Function getQuickTypeOfExpression

test/fixtures/snapshot/typescript.js:79803–79829

(node)

            return type;
        }
        function getQuickTypeOfExpression(node) {
            var expr = ts.skipParentheses(node, /*excludeJSDocTypeAssertions*/ true);
            if (ts.isJSDocTypeAssertion(expr)) {
                var type = ts.getJSDocTypeAssertionType(expr);
                if (!ts.isConstTypeReference(type)) {
                    return getTypeFromTypeNode(type);
                }
            }
            expr = ts.skipParentheses(node);
            // Optimize for the common case of a call to a function with a single non-generic call
            // signature where we can just fetch the return type without checking the arguments.
            if (ts.isCallExpression(expr) && expr.expression.kind !== 106 /* SyntaxKind.SuperKeyword */ && !ts.isRequireCall(expr, /*checkArgumentIsStringLiteralLike*/ true) && !isSymbolOrSymbolForCall(expr)) {
                var type = ts.isCallChain(expr) ? getReturnTypeOfSingleNonGenericSignatureOfCallChain(expr) :
                    getReturnTypeOfSingleNonGenericCallSignature(checkNonNullExpression(expr.expression));
                if (type) {
                    return type;
                }
            }
            else if (ts.isAssertionExpression(expr) && !ts.isConstTypeReference(expr.type)) {
                return getTypeFromTypeNode(expr.type);
            }
            else if (node.kind === 8 /* SyntaxKind.NumericLiteral */ || node.kind === 10 /* SyntaxKind.StringLiteral */ ||
                node.kind === 110 /* SyntaxKind.TrueKeyword */ || node.kind === 95 /* SyntaxKind.FalseKeyword */) {
                return checkExpression(node);
            }
            return undefined;
        }
        /**
         * Returns the type of an expression. Unlike checkExpression, this function is simply concerned
         * with computing the type and may not fully check all contained sub-expressions for errors.