Function getFlowCacheKey

test/fixtures/snapshot/typescript.js:69283–69308

(node, declaredType, initialType, flowContainer)

        // leftmost identifier followed by zero or more property names separated by dots.
        // The result is undefined if the reference isn't a dotted name.
        function getFlowCacheKey(node, declaredType, initialType, flowContainer) {
            switch (node.kind) {
                case 79 /* SyntaxKind.Identifier */:
                    if (!ts.isThisInTypeQuery(node)) {
                        var symbol = getResolvedSymbol(node);
                        return symbol !== unknownSymbol ? "".concat(flowContainer ? getNodeId(flowContainer) : "-1", "|").concat(getTypeId(declaredType), "|").concat(getTypeId(initialType), "|").concat(getSymbolId(symbol)) : undefined;
                    }
                // falls through
                case 108 /* SyntaxKind.ThisKeyword */:
                    return "0|".concat(flowContainer ? getNodeId(flowContainer) : "-1", "|").concat(getTypeId(declaredType), "|").concat(getTypeId(initialType));
                case 230 /* SyntaxKind.NonNullExpression */:
                case 212 /* SyntaxKind.ParenthesizedExpression */:
                    return getFlowCacheKey(node.expression, declaredType, initialType, flowContainer);
                case 161 /* SyntaxKind.QualifiedName */:
                    var left = getFlowCacheKey(node.left, declaredType, initialType, flowContainer);
                    return left && left + "." + node.right.escapedText;
                case 206 /* SyntaxKind.PropertyAccessExpression */:
                case 207 /* SyntaxKind.ElementAccessExpression */:
                    var propName = getAccessedPropertyName(node);
                    if (propName !== undefined) {
                        var key = getFlowCacheKey(node.expression, declaredType, initialType, flowContainer);
                        return key && key + "." + propName;
                    }
            }
            return undefined;
        }
        function isMatchingReference(source, target) {
            switch (target.kind) {
                case 212 /* SyntaxKind.ParenthesizedExpression */: