Function bindContainer

test/fixtures/snapshot/typescript.js:45091–45199

(node, containerFlags)

        // the getLocalNameOfContainer function in the type checker to validate that the local name
        // used for a container is unique.
        function bindContainer(node, containerFlags) {
            // Before we recurse into a node's children, we first save the existing parent, container
            // and block-container.  Then after we pop out of processing the children, we restore
            // these saved values.
            var saveContainer = container;
            var saveThisParentContainer = thisParentContainer;
            var savedBlockScopeContainer = blockScopeContainer;
            // Depending on what kind of node this is, we may have to adjust the current container
            // and block-container.   If the current node is a container, then it is automatically
            // considered the current block-container as well.  Also, for containers that we know
            // may contain locals, we eagerly initialize the .locals field. We do this because
            // it's highly likely that the .locals will be needed to place some child in (for example,
            // a parameter, or variable declaration).
            //
            // However, we do not proactively create the .locals for block-containers because it's
            // totally normal and common for block-containers to never actually have a block-scoped
            // variable in them.  We don't want to end up allocating an object for every 'block' we
            // run into when most of them won't be necessary.
            //
            // Finally, if this is a block-container, then we clear out any existing .locals object
            // it may contain within it.  This happens in incremental scenarios.  Because we can be
            // reusing a node from a previous compilation, that node may have had 'locals' created
            // for it.  We must clear this so we don't accidentally move any stale data forward from
            // a previous compilation.
            if (containerFlags & 1 /* ContainerFlags.IsContainer */) {
                if (node.kind !== 214 /* SyntaxKind.ArrowFunction */) {
                    thisParentContainer = container;
                }
                container = blockScopeContainer = node;
                if (containerFlags & 32 /* ContainerFlags.HasLocals */) {
                    container.locals = ts.createSymbolTable();
                }
                addToContainerChain(container);
            }
            else if (containerFlags & 2 /* ContainerFlags.IsBlockScopedContainer */) {
                blockScopeContainer = node;
                blockScopeContainer.locals = undefined;
            }
            if (containerFlags & 4 /* ContainerFlags.IsControlFlowContainer */) {
                var saveCurrentFlow = currentFlow;
                var saveBreakTarget = currentBreakTarget;
                var saveContinueTarget = currentContinueTarget;
                var saveReturnTarget = currentReturnTarget;
                var saveExceptionTarget = currentExceptionTarget;
                var saveActiveLabelList = activeLabelList;
                var saveHasExplicitReturn = hasExplicitReturn;
                var isImmediatelyInvoked = (containerFlags & 16 /* ContainerFlags.IsFunctionExpression */ &&
                    !ts.hasSyntacticModifier(node, 256 /* ModifierFlags.Async */) &&
                    !node.asteriskToken &&
                    !!ts.getImmediatelyInvokedFunctionExpression(node)) ||
                    node.kind === 170 /* SyntaxKind.ClassStaticBlockDeclaration */;
                // A non-async, non-generator IIFE is considered part of the containing control flow. Return statements behave
                // similarly to break statements that exit to a label just past the statement body.
                if (!isImmediatelyInvoked) {
                    currentFlow = initFlowNode({ flags: 2 /* FlowFlags.Start */ });
                    if (containerFlags & (16 /* ContainerFlags.IsFunctionExpression */ | 128 /* ContainerFlags.IsObjectLiteralOrClassExpressionMethodOrAccessor */)) {
                        currentFlow.node = node;
                    }