blob: 297edd7fcbcf6ce055e190d64f5da05681c6047f [file] [log] [blame]
//@ requireOptions("--useBigInt=1")
function assert(condition) {
if (!condition)
throw new Error("assertion failed");
}
function assert_eq(a, b) {
if (a !== b)
throw new Error("assertion failed: " + a + " === " + b);
}
function assert_neq(a, b) {
if (a === b)
throw new Error("assertion failed: " + a + " !== " + b);
}
function assert_throws(fun) {
let threw = false;
try {
fun()
} catch {
threw = true
}
assert(threw)
}
noInline(assert)
noInline(assert_eq)
noInline(assert_neq)
noInline(assert_throws)
function testCacheableDeleteById() {
function makeFoo() {
let foo = {}
foo.baz = 1
foo.bar = 2
delete foo.baz
return foo
}
noInline(makeFoo)
arr = new Array(50)
for (let j = 0; j < 50; ++j) {
arr[j] = makeFoo()
}
for (let j = 0; j < 50; ++j) {
const foo = arr[j]
assert(foo.bar === 2)
assert_eq(Object.keys(foo).length, 1)
assert(!("baz" in foo))
foo.bag = 1
assert(foo.bag == 1)
foo["bug" + j] = 3
assert(foo["bug" + j] == 3)
assert(!("baz" in foo))
}
}
noInline(testCacheableDeleteById)
function testCacheableDeleteByVal() {
function makeFoo2() {
let foo = {}
foo.baz = 1
foo.bar = 2
delete foo["baz"]
return foo
}
noInline(makeFoo2)
arr = new Array(50)
for (let j = 0; j < 50; ++j) {
arr[j] = makeFoo2()
}
for (let j = 0; j < 50; ++j) {
const foo = arr[j]
assert(foo.bar === 2)
assert_eq(Object.keys(foo).length, 1)
assert(!("baz" in foo))
foo.bag = 1
assert(foo.bag == 1)
foo["bug" + j] = 3
assert(foo["bug" + j] == 3)
assert(!("baz" in foo))
}
}
noInline(testCacheableDeleteByVal)
function testCacheableEmptyDeleteById() {
function makeFoo3() {
let foo = {}
foo.baz = 1
foo.bar = 2
assert_eq(delete foo.bar, true)
delete foo.baz
return foo
}
noInline(makeFoo3)
arr = new Array(50)
for (let j = 0; j < 50; ++j) {
arr[j] = makeFoo3()
}
for (let j = 0; j < 50; ++j) {
const foo = arr[j]
assert_eq(Object.keys(foo).length, 0)
assert(!("baz" in foo))
assert(!("bar" in foo))
foo.bag = 1
assert(foo.bag == 1)
foo["bug" + j] = 3
assert(foo["bug" + j] == 3)
assert(!("baz" in foo))
assert(!("bar" in foo))
}
}
noInline(testCacheableEmptyDeleteById)
function testCacheableDeleteByIdMiss() {
function makeFoo4() {
let foo = {}
foo.baz = 1
foo.bar = 2
assert_eq(delete foo.baz, true)
assert_eq(delete foo.baz, true)
assert_eq(delete foo.baz, true)
Object.defineProperty(foo, 'foobar', {
value: 42,
configurable: false
});
assert_eq(delete foo.foobar, false)
assert_eq(delete foo.foobar, false)
assert_eq(foo.foobar, 42)
return foo
}
noInline(makeFoo4)
arr = new Array(50)
for (let j = 0; j < 50; ++j) {
arr[j] = makeFoo4()
}
for (let j = 0; j < 50; ++j) {
const foo = arr[j]
assert(foo.bar === 2)
assert_eq(Object.keys(foo).length, 1)
assert(!("baz" in foo))
foo.bag = 1
assert(foo.bag == 1)
foo["bug" + j] = 3
assert(foo["bug" + j] == 3)
assert(!("baz" in foo))
}
}
noInline(testCacheableDeleteByIdMiss)
function testDeleteIndex() {
function makeFoo5() {
let foo = {}
foo.baz = 1
foo.bar = 2
foo[0] = 23
foo[1] = 25
assert_eq(delete foo.bar, true)
assert_eq(delete foo[1], true)
delete foo.baz
return foo
}
noInline(makeFoo5)
arr = new Array(50)
for (let j = 0; j < 50; ++j) {
arr[j] = makeFoo5()
}
for (let j = 0; j < 50; ++j) {
const foo = arr[j]
assert_eq(Object.keys(foo).length, 1)
assert(!("baz" in foo))
assert(!("bar" in foo))
foo.bag = 1
assert(foo.bag == 1)
foo["bug" + j] = 3
assert(foo["bug" + j] == 3)
assert(!("baz" in foo))
assert(!("bar" in foo))
assert_eq(foo[0], 23)
assert_eq(foo[1], undefined)
foo[1] = 1
assert_eq(foo[1], 1)
}
}
noInline(testDeleteIndex)
function testPolymorphicDelByVal(i) {
function makeFoo6() {
let foo = {}
foo["baz"+i] = 1
foo.bar = 2
delete foo["baz"+i]
return foo
}
noInline(makeFoo6)
arr = new Array(50)
for (let j = 0; j < 50; ++j) {
arr[j] = makeFoo6()
}
for (let j = 0; j < 50; ++j) {
const foo = arr[j]
assert(foo.bar === 2)
assert_eq(Object.keys(foo).length, 1)
assert(!("baz"+i in foo))
foo.bag = 1
assert(foo.bag == 1)
foo["bug" + j] = 3
assert(foo["bug" + j] == 3)
assert(!("baz"+i in foo))
}
}
noInline(testPolymorphicDelByVal)
function testBigintDeleteByVal() {
function makeFoo7() {
let foo = {}
foo[1234567890123456789012345678901234567890n] = 1
foo.bar = 2
delete foo[1234567890123456789012345678901234567890n]
return foo
}
noInline(makeFoo7)
arr = new Array(50)
for (let j = 0; j < 50; ++j) {
arr[j] = makeFoo7()
}
for (let j = 0; j < 50; ++j) {
const foo = arr[j]
assert(foo.bar === 2)
assert_eq(Object.keys(foo).length, 1)
assert(!(1234567890123456789012345678901234567890n in foo))
foo.bag = 1
assert(foo.bag == 1)
foo["bug" + j] = 3
assert(foo["bug" + j] == 3)
assert(!("baz" in foo))
}
}
noInline(testBigintDeleteByVal)
function testSymbolDeleteByVal() {
const symbol = Symbol('foo');
function makeFoo8() {
let foo = {}
foo[symbol] = 1
assert(!(Symbol('foo') in foo))
assert(symbol in foo)
foo.bar = 2
delete foo[symbol]
return foo
}
noInline(makeFoo8)
arr = new Array(50)
for (let j = 0; j < 50; ++j) {
arr[j] = makeFoo8()
}
for (let j = 0; j < 50; ++j) {
const foo = arr[j]
assert(foo.bar === 2)
assert_eq(Object.keys(foo).length, 1)
assert(!(symbol in foo))
foo.bag = 1
assert(foo.bag == 1)
foo["bug" + j] = 3
assert(foo["bug" + j] == 3)
assert(!("baz" in foo))
}
}
noInline(testSymbolDeleteByVal)
function testObjDeleteByVal() {
const symbol = { i: "foo" };
function makeFoo9() {
let foo = {}
foo[symbol] = 1
assert(symbol in foo)
assert(!({ i: "foo" } in foo))
foo.bar = 2
delete foo[symbol]
return foo
}
noInline(makeFoo9)
arr = new Array(50)
for (let j = 0; j < 50; ++j) {
arr[j] = makeFoo9()
}
for (let j = 0; j < 50; ++j) {
const foo = arr[j]
assert(foo.bar === 2)
assert_eq(Object.keys(foo).length, 1)
assert(!(symbol in foo))
foo.bag = 1
assert(foo.bag == 1)
foo["bug" + j] = 3
assert(foo["bug" + j] == 3)
assert(!("baz" in foo))
}
}
noInline(testObjDeleteByVal)
function testStrict() {
"use strict";
function makeFoo10() {
let foo = {}
foo.baz = 1
foo.bar = 2
assert_eq(delete foo.baz, true)
assert_eq(delete foo.baz, true)
Object.defineProperty(foo, 'foobar', {
value: 42,
configurable: false
});
assert_throws(() => delete foo.foobar)
assert_eq(foo.foobar, 42)
return foo
}
noInline(makeFoo10)
arr = new Array(50)
for (let j = 0; j < 50; ++j) {
arr[j] = makeFoo10()
}
for (let j = 0; j < 50; ++j) {
const foo = arr[j]
assert(foo.bar === 2)
assert_eq(Object.keys(foo).length, 1)
assert(!("baz" in foo))
foo.bag = 1
assert(foo.bag == 1)
foo["bug" + j] = 3
assert(foo["bug" + j] == 3)
assert(!("baz" in foo))
}
}
noInline(testStrict)
function testOverride() {
arr = new Array(50)
for (let j = 0; j < 50; ++j) {
arr[j] = function() { }
assert_eq($vm.hasOwnLengthProperty(arr[j]), true)
delete arr[j].length
assert_eq($vm.hasOwnLengthProperty(arr[j]), false)
}
for (let j = 0; j < 50; ++j) {
const foo = arr[j]
assert_eq(Object.keys(foo).length, 0)
assert(!("baz" in foo))
foo.bag = 1
assert(foo.bag == 1)
foo["bug" + j] = 3
assert(foo["bug" + j] == 3)
assert(!("baz" in foo))
}
}
noInline(testOverride)
function testNonObject() {
function deleteIt(foo) {
assert(delete foo.baz)
return foo
}
noInline(deleteIt)
arr = new Array(50)
for (let j = 0; j < 50; ++j) {
arr[j] = { baz: j }
}
for (let j = 0; j < 50; ++j) {
const foo = arr[j]
assert("baz" in foo)
deleteIt(foo)
assert(!("baz" in foo))
}
assert(deleteIt("baz") == "baz")
deleteIt(Symbol("hi"))
}
noInline(testNonObject)
function testNonObjectStrict() {
"use strict";
function deleteIt(foo) {
assert(delete foo["baz"])
return foo
}
noInline(deleteIt)
arr = new Array(50)
for (let j = 0; j < 50; ++j) {
arr[j] = { baz: j }
}
for (let j = 0; j < 50; ++j) {
const foo = arr[j]
assert("baz" in foo)
deleteIt(foo)
deleteIt(5)
assert(!("baz" in foo))
}
assert(deleteIt("baz") == "baz")
deleteIt(Symbol("hi"))
let foo = {}
Object.defineProperty(foo, 'baz', {
value: 42,
configurable: false
});
assert_throws(() => deleteIt(foo))
}
noInline(testNonObjectStrict)
function testExceptionUnwind() {
"use strict";
function mutateThem(a,b,c,d,e,f,g,h,i) {
g.i = 42
}
noInline(mutateThem)
function deleteIt(foo) {
let caught = false
try {
var a = { i: 1 }
var v = { i: 10 }
var b = { i: 100 }
var c = { i: 1000 }
var d = { i: 10000 }
var e = { i: 100000 }
var f = { i: 1000000 }
var g = { i: 10000000 }
var h = { i: 100000000 }
var i = { i: 1000000000 }
mutateThem(a,b,c,d,e,f,g,h,i)
delete foo["baz"]
a = b = c = d = e = f = g = h = i
} catch {
assert_eq(a.i, 1)
assert_eq(i.i, 1000000000)
assert_eq(g.i, 42)
caught = true
}
return caught
}
noInline(deleteIt)
for (let j = 0; j < 100000; ++j) {
assert(!deleteIt({ j, baz: 5 }))
}
let foo = {}
Object.defineProperty(foo, 'baz', {
value: 42,
configurable: false
});
assert(deleteIt(foo))
}
noInline(testExceptionUnwind)
function testTDZ() {
delete foo.x
let foo = { x: 5 }
}
noInline(testTDZ)
function testPolyProto() {
function makeFoo11() {
class C {
constructor() {
this.x = 42
}
}
return new C
}
noInline(makeFoo11)
for (let i = 0; i < 1000; ++i) {
let o = makeFoo11()
assert_eq(o.x, 42)
assert(delete o.x)
assert(!("x" in o))
}
}
noInline(testPolyProto)
for (let i = 0; i < 1000; ++i) {
testCacheableDeleteById()
testCacheableDeleteByVal()
testCacheableEmptyDeleteById()
testCacheableDeleteByIdMiss()
testDeleteIndex()
testPolymorphicDelByVal(i)
testBigintDeleteByVal()
testSymbolDeleteByVal()
testStrict()
testOverride()
testNonObject()
testNonObjectStrict()
assert_throws(testTDZ)
testPolyProto()
}
testExceptionUnwind()