Function checkGrammarForGenerator

test/fixtures/snapshot/typescript.js:88262–88274

(node)

            return false;
        }
        function checkGrammarForGenerator(node) {
            if (node.asteriskToken) {
                ts.Debug.assert(node.kind === 256 /* SyntaxKind.FunctionDeclaration */ ||
                    node.kind === 213 /* SyntaxKind.FunctionExpression */ ||
                    node.kind === 169 /* SyntaxKind.MethodDeclaration */);
                if (node.flags & 16777216 /* NodeFlags.Ambient */) {
                    return grammarErrorOnNode(node.asteriskToken, ts.Diagnostics.Generators_are_not_allowed_in_an_ambient_context);
                }
                if (!node.body) {
                    return grammarErrorOnNode(node.asteriskToken, ts.Diagnostics.An_overload_signature_cannot_be_declared_as_a_generator);
                }
            }
        }
        function checkGrammarForInvalidQuestionMark(questionToken, message) {
            return !!questionToken && grammarErrorOnNode(questionToken, message);
        }