Fix implement interface quickfix import types

src/compiler/types.ts

@@ -3037,8 +3037,10 @@ namespace ts {
         /* @internal */ typeToTypeNode(type: Type, enclosingDeclaration?: Node, flags?: NodeBuilderFlags, tracker?: SymbolTracker): TypeNode | undefined; // tslint:disable-line unified-signatures
         /** Note that the resulting nodes cannot be checked. */
         signatureToSignatureDeclaration(signature: Signature, kind: SyntaxKind, enclosingDeclaration?: Node, flags?: NodeBuilderFlags): SignatureDeclaration & {typeArguments?: NodeArray<TypeNode>} | undefined;
+        /* @internal */ signatureToSignatureDeclaration(signature: Signature, kind: SyntaxKind, enclosingDeclaration?: Node, flags?: NodeBuilderFlags, tracker?: SymbolTracker): SignatureDeclaration & {typeArguments?: NodeArray<TypeNode>} | undefined;  // tslint:disable-line unified-signatures
         /** Note that the resulting nodes cannot be checked. */
         indexInfoToIndexSignatureDeclaration(indexInfo: IndexInfo, kind: IndexKind, enclosingDeclaration?: Node, flags?: NodeBuilderFlags): IndexSignatureDeclaration | undefined;
+        /* @internal */ indexInfoToIndexSignatureDeclaration(indexInfo: IndexInfo, kind: IndexKind, enclosingDeclaration?: Node, flags?: NodeBuilderFlags, tracker?: SymbolTracker): IndexSignatureDeclaration | undefined;  // tslint:disable-line unified-signatures
         /** Note that the resulting nodes cannot be checked. */
         symbolToEntityName(symbol: Symbol, meaning: SymbolFlags, enclosingDeclaration?: Node, flags?: NodeBuilderFlags): EntityName | undefined;
         /** Note that the resulting nodes cannot be checked. */

src/services/codefixes/fixAddMissingMember.ts

@@ -275,7 +275,7 @@ namespace ts.codefix {
         inJs: boolean,
         preferences: UserPreferences,
     ): void {
-        const methodDeclaration = createMethodFromCallExpression(context, callExpression, token.text, inJs, makeStatic, preferences, !isInterfaceDeclaration(typeDecl));
+        const methodDeclaration = createMethodFromCallExpression(context, callExpression, token.text, inJs, makeStatic, preferences, typeDecl);
         const containingMethodDeclaration = getAncestor(callExpression, SyntaxKind.MethodDeclaration);
 
         if (containingMethodDeclaration && containingMethodDeclaration.parent === typeDecl) {

src/services/codefixes/fixClassDoesntImplementInheritedAbstractMember.ts

@@ -8,9 +8,9 @@ namespace ts.codefix {
     registerCodeFix({
         errorCodes,
         getCodeActions(context) {
-            const { program, sourceFile, span } = context;
+            const { sourceFile, span } = context;
             const changes = textChanges.ChangeTracker.with(context, t =>
-                addMissingMembers(getClass(sourceFile, span.start), sourceFile, program.getTypeChecker(), t, context.preferences));
+                addMissingMembers(getClass(sourceFile, span.start), sourceFile, context, t, context.preferences));
             return changes.length === 0 ? undefined : [createCodeFixAction(fixId, changes, Diagnostics.Implement_inherited_abstract_class, fixId, Diagnostics.Implement_all_inherited_abstract_classes)];
         },
         fixIds: [fixId],
@@ -19,7 +19,7 @@ namespace ts.codefix {
             return codeFixAll(context, errorCodes, (changes, diag) => {
                 const classDeclaration = getClass(diag.file, diag.start);
                 if (addToSeen(seenClassDeclarations, getNodeId(classDeclaration))) {
-                    addMissingMembers(classDeclaration, context.sourceFile, context.program.getTypeChecker(), changes, context.preferences);
+                    addMissingMembers(classDeclaration, context.sourceFile, context, changes, context.preferences);
                 }
             });
         },
@@ -32,15 +32,16 @@ namespace ts.codefix {
         return cast(token.parent, isClassLike);
     }
 
-    function addMissingMembers(classDeclaration: ClassLikeDeclaration, sourceFile: SourceFile, checker: TypeChecker, changeTracker: textChanges.ChangeTracker, preferences: UserPreferences): void {
+    function addMissingMembers(classDeclaration: ClassLikeDeclaration, sourceFile: SourceFile, context: TypeConstructionContext, changeTracker: textChanges.ChangeTracker, preferences: UserPreferences): void {
         const extendsNode = getEffectiveBaseTypeNode(classDeclaration)!;
+        const checker = context.program.getTypeChecker();
         const instantiatedExtendsType = checker.getTypeAtLocation(extendsNode);
 
         // Note that this is ultimately derived from a map indexed by symbol names,
         // so duplicates cannot occur.
         const abstractAndNonPrivateExtendsSymbols = checker.getPropertiesOfType(instantiatedExtendsType).filter(symbolPointsToNonPrivateAndAbstractMember);
 
-        createMissingMemberNodes(classDeclaration, abstractAndNonPrivateExtendsSymbols, checker, preferences, member => changeTracker.insertNodeAtClassStart(sourceFile, classDeclaration, member));
+        createMissingMemberNodes(classDeclaration, abstractAndNonPrivateExtendsSymbols, context, preferences, member => changeTracker.insertNodeAtClassStart(sourceFile, classDeclaration, member));
     }
 
     function symbolPointsToNonPrivateAndAbstractMember(symbol: Symbol): boolean {

src/services/codefixes/fixClassIncorrectlyImplementsInterface.ts

@@ -6,11 +6,10 @@ namespace ts.codefix {
     registerCodeFix({
         errorCodes,
         getCodeActions(context) {
-            const { program, sourceFile, span } = context;
+            const { sourceFile, span } = context;
             const classDeclaration = getClass(sourceFile, span.start);
-            const checker = program.getTypeChecker();
             return mapDefined<ExpressionWithTypeArguments, CodeFixAction>(getClassImplementsHeritageClauseElements(classDeclaration), implementedTypeNode => {
-                const changes = textChanges.ChangeTracker.with(context, t => addMissingDeclarations(checker, implementedTypeNode, sourceFile, classDeclaration, t, context.preferences));
+                const changes = textChanges.ChangeTracker.with(context, t => addMissingDeclarations(context, implementedTypeNode, sourceFile, classDeclaration, t, context.preferences));
                 return changes.length === 0 ? undefined : createCodeFixAction(fixId, changes, [Diagnostics.Implement_interface_0, implementedTypeNode.getText(sourceFile)], fixId, Diagnostics.Implement_all_unimplemented_interfaces);
             });
         },
@@ -21,7 +20,7 @@ namespace ts.codefix {
                 const classDeclaration = getClass(diag.file, diag.start);
                 if (addToSeen(seenClassDeclarations, getNodeId(classDeclaration))) {
                     for (const implementedTypeNode of getClassImplementsHeritageClauseElements(classDeclaration)!) {
-                        addMissingDeclarations(context.program.getTypeChecker(), implementedTypeNode, diag.file, classDeclaration, changes, context.preferences);
+                        addMissingDeclarations(context, implementedTypeNode, diag.file, classDeclaration, changes, context.preferences);
                     }
                 }
             });
@@ -37,13 +36,14 @@ namespace ts.codefix {
     }
 
     function addMissingDeclarations(
-        checker: TypeChecker,
+        context: TypeConstructionContext,
         implementedTypeNode: ExpressionWithTypeArguments,
         sourceFile: SourceFile,
         classDeclaration: ClassLikeDeclaration,
         changeTracker: textChanges.ChangeTracker,
         preferences: UserPreferences,
     ): void {
+        const checker = context.program.getTypeChecker();
         const maybeHeritageClauseSymbol = getHeritageClauseSymbolTable(classDeclaration, checker);
         // Note that this is ultimately derived from a map indexed by symbol names,
         // so duplicates cannot occur.
@@ -60,12 +60,12 @@ namespace ts.codefix {
             createMissingIndexSignatureDeclaration(implementedType, IndexKind.String);
         }
 
-        createMissingMemberNodes(classDeclaration, nonPrivateAndNotExistedInHeritageClauseMembers, checker, preferences, member => changeTracker.insertNodeAtClassStart(sourceFile, classDeclaration, member));
+        createMissingMemberNodes(classDeclaration, nonPrivateAndNotExistedInHeritageClauseMembers, context, preferences, member => changeTracker.insertNodeAtClassStart(sourceFile, classDeclaration, member));
 
         function createMissingIndexSignatureDeclaration(type: InterfaceType, kind: IndexKind): void {
             const indexInfoOfKind = checker.getIndexInfoOfType(type, kind);
             if (indexInfoOfKind) {
-                changeTracker.insertNodeAtClassStart(sourceFile, classDeclaration, checker.indexInfoToIndexSignatureDeclaration(indexInfoOfKind, kind, classDeclaration)!);
+                changeTracker.insertNodeAtClassStart(sourceFile, classDeclaration, checker.indexInfoToIndexSignatureDeclaration(indexInfoOfKind, kind, classDeclaration, /*flags*/ undefined, getNoopSymbolTrackerWithResolver(context))!);
             }
         }
     }

src/services/codefixes/helpers.ts

@@ -6,23 +6,48 @@ namespace ts.codefix {
      * @param possiblyMissingSymbols The collection of symbols to filter and then get insertions for.
      * @returns Empty string iff there are no member insertions.
      */
-    export function createMissingMemberNodes(classDeclaration: ClassLikeDeclaration, possiblyMissingSymbols: ReadonlyArray<Symbol>, checker: TypeChecker, preferences: UserPreferences, out: (node: ClassElement) => void): void {
+    export function createMissingMemberNodes(classDeclaration: ClassLikeDeclaration, possiblyMissingSymbols: ReadonlyArray<Symbol>, context: TypeConstructionContext, preferences: UserPreferences, out: (node: ClassElement) => void): void {
         const classMembers = classDeclaration.symbol.members!;
         for (const symbol of possiblyMissingSymbols) {
             if (!classMembers.has(symbol.escapedName)) {
-                addNewNodeForMemberSymbol(symbol, classDeclaration, checker, preferences, out);
+                addNewNodeForMemberSymbol(symbol, classDeclaration, context, preferences, out);
             }
         }
     }
 
+    function getModuleSpecifierResolverHost(context: TypeConstructionContext): SymbolTracker["moduleResolverHost"] {
+        return {
+            directoryExists: context.host.directoryExists ? d => context.host.directoryExists!(d) : undefined,
+            fileExists: context.host.fileExists ? f => context.host.fileExists!(f) : undefined,
+            getCurrentDirectory: context.host.getCurrentDirectory ? () => context.host.getCurrentDirectory!() : undefined,
+            readFile: context.host.readFile ? f => context.host.readFile!(f) : undefined,
+            useCaseSensitiveFileNames: context.host.useCaseSensitiveFileNames ? () => context.host.useCaseSensitiveFileNames!() : undefined,
+            getSourceFiles: () => context.program.getSourceFiles(),
+            getCommonSourceDirectory: () => context.program.getCommonSourceDirectory(),
+        };
+    }
+
+    export function getNoopSymbolTrackerWithResolver(context: TypeConstructionContext): SymbolTracker {
+        return {
+            trackSymbol: noop,
+            moduleResolverHost: getModuleSpecifierResolverHost(context),
+        };
+    }
+
+    export interface TypeConstructionContext {
+        program: Program;
+        host: ModuleSpecifierResolutionHost;
+    }
+
     /**
      * @returns Empty string iff there we can't figure out a representation for `symbol` in `enclosingDeclaration`.
      */
-    function addNewNodeForMemberSymbol(symbol: Symbol, enclosingDeclaration: ClassLikeDeclaration, checker: TypeChecker, preferences: UserPreferences, out: (node: Node) => void): void {
+    function addNewNodeForMemberSymbol(symbol: Symbol, enclosingDeclaration: ClassLikeDeclaration, context: TypeConstructionContext, preferences: UserPreferences, out: (node: Node) => void): void {
         const declarations = symbol.getDeclarations();
         if (!(declarations && declarations.length)) {
             return undefined;
         }
+        const checker = context.program.getTypeChecker();
 
         const declaration = declarations[0];
         const name = getSynthesizedDeepClone(getNameOfDeclaration(declaration), /*includeTrivia*/ false) as PropertyName;
@@ -36,7 +61,7 @@ namespace ts.codefix {
             case SyntaxKind.SetAccessor:
             case SyntaxKind.PropertySignature:
             case SyntaxKind.PropertyDeclaration:
-                const typeNode = checker.typeToTypeNode(type, enclosingDeclaration);
+                const typeNode = checker.typeToTypeNode(type, enclosingDeclaration, /*flags*/ undefined, getNoopSymbolTrackerWithResolver(context));
                 out(createProperty(
                     /*decorators*/undefined,
                     modifiers,
@@ -83,21 +108,22 @@ namespace ts.codefix {
         }
 
         function outputMethod(signature: Signature, modifiers: NodeArray<Modifier> | undefined, name: PropertyName, body?: Block): void {
-            const method = signatureToMethodDeclaration(checker, signature, enclosingDeclaration, modifiers, name, optional, body);
+            const method = signatureToMethodDeclaration(context, signature, enclosingDeclaration, modifiers, name, optional, body);
             if (method) out(method);
         }
     }
 
     function signatureToMethodDeclaration(
-        checker: TypeChecker,
+        context: TypeConstructionContext,
         signature: Signature,
         enclosingDeclaration: ClassLikeDeclaration,
         modifiers: NodeArray<Modifier> | undefined,
         name: PropertyName,
         optional: boolean,
         body: Block | undefined,
     ): MethodDeclaration | undefined {
-        const signatureDeclaration = <MethodDeclaration>checker.signatureToSignatureDeclaration(signature, SyntaxKind.MethodDeclaration, enclosingDeclaration, NodeBuilderFlags.NoTruncation | NodeBuilderFlags.SuppressAnyReturnType);
+        const program = context.program;
+        const signatureDeclaration = <MethodDeclaration>program.getTypeChecker().signatureToSignatureDeclaration(signature, SyntaxKind.MethodDeclaration, enclosingDeclaration, NodeBuilderFlags.NoTruncation | NodeBuilderFlags.SuppressAnyReturnType, getNoopSymbolTrackerWithResolver(context));
         if (!signatureDeclaration) {
             return undefined;
         }
@@ -117,18 +143,20 @@ namespace ts.codefix {
         inJs: boolean,
         makeStatic: boolean,
         preferences: UserPreferences,
-        body: boolean,
+        contextNode: Node,
     ): MethodDeclaration {
+        const body = !isInterfaceDeclaration(contextNode);
         const { typeArguments, arguments: args, parent } = call;
         const checker = context.program.getTypeChecker();
+        const tracker = getNoopSymbolTrackerWithResolver(context);
         const types = map(args, arg =>
             // Widen the type so we don't emit nonsense annotations like "function fn(x: 3) {"
-            checker.typeToTypeNode(checker.getBaseTypeOfLiteralType(checker.getTypeAtLocation(arg))));
+            checker.typeToTypeNode(checker.getBaseTypeOfLiteralType(checker.getTypeAtLocation(arg)), contextNode, /*flags*/ undefined, tracker));
         const names = map(args, arg =>
             isIdentifier(arg) ? arg.text :
                 isPropertyAccessExpression(arg) ? arg.name.text : undefined);
         const contextualType = checker.getContextualType(call);
-        const returnType = inJs ? undefined : contextualType && checker.typeToTypeNode(contextualType, call) || createKeywordTypeNode(SyntaxKind.AnyKeyword);
+        const returnType = inJs ? undefined : contextualType && checker.typeToTypeNode(contextualType, contextNode, /*flags*/ undefined, tracker) || createKeywordTypeNode(SyntaxKind.AnyKeyword);
         return createMethod(
             /*decorators*/ undefined,
             /*modifiers*/ makeStatic ? [createToken(SyntaxKind.StaticKeyword)] : undefined,

tests/cases/fourslash/codeFixClassImplementInterface_typeInOtherFile.ts

@@ -17,8 +17,8 @@ verify.codeFix({
     newFileContent:
 `import { I } from "./I";
 export class C implements I {
-    x: import("/I").J;
-    m(): import("/I").J {
+    x: import("./I").J;
+    m(): import("./I").J {
         throw new Error("Method not implemented.");
     }
 }`,

tests/cases/fourslash/codeFixUndeclaredAcrossFiles3.ts

@@ -20,7 +20,7 @@
 verify.getAndApplyCodeFix(/*errorCode*/ undefined, 0);
 
 verify.rangeIs(`
-    m0(arg0: D): any {
+    m0(arg0: import("./f2").D): any {
         throw new Error("Method not implemented.");
     }
 `);

tests/cases/fourslash/quickfixImplementInterfaceUnreachableTypeUsesRelativeImport.ts

@@ -0,0 +1,26 @@
+/// <reference path="fourslash.ts" />
+
+// @Filename: class.ts
+////export class Class { }
+// @Filename: interface.ts
+////import { Class } from './class';
+////
+////export interface Foo {
+////    x: Class;
+////}
+// @Filename: index.ts
+////import { Foo } from './interface';
+////
+////class /*1*/X implements Foo {}
+goTo.marker("1");
+verify.codeFix({
+    index: 0,
+    description: "Implement interface 'Foo'",
+    newFileContent: {
+        "/tests/cases/fourslash/index.ts": `import { Foo } from './interface';
+
+class X implements Foo {
+    x: import("./class").Class;
+}`
+    }
+});