35 lines
998 B
JavaScript
35 lines
998 B
JavaScript
import Benchmark from "benchmark";
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import baseline from "@babel-baseline/parser";
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import current from "@babel/parser";
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import { report } from "../../util.mjs";
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const suite = new Benchmark.Suite();
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// All codepoints in [0x4e00, 0x9ffc] are valid identifier name per Unicode 13
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function createInput(length) {
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if (length > 0x9ffc - 0x4e00) {
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throw new Error(
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`Length greater than ${
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0x9ffc - 0x4e00
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} is not supported! Consider modify the \`createInput\`.`
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);
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}
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let source = "";
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for (let i = 0; i < length; i++) {
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source += "let " + String.fromCharCode(0x4e00 + i) + ";";
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}
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return source;
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}
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function benchCases(name, implementation, options) {
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for (const length of [256, 512, 1024, 2048]) {
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const input = createInput(length);
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suite.add(`${name} ${length} length-1 let bindings`, () => {
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implementation.parse(input, options);
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});
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}
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}
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benchCases("baseline", baseline);
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benchCases("current", current);
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suite.on("cycle", report).run();
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