Function GetContainerFlags

internal/binder/binder.go:2558–2600

** * Declares a Symbol for the node and adds it to symbols. Reports errors for conflicting identifier names. * @param symbolTable - The symbol table which node will be added to. * @param parent - node's parent declaration. * @param node - The declaration to be added to the symbol table * @param

(node *ast.Node)

 */

func GetContainerFlags(node *ast.Node) ContainerFlags {
	switch node.Kind {
	case ast.KindClassExpression, ast.KindClassDeclaration, ast.KindEnumDeclaration, ast.KindObjectLiteralExpression, ast.KindTypeLiteral,
		ast.KindJsxAttributes:
		return ContainerFlagsIsContainer
	case ast.KindInterfaceDeclaration:
		return ContainerFlagsIsContainer | ContainerFlagsIsInterface
	case ast.KindModuleDeclaration, ast.KindTypeAliasDeclaration, ast.KindJSTypeAliasDeclaration, ast.KindMappedType, ast.KindIndexSignature:
		return ContainerFlagsIsContainer | ContainerFlagsHasLocals
	case ast.KindSourceFile:
		return ContainerFlagsIsContainer | ContainerFlagsIsControlFlowContainer | ContainerFlagsHasLocals
	case ast.KindGetAccessor, ast.KindSetAccessor, ast.KindMethodDeclaration:
		if ast.IsObjectLiteralOrClassExpressionMethodOrAccessor(node) {
			return ContainerFlagsIsContainer | ContainerFlagsIsControlFlowContainer | ContainerFlagsHasLocals | ContainerFlagsIsFunctionLike | ContainerFlagsIsObjectLiteralOrClassExpressionMethodOrAccessor | ContainerFlagsIsThisContainer
		}
		fallthrough
	case ast.KindConstructor, ast.KindFunctionDeclaration, ast.KindClassStaticBlockDeclaration:
		return ContainerFlagsIsContainer | ContainerFlagsIsControlFlowContainer | ContainerFlagsHasLocals | ContainerFlagsIsFunctionLike | ContainerFlagsIsThisContainer
	case ast.KindMethodSignature, ast.KindCallSignature, ast.KindFunctionType, ast.KindConstructSignature, ast.KindConstructorType:
		return ContainerFlagsIsContainer | ContainerFlagsIsControlFlowContainer | ContainerFlagsHasLocals | ContainerFlagsIsFunctionLike | ContainerFlagsPropagatesThisKeyword
	case ast.KindFunctionExpression:
		return ContainerFlagsIsContainer | ContainerFlagsIsControlFlowContainer | ContainerFlagsHasLocals | ContainerFlagsIsFunctionLike | ContainerFlagsIsFunctionExpression | ContainerFlagsIsThisContainer
	case ast.KindArrowFunction:
		return ContainerFlagsIsContainer | ContainerFlagsIsControlFlowContainer | ContainerFlagsHasLocals | ContainerFlagsIsFunctionLike | ContainerFlagsIsFunctionExpression | ContainerFlagsPropagatesThisKeyword
	case ast.KindModuleBlock:
		return ContainerFlagsIsControlFlowContainer
	case ast.KindPropertyDeclaration:
		if node.Initializer() != nil {
			return ContainerFlagsIsControlFlowContainer | ContainerFlagsIsThisContainer
		} else {
			return ContainerFlagsNone
		}
	case ast.KindCatchClause, ast.KindForStatement, ast.KindForInStatement, ast.KindForOfStatement, ast.KindCaseBlock:
		return ContainerFlagsIsBlockScopedContainer | ContainerFlagsHasLocals
	case ast.KindBlock:
		if ast.IsFunctionLike(node.Parent) || ast.IsClassStaticBlockDeclaration(node.Parent) {
			return ContainerFlagsNone
		} else {
			return ContainerFlagsIsBlockScopedContainer | ContainerFlagsHasLocals
		}
	}
	return ContainerFlagsNone
}

func isNarrowingExpression(expr *ast.Node) bool {
	switch expr.Kind {