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// |jit-test| skip-if: !getBuildConfiguration("decorators")
load(libdir + "asserts.js");
let dec1Called = false;
let dec2Called = false;
// This explicitly tests the case where undefined is returned.
function dec1(value, context) {
dec1Called = true;
// returns undefined
}
function dec2(value, context) {
dec2Called = true;
return (initialValue) => 2;
}
function dec3(value, context) {
return (initialValue) => initialValue*2;
}
function checkDecoratorContext(kind, isPrivate, isStatic, name) {
return (value, context) => {
assertEq(value, undefined);
assertEq(context.kind, kind);
assertEq(typeof context.access, "object");
assertEq(context.private, isPrivate);
assertEq(context.static, isStatic);
assertEq(context.name, name);
if (isStatic) {
assertEq(typeof context.addInitializer, "undefined");
} else {
assertEq(typeof context.addInitializer, "function");
}
}
}
class C {
@dec1 x;
@dec1 x2 = 1;
@checkDecoratorContext("field", false, false, "x3") x3;
@checkDecoratorContext("field", false, true, "x4") static x4;
@checkDecoratorContext("field", true, false, "#x5") #x5;
@dec2 x6;
@dec3 x7 = 1;
@dec2 @dec3 x8 = 1;
@dec2 static x9;
@dec2 #x10;
getX10 = () => {
return this.#x10;
};
@dec3 #x11 = 2;
getX11 = () => {
return this.#x11;
};
@dec1 42 = 1;
@dec2 [43];
@dec2 static #x12 = 1;
getX12() {
return C.#x12;
}
}
let c = new C();
assertEq(dec1Called, true);
assertEq(c.x2, 1);
assertEq(dec2Called, true);
assertEq(c.x6, 2);
assertEq(c.x7, 2);
assertEq(c.x8, 2);
assertEq(C.x9, 2);
assertEq(c.getX10(), 2);
assertEq(c.getX11(), 4);
assertEq(c[42], 1);
assertEq(c[43], 2);
assertEq(c.getX12(), 2);
assertThrowsInstanceOf(() => {
class D {
@(() => { return "hello!"; }) f(x) { return x; }
}
}, TypeError), "Returning a value other than undefined or a callable throws.";
const decoratorOrder = [];
function makeOrderedDecorator(order) {
return function (value, context) {
decoratorOrder.push(order);
return value;
}
}
class D {
@makeOrderedDecorator(1) @makeOrderedDecorator(2) @makeOrderedDecorator(3)
x = 1;
}
let d = new D();
assertEq(decoratorOrder.length, 3);
assertEq(decoratorOrder[0], 3);
assertEq(decoratorOrder[1], 2);
assertEq(decoratorOrder[2], 1);
assertEq(d.x, 1);