strict'
/**
* Module dependencies.
* @private
*/
var createError = require('http-errors')
var debug = require('debug')('body-parser:json')
var isFinished = require('on-finished').isFinished
var read = require('../read')
var typeis = require('type-is')
var { getCharset, normalizeOptions } = require('../utils')
/**
* Module exports.
*/
module.exports = json
/**
* RegExp to match the first non-space in a string.
*
* Allowed whitespace is defined in RFC 7159:
*
* ws = *(
* %x20 / ; Space
* %x09 / ; Horizontal tab
* %x0A / ; Line feed or New line
* %x0D ) ; Carriage return
*/
var FIRST_CHAR_REGEXP = /^[\x20\x09\x0a\x0d]*([^\x20\x09\x0a\x0d])/ // eslint-disable-line no-control-regex
var JSON_SYNTAX_CHAR = '#'
var JSON_SYNTAX_REGEXP = /#+/g
/**
* Create a middleware to parse JSON bodies.
*
* @param {object} [options]
* @return {function}
* @public
*/
function json (options) {
var { inflate, limit, verify, shouldParse } = normalizeOptions(options, 'application/json')
var reviver = options?.reviver
var strict = options?.strict !== false
function parse (body) {
if (body.length === 0) {
// special-case empty json body, as it's a common client-side mistake
// TODO: maybe make this configurable or part of "strict" option
return {}
}
if (strict) {
var first = firstchar(body)
if (first !== '{' && first !== '[') {
debug('strict violation')
throw createStrictSyntaxError(body, first)
}
}
try {
debug('parse json')
return JSON.parse(body, reviver)
} catch (e) {
throw normalizeJsonSyntaxError(e, {
message: e.message,
stack: e.stack
})
}
}
return function jsonParser (req, res, next) {
if (isFinished(req)) {
debug('body already parsed')
next()
return
}
if (!('body' in req)) {
req.body = undefined
}
// skip requests without bodies
if (!typeis.hasBody(req)) {
debug('skip empty body')
next()
return
}
debug('content-type %j', req.headers['content-type'])
// determine if request should be parsed
if (!shouldParse(req)) {
debug('skip parsing')
next()
return
}
// assert charset per RFC 7159 sec 8.1
var charset = getCharset(req) || 'utf-8'
if (charset.slice(0, 4) !== 'utf-') {
debug('invalid charset')
next(createError(415, 'unsupported charset "' + charset.toUpperCase() + '"', {
charset: charset,
type: 'charset.unsupported'
}))
return
}
// read
read(req, res, next, parse, debug, {
encoding: charset,
inflate,
limit,
verify
})
}
}
/**
* Create strict violation syntax error matching native error.
*
* @param {string} str
* @param {string} char
* @return {Error}
* @private
*/
function createStrictSyntaxError (str, char) {
var index = str.indexOf(char)
var partial = ''
if (index !== -1) {
partial = str.substring(0, index) + JSON_SYNTAX_CHAR
for (var i = index + 1; i < str.length; i++) {
partial += JSON_SYNTAX_CHAR
}
}
try {
JSON.parse(partial); /* istanbul ignore next */ throw new SyntaxError('strict violation')
} catch (e) {
return normalizeJsonSyntaxError(e, {
message: e.message.replace(JSON_SYNTAX_REGEXP, function (placeholder) {
return str.substring(index, index + placeholder.length)
}),
stack: e.stack
})
}
}
/**
* Get the first non-whitespace character in a string.
*
* @param {string} str
* @return {function}
* @private
*/
function firstchar (str) {
var match = FIRST_CHAR_REGEXP.exec(str)
return match
? match[1]
: undefined
}
/**
* Normalize a SyntaxError for JSON.parse.
*
* @param {SyntaxError} error
* @param {object} obj
* @return {SyntaxError}
*/
function normalizeJsonSyntaxError (error, obj) {
var keys = Object.getOwnPropertyNames(error)
for (var i = 0; i < keys.length; i++) {
var key = keys[i]
if (key !== 'stack' && key !== 'message') {
delete error[key]
}
}
// replace stack before message for Node.js 0.10 and below
error.stack = obj.stack.replace(error.message, obj.message)
error.message = obj.message
return error
}

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/*!
* body-parser
* Copyright(c) 2014-2015 Douglas Christopher Wilson
* MIT Licensed
*/
'use strict'
/**
* Module dependencies.
*/
var debug = require('debug')('body-parser:raw')
var isFinished = require('on-finished').isFinished
var read = require('../read')
var typeis = require('type-is')
var { normalizeOptions } = require('../utils')
/**
* Module exports.
*/
module.exports = raw
/**
* Create a middleware to parse raw bodies.
*
* @param {object} [options]
* @return {function}
* @api public
*/
function raw (options) {
var { inflate, limit, verify, shouldParse } = normalizeOptions(options, 'application/octet-stream')
function parse (buf) {
return buf
}
return function rawParser (req, res, next) {
if (isFinished(req)) {
debug('body already parsed')
next()
return
}
if (!('body' in req)) {
req.body = undefined
}
// skip requests without bodies
if (!typeis.hasBody(req)) {
debug('skip empty body')
next()
return
}
debug('content-type %j', req.headers['content-type'])
// determine if request should be parsed
if (!shouldParse(req)) {
debug('skip parsing')
next()
return
}
// read
read(req, res, next, parse, debug, {
encoding: null,
inflate,
limit,
verify
})
}
}

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@@ -0,0 +1,80 @@
/*!
* body-parser
* Copyright(c) 2014-2015 Douglas Christopher Wilson
* MIT Licensed
*/
'use strict'
/**
* Module dependencies.
*/
var debug = require('debug')('body-parser:text')
var isFinished = require('on-finished').isFinished
var read = require('../read')
var typeis = require('type-is')
var { getCharset, normalizeOptions } = require('../utils')
/**
* Module exports.
*/
module.exports = text
/**
* Create a middleware to parse text bodies.
*
* @param {object} [options]
* @return {function}
* @api public
*/
function text (options) {
var { inflate, limit, verify, shouldParse } = normalizeOptions(options, 'text/plain')
var defaultCharset = options?.defaultCharset || 'utf-8'
function parse (buf) {
return buf
}
return function textParser (req, res, next) {
if (isFinished(req)) {
debug('body already parsed')
next()
return
}
if (!('body' in req)) {
req.body = undefined
}
// skip requests without bodies
if (!typeis.hasBody(req)) {
debug('skip empty body')
next()
return
}
debug('content-type %j', req.headers['content-type'])
// determine if request should be parsed
if (!shouldParse(req)) {
debug('skip parsing')
next()
return
}
// get charset
var charset = getCharset(req) || defaultCharset
// read
read(req, res, next, parse, debug, {
encoding: charset,
inflate,
limit,
verify
})
}
}

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@@ -0,0 +1,177 @@
/*!
* body-parser
* Copyright(c) 2014 Jonathan Ong
* Copyright(c) 2014-2015 Douglas Christopher Wilson
* MIT Licensed
*/
'use strict'
/**
* Module dependencies.
* @private
*/
var createError = require('http-errors')
var debug = require('debug')('body-parser:urlencoded')
var isFinished = require('on-finished').isFinished
var read = require('../read')
var typeis = require('type-is')
var qs = require('qs')
var { getCharset, normalizeOptions } = require('../utils')
/**
* Module exports.
*/
module.exports = urlencoded
/**
* Create a middleware to parse urlencoded bodies.
*
* @param {object} [options]
* @return {function}
* @public
*/
function urlencoded (options) {
var { inflate, limit, verify, shouldParse } = normalizeOptions(options, 'application/x-www-form-urlencoded')
var defaultCharset = options?.defaultCharset || 'utf-8'
if (defaultCharset !== 'utf-8' && defaultCharset !== 'iso-8859-1') {
throw new TypeError('option defaultCharset must be either utf-8 or iso-8859-1')
}
// create the appropriate query parser
var queryparse = createQueryParser(options)
function parse (body, encoding) {
return body.length
? queryparse(body, encoding)
: {}
}
return function urlencodedParser (req, res, next) {
if (isFinished(req)) {
debug('body already parsed')
next()
return
}
if (!('body' in req)) {
req.body = undefined
}
// skip requests without bodies
if (!typeis.hasBody(req)) {
debug('skip empty body')
next()
return
}
debug('content-type %j', req.headers['content-type'])
// determine if request should be parsed
if (!shouldParse(req)) {
debug('skip parsing')
next()
return
}
// assert charset
var charset = getCharset(req) || defaultCharset
if (charset !== 'utf-8' && charset !== 'iso-8859-1') {
debug('invalid charset')
next(createError(415, 'unsupported charset "' + charset.toUpperCase() + '"', {
charset: charset,
type: 'charset.unsupported'
}))
return
}
// read
read(req, res, next, parse, debug, {
encoding: charset,
inflate,
limit,
verify
})
}
}
/**
* Get the extended query parser.
*
* @param {object} options
*/
function createQueryParser (options) {
var extended = Boolean(options?.extended)
var parameterLimit = options?.parameterLimit !== undefined
? options?.parameterLimit
: 1000
var charsetSentinel = options?.charsetSentinel
var interpretNumericEntities = options?.interpretNumericEntities
var depth = extended ? (options?.depth !== undefined ? options?.depth : 32) : 0
if (isNaN(parameterLimit) || parameterLimit < 1) {
throw new TypeError('option parameterLimit must be a positive number')
}
if (isNaN(depth) || depth < 0) {
throw new TypeError('option depth must be a zero or a positive number')
}
if (isFinite(parameterLimit)) {
parameterLimit = parameterLimit | 0
}
return function queryparse (body, encoding) {
var paramCount = parameterCount(body, parameterLimit)
if (paramCount === undefined) {
debug('too many parameters')
throw createError(413, 'too many parameters', {
type: 'parameters.too.many'
})
}
var arrayLimit = extended ? Math.max(100, paramCount) : 0
debug('parse ' + (extended ? 'extended ' : '') + 'urlencoding')
try {
return qs.parse(body, {
allowPrototypes: true,
arrayLimit: arrayLimit,
depth: depth,
charsetSentinel: charsetSentinel,
interpretNumericEntities: interpretNumericEntities,
charset: encoding,
parameterLimit: parameterLimit,
strictDepth: true
})
} catch (err) {
if (err instanceof RangeError) {
throw createError(400, 'The input exceeded the depth', {
type: 'querystring.parse.rangeError'
})
} else {
throw err
}
}
}
}
/**
* Count the number of parameters, stopping once limit reached
*
* @param {string} body
* @param {number} limit
* @api private
*/
function parameterCount (body, limit) {
var len = body.split('&').length
return len > limit ? undefined : len - 1
}

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'use strict'
/**
* Module dependencies.
*/
var bytes = require('bytes')
var contentType = require('content-type')
var typeis = require('type-is')
/**
* Module exports.
*/
module.exports = {
getCharset,
normalizeOptions
}
/**
* Get the charset of a request.
*
* @param {object} req
* @api private
*/
function getCharset (req) {
try {
return (contentType.parse(req).parameters.charset || '').toLowerCase()
} catch {
return undefined
}
}
/**
* Get the simple type checker.
*
* @param {string | string[]} type
* @return {function}
*/
function typeChecker (type) {
return function checkType (req) {
return Boolean(typeis(req, type))
}
}
/**
* Normalizes the common options for all parsers.
*
* @param {object} options options to normalize
* @param {string | string[] | function} defaultType default content type(s) or a function to determine it
* @returns {object}
*/
function normalizeOptions (options, defaultType) {
if (!defaultType) {
// Parsers must define a default content type
throw new TypeError('defaultType must be provided')
}
var inflate = options?.inflate !== false
var limit = typeof options?.limit !== 'number'
? bytes.parse(options?.limit || '100kb')
: options?.limit
var type = options?.type || defaultType
var verify = options?.verify || false
if (verify !== false && typeof verify !== 'function') {
throw new TypeError('option verify must be function')
}
// create the appropriate type checking function
var shouldParse = typeof type !== 'function'
? typeChecker(type)
: type
return {
inflate,
limit,
verify,
shouldParse
}
}

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{
"name": "body-parser",
"description": "Node.js body parsing middleware",
"version": "2.2.0",
"contributors": [
"Douglas Christopher Wilson <doug@somethingdoug.com>",
"Jonathan Ong <me@jongleberry.com> (http://jongleberry.com)"
],
"license": "MIT",
"repository": "expressjs/body-parser",
"dependencies": {
"bytes": "^3.1.2",
"content-type": "^1.0.5",
"debug": "^4.4.0",
"http-errors": "^2.0.0",
"iconv-lite": "^0.6.3",
"on-finished": "^2.4.1",
"qs": "^6.14.0",
"raw-body": "^3.0.0",
"type-is": "^2.0.0"
},
"devDependencies": {
"eslint": "8.34.0",
"eslint-config-standard": "14.1.1",
"eslint-plugin-import": "2.27.5",
"eslint-plugin-markdown": "3.0.0",
"eslint-plugin-node": "11.1.0",
"eslint-plugin-promise": "6.1.1",
"eslint-plugin-standard": "4.1.0",
"mocha": "^11.1.0",
"nyc": "^17.1.0",
"supertest": "^7.0.0"
},
"files": [
"lib/",
"LICENSE",
"HISTORY.md",
"index.js"
],
"engines": {
"node": ">=18"
},
"scripts": {
"lint": "eslint .",
"test": "mocha --reporter spec --check-leaks test/",
"test-ci": "nyc --reporter=lcovonly --reporter=text npm test",
"test-cov": "nyc --reporter=html --reporter=text npm test"
}
}

97
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3.1.2 / 2022-01-27
==================
* Fix return value for un-parsable strings
3.1.1 / 2021-11-15
==================
* Fix "thousandsSeparator" incorrecting formatting fractional part
3.1.0 / 2019-01-22
==================
* Add petabyte (`pb`) support
3.0.0 / 2017-08-31
==================
* Change "kB" to "KB" in format output
* Remove support for Node.js 0.6
* Remove support for ComponentJS
2.5.0 / 2017-03-24
==================
* Add option "unit"
2.4.0 / 2016-06-01
==================
* Add option "unitSeparator"
2.3.0 / 2016-02-15
==================
* Drop partial bytes on all parsed units
* Fix non-finite numbers to `.format` to return `null`
* Fix parsing byte string that looks like hex
* perf: hoist regular expressions
2.2.0 / 2015-11-13
==================
* add option "decimalPlaces"
* add option "fixedDecimals"
2.1.0 / 2015-05-21
==================
* add `.format` export
* add `.parse` export
2.0.2 / 2015-05-20
==================
* remove map recreation
* remove unnecessary object construction
2.0.1 / 2015-05-07
==================
* fix browserify require
* remove node.extend dependency
2.0.0 / 2015-04-12
==================
* add option "case"
* add option "thousandsSeparator"
* return "null" on invalid parse input
* support proper round-trip: bytes(bytes(num)) === num
* units no longer case sensitive when parsing
1.0.0 / 2014-05-05
==================
* add negative support. fixes #6
0.3.0 / 2014-03-19
==================
* added terabyte support
0.2.1 / 2013-04-01
==================
* add .component
0.2.0 / 2012-10-28
==================
* bytes(200).should.eql('200b')
0.1.0 / 2012-07-04
==================
* add bytes to string conversion [yields]

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wasm_pthread_fast/web/node_modules/bytes/LICENSE generated vendored Normal file
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(The MIT License)
Copyright (c) 2012-2014 TJ Holowaychuk <tj@vision-media.ca>
Copyright (c) 2015 Jed Watson <jed.watson@me.com>
Permission is hereby granted, free of charge, to any person obtaining
a copy of this software and associated documentation files (the
'Software'), to deal in the Software without restriction, including
without limitation the rights to use, copy, modify, merge, publish,
distribute, sublicense, and/or sell copies of the Software, and to
permit persons to whom the Software is furnished to do so, subject to
the following conditions:
The above copyright notice and this permission notice shall be
included in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND,
EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

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# Bytes utility
[![NPM Version][npm-image]][npm-url]
[![NPM Downloads][downloads-image]][downloads-url]
[![Build Status][ci-image]][ci-url]
[![Test Coverage][coveralls-image]][coveralls-url]
Utility to parse a string bytes (ex: `1TB`) to bytes (`1099511627776`) and vice-versa.
## Installation
This is a [Node.js](https://nodejs.org/en/) module available through the
[npm registry](https://www.npmjs.com/). Installation is done using the
[`npm install` command](https://docs.npmjs.com/getting-started/installing-npm-packages-locally):
```bash
$ npm install bytes
```
## Usage
```js
var bytes = require('bytes');
```
#### bytes(numberstring value, [options]): numberstringnull
Default export function. Delegates to either `bytes.format` or `bytes.parse` based on the type of `value`.
**Arguments**
| Name | Type | Description |
|---------|----------|--------------------|
| value | `number``string` | Number value to format or string value to parse |
| options | `Object` | Conversion options for `format` |
**Returns**
| Name | Type | Description |
|---------|------------------|-------------------------------------------------|
| results | `string``number``null` | Return null upon error. Numeric value in bytes, or string value otherwise. |
**Example**
```js
bytes(1024);
// output: '1KB'
bytes('1KB');
// output: 1024
```
#### bytes.format(number value, [options]): stringnull
Format the given value in bytes into a string. If the value is negative, it is kept as such. If it is a float, it is
rounded.
**Arguments**
| Name | Type | Description |
|---------|----------|--------------------|
| value | `number` | Value in bytes |
| options | `Object` | Conversion options |
**Options**
| Property | Type | Description |
|-------------------|--------|-----------------------------------------------------------------------------------------|
| decimalPlaces | `number``null` | Maximum number of decimal places to include in output. Default value to `2`. |
| fixedDecimals | `boolean``null` | Whether to always display the maximum number of decimal places. Default value to `false` |
| thousandsSeparator | `string``null` | Example of values: `' '`, `','` and `'.'`... Default value to `''`. |
| unit | `string``null` | The unit in which the result will be returned (B/KB/MB/GB/TB). Default value to `''` (which means auto detect). |
| unitSeparator | `string``null` | Separator to use between number and unit. Default value to `''`. |
**Returns**
| Name | Type | Description |
|---------|------------------|-------------------------------------------------|
| results | `string``null` | Return null upon error. String value otherwise. |
**Example**
```js
bytes.format(1024);
// output: '1KB'
bytes.format(1000);
// output: '1000B'
bytes.format(1000, {thousandsSeparator: ' '});
// output: '1 000B'
bytes.format(1024 * 1.7, {decimalPlaces: 0});
// output: '2KB'
bytes.format(1024, {unitSeparator: ' '});
// output: '1 KB'
```
#### bytes.parse(stringnumber value): numbernull
Parse the string value into an integer in bytes. If no unit is given, or `value`
is a number, it is assumed the value is in bytes.
Supported units and abbreviations are as follows and are case-insensitive:
* `b` for bytes
* `kb` for kilobytes
* `mb` for megabytes
* `gb` for gigabytes
* `tb` for terabytes
* `pb` for petabytes
The units are in powers of two, not ten. This means 1kb = 1024b according to this parser.
**Arguments**
| Name | Type | Description |
|---------------|--------|--------------------|
| value | `string``number` | String to parse, or number in bytes. |
**Returns**
| Name | Type | Description |
|---------|-------------|-------------------------|
| results | `number``null` | Return null upon error. Value in bytes otherwise. |
**Example**
```js
bytes.parse('1KB');
// output: 1024
bytes.parse('1024');
// output: 1024
bytes.parse(1024);
// output: 1024
```
## License
[MIT](LICENSE)
[ci-image]: https://badgen.net/github/checks/visionmedia/bytes.js/master?label=ci
[ci-url]: https://github.com/visionmedia/bytes.js/actions?query=workflow%3Aci
[coveralls-image]: https://badgen.net/coveralls/c/github/visionmedia/bytes.js/master
[coveralls-url]: https://coveralls.io/r/visionmedia/bytes.js?branch=master
[downloads-image]: https://badgen.net/npm/dm/bytes
[downloads-url]: https://npmjs.org/package/bytes
[npm-image]: https://badgen.net/npm/v/bytes
[npm-url]: https://npmjs.org/package/bytes

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/*!
* bytes
* Copyright(c) 2012-2014 TJ Holowaychuk
* Copyright(c) 2015 Jed Watson
* MIT Licensed
*/
'use strict';
/**
* Module exports.
* @public
*/
module.exports = bytes;
module.exports.format = format;
module.exports.parse = parse;
/**
* Module variables.
* @private
*/
var formatThousandsRegExp = /\B(?=(\d{3})+(?!\d))/g;
var formatDecimalsRegExp = /(?:\.0*|(\.[^0]+)0+)$/;
var map = {
b: 1,
kb: 1 << 10,
mb: 1 << 20,
gb: 1 << 30,
tb: Math.pow(1024, 4),
pb: Math.pow(1024, 5),
};
var parseRegExp = /^((-|\+)?(\d+(?:\.\d+)?)) *(kb|mb|gb|tb|pb)$/i;
/**
* Convert the given value in bytes into a string or parse to string to an integer in bytes.
*
* @param {string|number} value
* @param {{
* case: [string],
* decimalPlaces: [number]
* fixedDecimals: [boolean]
* thousandsSeparator: [string]
* unitSeparator: [string]
* }} [options] bytes options.
*
* @returns {string|number|null}
*/
function bytes(value, options) {
if (typeof value === 'string') {
return parse(value);
}
if (typeof value === 'number') {
return format(value, options);
}
return null;
}
/**
* Format the given value in bytes into a string.
*
* If the value is negative, it is kept as such. If it is a float,
* it is rounded.
*
* @param {number} value
* @param {object} [options]
* @param {number} [options.decimalPlaces=2]
* @param {number} [options.fixedDecimals=false]
* @param {string} [options.thousandsSeparator=]
* @param {string} [options.unit=]
* @param {string} [options.unitSeparator=]
*
* @returns {string|null}
* @public
*/
function format(value, options) {
if (!Number.isFinite(value)) {
return null;
}
var mag = Math.abs(value);
var thousandsSeparator = (options && options.thousandsSeparator) || '';
var unitSeparator = (options && options.unitSeparator) || '';
var decimalPlaces = (options && options.decimalPlaces !== undefined) ? options.decimalPlaces : 2;
var fixedDecimals = Boolean(options && options.fixedDecimals);
var unit = (options && options.unit) || '';
if (!unit || !map[unit.toLowerCase()]) {
if (mag >= map.pb) {
unit = 'PB';
} else if (mag >= map.tb) {
unit = 'TB';
} else if (mag >= map.gb) {
unit = 'GB';
} else if (mag >= map.mb) {
unit = 'MB';
} else if (mag >= map.kb) {
unit = 'KB';
} else {
unit = 'B';
}
}
var val = value / map[unit.toLowerCase()];
var str = val.toFixed(decimalPlaces);
if (!fixedDecimals) {
str = str.replace(formatDecimalsRegExp, '$1');
}
if (thousandsSeparator) {
str = str.split('.').map(function (s, i) {
return i === 0
? s.replace(formatThousandsRegExp, thousandsSeparator)
: s
}).join('.');
}
return str + unitSeparator + unit;
}
/**
* Parse the string value into an integer in bytes.
*
* If no unit is given, it is assumed the value is in bytes.
*
* @param {number|string} val
*
* @returns {number|null}
* @public
*/
function parse(val) {
if (typeof val === 'number' && !isNaN(val)) {
return val;
}
if (typeof val !== 'string') {
return null;
}
// Test if the string passed is valid
var results = parseRegExp.exec(val);
var floatValue;
var unit = 'b';
if (!results) {
// Nothing could be extracted from the given string
floatValue = parseInt(val, 10);
unit = 'b'
} else {
// Retrieve the value and the unit
floatValue = parseFloat(results[1]);
unit = results[4].toLowerCase();
}
if (isNaN(floatValue)) {
return null;
}
return Math.floor(map[unit] * floatValue);
}

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{
"name": "bytes",
"description": "Utility to parse a string bytes to bytes and vice-versa",
"version": "3.1.2",
"author": "TJ Holowaychuk <tj@vision-media.ca> (http://tjholowaychuk.com)",
"contributors": [
"Jed Watson <jed.watson@me.com>",
"Théo FIDRY <theo.fidry@gmail.com>"
],
"license": "MIT",
"keywords": [
"byte",
"bytes",
"utility",
"parse",
"parser",
"convert",
"converter"
],
"repository": "visionmedia/bytes.js",
"devDependencies": {
"eslint": "7.32.0",
"eslint-plugin-markdown": "2.2.1",
"mocha": "9.2.0",
"nyc": "15.1.0"
},
"files": [
"History.md",
"LICENSE",
"Readme.md",
"index.js"
],
"engines": {
"node": ">= 0.8"
},
"scripts": {
"lint": "eslint .",
"test": "mocha --check-leaks --reporter spec",
"test-ci": "nyc --reporter=lcov --reporter=text npm test",
"test-cov": "nyc --reporter=html --reporter=text npm test"
}
}

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@@ -0,0 +1,17 @@
{
"root": true,
"extends": "@ljharb",
"rules": {
"func-name-matching": 0,
"id-length": 0,
"new-cap": [2, {
"capIsNewExceptions": [
"GetIntrinsic",
],
}],
"no-extra-parens": 0,
"no-magic-numbers": 0,
},
}

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# These are supported funding model platforms
github: [ljharb]
patreon: # Replace with a single Patreon username
open_collective: # Replace with a single Open Collective username
ko_fi: # Replace with a single Ko-fi username
tidelift: npm/call-bind-apply-helpers
community_bridge: # Replace with a single Community Bridge project-name e.g., cloud-foundry
liberapay: # Replace with a single Liberapay username
issuehunt: # Replace with a single IssueHunt username
otechie: # Replace with a single Otechie username
custom: # Replace with up to 4 custom sponsorship URLs e.g., ['link1', 'link2']

View File

@@ -0,0 +1,9 @@
{
"all": true,
"check-coverage": false,
"reporter": ["text-summary", "text", "html", "json"],
"exclude": [
"coverage",
"test"
]
}

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@@ -0,0 +1,30 @@
# Changelog
All notable changes to this project will be documented in this file.
The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/)
and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
## [v1.0.2](https://github.com/ljharb/call-bind-apply-helpers/compare/v1.0.1...v1.0.2) - 2025-02-12
### Commits
- [types] improve inferred types [`e6f9586`](https://github.com/ljharb/call-bind-apply-helpers/commit/e6f95860a3c72879cb861a858cdfb8138fbedec1)
- [Dev Deps] update `@arethetypeswrong/cli`, `@ljharb/tsconfig`, `@types/tape`, `es-value-fixtures`, `for-each`, `has-strict-mode`, `object-inspect` [`e43d540`](https://github.com/ljharb/call-bind-apply-helpers/commit/e43d5409f97543bfbb11f345d47d8ce4e066d8c1)
## [v1.0.1](https://github.com/ljharb/call-bind-apply-helpers/compare/v1.0.0...v1.0.1) - 2024-12-08
### Commits
- [types] `reflectApply`: fix types [`4efc396`](https://github.com/ljharb/call-bind-apply-helpers/commit/4efc3965351a4f02cc55e836fa391d3d11ef2ef8)
- [Fix] `reflectApply`: oops, Reflect is not a function [`83cc739`](https://github.com/ljharb/call-bind-apply-helpers/commit/83cc7395de6b79b7730bdf092f1436f0b1263c75)
- [Dev Deps] update `@arethetypeswrong/cli` [`80bd5d3`](https://github.com/ljharb/call-bind-apply-helpers/commit/80bd5d3ae58b4f6b6995ce439dd5a1bcb178a940)
## v1.0.0 - 2024-12-05
### Commits
- Initial implementation, tests, readme [`7879629`](https://github.com/ljharb/call-bind-apply-helpers/commit/78796290f9b7430c9934d6f33d94ae9bc89fce04)
- Initial commit [`3f1dc16`](https://github.com/ljharb/call-bind-apply-helpers/commit/3f1dc164afc43285631b114a5f9dd9137b2b952f)
- npm init [`081df04`](https://github.com/ljharb/call-bind-apply-helpers/commit/081df048c312fcee400922026f6e97281200a603)
- Only apps should have lockfiles [`5b9ca0f`](https://github.com/ljharb/call-bind-apply-helpers/commit/5b9ca0fe8101ebfaf309c549caac4e0a017ed930)

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@@ -0,0 +1,21 @@
MIT License
Copyright (c) 2024 Jordan Harband
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.

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@@ -0,0 +1,62 @@
# call-bind-apply-helpers <sup>[![Version Badge][npm-version-svg]][package-url]</sup>
[![github actions][actions-image]][actions-url]
[![coverage][codecov-image]][codecov-url]
[![dependency status][deps-svg]][deps-url]
[![dev dependency status][dev-deps-svg]][dev-deps-url]
[![License][license-image]][license-url]
[![Downloads][downloads-image]][downloads-url]
[![npm badge][npm-badge-png]][package-url]
Helper functions around Function call/apply/bind, for use in `call-bind`.
The only packages that should likely ever use this package directly are `call-bind` and `get-intrinsic`.
Please use `call-bind` unless you have a very good reason not to.
## Getting started
```sh
npm install --save call-bind-apply-helpers
```
## Usage/Examples
```js
const assert = require('assert');
const callBindBasic = require('call-bind-apply-helpers');
function f(a, b) {
assert.equal(this, 1);
assert.equal(a, 2);
assert.equal(b, 3);
assert.equal(arguments.length, 2);
}
const fBound = callBindBasic([f, 1]);
delete Function.prototype.call;
delete Function.prototype.bind;
fBound(2, 3);
```
## Tests
Clone the repo, `npm install`, and run `npm test`
[package-url]: https://npmjs.org/package/call-bind-apply-helpers
[npm-version-svg]: https://versionbadg.es/ljharb/call-bind-apply-helpers.svg
[deps-svg]: https://david-dm.org/ljharb/call-bind-apply-helpers.svg
[deps-url]: https://david-dm.org/ljharb/call-bind-apply-helpers
[dev-deps-svg]: https://david-dm.org/ljharb/call-bind-apply-helpers/dev-status.svg
[dev-deps-url]: https://david-dm.org/ljharb/call-bind-apply-helpers#info=devDependencies
[npm-badge-png]: https://nodei.co/npm/call-bind-apply-helpers.png?downloads=true&stars=true
[license-image]: https://img.shields.io/npm/l/call-bind-apply-helpers.svg
[license-url]: LICENSE
[downloads-image]: https://img.shields.io/npm/dm/call-bind-apply-helpers.svg
[downloads-url]: https://npm-stat.com/charts.html?package=call-bind-apply-helpers
[codecov-image]: https://codecov.io/gh/ljharb/call-bind-apply-helpers/branch/main/graphs/badge.svg
[codecov-url]: https://app.codecov.io/gh/ljharb/call-bind-apply-helpers/
[actions-image]: https://img.shields.io/endpoint?url=https://github-actions-badge-u3jn4tfpocch.runkit.sh/ljharb/call-bind-apply-helpers
[actions-url]: https://github.com/ljharb/call-bind-apply-helpers/actions

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export = Reflect.apply;

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'use strict';
var bind = require('function-bind');
var $apply = require('./functionApply');
var $call = require('./functionCall');
var $reflectApply = require('./reflectApply');
/** @type {import('./actualApply')} */
module.exports = $reflectApply || bind.call($call, $apply);

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import actualApply from './actualApply';
type TupleSplitHead<T extends any[], N extends number> = T['length'] extends N
? T
: T extends [...infer R, any]
? TupleSplitHead<R, N>
: never
type TupleSplitTail<T, N extends number, O extends any[] = []> = O['length'] extends N
? T
: T extends [infer F, ...infer R]
? TupleSplitTail<[...R], N, [...O, F]>
: never
type TupleSplit<T extends any[], N extends number> = [TupleSplitHead<T, N>, TupleSplitTail<T, N>]
declare function applyBind(...args: TupleSplit<Parameters<typeof actualApply>, 2>[1]): ReturnType<typeof actualApply>;
export = applyBind;

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'use strict';
var bind = require('function-bind');
var $apply = require('./functionApply');
var actualApply = require('./actualApply');
/** @type {import('./applyBind')} */
module.exports = function applyBind() {
return actualApply(bind, $apply, arguments);
};

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export = Function.prototype.apply;

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@@ -0,0 +1,4 @@
'use strict';
/** @type {import('./functionApply')} */
module.exports = Function.prototype.apply;

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@@ -0,0 +1 @@
export = Function.prototype.call;

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@@ -0,0 +1,4 @@
'use strict';
/** @type {import('./functionCall')} */
module.exports = Function.prototype.call;

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type RemoveFromTuple<
Tuple extends readonly unknown[],
RemoveCount extends number,
Index extends 1[] = []
> = Index["length"] extends RemoveCount
? Tuple
: Tuple extends [infer First, ...infer Rest]
? RemoveFromTuple<Rest, RemoveCount, [...Index, 1]>
: Tuple;
type ConcatTuples<
Prefix extends readonly unknown[],
Suffix extends readonly unknown[]
> = [...Prefix, ...Suffix];
type ExtractFunctionParams<T> = T extends (this: infer TThis, ...args: infer P extends readonly unknown[]) => infer R
? { thisArg: TThis; params: P; returnType: R }
: never;
type BindFunction<
T extends (this: any, ...args: any[]) => any,
TThis,
TBoundArgs extends readonly unknown[],
ReceiverBound extends boolean
> = ExtractFunctionParams<T> extends {
thisArg: infer OrigThis;
params: infer P extends readonly unknown[];
returnType: infer R;
}
? ReceiverBound extends true
? (...args: RemoveFromTuple<P, Extract<TBoundArgs["length"], number>>) => R extends [OrigThis, ...infer Rest]
? [TThis, ...Rest] // Replace `this` with `thisArg`
: R
: <U, RemainingArgs extends RemoveFromTuple<P, Extract<TBoundArgs["length"], number>>>(
thisArg: U,
...args: RemainingArgs
) => R extends [OrigThis, ...infer Rest]
? [U, ...ConcatTuples<TBoundArgs, Rest>] // Preserve bound args in return type
: R
: never;
declare function callBind<
const T extends (this: any, ...args: any[]) => any,
Extracted extends ExtractFunctionParams<T>,
const TBoundArgs extends Partial<Extracted["params"]> & readonly unknown[],
const TThis extends Extracted["thisArg"]
>(
args: [fn: T, thisArg: TThis, ...boundArgs: TBoundArgs]
): BindFunction<T, TThis, TBoundArgs, true>;
declare function callBind<
const T extends (this: any, ...args: any[]) => any,
Extracted extends ExtractFunctionParams<T>,
const TBoundArgs extends Partial<Extracted["params"]> & readonly unknown[]
>(
args: [fn: T, ...boundArgs: TBoundArgs]
): BindFunction<T, Extracted["thisArg"], TBoundArgs, false>;
declare function callBind<const TArgs extends readonly unknown[]>(
args: [fn: Exclude<TArgs[0], Function>, ...rest: TArgs]
): never;
// export as namespace callBind;
export = callBind;

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'use strict';
var bind = require('function-bind');
var $TypeError = require('es-errors/type');
var $call = require('./functionCall');
var $actualApply = require('./actualApply');
/** @type {(args: [Function, thisArg?: unknown, ...args: unknown[]]) => Function} TODO FIXME, find a way to use import('.') */
module.exports = function callBindBasic(args) {
if (args.length < 1 || typeof args[0] !== 'function') {
throw new $TypeError('a function is required');
}
return $actualApply(bind, $call, args);
};

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{
"name": "call-bind-apply-helpers",
"version": "1.0.2",
"description": "Helper functions around Function call/apply/bind, for use in `call-bind`",
"main": "index.js",
"exports": {
".": "./index.js",
"./actualApply": "./actualApply.js",
"./applyBind": "./applyBind.js",
"./functionApply": "./functionApply.js",
"./functionCall": "./functionCall.js",
"./reflectApply": "./reflectApply.js",
"./package.json": "./package.json"
},
"scripts": {
"prepack": "npmignore --auto --commentLines=auto",
"prepublish": "not-in-publish || npm run prepublishOnly",
"prepublishOnly": "safe-publish-latest",
"prelint": "evalmd README.md",
"lint": "eslint --ext=.js,.mjs .",
"postlint": "tsc -p . && attw -P",
"pretest": "npm run lint",
"tests-only": "nyc tape 'test/**/*.js'",
"test": "npm run tests-only",
"posttest": "npx npm@'>=10.2' audit --production",
"version": "auto-changelog && git add CHANGELOG.md",
"postversion": "auto-changelog && git add CHANGELOG.md && git commit --no-edit --amend && git tag -f \"v$(node -e \"console.log(require('./package.json').version)\")\""
},
"repository": {
"type": "git",
"url": "git+https://github.com/ljharb/call-bind-apply-helpers.git"
},
"author": "Jordan Harband <ljharb@gmail.com>",
"license": "MIT",
"bugs": {
"url": "https://github.com/ljharb/call-bind-apply-helpers/issues"
},
"homepage": "https://github.com/ljharb/call-bind-apply-helpers#readme",
"dependencies": {
"es-errors": "^1.3.0",
"function-bind": "^1.1.2"
},
"devDependencies": {
"@arethetypeswrong/cli": "^0.17.3",
"@ljharb/eslint-config": "^21.1.1",
"@ljharb/tsconfig": "^0.2.3",
"@types/for-each": "^0.3.3",
"@types/function-bind": "^1.1.10",
"@types/object-inspect": "^1.13.0",
"@types/tape": "^5.8.1",
"auto-changelog": "^2.5.0",
"encoding": "^0.1.13",
"es-value-fixtures": "^1.7.1",
"eslint": "=8.8.0",
"evalmd": "^0.0.19",
"for-each": "^0.3.5",
"has-strict-mode": "^1.1.0",
"in-publish": "^2.0.1",
"npmignore": "^0.3.1",
"nyc": "^10.3.2",
"object-inspect": "^1.13.4",
"safe-publish-latest": "^2.0.0",
"tape": "^5.9.0",
"typescript": "next"
},
"testling": {
"files": "test/index.js"
},
"auto-changelog": {
"output": "CHANGELOG.md",
"template": "keepachangelog",
"unreleased": false,
"commitLimit": false,
"backfillLimit": false,
"hideCredit": true
},
"publishConfig": {
"ignore": [
".github/workflows"
]
},
"engines": {
"node": ">= 0.4"
}
}

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declare const reflectApply: false | typeof Reflect.apply;
export = reflectApply;

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'use strict';
/** @type {import('./reflectApply')} */
module.exports = typeof Reflect !== 'undefined' && Reflect && Reflect.apply;

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@@ -0,0 +1,63 @@
'use strict';
var callBind = require('../');
var hasStrictMode = require('has-strict-mode')();
var forEach = require('for-each');
var inspect = require('object-inspect');
var v = require('es-value-fixtures');
var test = require('tape');
test('callBindBasic', function (t) {
forEach(v.nonFunctions, function (nonFunction) {
t['throws'](
// @ts-expect-error
function () { callBind([nonFunction]); },
TypeError,
inspect(nonFunction) + ' is not a function'
);
});
var sentinel = { sentinel: true };
/** @type {<T, A extends number, B extends number>(this: T, a: A, b: B) => [T | undefined, A, B]} */
var func = function (a, b) {
// eslint-disable-next-line no-invalid-this
return [!hasStrictMode && this === global ? undefined : this, a, b];
};
t.equal(func.length, 2, 'original function length is 2');
/** type {(thisArg: unknown, a: number, b: number) => [unknown, number, number]} */
var bound = callBind([func]);
/** type {((a: number, b: number) => [typeof sentinel, typeof a, typeof b])} */
var boundR = callBind([func, sentinel]);
/** type {((b: number) => [typeof sentinel, number, typeof b])} */
var boundArg = callBind([func, sentinel, /** @type {const} */ (1)]);
// @ts-expect-error
t.deepEqual(bound(), [undefined, undefined, undefined], 'bound func with no args');
// @ts-expect-error
t.deepEqual(func(), [undefined, undefined, undefined], 'unbound func with too few args');
// @ts-expect-error
t.deepEqual(bound(1, 2), [hasStrictMode ? 1 : Object(1), 2, undefined], 'bound func too few args');
// @ts-expect-error
t.deepEqual(boundR(), [sentinel, undefined, undefined], 'bound func with receiver, with too few args');
// @ts-expect-error
t.deepEqual(boundArg(), [sentinel, 1, undefined], 'bound func with receiver and arg, with too few args');
t.deepEqual(func(1, 2), [undefined, 1, 2], 'unbound func with right args');
t.deepEqual(bound(1, 2, 3), [hasStrictMode ? 1 : Object(1), 2, 3], 'bound func with right args');
t.deepEqual(boundR(1, 2), [sentinel, 1, 2], 'bound func with receiver, with right args');
t.deepEqual(boundArg(2), [sentinel, 1, 2], 'bound func with receiver and arg, with right arg');
// @ts-expect-error
t.deepEqual(func(1, 2, 3), [undefined, 1, 2], 'unbound func with too many args');
// @ts-expect-error
t.deepEqual(bound(1, 2, 3, 4), [hasStrictMode ? 1 : Object(1), 2, 3], 'bound func with too many args');
// @ts-expect-error
t.deepEqual(boundR(1, 2, 3), [sentinel, 1, 2], 'bound func with receiver, with too many args');
// @ts-expect-error
t.deepEqual(boundArg(2, 3), [sentinel, 1, 2], 'bound func with receiver and arg, with too many args');
t.end();
});

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{
"extends": "@ljharb/tsconfig",
"compilerOptions": {
"target": "es2021",
},
"exclude": [
"coverage",
],
}

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{
"root": true,
"extends": "@ljharb",
"rules": {
"new-cap": [2, {
"capIsNewExceptions": [
"GetIntrinsic",
],
}],
},
}

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# These are supported funding model platforms
github: [ljharb]
patreon: # Replace with a single Patreon username
open_collective: # Replace with a single Open Collective username
ko_fi: # Replace with a single Ko-fi username
tidelift: npm/call-bound
community_bridge: # Replace with a single Community Bridge project-name e.g., cloud-foundry
liberapay: # Replace with a single Liberapay username
issuehunt: # Replace with a single IssueHunt username
otechie: # Replace with a single Otechie username
custom: # Replace with up to 4 custom sponsorship URLs e.g., ['link1', 'link2']

9
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{
"all": true,
"check-coverage": false,
"reporter": ["text-summary", "text", "html", "json"],
"exclude": [
"coverage",
"test"
]
}

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# Changelog
All notable changes to this project will be documented in this file.
The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/)
and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
## [v1.0.4](https://github.com/ljharb/call-bound/compare/v1.0.3...v1.0.4) - 2025-03-03
### Commits
- [types] improve types [`e648922`](https://github.com/ljharb/call-bound/commit/e6489222a9e54f350fbf952ceabe51fd8b6027ff)
- [Dev Deps] update `@arethetypeswrong/cli`, `@ljharb/tsconfig`, `@types/tape`, `es-value-fixtures`, `for-each`, `has-strict-mode`, `object-inspect` [`a42a5eb`](https://github.com/ljharb/call-bound/commit/a42a5ebe6c1b54fcdc7997c7dc64fdca9e936719)
- [Deps] update `call-bind-apply-helpers`, `get-intrinsic` [`f529eac`](https://github.com/ljharb/call-bound/commit/f529eac132404c17156bbc23ab2297a25d0f20b8)
## [v1.0.3](https://github.com/ljharb/call-bound/compare/v1.0.2...v1.0.3) - 2024-12-15
### Commits
- [Refactor] use `call-bind-apply-helpers` instead of `call-bind` [`5e0b134`](https://github.com/ljharb/call-bound/commit/5e0b13496df14fb7d05dae9412f088da8d3f75be)
- [Deps] update `get-intrinsic` [`41fc967`](https://github.com/ljharb/call-bound/commit/41fc96732a22c7b7e8f381f93ccc54bb6293be2e)
- [readme] fix example [`79a0137`](https://github.com/ljharb/call-bound/commit/79a0137723f7c6d09c9c05452bbf8d5efb5d6e49)
- [meta] add `sideEffects` flag [`08b07be`](https://github.com/ljharb/call-bound/commit/08b07be7f1c03f67dc6f3cdaf0906259771859f7)
## [v1.0.2](https://github.com/ljharb/call-bound/compare/v1.0.1...v1.0.2) - 2024-12-10
### Commits
- [Dev Deps] update `@arethetypeswrong/cli`, `@ljharb/tsconfig`, `gopd` [`e6a5ffe`](https://github.com/ljharb/call-bound/commit/e6a5ffe849368fe4f74dfd6cdeca1b9baa39e8d5)
- [Deps] update `call-bind`, `get-intrinsic` [`2aeb5b5`](https://github.com/ljharb/call-bound/commit/2aeb5b521dc2b2683d1345c753ea1161de2d1c14)
- [types] improve return type [`1a0c9fe`](https://github.com/ljharb/call-bound/commit/1a0c9fe3114471e7ca1f57d104e2efe713bb4871)
## v1.0.1 - 2024-12-05
### Commits
- Initial implementation, tests, readme, types [`6d94121`](https://github.com/ljharb/call-bound/commit/6d94121a9243602e506334069f7a03189fe3363d)
- Initial commit [`0eae867`](https://github.com/ljharb/call-bound/commit/0eae867334ea025c33e6e91cdecfc9df96680cf9)
- npm init [`71b2479`](https://github.com/ljharb/call-bound/commit/71b2479c6723e0b7d91a6b663613067e98b7b275)
- Only apps should have lockfiles [`c3754a9`](https://github.com/ljharb/call-bound/commit/c3754a949b7f9132b47e2d18c1729889736741eb)
- [actions] skip `npm ls` in node &lt; 10 [`74275a5`](https://github.com/ljharb/call-bound/commit/74275a5186b8caf6309b6b97472bdcb0df4683a8)
- [Dev Deps] add missing peer dep [`1354de8`](https://github.com/ljharb/call-bound/commit/1354de8679413e4ae9c523d85f76fa7a5e032d97)

21
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@@ -0,0 +1,21 @@
MIT License
Copyright (c) 2024 Jordan Harband
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.

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# call-bound <sup>[![Version Badge][npm-version-svg]][package-url]</sup>
[![github actions][actions-image]][actions-url]
[![coverage][codecov-image]][codecov-url]
[![dependency status][deps-svg]][deps-url]
[![dev dependency status][dev-deps-svg]][dev-deps-url]
[![License][license-image]][license-url]
[![Downloads][downloads-image]][downloads-url]
[![npm badge][npm-badge-png]][package-url]
Robust call-bound JavaScript intrinsics, using `call-bind` and `get-intrinsic`.
## Getting started
```sh
npm install --save call-bound
```
## Usage/Examples
```js
const assert = require('assert');
const callBound = require('call-bound');
const slice = callBound('Array.prototype.slice');
delete Function.prototype.call;
delete Function.prototype.bind;
delete Array.prototype.slice;
assert.deepEqual(slice([1, 2, 3, 4], 1, -1), [2, 3]);
```
## Tests
Clone the repo, `npm install`, and run `npm test`
[package-url]: https://npmjs.org/package/call-bound
[npm-version-svg]: https://versionbadg.es/ljharb/call-bound.svg
[deps-svg]: https://david-dm.org/ljharb/call-bound.svg
[deps-url]: https://david-dm.org/ljharb/call-bound
[dev-deps-svg]: https://david-dm.org/ljharb/call-bound/dev-status.svg
[dev-deps-url]: https://david-dm.org/ljharb/call-bound#info=devDependencies
[npm-badge-png]: https://nodei.co/npm/call-bound.png?downloads=true&stars=true
[license-image]: https://img.shields.io/npm/l/call-bound.svg
[license-url]: LICENSE
[downloads-image]: https://img.shields.io/npm/dm/call-bound.svg
[downloads-url]: https://npm-stat.com/charts.html?package=call-bound
[codecov-image]: https://codecov.io/gh/ljharb/call-bound/branch/main/graphs/badge.svg
[codecov-url]: https://app.codecov.io/gh/ljharb/call-bound/
[actions-image]: https://img.shields.io/endpoint?url=https://github-actions-badge-u3jn4tfpocch.runkit.sh/ljharb/call-bound
[actions-url]: https://github.com/ljharb/call-bound/actions

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type Intrinsic = typeof globalThis;
type IntrinsicName = keyof Intrinsic | `%${keyof Intrinsic}%`;
type IntrinsicPath = IntrinsicName | `${StripPercents<IntrinsicName>}.${string}` | `%${StripPercents<IntrinsicName>}.${string}%`;
type AllowMissing = boolean;
type StripPercents<T extends string> = T extends `%${infer U}%` ? U : T;
type BindMethodPrecise<F> =
F extends (this: infer This, ...args: infer Args) => infer R
? (obj: This, ...args: Args) => R
: F extends {
(this: infer This1, ...args: infer Args1): infer R1;
(this: infer This2, ...args: infer Args2): infer R2
}
? {
(obj: This1, ...args: Args1): R1;
(obj: This2, ...args: Args2): R2
}
: never
// Extract method type from a prototype
type GetPrototypeMethod<T extends keyof typeof globalThis, M extends string> =
(typeof globalThis)[T] extends { prototype: any }
? M extends keyof (typeof globalThis)[T]['prototype']
? (typeof globalThis)[T]['prototype'][M]
: never
: never
// Get static property/method
type GetStaticMember<T extends keyof typeof globalThis, P extends string> =
P extends keyof (typeof globalThis)[T] ? (typeof globalThis)[T][P] : never
// Type that maps string path to actual bound function or value with better precision
type BoundIntrinsic<S extends string> =
S extends `${infer Obj}.prototype.${infer Method}`
? Obj extends keyof typeof globalThis
? BindMethodPrecise<GetPrototypeMethod<Obj, Method & string>>
: unknown
: S extends `${infer Obj}.${infer Prop}`
? Obj extends keyof typeof globalThis
? GetStaticMember<Obj, Prop & string>
: unknown
: unknown
declare function arraySlice<T>(array: readonly T[], start?: number, end?: number): T[];
declare function arraySlice<T>(array: ArrayLike<T>, start?: number, end?: number): T[];
declare function arraySlice<T>(array: IArguments, start?: number, end?: number): T[];
// Special cases for methods that need explicit typing
interface SpecialCases {
'%Object.prototype.isPrototypeOf%': (thisArg: {}, obj: unknown) => boolean;
'%String.prototype.replace%': {
(str: string, searchValue: string | RegExp, replaceValue: string): string;
(str: string, searchValue: string | RegExp, replacer: (substring: string, ...args: any[]) => string): string
};
'%Object.prototype.toString%': (obj: {}) => string;
'%Object.prototype.hasOwnProperty%': (obj: {}, v: PropertyKey) => boolean;
'%Array.prototype.slice%': typeof arraySlice;
'%Array.prototype.map%': <T, U>(array: readonly T[], callbackfn: (value: T, index: number, array: readonly T[]) => U, thisArg?: any) => U[];
'%Array.prototype.filter%': <T>(array: readonly T[], predicate: (value: T, index: number, array: readonly T[]) => unknown, thisArg?: any) => T[];
'%Array.prototype.indexOf%': <T>(array: readonly T[], searchElement: T, fromIndex?: number) => number;
'%Function.prototype.apply%': <T, A extends any[], R>(fn: (...args: A) => R, thisArg: any, args: A) => R;
'%Function.prototype.call%': <T, A extends any[], R>(fn: (...args: A) => R, thisArg: any, ...args: A) => R;
'%Function.prototype.bind%': <T, A extends any[], R>(fn: (...args: A) => R, thisArg: any, ...args: A) => (...remainingArgs: A) => R;
'%Promise.prototype.then%': {
<T, R>(promise: Promise<T>, onfulfilled: (value: T) => R | PromiseLike<R>): Promise<R>;
<T, R>(promise: Promise<T>, onfulfilled: ((value: T) => R | PromiseLike<R>) | undefined | null, onrejected: (reason: any) => R | PromiseLike<R>): Promise<R>;
};
'%RegExp.prototype.test%': (regexp: RegExp, str: string) => boolean;
'%RegExp.prototype.exec%': (regexp: RegExp, str: string) => RegExpExecArray | null;
'%Error.prototype.toString%': (error: Error) => string;
'%TypeError.prototype.toString%': (error: TypeError) => string;
'%String.prototype.split%': (
obj: unknown,
splitter: string | RegExp | {
[Symbol.split](string: string, limit?: number): string[];
},
limit?: number | undefined
) => string[];
}
/**
* Returns a bound function for a prototype method, or a value for a static property.
*
* @param name - The name of the intrinsic (e.g. 'Array.prototype.slice')
* @param {AllowMissing} [allowMissing] - Whether to allow missing intrinsics (default: false)
*/
declare function callBound<K extends keyof SpecialCases | StripPercents<keyof SpecialCases>, S extends IntrinsicPath>(name: K, allowMissing?: AllowMissing): SpecialCases[`%${StripPercents<K>}%`];
declare function callBound<K extends keyof SpecialCases | StripPercents<keyof SpecialCases>, S extends IntrinsicPath>(name: S, allowMissing?: AllowMissing): BoundIntrinsic<S>;
export = callBound;

19
wasm_pthread_fast/web/node_modules/call-bound/index.js generated vendored Normal file
View File

@@ -0,0 +1,19 @@
'use strict';
var GetIntrinsic = require('get-intrinsic');
var callBindBasic = require('call-bind-apply-helpers');
/** @type {(thisArg: string, searchString: string, position?: number) => number} */
var $indexOf = callBindBasic([GetIntrinsic('%String.prototype.indexOf%')]);
/** @type {import('.')} */
module.exports = function callBoundIntrinsic(name, allowMissing) {
/* eslint no-extra-parens: 0 */
var intrinsic = /** @type {(this: unknown, ...args: unknown[]) => unknown} */ (GetIntrinsic(name, !!allowMissing));
if (typeof intrinsic === 'function' && $indexOf(name, '.prototype.') > -1) {
return callBindBasic(/** @type {const} */ ([intrinsic]));
}
return intrinsic;
};

View File

@@ -0,0 +1,99 @@
{
"name": "call-bound",
"version": "1.0.4",
"description": "Robust call-bound JavaScript intrinsics, using `call-bind` and `get-intrinsic`.",
"main": "index.js",
"exports": {
".": "./index.js",
"./package.json": "./package.json"
},
"sideEffects": false,
"scripts": {
"prepack": "npmignore --auto --commentLines=auto",
"prepublish": "not-in-publish || npm run prepublishOnly",
"prepublishOnly": "safe-publish-latest",
"prelint": "evalmd README.md",
"lint": "eslint --ext=.js,.mjs .",
"postlint": "tsc -p . && attw -P",
"pretest": "npm run lint",
"tests-only": "nyc tape 'test/**/*.js'",
"test": "npm run tests-only",
"posttest": "npx npm@'>=10.2' audit --production",
"version": "auto-changelog && git add CHANGELOG.md",
"postversion": "auto-changelog && git add CHANGELOG.md && git commit --no-edit --amend && git tag -f \"v$(node -e \"console.log(require('./package.json').version)\")\""
},
"repository": {
"type": "git",
"url": "git+https://github.com/ljharb/call-bound.git"
},
"keywords": [
"javascript",
"ecmascript",
"es",
"js",
"callbind",
"callbound",
"call",
"bind",
"bound",
"call-bind",
"call-bound",
"function",
"es-abstract"
],
"author": "Jordan Harband <ljharb@gmail.com>",
"funding": {
"url": "https://github.com/sponsors/ljharb"
},
"license": "MIT",
"bugs": {
"url": "https://github.com/ljharb/call-bound/issues"
},
"homepage": "https://github.com/ljharb/call-bound#readme",
"dependencies": {
"call-bind-apply-helpers": "^1.0.2",
"get-intrinsic": "^1.3.0"
},
"devDependencies": {
"@arethetypeswrong/cli": "^0.17.4",
"@ljharb/eslint-config": "^21.1.1",
"@ljharb/tsconfig": "^0.3.0",
"@types/call-bind": "^1.0.5",
"@types/get-intrinsic": "^1.2.3",
"@types/tape": "^5.8.1",
"auto-changelog": "^2.5.0",
"encoding": "^0.1.13",
"es-value-fixtures": "^1.7.1",
"eslint": "=8.8.0",
"evalmd": "^0.0.19",
"for-each": "^0.3.5",
"gopd": "^1.2.0",
"has-strict-mode": "^1.1.0",
"in-publish": "^2.0.1",
"npmignore": "^0.3.1",
"nyc": "^10.3.2",
"object-inspect": "^1.13.4",
"safe-publish-latest": "^2.0.0",
"tape": "^5.9.0",
"typescript": "next"
},
"testling": {
"files": "test/index.js"
},
"auto-changelog": {
"output": "CHANGELOG.md",
"template": "keepachangelog",
"unreleased": false,
"commitLimit": false,
"backfillLimit": false,
"hideCredit": true
},
"publishConfig": {
"ignore": [
".github/workflows"
]
},
"engines": {
"node": ">= 0.4"
}
}

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@@ -0,0 +1,61 @@
'use strict';
var test = require('tape');
var callBound = require('../');
/** @template {true} T @template U @typedef {T extends U ? T : never} AssertType */
test('callBound', function (t) {
// static primitive
t.equal(callBound('Array.length'), Array.length, 'Array.length yields itself');
t.equal(callBound('%Array.length%'), Array.length, '%Array.length% yields itself');
// static non-function object
t.equal(callBound('Array.prototype'), Array.prototype, 'Array.prototype yields itself');
t.equal(callBound('%Array.prototype%'), Array.prototype, '%Array.prototype% yields itself');
t.equal(callBound('Array.constructor'), Array.constructor, 'Array.constructor yields itself');
t.equal(callBound('%Array.constructor%'), Array.constructor, '%Array.constructor% yields itself');
// static function
t.equal(callBound('Date.parse'), Date.parse, 'Date.parse yields itself');
t.equal(callBound('%Date.parse%'), Date.parse, '%Date.parse% yields itself');
// prototype primitive
t.equal(callBound('Error.prototype.message'), Error.prototype.message, 'Error.prototype.message yields itself');
t.equal(callBound('%Error.prototype.message%'), Error.prototype.message, '%Error.prototype.message% yields itself');
var x = callBound('Object.prototype.toString');
var y = callBound('%Object.prototype.toString%');
// prototype function
t.notEqual(x, Object.prototype.toString, 'Object.prototype.toString does not yield itself');
t.notEqual(y, Object.prototype.toString, '%Object.prototype.toString% does not yield itself');
t.equal(x(true), Object.prototype.toString.call(true), 'call-bound Object.prototype.toString calls into the original');
t.equal(y(true), Object.prototype.toString.call(true), 'call-bound %Object.prototype.toString% calls into the original');
t['throws'](
// @ts-expect-error
function () { callBound('does not exist'); },
SyntaxError,
'nonexistent intrinsic throws'
);
t['throws'](
// @ts-expect-error
function () { callBound('does not exist', true); },
SyntaxError,
'allowMissing arg still throws for unknown intrinsic'
);
t.test('real but absent intrinsic', { skip: typeof WeakRef !== 'undefined' }, function (st) {
st['throws'](
function () { callBound('WeakRef'); },
TypeError,
'real but absent intrinsic throws'
);
st.equal(callBound('WeakRef', true), undefined, 'allowMissing arg avoids exception');
st.end();
});
t.end();
});

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{
"extends": "@ljharb/tsconfig",
"compilerOptions": {
"target": "ESNext",
"lib": ["es2024"],
},
"exclude": [
"coverage",
],
}

View File

@@ -0,0 +1,66 @@
1.0.0 / 2024-08-31
==================
* drop node <18
* allow utf8 as alias for utf-8
0.5.4 / 2021-12-10
==================
* deps: safe-buffer@5.2.1
0.5.3 / 2018-12-17
==================
* Use `safe-buffer` for improved Buffer API
0.5.2 / 2016-12-08
==================
* Fix `parse` to accept any linear whitespace character
0.5.1 / 2016-01-17
==================
* perf: enable strict mode
0.5.0 / 2014-10-11
==================
* Add `parse` function
0.4.0 / 2014-09-21
==================
* Expand non-Unicode `filename` to the full ISO-8859-1 charset
0.3.0 / 2014-09-20
==================
* Add `fallback` option
* Add `type` option
0.2.0 / 2014-09-19
==================
* Reduce ambiguity of file names with hex escape in buggy browsers
0.1.2 / 2014-09-19
==================
* Fix periodic invalid Unicode filename header
0.1.1 / 2014-09-19
==================
* Fix invalid characters appearing in `filename*` parameter
0.1.0 / 2014-09-18
==================
* Make the `filename` argument optional
0.0.0 / 2014-09-18
==================
* Initial release

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@@ -0,0 +1,22 @@
(The MIT License)
Copyright (c) 2014-2017 Douglas Christopher Wilson
Permission is hereby granted, free of charge, to any person obtaining
a copy of this software and associated documentation files (the
'Software'), to deal in the Software without restriction, including
without limitation the rights to use, copy, modify, merge, publish,
distribute, sublicense, and/or sell copies of the Software, and to
permit persons to whom the Software is furnished to do so, subject to
the following conditions:
The above copyright notice and this permission notice shall be
included in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND,
EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

View File

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# content-disposition
[![NPM Version][npm-image]][npm-url]
[![NPM Downloads][downloads-image]][downloads-url]
[![Node.js Version][node-version-image]][node-version-url]
[![Build Status][github-actions-ci-image]][github-actions-ci-url]
[![Test Coverage][coveralls-image]][coveralls-url]
Create and parse HTTP `Content-Disposition` header
## Installation
```sh
$ npm install content-disposition
```
## API
```js
var contentDisposition = require('content-disposition')
```
### contentDisposition(filename, options)
Create an attachment `Content-Disposition` header value using the given file name,
if supplied. The `filename` is optional and if no file name is desired, but you
want to specify `options`, set `filename` to `undefined`.
```js
res.setHeader('Content-Disposition', contentDisposition('∫ maths.pdf'))
```
**note** HTTP headers are of the ISO-8859-1 character set. If you are writing this
header through a means different from `setHeader` in Node.js, you'll want to specify
the `'binary'` encoding in Node.js.
#### Options
`contentDisposition` accepts these properties in the options object.
##### fallback
If the `filename` option is outside ISO-8859-1, then the file name is actually
stored in a supplemental field for clients that support Unicode file names and
a ISO-8859-1 version of the file name is automatically generated.
This specifies the ISO-8859-1 file name to override the automatic generation or
disables the generation all together, defaults to `true`.
- A string will specify the ISO-8859-1 file name to use in place of automatic
generation.
- `false` will disable including a ISO-8859-1 file name and only include the
Unicode version (unless the file name is already ISO-8859-1).
- `true` will enable automatic generation if the file name is outside ISO-8859-1.
If the `filename` option is ISO-8859-1 and this option is specified and has a
different value, then the `filename` option is encoded in the extended field
and this set as the fallback field, even though they are both ISO-8859-1.
##### type
Specifies the disposition type, defaults to `"attachment"`. This can also be
`"inline"`, or any other value (all values except inline are treated like
`attachment`, but can convey additional information if both parties agree to
it). The type is normalized to lower-case.
### contentDisposition.parse(string)
```js
var disposition = contentDisposition.parse('attachment; filename="EURO rates.txt"; filename*=UTF-8\'\'%e2%82%ac%20rates.txt')
```
Parse a `Content-Disposition` header string. This automatically handles extended
("Unicode") parameters by decoding them and providing them under the standard
parameter name. This will return an object with the following properties (examples
are shown for the string `'attachment; filename="EURO rates.txt"; filename*=UTF-8\'\'%e2%82%ac%20rates.txt'`):
- `type`: The disposition type (always lower case). Example: `'attachment'`
- `parameters`: An object of the parameters in the disposition (name of parameter
always lower case and extended versions replace non-extended versions). Example:
`{filename: "€ rates.txt"}`
## Examples
### Send a file for download
```js
var contentDisposition = require('content-disposition')
var destroy = require('destroy')
var fs = require('fs')
var http = require('http')
var onFinished = require('on-finished')
var filePath = '/path/to/public/plans.pdf'
http.createServer(function onRequest (req, res) {
// set headers
res.setHeader('Content-Type', 'application/pdf')
res.setHeader('Content-Disposition', contentDisposition(filePath))
// send file
var stream = fs.createReadStream(filePath)
stream.pipe(res)
onFinished(res, function () {
destroy(stream)
})
})
```
## Testing
```sh
$ npm test
```
## References
- [RFC 2616: Hypertext Transfer Protocol -- HTTP/1.1][rfc-2616]
- [RFC 5987: Character Set and Language Encoding for Hypertext Transfer Protocol (HTTP) Header Field Parameters][rfc-5987]
- [RFC 6266: Use of the Content-Disposition Header Field in the Hypertext Transfer Protocol (HTTP)][rfc-6266]
- [Test Cases for HTTP Content-Disposition header field (RFC 6266) and the Encodings defined in RFCs 2047, 2231 and 5987][tc-2231]
[rfc-2616]: https://tools.ietf.org/html/rfc2616
[rfc-5987]: https://tools.ietf.org/html/rfc5987
[rfc-6266]: https://tools.ietf.org/html/rfc6266
[tc-2231]: http://greenbytes.de/tech/tc2231/
## License
[MIT](LICENSE)
[npm-image]: https://img.shields.io/npm/v/content-disposition.svg
[npm-url]: https://npmjs.org/package/content-disposition
[node-version-image]: https://img.shields.io/node/v/content-disposition.svg
[node-version-url]: https://nodejs.org/en/download
[coveralls-image]: https://img.shields.io/coveralls/jshttp/content-disposition.svg
[coveralls-url]: https://coveralls.io/r/jshttp/content-disposition?branch=master
[downloads-image]: https://img.shields.io/npm/dm/content-disposition.svg
[downloads-url]: https://npmjs.org/package/content-disposition
[github-actions-ci-image]: https://img.shields.io/github/workflow/status/jshttp/content-disposition/ci/master?label=ci
[github-actions-ci-url]: https://github.com/jshttp/content-disposition?query=workflow%3Aci

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/*!
* content-disposition
* Copyright(c) 2014-2017 Douglas Christopher Wilson
* MIT Licensed
*/
'use strict'
/**
* Module exports.
* @public
*/
module.exports = contentDisposition
module.exports.parse = parse
/**
* Module dependencies.
* @private
*/
var basename = require('path').basename
var Buffer = require('safe-buffer').Buffer
/**
* RegExp to match non attr-char, *after* encodeURIComponent (i.e. not including "%")
* @private
*/
var ENCODE_URL_ATTR_CHAR_REGEXP = /[\x00-\x20"'()*,/:;<=>?@[\\\]{}\x7f]/g // eslint-disable-line no-control-regex
/**
* RegExp to match percent encoding escape.
* @private
*/
var HEX_ESCAPE_REGEXP = /%[0-9A-Fa-f]{2}/
var HEX_ESCAPE_REPLACE_REGEXP = /%([0-9A-Fa-f]{2})/g
/**
* RegExp to match non-latin1 characters.
* @private
*/
var NON_LATIN1_REGEXP = /[^\x20-\x7e\xa0-\xff]/g
/**
* RegExp to match quoted-pair in RFC 2616
*
* quoted-pair = "\" CHAR
* CHAR = <any US-ASCII character (octets 0 - 127)>
* @private
*/
var QESC_REGEXP = /\\([\u0000-\u007f])/g // eslint-disable-line no-control-regex
/**
* RegExp to match chars that must be quoted-pair in RFC 2616
* @private
*/
var QUOTE_REGEXP = /([\\"])/g
/**
* RegExp for various RFC 2616 grammar
*
* parameter = token "=" ( token | quoted-string )
* token = 1*<any CHAR except CTLs or separators>
* separators = "(" | ")" | "<" | ">" | "@"
* | "," | ";" | ":" | "\" | <">
* | "/" | "[" | "]" | "?" | "="
* | "{" | "}" | SP | HT
* quoted-string = ( <"> *(qdtext | quoted-pair ) <"> )
* qdtext = <any TEXT except <">>
* quoted-pair = "\" CHAR
* CHAR = <any US-ASCII character (octets 0 - 127)>
* TEXT = <any OCTET except CTLs, but including LWS>
* LWS = [CRLF] 1*( SP | HT )
* CRLF = CR LF
* CR = <US-ASCII CR, carriage return (13)>
* LF = <US-ASCII LF, linefeed (10)>
* SP = <US-ASCII SP, space (32)>
* HT = <US-ASCII HT, horizontal-tab (9)>
* CTL = <any US-ASCII control character (octets 0 - 31) and DEL (127)>
* OCTET = <any 8-bit sequence of data>
* @private
*/
var PARAM_REGEXP = /;[\x09\x20]*([!#$%&'*+.0-9A-Z^_`a-z|~-]+)[\x09\x20]*=[\x09\x20]*("(?:[\x20!\x23-\x5b\x5d-\x7e\x80-\xff]|\\[\x20-\x7e])*"|[!#$%&'*+.0-9A-Z^_`a-z|~-]+)[\x09\x20]*/g // eslint-disable-line no-control-regex
var TEXT_REGEXP = /^[\x20-\x7e\x80-\xff]+$/
var TOKEN_REGEXP = /^[!#$%&'*+.0-9A-Z^_`a-z|~-]+$/
/**
* RegExp for various RFC 5987 grammar
*
* ext-value = charset "'" [ language ] "'" value-chars
* charset = "UTF-8" / "ISO-8859-1" / mime-charset
* mime-charset = 1*mime-charsetc
* mime-charsetc = ALPHA / DIGIT
* / "!" / "#" / "$" / "%" / "&"
* / "+" / "-" / "^" / "_" / "`"
* / "{" / "}" / "~"
* language = ( 2*3ALPHA [ extlang ] )
* / 4ALPHA
* / 5*8ALPHA
* extlang = *3( "-" 3ALPHA )
* value-chars = *( pct-encoded / attr-char )
* pct-encoded = "%" HEXDIG HEXDIG
* attr-char = ALPHA / DIGIT
* / "!" / "#" / "$" / "&" / "+" / "-" / "."
* / "^" / "_" / "`" / "|" / "~"
* @private
*/
var EXT_VALUE_REGEXP = /^([A-Za-z0-9!#$%&+\-^_`{}~]+)'(?:[A-Za-z]{2,3}(?:-[A-Za-z]{3}){0,3}|[A-Za-z]{4,8}|)'((?:%[0-9A-Fa-f]{2}|[A-Za-z0-9!#$&+.^_`|~-])+)$/
/**
* RegExp for various RFC 6266 grammar
*
* disposition-type = "inline" | "attachment" | disp-ext-type
* disp-ext-type = token
* disposition-parm = filename-parm | disp-ext-parm
* filename-parm = "filename" "=" value
* | "filename*" "=" ext-value
* disp-ext-parm = token "=" value
* | ext-token "=" ext-value
* ext-token = <the characters in token, followed by "*">
* @private
*/
var DISPOSITION_TYPE_REGEXP = /^([!#$%&'*+.0-9A-Z^_`a-z|~-]+)[\x09\x20]*(?:$|;)/ // eslint-disable-line no-control-regex
/**
* Create an attachment Content-Disposition header.
*
* @param {string} [filename]
* @param {object} [options]
* @param {string} [options.type=attachment]
* @param {string|boolean} [options.fallback=true]
* @return {string}
* @public
*/
function contentDisposition (filename, options) {
var opts = options || {}
// get type
var type = opts.type || 'attachment'
// get parameters
var params = createparams(filename, opts.fallback)
// format into string
return format(new ContentDisposition(type, params))
}
/**
* Create parameters object from filename and fallback.
*
* @param {string} [filename]
* @param {string|boolean} [fallback=true]
* @return {object}
* @private
*/
function createparams (filename, fallback) {
if (filename === undefined) {
return
}
var params = {}
if (typeof filename !== 'string') {
throw new TypeError('filename must be a string')
}
// fallback defaults to true
if (fallback === undefined) {
fallback = true
}
if (typeof fallback !== 'string' && typeof fallback !== 'boolean') {
throw new TypeError('fallback must be a string or boolean')
}
if (typeof fallback === 'string' && NON_LATIN1_REGEXP.test(fallback)) {
throw new TypeError('fallback must be ISO-8859-1 string')
}
// restrict to file base name
var name = basename(filename)
// determine if name is suitable for quoted string
var isQuotedString = TEXT_REGEXP.test(name)
// generate fallback name
var fallbackName = typeof fallback !== 'string'
? fallback && getlatin1(name)
: basename(fallback)
var hasFallback = typeof fallbackName === 'string' && fallbackName !== name
// set extended filename parameter
if (hasFallback || !isQuotedString || HEX_ESCAPE_REGEXP.test(name)) {
params['filename*'] = name
}
// set filename parameter
if (isQuotedString || hasFallback) {
params.filename = hasFallback
? fallbackName
: name
}
return params
}
/**
* Format object to Content-Disposition header.
*
* @param {object} obj
* @param {string} obj.type
* @param {object} [obj.parameters]
* @return {string}
* @private
*/
function format (obj) {
var parameters = obj.parameters
var type = obj.type
if (!type || typeof type !== 'string' || !TOKEN_REGEXP.test(type)) {
throw new TypeError('invalid type')
}
// start with normalized type
var string = String(type).toLowerCase()
// append parameters
if (parameters && typeof parameters === 'object') {
var param
var params = Object.keys(parameters).sort()
for (var i = 0; i < params.length; i++) {
param = params[i]
var val = param.slice(-1) === '*'
? ustring(parameters[param])
: qstring(parameters[param])
string += '; ' + param + '=' + val
}
}
return string
}
/**
* Decode a RFC 5987 field value (gracefully).
*
* @param {string} str
* @return {string}
* @private
*/
function decodefield (str) {
var match = EXT_VALUE_REGEXP.exec(str)
if (!match) {
throw new TypeError('invalid extended field value')
}
var charset = match[1].toLowerCase()
var encoded = match[2]
var value
// to binary string
var binary = encoded.replace(HEX_ESCAPE_REPLACE_REGEXP, pdecode)
switch (charset) {
case 'iso-8859-1':
value = getlatin1(binary)
break
case 'utf-8':
case 'utf8':
value = Buffer.from(binary, 'binary').toString('utf8')
break
default:
throw new TypeError('unsupported charset in extended field')
}
return value
}
/**
* Get ISO-8859-1 version of string.
*
* @param {string} val
* @return {string}
* @private
*/
function getlatin1 (val) {
// simple Unicode -> ISO-8859-1 transformation
return String(val).replace(NON_LATIN1_REGEXP, '?')
}
/**
* Parse Content-Disposition header string.
*
* @param {string} string
* @return {object}
* @public
*/
function parse (string) {
if (!string || typeof string !== 'string') {
throw new TypeError('argument string is required')
}
var match = DISPOSITION_TYPE_REGEXP.exec(string)
if (!match) {
throw new TypeError('invalid type format')
}
// normalize type
var index = match[0].length
var type = match[1].toLowerCase()
var key
var names = []
var params = {}
var value
// calculate index to start at
index = PARAM_REGEXP.lastIndex = match[0].slice(-1) === ';'
? index - 1
: index
// match parameters
while ((match = PARAM_REGEXP.exec(string))) {
if (match.index !== index) {
throw new TypeError('invalid parameter format')
}
index += match[0].length
key = match[1].toLowerCase()
value = match[2]
if (names.indexOf(key) !== -1) {
throw new TypeError('invalid duplicate parameter')
}
names.push(key)
if (key.indexOf('*') + 1 === key.length) {
// decode extended value
key = key.slice(0, -1)
value = decodefield(value)
// overwrite existing value
params[key] = value
continue
}
if (typeof params[key] === 'string') {
continue
}
if (value[0] === '"') {
// remove quotes and escapes
value = value
.slice(1, -1)
.replace(QESC_REGEXP, '$1')
}
params[key] = value
}
if (index !== -1 && index !== string.length) {
throw new TypeError('invalid parameter format')
}
return new ContentDisposition(type, params)
}
/**
* Percent decode a single character.
*
* @param {string} str
* @param {string} hex
* @return {string}
* @private
*/
function pdecode (str, hex) {
return String.fromCharCode(parseInt(hex, 16))
}
/**
* Percent encode a single character.
*
* @param {string} char
* @return {string}
* @private
*/
function pencode (char) {
return '%' + String(char)
.charCodeAt(0)
.toString(16)
.toUpperCase()
}
/**
* Quote a string for HTTP.
*
* @param {string} val
* @return {string}
* @private
*/
function qstring (val) {
var str = String(val)
return '"' + str.replace(QUOTE_REGEXP, '\\$1') + '"'
}
/**
* Encode a Unicode string for HTTP (RFC 5987).
*
* @param {string} val
* @return {string}
* @private
*/
function ustring (val) {
var str = String(val)
// percent encode as UTF-8
var encoded = encodeURIComponent(str)
.replace(ENCODE_URL_ATTR_CHAR_REGEXP, pencode)
return 'UTF-8\'\'' + encoded
}
/**
* Class for parsed Content-Disposition header for v8 optimization
*
* @public
* @param {string} type
* @param {object} parameters
* @constructor
*/
function ContentDisposition (type, parameters) {
this.type = type
this.parameters = parameters
}

View File

@@ -0,0 +1,44 @@
{
"name": "content-disposition",
"description": "Create and parse Content-Disposition header",
"version": "1.0.0",
"author": "Douglas Christopher Wilson <doug@somethingdoug.com>",
"license": "MIT",
"keywords": [
"content-disposition",
"http",
"rfc6266",
"res"
],
"repository": "jshttp/content-disposition",
"dependencies": {
"safe-buffer": "5.2.1"
},
"devDependencies": {
"deep-equal": "1.0.1",
"eslint": "7.32.0",
"eslint-config-standard": "13.0.1",
"eslint-plugin-import": "2.25.3",
"eslint-plugin-markdown": "2.2.1",
"eslint-plugin-node": "11.1.0",
"eslint-plugin-promise": "5.2.0",
"eslint-plugin-standard": "4.1.0",
"mocha": "^9.2.2",
"nyc": "15.1.0"
},
"files": [
"LICENSE",
"HISTORY.md",
"README.md",
"index.js"
],
"engines": {
"node": ">= 0.6"
},
"scripts": {
"lint": "eslint .",
"test": "mocha --reporter spec --bail --check-leaks test/",
"test-ci": "nyc --reporter=lcovonly --reporter=text npm test",
"test-cov": "nyc --reporter=html --reporter=text npm test"
}
}

View File

@@ -0,0 +1,29 @@
1.0.5 / 2023-01-29
==================
* perf: skip value escaping when unnecessary
1.0.4 / 2017-09-11
==================
* perf: skip parameter parsing when no parameters
1.0.3 / 2017-09-10
==================
* perf: remove argument reassignment
1.0.2 / 2016-05-09
==================
* perf: enable strict mode
1.0.1 / 2015-02-13
==================
* Improve missing `Content-Type` header error message
1.0.0 / 2015-02-01
==================
* Initial implementation, derived from `media-typer@0.3.0`

View File

@@ -0,0 +1,22 @@
(The MIT License)
Copyright (c) 2015 Douglas Christopher Wilson
Permission is hereby granted, free of charge, to any person obtaining
a copy of this software and associated documentation files (the
'Software'), to deal in the Software without restriction, including
without limitation the rights to use, copy, modify, merge, publish,
distribute, sublicense, and/or sell copies of the Software, and to
permit persons to whom the Software is furnished to do so, subject to
the following conditions:
The above copyright notice and this permission notice shall be
included in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND,
EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

View File

@@ -0,0 +1,94 @@
# content-type
[![NPM Version][npm-version-image]][npm-url]
[![NPM Downloads][npm-downloads-image]][npm-url]
[![Node.js Version][node-image]][node-url]
[![Build Status][ci-image]][ci-url]
[![Coverage Status][coveralls-image]][coveralls-url]
Create and parse HTTP Content-Type header according to RFC 7231
## Installation
```sh
$ npm install content-type
```
## API
```js
var contentType = require('content-type')
```
### contentType.parse(string)
```js
var obj = contentType.parse('image/svg+xml; charset=utf-8')
```
Parse a `Content-Type` header. This will return an object with the following
properties (examples are shown for the string `'image/svg+xml; charset=utf-8'`):
- `type`: The media type (the type and subtype, always lower case).
Example: `'image/svg+xml'`
- `parameters`: An object of the parameters in the media type (name of parameter
always lower case). Example: `{charset: 'utf-8'}`
Throws a `TypeError` if the string is missing or invalid.
### contentType.parse(req)
```js
var obj = contentType.parse(req)
```
Parse the `Content-Type` header from the given `req`. Short-cut for
`contentType.parse(req.headers['content-type'])`.
Throws a `TypeError` if the `Content-Type` header is missing or invalid.
### contentType.parse(res)
```js
var obj = contentType.parse(res)
```
Parse the `Content-Type` header set on the given `res`. Short-cut for
`contentType.parse(res.getHeader('content-type'))`.
Throws a `TypeError` if the `Content-Type` header is missing or invalid.
### contentType.format(obj)
```js
var str = contentType.format({
type: 'image/svg+xml',
parameters: { charset: 'utf-8' }
})
```
Format an object into a `Content-Type` header. This will return a string of the
content type for the given object with the following properties (examples are
shown that produce the string `'image/svg+xml; charset=utf-8'`):
- `type`: The media type (will be lower-cased). Example: `'image/svg+xml'`
- `parameters`: An object of the parameters in the media type (name of the
parameter will be lower-cased). Example: `{charset: 'utf-8'}`
Throws a `TypeError` if the object contains an invalid type or parameter names.
## License
[MIT](LICENSE)
[ci-image]: https://badgen.net/github/checks/jshttp/content-type/master?label=ci
[ci-url]: https://github.com/jshttp/content-type/actions/workflows/ci.yml
[coveralls-image]: https://badgen.net/coveralls/c/github/jshttp/content-type/master
[coveralls-url]: https://coveralls.io/r/jshttp/content-type?branch=master
[node-image]: https://badgen.net/npm/node/content-type
[node-url]: https://nodejs.org/en/download
[npm-downloads-image]: https://badgen.net/npm/dm/content-type
[npm-url]: https://npmjs.org/package/content-type
[npm-version-image]: https://badgen.net/npm/v/content-type

View File

@@ -0,0 +1,225 @@
/*!
* content-type
* Copyright(c) 2015 Douglas Christopher Wilson
* MIT Licensed
*/
'use strict'
/**
* RegExp to match *( ";" parameter ) in RFC 7231 sec 3.1.1.1
*
* parameter = token "=" ( token / quoted-string )
* token = 1*tchar
* tchar = "!" / "#" / "$" / "%" / "&" / "'" / "*"
* / "+" / "-" / "." / "^" / "_" / "`" / "|" / "~"
* / DIGIT / ALPHA
* ; any VCHAR, except delimiters
* quoted-string = DQUOTE *( qdtext / quoted-pair ) DQUOTE
* qdtext = HTAB / SP / %x21 / %x23-5B / %x5D-7E / obs-text
* obs-text = %x80-FF
* quoted-pair = "\" ( HTAB / SP / VCHAR / obs-text )
*/
var PARAM_REGEXP = /; *([!#$%&'*+.^_`|~0-9A-Za-z-]+) *= *("(?:[\u000b\u0020\u0021\u0023-\u005b\u005d-\u007e\u0080-\u00ff]|\\[\u000b\u0020-\u00ff])*"|[!#$%&'*+.^_`|~0-9A-Za-z-]+) */g // eslint-disable-line no-control-regex
var TEXT_REGEXP = /^[\u000b\u0020-\u007e\u0080-\u00ff]+$/ // eslint-disable-line no-control-regex
var TOKEN_REGEXP = /^[!#$%&'*+.^_`|~0-9A-Za-z-]+$/
/**
* RegExp to match quoted-pair in RFC 7230 sec 3.2.6
*
* quoted-pair = "\" ( HTAB / SP / VCHAR / obs-text )
* obs-text = %x80-FF
*/
var QESC_REGEXP = /\\([\u000b\u0020-\u00ff])/g // eslint-disable-line no-control-regex
/**
* RegExp to match chars that must be quoted-pair in RFC 7230 sec 3.2.6
*/
var QUOTE_REGEXP = /([\\"])/g
/**
* RegExp to match type in RFC 7231 sec 3.1.1.1
*
* media-type = type "/" subtype
* type = token
* subtype = token
*/
var TYPE_REGEXP = /^[!#$%&'*+.^_`|~0-9A-Za-z-]+\/[!#$%&'*+.^_`|~0-9A-Za-z-]+$/
/**
* Module exports.
* @public
*/
exports.format = format
exports.parse = parse
/**
* Format object to media type.
*
* @param {object} obj
* @return {string}
* @public
*/
function format (obj) {
if (!obj || typeof obj !== 'object') {
throw new TypeError('argument obj is required')
}
var parameters = obj.parameters
var type = obj.type
if (!type || !TYPE_REGEXP.test(type)) {
throw new TypeError('invalid type')
}
var string = type
// append parameters
if (parameters && typeof parameters === 'object') {
var param
var params = Object.keys(parameters).sort()
for (var i = 0; i < params.length; i++) {
param = params[i]
if (!TOKEN_REGEXP.test(param)) {
throw new TypeError('invalid parameter name')
}
string += '; ' + param + '=' + qstring(parameters[param])
}
}
return string
}
/**
* Parse media type to object.
*
* @param {string|object} string
* @return {Object}
* @public
*/
function parse (string) {
if (!string) {
throw new TypeError('argument string is required')
}
// support req/res-like objects as argument
var header = typeof string === 'object'
? getcontenttype(string)
: string
if (typeof header !== 'string') {
throw new TypeError('argument string is required to be a string')
}
var index = header.indexOf(';')
var type = index !== -1
? header.slice(0, index).trim()
: header.trim()
if (!TYPE_REGEXP.test(type)) {
throw new TypeError('invalid media type')
}
var obj = new ContentType(type.toLowerCase())
// parse parameters
if (index !== -1) {
var key
var match
var value
PARAM_REGEXP.lastIndex = index
while ((match = PARAM_REGEXP.exec(header))) {
if (match.index !== index) {
throw new TypeError('invalid parameter format')
}
index += match[0].length
key = match[1].toLowerCase()
value = match[2]
if (value.charCodeAt(0) === 0x22 /* " */) {
// remove quotes
value = value.slice(1, -1)
// remove escapes
if (value.indexOf('\\') !== -1) {
value = value.replace(QESC_REGEXP, '$1')
}
}
obj.parameters[key] = value
}
if (index !== header.length) {
throw new TypeError('invalid parameter format')
}
}
return obj
}
/**
* Get content-type from req/res objects.
*
* @param {object}
* @return {Object}
* @private
*/
function getcontenttype (obj) {
var header
if (typeof obj.getHeader === 'function') {
// res-like
header = obj.getHeader('content-type')
} else if (typeof obj.headers === 'object') {
// req-like
header = obj.headers && obj.headers['content-type']
}
if (typeof header !== 'string') {
throw new TypeError('content-type header is missing from object')
}
return header
}
/**
* Quote a string if necessary.
*
* @param {string} val
* @return {string}
* @private
*/
function qstring (val) {
var str = String(val)
// no need to quote tokens
if (TOKEN_REGEXP.test(str)) {
return str
}
if (str.length > 0 && !TEXT_REGEXP.test(str)) {
throw new TypeError('invalid parameter value')
}
return '"' + str.replace(QUOTE_REGEXP, '\\$1') + '"'
}
/**
* Class to represent a content type.
* @private
*/
function ContentType (type) {
this.parameters = Object.create(null)
this.type = type
}

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@@ -0,0 +1,42 @@
{
"name": "content-type",
"description": "Create and parse HTTP Content-Type header",
"version": "1.0.5",
"author": "Douglas Christopher Wilson <doug@somethingdoug.com>",
"license": "MIT",
"keywords": [
"content-type",
"http",
"req",
"res",
"rfc7231"
],
"repository": "jshttp/content-type",
"devDependencies": {
"deep-equal": "1.0.1",
"eslint": "8.32.0",
"eslint-config-standard": "15.0.1",
"eslint-plugin-import": "2.27.5",
"eslint-plugin-node": "11.1.0",
"eslint-plugin-promise": "6.1.1",
"eslint-plugin-standard": "4.1.0",
"mocha": "10.2.0",
"nyc": "15.1.0"
},
"files": [
"LICENSE",
"HISTORY.md",
"README.md",
"index.js"
],
"engines": {
"node": ">= 0.6"
},
"scripts": {
"lint": "eslint .",
"test": "mocha --reporter spec --check-leaks --bail test/",
"test-ci": "nyc --reporter=lcovonly --reporter=text npm test",
"test-cov": "nyc --reporter=html --reporter=text npm test",
"version": "node scripts/version-history.js && git add HISTORY.md"
}
}

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