Function checkIdentifier

test/fixtures/snapshot/typescript.js:71643–71809

(node, checkMode)

            return getTypeOfSymbol(symbol);
        }
        function checkIdentifier(node, checkMode) {
            if (ts.isThisInTypeQuery(node)) {
                return checkThisExpression(node);
            }
            var symbol = getResolvedSymbol(node);
            if (symbol === unknownSymbol) {
                return errorType;
            }
            // As noted in ECMAScript 6 language spec, arrow functions never have an arguments objects.
            // Although in down-level emit of arrow function, we emit it using function expression which means that
            // arguments objects will be bound to the inner object; emitting arrow function natively in ES6, arguments objects
            // will be bound to non-arrow function that contain this arrow function. This results in inconsistent behavior.
            // To avoid that we will give an error to users if they use arguments objects in arrow function so that they
            // can explicitly bound arguments objects
            if (symbol === argumentsSymbol) {
                if (isInPropertyInitializerOrClassStaticBlock(node)) {
                    error(node, ts.Diagnostics.arguments_cannot_be_referenced_in_property_initializers);
                    return errorType;
                }
                var container = ts.getContainingFunction(node);
                if (languageVersion < 2 /* ScriptTarget.ES2015 */) {
                    if (container.kind === 214 /* SyntaxKind.ArrowFunction */) {
                        error(node, ts.Diagnostics.The_arguments_object_cannot_be_referenced_in_an_arrow_function_in_ES3_and_ES5_Consider_using_a_standard_function_expression);
                    }
                    else if (ts.hasSyntacticModifier(container, 256 /* ModifierFlags.Async */)) {
                        error(node, ts.Diagnostics.The_arguments_object_cannot_be_referenced_in_an_async_function_or_method_in_ES3_and_ES5_Consider_using_a_standard_function_or_method);
                    }
                }
                getNodeLinks(container).flags |= 8192 /* NodeCheckFlags.CaptureArguments */;
                return getTypeOfSymbol(symbol);
            }
            // We should only mark aliases as referenced if there isn't a local value declaration
            // for the symbol. Also, don't mark any property access expression LHS - checkPropertyAccessExpression will handle that
            if (!(node.parent && ts.isPropertyAccessExpression(node.parent) && node.parent.expression === node)) {
                markAliasReferenced(symbol, node);
            }
            var localOrExportSymbol = getExportSymbolOfValueSymbolIfExported(symbol);
            var targetSymbol = checkDeprecatedAliasedSymbol(localOrExportSymbol, node);
            if (isDeprecatedSymbol(targetSymbol) && isUncalledFunctionReference(node, targetSymbol) && targetSymbol.declarations) {
                addDeprecatedSuggestion(node, targetSymbol.declarations, node.escapedText);
            }
            var declaration = localOrExportSymbol.valueDeclaration;
            if (declaration && localOrExportSymbol.flags & 32 /* SymbolFlags.Class */) {
                // Due to the emit for class decorators, any reference to the class from inside of the class body
                // must instead be rewritten to point to a temporary variable to avoid issues with the double-bind
                // behavior of class names in ES6.
                if (declaration.kind === 257 /* SyntaxKind.ClassDeclaration */
                    && ts.nodeIsDecorated(declaration)) {
                    var container = ts.getContainingClass(node);
                    while (container !== undefined) {
                        if (container === declaration && container.name !== node) {
                            getNodeLinks(declaration).flags |= 16777216 /* NodeCheckFlags.ClassWithConstructorReference */;
                            getNodeLinks(node).flags |= 33554432 /* NodeCheckFlags.ConstructorReferenceInClass */;
                            break;
                        }
                        container = ts.getContainingClass(container);
                    }
                }