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perf(parser): tokens raw deserialization use Int32Array (#21137)

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Continuation of #21132. Use `Int32Array` view of the buffer for tokens deserialization in `oxc-parser`.
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overlookmotel committed 2026-04-07 23:14:36 +00:00
1 parent 7a866138d1
commit f163d10859
1 file changed
+6 -6
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napi/parser/src-js/raw-transfer/eager.js
+6 -6
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@@ -175,10 +175,10 @@ const IS_ESCAPED_FIELD_OFFSET = 10;
* @returns {Object[]} - Array of token objects
*/
function deserializeTokens(buffer, sourceText, isJs) {
const { uint32 } = buffer;
const { int32 } = buffer;
let pos = uint32[TOKENS_OFFSET_POS_32];
const len = uint32[TOKENS_LEN_POS_32];
let pos = int32[TOKENS_OFFSET_POS_32];
const len = int32[TOKENS_LEN_POS_32];
const endPos = pos + len * TOKEN_SIZE;
const tokens = [];
@@ -198,11 +198,11 @@ function deserializeTokens(buffer, sourceText, isJs) {
* @returns {Object} - Token object
*/
function deserializeToken(pos, buffer, sourceText, isJs) {
const { uint32 } = buffer;
const { int32 } = buffer;
const pos32 = pos >> 2;
const start = uint32[pos32],
end = uint32[pos32 + 1];
const start = int32[pos32],
end = int32[pos32 + 1];
let value = sourceText.slice(start, end);