ladybird/Tests/LibJS/Bytecode/input/for-loop-scoping.js

function forLetClosure() {
    let fns = [];
    for (let i = 0; i < 3; i++) {
        fns.push(() => i);
    }
    return fns.map(f => f());
}
console.log(forLetClosure());
LibJS: Replace implicit environment stack with explicit registers Replace the saved_lexical_environments stack in ExecutionContextRareData with explicit register-based environment tracking. Environments are now stored in registers and restored via SetLexicalEnvironment, making the environment flow visible in bytecode. Key changes: - Add GetLexicalEnvironment and SetLexicalEnvironment opcodes - CreateLexicalEnvironment takes explicit parent and dst operands - EnterObjectEnvironment stores new environment in a dst register - NewClass takes an explicit class_environment operand - Remove LeaveLexicalEnvironment opcode (instead: SetLexicalEnvironment) - Remove saved_lexical_environments from ExecutionContextRareData - Use a reserved register for the saved lexical environment to avoid dominance issues with lazily-emitted GetLexicalEnvironment 2026-02-08 23:34:42 -03:00			`function forLetClosure() {`
			`let fns = [];`
			`for (let i = 0; i < 3; i++) {`
			`fns.push(() => i);`
			`}`
			`return fns.map(f => f());`
			`}`
			`console.log(forLetClosure());`