75bc30bb8e
Implement parsing, evaluation, lexical this capture, and new rejection for arrow functions. Covers expression bodies, block bodies, zero/single/ multi-param forms, and backtracking disambiguation from grouping parens. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
18 lines
480 B
JavaScript
18 lines
480 B
JavaScript
// Arrow functions can be immediately invoked (IIFE pattern).
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// Basic IIFE: no params.
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console.log((() => 42)());
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// IIFE with a single param.
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console.log((x => x * 2)(6));
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// IIFE with multiple params.
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console.log(((a, b) => a + b)(3, 4));
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// IIFE with a block body and explicit return.
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console.log(((x) => { return x * x; })(5));
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// Nested IIFE: inner arrow is immediately invoked inside outer arrow body.
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var result = ((a) => ((b) => a + b)(10))(5);
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console.log(result);
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