237 lines
10 KiB
Plaintext
237 lines
10 KiB
Plaintext
=== tests/cases/conformance/expressions/typeGuards/typeGuardsInFunction.ts ===
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// Note that type guards affect types of variables and parameters only and
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// have no effect on members of objects such as properties.
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// variables in global
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var num: number;
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>num : Symbol(num, Decl(typeGuardsInFunction.ts, 4, 3))
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var var1: string | number;
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>var1 : Symbol(var1, Decl(typeGuardsInFunction.ts, 5, 3))
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// Inside function declaration
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function f(param: string | number) {
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>f : Symbol(f, Decl(typeGuardsInFunction.ts, 5, 26))
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>param : Symbol(param, Decl(typeGuardsInFunction.ts, 7, 11))
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// global vars in function declaration
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num = typeof var1 === "string" && var1.length; // string
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>num : Symbol(num, Decl(typeGuardsInFunction.ts, 4, 3))
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>var1 : Symbol(var1, Decl(typeGuardsInFunction.ts, 5, 3))
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>var1.length : Symbol(String.length, Decl(lib.d.ts, 414, 19))
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>var1 : Symbol(var1, Decl(typeGuardsInFunction.ts, 5, 3))
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>length : Symbol(String.length, Decl(lib.d.ts, 414, 19))
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// variables in function declaration
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var var2: string | number;
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>var2 : Symbol(var2, Decl(typeGuardsInFunction.ts, 12, 7))
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num = typeof var2 === "string" && var2.length; // string
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>num : Symbol(num, Decl(typeGuardsInFunction.ts, 4, 3))
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>var2 : Symbol(var2, Decl(typeGuardsInFunction.ts, 12, 7))
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>var2.length : Symbol(String.length, Decl(lib.d.ts, 414, 19))
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>var2 : Symbol(var2, Decl(typeGuardsInFunction.ts, 12, 7))
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>length : Symbol(String.length, Decl(lib.d.ts, 414, 19))
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// parameters in function declaration
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num = typeof param === "string" && param.length; // string
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>num : Symbol(num, Decl(typeGuardsInFunction.ts, 4, 3))
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>param : Symbol(param, Decl(typeGuardsInFunction.ts, 7, 11))
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>param.length : Symbol(String.length, Decl(lib.d.ts, 414, 19))
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>param : Symbol(param, Decl(typeGuardsInFunction.ts, 7, 11))
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>length : Symbol(String.length, Decl(lib.d.ts, 414, 19))
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}
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// local function declaration
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function f1(param: string | number) {
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>f1 : Symbol(f1, Decl(typeGuardsInFunction.ts, 17, 1))
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>param : Symbol(param, Decl(typeGuardsInFunction.ts, 19, 12))
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var var2: string | number;
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>var2 : Symbol(var2, Decl(typeGuardsInFunction.ts, 20, 7))
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function f2(param1: string | number) {
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>f2 : Symbol(f2, Decl(typeGuardsInFunction.ts, 20, 30))
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>param1 : Symbol(param1, Decl(typeGuardsInFunction.ts, 21, 16))
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// global vars in function declaration
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num = typeof var1 === "string" && var1.length; // string
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>num : Symbol(num, Decl(typeGuardsInFunction.ts, 4, 3))
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>var1 : Symbol(var1, Decl(typeGuardsInFunction.ts, 5, 3))
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>var1.length : Symbol(String.length, Decl(lib.d.ts, 414, 19))
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>var1 : Symbol(var1, Decl(typeGuardsInFunction.ts, 5, 3))
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>length : Symbol(String.length, Decl(lib.d.ts, 414, 19))
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// variables from outer function declaration
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num = typeof var2 === "string" && var2.length; // string
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>num : Symbol(num, Decl(typeGuardsInFunction.ts, 4, 3))
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>var2 : Symbol(var2, Decl(typeGuardsInFunction.ts, 20, 7))
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>var2.length : Symbol(String.length, Decl(lib.d.ts, 414, 19))
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>var2 : Symbol(var2, Decl(typeGuardsInFunction.ts, 20, 7))
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>length : Symbol(String.length, Decl(lib.d.ts, 414, 19))
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// parameters in outer declaration
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num = typeof param === "string" && param.length; // string
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>num : Symbol(num, Decl(typeGuardsInFunction.ts, 4, 3))
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>param : Symbol(param, Decl(typeGuardsInFunction.ts, 19, 12))
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>param.length : Symbol(String.length, Decl(lib.d.ts, 414, 19))
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>param : Symbol(param, Decl(typeGuardsInFunction.ts, 19, 12))
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>length : Symbol(String.length, Decl(lib.d.ts, 414, 19))
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// local
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var var3: string | number;
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>var3 : Symbol(var3, Decl(typeGuardsInFunction.ts, 32, 11))
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num = typeof var3 === "string" && var3.length; // string
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>num : Symbol(num, Decl(typeGuardsInFunction.ts, 4, 3))
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>var3 : Symbol(var3, Decl(typeGuardsInFunction.ts, 32, 11))
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>var3.length : Symbol(String.length, Decl(lib.d.ts, 414, 19))
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>var3 : Symbol(var3, Decl(typeGuardsInFunction.ts, 32, 11))
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>length : Symbol(String.length, Decl(lib.d.ts, 414, 19))
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num = typeof param1 === "string" && param1.length; // string
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>num : Symbol(num, Decl(typeGuardsInFunction.ts, 4, 3))
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>param1 : Symbol(param1, Decl(typeGuardsInFunction.ts, 21, 16))
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>param1.length : Symbol(String.length, Decl(lib.d.ts, 414, 19))
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>param1 : Symbol(param1, Decl(typeGuardsInFunction.ts, 21, 16))
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>length : Symbol(String.length, Decl(lib.d.ts, 414, 19))
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}
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}
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// Function expression
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function f2(param: string | number) {
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>f2 : Symbol(f2, Decl(typeGuardsInFunction.ts, 36, 1))
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>param : Symbol(param, Decl(typeGuardsInFunction.ts, 38, 12))
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// variables in function declaration
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var var2: string | number;
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>var2 : Symbol(var2, Decl(typeGuardsInFunction.ts, 40, 7))
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// variables in function expressions
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var r = function (param1: string | number) {
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>r : Symbol(r, Decl(typeGuardsInFunction.ts, 42, 7))
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>param1 : Symbol(param1, Decl(typeGuardsInFunction.ts, 42, 22))
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// global vars in function declaration
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num = typeof var1 === "string" && var1.length; // string
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>num : Symbol(num, Decl(typeGuardsInFunction.ts, 4, 3))
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>var1 : Symbol(var1, Decl(typeGuardsInFunction.ts, 5, 3))
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>var1.length : Symbol(String.length, Decl(lib.d.ts, 414, 19))
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>var1 : Symbol(var1, Decl(typeGuardsInFunction.ts, 5, 3))
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>length : Symbol(String.length, Decl(lib.d.ts, 414, 19))
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// variables from outer function declaration
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num = typeof var2 === "string" && var2.length; // string
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>num : Symbol(num, Decl(typeGuardsInFunction.ts, 4, 3))
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>var2 : Symbol(var2, Decl(typeGuardsInFunction.ts, 40, 7))
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>var2.length : Symbol(String.length, Decl(lib.d.ts, 414, 19))
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>var2 : Symbol(var2, Decl(typeGuardsInFunction.ts, 40, 7))
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>length : Symbol(String.length, Decl(lib.d.ts, 414, 19))
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// parameters in outer declaration
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num = typeof param === "string" && param.length; // string
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>num : Symbol(num, Decl(typeGuardsInFunction.ts, 4, 3))
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>param : Symbol(param, Decl(typeGuardsInFunction.ts, 38, 12))
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>param.length : Symbol(String.length, Decl(lib.d.ts, 414, 19))
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>param : Symbol(param, Decl(typeGuardsInFunction.ts, 38, 12))
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>length : Symbol(String.length, Decl(lib.d.ts, 414, 19))
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// local
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var var3: string | number;
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>var3 : Symbol(var3, Decl(typeGuardsInFunction.ts, 53, 11))
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num = typeof var3 === "string" && var3.length; // string
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>num : Symbol(num, Decl(typeGuardsInFunction.ts, 4, 3))
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>var3 : Symbol(var3, Decl(typeGuardsInFunction.ts, 53, 11))
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>var3.length : Symbol(String.length, Decl(lib.d.ts, 414, 19))
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>var3 : Symbol(var3, Decl(typeGuardsInFunction.ts, 53, 11))
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>length : Symbol(String.length, Decl(lib.d.ts, 414, 19))
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num = typeof param1 === "string" && param1.length; // string
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>num : Symbol(num, Decl(typeGuardsInFunction.ts, 4, 3))
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>param1 : Symbol(param1, Decl(typeGuardsInFunction.ts, 42, 22))
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>param1.length : Symbol(String.length, Decl(lib.d.ts, 414, 19))
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>param1 : Symbol(param1, Decl(typeGuardsInFunction.ts, 42, 22))
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>length : Symbol(String.length, Decl(lib.d.ts, 414, 19))
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} (param);
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>param : Symbol(param, Decl(typeGuardsInFunction.ts, 38, 12))
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}
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// Arrow expression
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function f3(param: string | number) {
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>f3 : Symbol(f3, Decl(typeGuardsInFunction.ts, 57, 1))
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>param : Symbol(param, Decl(typeGuardsInFunction.ts, 59, 12))
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// variables in function declaration
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var var2: string | number;
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>var2 : Symbol(var2, Decl(typeGuardsInFunction.ts, 61, 7))
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// variables in function expressions
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var r = ((param1: string | number) => {
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>r : Symbol(r, Decl(typeGuardsInFunction.ts, 63, 7))
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>param1 : Symbol(param1, Decl(typeGuardsInFunction.ts, 63, 14))
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// global vars in function declaration
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num = typeof var1 === "string" && var1.length; // string
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>num : Symbol(num, Decl(typeGuardsInFunction.ts, 4, 3))
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>var1 : Symbol(var1, Decl(typeGuardsInFunction.ts, 5, 3))
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>var1.length : Symbol(String.length, Decl(lib.d.ts, 414, 19))
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>var1 : Symbol(var1, Decl(typeGuardsInFunction.ts, 5, 3))
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>length : Symbol(String.length, Decl(lib.d.ts, 414, 19))
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// variables from outer function declaration
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num = typeof var2 === "string" && var2.length; // string
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>num : Symbol(num, Decl(typeGuardsInFunction.ts, 4, 3))
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>var2 : Symbol(var2, Decl(typeGuardsInFunction.ts, 61, 7))
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>var2.length : Symbol(String.length, Decl(lib.d.ts, 414, 19))
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>var2 : Symbol(var2, Decl(typeGuardsInFunction.ts, 61, 7))
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>length : Symbol(String.length, Decl(lib.d.ts, 414, 19))
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// parameters in outer declaration
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num = typeof param === "string" && param.length; // string
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>num : Symbol(num, Decl(typeGuardsInFunction.ts, 4, 3))
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>param : Symbol(param, Decl(typeGuardsInFunction.ts, 59, 12))
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>param.length : Symbol(String.length, Decl(lib.d.ts, 414, 19))
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>param : Symbol(param, Decl(typeGuardsInFunction.ts, 59, 12))
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>length : Symbol(String.length, Decl(lib.d.ts, 414, 19))
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// local
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var var3: string | number;
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>var3 : Symbol(var3, Decl(typeGuardsInFunction.ts, 74, 11))
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num = typeof var3 === "string" && var3.length; // string
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>num : Symbol(num, Decl(typeGuardsInFunction.ts, 4, 3))
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>var3 : Symbol(var3, Decl(typeGuardsInFunction.ts, 74, 11))
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>var3.length : Symbol(String.length, Decl(lib.d.ts, 414, 19))
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>var3 : Symbol(var3, Decl(typeGuardsInFunction.ts, 74, 11))
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>length : Symbol(String.length, Decl(lib.d.ts, 414, 19))
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num = typeof param1 === "string" && param1.length; // string
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>num : Symbol(num, Decl(typeGuardsInFunction.ts, 4, 3))
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>param1 : Symbol(param1, Decl(typeGuardsInFunction.ts, 63, 14))
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>param1.length : Symbol(String.length, Decl(lib.d.ts, 414, 19))
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>param1 : Symbol(param1, Decl(typeGuardsInFunction.ts, 63, 14))
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>length : Symbol(String.length, Decl(lib.d.ts, 414, 19))
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})(param);
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>param : Symbol(param, Decl(typeGuardsInFunction.ts, 59, 12))
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}
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// Return type of function
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// Inside function declaration
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var strOrNum: string | number;
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>strOrNum : Symbol(strOrNum, Decl(typeGuardsInFunction.ts, 81, 3))
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function f4() {
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>f4 : Symbol(f4, Decl(typeGuardsInFunction.ts, 81, 30))
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var var2: string | number = strOrNum;
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>var2 : Symbol(var2, Decl(typeGuardsInFunction.ts, 83, 7))
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>strOrNum : Symbol(strOrNum, Decl(typeGuardsInFunction.ts, 81, 3))
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return var2;
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>var2 : Symbol(var2, Decl(typeGuardsInFunction.ts, 83, 7))
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}
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strOrNum = typeof f4() === "string" && f4(); // string | number
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>strOrNum : Symbol(strOrNum, Decl(typeGuardsInFunction.ts, 81, 3))
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>f4 : Symbol(f4, Decl(typeGuardsInFunction.ts, 81, 30))
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>f4 : Symbol(f4, Decl(typeGuardsInFunction.ts, 81, 30))
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