addInitializer.js - mozsearch

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// |jit-test| skip-if: !getBuildConfiguration("decorators")

load(libdir + "asserts.js");

let extraInitializerCalled = {};

function checkDecoratorContext(kind, isPrivate, isStatic, name) {

  return function (value, context) {

    if (kind == "field") {

      assertEq(value, undefined);

    } else if (kind == "accessor") {

      assertEq(typeof value, "object");

      assertEq(typeof value.get, "function");

      assertEq(typeof value.set, "function");

    assertEq(context.kind, kind);

    assertEq(typeof context.access, "object");

    assertEq(context.private, isPrivate);

    assertEq(context.static, isStatic);

    assertEq(context.name, name);

    assertEq(typeof context.addInitializer, "function");

    context.addInitializer(() => {extraInitializerCalled[context.name] = true;});

    // return undefined

class C {

  @checkDecoratorContext("field", false, false, "x") x;

  @checkDecoratorContext("accessor", true, false, "y accessor storage") accessor y;

  @checkDecoratorContext("method", false, false, "f") f() {};

  @checkDecoratorContext("method", false, false, 1) 1() {};

  @checkDecoratorContext("method", false, false, 2) 2n() {};

let c = new C();

assertEq(extraInitializerCalled["x"], true);

assertEq(extraInitializerCalled["y accessor storage"], true);

assertEq(extraInitializerCalled["f"], true);

assertEq(extraInitializerCalled["1"], true);

assertEq(extraInitializerCalled["2"], true);