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document various ECMAScript bugs (#4857)

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This commit is contained in:
Alex Lam S.L
2021-04-21 01:33:54 +01:00
committed by GitHub
parent c53af3dfb1
commit c58e174647
4 changed files with 46 additions and 3 deletions
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15
test/ufuzz/index.js
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@@ -982,8 +982,17 @@ function createStatement(recurmax, canThrow, canBreak, canContinue, cannotReturn
var label = createLabel(canBreak, canContinue);
canBreak = label.break || enableLoopControl(canBreak, CAN_BREAK);
canContinue = label.continue || enableLoopControl(canContinue, CAN_CONTINUE);
var key = rng(10) ? "key" + loop : getVarName(NO_CONST);
var of = SUPPORT.for_of && rng(20) == 0;
var key;
if (rng(10)) {
key = "key" + loop;
} else if (bug_for_of_async && of) {
addAvoidVar("async");
key = getVarName(NO_CONST);
removeAvoidVar("async");
} else {
key = getVarName(NO_CONST);
}
var init = "";
if (!/^key/.test(key)) {
if (!(of && bug_for_of_var) && rng(10) == 0) init = "var ";
@@ -1789,7 +1798,9 @@ function createClassLiteral(recurmax, stmtDepth, canThrow, name) {
if (rng(5)) {
async = false;
generator = false;
if (bug_async_class_await && fixed) addAvoidVar("await");
s += " = " + createExpression(recurmax, NO_COMMA, stmtDepth, fixed ? canThrow : CANNOT_THROW);
if (bug_async_class_await && fixed) removeAvoidVar("await");
generator = save_generator;
async = save_async;
}
@@ -2383,6 +2394,8 @@ if (SUPPORT.arrow && SUPPORT.async && SUPPORT.rest && typeof sandbox.run_code("a
return ex.name == "SyntaxError" && ex.message == "Rest parameter must be last formal parameter";
};
}
var bug_async_class_await = SUPPORT.async && SUPPORT.class_field && typeof sandbox.run_code("var await; async function f() { class A { static p = await; } }") != "string";
var bug_for_of_async = SUPPORT.for_await_of && typeof sandbox.run_code("var async; for (async of []);") != "string";
var bug_for_of_var = SUPPORT.for_of && SUPPORT.let && typeof sandbox.run_code("try {} catch (e) { for (var e of []); }") != "string";
if (SUPPORT.destructuring && typeof sandbox.run_code("console.log([ 1 ], {} = 2);") != "string") {
beautify_options.output.v8 = true;