[tsconfig] Update for TypeScript 5.8 (#4503)

andrewbranch · pre-commit-ci[bot] · web-flow · commit 71c558b08921 · 2025-03-06T00:47:44.000-08:00
* [tsconfig] Update for TypeScript 5.8 * [pre-commit.ci] auto fixes from pre-commit.com hooks for more information, see https://pre-commit.ci * Add `rewriteRelativeImportExtensions` * [pre-commit.ci] auto fixes from pre-commit.com hooks for more information, see https://pre-commit.ci --------- Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>
diff --git a/src/schemas/json/jsconfig.json b/src/schemas/json/jsconfig.json
@@ -291,6 +291,12 @@
               "type": ["boolean", "null"],
               "markdownDescription": "Enforces using indexed accessors for keys declared using an indexed type\n\nSee more: https://www.typescriptlang.org/tsconfig#noPropertyAccessFromIndexSignature"
             },
+            "erasableSyntaxOnly": {
+              "description": "Do not allow runtime constructs that are not part of ECMAScript.",
+              "type": ["boolean", "null"],
+              "default": false,
+              "markdownDescription": "Do not allow runtime constructs that are not part of ECMAScript.\n\nSee more: https://www.typescriptlang.org/tsconfig#erasableSyntaxOnly"
+            },
             "emitBOM": {
               "$comment": "The value of 'null' is UNDOCUMENTED (https://github.com/microsoft/TypeScript/pull/18058).",
               "description": "Emit a UTF-8 Byte Order Mark (BOM) in the beginning of output files.",
@@ -406,12 +412,13 @@
                     "None",
                     "ES2022",
                     "Node16",
+                    "Node18",
                     "NodeNext",
                     "Preserve"
                   ]
                 },
                 {
-                  "pattern": "^([Cc][Oo][Mm][Mm][Oo][Nn][Jj][Ss]|[AaUu][Mm][Dd]|[Ss][Yy][Ss][Tt][Ee][Mm]|[Ee][Ss]([356]|20(1[567]|2[02])|[Nn][Ee][Xx][Tt])|[Nn][Oo][dD][Ee]16|[Nn][Oo][Dd][Ee][Nn][Ee][Xx][Tt]|[Nn][Oo][Nn][Ee]|[Pp][Rr][Ee][Ss][Ee][Rr][Vv][Ee])$"
+                  "pattern": "^([Cc][Oo][Mm][Mm][Oo][Nn][Jj][Ss]|[AaUu][Mm][Dd]|[Ss][Yy][Ss][Tt][Ee][Mm]|[Ee][Ss]([356]|20(1[567]|2[02])|[Nn][Ee][Xx][Tt])|[Nn][Oo][dD][Ee]1[68]|[Nn][Oo][Dd][Ee][Nn][Ee][Xx][Tt]|[Nn][Oo][Nn][Ee]|[Pp][Rr][Ee][Ss][Ee][Rr][Vv][Ee])$"
                 }
               ],
               "markdownDescription": "Specify what module code is generated.\n\nSee more: https://www.typescriptlang.org/tsconfig#module"
@@ -594,6 +601,12 @@
               "default": false,
               "markdownDescription": "Disable emitting comments.\n\nSee more: https://www.typescriptlang.org/tsconfig#removeComments"
             },
+            "rewriteRelativeImportExtensions": {
+              "description": "Rewrite '.ts', '.tsx', '.mts', and '.cts' file extensions in relative import paths to their JavaScript equivalent in output files.",
+              "type": ["boolean", "null"],
+              "default": false,
+              "markdownDescription": "Rewrite '.ts', '.tsx', '.mts', and '.cts' file extensions in relative import paths to their JavaScript equivalent in output files.\n\nSee more: https://www.typescriptlang.org/tsconfig#rewriteRelativeImportExtensions"
+            },
             "rootDir": {
               "$comment": "The value of 'null' is UNDOCUMENTED (https://github.com/microsoft/TypeScript/pull/18058).",
               "description": "Specify the root folder within your source files.",
@@ -1052,6 +1065,12 @@
               },
               "markdownDescription": "Specify a set of bundled library declaration files that describe the target runtime environment.\n\nSee more: https://www.typescriptlang.org/tsconfig#lib"
             },
+            "libReplacement": {
+              "description": "Enable lib replacement.",
+              "type": ["boolean", "null"],
+              "default": true,
+              "markdownDescription": "Enable lib replacement.\n\nSee more: https://www.typescriptlang.org/tsconfig#libReplacement"
+            },
             "strictNullChecks": {
               "$comment": "The value of 'null' is UNDOCUMENTED (https://github.com/microsoft/TypeScript/pull/18058).",
               "description": "When type checking, take into account `null` and `undefined`.",
diff --git a/src/schemas/json/tsconfig.json b/src/schemas/json/tsconfig.json
@@ -308,6 +308,12 @@
               "default": false,
               "markdownDescription": "Only output d.ts files and not JavaScript files.\n\nSee more: https://www.typescriptlang.org/tsconfig#emitDeclarationOnly"
             },
+            "erasableSyntaxOnly": {
+              "description": "Do not allow runtime constructs that are not part of ECMAScript.",
+              "type": ["boolean", "null"],
+              "default": false,
+              "markdownDescription": "Do not allow runtime constructs that are not part of ECMAScript.\n\nSee more: https://www.typescriptlang.org/tsconfig#erasableSyntaxOnly"
+            },
             "exactOptionalPropertyTypes": {
               "$comment": "The value of 'null' is UNDOCUMENTED (https://github.com/microsoft/TypeScript/pull/18058).",
               "description": "Differentiate between undefined and not present when type checking",
@@ -409,12 +415,13 @@
                     "None",
                     "ES2022",
                     "Node16",
+                    "Node18",
                     "NodeNext",
                     "Preserve"
                   ]
                 },
                 {
-                  "pattern": "^([Cc][Oo][Mm][Mm][Oo][Nn][Jj][Ss]|[AaUu][Mm][Dd]|[Ss][Yy][Ss][Tt][Ee][Mm]|[Ee][Ss]([356]|20(1[567]|2[02])|[Nn][Ee][Xx][Tt])|[Nn][Oo][dD][Ee]16|[Nn][Oo][Dd][Ee][Nn][Ee][Xx][Tt]|[Nn][Oo][Nn][Ee]|[Pp][Rr][Ee][Ss][Ee][Rr][Vv][Ee])$"
+                  "pattern": "^([Cc][Oo][Mm][Mm][Oo][Nn][Jj][Ss]|[AaUu][Mm][Dd]|[Ss][Yy][Ss][Tt][Ee][Mm]|[Ee][Ss]([356]|20(1[567]|2[02])|[Nn][Ee][Xx][Tt])|[Nn][Oo][dD][Ee]1[68]|[Nn][Oo][Dd][Ee][Nn][Ee][Xx][Tt]|[Nn][Oo][Nn][Ee]|[Pp][Rr][Ee][Ss][Ee][Rr][Vv][Ee])$"
                 }
               ],
               "markdownDescription": "Specify what module code is generated.\n\nSee more: https://www.typescriptlang.org/tsconfig#module"
@@ -598,6 +605,12 @@
               "default": false,
               "markdownDescription": "Disable emitting comments.\n\nSee more: https://www.typescriptlang.org/tsconfig#removeComments"
             },
+            "rewriteRelativeImportExtensions": {
+              "description": "Rewrite '.ts', '.tsx', '.mts', and '.cts' file extensions in relative import paths to their JavaScript equivalent in output files.",
+              "type": ["boolean", "null"],
+              "default": false,
+              "markdownDescription": "Rewrite '.ts', '.tsx', '.mts', and '.cts' file extensions in relative import paths to their JavaScript equivalent in output files.\n\nSee more: https://www.typescriptlang.org/tsconfig#rewriteRelativeImportExtensions"
+            },
             "rootDir": {
               "$comment": "The value of 'null' is UNDOCUMENTED (https://github.com/microsoft/TypeScript/pull/18058).",
               "description": "Specify the root folder within your source files.",
@@ -1056,6 +1069,12 @@
               },
               "markdownDescription": "Specify a set of bundled library declaration files that describe the target runtime environment.\n\nSee more: https://www.typescriptlang.org/tsconfig#lib"
             },
+            "libReplacement": {
+              "description": "Enable lib replacement.",
+              "type": ["boolean", "null"],
+              "default": true,
+              "markdownDescription": "Enable lib replacement.\n\nSee more: https://www.typescriptlang.org/tsconfig#libReplacement"
+            },
             "moduleDetection": {
               "description": "Specify how TypeScript determine a file as module.",
               "enum": ["auto", "legacy", "force"]
diff --git a/src/test/jsconfig/jsconfig-typescript5.8.json b/src/test/jsconfig/jsconfig-typescript5.8.json
@@ -0,0 +1,7 @@
+{
+  "compilerOptions": {
+    "erasableSyntaxOnly": true,
+    "libReplacement": true,
+    "module": "node18"
+  }
+}
diff --git a/src/test/tsconfig/tsconfig-typescript5.7.json b/src/test/tsconfig/tsconfig-typescript5.7.json
@@ -11,6 +11,7 @@
       "es2024.sharedmemory",
       "es2024.string"
     ],
+    "rewriteRelativeImportExtensions": true,
     "target": "es2024"
   }
 }
diff --git a/src/test/tsconfig/tsconfig-typescript5.8.json b/src/test/tsconfig/tsconfig-typescript5.8.json
@@ -0,0 +1,7 @@
+{
+  "compilerOptions": {
+    "erasableSyntaxOnly": true,
+    "libReplacement": true,
+    "module": "node18"
+  }
+}

Original file line number	Diff line number	Diff line change
`@@ -11,6 +11,7 @@`
`11`	`11`	`"es2024.sharedmemory",`
`12`	`12`	`"es2024.string"`
`13`	`13`	`],`
	`14`	`+ "rewriteRelativeImportExtensions": true,`
`14`	`15`	`"target": "es2024"`
`15`	`16`	`}`
`16`	`17`	`}`