29dc4df4e5
The Annex B.3.4 spec change requires distinguishing catch clause environments from other lexical environments when checking for var/let conflicts in eval, which is now tracked via a flag on DeclarativeEnvironment and propagated through the CreateLexicalEnvironment bytecode instruction from the Rust codegen.
73 lines
1.8 KiB
JavaScript
73 lines
1.8 KiB
JavaScript
/*
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* Copyright (c) 2026-present, the Ladybird developers.
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*
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* https://github.com/tc39/test262/blob/main/test/annexB/language/eval-code/direct/var-env-lower-lex-catch-non-strict.js
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*/
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describe("eval catch block redeclaration", () => {
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test("eval function declaration in catch block does not throw", () => {
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try {
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throw null;
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} catch (err) {
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eval("function err() {}");
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}
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});
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test("eval function* declaration in catch block does not throw", () => {
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try {
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throw null;
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} catch (err) {
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eval("function* err() {}");
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}
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});
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test("eval async function declaration in catch block does not throw", () => {
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try {
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throw null;
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} catch (err) {
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eval("async function err() {}");
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}
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});
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test("eval async function* declaration in catch block does not throw", () => {
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try {
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throw null;
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} catch (err) {
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eval("async function* err() {}");
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}
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});
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test("eval var declaration in catch block does not throw", () => {
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try {
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throw null;
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} catch (err) {
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eval("var err;");
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}
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});
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test("eval var in for statement inside catch block does not throw", () => {
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try {
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throw null;
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} catch (err) {
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eval("for (var err; false; ) {}");
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}
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});
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test("eval var in for-in inside catch block does not throw", () => {
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try {
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throw null;
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} catch (err) {
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eval("for (var err in {}) {}");
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}
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});
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test("eval var in for-of inside catch block does not throw", () => {
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try {
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throw null;
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} catch (err) {
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eval("for (var err of []) {}");
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}
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});
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});
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