344 lines
16 KiB
Text
344 lines
16 KiB
Text
=== tests/cases/conformance/functions/functionImplementations.ts ===
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// FunctionExpression with no return type annotation and no return statement returns void
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var v: void = function () { } ();
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>v : Symbol(v, Decl(functionImplementations.ts, 1, 3))
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// FunctionExpression f with no return type annotation and directly references f in its body returns any
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var a: any = function f() {
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>a : Symbol(a, Decl(functionImplementations.ts, 4, 3), Decl(functionImplementations.ts, 7, 3), Decl(functionImplementations.ts, 12, 3), Decl(functionImplementations.ts, 24, 3), Decl(functionImplementations.ts, 25, 3), Decl(functionImplementations.ts, 84, 3))
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>f : Symbol(f, Decl(functionImplementations.ts, 4, 12))
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return f;
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>f : Symbol(f, Decl(functionImplementations.ts, 4, 12))
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};
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var a: any = function f() {
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>a : Symbol(a, Decl(functionImplementations.ts, 4, 3), Decl(functionImplementations.ts, 7, 3), Decl(functionImplementations.ts, 12, 3), Decl(functionImplementations.ts, 24, 3), Decl(functionImplementations.ts, 25, 3), Decl(functionImplementations.ts, 84, 3))
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>f : Symbol(f, Decl(functionImplementations.ts, 7, 12))
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return f();
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>f : Symbol(f, Decl(functionImplementations.ts, 7, 12))
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};
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// FunctionExpression f with no return type annotation and indirectly references f in its body returns any
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var a: any = function f() {
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>a : Symbol(a, Decl(functionImplementations.ts, 4, 3), Decl(functionImplementations.ts, 7, 3), Decl(functionImplementations.ts, 12, 3), Decl(functionImplementations.ts, 24, 3), Decl(functionImplementations.ts, 25, 3), Decl(functionImplementations.ts, 84, 3))
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>f : Symbol(f, Decl(functionImplementations.ts, 12, 12))
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var x = f;
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>x : Symbol(x, Decl(functionImplementations.ts, 13, 7))
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>f : Symbol(f, Decl(functionImplementations.ts, 12, 12))
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return x;
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>x : Symbol(x, Decl(functionImplementations.ts, 13, 7))
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};
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// Two mutually recursive function implementations with no return type annotations
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function rec1() {
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>rec1 : Symbol(rec1, Decl(functionImplementations.ts, 15, 2))
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return rec2();
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>rec2 : Symbol(rec2, Decl(functionImplementations.ts, 20, 1))
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}
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function rec2() {
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>rec2 : Symbol(rec2, Decl(functionImplementations.ts, 20, 1))
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return rec1();
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>rec1 : Symbol(rec1, Decl(functionImplementations.ts, 15, 2))
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}
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var a = rec1();
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>a : Symbol(a, Decl(functionImplementations.ts, 4, 3), Decl(functionImplementations.ts, 7, 3), Decl(functionImplementations.ts, 12, 3), Decl(functionImplementations.ts, 24, 3), Decl(functionImplementations.ts, 25, 3), Decl(functionImplementations.ts, 84, 3))
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>rec1 : Symbol(rec1, Decl(functionImplementations.ts, 15, 2))
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var a = rec2();
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>a : Symbol(a, Decl(functionImplementations.ts, 4, 3), Decl(functionImplementations.ts, 7, 3), Decl(functionImplementations.ts, 12, 3), Decl(functionImplementations.ts, 24, 3), Decl(functionImplementations.ts, 25, 3), Decl(functionImplementations.ts, 84, 3))
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>rec2 : Symbol(rec2, Decl(functionImplementations.ts, 20, 1))
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// Two mutually recursive function implementations with return type annotation in one
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function rec3(): number {
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>rec3 : Symbol(rec3, Decl(functionImplementations.ts, 25, 15))
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return rec4();
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>rec4 : Symbol(rec4, Decl(functionImplementations.ts, 30, 1))
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}
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function rec4() {
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>rec4 : Symbol(rec4, Decl(functionImplementations.ts, 30, 1))
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return rec3();
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>rec3 : Symbol(rec3, Decl(functionImplementations.ts, 25, 15))
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}
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var n: number;
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>n : Symbol(n, Decl(functionImplementations.ts, 34, 3), Decl(functionImplementations.ts, 35, 3), Decl(functionImplementations.ts, 36, 3), Decl(functionImplementations.ts, 39, 3), Decl(functionImplementations.ts, 56, 3), Decl(functionImplementations.ts, 61, 3), Decl(functionImplementations.ts, 66, 3))
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var n = rec3();
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>n : Symbol(n, Decl(functionImplementations.ts, 34, 3), Decl(functionImplementations.ts, 35, 3), Decl(functionImplementations.ts, 36, 3), Decl(functionImplementations.ts, 39, 3), Decl(functionImplementations.ts, 56, 3), Decl(functionImplementations.ts, 61, 3), Decl(functionImplementations.ts, 66, 3))
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>rec3 : Symbol(rec3, Decl(functionImplementations.ts, 25, 15))
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var n = rec4();
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>n : Symbol(n, Decl(functionImplementations.ts, 34, 3), Decl(functionImplementations.ts, 35, 3), Decl(functionImplementations.ts, 36, 3), Decl(functionImplementations.ts, 39, 3), Decl(functionImplementations.ts, 56, 3), Decl(functionImplementations.ts, 61, 3), Decl(functionImplementations.ts, 66, 3))
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>rec4 : Symbol(rec4, Decl(functionImplementations.ts, 30, 1))
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// FunctionExpression with no return type annotation and returns a number
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var n = function () {
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>n : Symbol(n, Decl(functionImplementations.ts, 34, 3), Decl(functionImplementations.ts, 35, 3), Decl(functionImplementations.ts, 36, 3), Decl(functionImplementations.ts, 39, 3), Decl(functionImplementations.ts, 56, 3), Decl(functionImplementations.ts, 61, 3), Decl(functionImplementations.ts, 66, 3))
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return 3;
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} ();
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// FunctionExpression with no return type annotation and returns null
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var nu = null;
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>nu : Symbol(nu, Decl(functionImplementations.ts, 44, 3), Decl(functionImplementations.ts, 45, 3))
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var nu = function () {
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>nu : Symbol(nu, Decl(functionImplementations.ts, 44, 3), Decl(functionImplementations.ts, 45, 3))
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return null;
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} ();
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// FunctionExpression with no return type annotation and returns undefined
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var un = undefined;
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>un : Symbol(un, Decl(functionImplementations.ts, 50, 3), Decl(functionImplementations.ts, 51, 3))
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>undefined : Symbol(undefined)
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var un = function () {
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>un : Symbol(un, Decl(functionImplementations.ts, 50, 3), Decl(functionImplementations.ts, 51, 3))
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return undefined;
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>undefined : Symbol(undefined)
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} ();
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// FunctionExpression with no return type annotation and returns a type parameter type
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var n = function <T>(x: T) {
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>n : Symbol(n, Decl(functionImplementations.ts, 34, 3), Decl(functionImplementations.ts, 35, 3), Decl(functionImplementations.ts, 36, 3), Decl(functionImplementations.ts, 39, 3), Decl(functionImplementations.ts, 56, 3), Decl(functionImplementations.ts, 61, 3), Decl(functionImplementations.ts, 66, 3))
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>T : Symbol(T, Decl(functionImplementations.ts, 56, 18))
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>x : Symbol(x, Decl(functionImplementations.ts, 56, 21))
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>T : Symbol(T, Decl(functionImplementations.ts, 56, 18))
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return x;
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>x : Symbol(x, Decl(functionImplementations.ts, 56, 21))
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} (4);
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// FunctionExpression with no return type annotation and returns a constrained type parameter type
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var n = function <T extends {}>(x: T) {
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>n : Symbol(n, Decl(functionImplementations.ts, 34, 3), Decl(functionImplementations.ts, 35, 3), Decl(functionImplementations.ts, 36, 3), Decl(functionImplementations.ts, 39, 3), Decl(functionImplementations.ts, 56, 3), Decl(functionImplementations.ts, 61, 3), Decl(functionImplementations.ts, 66, 3))
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>T : Symbol(T, Decl(functionImplementations.ts, 61, 18))
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>x : Symbol(x, Decl(functionImplementations.ts, 61, 32))
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>T : Symbol(T, Decl(functionImplementations.ts, 61, 18))
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return x;
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>x : Symbol(x, Decl(functionImplementations.ts, 61, 32))
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} (4);
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// FunctionExpression with no return type annotation with multiple return statements with identical types
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var n = function () {
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>n : Symbol(n, Decl(functionImplementations.ts, 34, 3), Decl(functionImplementations.ts, 35, 3), Decl(functionImplementations.ts, 36, 3), Decl(functionImplementations.ts, 39, 3), Decl(functionImplementations.ts, 56, 3), Decl(functionImplementations.ts, 61, 3), Decl(functionImplementations.ts, 66, 3))
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return 3;
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return 5;
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}();
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// Otherwise, the inferred return type is the first of the types of the return statement expressions
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// in the function body that is a supertype of each of the others,
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// ignoring return statements with no expressions.
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// A compile - time error occurs if no return statement expression has a type that is a supertype of each of the others.
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// FunctionExpression with no return type annotation with multiple return statements with subtype relation between returns
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class Base { private m; }
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>Base : Symbol(Base, Decl(functionImplementations.ts, 69, 4))
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>m : Symbol(m, Decl(functionImplementations.ts, 76, 12))
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class Derived extends Base { private q; }
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>Derived : Symbol(Derived, Decl(functionImplementations.ts, 76, 25))
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>Base : Symbol(Base, Decl(functionImplementations.ts, 69, 4))
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>q : Symbol(q, Decl(functionImplementations.ts, 77, 28))
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var b: Base;
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>b : Symbol(b, Decl(functionImplementations.ts, 78, 3), Decl(functionImplementations.ts, 79, 3))
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>Base : Symbol(Base, Decl(functionImplementations.ts, 69, 4))
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var b = function () {
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>b : Symbol(b, Decl(functionImplementations.ts, 78, 3), Decl(functionImplementations.ts, 79, 3))
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return new Base(); return new Derived();
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>Base : Symbol(Base, Decl(functionImplementations.ts, 69, 4))
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>Derived : Symbol(Derived, Decl(functionImplementations.ts, 76, 25))
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} ();
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// FunctionExpression with no return type annotation with multiple return statements with one a recursive call
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var a = function f() {
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>a : Symbol(a, Decl(functionImplementations.ts, 4, 3), Decl(functionImplementations.ts, 7, 3), Decl(functionImplementations.ts, 12, 3), Decl(functionImplementations.ts, 24, 3), Decl(functionImplementations.ts, 25, 3), Decl(functionImplementations.ts, 84, 3))
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>f : Symbol(f, Decl(functionImplementations.ts, 84, 7))
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return new Base(); return new Derived(); return f(); // ?
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>Base : Symbol(Base, Decl(functionImplementations.ts, 69, 4))
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>Derived : Symbol(Derived, Decl(functionImplementations.ts, 76, 25))
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>f : Symbol(f, Decl(functionImplementations.ts, 84, 7))
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} ();
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// FunctionExpression with non -void return type annotation with a single throw statement
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undefined === function (): number {
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>undefined : Symbol(undefined)
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throw undefined;
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>undefined : Symbol(undefined)
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};
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// Type of 'this' in function implementation is 'any'
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function thisFunc() {
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>thisFunc : Symbol(thisFunc, Decl(functionImplementations.ts, 91, 2))
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var x = this;
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>x : Symbol(x, Decl(functionImplementations.ts, 95, 7), Decl(functionImplementations.ts, 96, 7))
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var x: any;
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>x : Symbol(x, Decl(functionImplementations.ts, 95, 7), Decl(functionImplementations.ts, 96, 7))
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}
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// Function signature with optional parameter, no type annotation and initializer has initializer's type
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function opt1(n = 4) {
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>opt1 : Symbol(opt1, Decl(functionImplementations.ts, 97, 1))
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>n : Symbol(n, Decl(functionImplementations.ts, 100, 14))
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var m = n;
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>m : Symbol(m, Decl(functionImplementations.ts, 101, 7), Decl(functionImplementations.ts, 102, 7))
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>n : Symbol(n, Decl(functionImplementations.ts, 100, 14))
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var m: number;
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>m : Symbol(m, Decl(functionImplementations.ts, 101, 7), Decl(functionImplementations.ts, 102, 7))
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}
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// Function signature with optional parameter, no type annotation and initializer has initializer's widened type
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function opt2(n = { x: null, y: undefined }) {
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>opt2 : Symbol(opt2, Decl(functionImplementations.ts, 103, 1))
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>n : Symbol(n, Decl(functionImplementations.ts, 106, 14))
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>x : Symbol(x, Decl(functionImplementations.ts, 106, 19))
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>y : Symbol(y, Decl(functionImplementations.ts, 106, 28))
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>undefined : Symbol(undefined)
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var m = n;
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>m : Symbol(m, Decl(functionImplementations.ts, 107, 7), Decl(functionImplementations.ts, 108, 7))
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>n : Symbol(n, Decl(functionImplementations.ts, 106, 14))
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var m: { x: any; y: any };
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>m : Symbol(m, Decl(functionImplementations.ts, 107, 7), Decl(functionImplementations.ts, 108, 7))
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>x : Symbol(x, Decl(functionImplementations.ts, 108, 12))
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>y : Symbol(y, Decl(functionImplementations.ts, 108, 20))
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}
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// Function signature with initializer referencing other parameter to the left
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function opt3(n: number, m = n) {
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>opt3 : Symbol(opt3, Decl(functionImplementations.ts, 109, 1))
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>n : Symbol(n, Decl(functionImplementations.ts, 112, 14))
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>m : Symbol(m, Decl(functionImplementations.ts, 112, 24))
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>n : Symbol(n, Decl(functionImplementations.ts, 112, 14))
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var y = m;
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>y : Symbol(y, Decl(functionImplementations.ts, 113, 7), Decl(functionImplementations.ts, 114, 7))
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>m : Symbol(m, Decl(functionImplementations.ts, 112, 24))
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var y: number;
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>y : Symbol(y, Decl(functionImplementations.ts, 113, 7), Decl(functionImplementations.ts, 114, 7))
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}
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// Function signature with optional parameter has correct codegen
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// (tested above)
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// FunctionExpression with non -void return type annotation return with no expression
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function f6(): number {
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>f6 : Symbol(f6, Decl(functionImplementations.ts, 115, 1))
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return;
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}
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class Derived2 extends Base { private r: string; }
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>Derived2 : Symbol(Derived2, Decl(functionImplementations.ts, 123, 1))
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>Base : Symbol(Base, Decl(functionImplementations.ts, 69, 4))
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>r : Symbol(r, Decl(functionImplementations.ts, 125, 29))
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class AnotherClass { private x }
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>AnotherClass : Symbol(AnotherClass, Decl(functionImplementations.ts, 125, 50))
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>x : Symbol(x, Decl(functionImplementations.ts, 126, 20))
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// if f is a contextually typed function expression, the inferred return type is the union type
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// of the types of the return statement expressions in the function body,
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// ignoring return statements with no expressions.
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var f7: (x: number) => string | number = x => { // should be (x: number) => number | string
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>f7 : Symbol(f7, Decl(functionImplementations.ts, 130, 3))
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>x : Symbol(x, Decl(functionImplementations.ts, 130, 9))
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>x : Symbol(x, Decl(functionImplementations.ts, 130, 40))
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if (x < 0) { return x; }
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>x : Symbol(x, Decl(functionImplementations.ts, 130, 40))
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>x : Symbol(x, Decl(functionImplementations.ts, 130, 40))
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return x.toString();
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>x.toString : Symbol(Number.toString, Decl(lib.d.ts, 458, 18))
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>x : Symbol(x, Decl(functionImplementations.ts, 130, 40))
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>toString : Symbol(Number.toString, Decl(lib.d.ts, 458, 18))
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}
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var f8: (x: number) => any = x => { // should be (x: number) => Base
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>f8 : Symbol(f8, Decl(functionImplementations.ts, 134, 3))
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>x : Symbol(x, Decl(functionImplementations.ts, 134, 9))
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>x : Symbol(x, Decl(functionImplementations.ts, 134, 28))
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return new Base();
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>Base : Symbol(Base, Decl(functionImplementations.ts, 69, 4))
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return new Derived2();
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>Derived2 : Symbol(Derived2, Decl(functionImplementations.ts, 123, 1))
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}
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var f9: (x: number) => any = x => { // should be (x: number) => Base
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>f9 : Symbol(f9, Decl(functionImplementations.ts, 138, 3))
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>x : Symbol(x, Decl(functionImplementations.ts, 138, 9))
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>x : Symbol(x, Decl(functionImplementations.ts, 138, 28))
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return new Base();
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>Base : Symbol(Base, Decl(functionImplementations.ts, 69, 4))
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return new Derived();
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>Derived : Symbol(Derived, Decl(functionImplementations.ts, 76, 25))
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return new Derived2();
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>Derived2 : Symbol(Derived2, Decl(functionImplementations.ts, 123, 1))
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}
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var f10: (x: number) => any = x => { // should be (x: number) => Derived | Derived1
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>f10 : Symbol(f10, Decl(functionImplementations.ts, 143, 3))
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>x : Symbol(x, Decl(functionImplementations.ts, 143, 10))
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>x : Symbol(x, Decl(functionImplementations.ts, 143, 29))
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return new Derived();
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>Derived : Symbol(Derived, Decl(functionImplementations.ts, 76, 25))
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return new Derived2();
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>Derived2 : Symbol(Derived2, Decl(functionImplementations.ts, 123, 1))
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}
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var f11: (x: number) => any = x => { // should be (x: number) => Base | AnotherClass
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>f11 : Symbol(f11, Decl(functionImplementations.ts, 147, 3))
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>x : Symbol(x, Decl(functionImplementations.ts, 147, 10))
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>x : Symbol(x, Decl(functionImplementations.ts, 147, 29))
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return new Base();
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>Base : Symbol(Base, Decl(functionImplementations.ts, 69, 4))
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return new AnotherClass();
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>AnotherClass : Symbol(AnotherClass, Decl(functionImplementations.ts, 125, 50))
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}
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var f12: (x: number) => any = x => { // should be (x: number) => Base | AnotherClass
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>f12 : Symbol(f12, Decl(functionImplementations.ts, 151, 3))
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>x : Symbol(x, Decl(functionImplementations.ts, 151, 10))
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>x : Symbol(x, Decl(functionImplementations.ts, 151, 29))
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return new Base();
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>Base : Symbol(Base, Decl(functionImplementations.ts, 69, 4))
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return; // should be ignored
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return new AnotherClass();
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>AnotherClass : Symbol(AnotherClass, Decl(functionImplementations.ts, 125, 50))
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}
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