Function isSymbolUsedInConditionBody

test/fixtures/snapshot/typescript.js:82741–82777

(expr, body, testedNode, testedSymbol)

            }
        }
        function isSymbolUsedInConditionBody(expr, body, testedNode, testedSymbol) {
            return !!ts.forEachChild(body, function check(childNode) {
                if (ts.isIdentifier(childNode)) {
                    var childSymbol = getSymbolAtLocation(childNode);
                    if (childSymbol && childSymbol === testedSymbol) {
                        // If the test was a simple identifier, the above check is sufficient
                        if (ts.isIdentifier(expr) || ts.isIdentifier(testedNode) && ts.isBinaryExpression(testedNode.parent)) {
                            return true;
                        }
                        // Otherwise we need to ensure the symbol is called on the same target
                        var testedExpression = testedNode.parent;
                        var childExpression = childNode.parent;
                        while (testedExpression && childExpression) {
                            if (ts.isIdentifier(testedExpression) && ts.isIdentifier(childExpression) ||
                                testedExpression.kind === 108 /* SyntaxKind.ThisKeyword */ && childExpression.kind === 108 /* SyntaxKind.ThisKeyword */) {
                                return getSymbolAtLocation(testedExpression) === getSymbolAtLocation(childExpression);
                            }
                            else if (ts.isPropertyAccessExpression(testedExpression) && ts.isPropertyAccessExpression(childExpression)) {
                                if (getSymbolAtLocation(testedExpression.name) !== getSymbolAtLocation(childExpression.name)) {
                                    return false;
                                }
                                childExpression = childExpression.expression;
                                testedExpression = testedExpression.expression;
                            }
                            else if (ts.isCallExpression(testedExpression) && ts.isCallExpression(childExpression)) {
                                childExpression = childExpression.expression;
                                testedExpression = testedExpression.expression;
                            }
                            else {
                                return false;
                            }
                        }
                    }
                }
                return ts.forEachChild(childNode, check);
            });
        }
        function isSymbolUsedInBinaryExpressionChain(node, testedSymbol) {
            while (ts.isBinaryExpression(node) && node.operatorToken.kind === 55 /* SyntaxKind.AmpersandAmpersandToken */) {
                var isUsed = ts.forEachChild(node.right, function visit(child) {