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74f133293d
Instead of creating a second ExecutionContext in BoundFunction.[[Call]], we now implement BoundFunction::get_stack_frame_size() and combine information from the target + the bound arguments list. This allows BoundFunction.[[Call]] to reuse the already-established ExecutionContext for the callee. 1.20x speedup on MicroBench/bound-call-04-args.js
17 lines
540 B
JavaScript
17 lines
540 B
JavaScript
test("Some function.bind cases", () => {
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function collectArguments() {
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let a = [];
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for (let i = 0; i < arguments.length; ++i) a.push(arguments[i]);
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return a;
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}
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let b = collectArguments.bind(null);
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expect(b()).toEqual([]);
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expect(b(3, 4)).toEqual([3, 4]);
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expect(b(3, 4, 5, 6)).toEqual([3, 4, 5, 6]);
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let b12 = collectArguments.bind(null, 1, 2);
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expect(b12()).toEqual([1, 2]);
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expect(b12(3, 4)).toEqual([1, 2, 3, 4]);
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expect(b12(3, 4, 5, 6)).toEqual([1, 2, 3, 4, 5, 6]);
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});
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