311 lines
10 KiB
Plaintext
311 lines
10 KiB
Plaintext
=== tests/cases/conformance/expressions/typeGuards/typeGuardsInFunctionAndModuleBlock.ts ===
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// typeguards are scoped in function/module block
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function foo(x: number | string | boolean) {
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>foo : (x: string | number | boolean) => string
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>x : string | number | boolean
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return typeof x === "string"
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>typeof x === "string" ? x : function f() { var b = x; // number | boolean return typeof x === "boolean" ? x.toString() // boolean : x.toString(); // number } () : string
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>typeof x === "string" : boolean
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>typeof x : string
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>x : string | number | boolean
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>"string" : string
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? x
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>x : string
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: function f() {
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>function f() { var b = x; // number | boolean return typeof x === "boolean" ? x.toString() // boolean : x.toString(); // number } () : string
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>function f() { var b = x; // number | boolean return typeof x === "boolean" ? x.toString() // boolean : x.toString(); // number } : () => string
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>f : () => string
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var b = x; // number | boolean
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>b : number | boolean
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>x : number | boolean
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return typeof x === "boolean"
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>typeof x === "boolean" ? x.toString() // boolean : x.toString() : string
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>typeof x === "boolean" : boolean
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>typeof x : string
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>x : number | boolean
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>"boolean" : string
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? x.toString() // boolean
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>x.toString() : string
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>x.toString : () => string
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>x : boolean
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>toString : () => string
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: x.toString(); // number
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>x.toString() : string
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>x.toString : (radix?: number) => string
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>x : number
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>toString : (radix?: number) => string
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} ();
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}
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function foo2(x: number | string | boolean) {
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>foo2 : (x: string | number | boolean) => string
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>x : string | number | boolean
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return typeof x === "string"
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>typeof x === "string" ? x : function f(a: number | boolean) { var b = x; // new scope - number | boolean return typeof x === "boolean" ? x.toString() // boolean : x.toString(); // number } (x) : string
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>typeof x === "string" : boolean
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>typeof x : string
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>x : string | number | boolean
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>"string" : string
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? x
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>x : string
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: function f(a: number | boolean) {
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>function f(a: number | boolean) { var b = x; // new scope - number | boolean return typeof x === "boolean" ? x.toString() // boolean : x.toString(); // number } (x) : string
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>function f(a: number | boolean) { var b = x; // new scope - number | boolean return typeof x === "boolean" ? x.toString() // boolean : x.toString(); // number } : (a: number | boolean) => string
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>f : (a: number | boolean) => string
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>a : number | boolean
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var b = x; // new scope - number | boolean
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>b : number | boolean
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>x : number | boolean
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return typeof x === "boolean"
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>typeof x === "boolean" ? x.toString() // boolean : x.toString() : string
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>typeof x === "boolean" : boolean
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>typeof x : string
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>x : number | boolean
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>"boolean" : string
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? x.toString() // boolean
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>x.toString() : string
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>x.toString : () => string
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>x : boolean
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>toString : () => string
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: x.toString(); // number
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>x.toString() : string
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>x.toString : (radix?: number) => string
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>x : number
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>toString : (radix?: number) => string
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} (x); // x here is narrowed to number | boolean
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>x : number | boolean
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}
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function foo3(x: number | string | boolean) {
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>foo3 : (x: string | number | boolean) => string
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>x : string | number | boolean
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return typeof x === "string"
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>typeof x === "string" ? x : (() => { var b = x; // new scope - number | boolean return typeof x === "boolean" ? x.toString() // boolean : x.toString(); // number })() : string
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>typeof x === "string" : boolean
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>typeof x : string
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>x : string | number | boolean
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>"string" : string
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? x
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>x : string
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: (() => {
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>(() => { var b = x; // new scope - number | boolean return typeof x === "boolean" ? x.toString() // boolean : x.toString(); // number })() : string
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>(() => { var b = x; // new scope - number | boolean return typeof x === "boolean" ? x.toString() // boolean : x.toString(); // number }) : () => string
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>() => { var b = x; // new scope - number | boolean return typeof x === "boolean" ? x.toString() // boolean : x.toString(); // number } : () => string
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var b = x; // new scope - number | boolean
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>b : number | boolean
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>x : number | boolean
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return typeof x === "boolean"
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>typeof x === "boolean" ? x.toString() // boolean : x.toString() : string
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>typeof x === "boolean" : boolean
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>typeof x : string
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>x : number | boolean
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>"boolean" : string
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? x.toString() // boolean
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>x.toString() : string
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>x.toString : () => string
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>x : boolean
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>toString : () => string
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: x.toString(); // number
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>x.toString() : string
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>x.toString : (radix?: number) => string
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>x : number
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>toString : (radix?: number) => string
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})();
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}
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function foo4(x: number | string | boolean) {
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>foo4 : (x: string | number | boolean) => string
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>x : string | number | boolean
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return typeof x === "string"
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>typeof x === "string" ? x : ((a: number | boolean) => { var b = x; // new scope - number | boolean return typeof x === "boolean" ? x.toString() // boolean : x.toString(); // number })(x) : string
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>typeof x === "string" : boolean
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>typeof x : string
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>x : string | number | boolean
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>"string" : string
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? x
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>x : string
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: ((a: number | boolean) => {
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>((a: number | boolean) => { var b = x; // new scope - number | boolean return typeof x === "boolean" ? x.toString() // boolean : x.toString(); // number })(x) : string
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>((a: number | boolean) => { var b = x; // new scope - number | boolean return typeof x === "boolean" ? x.toString() // boolean : x.toString(); // number }) : (a: number | boolean) => string
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>(a: number | boolean) => { var b = x; // new scope - number | boolean return typeof x === "boolean" ? x.toString() // boolean : x.toString(); // number } : (a: number | boolean) => string
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>a : number | boolean
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var b = x; // new scope - number | boolean
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>b : number | boolean
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>x : number | boolean
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return typeof x === "boolean"
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>typeof x === "boolean" ? x.toString() // boolean : x.toString() : string
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>typeof x === "boolean" : boolean
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>typeof x : string
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>x : number | boolean
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>"boolean" : string
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? x.toString() // boolean
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>x.toString() : string
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>x.toString : () => string
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>x : boolean
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>toString : () => string
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: x.toString(); // number
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>x.toString() : string
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>x.toString : (radix?: number) => string
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>x : number
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>toString : (radix?: number) => string
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})(x); // x here is narrowed to number | boolean
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>x : number | boolean
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}
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// Type guards affect nested function expressions, but not nested function declarations
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function foo5(x: number | string | boolean) {
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>foo5 : (x: string | number | boolean) => void
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>x : string | number | boolean
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if (typeof x === "string") {
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>typeof x === "string" : boolean
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>typeof x : string
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>x : string | number | boolean
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>"string" : string
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var y = x; // string;
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>y : string
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>x : string
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function foo() {
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>foo : () => void
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var z = x; // number | string | boolean, type guard has no effect
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>z : string | number | boolean
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>x : string | number | boolean
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}
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}
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}
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module m {
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>m : typeof m
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var x: number | string | boolean;
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>x : string | number | boolean
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module m2 {
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>m2 : typeof m2
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var b = x; // new scope - number | boolean | string
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>b : string | number | boolean
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>x : string | number | boolean
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var y: string;
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>y : string
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if (typeof x === "string") {
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>typeof x === "string" : boolean
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>typeof x : string
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>x : string | number | boolean
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>"string" : string
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y = x // string;
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>y = x : string
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>y : string
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>x : string
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} else {
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y = typeof x === "boolean"
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>y = typeof x === "boolean" ? x.toString() // boolean : x.toString() : string
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>y : string
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>typeof x === "boolean" ? x.toString() // boolean : x.toString() : string
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>typeof x === "boolean" : boolean
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>typeof x : string
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>x : number | boolean
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>"boolean" : string
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? x.toString() // boolean
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>x.toString() : string
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>x.toString : () => string
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>x : boolean
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>toString : () => string
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: x.toString(); // number
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>x.toString() : string
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>x.toString : (radix?: number) => string
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>x : number
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>toString : (radix?: number) => string
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}
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}
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}
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module m1 {
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>m1 : typeof m1
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var x: number | string | boolean;
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>x : string | number | boolean
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module m2.m3 {
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>m2 : typeof m2
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>m3 : typeof m3
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var b = x; // new scope - number | boolean | string
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>b : string | number | boolean
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>x : string | number | boolean
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var y: string;
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>y : string
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if (typeof x === "string") {
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>typeof x === "string" : boolean
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>typeof x : string
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>x : string | number | boolean
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>"string" : string
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y = x // string;
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>y = x : string
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>y : string
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>x : string
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} else {
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y = typeof x === "boolean"
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>y = typeof x === "boolean" ? x.toString() // boolean : x.toString() : string
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>y : string
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>typeof x === "boolean" ? x.toString() // boolean : x.toString() : string
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>typeof x === "boolean" : boolean
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>typeof x : string
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>x : number | boolean
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>"boolean" : string
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? x.toString() // boolean
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>x.toString() : string
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>x.toString : () => string
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>x : boolean
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>toString : () => string
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: x.toString(); // number
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>x.toString() : string
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>x.toString : (radix?: number) => string
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>x : number
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>toString : (radix?: number) => string
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}
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}
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}
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