Another test case

Author: sheetalkamat

tests/baselines/reference/metadataOfUnion.js

@@ -0,0 +1,50 @@
+//// [metadataOfUnion.ts]
+function PropDeco(target: Object, propKey: string | symbol) { }
+
+class A {
+}
+
+class B {
+    @PropDeco
+    x: "foo" | A;
+
+    @PropDeco
+    y: true | boolean;
+
+    @PropDeco
+    z: "foo" | boolean;
+}
+
+//// [metadataOfUnion.js]
+var __decorate = (this && this.__decorate) || function (decorators, target, key, desc) {
+    var c = arguments.length, r = c < 3 ? target : desc === null ? desc = Object.getOwnPropertyDescriptor(target, key) : desc, d;
+    if (typeof Reflect === "object" && typeof Reflect.decorate === "function") r = Reflect.decorate(decorators, target, key, desc);
+    else for (var i = decorators.length - 1; i >= 0; i--) if (d = decorators[i]) r = (c < 3 ? d(r) : c > 3 ? d(target, key, r) : d(target, key)) || r;
+    return c > 3 && r && Object.defineProperty(target, key, r), r;
+};
+var __metadata = (this && this.__metadata) || function (k, v) {
+    if (typeof Reflect === "object" && typeof Reflect.metadata === "function") return Reflect.metadata(k, v);
+};
+function PropDeco(target, propKey) { }
+var A = (function () {
+    function A() {
+    }
+    return A;
+}());
+var B = (function () {
+    function B() {
+    }
+    return B;
+}());
+__decorate([
+    PropDeco,
+    __metadata("design:type", Object)
+], B.prototype, "x");
+__decorate([
+    PropDeco,
+    __metadata("design:type", Boolean)
+], B.prototype, "y");
+__decorate([
+    PropDeco,
+    __metadata("design:type", Object)
+], B.prototype, "z");

tests/baselines/reference/metadataOfUnion.symbols

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+=== tests/cases/compiler/metadataOfUnion.ts ===
+function PropDeco(target: Object, propKey: string | symbol) { }
+>PropDeco : Symbol(PropDeco, Decl(metadataOfUnion.ts, 0, 0))
+>target : Symbol(target, Decl(metadataOfUnion.ts, 0, 18))
+>Object : Symbol(Object, Decl(lib.d.ts, --, --), Decl(lib.d.ts, --, --))
+>propKey : Symbol(propKey, Decl(metadataOfUnion.ts, 0, 33))
+
+class A {
+>A : Symbol(A, Decl(metadataOfUnion.ts, 0, 63))
+}
+
+class B {
+>B : Symbol(B, Decl(metadataOfUnion.ts, 3, 1))
+
+    @PropDeco
+>PropDeco : Symbol(PropDeco, Decl(metadataOfUnion.ts, 0, 0))
+
+    x: "foo" | A;
+>x : Symbol(B.x, Decl(metadataOfUnion.ts, 5, 9))
+>A : Symbol(A, Decl(metadataOfUnion.ts, 0, 63))
+
+    @PropDeco
+>PropDeco : Symbol(PropDeco, Decl(metadataOfUnion.ts, 0, 0))
+
+    y: true | boolean;
+>y : Symbol(B.y, Decl(metadataOfUnion.ts, 7, 17))
+
+    @PropDeco
+>PropDeco : Symbol(PropDeco, Decl(metadataOfUnion.ts, 0, 0))
+
+    z: "foo" | boolean;
+>z : Symbol(B.z, Decl(metadataOfUnion.ts, 10, 22))
+}

tests/baselines/reference/metadataOfUnion.types

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+=== tests/cases/compiler/metadataOfUnion.ts ===
+function PropDeco(target: Object, propKey: string | symbol) { }
+>PropDeco : (target: Object, propKey: string | symbol) => void
+>target : Object
+>Object : Object
+>propKey : string | symbol
+
+class A {
+>A : A
+}
+
+class B {
+>B : B
+
+    @PropDeco
+>PropDeco : (target: Object, propKey: string | symbol) => void
+
+    x: "foo" | A;
+>x : A | "foo"
+>A : A
+
+    @PropDeco
+>PropDeco : (target: Object, propKey: string | symbol) => void
+
+    y: true | boolean;
+>y : boolean
+>true : true
+
+    @PropDeco
+>PropDeco : (target: Object, propKey: string | symbol) => void
+
+    z: "foo" | boolean;
+>z : boolean | "foo"
+}

tests/cases/compiler/metadataOfUnion.ts

@@ -0,0 +1,17 @@
+// @experimentalDecorators: true
+// @emitDecoratorMetadata: true
+function PropDeco(target: Object, propKey: string | symbol) { }
+
+class A {
+}
+
+class B {
+    @PropDeco
+    x: "foo" | A;
+
+    @PropDeco
+    y: true | boolean;
+
+    @PropDeco
+    z: "foo" | boolean;
+}