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test-js: Add canParseSource() native function
This allows us to check code for syntax errors without relying on Function(), which can lead to false negatives as certain things are valid in a function context, but not outside one.
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1 changed files with 13 additions and 0 deletions
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@ -106,6 +106,7 @@ private:
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virtual const char* class_name() const override { return "TestRunnerGlobalObject"; }
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JS_DECLARE_NATIVE_FUNCTION(is_strict_mode);
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JS_DECLARE_NATIVE_FUNCTION(can_parse_source);
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};
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class TestRunner {
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@ -159,8 +160,10 @@ void TestRunnerGlobalObject::initialize()
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JS::GlobalObject::initialize();
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static FlyString global_property_name { "global" };
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static FlyString is_strict_mode_property_name { "isStrictMode" };
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static FlyString can_parse_source_property_name { "canParseSource" };
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define_property(global_property_name, this, JS::Attribute::Enumerable);
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define_native_function(is_strict_mode_property_name, is_strict_mode);
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define_native_function(can_parse_source_property_name, can_parse_source);
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}
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JS_DEFINE_NATIVE_FUNCTION(TestRunnerGlobalObject::is_strict_mode)
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@ -168,6 +171,16 @@ JS_DEFINE_NATIVE_FUNCTION(TestRunnerGlobalObject::is_strict_mode)
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return JS::Value(vm.in_strict_mode());
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}
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JS_DEFINE_NATIVE_FUNCTION(TestRunnerGlobalObject::can_parse_source)
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{
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auto source = vm.argument(0).to_string(global_object);
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if (vm.exception())
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return {};
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auto parser = JS::Parser(JS::Lexer(source));
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parser.parse_program();
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return JS::Value(!parser.has_errors());
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}
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static void cleanup_and_exit()
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{
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// Clear the taskbar progress.
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