11679 Commits

Author SHA1 Message Date
Anders Hejlsberg 4110b80fbb Fix equality narrowing and comparable relation for intersections with {} (#50735)
* Fox equality narrowing and comparable relation for intersections with {}

* Accept new baselines

* Add tests

* Accept new baselines
2022-09-14 09:19:36 -07:00
Oleksandr T 08b91f6b82 fix(50717): tsc crashes when it sees a JSDoc tag inside an @override annotation (#50724) 2022-09-13 12:51:17 -07:00
Anders Hejlsberg 60963d7216 Discriminant of type never should never be matched (#50755)
* Discriminant of type 'never' should never be matched

* Add tests
2022-09-13 10:29:50 -07:00
Jake Bailey f5f2923c7d Revert removal of nonInferrableAnyType (#50691) 2022-09-12 15:10:29 -07:00
Ron Buckton a4cabe725b Support for auto-accessor fields from the Stage 3 Decorators proposal (#49705)
* Support for auto-accessor fields

* Add tests, ensure accessors are initialized in ctor

* classFields cleanup and PR feedback
2022-09-12 15:12:11 -04:00
Jake Bailey eb40134373 Don't leave space for property access on non-integer literals (#50703) 2022-09-09 14:36:39 -07:00
Anders Hejlsberg a70bb9d3ff Preserve special intersections in mapped types (#50704)
* Preserve special intersections in mapped types

* Add regression test
2022-09-09 12:09:50 -07:00
Jake Bailey 1a1c271675 Don't remove space before dot if in property access on numeric literal (#50695)
* Add failing test

* Don't remove space before dot if in property access on numeric literal
2022-09-08 19:08:51 -07:00
Andrew Branch bb6f36f7c8 Forward intersection state flag to conditional type target check (#50620) 2022-09-07 10:07:24 -07:00
Will Nayes fd3a84c3f0 Report every instance of TS1208 (#50101)
* Report every instance of TS1208

* Test case for multiple cases of TS1208

* Add test case for isolatedModules with moduleDetection forced
2022-09-02 13:44:47 -07:00
Andrew Branch 856c7c5fdd Allow {} to narrow in same special cases as unknown (#50601) 2022-09-02 09:47:27 -07:00
Anders Hejlsberg 854d448e5c in operator shouldn't narrow {} originating in unknown (#50610)
* 'in' operator shouldn't narrow {} originating in unknown

* Add regression test
2022-09-02 09:30:17 -07:00
Oleksandr T bcf994996e fix(50079): show deprecated on JSX attributes (#50084) 2022-09-01 16:59:29 -07:00
Andrew Branch 5df09a514c Use bidirectional comparability in narrowing (#50592)
* Use bidirectional comparability (aka comparability) in narrowing

* Rename test, check other CFA branch, test without strictNullChecks
2022-09-01 14:26:48 -07:00
Anders Hejlsberg 6db2c882f3 {} & null and {} & undefined should always be never (#50553)
* {} & null and {} & undefined should be never in non-strictNullChecks mode

* Add tests

* Address code review feedback

* Accept new baselines
2022-09-01 12:37:13 -07:00
Mateusz Burzyński 238c341701 Defer distributing index over generic object types (#50540)
* Defer distributing index over generic object types

* Only check if the index type should be deferred for intersection types

* Add an additional test case
2022-09-01 07:28:13 -07:00
Oleksandr T a9797d218d fix(50340): typeof ... === "undefined" check on discriminated union of undefined and object type doesn't narrow correctly (#50344)
* fix(50340): narrow type by discriminant in typeof

* add additional test cases
2022-08-31 15:00:50 -07:00
Wesley Wigham 488d0eebd0 Retain name and propertyName in declaration emit copies of binding patterns if property name is a keyword (#50537)
* Retain name and propertyName in declaration emit copies of binding patterns if property name is a keyword

* Accept baselines

* Remove out of date file
2022-08-30 09:03:02 -07:00
Anders Hejlsberg 6d170b490d Handle intersections in isGenericTypeWithoutNullableConstraint (#50497)
* Handle intersections in isGenericTypeWithoutNullableConstraint

* Add regression test
2022-08-29 09:24:13 -07:00
Joost Koehoorn 71b2ba6111 Reuse computed type of condition expressions (#49881) 2022-08-27 01:40:13 -07:00
Oleksandr T 4579245f36 fix(50427): allow convert function expressions (#50430) 2022-08-26 15:43:19 -07:00
Oleksandr T bb3a7aec11 fix(50415): Language server debug failure - Did not expect GetAccessor to have an Identifier in its trivia (#50470)
* fix(50415): clone props for get/set accessors

* add additional tests

* create helpers to create name, body, modifiers, typeName

* cleanup
2022-08-26 14:33:23 -07:00
Oleksandr T 164dddc48e feat(7481): Operator to ensure an expression is contextually typed by, and satisfies, some type (#46827)
* feat(7481): add explicit type compatibility check with 'satisfies' expression

* Add failing test for lack of intersectioned contextual type

* Implement the behavior

* Add test corresponding to the 'if'

* Add test based on defined scenarios

* remove isExpression in favor of using type casting

* move tests from compiler to conformance folder

* update baseline

* add missing contextFlags argument

* use asserted type

* accept baseline

Co-authored-by: Ryan Cavanaugh <ryanca@microsoft.com>
2022-08-26 10:05:52 -07:00
Andrew Branch 38076df346 Fix auto import crash due to difference in paths handling (#50419) 2022-08-25 13:02:48 -07:00
Oleksandr T 12eb519b3f fix(50435): Duplicate seeming Code Actions for convert const to let (#50442)
* fix(50435): omit fix all in constToLet QF

* add FixAll action
2022-08-25 13:01:46 -07:00
Danay a08b045d2b Jsdoc property description (#50269)
* jsdocPropertyDescription

* jsdocPropertyDescription

* jsdocPropertyDescription

* Fixes #47933

* added additional test

* added additional example

* fixed bug

* changed function to only grab the literal type

* added additional condition for literals and symbols

* added additional test cases

* Update src/services/symbolDisplay.ts

Co-authored-by: Andrew Branch <andrewbranch@users.noreply.github.com>

* addressed PR review

* addressed new PR review

Co-authored-by: Danay Fernandez Alfonso <t-danayf@microsoft.com>
Co-authored-by: Andrew Branch <andrewbranch@users.noreply.github.com>
2022-08-25 11:57:32 -07:00
Oleksandr T 8d7ad8c3ae fix(50375): Errors for missing enum-named properties should attempt to preserve names (#50382)
* fix(50375): preserve enum-named properties

* add AllowComputedPropertyEnums option

* use bit shifting

* rename AllowComputedPropertyEnum -> WriteComputedProps

* mark WriteComputedProps as internal

* mark symbolToNode as internal
2022-08-24 11:54:44 -07:00
Daniel Rosenwasser fb717df6bf Discard union types before considering weak type checks on unit-like types (#50423)
* Only check isUnitType when dealing with non-unions.

* Add test case.

* Accepted baselines.
2022-08-24 11:39:00 -07:00
Oleksandr T 44ce3cff70 fix(50224): Intellisense for strings within a type's Union doesn't work properly for JSX (#50231)
* fix(50224): show string literal completions in JsxAttributeInitializer

* add feedback changes
2022-08-23 14:59:10 -07:00
Oleksandr T 5969ae9ef7 fix(50075): do not strip undefined from the function class properties (#50169) 2022-08-19 09:34:42 -07:00
Wesley Wigham 05d7d6bb12 Unify default import resolution across specifier target codepaths (#49814)
* Unify default import resolution across specifier target codepaths

* Use differing type aliases, per request
2022-08-19 02:25:41 -07:00
Daniel Rosenwasser 7bafbeae90 Add fourslash function for validating syntactic classification (#50362) 2022-08-18 11:28:08 -07:00
DetachHead 3b80ddca21 fix first match in RegExpMatchArray being possibly undefined when noUncheckedIndexedAccess is enabled (#49682)
* fix first match in `RegExpMatchArray` being possibly undefined when `noUncheckedIndexedAccess` is enabled

* fix tests

* add test

Co-authored-by: DetachHead <detachhead@users.noreply.github.com>
Co-authored-by: Nathan Shively-Sanders <293473+sandersn@users.noreply.github.com>
2022-08-16 10:12:12 -07:00
Andrew Branch 330e33cdda Ignore related info in diagnostic deduplication (#50309)
* Ignore related info in diagnostic deduplication

* Add another test
2022-08-16 09:28:59 -07:00
Babak K. Shandiz f24f74eb89 🔨 Fix missing "Implement interface" code fix for mapped types with implicit keyof T in their definition (#49999)
* ⚗️ Add test to verify code fix works when implementing a mapped type with indirect keyof

Signed-off-by: Babak K. Shandiz <babak.k.shandiz@gmail.com>

* 🔨 Add property as implementation for symbols that has no declaration

Signed-off-by: Babak K. Shandiz <babak.k.shandiz@gmail.com>

diff --git a/src/services/codefixes/helpers.ts b/src/services/codefixes/helpers.ts
index 94b64e57..a4c11fd5 100644
--- a/src/services/codefixes/helpers.ts
+++ b/src/services/codefixes/helpers.ts
@@ -60,21 +60,19 @@ namespace ts.codefix {
         isAmbient = false,
     ): void {
         const declarations = symbol.getDeclarations();
-        if (!(declarations && declarations.length)) {
-            return undefined;
-        }
+        const declaration = declarations ? declarations[0] : undefined;
         const checker = context.program.getTypeChecker();
         const scriptTarget = getEmitScriptTarget(context.program.getCompilerOptions());
-        const declaration = declarations[0];
+        const kind = declaration?.kind ?? SyntaxKind.PropertySignature;
         const name = getSynthesizedDeepClone(getNameOfDeclaration(declaration), /*includeTrivia*/ false) as PropertyName;
-        const visibilityModifier = createVisibilityModifier(getEffectiveModifierFlags(declaration));
+        const visibilityModifier = createVisibilityModifier(declaration ? getEffectiveModifierFlags(declaration) : ModifierFlags.None);
         const modifiers = visibilityModifier ? factory.createNodeArray([visibilityModifier]) : undefined;
         const type = checker.getWidenedType(checker.getTypeOfSymbolAtLocation(symbol, enclosingDeclaration));
         const optional = !!(symbol.flags & SymbolFlags.Optional);
         const ambient = !!(enclosingDeclaration.flags & NodeFlags.Ambient) || isAmbient;
         const quotePreference = getQuotePreference(sourceFile, preferences);

-        switch (declaration.kind) {
+        switch (kind) {
             case SyntaxKind.PropertySignature:
             case SyntaxKind.PropertyDeclaration:
                 const flags = quotePreference === QuotePreference.Single ? NodeBuilderFlags.UseSingleQuotesForStringLiteralType : undefined;
@@ -88,13 +86,16 @@ namespace ts.codefix {
                 }
                 addClassElement(factory.createPropertyDeclaration(
                     modifiers,
-                    name,
+                    declaration ? name : symbol.getName(),
                     optional && (preserveOptional & PreserveOptionalFlags.Property) ? factory.createToken(SyntaxKind.QuestionToken) : undefined,
                     typeNode,
                     /*initializer*/ undefined));
                 break;
             case SyntaxKind.GetAccessor:
             case SyntaxKind.SetAccessor: {
+                if (!declarations) {
+                    break;
+                }
                 let typeNode = checker.typeToTypeNode(type, enclosingDeclaration, /*flags*/ undefined, getNoopSymbolTrackerWithResolver(context));
                 const allAccessors = getAllAccessorDeclarations(declarations, declaration as AccessorDeclaration);
                 const orderedAccessors = allAccessors.secondAccessor
@@ -138,6 +139,10 @@ namespace ts.codefix {
                 // If there is more than one overload but no implementation signature
                 // (eg: an abstract method or interface declaration), there is a 1-1
                 // correspondence of declarations and signatures.
+                if (!declarations) {
+                    break;
+                }
+
                 const signatures = checker.getSignaturesOfType(type, SignatureKind.Call);
                 if (!some(signatures)) {
                     break;

* 🔨 Improve code readability

Signed-off-by: Babak K. Shandiz <babak.k.shandiz@gmail.com>

diff --git a/src/services/codefixes/helpers.ts b/src/services/codefixes/helpers.ts
index 2f5c8703ab..aea0206a8a 100644
--- a/src/services/codefixes/helpers.ts
+++ b/src/services/codefixes/helpers.ts
@@ -60,7 +60,7 @@ namespace ts.codefix {
         isAmbient = false,
     ): void {
         const declarations = symbol.getDeclarations();
-        const declaration = declarations ? declarations[0] : undefined;
+        const declaration = declarations?.[0];
         const checker = context.program.getTypeChecker();
         const scriptTarget = getEmitScriptTarget(context.program.getCompilerOptions());
         const kind = declaration?.kind ?? SyntaxKind.PropertySignature;
@@ -93,9 +93,7 @@ namespace ts.codefix {
                 break;
             case SyntaxKind.GetAccessor:
             case SyntaxKind.SetAccessor: {
-                if (!declarations) {
-                    break;
-                }
+                Debug.assertIsDefined(declarations);
                 let typeNode = checker.typeToTypeNode(type, enclosingDeclaration, /*flags*/ undefined, getNoopSymbolTrackerWithResolver(context));
                 const allAccessors = getAllAccessorDeclarations(declarations, declaration as AccessorDeclaration);
                 const orderedAccessors = allAccessors.secondAccessor
@@ -139,10 +137,7 @@ namespace ts.codefix {
                 // If there is more than one overload but no implementation signature
                 // (eg: an abstract method or interface declaration), there is a 1-1
                 // correspondence of declarations and signatures.
-                if (!declarations) {
-                    break;
-                }
-
+                Debug.assertIsDefined(declarations);
                 const signatures = type.isUnion() ? flatMap(type.types, t => t.getCallSignatures()) : type.getCallSignatures();
                 if (!some(signatures)) {
                     break;

* 📜 Add comment regarding mapped type children's  missing declaration

Signed-off-by: Babak K. Shandiz <babak.k.shandiz@gmail.com>

Signed-off-by: Babak K. Shandiz <babak.k.shandiz@gmail.com>
Co-authored-by: Andrew Branch <andrew@wheream.io>
2022-08-16 09:27:29 -07:00
Andrew Branch 4e33e0eb6c Make literal types not comparable to weak object types without property overlap (#49865) 2022-08-15 17:10:11 -07:00
Andrew Branch 64ee1e88e0 Strip literal freshness of contextually typed literals (#49884)
* Strip literal freshness of contextually typed literals

* Add more tests
2022-08-15 17:04:09 -07:00
Wesley Wigham e989d840f1 Forward intersectionState flag when comparing indexed access constraints (#50261) 2022-08-15 16:10:32 -07:00
Oleksandr T 61d8a8d7f3 fix(49629): fix crash in find-all-refs when using module.exports/export= with arrays/primitives (#50291) 2022-08-15 15:14:26 -07:00
Andrew Branch bc52ff6f4b Make React import fix not block component import fix (#50307)
* Stop React import fix from blocking component import fixes

* Add additional promote-type-only test
2022-08-15 13:13:41 -07:00
Ryan Cavanaugh adf26ffa4b Revert "Fixed an issue with contextual type for intersection properties (#48668)" (#50279)
This reverts commit 9236e39374.
2022-08-12 10:24:50 -07:00
Jake Bailey 5fbf3b04dc Don't treat object properties as potential JS contructors without JSDoc class tag (#49735) 2022-08-10 11:19:19 -07:00
Jack Works 382f0c3af3 fix: crashes when JSX.IntrinsicClassAttributes is an alias type close GH-50254 (#50257) 2022-08-10 10:41:12 -07:00
Jack Bates 35c6fbfee0 JSDoc @type tag optional parameters (#48132)
* JSDoc @type tag optional parameters

* Don't repeat isInJSFile() condition

* Exclude variable initializers

* Add tests for class methods

* Don't contextually type JS function declarations

* Update Baselines and/or Applied Lint Fixes

* Reword comment

Co-authored-by: TypeScript Bot <typescriptbot@microsoft.com>
2022-08-09 17:03:30 -07:00
Zzzen b94b299a11 fix CFA for BindingElement. #49759 (#49836)
* fix CFA for BindingElement. #49759

* fix Parameter

* fix controlFlowBindingPatternOrder

* fix bindParameterFlow

* add tests

* refactor

* refactor

* refactor
2022-08-09 16:37:39 -07:00
Nathan Shively-Sanders dd98c17b10 Merge multiple symbols even when re-exported (#49987)
* Merge multiple symbols even when re-exported

As far as I remember, the target of `mergeSymbol` needs to be a merged
symbol, not a symbol with a mergeId that points to mergedSymbol.
However, mergeSymbolTable didn't check for this.

I can't remember if symbol tables may contain
symbols-with-mergeId. If they can, then mergeSymbolTable needs to call
getMergedSymbol on the individual targets of the merge. That's what I
did in this PR.

* Call getMergeSymbol eagerly

On the source, not target, of mergeSymbolTable's contents
2022-08-09 16:36:53 -07:00
magic-akari abc2a350e6 Fix System module export import = (#49788)
* Add more SystemJS test case

* Fix System module `export import =`

* Update test case
2022-08-09 16:31:02 -07:00
Oleksandr T f70cb769ef feat(49928): Provide quick fix for a missing callback function (#49930)
* feat(49928): provide quick fix for a missing callback function

* remove addFunctionDeclarationFromSignature. fix formatting

* add tests
2022-08-09 15:28:03 -07:00
Oleksandr T 19e2a310c0 feat(49834): Suggestion: filter enum member ids from their own jsdocs (#49843)
* feat(49834): omit self-referenced enum declaration in JsDoc

* change code style
2022-08-09 15:02:45 -07:00
Mateusz Burzyński 0e17dc7769 Fixed a false positive related to binding patterns and spread expressions (#49684)
* Fixed a false positive related to binding patterns and spread expressions

* Improve ancestor lookup when checking if an expression is spread into an object

* Fixed ancestor lookup for more node types

* Remove equality check for contextual types

* Reformat code

* Use `isWithinSpreadAssignment` flag + `objectsWithinSpread` cache instead of ancestor traversal

* Revert "Use `isWithinSpreadAssignment` flag + `objectsWithinSpread` cache instead of ancestor traversal"

This reverts commit be387e3bbf.

* Expand on the existing comment
2022-08-08 17:01:50 -07:00