Merge branch 'fix-es5-export-class-name-object' of https://github.com/Kingwl/TypeScript into Kingwl-fix-es5-export-class-name-object

Author: mhegazy

src/compiler/checker.ts

@@ -24153,6 +24153,16 @@ namespace ts {
             }
         }
 
+        /**
+         * The name cannot be used as 'Object' of user defined types with special target.
+         */
+        function checkClassNameCollisionWithObject(name: Identifier): void {
+            if (languageVersion === ScriptTarget.ES5 && name.escapedText === "Object"
+                && moduleKind !== ModuleKind.ES2015 && moduleKind !== ModuleKind.ESNext) {
+                error(name, Diagnostics.Class_name_cannot_be_Object_when_targeting_ES5_with_module_0, ModuleKind[moduleKind]); // https://github.com/Microsoft/TypeScript/issues/17494
+            }
+        }
+
         /**
          * Check each type parameter and check that type parameters have no duplicate type parameter declarations
          */
@@ -24279,6 +24289,9 @@ namespace ts {
                 checkTypeNameIsReserved(node.name, Diagnostics.Class_name_cannot_be_0);
                 checkCollisionWithRequireExportsInGeneratedCode(node, node.name);
                 checkCollisionWithGlobalPromiseInGeneratedCode(node, node.name);
+                if (!(node.flags & NodeFlags.Ambient)) {
+                    checkClassNameCollisionWithObject(node.name);
+                }
             }
             checkTypeParameters(getEffectiveTypeParameterDeclarations(node));
             checkExportsOnMergedDeclarations(node);

src/compiler/diagnosticMessages.json

@@ -2357,6 +2357,11 @@
         "category": "Error",
         "code": 2724
     },
+    "Class name cannot be 'Object' when targeting ES5 with module {0}.": {
+        "category": "Error",
+        "code": 2725
+    },
+
     "Import declaration '{0}' is using private name '{1}'.": {
         "category": "Error",
         "code": 4000

tests/baselines/reference/es6modulekindExportClassNameWithObject.js

@@ -0,0 +1,11 @@
+//// [es6modulekindExportClassNameWithObject.ts]
+export class Object {}
+
+
+//// [es6modulekindExportClassNameWithObject.js]
+var Object = /** @class */ (function () {
+    function Object() {
+    }
+    return Object;
+}());
+export { Object };

tests/baselines/reference/es6modulekindExportClassNameWithObject.symbols

@@ -0,0 +1,4 @@
+=== tests/cases/conformance/externalModules/es6/es6modulekindExportClassNameWithObject.ts ===
+export class Object {}
+>Object : Symbol(Object, Decl(es6modulekindExportClassNameWithObject.ts, 0, 0))
+

tests/baselines/reference/es6modulekindExportClassNameWithObject.types

@@ -0,0 +1,4 @@
+=== tests/cases/conformance/externalModules/es6/es6modulekindExportClassNameWithObject.ts ===
+export class Object {}
+>Object : Object
+

tests/baselines/reference/exnextmodulekindExportClassNameWithObject.js

@@ -0,0 +1,11 @@
+//// [exnextmodulekindExportClassNameWithObject.ts]
+export class Object {}
+
+
+//// [exnextmodulekindExportClassNameWithObject.js]
+var Object = /** @class */ (function () {
+    function Object() {
+    }
+    return Object;
+}());
+export { Object };

tests/baselines/reference/exnextmodulekindExportClassNameWithObject.symbols

@@ -0,0 +1,4 @@
+=== tests/cases/conformance/externalModules/esnext/exnextmodulekindExportClassNameWithObject.ts ===
+export class Object {}
+>Object : Symbol(Object, Decl(exnextmodulekindExportClassNameWithObject.ts, 0, 0))
+

tests/baselines/reference/exnextmodulekindExportClassNameWithObject.types

@@ -0,0 +1,4 @@
+=== tests/cases/conformance/externalModules/esnext/exnextmodulekindExportClassNameWithObject.ts ===
+export class Object {}
+>Object : Object
+

tests/baselines/reference/exportAmbientClassNameWithObject.js

@@ -0,0 +1,7 @@
+//// [exportAmbientClassNameWithObject.ts]
+export declare class Object {}
+
+
+//// [exportAmbientClassNameWithObject.js]
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });

tests/baselines/reference/exportAmbientClassNameWithObject.symbols

@@ -0,0 +1,4 @@
+=== tests/cases/conformance/externalModules/exportAmbientClassNameWithObject.ts ===
+export declare class Object {}
+>Object : Symbol(Object, Decl(exportAmbientClassNameWithObject.ts, 0, 0))
+

tests/baselines/reference/exportAmbientClassNameWithObject.types

@@ -0,0 +1,4 @@
+=== tests/cases/conformance/externalModules/exportAmbientClassNameWithObject.ts ===
+export declare class Object {}
+>Object : Object
+

tests/baselines/reference/exportClassNameWithObjectAMD.errors.txt

@@ -0,0 +1,8 @@
+tests/cases/conformance/externalModules/exportClassNameWithObjectAMD.ts(1,14): error TS2725: Class name cannot be 'Object' when targeting ES5 with module AMD.
+
+
+==== tests/cases/conformance/externalModules/exportClassNameWithObjectAMD.ts (1 errors) ====
+    export class Object {}
+                 ~~~~~~
+!!! error TS2725: Class name cannot be 'Object' when targeting ES5 with module AMD.
+    

tests/baselines/reference/exportClassNameWithObjectAMD.js

@@ -0,0 +1,15 @@
+//// [exportClassNameWithObjectAMD.ts]
+export class Object {}
+
+
+//// [exportClassNameWithObjectAMD.js]
+define(["require", "exports"], function (require, exports) {
+    "use strict";
+    Object.defineProperty(exports, "__esModule", { value: true });
+    var Object = /** @class */ (function () {
+        function Object() {
+        }
+        return Object;
+    }());
+    exports.Object = Object;
+});

tests/baselines/reference/exportClassNameWithObjectAMD.symbols

@@ -0,0 +1,4 @@
+=== tests/cases/conformance/externalModules/exportClassNameWithObjectAMD.ts ===
+export class Object {}
+>Object : Symbol(Object, Decl(exportClassNameWithObjectAMD.ts, 0, 0))
+

tests/baselines/reference/exportClassNameWithObjectAMD.types

@@ -0,0 +1,4 @@
+=== tests/cases/conformance/externalModules/exportClassNameWithObjectAMD.ts ===
+export class Object {}
+>Object : Object
+

tests/baselines/reference/exportClassNameWithObjectCommonJS.errors.txt

@@ -0,0 +1,8 @@
+tests/cases/conformance/externalModules/exportClassNameWithObjectCommonJS.ts(1,14): error TS2725: Class name cannot be 'Object' when targeting ES5 with module CommonJS.
+
+
+==== tests/cases/conformance/externalModules/exportClassNameWithObjectCommonJS.ts (1 errors) ====
+    export class Object {}
+                 ~~~~~~
+!!! error TS2725: Class name cannot be 'Object' when targeting ES5 with module CommonJS.
+    

tests/baselines/reference/exportClassNameWithObjectCommonJS.js

@@ -0,0 +1,13 @@
+//// [exportClassNameWithObjectCommonJS.ts]
+export class Object {}
+
+
+//// [exportClassNameWithObjectCommonJS.js]
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+var Object = /** @class */ (function () {
+    function Object() {
+    }
+    return Object;
+}());
+exports.Object = Object;

tests/baselines/reference/exportClassNameWithObjectCommonJS.symbols

@@ -0,0 +1,4 @@
+=== tests/cases/conformance/externalModules/exportClassNameWithObjectCommonJS.ts ===
+export class Object {}
+>Object : Symbol(Object, Decl(exportClassNameWithObjectCommonJS.ts, 0, 0))
+

tests/baselines/reference/exportClassNameWithObjectCommonJS.types

@@ -0,0 +1,4 @@
+=== tests/cases/conformance/externalModules/exportClassNameWithObjectCommonJS.ts ===
+export class Object {}
+>Object : Object
+

tests/baselines/reference/exportClassNameWithObjectSystem.errors.txt

@@ -0,0 +1,8 @@
+tests/cases/conformance/externalModules/exportClassNameWithObjectSystem.ts(1,14): error TS2725: Class name cannot be 'Object' when targeting ES5 with module System.
+
+
+==== tests/cases/conformance/externalModules/exportClassNameWithObjectSystem.ts (1 errors) ====
+    export class Object {}
+                 ~~~~~~
+!!! error TS2725: Class name cannot be 'Object' when targeting ES5 with module System.
+    

tests/baselines/reference/exportClassNameWithObjectSystem.js

@@ -0,0 +1,21 @@
+//// [exportClassNameWithObjectSystem.ts]
+export class Object {}
+
+
+//// [exportClassNameWithObjectSystem.js]
+System.register([], function (exports_1, context_1) {
+    var Object;
+    "use strict";
+    var __moduleName = context_1 && context_1.id;
+    return {
+        setters: [],
+        execute: function () {
+            Object = /** @class */ (function () {
+                function Object() {
+                }
+                return Object;
+            }());
+            exports_1("Object", Object);
+        }
+    };
+});

tests/baselines/reference/exportClassNameWithObjectSystem.symbols

@@ -0,0 +1,4 @@
+=== tests/cases/conformance/externalModules/exportClassNameWithObjectSystem.ts ===
+export class Object {}
+>Object : Symbol(Object, Decl(exportClassNameWithObjectSystem.ts, 0, 0))
+

tests/baselines/reference/exportClassNameWithObjectSystem.types

@@ -0,0 +1,4 @@
+=== tests/cases/conformance/externalModules/exportClassNameWithObjectSystem.ts ===
+export class Object {}
+>Object : Object
+

tests/baselines/reference/exportClassNameWithObjectUMD.errors.txt

@@ -0,0 +1,8 @@
+tests/cases/conformance/externalModules/exportClassNameWithObjectUMD.ts(1,14): error TS2725: Class name cannot be 'Object' when targeting ES5 with module UMD.
+
+
+==== tests/cases/conformance/externalModules/exportClassNameWithObjectUMD.ts (1 errors) ====
+    export class Object {}
+                 ~~~~~~
+!!! error TS2725: Class name cannot be 'Object' when targeting ES5 with module UMD.
+    

tests/baselines/reference/exportClassNameWithObjectUMD.js

@@ -0,0 +1,23 @@
+//// [exportClassNameWithObjectUMD.ts]
+export class Object {}
+
+
+//// [exportClassNameWithObjectUMD.js]
+(function (factory) {
+    if (typeof module === "object" && typeof module.exports === "object") {
+        var v = factory(require, exports);
+        if (v !== undefined) module.exports = v;
+    }
+    else if (typeof define === "function" && define.amd) {
+        define(["require", "exports"], factory);
+    }
+})(function (require, exports) {
+    "use strict";
+    Object.defineProperty(exports, "__esModule", { value: true });
+    var Object = /** @class */ (function () {
+        function Object() {
+        }
+        return Object;
+    }());
+    exports.Object = Object;
+});

tests/baselines/reference/exportClassNameWithObjectUMD.symbols

@@ -0,0 +1,4 @@
+=== tests/cases/conformance/externalModules/exportClassNameWithObjectUMD.ts ===
+export class Object {}
+>Object : Symbol(Object, Decl(exportClassNameWithObjectUMD.ts, 0, 0))
+

tests/baselines/reference/exportClassNameWithObjectUMD.types

@@ -0,0 +1,4 @@
+=== tests/cases/conformance/externalModules/exportClassNameWithObjectUMD.ts ===
+export class Object {}
+>Object : Object
+

tests/baselines/reference/exportDefaultClassNameWithObject.errors.txt

@@ -0,0 +1,8 @@
+tests/cases/conformance/externalModules/exportDefaultClassNameWithObject.ts(1,22): error TS2725: Class name cannot be 'Object' when targeting ES5 with module CommonJS.
+
+
+==== tests/cases/conformance/externalModules/exportDefaultClassNameWithObject.ts (1 errors) ====
+    export default class Object {}
+                         ~~~~~~
+!!! error TS2725: Class name cannot be 'Object' when targeting ES5 with module CommonJS.
+    

tests/baselines/reference/exportDefaultClassNameWithObject.js

@@ -0,0 +1,13 @@
+//// [exportDefaultClassNameWithObject.ts]
+export default class Object {}
+
+
+//// [exportDefaultClassNameWithObject.js]
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+var Object = /** @class */ (function () {
+    function Object() {
+    }
+    return Object;
+}());
+exports.default = Object;

tests/baselines/reference/exportDefaultClassNameWithObject.symbols

@@ -0,0 +1,4 @@
+=== tests/cases/conformance/externalModules/exportDefaultClassNameWithObject.ts ===
+export default class Object {}
+>Object : Symbol(Object, Decl(exportDefaultClassNameWithObject.ts, 0, 0))
+

tests/baselines/reference/exportDefaultClassNameWithObject.types

@@ -0,0 +1,4 @@
+=== tests/cases/conformance/externalModules/exportDefaultClassNameWithObject.ts ===
+export default class Object {}
+>Object : Object
+

tests/cases/conformance/externalModules/es6/es6modulekindExportClassNameWithObject.ts

@@ -0,0 +1,3 @@
+// @target: ES5
+// @module: es2015
+export class Object {}

tests/cases/conformance/externalModules/esnext/exnextmodulekindExportClassNameWithObject.ts

@@ -0,0 +1,3 @@
+// @target: ES5
+// @module: esnext
+export class Object {}

tests/cases/conformance/externalModules/exportAmbientClassNameWithObject.ts

@@ -0,0 +1,2 @@
+// @target: ES5
+export declare class Object {}

tests/cases/conformance/externalModules/exportClassNameWithObjectAMD.ts

@@ -0,0 +1,3 @@
+// @target: ES5
+// @module: amd
+export class Object {}

tests/cases/conformance/externalModules/exportClassNameWithObjectCommonJS.ts

@@ -0,0 +1,3 @@
+// @target: ES5
+// @module: commonjs
+export class Object {}

tests/cases/conformance/externalModules/exportClassNameWithObjectSystem.ts

@@ -0,0 +1,3 @@
+// @target: ES5
+// @module: system
+export class Object {}

tests/cases/conformance/externalModules/exportClassNameWithObjectUMD.ts

@@ -0,0 +1,3 @@
+// @target: ES5
+// @module: umd
+export class Object {}

tests/cases/conformance/externalModules/exportDefaultClassNameWithObject.ts

@@ -0,0 +1,2 @@
+// @target: ES5
+export default class Object {}