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Uint8ClampedArray: implement .copy variant

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Halil Durak
2026-02-15 12:12:45 +03:00
parent 119f3169e2
commit 26ce9b2d4a
1 changed files with 16 additions and 0 deletions
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16
src/browser/js/js.zig
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@@ -223,6 +223,22 @@ pub fn simpleZigValueToJs(isolate: Isolate, value: anytype, comptime fail: bool,
}
return @ptrCast(v8.v8__Uint8ClampedArray__New(array_buffer, 0, len));
},
Uint8ClampedArray(.copy) => {
const values = value.values;
const len = values.len;
var array_buffer: *const v8.ArrayBuffer = undefined;
if (len == 0) {
array_buffer = v8.v8__ArrayBuffer__New(isolate.handle, 0).?;
} else {
const backing_store = v8.v8__ArrayBuffer__NewBackingStore(isolate.handle, len);
const data: [*]u8 = @ptrCast(@alignCast(v8.v8__BackingStore__Data(backing_store)));
@memcpy(data[0..len], @as([]const u8, @ptrCast(values))[0..len]);
const backing_store_ptr = v8.v8__BackingStore__TO_SHARED_PTR(backing_store);
// Attach store to array buffer.
array_buffer = v8.v8__ArrayBuffer__New2(isolate.handle, &backing_store_ptr).?;
}
return @ptrCast(v8.v8__Uint8ClampedArray__New(array_buffer, 0, len));
},
inline String, BigInt, Integer, Number, Value, Object => return value.handle,
else => {},
}