From 14ec73d963587409a1465ddd33ce180b4251cfeb Mon Sep 17 00:00:00 2001
From: Omri Luzon <omril@testim.io>
Date: Fri, 9 Dec 2022 23:15:34 +0200
Subject: [PATCH 01/18] feat/issue5990-extend-base-block-spacing

---
 .../eslint-plugin/docs/rules/block-spacing.md | 12 +++
 .../eslint-plugin/src/rules/block-spacing.ts  | 40 ++++++++++
 .../src/util/getESLintCoreRule.ts             |  1 +
 .../tests/rules/block-spacing.test.ts         | 80 +++++++++++++++++++
 .../eslint-plugin/typings/eslint-rules.d.ts   | 15 ++++
 5 files changed, 148 insertions(+)
 create mode 100644 packages/eslint-plugin/docs/rules/block-spacing.md
 create mode 100644 packages/eslint-plugin/src/rules/block-spacing.ts
 create mode 100644 packages/eslint-plugin/tests/rules/block-spacing.test.ts

diff --git a/packages/eslint-plugin/docs/rules/block-spacing.md b/packages/eslint-plugin/docs/rules/block-spacing.md
new file mode 100644
index 000000000000..667c8b9bc844
--- /dev/null
+++ b/packages/eslint-plugin/docs/rules/block-spacing.md
@@ -0,0 +1,12 @@
+---
+description: 'Enforce consistent spacing before and after keywords.'
+---
+
+> 🛑 This file is source code, not the primary documentation location! 🛑
+>
+> See **https://typescript-eslint.io/rules/block-spacing** for documentation.
+
+## Examples
+
+This rule extends the base [`eslint/block-spacing`](https://eslint.org/docs/rules/block-spacing) rule.
+This version adds support for generic type parameters on function calls.
diff --git a/packages/eslint-plugin/src/rules/block-spacing.ts b/packages/eslint-plugin/src/rules/block-spacing.ts
new file mode 100644
index 000000000000..523cd949eca8
--- /dev/null
+++ b/packages/eslint-plugin/src/rules/block-spacing.ts
@@ -0,0 +1,40 @@
+import type { TSESTree } from '@typescript-eslint/utils';
+import { AST_NODE_TYPES, AST_TOKEN_TYPES } from '@typescript-eslint/utils';
+
+import * as util from '../util';
+import { getESLintCoreRule } from '../util/getESLintCoreRule';
+
+const baseRule = getESLintCoreRule('block-spacing');
+
+export type Options = util.InferOptionsTypeFromRule<typeof baseRule>;
+export type MessageIds = util.InferMessageIdsTypeFromRule<typeof baseRule>;
+
+export default util.createRule<Options, MessageIds>({
+  name: 'block-spacing',
+  meta: {
+    type: 'layout',
+    docs: {
+      description: 'Enforce consistent spacing before and after keywords',
+      recommended: false,
+      extendsBaseRule: true,
+    },
+    fixable: 'whitespace',
+    hasSuggestions: baseRule.meta.hasSuggestions,
+    schema: baseRule.meta.schema,
+    messages: baseRule.meta.messages,
+  },
+  defaultOptions: ['always'],
+
+  create(context, [whenToApplyOption]) {
+    const sourceCode = context.getSourceCode();
+    const baseRules = baseRule.create(context);
+    return {
+      ...baseRules,
+      // TSInterfaceBody(node): void {},
+      // TSTypeLiteral(node): void {},
+
+      TSInterfaceBody: baseRules.BlockStatement as never,
+      TSTypeLiteral: baseRules.BlockStatement as never,
+    };
+  },
+});
diff --git a/packages/eslint-plugin/src/util/getESLintCoreRule.ts b/packages/eslint-plugin/src/util/getESLintCoreRule.ts
index 1678903acd32..a4bad9c00af8 100644
--- a/packages/eslint-plugin/src/util/getESLintCoreRule.ts
+++ b/packages/eslint-plugin/src/util/getESLintCoreRule.ts
@@ -7,6 +7,7 @@ const isESLintV8 = semver.major(version) >= 8;
 interface RuleMap {
   /* eslint-disable @typescript-eslint/consistent-type-imports -- more concise to use inline imports */
   'arrow-parens': typeof import('eslint/lib/rules/arrow-parens');
+  'block-spacing': typeof import('eslint/lib/rules/block-spacing');
   'brace-style': typeof import('eslint/lib/rules/brace-style');
   'comma-dangle': typeof import('eslint/lib/rules/comma-dangle');
   'dot-notation': typeof import('eslint/lib/rules/dot-notation');
diff --git a/packages/eslint-plugin/tests/rules/block-spacing.test.ts b/packages/eslint-plugin/tests/rules/block-spacing.test.ts
new file mode 100644
index 000000000000..1ab625ea9c33
--- /dev/null
+++ b/packages/eslint-plugin/tests/rules/block-spacing.test.ts
@@ -0,0 +1,80 @@
+/* eslint-disable eslint-comments/no-use */
+// this rule tests the spacing, which prettier will want to fix and break the tests
+/* eslint "@typescript-eslint/internal/plugin-test-formatting": ["error", { formatWithPrettier: false }] */
+/* eslint-enable eslint-comments/no-use */
+import { AST_NODE_TYPES, TSESLint } from '@typescript-eslint/utils';
+
+import type { MessageIds, Options } from '../../src/rules/block-spacing';
+import rule from '../../src/rules/block-spacing';
+import type { InvalidTestCase } from '../RuleTester';
+import { RuleTester } from '../RuleTester';
+
+const ruleTester = new RuleTester({
+  parser: '@typescript-eslint/parser',
+});
+
+type InvalidBlockSpacingTestCase = InvalidTestCase<
+  'missing' | 'extra',
+  ['always' | 'never']
+>;
+
+const options = [['always'], ['never']] as const;
+const typeDeclaration = [
+  {
+    nodeType: AST_NODE_TYPES.TSInterfaceBody,
+    stringPrefix: 'interface Foo ',
+  },
+  {
+    nodeType: AST_NODE_TYPES.TSTypeLiteral,
+    stringPrefix: 'type Foo = ',
+  },
+];
+const emptyBlocks = ['{}', '{ }'];
+const singlePropertyBlocks = ['{bar: true}', '{ bar: true }'];
+
+ruleTester.run('block-spacing', rule, {
+  valid: [
+    // Empty blocks don't apply
+    ...options.flatMap(options =>
+      typeDeclaration.flatMap(typeDec =>
+        emptyBlocks.map(blockType => ({
+          code: typeDec.stringPrefix + blockType,
+          options,
+        })),
+      ),
+    ),
+  ],
+  invalid: [
+    ...options.flatMap(options =>
+      typeDeclaration.flatMap(typeDec =>
+        singlePropertyBlocks.map<InvalidBlockSpacingTestCase>(
+          (blockType, blockIndex) => {
+            return {
+              code: typeDec.stringPrefix + blockType,
+              options,
+              output:
+                typeDec.stringPrefix + singlePropertyBlocks[1 - blockIndex],
+              errors: [
+                {
+                  type: typeDec.nodeType,
+                  // line: 1,
+                  // column: 1,
+                  messageId: 'missing',
+                  data: { location: 'after', token: '{' },
+                },
+                {
+                  type: typeDec.nodeType,
+                  // line: 1,
+                  // column: 8,
+                  messageId: 'missing',
+                  data: { location: 'before', token: '}' },
+                },
+              ],
+            };
+          },
+        ),
+      ),
+    ),
+    // .filter(_case => JSON.stringify(_case).includes('type ')),
+  ],
+});
diff --git a/packages/eslint-plugin/typings/eslint-rules.d.ts b/packages/eslint-plugin/typings/eslint-rules.d.ts
index 09b54ae4a516..77ca513d1fb3 100644
--- a/packages/eslint-plugin/typings/eslint-rules.d.ts
+++ b/packages/eslint-plugin/typings/eslint-rules.d.ts
@@ -609,6 +609,21 @@ declare module 'eslint/lib/rules/quotes' {
   export = rule;
 }
 
+declare module 'eslint/lib/rules/block-spacing' {
+  import type { TSESLint, TSESTree } from '@typescript-eslint/utils';
+
+  const rule: TSESLint.RuleModule<
+    'missing' | 'extra',
+    ['always' | 'never'],
+    {
+      BlockStatement(node: TSESTree.BlockStatement): void;
+      StaticBlock(node: TSESTree.StaticBlock): void;
+      SwitchStatement(node: TSESTree.SwitchStatement): void;
+    }
+  >;
+  export = rule;
+}
+
 declare module 'eslint/lib/rules/brace-style' {
   import type { TSESLint, TSESTree } from '@typescript-eslint/utils';
 

From f39392891527842760555dc93c66ea1b17f092d5 Mon Sep 17 00:00:00 2001
From: Omri Luzon <omril@testim.io>
Date: Sat, 10 Dec 2022 00:02:22 +0200
Subject: [PATCH 02/18] for history

---
 .../eslint-plugin/src/rules/block-spacing.ts  | 155 +++++++++++++++++-
 1 file changed, 151 insertions(+), 4 deletions(-)

diff --git a/packages/eslint-plugin/src/rules/block-spacing.ts b/packages/eslint-plugin/src/rules/block-spacing.ts
index 523cd949eca8..6d05ea22e3a5 100644
--- a/packages/eslint-plugin/src/rules/block-spacing.ts
+++ b/packages/eslint-plugin/src/rules/block-spacing.ts
@@ -28,13 +28,160 @@ export default util.createRule<Options, MessageIds>({
   create(context, [whenToApplyOption]) {
     const sourceCode = context.getSourceCode();
     const baseRules = baseRule.create(context);
+    const always = whenToApplyOption !== 'never';
+    const messageId = always ? 'missing' : 'extra';
+    /**
+     * Gets the open brace token from a given node.
+     * @returns The token of the open brace.
+     */
+    function getOpenBrace(
+      node: TSESTree.TSInterfaceBody | TSESTree.TSTypeLiteral,
+    ):
+      | TSESTree.BooleanToken
+      | TSESTree.IdentifierToken
+      | TSESTree.JSXIdentifierToken
+      | TSESTree.JSXTextToken
+      | TSESTree.KeywordToken
+      | TSESTree.NullToken
+      | TSESTree.NumericToken
+      | TSESTree.PunctuatorToken
+      | TSESTree.RegularExpressionToken
+      | TSESTree.StringToken
+      | TSESTree.TemplateToken {
+      if (node.type === AST_NODE_TYPES.TSInterfaceBody) {
+        return sourceCode.getFirstToken(node, { skip: 0 })!;
+      }
+      if (node.type === AST_NODE_TYPES.TSTypeLiteral) {
+        return sourceCode.getFirstToken(node, { skip: 0 })!;
+      }
+
+      return sourceCode.getFirstToken(node)!;
+    }
+
+    /**
+     * Checks whether or not:
+     *   - given tokens are on same line.
+     *   - there is/isn't a space between given tokens.
+     * @param left A token to check.
+     * @param right The token which is next to `left`.
+     * @returns
+     *    When the option is `"always"`, `true` if there are one or more spaces between given tokens.
+     *    When the option is `"never"`, `true` if there are not any spaces between given tokens.
+     *    If given tokens are not on same line, it's always `true`.
+     */
+    function isValid(left: TSESTree.Token, right: TSESTree.Token): boolean {
+      // console.log({
+      //   'sourceCode.text,': sourceCode.text,
+      //   'whenToApplyOption,': whenToApplyOption,
+      //   'always,': always,
+      //   'messageId,': messageId,
+      //   'left,': left,
+      //   'right,': right,
+      //   '!util.isTokenOnSameLine(left, right),': !util.isTokenOnSameLine(left, right),
+      //   'sourceCode.isSpaceBetween!(left, right) === always': sourceCode.isSpaceBetween!(left, right) === always
+      // });
+      return (
+        !util.isTokenOnSameLine(left, right) ||
+        sourceCode.isSpaceBetween!(left, right) === always
+      );
+    }
+
+    /**
+     * Checks and reports invalid spacing style inside braces.
+     * @param {ASTNode} node A BlockStatement/StaticBlock/SwitchStatement node to check.
+     * @returns
+     */
+    function checkSpacingInsideBraces(
+      node: TSESTree.TSInterfaceBody | TSESTree.TSTypeLiteral,
+    ): void {
+      // Gets braces and the first/last token of content.
+      const openBrace = getOpenBrace(node);
+      const closeBrace = sourceCode.getLastToken(node)!;
+      const firstToken = sourceCode.getTokenAfter(openBrace, {
+        includeComments: true,
+      })!;
+      const lastToken = sourceCode.getTokenBefore(closeBrace, {
+        includeComments: true,
+      })!;
+
+      // Skip if the node is invalid or empty.
+      if (
+        openBrace.type !== AST_TOKEN_TYPES.Punctuator ||
+        openBrace.value !== '{' ||
+        closeBrace.type !== AST_TOKEN_TYPES.Punctuator ||
+        closeBrace.value !== '}' ||
+        firstToken === closeBrace
+      ) {
+        return;
+      }
+
+      // Skip line comments for option never
+      if (!always && firstToken.type === AST_TOKEN_TYPES.Line) {
+        return;
+      }
+
+      // Check.
+      if (!isValid(openBrace, firstToken)) {
+        let loc = openBrace.loc;
+
+        if (messageId === 'extra') {
+          loc = {
+            start: openBrace.loc.end,
+            end: firstToken.loc.start,
+          };
+        }
+
+        context.report({
+          node,
+          loc,
+          messageId,
+          data: {
+            location: 'after',
+            token: openBrace.value,
+          },
+          fix(fixer) {
+            if (always) {
+              return fixer.insertTextBefore(firstToken, ' ');
+            }
+
+            return fixer.removeRange([openBrace.range[1], firstToken.range[0]]);
+          },
+        });
+      }
+      if (!isValid(lastToken, closeBrace)) {
+        let loc = closeBrace.loc;
+
+        if (messageId === 'extra') {
+          loc = {
+            start: lastToken.loc.end,
+            end: closeBrace.loc.start,
+          };
+        }
+        context.report({
+          node,
+          loc,
+          messageId,
+          data: {
+            location: 'before',
+            token: closeBrace.value,
+          },
+          fix(fixer) {
+            if (always) {
+              return fixer.insertTextAfter(lastToken, ' ');
+            }
+
+            return fixer.removeRange([lastToken.range[1], closeBrace.range[0]]);
+          },
+        });
+      }
+    }
     return {
       ...baseRules,
-      // TSInterfaceBody(node): void {},
-      // TSTypeLiteral(node): void {},
+      TSInterfaceBody: checkSpacingInsideBraces,
+      TSTypeLiteral: checkSpacingInsideBraces,
 
-      TSInterfaceBody: baseRules.BlockStatement as never,
-      TSTypeLiteral: baseRules.BlockStatement as never,
+      // TSInterfaceBody: baseRules.BlockStatement as never,
+      // TSTypeLiteral: baseRules.BlockStatement as never,
     };
   },
 });

From 0067b46e14ba2d38583fb3c51c886748d16ad558 Mon Sep 17 00:00:00 2001
From: Omri Luzon <omril@testim.io>
Date: Sat, 10 Dec 2022 00:03:51 +0200
Subject: [PATCH 03/18] fixes

---
 .../eslint-plugin/src/rules/block-spacing.ts  | 159 +-----------------
 .../tests/rules/block-spacing.test.ts         |  13 +-
 2 files changed, 12 insertions(+), 160 deletions(-)

diff --git a/packages/eslint-plugin/src/rules/block-spacing.ts b/packages/eslint-plugin/src/rules/block-spacing.ts
index 6d05ea22e3a5..4a4004efed49 100644
--- a/packages/eslint-plugin/src/rules/block-spacing.ts
+++ b/packages/eslint-plugin/src/rules/block-spacing.ts
@@ -1,6 +1,3 @@
-import type { TSESTree } from '@typescript-eslint/utils';
-import { AST_NODE_TYPES, AST_TOKEN_TYPES } from '@typescript-eslint/utils';
-
 import * as util from '../util';
 import { getESLintCoreRule } from '../util/getESLintCoreRule';
 
@@ -25,163 +22,13 @@ export default util.createRule<Options, MessageIds>({
   },
   defaultOptions: ['always'],
 
-  create(context, [whenToApplyOption]) {
-    const sourceCode = context.getSourceCode();
+  create(context) {
     const baseRules = baseRule.create(context);
-    const always = whenToApplyOption !== 'never';
-    const messageId = always ? 'missing' : 'extra';
-    /**
-     * Gets the open brace token from a given node.
-     * @returns The token of the open brace.
-     */
-    function getOpenBrace(
-      node: TSESTree.TSInterfaceBody | TSESTree.TSTypeLiteral,
-    ):
-      | TSESTree.BooleanToken
-      | TSESTree.IdentifierToken
-      | TSESTree.JSXIdentifierToken
-      | TSESTree.JSXTextToken
-      | TSESTree.KeywordToken
-      | TSESTree.NullToken
-      | TSESTree.NumericToken
-      | TSESTree.PunctuatorToken
-      | TSESTree.RegularExpressionToken
-      | TSESTree.StringToken
-      | TSESTree.TemplateToken {
-      if (node.type === AST_NODE_TYPES.TSInterfaceBody) {
-        return sourceCode.getFirstToken(node, { skip: 0 })!;
-      }
-      if (node.type === AST_NODE_TYPES.TSTypeLiteral) {
-        return sourceCode.getFirstToken(node, { skip: 0 })!;
-      }
-
-      return sourceCode.getFirstToken(node)!;
-    }
-
-    /**
-     * Checks whether or not:
-     *   - given tokens are on same line.
-     *   - there is/isn't a space between given tokens.
-     * @param left A token to check.
-     * @param right The token which is next to `left`.
-     * @returns
-     *    When the option is `"always"`, `true` if there are one or more spaces between given tokens.
-     *    When the option is `"never"`, `true` if there are not any spaces between given tokens.
-     *    If given tokens are not on same line, it's always `true`.
-     */
-    function isValid(left: TSESTree.Token, right: TSESTree.Token): boolean {
-      // console.log({
-      //   'sourceCode.text,': sourceCode.text,
-      //   'whenToApplyOption,': whenToApplyOption,
-      //   'always,': always,
-      //   'messageId,': messageId,
-      //   'left,': left,
-      //   'right,': right,
-      //   '!util.isTokenOnSameLine(left, right),': !util.isTokenOnSameLine(left, right),
-      //   'sourceCode.isSpaceBetween!(left, right) === always': sourceCode.isSpaceBetween!(left, right) === always
-      // });
-      return (
-        !util.isTokenOnSameLine(left, right) ||
-        sourceCode.isSpaceBetween!(left, right) === always
-      );
-    }
-
-    /**
-     * Checks and reports invalid spacing style inside braces.
-     * @param {ASTNode} node A BlockStatement/StaticBlock/SwitchStatement node to check.
-     * @returns
-     */
-    function checkSpacingInsideBraces(
-      node: TSESTree.TSInterfaceBody | TSESTree.TSTypeLiteral,
-    ): void {
-      // Gets braces and the first/last token of content.
-      const openBrace = getOpenBrace(node);
-      const closeBrace = sourceCode.getLastToken(node)!;
-      const firstToken = sourceCode.getTokenAfter(openBrace, {
-        includeComments: true,
-      })!;
-      const lastToken = sourceCode.getTokenBefore(closeBrace, {
-        includeComments: true,
-      })!;
-
-      // Skip if the node is invalid or empty.
-      if (
-        openBrace.type !== AST_TOKEN_TYPES.Punctuator ||
-        openBrace.value !== '{' ||
-        closeBrace.type !== AST_TOKEN_TYPES.Punctuator ||
-        closeBrace.value !== '}' ||
-        firstToken === closeBrace
-      ) {
-        return;
-      }
-
-      // Skip line comments for option never
-      if (!always && firstToken.type === AST_TOKEN_TYPES.Line) {
-        return;
-      }
-
-      // Check.
-      if (!isValid(openBrace, firstToken)) {
-        let loc = openBrace.loc;
-
-        if (messageId === 'extra') {
-          loc = {
-            start: openBrace.loc.end,
-            end: firstToken.loc.start,
-          };
-        }
-
-        context.report({
-          node,
-          loc,
-          messageId,
-          data: {
-            location: 'after',
-            token: openBrace.value,
-          },
-          fix(fixer) {
-            if (always) {
-              return fixer.insertTextBefore(firstToken, ' ');
-            }
-
-            return fixer.removeRange([openBrace.range[1], firstToken.range[0]]);
-          },
-        });
-      }
-      if (!isValid(lastToken, closeBrace)) {
-        let loc = closeBrace.loc;
-
-        if (messageId === 'extra') {
-          loc = {
-            start: lastToken.loc.end,
-            end: closeBrace.loc.start,
-          };
-        }
-        context.report({
-          node,
-          loc,
-          messageId,
-          data: {
-            location: 'before',
-            token: closeBrace.value,
-          },
-          fix(fixer) {
-            if (always) {
-              return fixer.insertTextAfter(lastToken, ' ');
-            }
-
-            return fixer.removeRange([lastToken.range[1], closeBrace.range[0]]);
-          },
-        });
-      }
-    }
     return {
       ...baseRules,
-      TSInterfaceBody: checkSpacingInsideBraces,
-      TSTypeLiteral: checkSpacingInsideBraces,
 
-      // TSInterfaceBody: baseRules.BlockStatement as never,
-      // TSTypeLiteral: baseRules.BlockStatement as never,
+      TSInterfaceBody: baseRules.BlockStatement as never,
+      TSTypeLiteral: baseRules.BlockStatement as never,
     };
   },
 });
diff --git a/packages/eslint-plugin/tests/rules/block-spacing.test.ts b/packages/eslint-plugin/tests/rules/block-spacing.test.ts
index 1ab625ea9c33..b2394b5e8148 100644
--- a/packages/eslint-plugin/tests/rules/block-spacing.test.ts
+++ b/packages/eslint-plugin/tests/rules/block-spacing.test.ts
@@ -47,8 +47,14 @@ ruleTester.run('block-spacing', rule, {
   invalid: [
     ...options.flatMap(options =>
       typeDeclaration.flatMap(typeDec =>
-        singlePropertyBlocks.map<InvalidBlockSpacingTestCase>(
+        singlePropertyBlocks.flatMap<InvalidBlockSpacingTestCase>(
           (blockType, blockIndex) => {
+            if (
+              (options[0] === 'always' && blockType.startsWith('{ ')) ||
+              (options[0] === 'never' && blockType.startsWith('{bar'))
+            ) {
+              return [];
+            }
             return {
               code: typeDec.stringPrefix + blockType,
               options,
@@ -59,14 +65,14 @@ ruleTester.run('block-spacing', rule, {
                   type: typeDec.nodeType,
                   // line: 1,
                   // column: 1,
-                  messageId: 'missing',
+                  messageId: options[0] === 'always' ? 'missing' : 'extra',
                   data: { location: 'after', token: '{' },
                 },
                 {
                   type: typeDec.nodeType,
                   // line: 1,
                   // column: 8,
-                  messageId: 'missing',
+                  messageId: options[0] === 'always' ? 'missing' : 'extra',
                   data: { location: 'before', token: '}' },
                 },
               ],
@@ -75,6 +81,5 @@ ruleTester.run('block-spacing', rule, {
         ),
       ),
     ),
-    // .filter(_case => JSON.stringify(_case).includes('type ')),
   ],
 });

From 7e8b5403d0c48b3b7beb6f0a81993ee8c942e636 Mon Sep 17 00:00:00 2001
From: Omri Luzon <omril@testim.io>
Date: Sat, 10 Dec 2022 00:28:50 +0200
Subject: [PATCH 04/18] cleanup

---
 .../tests/rules/block-spacing.test.ts         | 34 +++++++------------
 1 file changed, 13 insertions(+), 21 deletions(-)

diff --git a/packages/eslint-plugin/tests/rules/block-spacing.test.ts b/packages/eslint-plugin/tests/rules/block-spacing.test.ts
index b2394b5e8148..4935f715bea4 100644
--- a/packages/eslint-plugin/tests/rules/block-spacing.test.ts
+++ b/packages/eslint-plugin/tests/rules/block-spacing.test.ts
@@ -1,12 +1,7 @@
-/* eslint-disable eslint-comments/no-use */
-// this rule tests the spacing, which prettier will want to fix and break the tests
-/* eslint "@typescript-eslint/internal/plugin-test-formatting": ["error", { formatWithPrettier: false }] */
-/* eslint-enable eslint-comments/no-use */
-import { AST_NODE_TYPES, TSESLint } from '@typescript-eslint/utils';
+import { AST_NODE_TYPES } from '@typescript-eslint/utils';
 
-import type { MessageIds, Options } from '../../src/rules/block-spacing';
 import rule from '../../src/rules/block-spacing';
-import type { InvalidTestCase } from '../RuleTester';
+import type { InvalidTestCase, ValidTestCase } from '../RuleTester';
 import { RuleTester } from '../RuleTester';
 
 const ruleTester = new RuleTester({
@@ -18,7 +13,7 @@ type InvalidBlockSpacingTestCase = InvalidTestCase<
   ['always' | 'never']
 >;
 
-const options = [['always'], ['never']] as const;
+const options = ['always', 'never'] as const;
 const typeDeclaration = [
   {
     nodeType: AST_NODE_TYPES.TSInterfaceBody,
@@ -35,44 +30,41 @@ const singlePropertyBlocks = ['{bar: true}', '{ bar: true }'];
 ruleTester.run('block-spacing', rule, {
   valid: [
     // Empty blocks don't apply
-    ...options.flatMap(options =>
+    ...options.flatMap(option =>
       typeDeclaration.flatMap(typeDec =>
-        emptyBlocks.map(blockType => ({
+        emptyBlocks.map<ValidTestCase<['always' | 'never']>>(blockType => ({
           code: typeDec.stringPrefix + blockType,
-          options,
+          options: [option],
         })),
       ),
     ),
   ],
   invalid: [
-    ...options.flatMap(options =>
+    ...options.flatMap(option =>
       typeDeclaration.flatMap(typeDec =>
         singlePropertyBlocks.flatMap<InvalidBlockSpacingTestCase>(
           (blockType, blockIndex) => {
+            // These are actually valid, so filter them out
             if (
-              (options[0] === 'always' && blockType.startsWith('{ ')) ||
-              (options[0] === 'never' && blockType.startsWith('{bar'))
+              (option === 'always' && blockType.startsWith('{ ')) ||
+              (option === 'never' && blockType.startsWith('{bar'))
             ) {
               return [];
             }
             return {
               code: typeDec.stringPrefix + blockType,
-              options,
+              options: [option],
               output:
                 typeDec.stringPrefix + singlePropertyBlocks[1 - blockIndex],
               errors: [
                 {
                   type: typeDec.nodeType,
-                  // line: 1,
-                  // column: 1,
-                  messageId: options[0] === 'always' ? 'missing' : 'extra',
+                  messageId: option === 'always' ? 'missing' : 'extra',
                   data: { location: 'after', token: '{' },
                 },
                 {
                   type: typeDec.nodeType,
-                  // line: 1,
-                  // column: 8,
-                  messageId: options[0] === 'always' ? 'missing' : 'extra',
+                  messageId: option === 'always' ? 'missing' : 'extra',
                   data: { location: 'before', token: '}' },
                 },
               ],

From 3cd0d6f96f5ce0725f98e1500f6b54469c74827f Mon Sep 17 00:00:00 2001
From: Omri Luzon <omril@testim.io>
Date: Sat, 10 Dec 2022 00:30:58 +0200
Subject: [PATCH 05/18] with a comment for the option

---
 .../eslint-plugin/tests/rules/block-spacing.test.ts  | 12 +++++++++---
 1 file changed, 9 insertions(+), 3 deletions(-)

diff --git a/packages/eslint-plugin/tests/rules/block-spacing.test.ts b/packages/eslint-plugin/tests/rules/block-spacing.test.ts
index 4935f715bea4..162a3791b473 100644
--- a/packages/eslint-plugin/tests/rules/block-spacing.test.ts
+++ b/packages/eslint-plugin/tests/rules/block-spacing.test.ts
@@ -51,11 +51,17 @@ ruleTester.run('block-spacing', rule, {
             ) {
               return [];
             }
+            const code =
+              typeDec.stringPrefix + blockType + `;  /* ${option} */`;
+            const output =
+              typeDec.stringPrefix +
+              singlePropertyBlocks[1 - blockIndex] +
+              `;  /* ${option} */`;
+
             return {
-              code: typeDec.stringPrefix + blockType,
+              code,
               options: [option],
-              output:
-                typeDec.stringPrefix + singlePropertyBlocks[1 - blockIndex],
+              output,
               errors: [
                 {
                   type: typeDec.nodeType,

From 590d9f893174c03e6d6c3d6a957a24fe61ad82c6 Mon Sep 17 00:00:00 2001
From: Omri Luzon <omril@testim.io>
Date: Sat, 10 Dec 2022 00:49:45 +0200
Subject: [PATCH 06/18] support enums as well

---
 .../eslint-plugin/src/rules/block-spacing.ts  | 133 +++++++++++++++++-
 .../tests/rules/block-spacing.test.ts         |  25 +++-
 2 files changed, 150 insertions(+), 8 deletions(-)

diff --git a/packages/eslint-plugin/src/rules/block-spacing.ts b/packages/eslint-plugin/src/rules/block-spacing.ts
index 4a4004efed49..1a8d074e6d9a 100644
--- a/packages/eslint-plugin/src/rules/block-spacing.ts
+++ b/packages/eslint-plugin/src/rules/block-spacing.ts
@@ -1,3 +1,6 @@
+import type { TSESTree } from '@typescript-eslint/utils';
+import { AST_TOKEN_TYPES } from '@typescript-eslint/utils';
+
 import * as util from '../util';
 import { getESLintCoreRule } from '../util/getESLintCoreRule';
 
@@ -22,13 +25,141 @@ export default util.createRule<Options, MessageIds>({
   },
   defaultOptions: ['always'],
 
-  create(context) {
+  create(context, [whenToApplyOption]) {
+    const sourceCode = context.getSourceCode();
     const baseRules = baseRule.create(context);
+    const always = whenToApplyOption !== 'never';
+    const messageId = always ? 'missing' : 'extra';
+    /**
+     * Gets the open brace token from a given node.
+     * @returns The token of the open brace.
+     */
+    function getOpenBrace(
+      node: TSESTree.TSEnumDeclaration,
+    ): TSESTree.PunctuatorToken {
+      // guaranteed for enums
+      // This is the only change made here from the base rule
+      return sourceCode.getFirstToken(node, {
+        filter: token =>
+          token.type === AST_TOKEN_TYPES.Punctuator && token.value == '{',
+      }) as TSESTree.PunctuatorToken;
+    }
+
+    /**
+     * Checks whether or not:
+     *   - given tokens are on same line.
+     *   - there is/isn't a space between given tokens.
+     * @param left A token to check.
+     * @param right The token which is next to `left`.
+     * @returns
+     *    When the option is `"always"`, `true` if there are one or more spaces between given tokens.
+     *    When the option is `"never"`, `true` if there are not any spaces between given tokens.
+     *    If given tokens are not on same line, it's always `true`.
+     */
+    function isValid(left: TSESTree.Token, right: TSESTree.Token): boolean {
+      return (
+        !util.isTokenOnSameLine(left, right) ||
+        sourceCode.isSpaceBetween!(left, right) === always
+      );
+    }
+
+    /**
+     * Checks and reports invalid spacing style inside braces.
+     * @param {ASTNode} node A BlockStatement/StaticBlock/SwitchStatement node to check.
+     * @returns
+     */
+    function checkSpacingInsideBraces(node: TSESTree.TSEnumDeclaration): void {
+      // Gets braces and the first/last token of content.
+      const openBrace = getOpenBrace(node);
+      const closeBrace = sourceCode.getLastToken(node)!;
+      const firstToken = sourceCode.getTokenAfter(openBrace, {
+        includeComments: true,
+      })!;
+      const lastToken = sourceCode.getTokenBefore(closeBrace, {
+        includeComments: true,
+      })!;
+
+      // Skip if the node is invalid or empty.
+      if (
+        openBrace.type !== AST_TOKEN_TYPES.Punctuator ||
+        openBrace.value !== '{' ||
+        closeBrace.type !== AST_TOKEN_TYPES.Punctuator ||
+        closeBrace.value !== '}' ||
+        firstToken === closeBrace
+      ) {
+        return;
+      }
+
+      // Skip line comments for option never
+      if (!always && firstToken.type === AST_TOKEN_TYPES.Line) {
+        return;
+      }
+
+      // Check.
+      if (!isValid(openBrace, firstToken)) {
+        let loc = openBrace.loc;
+
+        if (messageId === 'extra') {
+          loc = {
+            start: openBrace.loc.end,
+            end: firstToken.loc.start,
+          };
+        }
+
+        context.report({
+          node,
+          loc,
+          messageId,
+          data: {
+            location: 'after',
+            token: openBrace.value,
+          },
+          fix(fixer) {
+            if (always) {
+              return fixer.insertTextBefore(firstToken, ' ');
+            }
+
+            return fixer.removeRange([openBrace.range[1], firstToken.range[0]]);
+          },
+        });
+      }
+      if (!isValid(lastToken, closeBrace)) {
+        let loc = closeBrace.loc;
+
+        if (messageId === 'extra') {
+          loc = {
+            start: lastToken.loc.end,
+            end: closeBrace.loc.start,
+          };
+        }
+        context.report({
+          node,
+          loc,
+          messageId,
+          data: {
+            location: 'before',
+            token: closeBrace.value,
+          },
+          fix(fixer) {
+            if (always) {
+              return fixer.insertTextAfter(lastToken, ' ');
+            }
+
+            return fixer.removeRange([lastToken.range[1], closeBrace.range[0]]);
+          },
+        });
+      }
+    }
     return {
       ...baseRules,
 
+      // This code worked "out of the box" for interface and type literal
+      // Enums were very close to match as well, the only reason they it not is that was that enums don't have a body node in the parser
+      // So the opening brace punctuator starts in the middle of the node
+      // `getFirstToken` in the base rule did not filter for the first opening brace punctuator
       TSInterfaceBody: baseRules.BlockStatement as never,
       TSTypeLiteral: baseRules.BlockStatement as never,
+      TSEnumDeclaration: checkSpacingInsideBraces,
     };
   },
 });
diff --git a/packages/eslint-plugin/tests/rules/block-spacing.test.ts b/packages/eslint-plugin/tests/rules/block-spacing.test.ts
index 162a3791b473..2471939f3726 100644
--- a/packages/eslint-plugin/tests/rules/block-spacing.test.ts
+++ b/packages/eslint-plugin/tests/rules/block-spacing.test.ts
@@ -23,6 +23,14 @@ const typeDeclaration = [
     nodeType: AST_NODE_TYPES.TSTypeLiteral,
     stringPrefix: 'type Foo = ',
   },
+  {
+    nodeType: AST_NODE_TYPES.TSEnumDeclaration,
+    stringPrefix: 'enum Foo ',
+  },
+  {
+    nodeType: AST_NODE_TYPES.TSEnumDeclaration,
+    stringPrefix: 'const enum Foo ',
+  },
 ];
 const emptyBlocks = ['{}', '{ }'];
 const singlePropertyBlocks = ['{bar: true}', '{ bar: true }'];
@@ -41,8 +49,8 @@ ruleTester.run('block-spacing', rule, {
   ],
   invalid: [
     ...options.flatMap(option =>
-      typeDeclaration.flatMap(typeDec =>
-        singlePropertyBlocks.flatMap<InvalidBlockSpacingTestCase>(
+      typeDeclaration.flatMap(typeDec => {
+        return singlePropertyBlocks.flatMap<InvalidBlockSpacingTestCase>(
           (blockType, blockIndex) => {
             // These are actually valid, so filter them out
             if (
@@ -51,12 +59,15 @@ ruleTester.run('block-spacing', rule, {
             ) {
               return [];
             }
-            const code =
-              typeDec.stringPrefix + blockType + `;  /* ${option} */`;
-            const output =
+            let code = typeDec.stringPrefix + blockType + `;  /* ${option} */`;
+            let output =
               typeDec.stringPrefix +
               singlePropertyBlocks[1 - blockIndex] +
               `;  /* ${option} */`;
+            if (typeDec.nodeType === AST_NODE_TYPES.TSEnumDeclaration) {
+              output = output.replace(':', '=');
+              code = code.replace(':', '=');
+            }
 
             return {
               code,
@@ -76,8 +87,8 @@ ruleTester.run('block-spacing', rule, {
               ],
             };
           },
-        ),
-      ),
+        );
+      }),
     ),
   ],
 });

From ab64e29abe3ec0b8483294ea2cf0d5951f1df02a Mon Sep 17 00:00:00 2001
From: Omri Luzon <omril@testim.io>
Date: Sat, 10 Dec 2022 00:53:03 +0200
Subject: [PATCH 07/18] template string

---
 packages/eslint-plugin/tests/rules/block-spacing.test.ts | 8 +++-----
 1 file changed, 3 insertions(+), 5 deletions(-)

diff --git a/packages/eslint-plugin/tests/rules/block-spacing.test.ts b/packages/eslint-plugin/tests/rules/block-spacing.test.ts
index 2471939f3726..c5f4dd223166 100644
--- a/packages/eslint-plugin/tests/rules/block-spacing.test.ts
+++ b/packages/eslint-plugin/tests/rules/block-spacing.test.ts
@@ -59,11 +59,9 @@ ruleTester.run('block-spacing', rule, {
             ) {
               return [];
             }
-            let code = typeDec.stringPrefix + blockType + `;  /* ${option} */`;
-            let output =
-              typeDec.stringPrefix +
-              singlePropertyBlocks[1 - blockIndex] +
-              `;  /* ${option} */`;
+            const reverseBlockType = singlePropertyBlocks[1 - blockIndex];
+            let code = `${typeDec.stringPrefix}${blockType};  /* ${option} */`;
+            let output = `${typeDec.stringPrefix}${reverseBlockType};  /* ${option} */`;
             if (typeDec.nodeType === AST_NODE_TYPES.TSEnumDeclaration) {
               output = output.replace(':', '=');
               code = code.replace(':', '=');

From 65fa0e6f4bd498c90e27505f16f09ad4c3dd685e Mon Sep 17 00:00:00 2001
From: Omri Luzon <omril@testim.io>
Date: Sat, 10 Dec 2022 00:58:57 +0200
Subject: [PATCH 08/18] fix doc

---
 packages/eslint-plugin/docs/rules/block-spacing.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/packages/eslint-plugin/docs/rules/block-spacing.md b/packages/eslint-plugin/docs/rules/block-spacing.md
index 667c8b9bc844..d4e25bafe45d 100644
--- a/packages/eslint-plugin/docs/rules/block-spacing.md
+++ b/packages/eslint-plugin/docs/rules/block-spacing.md
@@ -9,4 +9,4 @@ description: 'Enforce consistent spacing before and after keywords.'
 ## Examples
 
 This rule extends the base [`eslint/block-spacing`](https://eslint.org/docs/rules/block-spacing) rule.
-This version adds support for generic type parameters on function calls.
+This version adds support for typescript related blocks (interfaces, object type literals and enums).

From d38b80e5dd9e830466a64387ca5d0de35057dd9e Mon Sep 17 00:00:00 2001
From: Omri Luzon <omril@testim.io>
Date: Sat, 10 Dec 2022 01:00:21 +0200
Subject: [PATCH 09/18] fix doc

---
 packages/eslint-plugin/src/rules/block-spacing.ts | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/packages/eslint-plugin/src/rules/block-spacing.ts b/packages/eslint-plugin/src/rules/block-spacing.ts
index 1a8d074e6d9a..3224afb8337d 100644
--- a/packages/eslint-plugin/src/rules/block-spacing.ts
+++ b/packages/eslint-plugin/src/rules/block-spacing.ts
@@ -14,7 +14,8 @@ export default util.createRule<Options, MessageIds>({
   meta: {
     type: 'layout',
     docs: {
-      description: 'Enforce consistent spacing before and after keywords',
+      description:
+        'Disallow or enforce spaces inside of blocks after opening block and before closing block',
       recommended: false,
       extendsBaseRule: true,
     },

From dbe273ccf4a5e0ec62b386106845201832ac0937 Mon Sep 17 00:00:00 2001
From: Omri Luzon <omril@testim.io>
Date: Sat, 10 Dec 2022 01:13:46 +0200
Subject: [PATCH 10/18] typescript -> TypeScript

---
 packages/eslint-plugin/docs/rules/block-spacing.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/packages/eslint-plugin/docs/rules/block-spacing.md b/packages/eslint-plugin/docs/rules/block-spacing.md
index d4e25bafe45d..e0d59fd8284f 100644
--- a/packages/eslint-plugin/docs/rules/block-spacing.md
+++ b/packages/eslint-plugin/docs/rules/block-spacing.md
@@ -9,4 +9,4 @@ description: 'Enforce consistent spacing before and after keywords.'
 ## Examples
 
 This rule extends the base [`eslint/block-spacing`](https://eslint.org/docs/rules/block-spacing) rule.
-This version adds support for typescript related blocks (interfaces, object type literals and enums).
+This version adds support for TypeScript related blocks (interfaces, object type literals and enums).

From 2496815c002016966b3b5b857730f0cc1a2a99ab Mon Sep 17 00:00:00 2001
From: Omri Luzon <omril@testim.io>
Date: Sat, 10 Dec 2022 02:10:30 +0200
Subject: [PATCH 11/18] add missing things

---
 packages/eslint-plugin/docs/rules/block-spacing.md | 2 +-
 packages/eslint-plugin/src/configs/all.ts          | 2 ++
 packages/eslint-plugin/src/rules/index.ts          | 2 ++
 3 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/packages/eslint-plugin/docs/rules/block-spacing.md b/packages/eslint-plugin/docs/rules/block-spacing.md
index e0d59fd8284f..6a902214bbb4 100644
--- a/packages/eslint-plugin/docs/rules/block-spacing.md
+++ b/packages/eslint-plugin/docs/rules/block-spacing.md
@@ -1,5 +1,5 @@
 ---
-description: 'Enforce consistent spacing before and after keywords.'
+description: 'Disallow or enforce spaces inside of blocks after opening block and before closing block.'
 ---
 
 > 🛑 This file is source code, not the primary documentation location! 🛑
diff --git a/packages/eslint-plugin/src/configs/all.ts b/packages/eslint-plugin/src/configs/all.ts
index 20ea892f581d..a7e246de2d3c 100644
--- a/packages/eslint-plugin/src/configs/all.ts
+++ b/packages/eslint-plugin/src/configs/all.ts
@@ -11,6 +11,8 @@ export = {
     '@typescript-eslint/ban-ts-comment': 'error',
     '@typescript-eslint/ban-tslint-comment': 'error',
     '@typescript-eslint/ban-types': 'error',
+    'block-spacing': 'off',
+    '@typescript-eslint/block-spacing': 'error',
     'brace-style': 'off',
     '@typescript-eslint/brace-style': 'error',
     '@typescript-eslint/class-literal-property-style': 'error',
diff --git a/packages/eslint-plugin/src/rules/index.ts b/packages/eslint-plugin/src/rules/index.ts
index 8a3c2bbf4371..468c60954a13 100644
--- a/packages/eslint-plugin/src/rules/index.ts
+++ b/packages/eslint-plugin/src/rules/index.ts
@@ -4,6 +4,7 @@ import awaitThenable from './await-thenable';
 import banTsComment from './ban-ts-comment';
 import banTslintComment from './ban-tslint-comment';
 import banTypes from './ban-types';
+import blockSpacing from './block-spacing';
 import braceStyle from './brace-style';
 import classLiteralPropertyStyle from './class-literal-property-style';
 import commaDangle from './comma-dangle';
@@ -135,6 +136,7 @@ export default {
   'ban-ts-comment': banTsComment,
   'ban-tslint-comment': banTslintComment,
   'ban-types': banTypes,
+  'block-spacing': blockSpacing,
   'brace-style': braceStyle,
   'class-literal-property-style': classLiteralPropertyStyle,
   'comma-dangle': commaDangle,

From 21a44faacee36a128ff20433e618170ab1d522a1 Mon Sep 17 00:00:00 2001
From: Omri Luzon <omril@testim.io>
Date: Sat, 17 Dec 2022 01:03:51 +0200
Subject: [PATCH 12/18] CR: remove jsdoc types

---
 packages/eslint-plugin/src/rules/block-spacing.ts | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/packages/eslint-plugin/src/rules/block-spacing.ts b/packages/eslint-plugin/src/rules/block-spacing.ts
index 3224afb8337d..224dec2a119d 100644
--- a/packages/eslint-plugin/src/rules/block-spacing.ts
+++ b/packages/eslint-plugin/src/rules/block-spacing.ts
@@ -66,8 +66,6 @@ export default util.createRule<Options, MessageIds>({
 
     /**
      * Checks and reports invalid spacing style inside braces.
-     * @param {ASTNode} node A BlockStatement/StaticBlock/SwitchStatement node to check.
-     * @returns
      */
     function checkSpacingInsideBraces(node: TSESTree.TSEnumDeclaration): void {
       // Gets braces and the first/last token of content.
@@ -96,7 +94,6 @@ export default util.createRule<Options, MessageIds>({
         return;
       }
 
-      // Check.
       if (!isValid(openBrace, firstToken)) {
         let loc = openBrace.loc;
 

From 82ec70db405a8435919a16429e2df91c5aa897c4 Mon Sep 17 00:00:00 2001
From: Omri Luzon <omril@testim.io>
Date: Sat, 17 Dec 2022 01:18:25 +0200
Subject: [PATCH 13/18] rename typeDeclaration -> typeDeclarations

---
 packages/eslint-plugin/tests/rules/block-spacing.test.ts | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/packages/eslint-plugin/tests/rules/block-spacing.test.ts b/packages/eslint-plugin/tests/rules/block-spacing.test.ts
index c5f4dd223166..9674e91797b8 100644
--- a/packages/eslint-plugin/tests/rules/block-spacing.test.ts
+++ b/packages/eslint-plugin/tests/rules/block-spacing.test.ts
@@ -14,7 +14,7 @@ type InvalidBlockSpacingTestCase = InvalidTestCase<
 >;
 
 const options = ['always', 'never'] as const;
-const typeDeclaration = [
+const typeDeclarations = [
   {
     nodeType: AST_NODE_TYPES.TSInterfaceBody,
     stringPrefix: 'interface Foo ',
@@ -39,7 +39,7 @@ ruleTester.run('block-spacing', rule, {
   valid: [
     // Empty blocks don't apply
     ...options.flatMap(option =>
-      typeDeclaration.flatMap(typeDec =>
+      typeDeclarations.flatMap(typeDec =>
         emptyBlocks.map<ValidTestCase<['always' | 'never']>>(blockType => ({
           code: typeDec.stringPrefix + blockType,
           options: [option],
@@ -49,7 +49,7 @@ ruleTester.run('block-spacing', rule, {
   ],
   invalid: [
     ...options.flatMap(option =>
-      typeDeclaration.flatMap(typeDec => {
+      typeDeclarations.flatMap(typeDec => {
         return singlePropertyBlocks.flatMap<InvalidBlockSpacingTestCase>(
           (blockType, blockIndex) => {
             // These are actually valid, so filter them out

From cef520c561356bc021cfc59ab8be30eb45663d27 Mon Sep 17 00:00:00 2001
From: Omri Luzon <omril@testim.io>
Date: Sat, 17 Dec 2022 01:20:13 +0200
Subject: [PATCH 14/18] more valid cases with comments

---
 .../tests/rules/block-spacing.test.ts         | 22 +++++++++++++++++++
 1 file changed, 22 insertions(+)

diff --git a/packages/eslint-plugin/tests/rules/block-spacing.test.ts b/packages/eslint-plugin/tests/rules/block-spacing.test.ts
index 9674e91797b8..be16269f2a60 100644
--- a/packages/eslint-plugin/tests/rules/block-spacing.test.ts
+++ b/packages/eslint-plugin/tests/rules/block-spacing.test.ts
@@ -46,6 +46,28 @@ ruleTester.run('block-spacing', rule, {
         })),
       ),
     ),
+    ...typeDeclarations.flatMap<ValidTestCase<['always' | 'never']>>(
+      typeDec => {
+        const property =
+          typeDec.nodeType === AST_NODE_TYPES.TSEnumDeclaration
+            ? 'bar = 1'
+            : 'bar: true;';
+        return [
+          {
+            code: `${typeDec.stringPrefix}{ /* comment */ ${property} /* comment */ } // always`,
+            options: ['always'],
+          },
+          {
+            code: `${typeDec.stringPrefix}{/* comment */ ${property} /* comment */} // never`,
+            options: ['never'],
+          },
+          {
+            code: `${typeDec.stringPrefix}{ //comment\n ${property}}`,
+            options: ['never'],
+          },
+        ];
+      },
+    ),
   ],
   invalid: [
     ...options.flatMap(option =>

From 415733a51ad2736d9c869a8e158b493b19af5dbd Mon Sep 17 00:00:00 2001
From: Omri Luzon <omril@testim.io>
Date: Sat, 17 Dec 2022 01:27:49 +0200
Subject: [PATCH 15/18] invalid cases with block comments

---
 .../tests/rules/block-spacing.test.ts         | 44 +++++++++++++++++++
 1 file changed, 44 insertions(+)

diff --git a/packages/eslint-plugin/tests/rules/block-spacing.test.ts b/packages/eslint-plugin/tests/rules/block-spacing.test.ts
index be16269f2a60..64840461adba 100644
--- a/packages/eslint-plugin/tests/rules/block-spacing.test.ts
+++ b/packages/eslint-plugin/tests/rules/block-spacing.test.ts
@@ -110,5 +110,49 @@ ruleTester.run('block-spacing', rule, {
         );
       }),
     ),
+
+    // With block comments
+    ...typeDeclarations.flatMap<InvalidBlockSpacingTestCase>(typeDec => {
+      const property =
+        typeDec.nodeType === AST_NODE_TYPES.TSEnumDeclaration
+          ? 'bar = 1'
+          : 'bar: true;';
+      return [
+        {
+          code: `${typeDec.stringPrefix}{ /* comment */ ${property} /* comment */ }  /* never */`,
+          output: `${typeDec.stringPrefix}{/* comment */ ${property} /* comment */}  /* never */`,
+          options: ['never'],
+          errors: [
+            {
+              type: typeDec.nodeType,
+              messageId: 'extra',
+              data: { location: 'after', token: '{' },
+            },
+            {
+              type: typeDec.nodeType,
+              messageId: 'extra',
+              data: { location: 'before', token: '}' },
+            },
+          ],
+        },
+        {
+          code: `${typeDec.stringPrefix}{/* comment */ ${property} /* comment */}  /* always */`,
+          output: `${typeDec.stringPrefix}{ /* comment */ ${property} /* comment */ }  /* always */`,
+          options: ['always'],
+          errors: [
+            {
+              type: typeDec.nodeType,
+              messageId: 'missing',
+              data: { location: 'after', token: '{' },
+            },
+            {
+              type: typeDec.nodeType,
+              messageId: 'missing',
+              data: { location: 'before', token: '}' },
+            },
+          ],
+        },
+      ];
+    }),
   ],
 });

From 725d8a9bae5181b955145ca08a0334cc6da58e2c Mon Sep 17 00:00:00 2001
From: Omri Luzon <omril@testim.io>
Date: Sat, 17 Dec 2022 01:42:23 +0200
Subject: [PATCH 16/18] more concise

---
 .../tests/rules/block-spacing.test.ts         | 73 ++++++++-----------
 1 file changed, 30 insertions(+), 43 deletions(-)

diff --git a/packages/eslint-plugin/tests/rules/block-spacing.test.ts b/packages/eslint-plugin/tests/rules/block-spacing.test.ts
index 64840461adba..49578b8c0618 100644
--- a/packages/eslint-plugin/tests/rules/block-spacing.test.ts
+++ b/packages/eslint-plugin/tests/rules/block-spacing.test.ts
@@ -34,6 +34,7 @@ const typeDeclarations = [
 ];
 const emptyBlocks = ['{}', '{ }'];
 const singlePropertyBlocks = ['{bar: true}', '{ bar: true }'];
+const blockComment = '/* comment */';
 
 ruleTester.run('block-spacing', rule, {
   valid: [
@@ -110,49 +111,35 @@ ruleTester.run('block-spacing', rule, {
         );
       }),
     ),
-
     // With block comments
-    ...typeDeclarations.flatMap<InvalidBlockSpacingTestCase>(typeDec => {
-      const property =
-        typeDec.nodeType === AST_NODE_TYPES.TSEnumDeclaration
-          ? 'bar = 1'
-          : 'bar: true;';
-      return [
-        {
-          code: `${typeDec.stringPrefix}{ /* comment */ ${property} /* comment */ }  /* never */`,
-          output: `${typeDec.stringPrefix}{/* comment */ ${property} /* comment */}  /* never */`,
-          options: ['never'],
-          errors: [
-            {
-              type: typeDec.nodeType,
-              messageId: 'extra',
-              data: { location: 'after', token: '{' },
-            },
-            {
-              type: typeDec.nodeType,
-              messageId: 'extra',
-              data: { location: 'before', token: '}' },
-            },
-          ],
-        },
-        {
-          code: `${typeDec.stringPrefix}{/* comment */ ${property} /* comment */}  /* always */`,
-          output: `${typeDec.stringPrefix}{ /* comment */ ${property} /* comment */ }  /* always */`,
-          options: ['always'],
-          errors: [
-            {
-              type: typeDec.nodeType,
-              messageId: 'missing',
-              data: { location: 'after', token: '{' },
-            },
-            {
-              type: typeDec.nodeType,
-              messageId: 'missing',
-              data: { location: 'before', token: '}' },
-            },
-          ],
-        },
-      ];
-    }),
+    ...options.flatMap(option =>
+      typeDeclarations.flatMap<InvalidBlockSpacingTestCase>(typeDec => {
+        const property =
+          typeDec.nodeType === AST_NODE_TYPES.TSEnumDeclaration
+            ? 'bar = 1'
+            : 'bar: true;';
+        const alwaysSpace = option === 'always' ? '' : ' ';
+        const neverSpace = option === 'always' ? ' ' : '';
+        return [
+          {
+            code: `${typeDec.stringPrefix}{${alwaysSpace}${blockComment}${property}${blockComment}${alwaysSpace}}  /* ${option} */`,
+            output: `${typeDec.stringPrefix}{${neverSpace}${blockComment}${property}${blockComment}${neverSpace}}  /* ${option} */`,
+            options: [option],
+            errors: [
+              {
+                type: typeDec.nodeType,
+                messageId: option === 'always' ? 'missing' : 'extra',
+                data: { location: 'after', token: '{' },
+              },
+              {
+                type: typeDec.nodeType,
+                messageId: option === 'always' ? 'missing' : 'extra',
+                data: { location: 'before', token: '}' },
+              },
+            ],
+          },
+        ];
+      }),
+    ),
   ],
 });

From 6fd6ffbc4cca5b388c8408439300c86caef957c4 Mon Sep 17 00:00:00 2001
From: Omri Luzon <omril@testim.io>
Date: Thu, 22 Dec 2022 07:14:48 +0200
Subject: [PATCH 17/18] fix comment

---
 packages/eslint-plugin/src/rules/block-spacing.ts | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/packages/eslint-plugin/src/rules/block-spacing.ts b/packages/eslint-plugin/src/rules/block-spacing.ts
index 224dec2a119d..45e6eb2bfd5e 100644
--- a/packages/eslint-plugin/src/rules/block-spacing.ts
+++ b/packages/eslint-plugin/src/rules/block-spacing.ts
@@ -152,9 +152,9 @@ export default util.createRule<Options, MessageIds>({
       ...baseRules,
 
       // This code worked "out of the box" for interface and type literal
-      // Enums were very close to match as well, the only reason they it not is that was that enums don't have a body node in the parser
-      // So the opening brace punctuator starts in the middle of the node
-      // `getFirstToken` in the base rule did not filter for the first opening brace punctuator
+      // Enums were very close to match as well, the only reason they are not is that was that enums don't have a body node in the parser
+      // So the opening brace punctuator starts in the middle of the node - `getFirstToken` in
+      // the base rule did not filter for the first opening brace punctuator
       TSInterfaceBody: baseRules.BlockStatement as never,
       TSTypeLiteral: baseRules.BlockStatement as never,
       TSEnumDeclaration: checkSpacingInsideBraces,

From b6b1140b3ff246a1d8c3dbb233be67c5b43820b8 Mon Sep 17 00:00:00 2001
From: Omri Luzon <omril@testim.io>
Date: Tue, 7 Feb 2023 22:15:42 +0200
Subject: [PATCH 18/18] fix lint error

---
 packages/eslint-plugin/src/rules/block-spacing.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/packages/eslint-plugin/src/rules/block-spacing.ts b/packages/eslint-plugin/src/rules/block-spacing.ts
index 45e6eb2bfd5e..745132978f77 100644
--- a/packages/eslint-plugin/src/rules/block-spacing.ts
+++ b/packages/eslint-plugin/src/rules/block-spacing.ts
@@ -42,7 +42,7 @@ export default util.createRule<Options, MessageIds>({
       // This is the only change made here from the base rule
       return sourceCode.getFirstToken(node, {
         filter: token =>
-          token.type === AST_TOKEN_TYPES.Punctuator && token.value == '{',
+          token.type === AST_TOKEN_TYPES.Punctuator && token.value === '{',
       }) as TSESTree.PunctuatorToken;
     }
 

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