make rules optional

src/harness/fourslash.ts

@@ -324,6 +324,7 @@ namespace FourSlash {
                 InsertSpaceAfterOpeningAndBeforeClosingNonemptyParenthesis: false,
                 InsertSpaceAfterOpeningAndBeforeClosingNonemptyBrackets: false,
                 InsertSpaceAfterOpeningAndBeforeClosingTemplateStringBraces: false,
+                InsertSpaceAfterOpeningAndBeforeClosingJsxExpressionBraces: false,
                 PlaceOpenBraceOnNewLineForFunctions: false,
                 PlaceOpenBraceOnNewLineForControlBlocks: false,
             };

src/server/editorServices.ts

@@ -1580,6 +1580,7 @@ namespace ts.server {
                 InsertSpaceAfterOpeningAndBeforeClosingNonemptyParenthesis: false,
                 InsertSpaceAfterOpeningAndBeforeClosingNonemptyBrackets: false,
                 InsertSpaceAfterOpeningAndBeforeClosingTemplateStringBraces: false,
+                InsertSpaceAfterOpeningAndBeforeClosingJsxExpressionBraces: false,
                 PlaceOpenBraceOnNewLineForFunctions: false,
                 PlaceOpenBraceOnNewLineForControlBlocks: false,
             });

src/services/formatting/rules.ts

@@ -52,10 +52,6 @@ namespace ts.formatting {
         public SpaceBeforeCloseBrace: Rule;
         public NoSpaceBetweenEmptyBraceBrackets: Rule;
 
-        // No space after { and before } in JSX expression
-        public NoSpaceAfterOpenBraceInJsxExpression: Rule;
-        public NoSpaceBeforeCloseBraceInJsxExpression: Rule;
-
         // Insert new line after { and before } in multi-line contexts.
         public NewLineAfterOpenBraceInBlockContext: Rule;
 
@@ -229,6 +225,12 @@ namespace ts.formatting {
         public NoSpaceBeforeTemplateMiddleAndTail: Rule;
         public SpaceBeforeTemplateMiddleAndTail: Rule;
 
+        // No space after { and before } in JSX expression
+        public NoSpaceAfterOpenBraceInJsxExpression: Rule;
+        public SpaceAfterOpenBraceInJsxExpression: Rule;
+        public NoSpaceBeforeCloseBraceInJsxExpression: Rule;
+        public SpaceBeforeCloseBraceInJsxExpression: Rule;
+
         constructor() {
             ///
             /// Common Rules
@@ -280,10 +282,6 @@ namespace ts.formatting {
             this.SpaceBeforeCloseBrace = new Rule(RuleDescriptor.create2(Shared.TokenRange.Any, SyntaxKind.CloseBraceToken), RuleOperation.create2(new RuleOperationContext(Rules.IsSingleLineBlockContext), RuleAction.Space));
             this.NoSpaceBetweenEmptyBraceBrackets = new Rule(RuleDescriptor.create1(SyntaxKind.OpenBraceToken, SyntaxKind.CloseBraceToken), RuleOperation.create2(new RuleOperationContext(Rules.IsNonJsxSameLineTokenContext, Rules.IsObjectContext), RuleAction.Delete));
 
-            // No space after { and before } in JSX expression
-            this.NoSpaceAfterOpenBraceInJsxExpression = new Rule(RuleDescriptor.create3(SyntaxKind.OpenBraceToken, Shared.TokenRange.Any), RuleOperation.create2(new RuleOperationContext(Rules.IsNonJsxSameLineTokenContext, Rules.isJsxExpressionContext), RuleAction.Delete));
-            this.NoSpaceBeforeCloseBraceInJsxExpression = new Rule(RuleDescriptor.create2(Shared.TokenRange.Any, SyntaxKind.CloseBraceToken), RuleOperation.create2(new RuleOperationContext(Rules.IsNonJsxSameLineTokenContext, Rules.isJsxExpressionContext), RuleAction.Delete));
-
             // Insert new line after { and before } in multi-line contexts.
             this.NewLineAfterOpenBraceInBlockContext = new Rule(RuleDescriptor.create3(SyntaxKind.OpenBraceToken, Shared.TokenRange.Any), RuleOperation.create2(new RuleOperationContext(Rules.IsMultilineBlockContext), RuleAction.NewLine));
 
@@ -403,7 +401,6 @@ namespace ts.formatting {
                 this.SpaceAfterSubtractWhenFollowedByUnaryMinus, this.SpaceAfterSubtractWhenFollowedByPredecrement,
                 this.NoSpaceAfterCloseBrace,
                 this.SpaceAfterOpenBrace, this.SpaceBeforeCloseBrace, this.NewLineBeforeCloseBraceInBlockContext,
-                this.NoSpaceAfterOpenBraceInJsxExpression, this.NoSpaceBeforeCloseBraceInJsxExpression,
                 this.SpaceAfterCloseBrace, this.SpaceBetweenCloseBraceAndElse, this.SpaceBetweenCloseBraceAndWhile, this.NoSpaceBetweenEmptyBraceBrackets,
                 this.NoSpaceBetweenFunctionKeywordAndStar, this.SpaceAfterStarInGeneratorDeclaration,
                 this.SpaceAfterFunctionInFuncDecl, this.NewLineAfterOpenBraceInBlockContext, this.SpaceAfterGetSetInMember,
@@ -500,6 +497,12 @@ namespace ts.formatting {
             this.NoSpaceBeforeTemplateMiddleAndTail = new Rule(RuleDescriptor.create4(Shared.TokenRange.Any, Shared.TokenRange.FromTokens([SyntaxKind.TemplateMiddle, SyntaxKind.TemplateTail])), RuleOperation.create2(new RuleOperationContext(Rules.IsNonJsxSameLineTokenContext), RuleAction.Delete));
             this.SpaceBeforeTemplateMiddleAndTail = new Rule(RuleDescriptor.create4(Shared.TokenRange.Any, Shared.TokenRange.FromTokens([SyntaxKind.TemplateMiddle, SyntaxKind.TemplateTail])), RuleOperation.create2(new RuleOperationContext(Rules.IsNonJsxSameLineTokenContext), RuleAction.Space));
 
+            // No space after { and before } in JSX expression
+            this.NoSpaceAfterOpenBraceInJsxExpression = new Rule(RuleDescriptor.create3(SyntaxKind.OpenBraceToken, Shared.TokenRange.Any), RuleOperation.create2(new RuleOperationContext(Rules.IsNonJsxSameLineTokenContext, Rules.isJsxExpressionContext), RuleAction.Delete));
+            this.SpaceAfterOpenBraceInJsxExpression = new Rule(RuleDescriptor.create3(SyntaxKind.OpenBraceToken, Shared.TokenRange.Any), RuleOperation.create2(new RuleOperationContext(Rules.IsNonJsxSameLineTokenContext, Rules.isJsxExpressionContext), RuleAction.Space));
+            this.NoSpaceBeforeCloseBraceInJsxExpression = new Rule(RuleDescriptor.create2(Shared.TokenRange.Any, SyntaxKind.CloseBraceToken), RuleOperation.create2(new RuleOperationContext(Rules.IsNonJsxSameLineTokenContext, Rules.isJsxExpressionContext), RuleAction.Delete));
+            this.SpaceBeforeCloseBraceInJsxExpression = new Rule(RuleDescriptor.create2(Shared.TokenRange.Any, SyntaxKind.CloseBraceToken), RuleOperation.create2(new RuleOperationContext(Rules.IsNonJsxSameLineTokenContext, Rules.isJsxExpressionContext), RuleAction.Space));
+
             // Insert space after function keyword for anonymous functions
             this.SpaceAfterAnonymousFunctionKeyword = new Rule(RuleDescriptor.create1(SyntaxKind.FunctionKeyword, SyntaxKind.OpenParenToken), RuleOperation.create2(new RuleOperationContext(Rules.IsFunctionDeclContext), RuleAction.Space));
             this.NoSpaceAfterAnonymousFunctionKeyword = new Rule(RuleDescriptor.create1(SyntaxKind.FunctionKeyword, SyntaxKind.OpenParenToken), RuleOperation.create2(new RuleOperationContext(Rules.IsFunctionDeclContext), RuleAction.Delete));

src/services/formatting/rulesProvider.ts

@@ -90,6 +90,15 @@ namespace ts.formatting {
                 rules.push(this.globalRules.NoSpaceBeforeTemplateMiddleAndTail);
             }
 
+            if (options.InsertSpaceAfterOpeningAndBeforeClosingJsxExpressionBraces) {
+                rules.push(this.globalRules.SpaceAfterOpenBraceInJsxExpression);
+                rules.push(this.globalRules.SpaceBeforeCloseBraceInJsxExpression);
+            }
+            else {
+                rules.push(this.globalRules.NoSpaceAfterOpenBraceInJsxExpression);
+                rules.push(this.globalRules.NoSpaceBeforeCloseBraceInJsxExpression);
+            }
+
             if (options.InsertSpaceAfterSemicolonInForStatements) {
                 rules.push(this.globalRules.SpaceAfterSemicolonInFor);
             }

src/services/services.ts

@@ -1267,6 +1267,7 @@ namespace ts {
         InsertSpaceAfterOpeningAndBeforeClosingNonemptyParenthesis: boolean;
         InsertSpaceAfterOpeningAndBeforeClosingNonemptyBrackets: boolean;
         InsertSpaceAfterOpeningAndBeforeClosingTemplateStringBraces: boolean;
+        InsertSpaceAfterOpeningAndBeforeClosingJsxExpressionBraces: boolean;
         PlaceOpenBraceOnNewLineForFunctions: boolean;
         PlaceOpenBraceOnNewLineForControlBlocks: boolean;
         [s: string]: boolean | number | string | undefined;