Function createConvertedLoopState

test/fixtures/snapshot/typescript.js:100493–100539

(node)

            return factory.updateWhileStatement(node, ts.visitNode(node.expression, visitor, ts.isExpression), convertedLoopBody);
        }
        function createConvertedLoopState(node) {
            var loopInitializer;
            switch (node.kind) {
                case 242 /* SyntaxKind.ForStatement */:
                case 243 /* SyntaxKind.ForInStatement */:
                case 244 /* SyntaxKind.ForOfStatement */:
                    var initializer = node.initializer;
                    if (initializer && initializer.kind === 255 /* SyntaxKind.VariableDeclarationList */) {
                        loopInitializer = initializer;
                    }
                    break;
            }
            // variables that will be passed to the loop as parameters
            var loopParameters = [];
            // variables declared in the loop initializer that will be changed inside the loop
            var loopOutParameters = [];
            if (loopInitializer && (ts.getCombinedNodeFlags(loopInitializer) & 3 /* NodeFlags.BlockScoped */)) {
                var hasCapturedBindingsInForHead = shouldConvertInitializerOfForStatement(node) ||
                    shouldConvertConditionOfForStatement(node) ||
                    shouldConvertIncrementorOfForStatement(node);
                for (var _i = 0, _a = loopInitializer.declarations; _i < _a.length; _i++) {
                    var decl = _a[_i];
                    processLoopVariableDeclaration(node, decl, loopParameters, loopOutParameters, hasCapturedBindingsInForHead);
                }
            }
            var currentState = { loopParameters: loopParameters, loopOutParameters: loopOutParameters };
            if (convertedLoopState) {
                // convertedOuterLoopState !== undefined means that this converted loop is nested in another converted loop.
                // if outer converted loop has already accumulated some state - pass it through
                if (convertedLoopState.argumentsName) {
                    // outer loop has already used 'arguments' so we've already have some name to alias it
                    // use the same name in all nested loops
                    currentState.argumentsName = convertedLoopState.argumentsName;
                }
                if (convertedLoopState.thisName) {
                    // outer loop has already used 'this' so we've already have some name to alias it
                    // use the same name in all nested loops
                    currentState.thisName = convertedLoopState.thisName;
                }
                if (convertedLoopState.hoistedLocalVariables) {
                    // we've already collected some non-block scoped variable declarations in enclosing loop
                    // use the same storage in nested loop
                    currentState.hoistedLocalVariables = convertedLoopState.hoistedLocalVariables;
                }
            }
            return currentState;
        }
        function addExtraDeclarationsForConvertedLoop(statements, state, outerState) {
            var extraVariableDeclarations;
            // propagate state from the inner loop to the outer loop if necessary