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wip Buffer.fill

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This commit is contained in:
Jarred Sumner
2022-05-01 07:41:26 -07:00
parent de23f2f8aa
commit 3403621fc2
3 changed files with 167 additions and 95 deletions
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1
src/javascript/jsc/bindings/Buffer.h
View File

@@ -19,6 +19,7 @@ extern "C" JSC::EncodedJSValue Bun__encoding__toStringLatin1(const uint8_t* inpu
extern "C" JSC::EncodedJSValue Bun__encoding__toStringHex(const uint8_t* input, size_t len, JSC::JSGlobalObject* globalObject);
extern "C" JSC::EncodedJSValue Bun__encoding__toStringBase64(const uint8_t* input, size_t len, JSC::JSGlobalObject* globalObject);
extern "C" JSC::EncodedJSValue Bun__encoding__toStringURLSafeBase64(const uint8_t* input, size_t len, JSC::JSGlobalObject* globalObject);
extern "C" void Bun__Buffer_fill(JSC::JSGlobalObject*, Bun__ArrayBuffer*, ZigString*, uint32_t, uint32_t, WebCore::BufferEncodingType);
namespace WebCore {

95
src/javascript/jsc/bindings/JSBuffer.cpp
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@@ -798,7 +798,100 @@ static inline JSC::EncodedJSValue jsBufferPrototypeFunction_fillBody(JSC::JSGlob
{
auto& vm = JSC::getVM(lexicalGlobalObject);
return JSC::JSValue::encode(jsUndefined());
if (callFrame->argumentCount() < 1) {
return JSValue::encode(castedThis);
}
auto value = callFrame->uncheckedArgument(0);
if (!value.isString()) {
auto value_ = value.toInt32() & 0xFF;
auto value_uint8 = static_cast<uint8_t>(value_);
auto length = castedThis->byteLength();
auto start = 0;
auto end = length;
if (callFrame->argumentCount() > 1) {
if (auto start_ = callFrame->uncheckedArgument(1).tryGetAsUint32Index()) {
start = start_.value();
} else {
return throwVMError(lexicalGlobalObject, JSC::throwScope, createRangeError(lexicalGlobalObject, "start out of range"_s));
}
if (callFrame->argumentCount() > 2) {
if (auto end_ = callFrame->uncheckedArgument(2).tryGetAsUint32Index()) {
end = end_.value();
} else {
return throwVMError(lexicalGlobalObject, JSC::throwScope, createRangeError(lexicalGlobalObject, "end out of range"_s));
}
}
}
if (start > end) {
return throwVMError(lexicalGlobalObject, JSC::throwScope, createRangeError(lexicalGlobalObject, "start out of range"_s));
}
if (end > length) {
return throwVMError(lexicalGlobalObject, JSC::throwScope, createRangeError(lexicalGlobalObject, "end out of range"_s));
}
auto startPtr = castedThis->typedVector() + start;
auto endPtr = castedThis->typedVector() + end;
memset(startPtr, value_uint8, endPtr - startPtr);
return JSValue::encode(castedThis);
}
{
EnsureStillAliveScope value_ = callFrame->argument(0);
unsigned int length = castedThis->byteLength();
unsigned int start = 0;
unsigned int end = length;
WebCore::BufferEncodingType encoding = WebCore::BufferEncodingType::utf8;
if (callFrame->argumentCount() > 1) {
if (auto start_ = callFrame->uncheckedArgument(1).tryGetAsUint32Index()) {
start = start_.value();
} else {
throwVMError(lexicalGlobalObject, JSC::throwScope, createRangeError(lexicalGlobalObject, "start out of range"_s));
return JSC::JSValue::encode(jsUndefined());
}
if (callFrame->argumentCount() > 2) {
if (auto end_ = callFrame->uncheckedArgument(2).tryGetAsUint32Index()) {
end = end_.value();
} else {
throwVMError(lexicalGlobalObject, JSC::throwScope, createRangeError(lexicalGlobalObject, "end out of range"_s));
return JSC::JSValue::encode(jsUndefined());
}
}
if (callFrame->argumentCount() > 3) {
auto encoding_ = callFrame->uncheckedArgument(3).toString(lexicalGlobalObject);
std::optional<BufferEncodingType> encoded = parseEnumeration<BufferEncodingType>(*lexicalGlobalObject, arg1.value());
if (!encoded) {
throwTypeError(lexicalGlobalObject, scope, "Invalid encoding");
return JSC::JSValue::encode(jsUndefined());
}
encoding = encoded.value();
}
}
if (start > end) {
throwVMError(lexicalGlobalObject, JSC::throwScope, createRangeError(lexicalGlobalObject, "start out of range"_s));
return JSC::JSValue::encode(jsUndefined());
}
if (end > length) {
throwVMError(lexicalGlobalObject, JSC::throwScope, createRangeError(lexicalGlobalObject, "end out of range"_s));
return JSC::JSValue::encode(jsUndefined());
}
auto startPtr = castedThis->typedVector() + start;
ZigString str = Zig::toString(value.toString(lexicalGlobalObject));
Bun__ArrayBuffer buf;
JSC__JSValue__asArrayBuffer_(JSC::JSValue::encode(castedThis), lexicalGlobalObject,
&buf);
Bun__Buffer_fill(lexicalGlobalObject, &buf, &str, start, end, encoding);
return JSValue::encode(castedThis);
}
}
static inline JSC::EncodedJSValue jsBufferPrototypeFunction_includesBody(JSC::JSGlobalObject* lexicalGlobalObject, JSC::CallFrame* callFrame, typename IDLOperation<JSBuffer>::ClassParameter castedThis)
{

166
src/javascript/jsc/node/buffer.zig
View File

@@ -13,104 +13,82 @@ const os = std.os;
const JSGlobalObject = JSC.JSGlobalObject;
const ArgumentsSlice = JSC.Node.ArgumentsSlice;
/// These functions are called in JSBuffer.cpp
/// `CALL_WRITE_FN` is the macro which ultimately calls it
pub const Write = struct {
pub export fn Bun__Buffer__write__BigInt64BE(input: [*]u8, value: i64) void {
std.mem.writeIntBig(i64, input[0..8], value);
}
pub export fn Bun__Buffer__write__BigInt64LE(input: [*]u8, value: i64) void {
std.mem.writeIntLittle(i64, input[0..8], value);
}
pub export fn Bun__Buffer__write__BigUInt64BE(input: [*]u8, value: u64) void {
std.mem.writeIntBig(u64, input[0..8], value);
}
pub export fn Bun__Buffer__write__BigUInt64LE(input: [*]u8, value: u64) void {
std.mem.writeIntLittle(u64, input[0..8], value);
}
pub export fn Bun__Buffer__write__DoubleBE(input: [*]u8, value: f64) void {
std.mem.writeIntBig(u64, input[0..8], @bitCast(u64, value));
}
pub export fn Bun__Buffer__write__DoubleLE(input: [*]u8, value: f64) void {
std.mem.writeIntLittle(u64, input[0..8], @bitCast(u64, value));
}
pub export fn Bun__Buffer__write__FloatBE(input: [*]u8, value: f64) void {
std.mem.writeIntBig(i32, input[0..4], @bitCast(i32, @floatCast(f32, value)));
}
pub export fn Bun__Buffer__write__FloatLE(input: [*]u8, value: f64) void {
std.mem.writeIntLittle(i32, input[0..4], @bitCast(i32, @floatCast(f32, value)));
}
pub export fn Bun__Buffer__write__Int16BE(input: [*]u8, value: i32) void {
std.mem.writeIntBig(i16, input[0..2], @intCast(i16, value));
}
pub export fn Bun__Buffer__write__Int16LE(input: [*]u8, value: i32) void {
std.mem.writeIntLittle(i16, input[0..2], @intCast(i16, value));
}
pub export fn Bun__Buffer__write__Int32BE(input: [*]u8, value: i32) void {
std.mem.writeIntBig(i32, input[0..4], value);
}
pub export fn Bun__Buffer__write__Int32LE(input: [*]u8, value: i32) void {
std.mem.writeIntLittle(i32, input[0..4], value);
}
pub export fn Bun__Buffer__write__Int64LE(input: [*]u8, value: i64) void {
std.mem.writeIntLittle(i64, input[0..8], value);
}
pub export fn Bun__Buffer__write__Int8(input: [*]u8, value: i32) void {
std.mem.writeIntNative(i8, input[0..1], @truncate(i8, value));
}
pub export fn Bun__Buffer__write__Int8LE(input: [*]u8, value: i32) void {
std.mem.writeIntLittle(i8, input[0..1], @truncate(i8, value));
}
pub export fn Bun__Buffer__write__UInt16BE(input: [*]u8, value: i32) void {
std.mem.writeIntBig(u16, input[0..2], @truncate(u16, @bitCast(u32, value)));
}
pub export fn Bun__Buffer__write__UInt16LE(input: [*]u8, value: i32) void {
std.mem.writeIntLittle(u16, input[0..2], @truncate(u16, @bitCast(u32, value)));
}
pub export fn Bun__Buffer__write__UInt32BE(input: [*]u8, value: i32) void {
std.mem.writeIntBig(u32, input[0..4], @bitCast(u32, value));
}
pub export fn Bun__Buffer__write__UInt32LE(input: [*]u8, value: i32) void {
std.mem.writeIntLittle(u32, input[0..4], @bitCast(u32, value));
}
pub export fn Bun__Buffer__write__UInt64BE(input: [*]u8, value: u64) void {
std.mem.writeIntBig(u64, input[0..8], value);
}
pub export fn Bun__Buffer__write__UInt64LE(input: [*]u8, value: u64) void {
std.mem.writeIntLittle(u64, input[0..8], value);
}
pub export fn Bun__Buffer__write__UInt8BE(input: [*]u8, value: i32) void {
std.mem.writeIntBig(u8, input[0..1], @bitCast(u8, @truncate(i8, value)));
}
pub export fn Bun__Buffer__write__UInt8LE(input: [*]u8, value: i32) void {
std.mem.writeIntLittle(u8, input[0..1], @bitCast(u8, @truncate(i8, value)));
pub const BufferVectorized = struct {
extern fn memset_pattern16(b: *anyopaque, pattern16: *const anyopaque, len: usize) void;
pub fn fill(
globalObject: *JSGlobalObject,
this: *JSC.ArrayBuffer,
str: *JSC.ZigString,
start: u32,
end: u32,
encoding: JSC.Node.Encoding,
) callconv(.C) void {
const allocator = JSC.VirtualMachine.vm.allocator;
var stack_fallback = std.heap.stackFallback(512, allocator);
var stack_fallback_allocator = stack_fallback.get();
var input_string = str.toSlice(stack_fallback_allocator);
if (input_string.len == 0) return;
defer input_string.deinit();
var buf = this.slice()[start..end];
var slice = input_string.slice();
switch (encoding) {
JSC.Node.Encoding.utf8,
JSC.Node.Encoding.ascii,
JSC.Node.Encoding.latin1,
JSC.Node.Encoding.buffer,
=> {
switch (slice.len) {
0 => unreachable,
1 => {
@memset(buf.ptr, slice[0], 1);
return;
},
2...16 => {
if (comptime Environment.isMac) {
var pattern: [16]u8 = undefined;
var remain: []u8 = pattern[0..];
while (remain.len > 0) {
for (slice[0..]) |a| {
remain[0] = a;
remain = remain[1..];
}
}
memset_pattern16(buf.ptr, &pattern, buf.len);
return;
}
},
else => {},
}
var in_there = @minimum(slice.len, buf.len);
@memcpy(buf.ptr, slice.ptr, in_there);
if (in_there < slice.len) {
return;
}
// var ptr = buf.ptr + @as(usize, start) + slice.len;
// const fill_length = @as(usize, end) - @as(usize, start);
// // while (in_there < fill_length - in_there) {
// // std.mem.copy(ptr)
// // ptr += in_there;
// // in_there *= 2;
// // }
},
else => {},
}
}
};
comptime {
if (!JSC.is_bindgen) {
_ = Write.Bun__Buffer__write__BigInt64BE;
_ = Write.Bun__Buffer__write__BigInt64LE;
_ = Write.Bun__Buffer__write__BigUInt64BE;
_ = Write.Bun__Buffer__write__BigUInt64LE;
_ = Write.Bun__Buffer__write__DoubleBE;
_ = Write.Bun__Buffer__write__DoubleLE;
_ = Write.Bun__Buffer__write__FloatBE;
_ = Write.Bun__Buffer__write__FloatLE;
_ = Write.Bun__Buffer__write__Int16BE;
_ = Write.Bun__Buffer__write__Int16LE;
_ = Write.Bun__Buffer__write__Int32BE;
_ = Write.Bun__Buffer__write__Int32LE;
_ = Write.Bun__Buffer__write__Int64LE;
_ = Write.Bun__Buffer__write__Int8;
_ = Write.Bun__Buffer__write__Int8LE;
_ = Write.Bun__Buffer__write__UInt16BE;
_ = Write.Bun__Buffer__write__UInt16LE;
_ = Write.Bun__Buffer__write__UInt32BE;
_ = Write.Bun__Buffer__write__UInt32LE;
_ = Write.Bun__Buffer__write__UInt64BE;
_ = Write.Bun__Buffer__write__UInt64LE;
_ = Write.Bun__Buffer__write__UInt8BE;
_ = Write.Bun__Buffer__write__UInt8LE;
@export(BufferVectorized, .{ .name = "Bun__Buffer__fill" });
}
}