diff --git a/src/compiler/checker.ts b/src/compiler/checker.ts index 7d6c6a725ab..d10a07ad6b7 100644 --- a/src/compiler/checker.ts +++ b/src/compiler/checker.ts @@ -3266,6 +3266,9 @@ namespace ts { writeTypeList(type.typeArguments.slice(0, getTypeReferenceArity(type)), SyntaxKind.CommaToken); writePunctuation(writer, SyntaxKind.CloseBracketToken); } + else if (type.symbol.valueDeclaration && type.symbol.valueDeclaration.kind === SyntaxKind.ClassExpression) { + writeAnonymousType(getDeclaredTypeOfClassOrInterface(type.symbol), flags); + } else { // Write the type reference in the format f.g.C where A and B are type arguments // for outer type parameters, and f and g are the respective declaring containers of those @@ -3313,7 +3316,7 @@ namespace ts { const symbol = type.symbol; if (symbol) { // Always use 'typeof T' for type of class, enum, and module objects - if (symbol.flags & SymbolFlags.Class && !getBaseTypeVariableOfClass(symbol) || + if (symbol.flags & SymbolFlags.Class && !getBaseTypeVariableOfClass(symbol) && symbol.valueDeclaration.kind !== SyntaxKind.ClassExpression || symbol.flags & (SymbolFlags.Enum | SymbolFlags.ValueModule)) { writeTypeOfSymbol(type, flags); } @@ -3335,12 +3338,23 @@ namespace ts { else { // Since instantiations of the same anonymous type have the same symbol, tracking symbols instead // of types allows us to catch circular references to instantiations of the same anonymous type + // However, in case of class expressions, we want to write both the static side and the instance side. + // We skip adding the static side so that the instance side has a chance to be written + // before checking for circular references. if (!symbolStack) { symbolStack = []; } - symbolStack.push(symbol); - writeLiteralType(type, flags); - symbolStack.pop(); + const isConstructorObject = type.flags & TypeFlags.Object && + getObjectFlags(type) & ObjectFlags.Anonymous && + type.symbol && type.symbol.flags & SymbolFlags.Class; + if (isConstructorObject) { + writeLiteralType(type, flags); + } + else { + symbolStack.push(symbol); + writeLiteralType(type, flags); + symbolStack.pop(); + } } } else {