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LibJS: Throw a TypeError when an arrow function is used as a constructor

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This commit is contained in:
Jack Karamanian 2020-05-30 00:16:42 -05:00 • committed by Andreas Kling
parent 1110b1b444
commit 3ffb0a4e87
2 changed files with 9 additions and 0 deletions
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2
Libraries/LibJS/Runtime/ScriptFunction.cpp
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@ -125,6 +125,8 @@ Value ScriptFunction::call(Interpreter& interpreter)
Value ScriptFunction::construct(Interpreter& interpreter) Value ScriptFunction::construct(Interpreter& interpreter)
{ {
if (m_is_arrow_function)
return interpreter.throw_exception<TypeError>(String::format("%s is not a constructor", m_name.characters()));
return call(interpreter); return call(interpreter);
} }

7
Libraries/LibJS/Tests/arrow-functions.js
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@ -81,6 +81,13 @@ try {
assert(Baz.prototype === undefined); assert(Baz.prototype === undefined);
assertThrowsError(() => {
new Baz();
}, {
error: TypeError,
message: "Baz is not a constructor"
});
(() => { (() => {
"use strict"; "use strict";
assert(isStrictMode()); assert(isStrictMode());