haikuwebkit/LayoutTests/js/class-syntax-expression.html

<!DOCTYPE html>
<html>
<body>
<script src="../resources/js-test-pre.js"></script>
<script src="script-tests/class-syntax-expression.js"></script>
<script src="../resources/js-test-post.js"></script>
</body>
</html>
Implement ES6 class syntax without inheritance support https://bugs.webkit.org/show_bug.cgi?id=140918 Reviewed by Geoffrey Garen. Source/JavaScriptCore: Added the most basic support for ES6 class syntax. After this patch, we support basic class definition like: class A { constructor() { } someMethod() { } } We'll add the support for "extends" keyword and automatically generating a constructor in follow up patches. We also don't support block scoping of a class declaration. We support both class declaration and class expression. A class expression is implemented by the newly added ClassExprNode AST node. A class declaration is implemented by ClassDeclNode, which is a thin wrapper around AssignResolveNode. Tests: js/class-syntax-declaration.html js/class-syntax-expression.html * bytecompiler/NodesCodegen.cpp: (JSC::ObjectLiteralNode::emitBytecode): Create a new object instead of delegating the work to PropertyListNode. Also fixed the 5-space indentation. (JSC::PropertyListNode::emitBytecode): Don't create a new object now that ObjectLiteralNode does this. (JSC::ClassDeclNode::emitBytecode): Added. Just let the AssignResolveNode node emit the byte code. (JSC::ClassExprNode::emitBytecode): Create the class constructor and add static methods to the constructor by emitting the byte code for PropertyListNode. Add instance methods to the class's prototype object the same way. * parser/ASTBuilder.h: (JSC::ASTBuilder::createClassExpr): Added. Creates a ClassExprNode. (JSC::ASTBuilder::createClassDeclStatement): Added. Creates a AssignResolveNode and wraps it by a ClassDeclNode. * parser/NodeConstructors.h: (JSC::ClassDeclNode::ClassDeclNode): Added. (JSC::ClassExprNode::ClassExprNode): Added. * parser/Nodes.h: (JSC::ClassExprNode): Added. (JSC::ClassDeclNode): Added. * parser/Parser.cpp: (JSC::Parser<LexerType>::parseStatement): Added the support for class declaration. (JSC::stringForFunctionMode): Return "method" for MethodMode. (JSC::Parser<LexerType>::parseClassDeclaration): Added. Uses parseClass to create a class expression and wraps it with ClassDeclNode as described above. (JSC::Parser<LexerType>::parseClass): Parses a class expression. (JSC::Parser<LexerType>::parseProperty): (JSC::Parser<LexerType>::parseGetterSetter): Extracted from parseProperty to share the code between parseProperty and parseClass. (JSC::Parser<LexerType>::parsePrimaryExpression): Added the support for class expression. * parser/Parser.h: (FunctionParseMode): Added MethodMode. * parser/SyntaxChecker.h: (JSC::SyntaxChecker::createClassExpr): Added. (JSC::SyntaxChecker::createClassDeclStatement): Added. LayoutTests: Added two tests for class declarations and class expressions. * TestExpectations: * js/class-syntax-declaration-expected.txt: Added. * js/class-syntax-declaration.html: Added. * js/class-syntax-expression-expected.txt: Added. * js/class-syntax-expression.html: Added. * js/script-tests/class-syntax-declaration.js: Added. * js/script-tests/class-syntax-expression.js: Added. Canonical link: https://commits.webkit.org/159052@main git-svn-id: https://svn.webkit.org/repository/webkit/trunk@179371 268f45cc-cd09-0410-ab3c-d52691b4dbfc 2015-01-29 22:59:19 +00:00			`<!DOCTYPE html>`
			`<html>`
			`<body>`
			`<script src="../resources/js-test-pre.js"></script>`
			`<script src="script-tests/class-syntax-expression.js"></script>`
			`<script src="../resources/js-test-post.js"></script>`
			`</body>`
			`</html>`