diff --git a/completionAtDottedNamespace.ts b/completionAtDottedNamespace.ts
new file mode 100644
index 00000000000..cbf16435a91
--- /dev/null
+++ b/completionAtDottedNamespace.ts
@@ -0,0 +1,5 @@
+///
+
+////namespace wwer./**/w
+
+verify.completions({ marker: "", exact: [], isNewIdentifierLocation: true });
diff --git a/src/compiler/binder.ts b/src/compiler/binder.ts
index 7216af4e817..f0e17261810 100644
--- a/src/compiler/binder.ts
+++ b/src/compiler/binder.ts
@@ -753,7 +753,7 @@ namespace ts {
function isNarrowableReference(expr: Expression): boolean {
return expr.kind === SyntaxKind.Identifier || expr.kind === SyntaxKind.ThisKeyword || expr.kind === SyntaxKind.SuperKeyword ||
- isPropertyAccessExpression(expr) && isNarrowableReference(expr.expression) ||
+ (isPropertyAccessExpression(expr) || isNonNullExpression(expr) || isParenthesizedExpression(expr)) && isNarrowableReference(expr.expression) ||
isElementAccessExpression(expr) && expr.argumentExpression &&
(isStringLiteral(expr.argumentExpression) || isNumericLiteral(expr.argumentExpression)) &&
isNarrowableReference(expr.expression);
diff --git a/src/compiler/builder.ts b/src/compiler/builder.ts
index 5d792545257..0db924913f4 100644
--- a/src/compiler/builder.ts
+++ b/src/compiler/builder.ts
@@ -99,7 +99,8 @@ namespace ts {
if (useOldState) {
// Verify the sanity of old state
if (!oldState!.currentChangedFilePath) {
- Debug.assert(!oldState!.affectedFiles && (!oldState!.currentAffectedFilesSignatures || !oldState!.currentAffectedFilesSignatures!.size), "Cannot reuse if only few affected files of currentChangedFile were iterated");
+ const affectedSignatures = oldState!.currentAffectedFilesSignatures;
+ Debug.assert(!oldState!.affectedFiles && (!affectedSignatures || !affectedSignatures.size), "Cannot reuse if only few affected files of currentChangedFile were iterated");
}
if (canCopySemanticDiagnostics) {
Debug.assert(!forEachKey(oldState!.changedFilesSet, path => oldState!.semanticDiagnosticsPerFile!.has(path)), "Semantic diagnostics shouldnt be available for changed files");
diff --git a/src/compiler/checker.ts b/src/compiler/checker.ts
index 86822e24878..b1f73584c49 100644
--- a/src/compiler/checker.ts
+++ b/src/compiler/checker.ts
@@ -444,10 +444,10 @@ namespace ts {
const circularConstraintType = createAnonymousType(undefined, emptySymbols, emptyArray, emptyArray, undefined, undefined);
const resolvingDefaultType = createAnonymousType(undefined, emptySymbols, emptyArray, emptyArray, undefined, undefined);
- const markerSuperType = createType(TypeFlags.TypeParameter);
- const markerSubType = createType(TypeFlags.TypeParameter);
+ const markerSuperType = createTypeParameter();
+ const markerSubType = createTypeParameter();
markerSubType.constraint = markerSuperType;
- const markerOtherType = createType(TypeFlags.TypeParameter);
+ const markerOtherType = createTypeParameter();
const noTypePredicate = createIdentifierTypePredicate("<>", 0, anyType);
@@ -663,7 +663,6 @@ namespace ts {
const subtypeRelation = createMap();
const assignableRelation = createMap();
- const definitelyAssignableRelation = createMap();
const comparableRelation = createMap();
const identityRelation = createMap();
const enumRelation = createMap();
@@ -2408,11 +2407,18 @@ namespace ts {
// combine other declarations with the module or variable (e.g. a class/module, function/module, interface/variable).
function resolveESModuleSymbol(moduleSymbol: Symbol | undefined, referencingLocation: Node, dontResolveAlias: boolean): Symbol | undefined {
const symbol = resolveExternalModuleSymbol(moduleSymbol, dontResolveAlias);
+
if (!dontResolveAlias && symbol) {
if (!(symbol.flags & (SymbolFlags.Module | SymbolFlags.Variable)) && !getDeclarationOfKind(symbol, SyntaxKind.SourceFile)) {
- error(referencingLocation, Diagnostics.Module_0_resolves_to_a_non_module_entity_and_cannot_be_imported_using_this_construct, symbolToString(moduleSymbol!));
+ const compilerOptionName = moduleKind >= ModuleKind.ES2015
+ ? "allowSyntheticDefaultImports"
+ : "esModuleInterop";
+
+ error(referencingLocation, Diagnostics.This_module_can_only_be_referenced_with_ECMAScript_imports_Slashexports_by_turning_on_the_0_flag_and_referencing_its_default_export, compilerOptionName);
+
return symbol;
}
+
if (compilerOptions.esModuleInterop) {
const referenceParent = referencingLocation.parent;
if (
@@ -2745,6 +2751,12 @@ namespace ts {
return getUnionType(arrayFrom(typeofEQFacts.keys(), getLiteralType));
}
+ function createTypeParameter(symbol?: Symbol) {
+ const type = createType(TypeFlags.TypeParameter);
+ if (symbol) type.symbol = symbol;
+ return type;
+ }
+
// A reserved member name starts with two underscores, but the third character cannot be an underscore
// or the @ symbol. A third underscore indicates an escaped form of an identifer that started
// with at least two underscores. The @ character indicates that the name is denoted by a well known ES
@@ -5419,6 +5431,10 @@ namespace ts {
// Handle variable, parameter or property
if (!pushTypeResolution(symbol, TypeSystemPropertyName.Type)) {
+ // Symbol is property of some kind that is merged with something - should use `getTypeOfFuncClassEnumModule` and not `getTypeOfVariableOrParameterOrProperty`
+ if (symbol.flags & SymbolFlags.ValueModule) {
+ return getTypeOfFuncClassEnumModule(symbol);
+ }
return errorType;
}
let type: Type | undefined;
@@ -5474,6 +5490,10 @@ namespace ts {
}
if (!popTypeResolution()) {
+ // Symbol is property of some kind that is merged with something - should use `getTypeOfFuncClassEnumModule` and not `getTypeOfVariableOrParameterOrProperty`
+ if (symbol.flags & SymbolFlags.ValueModule) {
+ return getTypeOfFuncClassEnumModule(symbol);
+ }
type = reportCircularityError(symbol);
}
return type;
@@ -6085,9 +6105,8 @@ namespace ts {
(type).instantiations.set(getTypeListId(type.typeParameters), type);
(type).target = type;
(type).typeArguments = type.typeParameters;
- type.thisType = createType(TypeFlags.TypeParameter);
+ type.thisType = createTypeParameter(symbol);
type.thisType.isThisType = true;
- type.thisType.symbol = symbol;
type.thisType.constraint = type;
}
}
@@ -6228,20 +6247,12 @@ namespace ts {
function getDeclaredTypeOfTypeParameter(symbol: Symbol): TypeParameter {
const links = getSymbolLinks(symbol);
- if (!links.declaredType) {
- const type = createType(TypeFlags.TypeParameter);
- type.symbol = symbol;
- links.declaredType = type;
- }
- return links.declaredType;
+ return links.declaredType || (links.declaredType = createTypeParameter(symbol));
}
function getDeclaredTypeOfAlias(symbol: Symbol): Type {
const links = getSymbolLinks(symbol);
- if (!links.declaredType) {
- links.declaredType = getDeclaredTypeOfSymbol(resolveAlias(symbol));
- }
- return links.declaredType;
+ return links.declaredType || (links.declaredType = getDeclaredTypeOfSymbol(resolveAlias(symbol)));
}
function getDeclaredTypeOfSymbol(symbol: Symbol): Type {
@@ -7413,7 +7424,7 @@ namespace ts {
if (type.root.isDistributive) {
const simplified = getSimplifiedType(type.checkType);
const constraint = simplified === type.checkType ? getConstraintOfType(simplified) : simplified;
- if (constraint) {
+ if (constraint && constraint !== type.checkType) {
const mapper = makeUnaryTypeMapper(type.root.checkType, constraint);
const instantiated = getConditionalTypeInstantiation(type, combineTypeMappers(mapper, type.mapper));
if (!(instantiated.flags & TypeFlags.Never)) {
@@ -9049,7 +9060,7 @@ namespace ts {
if (arity) {
typeParameters = new Array(arity);
for (let i = 0; i < arity; i++) {
- const typeParameter = typeParameters[i] = createType(TypeFlags.TypeParameter);
+ const typeParameter = typeParameters[i] = createTypeParameter();
if (i < maxLength) {
const property = createSymbol(SymbolFlags.Property | (i >= minLength ? SymbolFlags.Optional : 0), "" + i as __String);
property.type = typeParameter;
@@ -9070,7 +9081,7 @@ namespace ts {
type.instantiations.set(getTypeListId(type.typeParameters), type);
type.target = type;
type.typeArguments = type.typeParameters;
- type.thisType = createType(TypeFlags.TypeParameter);
+ type.thisType = createTypeParameter();
type.thisType.isThisType = true;
type.thisType.constraint = type;
type.declaredProperties = properties;
@@ -9971,7 +9982,7 @@ namespace ts {
if (checkType === wildcardType || extendsType === wildcardType) {
return wildcardType;
}
- const checkTypeInstantiable = maybeTypeOfKind(checkType, TypeFlags.Instantiable);
+ const checkTypeInstantiable = maybeTypeOfKind(checkType, TypeFlags.Instantiable | TypeFlags.GenericMappedType);
let combinedMapper: TypeMapper | undefined;
if (root.inferTypeParameters) {
const context = createInferenceContext(root.inferTypeParameters, /*signature*/ undefined, InferenceFlags.None);
@@ -9986,7 +9997,7 @@ namespace ts {
// Instantiate the extends type including inferences for 'infer T' type parameters
const inferredExtendsType = combinedMapper ? instantiateType(root.extendsType, combinedMapper) : extendsType;
// We attempt to resolve the conditional type only when the check and extends types are non-generic
- if (!checkTypeInstantiable && !maybeTypeOfKind(inferredExtendsType, TypeFlags.Instantiable)) {
+ if (!checkTypeInstantiable && !maybeTypeOfKind(inferredExtendsType, TypeFlags.Instantiable | TypeFlags.GenericMappedType)) {
if (inferredExtendsType.flags & TypeFlags.AnyOrUnknown) {
return instantiateType(root.trueType, mapper);
}
@@ -9998,14 +10009,15 @@ namespace ts {
// types with type parameters mapped to the wildcard type, the most permissive instantiations
// possible (the wildcard type is assignable to and from all types). If those are not related,
// then no instatiations will be and we can just return the false branch type.
- if (!isTypeAssignableTo(getWildcardInstantiation(checkType), getWildcardInstantiation(inferredExtendsType))) {
+ if (!isTypeAssignableTo(getPermissiveInstantiation(checkType), getPermissiveInstantiation(inferredExtendsType))) {
return instantiateType(root.falseType, mapper);
}
- // Return trueType for a definitely true extends check. The definitely assignable relation excludes
- // type variable constraints from consideration. Without the definitely assignable relation, the type
+ // Return trueType for a definitely true extends check. We check instantiations of the two
+ // types with type parameters mapped to their restrictive form, i.e. a form of the type parameter
+ // that has no constraint. This ensures that, for example, the type
// type Foo = T extends { x: string } ? string : number
- // would immediately resolve to 'string' instead of being deferred.
- if (checkTypeRelatedTo(checkType, inferredExtendsType, definitelyAssignableRelation, /*errorNode*/ undefined)) {
+ // doesn't immediately resolve to 'string' instead of being deferred.
+ if (isTypeAssignableTo(getRestrictiveInstantiation(checkType), getRestrictiveInstantiation(inferredExtendsType))) {
return instantiateType(root.trueType, combinedMapper || mapper);
}
}
@@ -10611,13 +10623,20 @@ namespace ts {
return t => t === source ? target : baseMapper(t);
}
- function wildcardMapper(type: Type) {
+ function permissiveMapper(type: Type) {
return type.flags & TypeFlags.TypeParameter ? wildcardType : type;
}
+ function getRestrictiveTypeParameter(tp: TypeParameter) {
+ return !tp.constraint ? tp : tp.restrictiveInstantiation || (tp.restrictiveInstantiation = createTypeParameter(tp.symbol));
+ }
+
+ function restrictiveMapper(type: Type) {
+ return type.flags & TypeFlags.TypeParameter ? getRestrictiveTypeParameter(type) : type;
+ }
+
function cloneTypeParameter(typeParameter: TypeParameter): TypeParameter {
- const result = createType(TypeFlags.TypeParameter);
- result.symbol = typeParameter.symbol;
+ const result = createTypeParameter(typeParameter.symbol);
result.target = typeParameter;
return result;
}
@@ -10969,9 +10988,14 @@ namespace ts {
return type;
}
- function getWildcardInstantiation(type: Type) {
+ function getPermissiveInstantiation(type: Type) {
return type.flags & (TypeFlags.Primitive | TypeFlags.AnyOrUnknown | TypeFlags.Never) ? type :
- type.wildcardInstantiation || (type.wildcardInstantiation = instantiateType(type, wildcardMapper));
+ type.permissiveInstantiation || (type.permissiveInstantiation = instantiateType(type, permissiveMapper));
+ }
+
+ function getRestrictiveInstantiation(type: Type) {
+ return type.flags & (TypeFlags.Primitive | TypeFlags.AnyOrUnknown | TypeFlags.Never) ? type :
+ type.restrictiveInstantiation || (type.restrictiveInstantiation = instantiateType(type, restrictiveMapper));
}
function instantiateIndexInfo(info: IndexInfo | undefined, mapper: TypeMapper): IndexInfo | undefined {
@@ -11644,7 +11668,7 @@ namespace ts {
if (s & TypeFlags.Null && (!strictNullChecks || t & TypeFlags.Null)) return true;
if (s & TypeFlags.Object && t & TypeFlags.NonPrimitive) return true;
if (s & TypeFlags.UniqueESSymbol || t & TypeFlags.UniqueESSymbol) return false;
- if (relation === assignableRelation || relation === definitelyAssignableRelation || relation === comparableRelation) {
+ if (relation === assignableRelation || relation === comparableRelation) {
if (s & TypeFlags.Any) return true;
// Type number or any numeric literal type is assignable to any numeric enum type or any
// numeric enum literal type. This rule exists for backwards compatibility reasons because
@@ -11836,7 +11860,7 @@ namespace ts {
target = (target).regularType;
}
if (source.flags & TypeFlags.Substitution) {
- source = relation === definitelyAssignableRelation ? (source).typeVariable : (source).substitute;
+ source = (source).substitute;
}
if (target.flags & TypeFlags.Substitution) {
target = (target).typeVariable;
@@ -12022,7 +12046,7 @@ namespace ts {
}
if (isExcessPropertyCheckTarget(target)) {
const isComparingJsxAttributes = !!(getObjectFlags(source) & ObjectFlags.JsxAttributes);
- if ((relation === assignableRelation || relation === definitelyAssignableRelation || relation === comparableRelation) &&
+ if ((relation === assignableRelation || relation === comparableRelation) &&
(isTypeSubsetOf(globalObjectType, target) || (!isComparingJsxAttributes && isEmptyObjectType(target)))) {
return false;
}
@@ -12425,24 +12449,22 @@ namespace ts {
}
// A type S is assignable to keyof T if S is assignable to keyof C, where C is the
// simplified form of T or, if T doesn't simplify, the constraint of T.
- if (relation !== definitelyAssignableRelation) {
- const simplified = getSimplifiedType((target).type);
- const constraint = simplified !== (target).type ? simplified : getConstraintOfType((target).type);
- if (constraint) {
- // We require Ternary.True here such that circular constraints don't cause
- // false positives. For example, given 'T extends { [K in keyof T]: string }',
- // 'keyof T' has itself as its constraint and produces a Ternary.Maybe when
- // related to other types.
- if (isRelatedTo(source, getIndexType(constraint, (target as IndexType).stringsOnly), reportErrors) === Ternary.True) {
- return Ternary.True;
- }
+ const simplified = getSimplifiedType((target).type);
+ const constraint = simplified !== (target).type ? simplified : getConstraintOfType((target).type);
+ if (constraint) {
+ // We require Ternary.True here such that circular constraints don't cause
+ // false positives. For example, given 'T extends { [K in keyof T]: string }',
+ // 'keyof T' has itself as its constraint and produces a Ternary.Maybe when
+ // related to other types.
+ if (isRelatedTo(source, getIndexType(constraint, (target as IndexType).stringsOnly), reportErrors) === Ternary.True) {
+ return Ternary.True;
}
}
}
else if (target.flags & TypeFlags.IndexedAccess) {
// A type S is related to a type T[K], where T and K aren't both type variables, if S is related to C,
// where C is the base constraint of T[K]
- if (relation !== identityRelation && relation !== definitelyAssignableRelation &&
+ if (relation !== identityRelation &&
!(isGenericObjectType((target).objectType) && isGenericIndexType((target).indexType))) {
const constraint = getBaseConstraintOfType(target);
if (constraint && constraint !== target) {
@@ -12485,26 +12507,24 @@ namespace ts {
return result;
}
}
- if (relation !== definitelyAssignableRelation) {
- const constraint = getConstraintOfType(source);
- if (!constraint || (source.flags & TypeFlags.TypeParameter && constraint.flags & TypeFlags.Any)) {
- // A type variable with no constraint is not related to the non-primitive object type.
- if (result = isRelatedTo(emptyObjectType, extractTypesOfKind(target, ~TypeFlags.NonPrimitive))) {
- errorInfo = saveErrorInfo;
- return result;
- }
- }
- // hi-speed no-this-instantiation check (less accurate, but avoids costly `this`-instantiation when the constraint will suffice), see #28231 for report on why this is needed
- else if (result = isRelatedTo(constraint, target, /*reportErrors*/ false, /*headMessage*/ undefined, isIntersectionConstituent)) {
- errorInfo = saveErrorInfo;
- return result;
- }
- // slower, fuller, this-instantiated check (necessary when comparing raw `this` types from base classes), see `subclassWithPolymorphicThisIsAssignable.ts` test for example
- else if (result = isRelatedTo(getTypeWithThisArgument(constraint, source), target, reportErrors, /*headMessage*/ undefined, isIntersectionConstituent)) {
+ const constraint = getConstraintOfType(source);
+ if (!constraint || (source.flags & TypeFlags.TypeParameter && constraint.flags & TypeFlags.Any)) {
+ // A type variable with no constraint is not related to the non-primitive object type.
+ if (result = isRelatedTo(emptyObjectType, extractTypesOfKind(target, ~TypeFlags.NonPrimitive))) {
errorInfo = saveErrorInfo;
return result;
}
}
+ // hi-speed no-this-instantiation check (less accurate, but avoids costly `this`-instantiation when the constraint will suffice), see #28231 for report on why this is needed
+ else if (result = isRelatedTo(constraint, target, /*reportErrors*/ false, /*headMessage*/ undefined, isIntersectionConstituent)) {
+ errorInfo = saveErrorInfo;
+ return result;
+ }
+ // slower, fuller, this-instantiated check (necessary when comparing raw `this` types from base classes), see `subclassWithPolymorphicThisIsAssignable.ts` test for example
+ else if (result = isRelatedTo(getTypeWithThisArgument(constraint, source), target, reportErrors, /*headMessage*/ undefined, isIntersectionConstituent)) {
+ errorInfo = saveErrorInfo;
+ return result;
+ }
}
else if (source.flags & TypeFlags.Index) {
if (result = isRelatedTo(keyofConstraintType, target, reportErrors)) {
@@ -12528,7 +12548,7 @@ namespace ts {
}
}
}
- else if (relation !== definitelyAssignableRelation) {
+ else {
const distributiveConstraint = getConstraintOfDistributiveConditionalType(source);
if (distributiveConstraint) {
if (result = isRelatedTo(distributiveConstraint, target, reportErrors)) {
@@ -12559,9 +12579,6 @@ namespace ts {
}
return Ternary.False;
}
- if (relation === definitelyAssignableRelation && isGenericMappedType(source)) {
- return Ternary.False;
- }
const sourceIsPrimitive = !!(source.flags & TypeFlags.Primitive);
if (relation !== identityRelation) {
source = getApparentType(source);
@@ -14764,6 +14781,9 @@ namespace ts {
return symbol !== unknownSymbol ? (isConstraintPosition(node) ? "@" : "") + getSymbolId(symbol) : undefined;
case SyntaxKind.ThisKeyword:
return "0";
+ case SyntaxKind.NonNullExpression:
+ case SyntaxKind.ParenthesizedExpression:
+ return getFlowCacheKey((node).expression);
case SyntaxKind.PropertyAccessExpression:
case SyntaxKind.ElementAccessExpression:
const propName = getAccessedPropertyName(node);
@@ -14776,6 +14796,11 @@ namespace ts {
}
function isMatchingReference(source: Node, target: Node): boolean {
+ switch (target.kind) {
+ case SyntaxKind.ParenthesizedExpression:
+ case SyntaxKind.NonNullExpression:
+ return isMatchingReference(source, (target as NonNullExpression | ParenthesizedExpression).expression);
+ }
switch (source.kind) {
case SyntaxKind.Identifier:
return target.kind === SyntaxKind.Identifier && getResolvedSymbol(source) === getResolvedSymbol(target) ||
@@ -14785,6 +14810,9 @@ namespace ts {
return target.kind === SyntaxKind.ThisKeyword;
case SyntaxKind.SuperKeyword:
return target.kind === SyntaxKind.SuperKeyword;
+ case SyntaxKind.NonNullExpression:
+ case SyntaxKind.ParenthesizedExpression:
+ return isMatchingReference((source as NonNullExpression | ParenthesizedExpression).expression, target);
case SyntaxKind.PropertyAccessExpression:
case SyntaxKind.ElementAccessExpression:
return isAccessExpression(target) &&
@@ -16625,7 +16653,7 @@ namespace ts {
function checkThisBeforeSuper(node: Node, container: Node, diagnosticMessage: DiagnosticMessage) {
const containingClassDecl = container.parent;
- const baseTypeNode = getEffectiveBaseTypeNode(containingClassDecl);
+ const baseTypeNode = getClassExtendsHeritageElement(containingClassDecl);
// If a containing class does not have extends clause or the class extends null
// skip checking whether super statement is called before "this" accessing.
@@ -16974,7 +17002,7 @@ namespace ts {
// at this point the only legal case for parent is ClassLikeDeclaration
const classLikeDeclaration = container.parent;
- if (!getEffectiveBaseTypeNode(classLikeDeclaration)) {
+ if (!getClassExtendsHeritageElement(classLikeDeclaration)) {
error(node, Diagnostics.super_can_only_be_referenced_in_a_derived_class);
return errorType;
}
@@ -23575,7 +23603,7 @@ namespace ts {
// Constructors of classes with no extends clause may not contain super calls, whereas
// constructors of derived classes must contain at least one super call somewhere in their function body.
const containingClassDecl = node.parent;
- if (getEffectiveBaseTypeNode(containingClassDecl)) {
+ if (getClassExtendsHeritageElement(containingClassDecl)) {
captureLexicalThis(node.parent, containingClassDecl);
const classExtendsNull = classDeclarationExtendsNull(containingClassDecl);
const superCall = getSuperCallInConstructor(node);
diff --git a/src/compiler/diagnosticMessages.json b/src/compiler/diagnosticMessages.json
index 1dbc7ca4710..0496d07405f 100644
--- a/src/compiler/diagnosticMessages.json
+++ b/src/compiler/diagnosticMessages.json
@@ -1776,7 +1776,7 @@
"category": "Error",
"code": 2496
},
- "Module '{0}' resolves to a non-module entity and cannot be imported using this construct.": {
+ "This module can only be referenced with ECMAScript imports/exports by turning on the '{0}' flag and referencing its default export.": {
"category": "Error",
"code": 2497
},
@@ -4815,5 +4815,9 @@
"Add names to all parameters without names": {
"category": "Message",
"code": 95073
+ },
+ "Enable the 'experimentalDecorators' option in your configuration file": {
+ "category": "Message",
+ "code": 95074
}
}
diff --git a/src/compiler/emitter.ts b/src/compiler/emitter.ts
index 9c09ed79a77..62aba51afec 100644
--- a/src/compiler/emitter.ts
+++ b/src/compiler/emitter.ts
@@ -2561,6 +2561,7 @@ namespace ts {
function emitJsxSelfClosingElement(node: JsxSelfClosingElement) {
writePunctuation("<");
emitJsxTagName(node.tagName);
+ emitTypeArguments(node, node.typeArguments);
writeSpace();
emit(node.attributes);
writePunctuation("/>");
@@ -2577,6 +2578,7 @@ namespace ts {
if (isJsxOpeningElement(node)) {
emitJsxTagName(node.tagName);
+ emitTypeArguments(node, node.typeArguments);
if (node.attributes.properties && node.attributes.properties.length > 0) {
writeSpace();
}
diff --git a/src/compiler/parser.ts b/src/compiler/parser.ts
index f976f77ea98..53e45505014 100644
--- a/src/compiler/parser.ts
+++ b/src/compiler/parser.ts
@@ -7774,17 +7774,18 @@ namespace ts {
const libReferenceDirectives = context.libReferenceDirectives;
forEach(toArray(entryOrList), (arg: PragmaPseudoMap["reference"]) => {
// TODO: GH#18217
+ const { types, lib, path } = arg!.arguments;
if (arg!.arguments["no-default-lib"]) {
context.hasNoDefaultLib = true;
}
- else if (arg!.arguments.types) {
- typeReferenceDirectives.push({ pos: arg!.arguments.types!.pos, end: arg!.arguments.types!.end, fileName: arg!.arguments.types!.value });
+ else if (types) {
+ typeReferenceDirectives.push({ pos: types.pos, end: types.end, fileName: types.value });
}
- else if (arg!.arguments.lib) {
- libReferenceDirectives.push({ pos: arg!.arguments.lib!.pos, end: arg!.arguments.lib!.end, fileName: arg!.arguments.lib!.value });
+ else if (lib) {
+ libReferenceDirectives.push({ pos: lib.pos, end: lib.end, fileName: lib.value });
}
- else if (arg!.arguments.path) {
- referencedFiles.push({ pos: arg!.arguments.path!.pos, end: arg!.arguments.path!.end, fileName: arg!.arguments.path!.value });
+ else if (path) {
+ referencedFiles.push({ pos: path.pos, end: path.end, fileName: path.value });
}
else {
reportDiagnostic(arg!.range.pos, arg!.range.end - arg!.range.pos, Diagnostics.Invalid_reference_directive_syntax);
diff --git a/src/compiler/program.ts b/src/compiler/program.ts
index 7dd57a07b9f..fbe9a6c5089 100644
--- a/src/compiler/program.ts
+++ b/src/compiler/program.ts
@@ -2234,8 +2234,9 @@ namespace ts {
processReferencedFiles(file, isDefaultLib);
processTypeReferenceDirectives(file);
}
-
- processLibReferenceDirectives(file);
+ if (!options.noLib) {
+ processLibReferenceDirectives(file);
+ }
modulesWithElidedImports.set(file.path, false);
processImportedModules(file);
@@ -2322,8 +2323,10 @@ namespace ts {
processReferencedFiles(file, isDefaultLib);
processTypeReferenceDirectives(file);
}
+ if (!options.noLib) {
+ processLibReferenceDirectives(file);
+ }
- processLibReferenceDirectives(file);
// always process imported modules to record module name resolutions
processImportedModules(file);
diff --git a/src/compiler/transformers/ts.ts b/src/compiler/transformers/ts.ts
index 700c0c8af25..a22c6df8d06 100644
--- a/src/compiler/transformers/ts.ts
+++ b/src/compiler/transformers/ts.ts
@@ -1898,6 +1898,7 @@ namespace ts {
case SyntaxKind.StringLiteral:
return createIdentifier("String");
+ case SyntaxKind.PrefixUnaryExpression:
case SyntaxKind.NumericLiteral:
return createIdentifier("Number");
diff --git a/src/compiler/types.ts b/src/compiler/types.ts
index 19eb8607711..852437942f1 100644
--- a/src/compiler/types.ts
+++ b/src/compiler/types.ts
@@ -3916,7 +3916,9 @@ namespace ts {
aliasTypeArguments?: ReadonlyArray; // Alias type arguments (if any)
/* @internal */ aliasTypeArgumentsContainsMarker?: boolean; // Alias type arguments (if any)
/* @internal */
- wildcardInstantiation?: Type; // Instantiation with type parameters mapped to wildcard type
+ permissiveInstantiation?: Type; // Instantiation with type parameters mapped to wildcard type
+ /* @internal */
+ restrictiveInstantiation?: Type; // Instantiation with type parameters mapped to unconstrained form
/* @internal */
immediateBaseConstraint?: Type; // Immediate base constraint cache
}
diff --git a/src/harness/compiler.ts b/src/harness/compiler.ts
index 532a2d65578..70bda90ef32 100644
--- a/src/harness/compiler.ts
+++ b/src/harness/compiler.ts
@@ -183,8 +183,9 @@ namespace compiler {
}
public getSourceMapRecord(): string | undefined {
- if (this.result!.sourceMaps && this.result!.sourceMaps!.length > 0) {
- return Harness.SourceMapRecorder.getSourceMapRecord(this.result!.sourceMaps!, this.program!, Array.from(this.js.values()).filter(d => !ts.fileExtensionIs(d.file, ts.Extension.Json)), Array.from(this.dts.values()));
+ const maps = this.result!.sourceMaps;
+ if (maps && maps.length > 0) {
+ return Harness.SourceMapRecorder.getSourceMapRecord(maps, this.program!, Array.from(this.js.values()).filter(d => !ts.fileExtensionIs(d.file, ts.Extension.Json)), Array.from(this.dts.values()));
}
}
diff --git a/src/services/codefixes/fixCannotFindModule.ts b/src/services/codefixes/fixCannotFindModule.ts
index 1c7070c74bf..1baaa9714f2 100644
--- a/src/services/codefixes/fixCannotFindModule.ts
+++ b/src/services/codefixes/fixCannotFindModule.ts
@@ -74,7 +74,7 @@ namespace ts.codefix {
const tsconfigObjectLiteral = getTsConfigObjectLiteralExpression(configFile);
if (!tsconfigObjectLiteral) return undefined;
- const compilerOptionsProperty = findProperty(tsconfigObjectLiteral, "compilerOptions");
+ const compilerOptionsProperty = findJsonProperty(tsconfigObjectLiteral, "compilerOptions");
if (!compilerOptionsProperty) {
const newCompilerOptions = createObjectLiteral([makeDefaultBaseUrl(), makeDefaultPaths()]);
changes.insertNodeAtObjectStart(configFile, tsconfigObjectLiteral, createJsonPropertyAssignment("compilerOptions", newCompilerOptions));
@@ -94,7 +94,7 @@ namespace ts.codefix {
return createJsonPropertyAssignment("baseUrl", createStringLiteral(defaultBaseUrl));
}
function getOrAddBaseUrl(changes: textChanges.ChangeTracker, tsconfig: TsConfigSourceFile, compilerOptions: ObjectLiteralExpression): string {
- const baseUrlProp = findProperty(compilerOptions, "baseUrl");
+ const baseUrlProp = findJsonProperty(compilerOptions, "baseUrl");
if (baseUrlProp) {
return isStringLiteral(baseUrlProp.initializer) ? baseUrlProp.initializer.text : defaultBaseUrl;
}
@@ -112,7 +112,7 @@ namespace ts.codefix {
return createJsonPropertyAssignment("paths", createObjectLiteral([makeDefaultPathMapping()]));
}
function getOrAddPathMapping(changes: textChanges.ChangeTracker, tsconfig: TsConfigSourceFile, compilerOptions: ObjectLiteralExpression) {
- const paths = findProperty(compilerOptions, "paths");
+ const paths = findJsonProperty(compilerOptions, "paths");
if (!paths || !isObjectLiteralExpression(paths.initializer)) {
changes.insertNodeAtObjectStart(tsconfig, compilerOptions, makeDefaultPaths());
return defaultTypesDirectoryName;
@@ -129,14 +129,6 @@ namespace ts.codefix {
return defaultTypesDirectoryName;
}
- function createJsonPropertyAssignment(name: string, initializer: Expression) {
- return createPropertyAssignment(createStringLiteral(name), initializer);
- }
-
- function findProperty(obj: ObjectLiteralExpression, name: string): PropertyAssignment | undefined {
- return find(obj.properties, (p): p is PropertyAssignment => isPropertyAssignment(p) && !!p.name && isStringLiteral(p.name) && p.name.text === name);
- }
-
function getInstallCommand(fileName: string, packageName: string): InstallPackageAction {
return { type: "install package", file: fileName, packageName };
}
diff --git a/src/services/codefixes/fixEnableExperimentalDecorators.ts b/src/services/codefixes/fixEnableExperimentalDecorators.ts
new file mode 100644
index 00000000000..8aeefe48a47
--- /dev/null
+++ b/src/services/codefixes/fixEnableExperimentalDecorators.ts
@@ -0,0 +1,24 @@
+/* @internal */
+namespace ts.codefix {
+ const fixId = "enableExperimentalDecorators";
+ const errorCodes = [
+ Diagnostics.Experimental_support_for_decorators_is_a_feature_that_is_subject_to_change_in_a_future_release_Set_the_experimentalDecorators_option_to_remove_this_warning.code
+ ];
+ registerCodeFix({
+ errorCodes,
+ getCodeActions: (context) => {
+ const { configFile } = context.program.getCompilerOptions();
+ if (configFile === undefined) {
+ return undefined;
+ }
+
+ const changes = textChanges.ChangeTracker.with(context, changeTracker => makeChange(changeTracker, configFile));
+ return [createCodeFixActionNoFixId(fixId, changes, Diagnostics.Enable_the_experimentalDecorators_option_in_your_configuration_file)];
+ },
+ fixIds: [fixId],
+ });
+
+ function makeChange(changeTracker: textChanges.ChangeTracker, configFile: TsConfigSourceFile) {
+ setJsonCompilerOptionValue(changeTracker, configFile, "experimentalDecorators", createTrue());
+ }
+}
diff --git a/src/services/codefixes/helpers.ts b/src/services/codefixes/helpers.ts
index 461771c0b5e..66488d5d697 100644
--- a/src/services/codefixes/helpers.ts
+++ b/src/services/codefixes/helpers.ts
@@ -249,4 +249,46 @@ namespace ts.codefix {
}
return undefined;
}
+
+ export function setJsonCompilerOptionValue(
+ changeTracker: textChanges.ChangeTracker,
+ configFile: TsConfigSourceFile,
+ optionName: string,
+ optionValue: Expression,
+ ) {
+ const tsconfigObjectLiteral = getTsConfigObjectLiteralExpression(configFile);
+ if (!tsconfigObjectLiteral) return undefined;
+
+ const compilerOptionsProperty = findJsonProperty(tsconfigObjectLiteral, "compilerOptions");
+ if (compilerOptionsProperty === undefined) {
+ changeTracker.insertNodeAtObjectStart(configFile, tsconfigObjectLiteral, createJsonPropertyAssignment(
+ "compilerOptions",
+ createObjectLiteral([
+ createJsonPropertyAssignment(optionName, optionValue),
+ ])));
+ return;
+ }
+
+ const compilerOptions = compilerOptionsProperty.initializer;
+ if (!isObjectLiteralExpression(compilerOptions)) {
+ return;
+ }
+
+ const optionProperty = findJsonProperty(compilerOptions, optionName);
+
+ if (optionProperty === undefined) {
+ changeTracker.insertNodeAtObjectStart(configFile, compilerOptions, createJsonPropertyAssignment(optionName, optionValue));
+ }
+ else {
+ changeTracker.replaceNode(configFile, optionProperty.initializer, optionValue);
+ }
+ }
+
+ export function createJsonPropertyAssignment(name: string, initializer: Expression) {
+ return createPropertyAssignment(createStringLiteral(name), initializer);
+ }
+
+ export function findJsonProperty(obj: ObjectLiteralExpression, name: string): PropertyAssignment | undefined {
+ return find(obj.properties, (p): p is PropertyAssignment => isPropertyAssignment(p) && !!p.name && isStringLiteral(p.name) && p.name.text === name);
+ }
}
diff --git a/src/services/completions.ts b/src/services/completions.ts
index bbcee4dd47e..8203b66549b 100644
--- a/src/services/completions.ts
+++ b/src/services/completions.ts
@@ -104,7 +104,7 @@ namespace ts.Completions {
getJSCompletionEntries(sourceFile, location!.pos, uniqueNames, compilerOptions.target!, entries); // TODO: GH#18217
}
else {
- if ((!symbols || symbols.length === 0) && keywordFilters === KeywordCompletionFilters.None) {
+ if (!isNewIdentifierLocation && (!symbols || symbols.length === 0) && keywordFilters === KeywordCompletionFilters.None) {
return undefined;
}
diff --git a/src/services/tsconfig.json b/src/services/tsconfig.json
index 15044416f84..21be663055a 100644
--- a/src/services/tsconfig.json
+++ b/src/services/tsconfig.json
@@ -61,6 +61,7 @@
"codefixes/fixClassDoesntImplementInheritedAbstractMember.ts",
"codefixes/fixClassSuperMustPrecedeThisAccess.ts",
"codefixes/fixConstructorForDerivedNeedSuperCall.ts",
+ "codefixes/fixEnableExperimentalDecorators.ts",
"codefixes/fixExtendsInterfaceBecomesImplements.ts",
"codefixes/fixForgottenThisPropertyAccess.ts",
"codefixes/fixUnusedIdentifier.ts",
diff --git a/tests/baselines/reference/checkSuperCallBeforeThisAccessing9.errors.txt b/tests/baselines/reference/checkSuperCallBeforeThisAccessing9.errors.txt
new file mode 100644
index 00000000000..5d67f88c847
--- /dev/null
+++ b/tests/baselines/reference/checkSuperCallBeforeThisAccessing9.errors.txt
@@ -0,0 +1,22 @@
+tests/cases/compiler/noSuperInJSDocExtends.js(14,9): error TS2335: 'super' can only be referenced in a derived class.
+
+
+==== tests/cases/compiler/noSuperInJSDocExtends.js (1 errors) ====
+ class Based { }
+ /** @extends {Based} */
+ class Derived {
+ constructor() {
+ this;
+ this.x = 10;
+ var that = this;
+ }
+ }
+
+ /** @extends {Based} */
+ class Derived2 {
+ constructor() {
+ super();
+ ~~~~~
+!!! error TS2335: 'super' can only be referenced in a derived class.
+ }
+ }
\ No newline at end of file
diff --git a/tests/baselines/reference/checkSuperCallBeforeThisAccessing9.symbols b/tests/baselines/reference/checkSuperCallBeforeThisAccessing9.symbols
new file mode 100644
index 00000000000..f900a4986eb
--- /dev/null
+++ b/tests/baselines/reference/checkSuperCallBeforeThisAccessing9.symbols
@@ -0,0 +1,31 @@
+=== tests/cases/compiler/noSuperInJSDocExtends.js ===
+class Based { }
+>Based : Symbol(Based, Decl(noSuperInJSDocExtends.js, 0, 0))
+
+/** @extends {Based} */
+class Derived {
+>Derived : Symbol(Derived, Decl(noSuperInJSDocExtends.js, 0, 15))
+
+ constructor() {
+ this;
+>this : Symbol(Derived, Decl(noSuperInJSDocExtends.js, 0, 15))
+
+ this.x = 10;
+>this.x : Symbol(Derived.x, Decl(noSuperInJSDocExtends.js, 4, 13))
+>this : Symbol(Derived, Decl(noSuperInJSDocExtends.js, 0, 15))
+>x : Symbol(Derived.x, Decl(noSuperInJSDocExtends.js, 4, 13))
+
+ var that = this;
+>that : Symbol(that, Decl(noSuperInJSDocExtends.js, 6, 11))
+>this : Symbol(Derived, Decl(noSuperInJSDocExtends.js, 0, 15))
+ }
+}
+
+/** @extends {Based} */
+class Derived2 {
+>Derived2 : Symbol(Derived2, Decl(noSuperInJSDocExtends.js, 8, 1))
+
+ constructor() {
+ super();
+ }
+}
diff --git a/tests/baselines/reference/checkSuperCallBeforeThisAccessing9.types b/tests/baselines/reference/checkSuperCallBeforeThisAccessing9.types
new file mode 100644
index 00000000000..577256400b2
--- /dev/null
+++ b/tests/baselines/reference/checkSuperCallBeforeThisAccessing9.types
@@ -0,0 +1,35 @@
+=== tests/cases/compiler/noSuperInJSDocExtends.js ===
+class Based { }
+>Based : Based
+
+/** @extends {Based} */
+class Derived {
+>Derived : Derived
+
+ constructor() {
+ this;
+>this : this
+
+ this.x = 10;
+>this.x = 10 : 10
+>this.x : number
+>this : this
+>x : number
+>10 : 10
+
+ var that = this;
+>that : this
+>this : this
+ }
+}
+
+/** @extends {Based} */
+class Derived2 {
+>Derived2 : Derived2
+
+ constructor() {
+ super();
+>super() : void
+>super : any
+ }
+}
diff --git a/tests/baselines/reference/conditionalTypes1.errors.txt b/tests/baselines/reference/conditionalTypes1.errors.txt
index 8bf05c043ce..62239eca7b8 100644
--- a/tests/baselines/reference/conditionalTypes1.errors.txt
+++ b/tests/baselines/reference/conditionalTypes1.errors.txt
@@ -471,4 +471,12 @@ tests/cases/conformance/types/conditional/conditionalTypes1.ts(288,43): error TS
var a = {o: 1, b: 2, c: [{a: 1, c: '213'}]}
assign(a, {o: 2, c: {0: {a: 2, c: '213123'}}})
+
+ // Repros from #23843
+
+ type Weird1 = ((a: U) => never) extends
+ ((a: U) => never) ? never : never;
+
+ type Weird2 = ((a: U) => U) extends
+ ((a: U) => infer T) ? T : never;
\ No newline at end of file
diff --git a/tests/baselines/reference/conditionalTypes1.js b/tests/baselines/reference/conditionalTypes1.js
index 552a80d58a5..7ce19ce17e7 100644
--- a/tests/baselines/reference/conditionalTypes1.js
+++ b/tests/baselines/reference/conditionalTypes1.js
@@ -351,6 +351,14 @@ declare function assign(o: T, a: RecursivePartial): void;
var a = {o: 1, b: 2, c: [{a: 1, c: '213'}]}
assign(a, {o: 2, c: {0: {a: 2, c: '213123'}}})
+
+// Repros from #23843
+
+type Weird1 = ((a: U) => never) extends
+ ((a: U) => never) ? never : never;
+
+type Weird2 = ((a: U) => U) extends
+ ((a: U) => infer T) ? T : never;
//// [conditionalTypes1.js]
@@ -715,3 +723,5 @@ declare var a: {
c: string;
}[];
};
+declare type Weird1 = ((a: U) => never) extends ((a: U) => never) ? never : never;
+declare type Weird2 = ((a: U) => U) extends ((a: U) => infer T) ? T : never;
diff --git a/tests/baselines/reference/conditionalTypes1.symbols b/tests/baselines/reference/conditionalTypes1.symbols
index 19f0ae83890..e5c6ae3d6c7 100644
--- a/tests/baselines/reference/conditionalTypes1.symbols
+++ b/tests/baselines/reference/conditionalTypes1.symbols
@@ -1371,3 +1371,30 @@ assign(a, {o: 2, c: {0: {a: 2, c: '213123'}}})
>a : Symbol(a, Decl(conditionalTypes1.ts, 351, 25))
>c : Symbol(c, Decl(conditionalTypes1.ts, 351, 30))
+// Repros from #23843
+
+type Weird1 = ((a: U) => never) extends
+>Weird1 : Symbol(Weird1, Decl(conditionalTypes1.ts, 351, 46))
+>U : Symbol(U, Decl(conditionalTypes1.ts, 355, 16))
+>a : Symbol(a, Decl(conditionalTypes1.ts, 355, 35))
+>U : Symbol(U, Decl(conditionalTypes1.ts, 355, 16))
+
+ ((a: U) => never) ? never : never;
+>U : Symbol(U, Decl(conditionalTypes1.ts, 356, 6))
+>a : Symbol(a, Decl(conditionalTypes1.ts, 356, 22))
+>U : Symbol(U, Decl(conditionalTypes1.ts, 356, 6))
+
+type Weird2 = ((a: U) => U) extends
+>Weird2 : Symbol(Weird2, Decl(conditionalTypes1.ts, 356, 54))
+>U : Symbol(U, Decl(conditionalTypes1.ts, 358, 16))
+>a : Symbol(a, Decl(conditionalTypes1.ts, 358, 35))
+>U : Symbol(U, Decl(conditionalTypes1.ts, 358, 16))
+>U : Symbol(U, Decl(conditionalTypes1.ts, 358, 16))
+
+ ((a: U) => infer T) ? T : never;
+>U : Symbol(U, Decl(conditionalTypes1.ts, 359, 6))
+>a : Symbol(a, Decl(conditionalTypes1.ts, 359, 22))
+>U : Symbol(U, Decl(conditionalTypes1.ts, 359, 6))
+>T : Symbol(T, Decl(conditionalTypes1.ts, 359, 36))
+>T : Symbol(T, Decl(conditionalTypes1.ts, 359, 36))
+
diff --git a/tests/baselines/reference/conditionalTypes1.types b/tests/baselines/reference/conditionalTypes1.types
index 00d1965eea4..08fdb4b2f29 100644
--- a/tests/baselines/reference/conditionalTypes1.types
+++ b/tests/baselines/reference/conditionalTypes1.types
@@ -1054,3 +1054,21 @@ assign(a, {o: 2, c: {0: {a: 2, c: '213123'}}})
>c : string
>'213123' : "213123"
+// Repros from #23843
+
+type Weird1 = ((a: U) => never) extends
+>Weird1 : never
+>a : U
+
+ ((a: U) => never) ? never : never;
+>true : true
+>a : U
+
+type Weird2 = ((a: U) => U) extends
+>Weird2 : boolean
+>a : U
+
+ ((a: U) => infer T) ? T : never;
+>true : true
+>a : U
+
diff --git a/tests/baselines/reference/decoratorWithNegativeLiteralTypeNoCrash.js b/tests/baselines/reference/decoratorWithNegativeLiteralTypeNoCrash.js
new file mode 100644
index 00000000000..57b548cdf99
--- /dev/null
+++ b/tests/baselines/reference/decoratorWithNegativeLiteralTypeNoCrash.js
@@ -0,0 +1,28 @@
+//// [decoratorWithNegativeLiteralTypeNoCrash.ts]
+class A {
+ @decorator
+ public field1: -1 = -1;
+}
+function decorator(target: any, field: any) {}
+
+//// [decoratorWithNegativeLiteralTypeNoCrash.js]
+var __decorate = (this && this.__decorate) || function (decorators, target, key, desc) {
+ var c = arguments.length, r = c < 3 ? target : desc === null ? desc = Object.getOwnPropertyDescriptor(target, key) : desc, d;
+ if (typeof Reflect === "object" && typeof Reflect.decorate === "function") r = Reflect.decorate(decorators, target, key, desc);
+ else for (var i = decorators.length - 1; i >= 0; i--) if (d = decorators[i]) r = (c < 3 ? d(r) : c > 3 ? d(target, key, r) : d(target, key)) || r;
+ return c > 3 && r && Object.defineProperty(target, key, r), r;
+};
+var __metadata = (this && this.__metadata) || function (k, v) {
+ if (typeof Reflect === "object" && typeof Reflect.metadata === "function") return Reflect.metadata(k, v);
+};
+var A = /** @class */ (function () {
+ function A() {
+ this.field1 = -1;
+ }
+ __decorate([
+ decorator,
+ __metadata("design:type", Number)
+ ], A.prototype, "field1", void 0);
+ return A;
+}());
+function decorator(target, field) { }
diff --git a/tests/baselines/reference/decoratorWithNegativeLiteralTypeNoCrash.symbols b/tests/baselines/reference/decoratorWithNegativeLiteralTypeNoCrash.symbols
new file mode 100644
index 00000000000..e89854249a0
--- /dev/null
+++ b/tests/baselines/reference/decoratorWithNegativeLiteralTypeNoCrash.symbols
@@ -0,0 +1,15 @@
+=== tests/cases/compiler/decoratorWithNegativeLiteralTypeNoCrash.ts ===
+class A {
+>A : Symbol(A, Decl(decoratorWithNegativeLiteralTypeNoCrash.ts, 0, 0))
+
+ @decorator
+>decorator : Symbol(decorator, Decl(decoratorWithNegativeLiteralTypeNoCrash.ts, 3, 1))
+
+ public field1: -1 = -1;
+>field1 : Symbol(A.field1, Decl(decoratorWithNegativeLiteralTypeNoCrash.ts, 0, 9))
+}
+function decorator(target: any, field: any) {}
+>decorator : Symbol(decorator, Decl(decoratorWithNegativeLiteralTypeNoCrash.ts, 3, 1))
+>target : Symbol(target, Decl(decoratorWithNegativeLiteralTypeNoCrash.ts, 4, 19))
+>field : Symbol(field, Decl(decoratorWithNegativeLiteralTypeNoCrash.ts, 4, 31))
+
diff --git a/tests/baselines/reference/decoratorWithNegativeLiteralTypeNoCrash.types b/tests/baselines/reference/decoratorWithNegativeLiteralTypeNoCrash.types
new file mode 100644
index 00000000000..45f4ff03451
--- /dev/null
+++ b/tests/baselines/reference/decoratorWithNegativeLiteralTypeNoCrash.types
@@ -0,0 +1,19 @@
+=== tests/cases/compiler/decoratorWithNegativeLiteralTypeNoCrash.ts ===
+class A {
+>A : A
+
+ @decorator
+>decorator : (target: any, field: any) => void
+
+ public field1: -1 = -1;
+>field1 : -1
+>-1 : -1
+>1 : 1
+>-1 : -1
+>1 : 1
+}
+function decorator(target: any, field: any) {}
+>decorator : (target: any, field: any) => void
+>target : any
+>field : any
+
diff --git a/tests/baselines/reference/es6ExportEqualsInterop.errors.txt b/tests/baselines/reference/es6ExportEqualsInterop.errors.txt
index 4675136d081..5b8e83b3cca 100644
--- a/tests/baselines/reference/es6ExportEqualsInterop.errors.txt
+++ b/tests/baselines/reference/es6ExportEqualsInterop.errors.txt
@@ -11,24 +11,24 @@ tests/cases/compiler/main.ts(33,8): error TS1192: Module '"function"' has no def
tests/cases/compiler/main.ts(34,8): error TS1192: Module '"function-module"' has no default export.
tests/cases/compiler/main.ts(35,8): error TS1192: Module '"class"' has no default export.
tests/cases/compiler/main.ts(36,8): error TS1192: Module '"class-module"' has no default export.
-tests/cases/compiler/main.ts(39,21): error TS2497: Module '"interface"' resolves to a non-module entity and cannot be imported using this construct.
-tests/cases/compiler/main.ts(45,21): error TS2497: Module '"function"' resolves to a non-module entity and cannot be imported using this construct.
-tests/cases/compiler/main.ts(47,21): error TS2497: Module '"class"' resolves to a non-module entity and cannot be imported using this construct.
+tests/cases/compiler/main.ts(39,21): error TS2497: This module can only be referenced with ECMAScript imports/exports by turning on the 'esModuleInterop' flag and referencing its default export.
+tests/cases/compiler/main.ts(45,21): error TS2497: This module can only be referenced with ECMAScript imports/exports by turning on the 'esModuleInterop' flag and referencing its default export.
+tests/cases/compiler/main.ts(47,21): error TS2497: This module can only be referenced with ECMAScript imports/exports by turning on the 'esModuleInterop' flag and referencing its default export.
tests/cases/compiler/main.ts(50,1): error TS2693: 'y1' only refers to a type, but is being used as a value here.
tests/cases/compiler/main.ts(56,4): error TS2339: Property 'a' does not exist on type '() => any'.
tests/cases/compiler/main.ts(58,4): error TS2339: Property 'a' does not exist on type 'typeof Foo'.
tests/cases/compiler/main.ts(62,10): error TS2305: Module '"interface"' has no exported member 'a'.
-tests/cases/compiler/main.ts(62,25): error TS2497: Module '"interface"' resolves to a non-module entity and cannot be imported using this construct.
+tests/cases/compiler/main.ts(62,25): error TS2497: This module can only be referenced with ECMAScript imports/exports by turning on the 'esModuleInterop' flag and referencing its default export.
tests/cases/compiler/main.ts(68,10): error TS2305: Module '"function"' has no exported member 'a'.
-tests/cases/compiler/main.ts(68,25): error TS2497: Module '"function"' resolves to a non-module entity and cannot be imported using this construct.
+tests/cases/compiler/main.ts(68,25): error TS2497: This module can only be referenced with ECMAScript imports/exports by turning on the 'esModuleInterop' flag and referencing its default export.
tests/cases/compiler/main.ts(70,10): error TS2305: Module '"class"' has no exported member 'a'.
-tests/cases/compiler/main.ts(70,25): error TS2497: Module '"class"' resolves to a non-module entity and cannot be imported using this construct.
+tests/cases/compiler/main.ts(70,25): error TS2497: This module can only be referenced with ECMAScript imports/exports by turning on the 'esModuleInterop' flag and referencing its default export.
tests/cases/compiler/main.ts(85,10): error TS2305: Module '"interface"' has no exported member 'a'.
-tests/cases/compiler/main.ts(85,25): error TS2497: Module '"interface"' resolves to a non-module entity and cannot be imported using this construct.
+tests/cases/compiler/main.ts(85,25): error TS2497: This module can only be referenced with ECMAScript imports/exports by turning on the 'esModuleInterop' flag and referencing its default export.
tests/cases/compiler/main.ts(91,10): error TS2305: Module '"function"' has no exported member 'a'.
-tests/cases/compiler/main.ts(91,25): error TS2497: Module '"function"' resolves to a non-module entity and cannot be imported using this construct.
+tests/cases/compiler/main.ts(91,25): error TS2497: This module can only be referenced with ECMAScript imports/exports by turning on the 'esModuleInterop' flag and referencing its default export.
tests/cases/compiler/main.ts(93,10): error TS2305: Module '"class"' has no exported member 'a'.
-tests/cases/compiler/main.ts(93,25): error TS2497: Module '"class"' resolves to a non-module entity and cannot be imported using this construct.
+tests/cases/compiler/main.ts(93,25): error TS2497: This module can only be referenced with ECMAScript imports/exports by turning on the 'esModuleInterop' flag and referencing its default export.
tests/cases/compiler/main.ts(97,15): error TS2498: Module '"interface"' uses 'export =' and cannot be used with 'export *'.
tests/cases/compiler/main.ts(98,15): error TS2498: Module '"variable"' uses 'export =' and cannot be used with 'export *'.
tests/cases/compiler/main.ts(99,15): error TS2498: Module '"interface-variable"' uses 'export =' and cannot be used with 'export *'.
@@ -108,7 +108,7 @@ tests/cases/compiler/main.ts(106,15): error TS2498: Module '"class-module"' uses
// namespace import
import * as y1 from "interface";
~~~~~~~~~~~
-!!! error TS2497: Module '"interface"' resolves to a non-module entity and cannot be imported using this construct.
+!!! error TS2497: This module can only be referenced with ECMAScript imports/exports by turning on the 'esModuleInterop' flag and referencing its default export.
import * as y2 from "variable";
import * as y3 from "interface-variable";
import * as y4 from "module";
@@ -116,11 +116,11 @@ tests/cases/compiler/main.ts(106,15): error TS2498: Module '"class-module"' uses
import * as y6 from "variable-module";
import * as y7 from "function";
~~~~~~~~~~
-!!! error TS2497: Module '"function"' resolves to a non-module entity and cannot be imported using this construct.
+!!! error TS2497: This module can only be referenced with ECMAScript imports/exports by turning on the 'esModuleInterop' flag and referencing its default export.
import * as y8 from "function-module";
import * as y9 from "class";
~~~~~~~
-!!! error TS2497: Module '"class"' resolves to a non-module entity and cannot be imported using this construct.
+!!! error TS2497: This module can only be referenced with ECMAScript imports/exports by turning on the 'esModuleInterop' flag and referencing its default export.
import * as y0 from "class-module";
y1.a;
@@ -145,7 +145,7 @@ tests/cases/compiler/main.ts(106,15): error TS2498: Module '"class-module"' uses
~
!!! error TS2305: Module '"interface"' has no exported member 'a'.
~~~~~~~~~~~
-!!! error TS2497: Module '"interface"' resolves to a non-module entity and cannot be imported using this construct.
+!!! error TS2497: This module can only be referenced with ECMAScript imports/exports by turning on the 'esModuleInterop' flag and referencing its default export.
import { a as a2 } from "variable";
import { a as a3 } from "interface-variable";
import { a as a4 } from "module";
@@ -155,13 +155,13 @@ tests/cases/compiler/main.ts(106,15): error TS2498: Module '"class-module"' uses
~
!!! error TS2305: Module '"function"' has no exported member 'a'.
~~~~~~~~~~
-!!! error TS2497: Module '"function"' resolves to a non-module entity and cannot be imported using this construct.
+!!! error TS2497: This module can only be referenced with ECMAScript imports/exports by turning on the 'esModuleInterop' flag and referencing its default export.
import { a as a8 } from "function-module";
import { a as a9 } from "class";
~
!!! error TS2305: Module '"class"' has no exported member 'a'.
~~~~~~~
-!!! error TS2497: Module '"class"' resolves to a non-module entity and cannot be imported using this construct.
+!!! error TS2497: This module can only be referenced with ECMAScript imports/exports by turning on the 'esModuleInterop' flag and referencing its default export.
import { a as a0 } from "class-module";
a1;
@@ -180,7 +180,7 @@ tests/cases/compiler/main.ts(106,15): error TS2498: Module '"class-module"' uses
~
!!! error TS2305: Module '"interface"' has no exported member 'a'.
~~~~~~~~~~~
-!!! error TS2497: Module '"interface"' resolves to a non-module entity and cannot be imported using this construct.
+!!! error TS2497: This module can only be referenced with ECMAScript imports/exports by turning on the 'esModuleInterop' flag and referencing its default export.
export { a as a2 } from "variable";
export { a as a3 } from "interface-variable";
export { a as a4 } from "module";
@@ -190,13 +190,13 @@ tests/cases/compiler/main.ts(106,15): error TS2498: Module '"class-module"' uses
~
!!! error TS2305: Module '"function"' has no exported member 'a'.
~~~~~~~~~~
-!!! error TS2497: Module '"function"' resolves to a non-module entity and cannot be imported using this construct.
+!!! error TS2497: This module can only be referenced with ECMAScript imports/exports by turning on the 'esModuleInterop' flag and referencing its default export.
export { a as a8 } from "function-module";
export { a as a9 } from "class";
~
!!! error TS2305: Module '"class"' has no exported member 'a'.
~~~~~~~
-!!! error TS2497: Module '"class"' resolves to a non-module entity and cannot be imported using this construct.
+!!! error TS2497: This module can only be referenced with ECMAScript imports/exports by turning on the 'esModuleInterop' flag and referencing its default export.
export { a as a0 } from "class-module";
// export-star
diff --git a/tests/baselines/reference/es6ImportEqualsExportModuleCommonJsError.errors.txt b/tests/baselines/reference/es6ImportEqualsExportModuleCommonJsError.errors.txt
new file mode 100644
index 00000000000..3d8301d3ca1
--- /dev/null
+++ b/tests/baselines/reference/es6ImportEqualsExportModuleCommonJsError.errors.txt
@@ -0,0 +1,15 @@
+tests/cases/compiler/main.ts(1,20): error TS2497: This module can only be referenced with ECMAScript imports/exports by turning on the 'esModuleInterop' flag and referencing its default export.
+
+
+==== tests/cases/compiler/a.ts (0 errors) ====
+ class a { }
+ export = a;
+
+==== tests/cases/compiler/main.ts (1 errors) ====
+ import * as a from "./a";
+ ~~~~~
+!!! error TS2497: This module can only be referenced with ECMAScript imports/exports by turning on the 'esModuleInterop' flag and referencing its default export.
+ a;
+
+
+
\ No newline at end of file
diff --git a/tests/baselines/reference/es6ImportEqualsExportModuleCommonJsError.js b/tests/baselines/reference/es6ImportEqualsExportModuleCommonJsError.js
new file mode 100644
index 00000000000..37f127721ce
--- /dev/null
+++ b/tests/baselines/reference/es6ImportEqualsExportModuleCommonJsError.js
@@ -0,0 +1,26 @@
+//// [tests/cases/compiler/es6ImportEqualsExportModuleCommonJsError.ts] ////
+
+//// [a.ts]
+class a { }
+export = a;
+
+//// [main.ts]
+import * as a from "./a";
+a;
+
+
+
+
+//// [a.js]
+"use strict";
+var a = /** @class */ (function () {
+ function a() {
+ }
+ return a;
+}());
+module.exports = a;
+//// [main.js]
+"use strict";
+exports.__esModule = true;
+var a = require("./a");
+a;
diff --git a/tests/baselines/reference/es6ImportEqualsExportModuleCommonJsError.symbols b/tests/baselines/reference/es6ImportEqualsExportModuleCommonJsError.symbols
new file mode 100644
index 00000000000..071f2fb5725
--- /dev/null
+++ b/tests/baselines/reference/es6ImportEqualsExportModuleCommonJsError.symbols
@@ -0,0 +1,16 @@
+=== tests/cases/compiler/a.ts ===
+class a { }
+>a : Symbol(a, Decl(a.ts, 0, 0))
+
+export = a;
+>a : Symbol(a, Decl(a.ts, 0, 0))
+
+=== tests/cases/compiler/main.ts ===
+import * as a from "./a";
+>a : Symbol(a, Decl(main.ts, 0, 6))
+
+a;
+>a : Symbol(a, Decl(main.ts, 0, 6))
+
+
+
diff --git a/tests/baselines/reference/es6ImportEqualsExportModuleCommonJsError.types b/tests/baselines/reference/es6ImportEqualsExportModuleCommonJsError.types
new file mode 100644
index 00000000000..652d7d6241b
--- /dev/null
+++ b/tests/baselines/reference/es6ImportEqualsExportModuleCommonJsError.types
@@ -0,0 +1,16 @@
+=== tests/cases/compiler/a.ts ===
+class a { }
+>a : a
+
+export = a;
+>a : a
+
+=== tests/cases/compiler/main.ts ===
+import * as a from "./a";
+>a : typeof a
+
+a;
+>a : typeof a
+
+
+
diff --git a/tests/baselines/reference/es6ImportEqualsExportModuleEs2015Error.errors.txt b/tests/baselines/reference/es6ImportEqualsExportModuleEs2015Error.errors.txt
new file mode 100644
index 00000000000..94c05e068f5
--- /dev/null
+++ b/tests/baselines/reference/es6ImportEqualsExportModuleEs2015Error.errors.txt
@@ -0,0 +1,18 @@
+tests/cases/compiler/a.ts(2,1): error TS1203: Export assignment cannot be used when targeting ECMAScript modules. Consider using 'export default' or another module format instead.
+tests/cases/compiler/main.ts(1,20): error TS2497: This module can only be referenced with ECMAScript imports/exports by turning on the 'allowSyntheticDefaultImports' flag and referencing its default export.
+
+
+==== tests/cases/compiler/a.ts (1 errors) ====
+ class a { }
+ export = a;
+ ~~~~~~~~~~~
+!!! error TS1203: Export assignment cannot be used when targeting ECMAScript modules. Consider using 'export default' or another module format instead.
+
+==== tests/cases/compiler/main.ts (1 errors) ====
+ import * as a from "./a";
+ ~~~~~
+!!! error TS2497: This module can only be referenced with ECMAScript imports/exports by turning on the 'allowSyntheticDefaultImports' flag and referencing its default export.
+ a;
+
+
+
\ No newline at end of file
diff --git a/tests/baselines/reference/es6ImportEqualsExportModuleEs2015Error.js b/tests/baselines/reference/es6ImportEqualsExportModuleEs2015Error.js
new file mode 100644
index 00000000000..603f158946e
--- /dev/null
+++ b/tests/baselines/reference/es6ImportEqualsExportModuleEs2015Error.js
@@ -0,0 +1,22 @@
+//// [tests/cases/compiler/es6ImportEqualsExportModuleEs2015Error.ts] ////
+
+//// [a.ts]
+class a { }
+export = a;
+
+//// [main.ts]
+import * as a from "./a";
+a;
+
+
+
+
+//// [a.js]
+var a = /** @class */ (function () {
+ function a() {
+ }
+ return a;
+}());
+//// [main.js]
+import * as a from "./a";
+a;
diff --git a/tests/baselines/reference/es6ImportEqualsExportModuleEs2015Error.symbols b/tests/baselines/reference/es6ImportEqualsExportModuleEs2015Error.symbols
new file mode 100644
index 00000000000..071f2fb5725
--- /dev/null
+++ b/tests/baselines/reference/es6ImportEqualsExportModuleEs2015Error.symbols
@@ -0,0 +1,16 @@
+=== tests/cases/compiler/a.ts ===
+class a { }
+>a : Symbol(a, Decl(a.ts, 0, 0))
+
+export = a;
+>a : Symbol(a, Decl(a.ts, 0, 0))
+
+=== tests/cases/compiler/main.ts ===
+import * as a from "./a";
+>a : Symbol(a, Decl(main.ts, 0, 6))
+
+a;
+>a : Symbol(a, Decl(main.ts, 0, 6))
+
+
+
diff --git a/tests/baselines/reference/es6ImportEqualsExportModuleEs2015Error.types b/tests/baselines/reference/es6ImportEqualsExportModuleEs2015Error.types
new file mode 100644
index 00000000000..652d7d6241b
--- /dev/null
+++ b/tests/baselines/reference/es6ImportEqualsExportModuleEs2015Error.types
@@ -0,0 +1,16 @@
+=== tests/cases/compiler/a.ts ===
+class a { }
+>a : a
+
+export = a;
+>a : a
+
+=== tests/cases/compiler/main.ts ===
+import * as a from "./a";
+>a : typeof a
+
+a;
+>a : typeof a
+
+
+
diff --git a/tests/baselines/reference/libReferenceNoLib.js b/tests/baselines/reference/libReferenceNoLib.js
new file mode 100644
index 00000000000..21d1cbbe177
--- /dev/null
+++ b/tests/baselines/reference/libReferenceNoLib.js
@@ -0,0 +1,51 @@
+//// [tests/cases/conformance/declarationEmit/libReferenceNoLib.ts] ////
+
+//// [fakelib.ts]
+// Test that passing noLib disables resolution.
+
+interface Object { }
+interface Array { }
+interface String { }
+interface Boolean { }
+interface Number { }
+interface Function { }
+interface RegExp { }
+interface IArguments { }
+
+
+//// [file1.ts]
+///
+export declare interface HTMLElement { field: string; }
+export const elem: HTMLElement = { field: 'a' };
+
+
+//// [fakelib.js]
+// Test that passing noLib disables resolution.
+//// [file1.js]
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.elem = { field: 'a' };
+
+
+//// [fakelib.d.ts]
+interface Object {
+}
+interface Array {
+}
+interface String {
+}
+interface Boolean {
+}
+interface Number {
+}
+interface Function {
+}
+interface RegExp {
+}
+interface IArguments {
+}
+//// [file1.d.ts]
+export declare interface HTMLElement {
+ field: string;
+}
+export declare const elem: HTMLElement;
diff --git a/tests/baselines/reference/libReferenceNoLib.symbols b/tests/baselines/reference/libReferenceNoLib.symbols
new file mode 100644
index 00000000000..5f180fd1eed
--- /dev/null
+++ b/tests/baselines/reference/libReferenceNoLib.symbols
@@ -0,0 +1,40 @@
+=== tests/cases/conformance/declarationEmit/fakelib.ts ===
+// Test that passing noLib disables resolution.
+
+interface Object { }
+>Object : Symbol(Object, Decl(fakelib.ts, 0, 0))
+
+interface Array { }
+>Array : Symbol(Array, Decl(fakelib.ts, 2, 20))
+>T : Symbol(T, Decl(fakelib.ts, 3, 16))
+
+interface String { }
+>String : Symbol(String, Decl(fakelib.ts, 3, 22))
+
+interface Boolean { }
+>Boolean : Symbol(Boolean, Decl(fakelib.ts, 4, 20))
+
+interface Number { }
+>Number : Symbol(Number, Decl(fakelib.ts, 5, 21))
+
+interface Function { }
+>Function : Symbol(Function, Decl(fakelib.ts, 6, 20))
+
+interface RegExp { }
+>RegExp : Symbol(RegExp, Decl(fakelib.ts, 7, 22))
+
+interface IArguments { }
+>IArguments : Symbol(IArguments, Decl(fakelib.ts, 8, 20))
+
+
+=== tests/cases/conformance/declarationEmit/file1.ts ===
+///
+export declare interface HTMLElement { field: string; }
+>HTMLElement : Symbol(HTMLElement, Decl(file1.ts, 0, 0))
+>field : Symbol(HTMLElement.field, Decl(file1.ts, 1, 38))
+
+export const elem: HTMLElement = { field: 'a' };
+>elem : Symbol(elem, Decl(file1.ts, 2, 12))
+>HTMLElement : Symbol(HTMLElement, Decl(file1.ts, 0, 0))
+>field : Symbol(field, Decl(file1.ts, 2, 34))
+
diff --git a/tests/baselines/reference/libReferenceNoLib.types b/tests/baselines/reference/libReferenceNoLib.types
new file mode 100644
index 00000000000..0b2733c2265
--- /dev/null
+++ b/tests/baselines/reference/libReferenceNoLib.types
@@ -0,0 +1,24 @@
+=== tests/cases/conformance/declarationEmit/fakelib.ts ===
+// Test that passing noLib disables resolution.
+No type information for this code.
+No type information for this code.interface Object { }
+No type information for this code.interface Array { }
+No type information for this code.interface String { }
+No type information for this code.interface Boolean { }
+No type information for this code.interface Number { }
+No type information for this code.interface Function { }
+No type information for this code.interface RegExp { }
+No type information for this code.interface IArguments { }
+No type information for this code.
+No type information for this code.
+No type information for this code.=== tests/cases/conformance/declarationEmit/file1.ts ===
+///
+export declare interface HTMLElement { field: string; }
+>field : string
+
+export const elem: HTMLElement = { field: 'a' };
+>elem : HTMLElement
+>{ field: 'a' } : { field: string; }
+>field : string
+>'a' : "a"
+
diff --git a/tests/baselines/reference/libReferenceNoLibBundle.js b/tests/baselines/reference/libReferenceNoLibBundle.js
new file mode 100644
index 00000000000..a881f11a8a1
--- /dev/null
+++ b/tests/baselines/reference/libReferenceNoLibBundle.js
@@ -0,0 +1,53 @@
+//// [tests/cases/conformance/declarationEmit/libReferenceNoLibBundle.ts] ////
+
+//// [fakelib.ts]
+// Test that passing noLib disables resolution.
+
+interface Object { }
+interface Array { }
+interface String { }
+interface Boolean { }
+interface Number { }
+interface Function { }
+interface RegExp { }
+interface IArguments { }
+
+
+//// [file1.ts]
+///
+export declare interface HTMLElement { field: string; }
+export const elem: HTMLElement = { field: 'a' };
+
+
+//// [bundle.js]
+// Test that passing noLib disables resolution.
+define("file1", ["require", "exports"], function (require, exports) {
+ "use strict";
+ Object.defineProperty(exports, "__esModule", { value: true });
+ exports.elem = { field: 'a' };
+});
+
+
+//// [bundle.d.ts]
+interface Object {
+}
+interface Array {
+}
+interface String {
+}
+interface Boolean {
+}
+interface Number {
+}
+interface Function {
+}
+interface RegExp {
+}
+interface IArguments {
+}
+declare module "file1" {
+ export interface HTMLElement {
+ field: string;
+ }
+ export const elem: HTMLElement;
+}
diff --git a/tests/baselines/reference/libReferenceNoLibBundle.symbols b/tests/baselines/reference/libReferenceNoLibBundle.symbols
new file mode 100644
index 00000000000..5f180fd1eed
--- /dev/null
+++ b/tests/baselines/reference/libReferenceNoLibBundle.symbols
@@ -0,0 +1,40 @@
+=== tests/cases/conformance/declarationEmit/fakelib.ts ===
+// Test that passing noLib disables resolution.
+
+interface Object { }
+>Object : Symbol(Object, Decl(fakelib.ts, 0, 0))
+
+interface Array { }
+>Array : Symbol(Array, Decl(fakelib.ts, 2, 20))
+>T : Symbol(T, Decl(fakelib.ts, 3, 16))
+
+interface String { }
+>String : Symbol(String, Decl(fakelib.ts, 3, 22))
+
+interface Boolean { }
+>Boolean : Symbol(Boolean, Decl(fakelib.ts, 4, 20))
+
+interface Number { }
+>Number : Symbol(Number, Decl(fakelib.ts, 5, 21))
+
+interface Function { }
+>Function : Symbol(Function, Decl(fakelib.ts, 6, 20))
+
+interface RegExp { }
+>RegExp : Symbol(RegExp, Decl(fakelib.ts, 7, 22))
+
+interface IArguments { }
+>IArguments : Symbol(IArguments, Decl(fakelib.ts, 8, 20))
+
+
+=== tests/cases/conformance/declarationEmit/file1.ts ===
+///
+export declare interface HTMLElement { field: string; }
+>HTMLElement : Symbol(HTMLElement, Decl(file1.ts, 0, 0))
+>field : Symbol(HTMLElement.field, Decl(file1.ts, 1, 38))
+
+export const elem: HTMLElement = { field: 'a' };
+>elem : Symbol(elem, Decl(file1.ts, 2, 12))
+>HTMLElement : Symbol(HTMLElement, Decl(file1.ts, 0, 0))
+>field : Symbol(field, Decl(file1.ts, 2, 34))
+
diff --git a/tests/baselines/reference/libReferenceNoLibBundle.types b/tests/baselines/reference/libReferenceNoLibBundle.types
new file mode 100644
index 00000000000..0b2733c2265
--- /dev/null
+++ b/tests/baselines/reference/libReferenceNoLibBundle.types
@@ -0,0 +1,24 @@
+=== tests/cases/conformance/declarationEmit/fakelib.ts ===
+// Test that passing noLib disables resolution.
+No type information for this code.
+No type information for this code.interface Object { }
+No type information for this code.interface Array { }
+No type information for this code.interface String { }
+No type information for this code.interface Boolean { }
+No type information for this code.interface Number { }
+No type information for this code.interface Function { }
+No type information for this code.interface RegExp { }
+No type information for this code.interface IArguments { }
+No type information for this code.
+No type information for this code.
+No type information for this code.=== tests/cases/conformance/declarationEmit/file1.ts ===
+///
+export declare interface HTMLElement { field: string; }
+>field : string
+
+export const elem: HTMLElement = { field: 'a' };
+>elem : HTMLElement
+>{ field: 'a' } : { field: string; }
+>field : string
+>'a' : "a"
+
diff --git a/tests/baselines/reference/nonNullReferenceMatching.js b/tests/baselines/reference/nonNullReferenceMatching.js
new file mode 100644
index 00000000000..abb0d5a96db
--- /dev/null
+++ b/tests/baselines/reference/nonNullReferenceMatching.js
@@ -0,0 +1,54 @@
+//// [nonNullReferenceMatching.ts]
+type ElementRef = (element: HTMLElement | null) => void;
+
+type ThumbProps = {
+ elementRef?: ElementRef;
+}
+
+type ComponentProps = {
+ thumbYProps?: ThumbProps;
+ thumbXProps: ThumbProps;
+}
+
+class Component {
+ props!: ComponentProps;
+ public thumbYElementRef = (ref: HTMLElement | null) => {
+ typeof this.props.thumbYProps!.elementRef === 'function' && this.props.thumbYProps!.elementRef(ref);
+
+ typeof (this.props.thumbYProps!.elementRef) === 'function' && this.props.thumbYProps!.elementRef(ref);
+
+ typeof ((this.props).thumbYProps!.elementRef)! === 'function' && this.props.thumbYProps!.elementRef(ref);
+
+ typeof this.props.thumbXProps.elementRef === 'function' && this.props.thumbXProps.elementRef(ref);
+
+ typeof this.props.thumbXProps.elementRef === 'function' && (this.props).thumbXProps.elementRef(ref);
+
+ typeof this.props.thumbXProps.elementRef === 'function' && (this.props.thumbXProps).elementRef(ref);
+
+ typeof this.props.thumbXProps.elementRef === 'function' && ((this.props)!.thumbXProps)!.elementRef(ref);
+
+ typeof (this.props.thumbXProps).elementRef === 'function' && ((this.props)!.thumbXProps)!.elementRef(ref);
+
+ typeof this.props!.thumbXProps!.elementRef === 'function' && ((this.props)!.thumbXProps)!.elementRef(ref);
+ };
+}
+
+//// [nonNullReferenceMatching.js]
+"use strict";
+var Component = /** @class */ (function () {
+ function Component() {
+ var _this = this;
+ this.thumbYElementRef = function (ref) {
+ typeof _this.props.thumbYProps.elementRef === 'function' && _this.props.thumbYProps.elementRef(ref);
+ typeof (_this.props.thumbYProps.elementRef) === 'function' && _this.props.thumbYProps.elementRef(ref);
+ typeof ((_this.props).thumbYProps.elementRef) === 'function' && _this.props.thumbYProps.elementRef(ref);
+ typeof _this.props.thumbXProps.elementRef === 'function' && _this.props.thumbXProps.elementRef(ref);
+ typeof _this.props.thumbXProps.elementRef === 'function' && (_this.props).thumbXProps.elementRef(ref);
+ typeof _this.props.thumbXProps.elementRef === 'function' && (_this.props.thumbXProps).elementRef(ref);
+ typeof _this.props.thumbXProps.elementRef === 'function' && ((_this.props).thumbXProps).elementRef(ref);
+ typeof (_this.props.thumbXProps).elementRef === 'function' && ((_this.props).thumbXProps).elementRef(ref);
+ typeof _this.props.thumbXProps.elementRef === 'function' && ((_this.props).thumbXProps).elementRef(ref);
+ };
+ }
+ return Component;
+}());
diff --git a/tests/baselines/reference/nonNullReferenceMatching.symbols b/tests/baselines/reference/nonNullReferenceMatching.symbols
new file mode 100644
index 00000000000..ee9c608cea4
--- /dev/null
+++ b/tests/baselines/reference/nonNullReferenceMatching.symbols
@@ -0,0 +1,193 @@
+=== tests/cases/compiler/nonNullReferenceMatching.ts ===
+type ElementRef = (element: HTMLElement | null) => void;
+>ElementRef : Symbol(ElementRef, Decl(nonNullReferenceMatching.ts, 0, 0))
+>element : Symbol(element, Decl(nonNullReferenceMatching.ts, 0, 19))
+>HTMLElement : Symbol(HTMLElement, Decl(lib.dom.d.ts, --, --), Decl(lib.dom.d.ts, --, --))
+
+type ThumbProps = {
+>ThumbProps : Symbol(ThumbProps, Decl(nonNullReferenceMatching.ts, 0, 56))
+
+ elementRef?: ElementRef;
+>elementRef : Symbol(elementRef, Decl(nonNullReferenceMatching.ts, 2, 19))
+>ElementRef : Symbol(ElementRef, Decl(nonNullReferenceMatching.ts, 0, 0))
+}
+
+type ComponentProps = {
+>ComponentProps : Symbol(ComponentProps, Decl(nonNullReferenceMatching.ts, 4, 1))
+
+ thumbYProps?: ThumbProps;
+>thumbYProps : Symbol(thumbYProps, Decl(nonNullReferenceMatching.ts, 6, 23))
+>ThumbProps : Symbol(ThumbProps, Decl(nonNullReferenceMatching.ts, 0, 56))
+
+ thumbXProps: ThumbProps;
+>thumbXProps : Symbol(thumbXProps, Decl(nonNullReferenceMatching.ts, 7, 29))
+>ThumbProps : Symbol(ThumbProps, Decl(nonNullReferenceMatching.ts, 0, 56))
+}
+
+class Component {
+>Component : Symbol(Component, Decl(nonNullReferenceMatching.ts, 9, 1))
+
+ props!: ComponentProps;
+>props : Symbol(Component.props, Decl(nonNullReferenceMatching.ts, 11, 17))
+>ComponentProps : Symbol(ComponentProps, Decl(nonNullReferenceMatching.ts, 4, 1))
+
+ public thumbYElementRef = (ref: HTMLElement | null) => {
+>thumbYElementRef : Symbol(Component.thumbYElementRef, Decl(nonNullReferenceMatching.ts, 12, 27))
+>ref : Symbol(ref, Decl(nonNullReferenceMatching.ts, 13, 31))
+>HTMLElement : Symbol(HTMLElement, Decl(lib.dom.d.ts, --, --), Decl(lib.dom.d.ts, --, --))
+
+ typeof this.props.thumbYProps!.elementRef === 'function' && this.props.thumbYProps!.elementRef(ref);
+>this.props.thumbYProps!.elementRef : Symbol(elementRef, Decl(nonNullReferenceMatching.ts, 2, 19))
+>this.props.thumbYProps : Symbol(thumbYProps, Decl(nonNullReferenceMatching.ts, 6, 23))
+>this.props : Symbol(Component.props, Decl(nonNullReferenceMatching.ts, 11, 17))
+>this : Symbol(Component, Decl(nonNullReferenceMatching.ts, 9, 1))
+>props : Symbol(Component.props, Decl(nonNullReferenceMatching.ts, 11, 17))
+>thumbYProps : Symbol(thumbYProps, Decl(nonNullReferenceMatching.ts, 6, 23))
+>elementRef : Symbol(elementRef, Decl(nonNullReferenceMatching.ts, 2, 19))
+>this.props.thumbYProps!.elementRef : Symbol(elementRef, Decl(nonNullReferenceMatching.ts, 2, 19))
+>this.props.thumbYProps : Symbol(thumbYProps, Decl(nonNullReferenceMatching.ts, 6, 23))
+>this.props : Symbol(Component.props, Decl(nonNullReferenceMatching.ts, 11, 17))
+>this : Symbol(Component, Decl(nonNullReferenceMatching.ts, 9, 1))
+>props : Symbol(Component.props, Decl(nonNullReferenceMatching.ts, 11, 17))
+>thumbYProps : Symbol(thumbYProps, Decl(nonNullReferenceMatching.ts, 6, 23))
+>elementRef : Symbol(elementRef, Decl(nonNullReferenceMatching.ts, 2, 19))
+>ref : Symbol(ref, Decl(nonNullReferenceMatching.ts, 13, 31))
+
+ typeof (this.props.thumbYProps!.elementRef) === 'function' && this.props.thumbYProps!.elementRef(ref);
+>this.props.thumbYProps!.elementRef : Symbol(elementRef, Decl(nonNullReferenceMatching.ts, 2, 19))
+>this.props.thumbYProps : Symbol(thumbYProps, Decl(nonNullReferenceMatching.ts, 6, 23))
+>this.props : Symbol(Component.props, Decl(nonNullReferenceMatching.ts, 11, 17))
+>this : Symbol(Component, Decl(nonNullReferenceMatching.ts, 9, 1))
+>props : Symbol(Component.props, Decl(nonNullReferenceMatching.ts, 11, 17))
+>thumbYProps : Symbol(thumbYProps, Decl(nonNullReferenceMatching.ts, 6, 23))
+>elementRef : Symbol(elementRef, Decl(nonNullReferenceMatching.ts, 2, 19))
+>this.props.thumbYProps!.elementRef : Symbol(elementRef, Decl(nonNullReferenceMatching.ts, 2, 19))
+>this.props.thumbYProps : Symbol(thumbYProps, Decl(nonNullReferenceMatching.ts, 6, 23))
+>this.props : Symbol(Component.props, Decl(nonNullReferenceMatching.ts, 11, 17))
+>this : Symbol(Component, Decl(nonNullReferenceMatching.ts, 9, 1))
+>props : Symbol(Component.props, Decl(nonNullReferenceMatching.ts, 11, 17))
+>thumbYProps : Symbol(thumbYProps, Decl(nonNullReferenceMatching.ts, 6, 23))
+>elementRef : Symbol(elementRef, Decl(nonNullReferenceMatching.ts, 2, 19))
+>ref : Symbol(ref, Decl(nonNullReferenceMatching.ts, 13, 31))
+
+ typeof ((this.props).thumbYProps!.elementRef)! === 'function' && this.props.thumbYProps!.elementRef(ref);
+>(this.props).thumbYProps!.elementRef : Symbol(elementRef, Decl(nonNullReferenceMatching.ts, 2, 19))
+>(this.props).thumbYProps : Symbol(thumbYProps, Decl(nonNullReferenceMatching.ts, 6, 23))
+>this.props : Symbol(Component.props, Decl(nonNullReferenceMatching.ts, 11, 17))
+>this : Symbol(Component, Decl(nonNullReferenceMatching.ts, 9, 1))
+>props : Symbol(Component.props, Decl(nonNullReferenceMatching.ts, 11, 17))
+>thumbYProps : Symbol(thumbYProps, Decl(nonNullReferenceMatching.ts, 6, 23))
+>elementRef : Symbol(elementRef, Decl(nonNullReferenceMatching.ts, 2, 19))
+>this.props.thumbYProps!.elementRef : Symbol(elementRef, Decl(nonNullReferenceMatching.ts, 2, 19))
+>this.props.thumbYProps : Symbol(thumbYProps, Decl(nonNullReferenceMatching.ts, 6, 23))
+>this.props : Symbol(Component.props, Decl(nonNullReferenceMatching.ts, 11, 17))
+>this : Symbol(Component, Decl(nonNullReferenceMatching.ts, 9, 1))
+>props : Symbol(Component.props, Decl(nonNullReferenceMatching.ts, 11, 17))
+>thumbYProps : Symbol(thumbYProps, Decl(nonNullReferenceMatching.ts, 6, 23))
+>elementRef : Symbol(elementRef, Decl(nonNullReferenceMatching.ts, 2, 19))
+>ref : Symbol(ref, Decl(nonNullReferenceMatching.ts, 13, 31))
+
+ typeof this.props.thumbXProps.elementRef === 'function' && this.props.thumbXProps.elementRef(ref);
+>this.props.thumbXProps.elementRef : Symbol(elementRef, Decl(nonNullReferenceMatching.ts, 2, 19))
+>this.props.thumbXProps : Symbol(thumbXProps, Decl(nonNullReferenceMatching.ts, 7, 29))
+>this.props : Symbol(Component.props, Decl(nonNullReferenceMatching.ts, 11, 17))
+>this : Symbol(Component, Decl(nonNullReferenceMatching.ts, 9, 1))
+>props : Symbol(Component.props, Decl(nonNullReferenceMatching.ts, 11, 17))
+>thumbXProps : Symbol(thumbXProps, Decl(nonNullReferenceMatching.ts, 7, 29))
+>elementRef : Symbol(elementRef, Decl(nonNullReferenceMatching.ts, 2, 19))
+>this.props.thumbXProps.elementRef : Symbol(elementRef, Decl(nonNullReferenceMatching.ts, 2, 19))
+>this.props.thumbXProps : Symbol(thumbXProps, Decl(nonNullReferenceMatching.ts, 7, 29))
+>this.props : Symbol(Component.props, Decl(nonNullReferenceMatching.ts, 11, 17))
+>this : Symbol(Component, Decl(nonNullReferenceMatching.ts, 9, 1))
+>props : Symbol(Component.props, Decl(nonNullReferenceMatching.ts, 11, 17))
+>thumbXProps : Symbol(thumbXProps, Decl(nonNullReferenceMatching.ts, 7, 29))
+>elementRef : Symbol(elementRef, Decl(nonNullReferenceMatching.ts, 2, 19))
+>ref : Symbol(ref, Decl(nonNullReferenceMatching.ts, 13, 31))
+
+ typeof this.props.thumbXProps.elementRef === 'function' && (this.props).thumbXProps.elementRef(ref);
+>this.props.thumbXProps.elementRef : Symbol(elementRef, Decl(nonNullReferenceMatching.ts, 2, 19))
+>this.props.thumbXProps : Symbol(thumbXProps, Decl(nonNullReferenceMatching.ts, 7, 29))
+>this.props : Symbol(Component.props, Decl(nonNullReferenceMatching.ts, 11, 17))
+>this : Symbol(Component, Decl(nonNullReferenceMatching.ts, 9, 1))
+>props : Symbol(Component.props, Decl(nonNullReferenceMatching.ts, 11, 17))
+>thumbXProps : Symbol(thumbXProps, Decl(nonNullReferenceMatching.ts, 7, 29))
+>elementRef : Symbol(elementRef, Decl(nonNullReferenceMatching.ts, 2, 19))
+>(this.props).thumbXProps.elementRef : Symbol(elementRef, Decl(nonNullReferenceMatching.ts, 2, 19))
+>(this.props).thumbXProps : Symbol(thumbXProps, Decl(nonNullReferenceMatching.ts, 7, 29))
+>this.props : Symbol(Component.props, Decl(nonNullReferenceMatching.ts, 11, 17))
+>this : Symbol(Component, Decl(nonNullReferenceMatching.ts, 9, 1))
+>props : Symbol(Component.props, Decl(nonNullReferenceMatching.ts, 11, 17))
+>thumbXProps : Symbol(thumbXProps, Decl(nonNullReferenceMatching.ts, 7, 29))
+>elementRef : Symbol(elementRef, Decl(nonNullReferenceMatching.ts, 2, 19))
+>ref : Symbol(ref, Decl(nonNullReferenceMatching.ts, 13, 31))
+
+ typeof this.props.thumbXProps.elementRef === 'function' && (this.props.thumbXProps).elementRef(ref);
+>this.props.thumbXProps.elementRef : Symbol(elementRef, Decl(nonNullReferenceMatching.ts, 2, 19))
+>this.props.thumbXProps : Symbol(thumbXProps, Decl(nonNullReferenceMatching.ts, 7, 29))
+>this.props : Symbol(Component.props, Decl(nonNullReferenceMatching.ts, 11, 17))
+>this : Symbol(Component, Decl(nonNullReferenceMatching.ts, 9, 1))
+>props : Symbol(Component.props, Decl(nonNullReferenceMatching.ts, 11, 17))
+>thumbXProps : Symbol(thumbXProps, Decl(nonNullReferenceMatching.ts, 7, 29))
+>elementRef : Symbol(elementRef, Decl(nonNullReferenceMatching.ts, 2, 19))
+>(this.props.thumbXProps).elementRef : Symbol(elementRef, Decl(nonNullReferenceMatching.ts, 2, 19))
+>this.props.thumbXProps : Symbol(thumbXProps, Decl(nonNullReferenceMatching.ts, 7, 29))
+>this.props : Symbol(Component.props, Decl(nonNullReferenceMatching.ts, 11, 17))
+>this : Symbol(Component, Decl(nonNullReferenceMatching.ts, 9, 1))
+>props : Symbol(Component.props, Decl(nonNullReferenceMatching.ts, 11, 17))
+>thumbXProps : Symbol(thumbXProps, Decl(nonNullReferenceMatching.ts, 7, 29))
+>elementRef : Symbol(elementRef, Decl(nonNullReferenceMatching.ts, 2, 19))
+>ref : Symbol(ref, Decl(nonNullReferenceMatching.ts, 13, 31))
+
+ typeof this.props.thumbXProps.elementRef === 'function' && ((this.props)!.thumbXProps)!.elementRef(ref);
+>this.props.thumbXProps.elementRef : Symbol(elementRef, Decl(nonNullReferenceMatching.ts, 2, 19))
+>this.props.thumbXProps : Symbol(thumbXProps, Decl(nonNullReferenceMatching.ts, 7, 29))
+>this.props : Symbol(Component.props, Decl(nonNullReferenceMatching.ts, 11, 17))
+>this : Symbol(Component, Decl(nonNullReferenceMatching.ts, 9, 1))
+>props : Symbol(Component.props, Decl(nonNullReferenceMatching.ts, 11, 17))
+>thumbXProps : Symbol(thumbXProps, Decl(nonNullReferenceMatching.ts, 7, 29))
+>elementRef : Symbol(elementRef, Decl(nonNullReferenceMatching.ts, 2, 19))
+>((this.props)!.thumbXProps)!.elementRef : Symbol(elementRef, Decl(nonNullReferenceMatching.ts, 2, 19))
+>(this.props)!.thumbXProps : Symbol(thumbXProps, Decl(nonNullReferenceMatching.ts, 7, 29))
+>this.props : Symbol(Component.props, Decl(nonNullReferenceMatching.ts, 11, 17))
+>this : Symbol(Component, Decl(nonNullReferenceMatching.ts, 9, 1))
+>props : Symbol(Component.props, Decl(nonNullReferenceMatching.ts, 11, 17))
+>thumbXProps : Symbol(thumbXProps, Decl(nonNullReferenceMatching.ts, 7, 29))
+>elementRef : Symbol(elementRef, Decl(nonNullReferenceMatching.ts, 2, 19))
+>ref : Symbol(ref, Decl(nonNullReferenceMatching.ts, 13, 31))
+
+ typeof (this.props.thumbXProps).elementRef === 'function' && ((this.props)!.thumbXProps)!.elementRef(ref);
+>(this.props.thumbXProps).elementRef : Symbol(elementRef, Decl(nonNullReferenceMatching.ts, 2, 19))
+>this.props.thumbXProps : Symbol(thumbXProps, Decl(nonNullReferenceMatching.ts, 7, 29))
+>this.props : Symbol(Component.props, Decl(nonNullReferenceMatching.ts, 11, 17))
+>this : Symbol(Component, Decl(nonNullReferenceMatching.ts, 9, 1))
+>props : Symbol(Component.props, Decl(nonNullReferenceMatching.ts, 11, 17))
+>thumbXProps : Symbol(thumbXProps, Decl(nonNullReferenceMatching.ts, 7, 29))
+>elementRef : Symbol(elementRef, Decl(nonNullReferenceMatching.ts, 2, 19))
+>((this.props)!.thumbXProps)!.elementRef : Symbol(elementRef, Decl(nonNullReferenceMatching.ts, 2, 19))
+>(this.props)!.thumbXProps : Symbol(thumbXProps, Decl(nonNullReferenceMatching.ts, 7, 29))
+>this.props : Symbol(Component.props, Decl(nonNullReferenceMatching.ts, 11, 17))
+>this : Symbol(Component, Decl(nonNullReferenceMatching.ts, 9, 1))
+>props : Symbol(Component.props, Decl(nonNullReferenceMatching.ts, 11, 17))
+>thumbXProps : Symbol(thumbXProps, Decl(nonNullReferenceMatching.ts, 7, 29))
+>elementRef : Symbol(elementRef, Decl(nonNullReferenceMatching.ts, 2, 19))
+>ref : Symbol(ref, Decl(nonNullReferenceMatching.ts, 13, 31))
+
+ typeof this.props!.thumbXProps!.elementRef === 'function' && ((this.props)!.thumbXProps)!.elementRef(ref);
+>this.props!.thumbXProps!.elementRef : Symbol(elementRef, Decl(nonNullReferenceMatching.ts, 2, 19))
+>this.props!.thumbXProps : Symbol(thumbXProps, Decl(nonNullReferenceMatching.ts, 7, 29))
+>this.props : Symbol(Component.props, Decl(nonNullReferenceMatching.ts, 11, 17))
+>this : Symbol(Component, Decl(nonNullReferenceMatching.ts, 9, 1))
+>props : Symbol(Component.props, Decl(nonNullReferenceMatching.ts, 11, 17))
+>thumbXProps : Symbol(thumbXProps, Decl(nonNullReferenceMatching.ts, 7, 29))
+>elementRef : Symbol(elementRef, Decl(nonNullReferenceMatching.ts, 2, 19))
+>((this.props)!.thumbXProps)!.elementRef : Symbol(elementRef, Decl(nonNullReferenceMatching.ts, 2, 19))
+>(this.props)!.thumbXProps : Symbol(thumbXProps, Decl(nonNullReferenceMatching.ts, 7, 29))
+>this.props : Symbol(Component.props, Decl(nonNullReferenceMatching.ts, 11, 17))
+>this : Symbol(Component, Decl(nonNullReferenceMatching.ts, 9, 1))
+>props : Symbol(Component.props, Decl(nonNullReferenceMatching.ts, 11, 17))
+>thumbXProps : Symbol(thumbXProps, Decl(nonNullReferenceMatching.ts, 7, 29))
+>elementRef : Symbol(elementRef, Decl(nonNullReferenceMatching.ts, 2, 19))
+>ref : Symbol(ref, Decl(nonNullReferenceMatching.ts, 13, 31))
+
+ };
+}
diff --git a/tests/baselines/reference/nonNullReferenceMatching.types b/tests/baselines/reference/nonNullReferenceMatching.types
new file mode 100644
index 00000000000..03ef70177c0
--- /dev/null
+++ b/tests/baselines/reference/nonNullReferenceMatching.types
@@ -0,0 +1,262 @@
+=== tests/cases/compiler/nonNullReferenceMatching.ts ===
+type ElementRef = (element: HTMLElement | null) => void;
+>ElementRef : ElementRef
+>element : HTMLElement | null
+>null : null
+
+type ThumbProps = {
+>ThumbProps : ThumbProps
+
+ elementRef?: ElementRef;
+>elementRef : ElementRef | undefined
+}
+
+type ComponentProps = {
+>ComponentProps : ComponentProps
+
+ thumbYProps?: ThumbProps;
+>thumbYProps : ThumbProps | undefined
+
+ thumbXProps: ThumbProps;
+>thumbXProps : ThumbProps
+}
+
+class Component {
+>Component : Component
+
+ props!: ComponentProps;
+>props : ComponentProps
+
+ public thumbYElementRef = (ref: HTMLElement | null) => {
+>thumbYElementRef : (ref: HTMLElement | null) => void
+>(ref: HTMLElement | null) => { typeof this.props.thumbYProps!.elementRef === 'function' && this.props.thumbYProps!.elementRef(ref); typeof (this.props.thumbYProps!.elementRef) === 'function' && this.props.thumbYProps!.elementRef(ref); typeof ((this.props).thumbYProps!.elementRef)! === 'function' && this.props.thumbYProps!.elementRef(ref); typeof this.props.thumbXProps.elementRef === 'function' && this.props.thumbXProps.elementRef(ref); typeof this.props.thumbXProps.elementRef === 'function' && (this.props).thumbXProps.elementRef(ref); typeof this.props.thumbXProps.elementRef === 'function' && (this.props.thumbXProps).elementRef(ref); typeof this.props.thumbXProps.elementRef === 'function' && ((this.props)!.thumbXProps)!.elementRef(ref); typeof (this.props.thumbXProps).elementRef === 'function' && ((this.props)!.thumbXProps)!.elementRef(ref); typeof this.props!.thumbXProps!.elementRef === 'function' && ((this.props)!.thumbXProps)!.elementRef(ref); } : (ref: HTMLElement | null) => void
+>ref : HTMLElement | null
+>null : null
+
+ typeof this.props.thumbYProps!.elementRef === 'function' && this.props.thumbYProps!.elementRef(ref);
+>typeof this.props.thumbYProps!.elementRef === 'function' && this.props.thumbYProps!.elementRef(ref) : false | void
+>typeof this.props.thumbYProps!.elementRef === 'function' : boolean
+>typeof this.props.thumbYProps!.elementRef : "string" | "number" | "bigint" | "boolean" | "symbol" | "undefined" | "object" | "function"
+>this.props.thumbYProps!.elementRef : ElementRef | undefined
+>this.props.thumbYProps! : ThumbProps
+>this.props.thumbYProps : ThumbProps | undefined
+>this.props : ComponentProps
+>this : this
+>props : ComponentProps
+>thumbYProps : ThumbProps | undefined
+>elementRef : ElementRef | undefined
+>'function' : "function"
+>this.props.thumbYProps!.elementRef(ref) : void
+>this.props.thumbYProps!.elementRef : ElementRef
+>this.props.thumbYProps! : ThumbProps
+>this.props.thumbYProps : ThumbProps | undefined
+>this.props : ComponentProps
+>this : this
+>props : ComponentProps
+>thumbYProps : ThumbProps | undefined
+>elementRef : ElementRef
+>ref : HTMLElement | null
+
+ typeof (this.props.thumbYProps!.elementRef) === 'function' && this.props.thumbYProps!.elementRef(ref);
+>typeof (this.props.thumbYProps!.elementRef) === 'function' && this.props.thumbYProps!.elementRef(ref) : false | void
+>typeof (this.props.thumbYProps!.elementRef) === 'function' : boolean
+>typeof (this.props.thumbYProps!.elementRef) : "string" | "number" | "bigint" | "boolean" | "symbol" | "undefined" | "object" | "function"
+>(this.props.thumbYProps!.elementRef) : ElementRef | undefined
+>this.props.thumbYProps!.elementRef : ElementRef | undefined
+>this.props.thumbYProps! : ThumbProps
+>this.props.thumbYProps : ThumbProps | undefined
+>this.props : ComponentProps
+>this : this
+>props : ComponentProps
+>thumbYProps : ThumbProps | undefined
+>elementRef : ElementRef | undefined
+>'function' : "function"
+>this.props.thumbYProps!.elementRef(ref) : void
+>this.props.thumbYProps!.elementRef : ElementRef
+>this.props.thumbYProps! : ThumbProps
+>this.props.thumbYProps : ThumbProps | undefined
+>this.props : ComponentProps
+>this : this
+>props : ComponentProps
+>thumbYProps : ThumbProps | undefined
+>elementRef : ElementRef
+>ref : HTMLElement | null
+
+ typeof ((this.props).thumbYProps!.elementRef)! === 'function' && this.props.thumbYProps!.elementRef(ref);
+>typeof ((this.props).thumbYProps!.elementRef)! === 'function' && this.props.thumbYProps!.elementRef(ref) : false | void
+>typeof ((this.props).thumbYProps!.elementRef)! === 'function' : boolean
+>typeof ((this.props).thumbYProps!.elementRef)! : "string" | "number" | "bigint" | "boolean" | "symbol" | "undefined" | "object" | "function"
+>((this.props).thumbYProps!.elementRef)! : ElementRef
+>((this.props).thumbYProps!.elementRef) : ElementRef | undefined
+>(this.props).thumbYProps!.elementRef : ElementRef | undefined
+>(this.props).thumbYProps! : ThumbProps
+>(this.props).thumbYProps : ThumbProps | undefined
+>(this.props) : ComponentProps
+>this.props : ComponentProps
+>this : this
+>props : ComponentProps
+>thumbYProps : ThumbProps | undefined
+>elementRef : ElementRef | undefined
+>'function' : "function"
+>this.props.thumbYProps!.elementRef(ref) : void
+>this.props.thumbYProps!.elementRef : ElementRef
+>this.props.thumbYProps! : ThumbProps
+>this.props.thumbYProps : ThumbProps | undefined
+>this.props : ComponentProps
+>this : this
+>props : ComponentProps
+>thumbYProps : ThumbProps | undefined
+>elementRef : ElementRef
+>ref : HTMLElement | null
+
+ typeof this.props.thumbXProps.elementRef === 'function' && this.props.thumbXProps.elementRef(ref);
+>typeof this.props.thumbXProps.elementRef === 'function' && this.props.thumbXProps.elementRef(ref) : false | void
+>typeof this.props.thumbXProps.elementRef === 'function' : boolean
+>typeof this.props.thumbXProps.elementRef : "string" | "number" | "bigint" | "boolean" | "symbol" | "undefined" | "object" | "function"
+>this.props.thumbXProps.elementRef : ElementRef | undefined
+>this.props.thumbXProps : ThumbProps
+>this.props : ComponentProps
+>this : this
+>props : ComponentProps
+>thumbXProps : ThumbProps
+>elementRef : ElementRef | undefined
+>'function' : "function"
+>this.props.thumbXProps.elementRef(ref) : void
+>this.props.thumbXProps.elementRef : ElementRef
+>this.props.thumbXProps : ThumbProps
+>this.props : ComponentProps
+>this : this
+>props : ComponentProps
+>thumbXProps : ThumbProps
+>elementRef : ElementRef
+>ref : HTMLElement | null
+
+ typeof this.props.thumbXProps.elementRef === 'function' && (this.props).thumbXProps.elementRef(ref);
+>typeof this.props.thumbXProps.elementRef === 'function' && (this.props).thumbXProps.elementRef(ref) : false | void
+>typeof this.props.thumbXProps.elementRef === 'function' : boolean
+>typeof this.props.thumbXProps.elementRef : "string" | "number" | "bigint" | "boolean" | "symbol" | "undefined" | "object" | "function"
+>this.props.thumbXProps.elementRef : ElementRef | undefined
+>this.props.thumbXProps : ThumbProps
+>this.props : ComponentProps
+>this : this
+>props : ComponentProps
+>thumbXProps : ThumbProps
+>elementRef : ElementRef | undefined
+>'function' : "function"
+>(this.props).thumbXProps.elementRef(ref) : void
+>(this.props).thumbXProps.elementRef : ElementRef
+>(this.props).thumbXProps : ThumbProps
+>(this.props) : ComponentProps
+>this.props : ComponentProps
+>this : this
+>props : ComponentProps
+>thumbXProps : ThumbProps
+>elementRef : ElementRef
+>ref : HTMLElement | null
+
+ typeof this.props.thumbXProps.elementRef === 'function' && (this.props.thumbXProps).elementRef(ref);
+>typeof this.props.thumbXProps.elementRef === 'function' && (this.props.thumbXProps).elementRef(ref) : false | void
+>typeof this.props.thumbXProps.elementRef === 'function' : boolean
+>typeof this.props.thumbXProps.elementRef : "string" | "number" | "bigint" | "boolean" | "symbol" | "undefined" | "object" | "function"
+>this.props.thumbXProps.elementRef : ElementRef | undefined
+>this.props.thumbXProps : ThumbProps
+>this.props : ComponentProps
+>this : this
+>props : ComponentProps
+>thumbXProps : ThumbProps
+>elementRef : ElementRef | undefined
+>'function' : "function"
+>(this.props.thumbXProps).elementRef(ref) : void
+>(this.props.thumbXProps).elementRef : ElementRef
+>(this.props.thumbXProps) : ThumbProps
+>this.props.thumbXProps : ThumbProps
+>this.props : ComponentProps
+>this : this
+>props : ComponentProps
+>thumbXProps : ThumbProps
+>elementRef : ElementRef
+>ref : HTMLElement | null
+
+ typeof this.props.thumbXProps.elementRef === 'function' && ((this.props)!.thumbXProps)!.elementRef(ref);
+>typeof this.props.thumbXProps.elementRef === 'function' && ((this.props)!.thumbXProps)!.elementRef(ref) : false | void
+>typeof this.props.thumbXProps.elementRef === 'function' : boolean
+>typeof this.props.thumbXProps.elementRef : "string" | "number" | "bigint" | "boolean" | "symbol" | "undefined" | "object" | "function"
+>this.props.thumbXProps.elementRef : ElementRef | undefined
+>this.props.thumbXProps : ThumbProps
+>this.props : ComponentProps
+>this : this
+>props : ComponentProps
+>thumbXProps : ThumbProps
+>elementRef : ElementRef | undefined
+>'function' : "function"
+>((this.props)!.thumbXProps)!.elementRef(ref) : void
+>((this.props)!.thumbXProps)!.elementRef : ElementRef
+>((this.props)!.thumbXProps)! : ThumbProps
+>((this.props)!.thumbXProps) : ThumbProps
+>(this.props)!.thumbXProps : ThumbProps
+>(this.props)! : ComponentProps
+>(this.props) : ComponentProps
+>this.props : ComponentProps
+>this : this
+>props : ComponentProps
+>thumbXProps : ThumbProps
+>elementRef : ElementRef
+>ref : HTMLElement | null
+
+ typeof (this.props.thumbXProps).elementRef === 'function' && ((this.props)!.thumbXProps)!.elementRef(ref);
+>typeof (this.props.thumbXProps).elementRef === 'function' && ((this.props)!.thumbXProps)!.elementRef(ref) : false | void
+>typeof (this.props.thumbXProps).elementRef === 'function' : boolean
+>typeof (this.props.thumbXProps).elementRef : "string" | "number" | "bigint" | "boolean" | "symbol" | "undefined" | "object" | "function"
+>(this.props.thumbXProps).elementRef : ElementRef | undefined
+>(this.props.thumbXProps) : ThumbProps
+>this.props.thumbXProps : ThumbProps
+>this.props : ComponentProps
+>this : this
+>props : ComponentProps
+>thumbXProps : ThumbProps
+>elementRef : ElementRef | undefined
+>'function' : "function"
+>((this.props)!.thumbXProps)!.elementRef(ref) : void
+>((this.props)!.thumbXProps)!.elementRef : ElementRef
+>((this.props)!.thumbXProps)! : ThumbProps
+>((this.props)!.thumbXProps) : ThumbProps
+>(this.props)!.thumbXProps : ThumbProps
+>(this.props)! : ComponentProps
+>(this.props) : ComponentProps
+>this.props : ComponentProps
+>this : this
+>props : ComponentProps
+>thumbXProps : ThumbProps
+>elementRef : ElementRef
+>ref : HTMLElement | null
+
+ typeof this.props!.thumbXProps!.elementRef === 'function' && ((this.props)!.thumbXProps)!.elementRef(ref);
+>typeof this.props!.thumbXProps!.elementRef === 'function' && ((this.props)!.thumbXProps)!.elementRef(ref) : false | void
+>typeof this.props!.thumbXProps!.elementRef === 'function' : boolean
+>typeof this.props!.thumbXProps!.elementRef : "string" | "number" | "bigint" | "boolean" | "symbol" | "undefined" | "object" | "function"
+>this.props!.thumbXProps!.elementRef : ElementRef | undefined
+>this.props!.thumbXProps! : ThumbProps
+>this.props!.thumbXProps : ThumbProps
+>this.props! : ComponentProps
+>this.props : ComponentProps
+>this : this
+>props : ComponentProps
+>thumbXProps : ThumbProps
+>elementRef : ElementRef | undefined
+>'function' : "function"
+>((this.props)!.thumbXProps)!.elementRef(ref) : void
+>((this.props)!.thumbXProps)!.elementRef : ElementRef
+>((this.props)!.thumbXProps)! : ThumbProps
+>((this.props)!.thumbXProps) : ThumbProps
+>(this.props)!.thumbXProps : ThumbProps
+>(this.props)! : ComponentProps
+>(this.props) : ComponentProps
+>this.props : ComponentProps
+>this : this
+>props : ComponentProps
+>thumbXProps : ThumbProps
+>elementRef : ElementRef
+>ref : HTMLElement | null
+
+ };
+}
diff --git a/tests/baselines/reference/umdNamespaceMergedWithGlobalAugmentationIsNotCircular.js b/tests/baselines/reference/umdNamespaceMergedWithGlobalAugmentationIsNotCircular.js
new file mode 100644
index 00000000000..377082fa5d5
--- /dev/null
+++ b/tests/baselines/reference/umdNamespaceMergedWithGlobalAugmentationIsNotCircular.js
@@ -0,0 +1,31 @@
+//// [tests/cases/compiler/umdNamespaceMergedWithGlobalAugmentationIsNotCircular.ts] ////
+
+//// [global.d.ts]
+declare global {
+ const React: typeof import("./module");
+}
+
+export { };
+
+//// [module.d.ts]
+export = React;
+export as namespace React;
+
+declare namespace React {
+ function createRef(): any;
+}
+
+//// [some_module.ts]
+export { };
+React.createRef;
+
+//// [emits.ts]
+console.log("hello");
+React.createRef;
+
+//// [some_module.js]
+React.createRef;
+//// [emits.js]
+"use strict";
+console.log("hello");
+React.createRef;
diff --git a/tests/baselines/reference/umdNamespaceMergedWithGlobalAugmentationIsNotCircular.symbols b/tests/baselines/reference/umdNamespaceMergedWithGlobalAugmentationIsNotCircular.symbols
new file mode 100644
index 00000000000..24a9885b294
--- /dev/null
+++ b/tests/baselines/reference/umdNamespaceMergedWithGlobalAugmentationIsNotCircular.symbols
@@ -0,0 +1,42 @@
+=== tests/cases/compiler/global.d.ts ===
+declare global {
+>global : Symbol(global, Decl(global.d.ts, 0, 0))
+
+ const React: typeof import("./module");
+>React : Symbol(React, Decl(module.d.ts, 1, 26), Decl(global.d.ts, 1, 9))
+}
+
+export { };
+
+=== tests/cases/compiler/module.d.ts ===
+export = React;
+>React : Symbol(React, Decl(module.d.ts, 1, 26))
+
+export as namespace React;
+>React : Symbol(React, Decl(module.d.ts, 0, 15))
+
+declare namespace React {
+>React : Symbol(React, Decl(module.d.ts, 1, 26), Decl(global.d.ts, 1, 9))
+
+ function createRef(): any;
+>createRef : Symbol(createRef, Decl(module.d.ts, 3, 25))
+}
+
+=== tests/cases/compiler/some_module.ts ===
+export { };
+React.createRef;
+>React.createRef : Symbol(React.createRef, Decl(module.d.ts, 3, 25))
+>React : Symbol(React, Decl(module.d.ts, 1, 26), Decl(global.d.ts, 1, 9))
+>createRef : Symbol(React.createRef, Decl(module.d.ts, 3, 25))
+
+=== tests/cases/compiler/emits.ts ===
+console.log("hello");
+>console.log : Symbol(Console.log, Decl(lib.dom.d.ts, --, --))
+>console : Symbol(console, Decl(lib.dom.d.ts, --, --))
+>log : Symbol(Console.log, Decl(lib.dom.d.ts, --, --))
+
+React.createRef;
+>React.createRef : Symbol(React.createRef, Decl(module.d.ts, 3, 25))
+>React : Symbol(React, Decl(module.d.ts, 1, 26), Decl(global.d.ts, 1, 9))
+>createRef : Symbol(React.createRef, Decl(module.d.ts, 3, 25))
+
diff --git a/tests/baselines/reference/umdNamespaceMergedWithGlobalAugmentationIsNotCircular.types b/tests/baselines/reference/umdNamespaceMergedWithGlobalAugmentationIsNotCircular.types
new file mode 100644
index 00000000000..2c0ce91aec8
--- /dev/null
+++ b/tests/baselines/reference/umdNamespaceMergedWithGlobalAugmentationIsNotCircular.types
@@ -0,0 +1,44 @@
+=== tests/cases/compiler/global.d.ts ===
+declare global {
+>global : typeof global
+
+ const React: typeof import("./module");
+>React : typeof React
+}
+
+export { };
+
+=== tests/cases/compiler/module.d.ts ===
+export = React;
+>React : typeof React
+
+export as namespace React;
+>React : typeof React
+
+declare namespace React {
+>React : typeof React
+
+ function createRef(): any;
+>createRef : () => any
+}
+
+=== tests/cases/compiler/some_module.ts ===
+export { };
+React.createRef;
+>React.createRef : () => any
+>React : typeof React
+>createRef : () => any
+
+=== tests/cases/compiler/emits.ts ===
+console.log("hello");
+>console.log("hello") : void
+>console.log : (message?: any, ...optionalParams: any[]) => void
+>console : Console
+>log : (message?: any, ...optionalParams: any[]) => void
+>"hello" : "hello"
+
+React.createRef;
+>React.createRef : () => any
+>React : typeof React
+>createRef : () => any
+
diff --git a/tests/baselines/reference/user/puppeteer.log b/tests/baselines/reference/user/puppeteer.log
index 9d6c2b26482..30875ee5560 100644
--- a/tests/baselines/reference/user/puppeteer.log
+++ b/tests/baselines/reference/user/puppeteer.log
@@ -62,9 +62,9 @@ lib/Page.js(936,3): error TS2322: Type '{ width: number; height: number; }' is n
lib/Page.js(937,3): error TS2322: Type '{ width: number; height: number; }' is not assignable to type 'string'.
lib/Page.js(938,3): error TS2322: Type '{ width: number; height: number; }' is not assignable to type 'string'.
lib/TaskQueue.js(7,14): error TS7014: Function type, which lacks return-type annotation, implicitly has an 'any' return type.
-lib/externs.d.ts(3,29): error TS2497: Module '"/puppeteer/puppeteer/lib/Target"' resolves to a non-module entity and cannot be imported using this construct.
-lib/externs.d.ts(5,32): error TS2497: Module '"/puppeteer/puppeteer/lib/TaskQueue"' resolves to a non-module entity and cannot be imported using this construct.
-lib/externs.d.ts(9,37): error TS2497: Module '"/puppeteer/puppeteer/lib/ElementHandle"' resolves to a non-module entity and cannot be imported using this construct.
+lib/externs.d.ts(3,29): error TS2497: This module can only be referenced with ECMAScript imports/exports by turning on the 'allowSyntheticDefaultImports' flag and referencing its default export.
+lib/externs.d.ts(5,32): error TS2497: This module can only be referenced with ECMAScript imports/exports by turning on the 'allowSyntheticDefaultImports' flag and referencing its default export.
+lib/externs.d.ts(9,37): error TS2497: This module can only be referenced with ECMAScript imports/exports by turning on the 'allowSyntheticDefaultImports' flag and referencing its default export.
lib/externs.d.ts(16,26): error TS2503: Cannot find namespace 'Protocol'.
lib/externs.d.ts(16,69): error TS2503: Cannot find namespace 'Protocol'.
lib/externs.d.ts(17,28): error TS2503: Cannot find namespace 'Protocol'.
diff --git a/tests/cases/compiler/checkSuperCallBeforeThisAccessing9.ts b/tests/cases/compiler/checkSuperCallBeforeThisAccessing9.ts
new file mode 100644
index 00000000000..a6b7102b2a5
--- /dev/null
+++ b/tests/cases/compiler/checkSuperCallBeforeThisAccessing9.ts
@@ -0,0 +1,21 @@
+// @allowJs: true
+// @checkJs: true
+// @noEmit: true
+
+// @filename: noSuperInJSDocExtends.js
+class Based { }
+/** @extends {Based} */
+class Derived {
+ constructor() {
+ this;
+ this.x = 10;
+ var that = this;
+ }
+}
+
+/** @extends {Based} */
+class Derived2 {
+ constructor() {
+ super();
+ }
+}
\ No newline at end of file
diff --git a/tests/cases/compiler/decoratorWithNegativeLiteralTypeNoCrash.ts b/tests/cases/compiler/decoratorWithNegativeLiteralTypeNoCrash.ts
new file mode 100644
index 00000000000..720b68a7c16
--- /dev/null
+++ b/tests/cases/compiler/decoratorWithNegativeLiteralTypeNoCrash.ts
@@ -0,0 +1,8 @@
+// @target: es5
+// @experimentalDecorators: true
+// @emitDecoratorMetadata: true
+class A {
+ @decorator
+ public field1: -1 = -1;
+}
+function decorator(target: any, field: any) {}
\ No newline at end of file
diff --git a/tests/cases/compiler/es6ImportEqualsExportModuleCommonJsError.ts b/tests/cases/compiler/es6ImportEqualsExportModuleCommonJsError.ts
new file mode 100644
index 00000000000..577e606c249
--- /dev/null
+++ b/tests/cases/compiler/es6ImportEqualsExportModuleCommonJsError.ts
@@ -0,0 +1,11 @@
+// @module: commonjs
+
+// @filename: a.ts
+class a { }
+export = a;
+
+// @filename: main.ts
+import * as a from "./a";
+a;
+
+
diff --git a/tests/cases/compiler/es6ImportEqualsExportModuleEs2015Error.ts b/tests/cases/compiler/es6ImportEqualsExportModuleEs2015Error.ts
new file mode 100644
index 00000000000..a5505b0e90e
--- /dev/null
+++ b/tests/cases/compiler/es6ImportEqualsExportModuleEs2015Error.ts
@@ -0,0 +1,11 @@
+// @module: es2015
+
+// @filename: a.ts
+class a { }
+export = a;
+
+// @filename: main.ts
+import * as a from "./a";
+a;
+
+
diff --git a/tests/cases/compiler/nonNullReferenceMatching.ts b/tests/cases/compiler/nonNullReferenceMatching.ts
new file mode 100644
index 00000000000..1295c3ce9a7
--- /dev/null
+++ b/tests/cases/compiler/nonNullReferenceMatching.ts
@@ -0,0 +1,34 @@
+// @strict: true
+type ElementRef = (element: HTMLElement | null) => void;
+
+type ThumbProps = {
+ elementRef?: ElementRef;
+}
+
+type ComponentProps = {
+ thumbYProps?: ThumbProps;
+ thumbXProps: ThumbProps;
+}
+
+class Component {
+ props!: ComponentProps;
+ public thumbYElementRef = (ref: HTMLElement | null) => {
+ typeof this.props.thumbYProps!.elementRef === 'function' && this.props.thumbYProps!.elementRef(ref);
+
+ typeof (this.props.thumbYProps!.elementRef) === 'function' && this.props.thumbYProps!.elementRef(ref);
+
+ typeof ((this.props).thumbYProps!.elementRef)! === 'function' && this.props.thumbYProps!.elementRef(ref);
+
+ typeof this.props.thumbXProps.elementRef === 'function' && this.props.thumbXProps.elementRef(ref);
+
+ typeof this.props.thumbXProps.elementRef === 'function' && (this.props).thumbXProps.elementRef(ref);
+
+ typeof this.props.thumbXProps.elementRef === 'function' && (this.props.thumbXProps).elementRef(ref);
+
+ typeof this.props.thumbXProps.elementRef === 'function' && ((this.props)!.thumbXProps)!.elementRef(ref);
+
+ typeof (this.props.thumbXProps).elementRef === 'function' && ((this.props)!.thumbXProps)!.elementRef(ref);
+
+ typeof this.props!.thumbXProps!.elementRef === 'function' && ((this.props)!.thumbXProps)!.elementRef(ref);
+ };
+}
\ No newline at end of file
diff --git a/tests/cases/compiler/umdNamespaceMergedWithGlobalAugmentationIsNotCircular.ts b/tests/cases/compiler/umdNamespaceMergedWithGlobalAugmentationIsNotCircular.ts
new file mode 100644
index 00000000000..81346aca1b4
--- /dev/null
+++ b/tests/cases/compiler/umdNamespaceMergedWithGlobalAugmentationIsNotCircular.ts
@@ -0,0 +1,26 @@
+// @strict: true
+// @module: esnext
+// @moduleResolution: node
+// @target: es2018
+// @filename: global.d.ts
+declare global {
+ const React: typeof import("./module");
+}
+
+export { };
+
+// @filename: module.d.ts
+export = React;
+export as namespace React;
+
+declare namespace React {
+ function createRef(): any;
+}
+
+// @filename: some_module.ts
+export { };
+React.createRef;
+
+// @filename: emits.ts
+console.log("hello");
+React.createRef;
\ No newline at end of file
diff --git a/tests/cases/conformance/declarationEmit/libReferenceNoLib.ts b/tests/cases/conformance/declarationEmit/libReferenceNoLib.ts
new file mode 100644
index 00000000000..d29da9a5bc5
--- /dev/null
+++ b/tests/cases/conformance/declarationEmit/libReferenceNoLib.ts
@@ -0,0 +1,21 @@
+// @target: esnext
+// @module: commonjs
+// @noLib: true
+// @declaration: true
+// Test that passing noLib disables resolution.
+
+// @filename: fakelib.ts
+interface Object { }
+interface Array { }
+interface String { }
+interface Boolean { }
+interface Number { }
+interface Function { }
+interface RegExp { }
+interface IArguments { }
+
+
+// @filename: file1.ts
+///
+export declare interface HTMLElement { field: string; }
+export const elem: HTMLElement = { field: 'a' };
diff --git a/tests/cases/conformance/declarationEmit/libReferenceNoLibBundle.ts b/tests/cases/conformance/declarationEmit/libReferenceNoLibBundle.ts
new file mode 100644
index 00000000000..18f0b5387c5
--- /dev/null
+++ b/tests/cases/conformance/declarationEmit/libReferenceNoLibBundle.ts
@@ -0,0 +1,23 @@
+// @target: esnext
+// @module: amd
+// @noLib: true
+// @declaration: true
+// @outFile: bundle.js
+
+// Test that passing noLib disables resolution.
+
+// @filename: fakelib.ts
+interface Object { }
+interface Array { }
+interface String { }
+interface Boolean { }
+interface Number { }
+interface Function { }
+interface RegExp { }
+interface IArguments { }
+
+
+// @filename: file1.ts
+///
+export declare interface HTMLElement { field: string; }
+export const elem: HTMLElement = { field: 'a' };
diff --git a/tests/cases/conformance/types/conditional/conditionalTypes1.ts b/tests/cases/conformance/types/conditional/conditionalTypes1.ts
index f5c67f678eb..2e8690a228b 100644
--- a/tests/cases/conformance/types/conditional/conditionalTypes1.ts
+++ b/tests/cases/conformance/types/conditional/conditionalTypes1.ts
@@ -353,3 +353,11 @@ declare function assign(o: T, a: RecursivePartial): void;
var a = {o: 1, b: 2, c: [{a: 1, c: '213'}]}
assign(a, {o: 2, c: {0: {a: 2, c: '213123'}}})
+
+// Repros from #23843
+
+type Weird1 = ((a: U) => never) extends
+ ((a: U) => never) ? never : never;
+
+type Weird2 = ((a: U) => U) extends
+ ((a: U) => infer T) ? T : never;
diff --git a/tests/cases/fourslash/codefixEnableExperimentalDecorators_blankCompilerOptions.ts b/tests/cases/fourslash/codefixEnableExperimentalDecorators_blankCompilerOptions.ts
new file mode 100644
index 00000000000..0e19b42d921
--- /dev/null
+++ b/tests/cases/fourslash/codefixEnableExperimentalDecorators_blankCompilerOptions.ts
@@ -0,0 +1,26 @@
+///
+
+// @Filename: /dir/a.ts
+////declare const decorator: any;
+////class A {
+//// @decorator method() {};
+////};
+
+// @Filename: /dir/tsconfig.json
+////{
+//// "compilerOptions": {
+//// }
+////}
+
+goTo.file("/dir/a.ts");
+verify.codeFix({
+ description: "Enable the 'experimentalDecorators' option in your configuration file",
+ newFileContent: {
+ "/dir/tsconfig.json":
+`{
+ "compilerOptions": {
+ "experimentalDecorators": true,
+ }
+}`,
+ },
+});
diff --git a/tests/cases/fourslash/codefixEnableExperimentalDecorators_disabledInCompilerOptions.ts b/tests/cases/fourslash/codefixEnableExperimentalDecorators_disabledInCompilerOptions.ts
new file mode 100644
index 00000000000..056e7e15a48
--- /dev/null
+++ b/tests/cases/fourslash/codefixEnableExperimentalDecorators_disabledInCompilerOptions.ts
@@ -0,0 +1,27 @@
+///
+
+// @Filename: /dir/a.ts
+////declare const decorator: any;
+////class A {
+//// @decorator method() {};
+////};
+
+// @Filename: /dir/tsconfig.json
+////{
+//// "compilerOptions": {
+//// "experimentalDecorators": false,
+//// }
+////}
+
+goTo.file("/dir/a.ts");
+verify.codeFix({
+ description: "Enable the 'experimentalDecorators' option in your configuration file",
+ newFileContent: {
+ "/dir/tsconfig.json":
+`{
+ "compilerOptions": {
+ "experimentalDecorators": true,
+ }
+}`,
+ },
+});
diff --git a/tests/cases/fourslash/codefixEnableExperimentalDecorators_missingCompilerOptions.ts b/tests/cases/fourslash/codefixEnableExperimentalDecorators_missingCompilerOptions.ts
new file mode 100644
index 00000000000..6d7006f3ce1
--- /dev/null
+++ b/tests/cases/fourslash/codefixEnableExperimentalDecorators_missingCompilerOptions.ts
@@ -0,0 +1,22 @@
+///
+
+// @Filename: /dir/a.ts
+////declare const decorator: any;
+////class A {
+//// @decorator method() {};
+////};
+
+// @Filename: /dir/tsconfig.json
+////{
+////}
+
+goTo.file("/dir/a.ts");
+verify.codeFix({
+ description: "Enable the 'experimentalDecorators' option in your configuration file",
+ newFileContent: {
+ "/dir/tsconfig.json":
+`{
+ "compilerOptions": { "experimentalDecorators": true },
+}`,
+ },
+});
diff --git a/tests/cases/fourslash/codefixEnableExperimentalDecorators_noTsconfig.ts b/tests/cases/fourslash/codefixEnableExperimentalDecorators_noTsconfig.ts
new file mode 100644
index 00000000000..8430fd0734b
--- /dev/null
+++ b/tests/cases/fourslash/codefixEnableExperimentalDecorators_noTsconfig.ts
@@ -0,0 +1,10 @@
+///
+
+// @Filename: /dir/a.ts
+////declare const decorator: any;
+////class A {
+//// @decorator method() {};
+////};
+
+goTo.file("/dir/a.ts");
+verify.not.codeFixAvailable();
diff --git a/tests/cases/fourslash/completionListBuilderLocations_Modules.ts b/tests/cases/fourslash/completionListBuilderLocations_Modules.ts
index a98d65e255d..29530ccbdef 100644
--- a/tests/cases/fourslash/completionListBuilderLocations_Modules.ts
+++ b/tests/cases/fourslash/completionListBuilderLocations_Modules.ts
@@ -7,5 +7,5 @@
verify.completions(
{ marker: "moduleName1", exact: completion.globals, isNewIdentifierLocation: true },
- { marker: "moduleName2", exact: undefined },
+ { marker: "moduleName2", exact: [], isNewIdentifierLocation: true },
);