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test_jit_inline_special_obj.mjs
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test_jit_inline_special_obj.mjs
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function assert(condition, message) {
if (!condition) throw new Error(message);
}
function assertEq(actual, expected, message) {
if (actual !== expected) {
throw new Error(`${message}: expected ${expected}, got ${actual}`);
}
}
function runNewTargetHot() {
function readNewTarget() {
return new.target;
}
let last = null;
for (let i = 0; i < 600; i++) {
last = readNewTarget();
}
return last;
}
class BaseBox {
static value = 7;
}
class DerivedBox extends BaseBox {
static readSuperValue() {
return super.value;
}
}
const superReader = DerivedBox.readSuperValue;
const staticValueSymbol = Symbol("static-value");
class SymbolBaseBox {
static [staticValueSymbol] = 11;
}
class SymbolDerivedBox extends SymbolBaseBox {
static readSuperSymbol() {
return super[staticValueSymbol];
}
}
const superSymbolReader = SymbolDerivedBox.readSuperSymbol;
class ConstructorBase {
get value() {
return this.tag;
}
}
class ConstructorDerived extends ConstructorBase {
constructor() {
super();
this.tag = "ctor-super";
this.fromCtor = super.value;
}
}
function runSuperHot() {
let last = 0;
for (let i = 0; i < 600; i++) {
last = superReader();
}
return last;
}
function runSuperSymbolHot() {
let last = 0;
for (let i = 0; i < 600; i++) {
last = superSymbolReader();
}
return last;
}
const isAnt = typeof process === "object"
&& process !== null
&& typeof process.versions === "object"
&& process.versions !== null
&& typeof process.versions.ant === "string";
assertEq(runNewTargetHot(), undefined, "hot inline helper preserves new.target");
assertEq(superReader(), 7, "extracted static super value lookup");
assertEq(runSuperHot(), 7, "hot direct call preserves super value lookup");
assertEq(superSymbolReader(), 11, "extracted static super symbol lookup");
assertEq(runSuperSymbolHot(), 11, "hot direct call preserves super symbol lookup");
assertEq(new ConstructorDerived().fromCtor, "ctor-super", "constructor super getter lookup");
if (isAnt) {
const antOnly = await import("./test_jit_inline_special_obj_import.mjs");
await antOnly.verifyImportBinding(assert, assertEq);
}
console.log("OK: test_jit_inline_special_obj");

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test_jit_inline_special_obj.mjs (2 KB)

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