Add test

Author: mhegazy

tests/baselines/reference/declarationEmit_bindingPatters.js

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+//// [declarationEmit_bindingPatters.ts]
+
+const k = ({x: z = 'y'}) => { }
+
+var a;
+function f({} = a, [] = a, { p: {} = a} = a) {
+}
+
+//// [declarationEmit_bindingPatters.js]
+var k = function (_a) {
+    var _b = _a.x, z = _b === void 0 ? 'y' : _b;
+};
+var a;
+function f(_a, _b, _c) {
+    var _a = a;
+    var _b = a;
+    var _d = (_c === void 0 ? a : _c).p, _e = _d === void 0 ? a : _d;
+}
+
+
+//// [declarationEmit_bindingPatters.d.ts]
+declare const k: ({x:z}: {
+    x?: string;
+}) => void;
+declare var a: any;
+declare function f({}?: any, []?: any, {p: {}}?: any): void;

tests/baselines/reference/declarationEmit_bindingPatters.symbols

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+=== tests/cases/compiler/declarationEmit_bindingPatters.ts ===
+
+const k = ({x: z = 'y'}) => { }
+>k : Symbol(k, Decl(declarationEmit_bindingPatters.ts, 1, 5))
+>x : Symbol(x)
+>z : Symbol(z, Decl(declarationEmit_bindingPatters.ts, 1, 12))
+
+var a;
+>a : Symbol(a, Decl(declarationEmit_bindingPatters.ts, 3, 3))
+
+function f({} = a, [] = a, { p: {} = a} = a) {
+>f : Symbol(f, Decl(declarationEmit_bindingPatters.ts, 3, 6))
+>a : Symbol(a, Decl(declarationEmit_bindingPatters.ts, 3, 3))
+>a : Symbol(a, Decl(declarationEmit_bindingPatters.ts, 3, 3))
+>a : Symbol(a, Decl(declarationEmit_bindingPatters.ts, 3, 3))
+>a : Symbol(a, Decl(declarationEmit_bindingPatters.ts, 3, 3))
+}

tests/baselines/reference/declarationEmit_bindingPatters.types

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+=== tests/cases/compiler/declarationEmit_bindingPatters.ts ===
+
+const k = ({x: z = 'y'}) => { }
+>k : ({x:z}: { x?: string; }) => void
+>({x: z = 'y'}) => { } : ({x:z}: { x?: string; }) => void
+>x : any
+>z : string
+>'y' : string
+
+var a;
+>a : any
+
+function f({} = a, [] = a, { p: {} = a} = a) {
+>f : ({}?: any, []?: any, {p:{}}?: any) => void
+>a : any
+>a : any
+>p : any
+>a : any
+>a : any
+}

tests/cases/compiler/declarationEmit_bindingPatters.ts

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+// @declaration: true
+
+const k = ({x: z = 'y'}) => { }
+
+var a;
+function f({} = a, [] = a, { p: {} = a} = a) {
+}