d8daf5f817
There are no ASSERTS left in the cctest's. Review URL: http://codereview.chromium.org/93120 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@1793 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
447 lines
14 KiB
C++
447 lines
14 KiB
C++
// Copyright 2006-2008 the V8 project authors. All rights reserved.
|
|
|
|
// Check that we can traverse very deep stacks of ConsStrings using
|
|
// StringInputBuffer. Check that Get(int) works on very deep stacks
|
|
// of ConsStrings. These operations may not be very fast, but they
|
|
// should be possible without getting errors due to too deep recursion.
|
|
|
|
#include <stdlib.h>
|
|
|
|
#include "v8.h"
|
|
|
|
#include "factory.h"
|
|
#include "cctest.h"
|
|
#include "zone-inl.h"
|
|
|
|
unsigned int seed = 123;
|
|
|
|
static uint32_t gen() {
|
|
uint64_t z;
|
|
z = seed;
|
|
z *= 279470273;
|
|
z %= 4294967291U;
|
|
seed = static_cast<unsigned int>(z);
|
|
return static_cast<uint32_t>(seed >> 16);
|
|
}
|
|
|
|
|
|
using namespace v8::internal;
|
|
|
|
static v8::Persistent<v8::Context> env;
|
|
|
|
|
|
static void InitializeVM() {
|
|
if (env.IsEmpty()) {
|
|
v8::HandleScope scope;
|
|
const char* extensions[] = { "v8/print" };
|
|
v8::ExtensionConfiguration config(1, extensions);
|
|
env = v8::Context::New(&config);
|
|
}
|
|
v8::HandleScope scope;
|
|
env->Enter();
|
|
}
|
|
|
|
|
|
static const int NUMBER_OF_BUILDING_BLOCKS = 128;
|
|
static const int DEEP_DEPTH = 8 * 1024;
|
|
static const int SUPER_DEEP_DEPTH = 80 * 1024;
|
|
|
|
|
|
static void InitializeBuildingBlocks(
|
|
Handle<String> building_blocks[NUMBER_OF_BUILDING_BLOCKS]) {
|
|
// A list of pointers that we don't have any interest in cleaning up.
|
|
// If they are reachable from a root then leak detection won't complain.
|
|
for (int i = 0; i < NUMBER_OF_BUILDING_BLOCKS; i++) {
|
|
int len = gen() % 16;
|
|
if (len > 14) {
|
|
len += 1234;
|
|
}
|
|
switch (gen() % 4) {
|
|
case 0: {
|
|
uc16 buf[2000];
|
|
for (int j = 0; j < len; j++) {
|
|
buf[j] = gen() % 65536;
|
|
}
|
|
building_blocks[i] =
|
|
Factory::NewStringFromTwoByte(Vector<const uc16>(buf, len));
|
|
for (int j = 0; j < len; j++) {
|
|
CHECK_EQ(buf[j], building_blocks[i]->Get(j));
|
|
}
|
|
break;
|
|
}
|
|
case 1: {
|
|
char buf[2000];
|
|
for (int j = 0; j < len; j++) {
|
|
buf[j] = gen() % 128;
|
|
}
|
|
building_blocks[i] =
|
|
Factory::NewStringFromAscii(Vector<const char>(buf, len));
|
|
for (int j = 0; j < len; j++) {
|
|
CHECK_EQ(buf[j], building_blocks[i]->Get(j));
|
|
}
|
|
break;
|
|
}
|
|
case 2: {
|
|
class Resource: public v8::String::ExternalStringResource,
|
|
public ZoneObject {
|
|
public:
|
|
explicit Resource(Vector<const uc16> string): data_(string.start()) {
|
|
length_ = string.length();
|
|
}
|
|
virtual const uint16_t* data() const { return data_; }
|
|
virtual size_t length() const { return length_; }
|
|
|
|
private:
|
|
const uc16* data_;
|
|
size_t length_;
|
|
};
|
|
uc16* buf = Zone::NewArray<uc16>(len);
|
|
for (int j = 0; j < len; j++) {
|
|
buf[j] = gen() % 65536;
|
|
}
|
|
Resource* resource = new Resource(Vector<const uc16>(buf, len));
|
|
building_blocks[i] = Factory::NewExternalStringFromTwoByte(resource);
|
|
for (int j = 0; j < len; j++) {
|
|
CHECK_EQ(buf[j], building_blocks[i]->Get(j));
|
|
}
|
|
break;
|
|
}
|
|
case 3: {
|
|
char* buf = NewArray<char>(len);
|
|
for (int j = 0; j < len; j++) {
|
|
buf[j] = gen() % 128;
|
|
}
|
|
building_blocks[i] =
|
|
Factory::NewStringFromAscii(Vector<const char>(buf, len));
|
|
for (int j = 0; j < len; j++) {
|
|
CHECK_EQ(buf[j], building_blocks[i]->Get(j));
|
|
}
|
|
DeleteArray<char>(buf);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
static Handle<String> ConstructLeft(
|
|
Handle<String> building_blocks[NUMBER_OF_BUILDING_BLOCKS],
|
|
int depth) {
|
|
Handle<String> answer = Factory::NewStringFromAscii(CStrVector(""));
|
|
for (int i = 0; i < depth; i++) {
|
|
answer = Factory::NewConsString(
|
|
answer,
|
|
building_blocks[i % NUMBER_OF_BUILDING_BLOCKS]);
|
|
}
|
|
return answer;
|
|
}
|
|
|
|
|
|
static Handle<String> ConstructRight(
|
|
Handle<String> building_blocks[NUMBER_OF_BUILDING_BLOCKS],
|
|
int depth) {
|
|
Handle<String> answer = Factory::NewStringFromAscii(CStrVector(""));
|
|
for (int i = depth - 1; i >= 0; i--) {
|
|
answer = Factory::NewConsString(
|
|
building_blocks[i % NUMBER_OF_BUILDING_BLOCKS],
|
|
answer);
|
|
}
|
|
return answer;
|
|
}
|
|
|
|
|
|
static Handle<String> ConstructBalancedHelper(
|
|
Handle<String> building_blocks[NUMBER_OF_BUILDING_BLOCKS],
|
|
int from,
|
|
int to) {
|
|
CHECK(to > from);
|
|
if (to - from == 1) {
|
|
return building_blocks[from % NUMBER_OF_BUILDING_BLOCKS];
|
|
}
|
|
if (to - from == 2) {
|
|
return Factory::NewConsString(
|
|
building_blocks[from % NUMBER_OF_BUILDING_BLOCKS],
|
|
building_blocks[(from+1) % NUMBER_OF_BUILDING_BLOCKS]);
|
|
}
|
|
Handle<String> part1 =
|
|
ConstructBalancedHelper(building_blocks, from, from + ((to - from) / 2));
|
|
Handle<String> part2 =
|
|
ConstructBalancedHelper(building_blocks, from + ((to - from) / 2), to);
|
|
return Factory::NewConsString(part1, part2);
|
|
}
|
|
|
|
|
|
static Handle<String> ConstructBalanced(
|
|
Handle<String> building_blocks[NUMBER_OF_BUILDING_BLOCKS]) {
|
|
return ConstructBalancedHelper(building_blocks, 0, DEEP_DEPTH);
|
|
}
|
|
|
|
|
|
static StringInputBuffer buffer;
|
|
|
|
|
|
static void Traverse(Handle<String> s1, Handle<String> s2) {
|
|
int i = 0;
|
|
buffer.Reset(*s1);
|
|
StringInputBuffer buffer2(*s2);
|
|
while (buffer.has_more()) {
|
|
CHECK(buffer2.has_more());
|
|
uint16_t c = buffer.GetNext();
|
|
CHECK_EQ(c, buffer2.GetNext());
|
|
i++;
|
|
}
|
|
CHECK_EQ(s1->length(), i);
|
|
CHECK_EQ(s2->length(), i);
|
|
}
|
|
|
|
|
|
static void TraverseFirst(Handle<String> s1, Handle<String> s2, int chars) {
|
|
int i = 0;
|
|
buffer.Reset(*s1);
|
|
StringInputBuffer buffer2(*s2);
|
|
while (buffer.has_more() && i < chars) {
|
|
CHECK(buffer2.has_more());
|
|
uint16_t c = buffer.GetNext();
|
|
CHECK_EQ(c, buffer2.GetNext());
|
|
i++;
|
|
}
|
|
s1->Get(s1->length() - 1);
|
|
s2->Get(s2->length() - 1);
|
|
}
|
|
|
|
|
|
TEST(Traverse) {
|
|
printf("TestTraverse\n");
|
|
InitializeVM();
|
|
v8::HandleScope scope;
|
|
Handle<String> building_blocks[NUMBER_OF_BUILDING_BLOCKS];
|
|
ZoneScope zone(DELETE_ON_EXIT);
|
|
InitializeBuildingBlocks(building_blocks);
|
|
Handle<String> flat = ConstructBalanced(building_blocks);
|
|
FlattenString(flat);
|
|
Handle<String> left_asymmetric = ConstructLeft(building_blocks, DEEP_DEPTH);
|
|
Handle<String> right_asymmetric = ConstructRight(building_blocks, DEEP_DEPTH);
|
|
Handle<String> symmetric = ConstructBalanced(building_blocks);
|
|
printf("1\n");
|
|
Traverse(flat, symmetric);
|
|
printf("2\n");
|
|
Traverse(flat, left_asymmetric);
|
|
printf("3\n");
|
|
Traverse(flat, right_asymmetric);
|
|
printf("4\n");
|
|
Handle<String> left_deep_asymmetric =
|
|
ConstructLeft(building_blocks, SUPER_DEEP_DEPTH);
|
|
Handle<String> right_deep_asymmetric =
|
|
ConstructRight(building_blocks, SUPER_DEEP_DEPTH);
|
|
printf("5\n");
|
|
TraverseFirst(left_asymmetric, left_deep_asymmetric, 1050);
|
|
printf("6\n");
|
|
TraverseFirst(left_asymmetric, right_deep_asymmetric, 65536);
|
|
printf("7\n");
|
|
Handle<String> right_deep_slice =
|
|
Factory::NewStringSlice(left_deep_asymmetric,
|
|
left_deep_asymmetric->length() - 1050,
|
|
left_deep_asymmetric->length() - 50);
|
|
Handle<String> left_deep_slice =
|
|
Factory::NewStringSlice(right_deep_asymmetric,
|
|
right_deep_asymmetric->length() - 1050,
|
|
right_deep_asymmetric->length() - 50);
|
|
printf("8\n");
|
|
Traverse(right_deep_slice, left_deep_slice);
|
|
printf("9\n");
|
|
FlattenString(left_asymmetric);
|
|
printf("10\n");
|
|
Traverse(flat, left_asymmetric);
|
|
printf("11\n");
|
|
FlattenString(right_asymmetric);
|
|
printf("12\n");
|
|
Traverse(flat, right_asymmetric);
|
|
printf("14\n");
|
|
FlattenString(symmetric);
|
|
printf("15\n");
|
|
Traverse(flat, symmetric);
|
|
printf("16\n");
|
|
FlattenString(left_deep_asymmetric);
|
|
printf("18\n");
|
|
}
|
|
|
|
|
|
static Handle<String> SliceOf(Handle<String> underlying) {
|
|
int start = gen() % underlying->length();
|
|
int end = start + gen() % (underlying->length() - start);
|
|
return Factory::NewStringSlice(underlying,
|
|
start,
|
|
end);
|
|
}
|
|
|
|
|
|
static Handle<String> ConstructSliceTree(
|
|
Handle<String> building_blocks[NUMBER_OF_BUILDING_BLOCKS],
|
|
int from,
|
|
int to) {
|
|
CHECK(to > from);
|
|
if (to - from <= 1)
|
|
return SliceOf(building_blocks[from % NUMBER_OF_BUILDING_BLOCKS]);
|
|
if (to - from == 2) {
|
|
Handle<String> lhs = building_blocks[from % NUMBER_OF_BUILDING_BLOCKS];
|
|
if (gen() % 2 == 0)
|
|
lhs = SliceOf(lhs);
|
|
Handle<String> rhs = building_blocks[(from+1) % NUMBER_OF_BUILDING_BLOCKS];
|
|
if (gen() % 2 == 0)
|
|
rhs = SliceOf(rhs);
|
|
return Factory::NewConsString(lhs, rhs);
|
|
}
|
|
Handle<String> part1 =
|
|
ConstructBalancedHelper(building_blocks, from, from + ((to - from) / 2));
|
|
Handle<String> part2 =
|
|
ConstructBalancedHelper(building_blocks, from + ((to - from) / 2), to);
|
|
Handle<String> branch = Factory::NewConsString(part1, part2);
|
|
if (gen() % 2 == 0)
|
|
return branch;
|
|
return(SliceOf(branch));
|
|
}
|
|
|
|
|
|
TEST(Slice) {
|
|
printf("TestSlice\n");
|
|
InitializeVM();
|
|
v8::HandleScope scope;
|
|
Handle<String> building_blocks[NUMBER_OF_BUILDING_BLOCKS];
|
|
ZoneScope zone(DELETE_ON_EXIT);
|
|
InitializeBuildingBlocks(building_blocks);
|
|
|
|
seed = 42;
|
|
Handle<String> slice_tree =
|
|
ConstructSliceTree(building_blocks, 0, DEEP_DEPTH);
|
|
seed = 42;
|
|
Handle<String> flat_slice_tree =
|
|
ConstructSliceTree(building_blocks, 0, DEEP_DEPTH);
|
|
FlattenString(flat_slice_tree);
|
|
Traverse(flat_slice_tree, slice_tree);
|
|
}
|
|
|
|
static const int DEEP_ASCII_DEPTH = 100000;
|
|
|
|
|
|
TEST(DeepAscii) {
|
|
printf("TestDeepAscii\n");
|
|
InitializeVM();
|
|
v8::HandleScope scope;
|
|
|
|
char* foo = NewArray<char>(DEEP_ASCII_DEPTH);
|
|
for (int i = 0; i < DEEP_ASCII_DEPTH; i++) {
|
|
foo[i] = "foo "[i % 4];
|
|
}
|
|
Handle<String> string =
|
|
Factory::NewStringFromAscii(Vector<const char>(foo, DEEP_ASCII_DEPTH));
|
|
Handle<String> foo_string = Factory::NewStringFromAscii(CStrVector("foo"));
|
|
for (int i = 0; i < DEEP_ASCII_DEPTH; i += 10) {
|
|
string = Factory::NewConsString(string, foo_string);
|
|
}
|
|
Handle<String> flat_string = Factory::NewConsString(string, foo_string);
|
|
FlattenString(flat_string);
|
|
|
|
for (int i = 0; i < 500; i++) {
|
|
TraverseFirst(flat_string, string, DEEP_ASCII_DEPTH);
|
|
}
|
|
DeleteArray<char>(foo);
|
|
}
|
|
|
|
|
|
TEST(Utf8Conversion) {
|
|
// Smoke test for converting strings to utf-8.
|
|
InitializeVM();
|
|
v8::HandleScope handle_scope;
|
|
// A simple ascii string
|
|
const char* ascii_string = "abcdef12345";
|
|
int len = v8::String::New(ascii_string, strlen(ascii_string))->Utf8Length();
|
|
CHECK_EQ(strlen(ascii_string), len);
|
|
// A mixed ascii and non-ascii string
|
|
// U+02E4 -> CB A4
|
|
// U+0064 -> 64
|
|
// U+12E4 -> E1 8B A4
|
|
// U+0030 -> 30
|
|
// U+3045 -> E3 81 85
|
|
const uint16_t mixed_string[] = {0x02E4, 0x0064, 0x12E4, 0x0030, 0x3045};
|
|
// The characters we expect to be output
|
|
const unsigned char as_utf8[11] = {0xCB, 0xA4, 0x64, 0xE1, 0x8B, 0xA4, 0x30,
|
|
0xE3, 0x81, 0x85, 0x00};
|
|
// The number of bytes expected to be written for each length
|
|
const int lengths[12] = {0, 0, 2, 3, 3, 3, 6, 7, 7, 7, 10, 11};
|
|
v8::Handle<v8::String> mixed = v8::String::New(mixed_string, 5);
|
|
CHECK_EQ(10, mixed->Utf8Length());
|
|
// Try encoding the string with all capacities
|
|
char buffer[11];
|
|
const char kNoChar = static_cast<char>(-1);
|
|
for (int i = 0; i <= 11; i++) {
|
|
// Clear the buffer before reusing it
|
|
for (int j = 0; j < 11; j++)
|
|
buffer[j] = kNoChar;
|
|
int written = mixed->WriteUtf8(buffer, i);
|
|
CHECK_EQ(lengths[i], written);
|
|
// Check that the contents are correct
|
|
for (int j = 0; j < lengths[i]; j++)
|
|
CHECK_EQ(as_utf8[j], static_cast<unsigned char>(buffer[j]));
|
|
// Check that the rest of the buffer hasn't been touched
|
|
for (int j = lengths[i]; j < 11; j++)
|
|
CHECK_EQ(kNoChar, buffer[j]);
|
|
}
|
|
}
|
|
|
|
|
|
class TwoByteResource: public v8::String::ExternalStringResource {
|
|
public:
|
|
explicit TwoByteResource(const uint16_t* data, size_t length)
|
|
: data_(data), length_(length) { }
|
|
virtual ~TwoByteResource() { }
|
|
|
|
const uint16_t* data() const { return data_; }
|
|
size_t length() const { return length_; }
|
|
|
|
private:
|
|
const uint16_t* data_;
|
|
size_t length_;
|
|
};
|
|
|
|
|
|
TEST(ExternalCrBug9746) {
|
|
InitializeVM();
|
|
v8::HandleScope handle_scope;
|
|
|
|
// This set of tests verifies that the workaround for Chromium bug 9746
|
|
// works correctly. In certain situations the external resource of a symbol
|
|
// is collected while the symbol is still part of the symbol table.
|
|
static uint16_t two_byte_data[] = {
|
|
't', 'w', 'o', '-', 'b', 'y', 't', 'e', ' ', 'd', 'a', 't', 'a'
|
|
};
|
|
static size_t two_byte_length =
|
|
sizeof(two_byte_data) / sizeof(two_byte_data[0]);
|
|
static const char* one_byte_data = "two-byte data";
|
|
|
|
// Allocate an external string resource and external string.
|
|
TwoByteResource* resource = new TwoByteResource(two_byte_data,
|
|
two_byte_length);
|
|
Handle<String> string = Factory::NewExternalStringFromTwoByte(resource);
|
|
Vector<const char> one_byte_vec = CStrVector(one_byte_data);
|
|
Handle<String> compare = Factory::NewStringFromAscii(one_byte_vec);
|
|
|
|
// Verify the correct behaviour before "collecting" the external resource.
|
|
CHECK(string->IsEqualTo(one_byte_vec));
|
|
CHECK(string->Equals(*compare));
|
|
|
|
// "Collect" the external resource manually by setting the external resource
|
|
// pointer to NULL. Then redo the comparisons, they should not match AND
|
|
// not crash.
|
|
Handle<ExternalTwoByteString> external(ExternalTwoByteString::cast(*string));
|
|
external->set_resource(NULL);
|
|
CHECK_EQ(false, string->IsEqualTo(one_byte_vec));
|
|
#if !defined(DEBUG)
|
|
// These tests only work in non-debug as there are ASSERTs in the code that
|
|
// do prevent the ability to even get into the broken code when running the
|
|
// debug version of V8.
|
|
CHECK_EQ(false, string->Equals(*compare));
|
|
CHECK_EQ(false, compare->Equals(*string));
|
|
CHECK_EQ(false, string->Equals(Heap::empty_string()));
|
|
#endif // !defined(DEBUG)
|
|
}
|