fix(36140): handle quotesPreference option in interface implementation (#36398)

src/compiler/checker.ts

@@ -3956,7 +3956,7 @@ namespace ts {
                 }
                 if (type.flags & TypeFlags.StringLiteral) {
                     context.approximateLength += ((<StringLiteralType>type).value.length + 2);
-                    return createLiteralTypeNode(setEmitFlags(createLiteral((<StringLiteralType>type).value), EmitFlags.NoAsciiEscaping));
+                    return createLiteralTypeNode(setEmitFlags(createLiteral((<StringLiteralType>type).value, !!(context.flags & NodeBuilderFlags.UseSingleQuotesForStringLiteralType)), EmitFlags.NoAsciiEscaping));
                 }
                 if (type.flags & TypeFlags.NumberLiteral) {
                     const value = (<NumberLiteralType>type).value;

src/compiler/types.ts

@@ -3630,6 +3630,7 @@ namespace ts {
         UseTypeOfFunction                       = 1 << 12,  // Build using typeof instead of function type literal
         OmitParameterModifiers                  = 1 << 13,  // Omit modifiers on parameters
         UseAliasDefinedOutsideCurrentScope      = 1 << 14,  // Allow non-visible aliases
+        UseSingleQuotesForStringLiteralType     = 1 << 28,  // Use single quotes for string literal type
 
         // Error handling
         AllowThisInObjectLiteral                = 1 << 15,
@@ -3672,6 +3673,7 @@ namespace ts {
         OmitParameterModifiers                  = 1 << 13, // Omit modifiers on parameters
 
         UseAliasDefinedOutsideCurrentScope      = 1 << 14, // For a `type T = ... ` defined in a different file, write `T` instead of its value, even though `T` can't be accessed in the current scope.
+        UseSingleQuotesForStringLiteralType     = 1 << 28, // Use single quotes for string literal type
 
         // Error Handling
         AllowUniqueESSymbolType                 = 1 << 20, // This is bit 20 to align with the same bit in `NodeBuilderFlags`
@@ -3690,7 +3692,8 @@ namespace ts {
 
         NodeBuilderFlagsMask = NoTruncation | WriteArrayAsGenericType | UseStructuralFallback | WriteTypeArgumentsOfSignature |
             UseFullyQualifiedType | SuppressAnyReturnType | MultilineObjectLiterals | WriteClassExpressionAsTypeLiteral |
-            UseTypeOfFunction | OmitParameterModifiers | UseAliasDefinedOutsideCurrentScope | AllowUniqueESSymbolType | InTypeAlias,
+            UseTypeOfFunction | OmitParameterModifiers | UseAliasDefinedOutsideCurrentScope | AllowUniqueESSymbolType | InTypeAlias |
+            UseSingleQuotesForStringLiteralType,
     }
 
     export const enum SymbolFormatFlags {

src/services/codefixes/helpers.ts

@@ -60,7 +60,8 @@ namespace ts.codefix {
         switch (declaration.kind) {
             case SyntaxKind.PropertySignature:
             case SyntaxKind.PropertyDeclaration:
-                const typeNode = checker.typeToTypeNode(type, enclosingDeclaration, /*flags*/ undefined, getNoopSymbolTrackerWithResolver(context));
+                const flags = preferences.quotePreference === "single" ? NodeBuilderFlags.UseSingleQuotesForStringLiteralType : undefined;
+                const typeNode = checker.typeToTypeNode(type, enclosingDeclaration, flags, getNoopSymbolTrackerWithResolver(context));
                 out(createProperty(
                     /*decorators*/undefined,
                     modifiers,

tests/baselines/reference/api/tsserverlibrary.d.ts

@@ -2118,6 +2118,7 @@ declare namespace ts {
         UseTypeOfFunction = 4096,
         OmitParameterModifiers = 8192,
         UseAliasDefinedOutsideCurrentScope = 16384,
+        UseSingleQuotesForStringLiteralType = 268435456,
         AllowThisInObjectLiteral = 32768,
         AllowQualifedNameInPlaceOfIdentifier = 65536,
         AllowAnonymousIdentifier = 131072,
@@ -2145,6 +2146,7 @@ declare namespace ts {
         UseTypeOfFunction = 4096,
         OmitParameterModifiers = 8192,
         UseAliasDefinedOutsideCurrentScope = 16384,
+        UseSingleQuotesForStringLiteralType = 268435456,
         AllowUniqueESSymbolType = 1048576,
         AddUndefined = 131072,
         WriteArrowStyleSignature = 262144,
@@ -2153,7 +2155,7 @@ declare namespace ts {
         InFirstTypeArgument = 4194304,
         InTypeAlias = 8388608,
         /** @deprecated */ WriteOwnNameForAnyLike = 0,
-        NodeBuilderFlagsMask = 9469291
+        NodeBuilderFlagsMask = 277904747
     }
     export enum SymbolFormatFlags {
         None = 0,

tests/baselines/reference/api/typescript.d.ts

@@ -2118,6 +2118,7 @@ declare namespace ts {
         UseTypeOfFunction = 4096,
         OmitParameterModifiers = 8192,
         UseAliasDefinedOutsideCurrentScope = 16384,
+        UseSingleQuotesForStringLiteralType = 268435456,
         AllowThisInObjectLiteral = 32768,
         AllowQualifedNameInPlaceOfIdentifier = 65536,
         AllowAnonymousIdentifier = 131072,
@@ -2145,6 +2146,7 @@ declare namespace ts {
         UseTypeOfFunction = 4096,
         OmitParameterModifiers = 8192,
         UseAliasDefinedOutsideCurrentScope = 16384,
+        UseSingleQuotesForStringLiteralType = 268435456,
         AllowUniqueESSymbolType = 1048576,
         AddUndefined = 131072,
         WriteArrowStyleSignature = 262144,
@@ -2153,7 +2155,7 @@ declare namespace ts {
         InFirstTypeArgument = 4194304,
         InTypeAlias = 8388608,
         /** @deprecated */ WriteOwnNameForAnyLike = 0,
-        NodeBuilderFlagsMask = 9469291
+        NodeBuilderFlagsMask = 277904747
     }
     export enum SymbolFormatFlags {
         None = 0,

tests/cases/fourslash/codeFixClassImplementInterface1_optionQuote.ts

@@ -0,0 +1,21 @@
+/// <reference path='fourslash.ts' />
+
+////interface IFoo {
+////    a: 'string';
+////    c: { d: 'string'; };
+////}
+////class Foo implements IFoo {}
+
+verify.codeFix({
+    description: [ts.Diagnostics.Implement_interface_0.message, "IFoo"],
+    newFileContent:
+`interface IFoo {
+    a: 'string';
+    c: { d: 'string'; };
+}
+class Foo implements IFoo {
+    a: 'string';
+    c: { d: 'string'; };
+}`,
+    preferences: { quotePreference: "single" }
+});