Function serializeMaybeAliasAssignment

test/fixtures/snapshot/typescript.js:55003–55093

* Returns `true` if an export assignment or declaration was produced for the symbol

(symbol)

                 * Returns `true` if an export assignment or declaration was produced for the symbol
                 */
                function serializeMaybeAliasAssignment(symbol) {
                    if (symbol.flags & 4194304 /* SymbolFlags.Prototype */) {
                        return false;
                    }
                    var name = ts.unescapeLeadingUnderscores(symbol.escapedName);
                    var isExportEquals = name === "export=" /* InternalSymbolName.ExportEquals */;
                    var isDefault = name === "default" /* InternalSymbolName.Default */;
                    var isExportAssignmentCompatibleSymbolName = isExportEquals || isDefault;
                    // synthesize export = ref
                    // ref should refer to either be a locally scoped symbol which we need to emit, or
                    // a reference to another namespace/module which we may need to emit an `import` statement for
                    var aliasDecl = symbol.declarations && getDeclarationOfAliasSymbol(symbol);
                    // serialize what the alias points to, preserve the declaration's initializer
                    var target = aliasDecl && getTargetOfAliasDeclaration(aliasDecl, /*dontRecursivelyResolve*/ true);
                    // If the target resolves and resolves to a thing defined in this file, emit as an alias, otherwise emit as a const
                    if (target && ts.length(target.declarations) && ts.some(target.declarations, function (d) { return ts.getSourceFileOfNode(d) === ts.getSourceFileOfNode(enclosingDeclaration); })) {
                        // In case `target` refers to a namespace member, look at the declaration and serialize the leftmost symbol in it
                        // eg, `namespace A { export class B {} }; exports = A.B;`
                        // Technically, this is all that's required in the case where the assignment is an entity name expression
                        var expr = aliasDecl && ((ts.isExportAssignment(aliasDecl) || ts.isBinaryExpression(aliasDecl)) ? ts.getExportAssignmentExpression(aliasDecl) : ts.getPropertyAssignmentAliasLikeExpression(aliasDecl));
                        var first_1 = expr && ts.isEntityNameExpression(expr) ? getFirstNonModuleExportsIdentifier(expr) : undefined;
                        var referenced = first_1 && resolveEntityName(first_1, 67108863 /* SymbolFlags.All */, /*ignoreErrors*/ true, /*dontResolveAlias*/ true, enclosingDeclaration);
                        if (referenced || target) {
                            includePrivateSymbol(referenced || target);
                        }
                        // We disable the context's symbol tracker for the duration of this name serialization
                        // as, by virtue of being here, the name is required to print something, and we don't want to
                        // issue a visibility error on it. Only anonymous classes that an alias points at _would_ issue
                        // a visibility error here (as they're not visible within any scope), but we want to hoist them
                        // into the containing scope anyway, so we want to skip the visibility checks.
                        var oldTrack = context.tracker.trackSymbol;
                        context.tracker.trackSymbol = function () { return false; };
                        if (isExportAssignmentCompatibleSymbolName) {
                            results.push(ts.factory.createExportAssignment(
                            /*decorators*/ undefined, 
                            /*modifiers*/ undefined, isExportEquals, symbolToExpression(target, context, 67108863 /* SymbolFlags.All */)));
                        }
                        else {
                            if (first_1 === expr && first_1) {
                                // serialize as `export {target as name}`
                                serializeExportSpecifier(name, ts.idText(first_1));
                            }
                            else if (expr && ts.isClassExpression(expr)) {
                                serializeExportSpecifier(name, getInternalSymbolName(target, ts.symbolName(target)));
                            }
                            else {
                                // serialize as `import _Ref = t.arg.et; export { _Ref as name }`
                                var varName = getUnusedName(name, symbol);
                                addResult(ts.factory.createImportEqualsDeclaration(
                                /*decorators*/ undefined, 
                                /*modifiers*/ undefined, 
                                /*isTypeOnly*/ false, ts.factory.createIdentifier(varName), symbolToName(target, context, 67108863 /* SymbolFlags.All */, /*expectsIdentifier*/ false)), 0 /* ModifierFlags.None */);
                                serializeExportSpecifier(name, varName);
                            }
                        }
                        context.tracker.trackSymbol = oldTrack;
                        return true;
                    }