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jsutil: Bug fix: byteLenght must be accessed every time to get the latest value

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Hajime Hoshi 2020-12-26 17:04:12 +09:00
parent 111709d3aa
commit 3d48922d8c
1 changed files with 6 additions and 12 deletions
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12
internal/jsutil/buf_js.go
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@ -29,33 +29,27 @@ var (
// The read data is converted to Go's byte slice as soon as possible. // The read data is converted to Go's byte slice as soon as possible.
// To avoid often allocating ArrayBuffer, reuse the buffer whenever possible. // To avoid often allocating ArrayBuffer, reuse the buffer whenever possible.
temporaryArrayBuffer = arrayBuffer.New(16) temporaryArrayBuffer = arrayBuffer.New(16)
temporaryArrayBufferByteLength = temporaryArrayBuffer.Get("byteLength")
// temporaryUint8Array is a Uint8ArrayBuffer whose underlying buffer is always temporaryArrayBuffer. // temporaryUint8Array is a Uint8ArrayBuffer whose underlying buffer is always temporaryArrayBuffer.
temporaryUint8Array = uint8Array.New(temporaryArrayBuffer) temporaryUint8Array = uint8Array.New(temporaryArrayBuffer)
temporaryUint8ArrayByteLength = temporaryUint8Array.Get("byteLength")
// temporaryFloat32Array is a Float32ArrayBuffer whose underlying buffer is always temporaryArrayBuffer. // temporaryFloat32Array is a Float32ArrayBuffer whose underlying buffer is always temporaryArrayBuffer.
temporaryFloat32Array = float32Array.New(temporaryArrayBuffer) temporaryFloat32Array = float32Array.New(temporaryArrayBuffer)
temporaryFloat32ArrayByteLength = temporaryFloat32Array.Get("byteLength")
) )
func ensureTemporaryArrayBufferSize(byteLength int) { func ensureTemporaryArrayBufferSize(byteLength int) {
bufl := temporaryArrayBufferByteLength.Int() bufl := temporaryArrayBuffer.Get("byteLength").Int()
if bufl < byteLength { if bufl < byteLength {
for bufl < byteLength { for bufl < byteLength {
bufl *= 2 bufl *= 2
} }
temporaryArrayBuffer = arrayBuffer.New(bufl) temporaryArrayBuffer = arrayBuffer.New(bufl)
temporaryArrayBufferByteLength = temporaryArrayBuffer.Get("byteLength")
} }
if temporaryUint8ArrayByteLength.Int() < bufl { if temporaryUint8Array.Get("byteLength").Int() < bufl {
temporaryUint8Array = uint8Array.New(temporaryArrayBuffer) temporaryUint8Array = uint8Array.New(temporaryArrayBuffer)
temporaryUint8ArrayByteLength = temporaryUint8Array.Get("byteLength")
} }
if temporaryFloat32ArrayByteLength.Int() < bufl { if temporaryFloat32Array.Get("byteLength").Int() < bufl {
temporaryFloat32Array = float32Array.New(temporaryArrayBuffer) temporaryFloat32Array = float32Array.New(temporaryArrayBuffer)
temporaryFloat32ArrayByteLength = temporaryFloat32Array.Get("byteLength")
} }
} }