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v8/test/cctest/test-orderedhashtable.cc
Sathya Gunasekaran f4664d0257 [runtime] Implement SmallOrderedHashTable 
Implements the Allocate, Add, and HasKey operations. Also, adds GC
support for this new instance type.

Bug: v8:6443
Change-Id: I1cc7ba2faead2a11f7b0381a57858629e123aee6
Reviewed-on: https://chromium-review.googlesource.com/500447
Commit-Queue: Sathya Gunasekaran <gsathya@chromium.org>
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Reviewed-by: Hannes Payer <hpayer@chromium.org>
Reviewed-by: Camillo Bruni <cbruni@chromium.org>
Cr-Commit-Position: refs/heads/master@{#45551}
2017-05-29 10:04:22 +00:00

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// Copyright 2017 the V8 project authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include <utility>
#include "src/v8.h"
#include "src/objects-inl.h"
#include "test/cctest/cctest.h"
using namespace v8::internal;
static Isolate* GetIsolateFrom(LocalContext* context) {
return reinterpret_cast<Isolate*>((*context)->GetIsolate());
}
void Verify(Handle<SmallOrderedHashSet> set) {
#if VERIFY_HEAP
set->ObjectVerify();
#endif
}
TEST(Insertion) {
LocalContext context;
Isolate* isolate = GetIsolateFrom(&context);
Factory* factory = isolate->factory();
HandleScope scope(isolate);
Handle<SmallOrderedHashSet> set = factory->NewSmallOrderedHashSet();
Verify(set);
CHECK_EQ(2, set->NumberOfBuckets());
CHECK_EQ(0, set->NumberOfElements());
// Add a new key.
Handle<Smi> key1(Smi::FromInt(1), isolate);
CHECK(!set->HasKey(isolate, key1));
set = SmallOrderedHashSet::Add(set, key1);
Verify(set);
CHECK_EQ(2, set->NumberOfBuckets());
CHECK_EQ(1, set->NumberOfElements());
CHECK(set->HasKey(isolate, key1));
// Add existing key.
set = SmallOrderedHashSet::Add(set, key1);
Verify(set);
CHECK_EQ(2, set->NumberOfBuckets());
CHECK_EQ(1, set->NumberOfElements());
CHECK(set->HasKey(isolate, key1));
Handle<String> key2 = factory->NewStringFromAsciiChecked("foo");
CHECK(!set->HasKey(isolate, key2));
set = SmallOrderedHashSet::Add(set, key2);
Verify(set);
CHECK_EQ(2, set->NumberOfBuckets());
CHECK_EQ(2, set->NumberOfElements());
CHECK(set->HasKey(isolate, key1));
CHECK(set->HasKey(isolate, key2));
set = SmallOrderedHashSet::Add(set, key2);
Verify(set);
CHECK_EQ(2, set->NumberOfBuckets());
CHECK_EQ(2, set->NumberOfElements());
CHECK(set->HasKey(isolate, key1));
CHECK(set->HasKey(isolate, key2));
Handle<Symbol> key3 = factory->NewSymbol();
CHECK(!set->HasKey(isolate, key3));
set = SmallOrderedHashSet::Add(set, key3);
Verify(set);
CHECK_EQ(2, set->NumberOfBuckets());
CHECK_EQ(3, set->NumberOfElements());
CHECK(set->HasKey(isolate, key1));
CHECK(set->HasKey(isolate, key2));
CHECK(set->HasKey(isolate, key3));
set = SmallOrderedHashSet::Add(set, key3);
Verify(set);
CHECK_EQ(2, set->NumberOfBuckets());
CHECK_EQ(3, set->NumberOfElements());
CHECK(set->HasKey(isolate, key1));
CHECK(set->HasKey(isolate, key2));
CHECK(set->HasKey(isolate, key3));
Handle<Object> key4 = factory->NewHeapNumber(42.0);
CHECK(!set->HasKey(isolate, key4));
set = SmallOrderedHashSet::Add(set, key4);
Verify(set);
CHECK_EQ(2, set->NumberOfBuckets());
CHECK_EQ(4, set->NumberOfElements());
CHECK(set->HasKey(isolate, key1));
CHECK(set->HasKey(isolate, key2));
CHECK(set->HasKey(isolate, key3));
CHECK(set->HasKey(isolate, key4));
set = SmallOrderedHashSet::Add(set, key4);
Verify(set);
CHECK_EQ(2, set->NumberOfBuckets());
CHECK_EQ(4, set->NumberOfElements());
CHECK(set->HasKey(isolate, key1));
CHECK(set->HasKey(isolate, key2));
CHECK(set->HasKey(isolate, key3));
CHECK(set->HasKey(isolate, key4));
}
TEST(DuplicateHashCode) {
LocalContext context;
Isolate* isolate = GetIsolateFrom(&context);
Factory* factory = isolate->factory();
HandleScope scope(isolate);
Handle<SmallOrderedHashSet> set = factory->NewSmallOrderedHashSet();
Handle<JSObject> key1 = factory->NewJSObjectWithNullProto();
set = SmallOrderedHashSet::Add(set, key1);
Verify(set);
CHECK_EQ(2, set->NumberOfBuckets());
CHECK_EQ(1, set->NumberOfElements());
CHECK(set->HasKey(isolate, key1));
Handle<Name> hash_code_symbol = isolate->factory()->hash_code_symbol();
Handle<Smi> hash =
Handle<Smi>::cast(JSObject::GetDataProperty(key1, hash_code_symbol));
Handle<JSObject> key2 = factory->NewJSObjectWithNullProto();
LookupIterator it(key2, hash_code_symbol, key2, LookupIterator::OWN);
CHECK(key2->AddDataProperty(
&it, hash, NONE, v8::internal::AccessCheckInfo::THROW_ON_ERROR,
v8::internal::AccessCheckInfo::CERTAINLY_NOT_STORE_FROM_KEYED)
.IsJust());
set = SmallOrderedHashSet::Add(set, key2);
Verify(set);
CHECK_EQ(2, set->NumberOfBuckets());
CHECK_EQ(2, set->NumberOfElements());
CHECK(set->HasKey(isolate, key1));
CHECK(set->HasKey(isolate, key2));
}
TEST(Grow) {
LocalContext context;
Isolate* isolate = GetIsolateFrom(&context);
Factory* factory = isolate->factory();
HandleScope scope(isolate);
Handle<SmallOrderedHashSet> set = factory->NewSmallOrderedHashSet();
std::vector<Handle<Object>> keys;
for (size_t i = 0; i < 4; i++) {
Handle<Smi> key(Smi::FromInt(static_cast<int>(i)), isolate);
keys.push_back(key);
}
for (size_t i = 0; i < 4; i++) {
set = SmallOrderedHashSet::Add(set, keys[i]);
Verify(set);
}
for (size_t i = 0; i < 4; i++) {
CHECK(set->HasKey(isolate, keys[i]));
Verify(set);
}
CHECK_EQ(4, set->NumberOfElements());
CHECK_EQ(2, set->NumberOfBuckets());
CHECK_EQ(0, set->NumberOfDeletedElements());
Verify(set);
for (int i = 4; i < 8; i++) {
Handle<Smi> key(Smi::FromInt(i), isolate);
keys.push_back(key);
}
for (size_t i = 4; i < 8; i++) {
set = SmallOrderedHashSet::Add(set, keys[i]);
Verify(set);
}
for (size_t i = 0; i < 8; i++) {
CHECK(set->HasKey(isolate, keys[i]));
Verify(set);
}
CHECK_EQ(8, set->NumberOfElements());
CHECK_EQ(4, set->NumberOfBuckets());
CHECK_EQ(0, set->NumberOfDeletedElements());
Verify(set);
for (int i = 8; i < 16; i++) {
Handle<Smi> key(Smi::FromInt(i), isolate);
keys.push_back(key);
}
for (size_t i = 8; i < 16; i++) {
set = SmallOrderedHashSet::Add(set, keys[i]);
Verify(set);
}
for (size_t i = 0; i < 16; i++) {
CHECK(set->HasKey(isolate, keys[i]));
Verify(set);
}
CHECK_EQ(16, set->NumberOfElements());
CHECK_EQ(8, set->NumberOfBuckets());
CHECK_EQ(0, set->NumberOfDeletedElements());
Verify(set);
for (int i = 16; i < 32; i++) {
Handle<Smi> key(Smi::FromInt(i), isolate);
keys.push_back(key);
}
for (size_t i = 16; i < 32; i++) {
set = SmallOrderedHashSet::Add(set, keys[i]);
Verify(set);
}
for (size_t i = 0; i < 32; i++) {
CHECK(set->HasKey(isolate, keys[i]));
Verify(set);
}
CHECK_EQ(32, set->NumberOfElements());
CHECK_EQ(16, set->NumberOfBuckets());
CHECK_EQ(0, set->NumberOfDeletedElements());
Verify(set);
for (int i = 32; i < 64; i++) {
Handle<Smi> key(Smi::FromInt(i), isolate);
keys.push_back(key);
}
for (size_t i = 32; i < 64; i++) {
set = SmallOrderedHashSet::Add(set, keys[i]);
Verify(set);
}
for (size_t i = 0; i < 64; i++) {
CHECK(set->HasKey(isolate, keys[i]));
Verify(set);
}
CHECK_EQ(64, set->NumberOfElements());
CHECK_EQ(32, set->NumberOfBuckets());
CHECK_EQ(0, set->NumberOfDeletedElements());
Verify(set);
for (int i = 64; i < 128; i++) {
Handle<Smi> key(Smi::FromInt(i), isolate);
keys.push_back(key);
}
for (size_t i = 64; i < 128; i++) {
set = SmallOrderedHashSet::Add(set, keys[i]);
Verify(set);
}
for (size_t i = 0; i < 128; i++) {
CHECK(set->HasKey(isolate, keys[i]));
Verify(set);
}
CHECK_EQ(128, set->NumberOfElements());
CHECK_EQ(64, set->NumberOfBuckets());
CHECK_EQ(0, set->NumberOfDeletedElements());
Verify(set);
for (int i = 128; i < 254; i++) {
Handle<Smi> key(Smi::FromInt(i), isolate);
keys.push_back(key);
}
for (size_t i = 128; i < 254; i++) {
set = SmallOrderedHashSet::Add(set, keys[i]);
Verify(set);
}
for (size_t i = 0; i < 254; i++) {
CHECK(set->HasKey(isolate, keys[i]));
Verify(set);
}
CHECK_EQ(254, set->NumberOfElements());
CHECK_EQ(127, set->NumberOfBuckets());
CHECK_EQ(0, set->NumberOfDeletedElements());
Verify(set);
}
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