mirror of
https://github.com/LadybirdBrowser/ladybird
synced 2026-04-26 01:35:08 +02:00
7f89158d20
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
17 lines
354 B
JavaScript
17 lines
354 B
JavaScript
function switchWithBlockDecl(x) {
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let result;
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switch (x) {
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case 1:
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let a = "one";
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result = () => a;
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break;
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case 2:
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let b = "two";
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result = () => b;
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break;
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}
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return result();
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}
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console.log(switchWithBlockDecl(1));
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console.log(switchWithBlockDecl(2));
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