add action for enabling experimentalDescorators option in user config…

src/compiler/checker.ts

@@ -25347,7 +25347,7 @@ namespace ts {
             }
 
             if (!compilerOptions.experimentalDecorators) {
-                error(node, Diagnostics.Experimental_support_for_decorators_is_a_feature_that_is_subject_to_change_in_a_future_release_Set_the_experimentalDecorators_option_to_remove_this_warning);
+                error(node, Diagnostics.Experimental_support_for_decorators_is_a_feature_that_is_subject_to_change_in_a_future_release_Set_the_experimentalDecorators_option_in_your_tsconfig_or_jsconfig_to_remove_this_warning);
             }
 
             const firstDecorator = node.decorators[0];

src/compiler/diagnosticMessages.json

@@ -691,7 +691,7 @@
         "category": "Error",
         "code": 1218
     },
-    "Experimental support for decorators is a feature that is subject to change in a future release. Set the 'experimentalDecorators' option to remove this warning.": {
+    "Experimental support for decorators is a feature that is subject to change in a future release. Set the 'experimentalDecorators' option in your 'tsconfig' or 'jsconfig' to remove this warning.": {
         "category": "Error",
         "code": 1219
     },

src/compiler/program.ts

@@ -1815,7 +1815,7 @@ namespace ts {
 
                 function walkArray(nodes: NodeArray<Node>) {
                     if (parent.decorators === nodes && !options.experimentalDecorators) {
-                        diagnostics.push(createDiagnosticForNode(parent, Diagnostics.Experimental_support_for_decorators_is_a_feature_that_is_subject_to_change_in_a_future_release_Set_the_experimentalDecorators_option_to_remove_this_warning));
+                        diagnostics.push(createDiagnosticForNode(parent, Diagnostics.Experimental_support_for_decorators_is_a_feature_that_is_subject_to_change_in_a_future_release_Set_the_experimentalDecorators_option_in_your_tsconfig_or_jsconfig_to_remove_this_warning));
                     }
 
                     switch (parent.kind) {

src/services/codefixes/fixEnableExperimentalDecorators.ts

@@ -2,7 +2,7 @@
 namespace ts.codefix {
     const fixId = "enableExperimentalDecorators";
     const errorCodes = [
-        Diagnostics.Experimental_support_for_decorators_is_a_feature_that_is_subject_to_change_in_a_future_release_Set_the_experimentalDecorators_option_to_remove_this_warning.code
+        Diagnostics.Experimental_support_for_decorators_is_a_feature_that_is_subject_to_change_in_a_future_release_Set_the_experimentalDecorators_option_in_your_tsconfig_or_jsconfig_to_remove_this_warning.code
     ];
     registerCodeFix({
         errorCodes,
@@ -12,13 +12,20 @@ namespace ts.codefix {
                 return undefined;
             }
 
-            const changes = textChanges.ChangeTracker.with(context, changeTracker => makeChange(changeTracker, configFile));
+            const changes = textChanges.ChangeTracker.with(context, changeTracker => doChange(changeTracker, configFile));
             return [createCodeFixActionNoFixId(fixId, changes, Diagnostics.Enable_the_experimentalDecorators_option_in_your_configuration_file)];
         },
         fixIds: [fixId],
+        getAllCodeActions: context => codeFixAll(context, errorCodes, (changes) => {
+            const { configFile } = context.program.getCompilerOptions();
+            if (configFile === undefined) {
+                return undefined;
+            }
+            doChange(changes, configFile);
+        }),
     });
 
-    function makeChange(changeTracker: textChanges.ChangeTracker, configFile: TsConfigSourceFile) {
+    function doChange(changeTracker: textChanges.ChangeTracker, configFile: TsConfigSourceFile) {
         setJsonCompilerOptionValue(changeTracker, configFile, "experimentalDecorators", createTrue());
     }
 }

tests/baselines/reference/decoratorInJsFile1.errors.txt

@@ -1,12 +1,12 @@
-tests/cases/compiler/a.js(2,7): error TS1219: Experimental support for decorators is a feature that is subject to change in a future release. Set the 'experimentalDecorators' option to remove this warning.
+tests/cases/compiler/a.js(2,7): error TS1219: Experimental support for decorators is a feature that is subject to change in a future release. Set the 'experimentalDecorators' option in your 'tsconfig' or 'jsconfig' to remove this warning.
 tests/cases/compiler/a.js(3,12): error TS8010: 'types' can only be used in a .ts file.
 
 
 ==== tests/cases/compiler/a.js (2 errors) ====
     @SomeDecorator
     class SomeClass {
           ~~~~~~~~~
-!!! error TS1219: Experimental support for decorators is a feature that is subject to change in a future release. Set the 'experimentalDecorators' option to remove this warning.
+!!! error TS1219: Experimental support for decorators is a feature that is subject to change in a future release. Set the 'experimentalDecorators' option in your 'tsconfig' or 'jsconfig' to remove this warning.
         foo(x: number) {
                ~~~~~~
 !!! error TS8010: 'types' can only be used in a .ts file.

tests/baselines/reference/generatorTypeCheck39.errors.txt

@@ -1,5 +1,5 @@
 tests/cases/conformance/es6/yieldExpressions/generatorTypeCheck39.ts(5,16): error TS1163: A 'yield' expression is only allowed in a generator body.
-tests/cases/conformance/es6/yieldExpressions/generatorTypeCheck39.ts(6,11): error TS1219: Experimental support for decorators is a feature that is subject to change in a future release. Set the 'experimentalDecorators' option to remove this warning.
+tests/cases/conformance/es6/yieldExpressions/generatorTypeCheck39.ts(6,11): error TS1219: Experimental support for decorators is a feature that is subject to change in a future release. Set the 'experimentalDecorators' option in your 'tsconfig' or 'jsconfig' to remove this warning.
 tests/cases/conformance/es6/yieldExpressions/generatorTypeCheck39.ts(7,13): error TS1163: A 'yield' expression is only allowed in a generator body.
 
 
@@ -13,7 +13,7 @@ tests/cases/conformance/es6/yieldExpressions/generatorTypeCheck39.ts(7,13): erro
 !!! error TS1163: A 'yield' expression is only allowed in a generator body.
         class C {
               ~
-!!! error TS1219: Experimental support for decorators is a feature that is subject to change in a future release. Set the 'experimentalDecorators' option to remove this warning.
+!!! error TS1219: Experimental support for decorators is a feature that is subject to change in a future release. Set the 'experimentalDecorators' option in your 'tsconfig' or 'jsconfig' to remove this warning.
             x = yield 0;
                 ~~~~~
 !!! error TS1163: A 'yield' expression is only allowed in a generator body.

tests/baselines/reference/generatorTypeCheck59.errors.txt

@@ -1,5 +1,5 @@
 tests/cases/conformance/es6/yieldExpressions/generatorTypeCheck59.ts(3,11): error TS1163: A 'yield' expression is only allowed in a generator body.
-tests/cases/conformance/es6/yieldExpressions/generatorTypeCheck59.ts(4,9): error TS1219: Experimental support for decorators is a feature that is subject to change in a future release. Set the 'experimentalDecorators' option to remove this warning.
+tests/cases/conformance/es6/yieldExpressions/generatorTypeCheck59.ts(4,9): error TS1219: Experimental support for decorators is a feature that is subject to change in a future release. Set the 'experimentalDecorators' option in your 'tsconfig' or 'jsconfig' to remove this warning.
 
 
 ==== tests/cases/conformance/es6/yieldExpressions/generatorTypeCheck59.ts (2 errors) ====
@@ -10,6 +10,6 @@ tests/cases/conformance/es6/yieldExpressions/generatorTypeCheck59.ts(4,9): error
 !!! error TS1163: A 'yield' expression is only allowed in a generator body.
             m() { }
             ~
-!!! error TS1219: Experimental support for decorators is a feature that is subject to change in a future release. Set the 'experimentalDecorators' option to remove this warning.
+!!! error TS1219: Experimental support for decorators is a feature that is subject to change in a future release. Set the 'experimentalDecorators' option in your 'tsconfig' or 'jsconfig' to remove this warning.
         };
     }

tests/baselines/reference/generatorTypeCheck61.errors.txt

@@ -1,5 +1,5 @@
 tests/cases/conformance/es6/yieldExpressions/generatorTypeCheck61.ts(2,7): error TS1163: A 'yield' expression is only allowed in a generator body.
-tests/cases/conformance/es6/yieldExpressions/generatorTypeCheck61.ts(3,11): error TS1219: Experimental support for decorators is a feature that is subject to change in a future release. Set the 'experimentalDecorators' option to remove this warning.
+tests/cases/conformance/es6/yieldExpressions/generatorTypeCheck61.ts(3,11): error TS1219: Experimental support for decorators is a feature that is subject to change in a future release. Set the 'experimentalDecorators' option in your 'tsconfig' or 'jsconfig' to remove this warning.
 
 
 ==== tests/cases/conformance/es6/yieldExpressions/generatorTypeCheck61.ts (2 errors) ====
@@ -9,5 +9,5 @@ tests/cases/conformance/es6/yieldExpressions/generatorTypeCheck61.ts(3,11): erro
 !!! error TS1163: A 'yield' expression is only allowed in a generator body.
         class C {};
               ~
-!!! error TS1219: Experimental support for decorators is a feature that is subject to change in a future release. Set the 'experimentalDecorators' option to remove this warning.
+!!! error TS1219: Experimental support for decorators is a feature that is subject to change in a future release. Set the 'experimentalDecorators' option in your 'tsconfig' or 'jsconfig' to remove this warning.
     }

tests/cases/fourslash/codefixEnableExperimentalDecorators_blankCompilerOptionsInJsconfig.ts

@@ -0,0 +1,26 @@
+/// <reference path='fourslash.ts' />
+
+// @Filename: /dir/a.ts
+////declare const decorator: any;
+////class A {
+//// @decorator method() {};
+////};
+
+// @Filename: /dir/jsconfig.json
+////{
+////    "compilerOptions": {
+////    }
+////}
+
+goTo.file("/dir/a.ts");
+verify.codeFix({
+    description: "Enable the 'experimentalDecorators' option in your configuration file",
+    newFileContent: {
+        "/dir/jsconfig.json":
+`{
+    "compilerOptions": {
+        "experimentalDecorators": true,
+    }
+}`,
+    },
+});

tests/cases/fourslash/codefixEnableExperimentalDecorators_disabledInCompilerOptionsInJsconfig.ts

@@ -0,0 +1,27 @@
+/// <reference path='fourslash.ts' />
+
+// @Filename: /dir/a.ts
+////declare const decorator: any;
+////class A {
+//// @decorator method() {};
+////};
+
+// @Filename: /dir/jsconfig.json
+////{
+////    "compilerOptions": {
+////        "experimentalDecorators": false,
+////    }
+////}
+
+goTo.file("/dir/a.ts");
+verify.codeFix({
+    description: "Enable the 'experimentalDecorators' option in your configuration file",
+    newFileContent: {
+        "/dir/jsconfig.json":
+`{
+    "compilerOptions": {
+        "experimentalDecorators": true,
+    }
+}`,
+    },
+});

tests/cases/fourslash/codefixEnableExperimentalDecorators_missingCompilerOptionsInJsconfig.ts

@@ -0,0 +1,22 @@
+/// <reference path='fourslash.ts' />
+
+// @Filename: /dir/a.ts
+////declare const decorator: any;
+////class A {
+//// @decorator method() {};
+////};
+
+// @Filename: /dir/jsconfig.json
+////{
+////}
+
+goTo.file("/dir/a.ts");
+verify.codeFix({
+    description: "Enable the 'experimentalDecorators' option in your configuration file",
+    newFileContent: {
+        "/dir/jsconfig.json":
+`{
+    "compilerOptions": { "experimentalDecorators": true },
+}`,
+    },
+});