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dart / sdk.git / 784722f2eddb5d3be00183fb7cb7787109cd07b5 / . / runtime / vm / object_test.cc
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// Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.
#include "platform/assert.h"
#include "vm/assembler.h"
#include "vm/bigint_operations.h"
#include "vm/class_finalizer.h"
#include "vm/isolate.h"
#include "vm/object.h"
#include "vm/object_store.h"
#include "vm/simulator.h"
#include "vm/symbols.h"
#include "vm/unit_test.h"
namespace dart {
TEST_CASE(Class) {
// Allocate the class first.
const String& class_name = String::Handle(Symbols::New("MyClass"));
const Script& script = Script::Handle();
const Class& cls = Class::Handle(
Class::New(class_name, script, Scanner::kDummyTokenIndex));
// Class has no fields.
cls.SetFields(Object::empty_array());
// Create and populate the function arrays.
const Array& functions = Array::Handle(Array::New(6));
Function& function = Function::Handle();
String& function_name = String::Handle();
function_name = Symbols::New("foo");
function = Function::New(
function_name, RawFunction::kRegularFunction,
false, false, false, false, cls, 0);
functions.SetAt(0, function);
function_name = Symbols::New("bar");
function = Function::New(
function_name, RawFunction::kRegularFunction,
false, false, false, false, cls, 0);
const int kNumFixedParameters = 2;
const int kNumOptionalParameters = 3;
const bool kAreOptionalPositional = true;
function.set_num_fixed_parameters(kNumFixedParameters);
function.SetNumOptionalParameters(kNumOptionalParameters,
kAreOptionalPositional);
functions.SetAt(1, function);
function_name = Symbols::New("baz");
function = Function::New(
function_name, RawFunction::kRegularFunction,
false, false, false, false, cls, 0);
functions.SetAt(2, function);
function_name = Symbols::New("Foo");
function = Function::New(
function_name, RawFunction::kRegularFunction,
true, false, false, false, cls, 0);
functions.SetAt(3, function);
function_name = Symbols::New("Bar");
function = Function::New(
function_name, RawFunction::kRegularFunction,
true, false, false, false, cls, 0);
functions.SetAt(4, function);
function_name = Symbols::New("BaZ");
function = Function::New(
function_name, RawFunction::kRegularFunction,
true, false, false, false, cls, 0);
functions.SetAt(5, function);
// Setup the functions in the class.
cls.SetFunctions(functions);
function_name = String::New("Foo");
function = cls.LookupDynamicFunction(function_name);
EXPECT(function.IsNull());
function = cls.LookupStaticFunction(function_name);
EXPECT(!function.IsNull());
EXPECT(function_name.Equals(String::Handle(function.name())));
EXPECT_EQ(cls.raw(), function.Owner());
EXPECT(function.is_static());
function_name = String::New("baz");
function = cls.LookupDynamicFunction(function_name);
EXPECT(!function.IsNull());
EXPECT(function_name.Equals(String::Handle(function.name())));
EXPECT_EQ(cls.raw(), function.Owner());
EXPECT(!function.is_static());
function = cls.LookupStaticFunction(function_name);
EXPECT(function.IsNull());
function_name = String::New("foo");
function = cls.LookupDynamicFunction(function_name);
EXPECT(!function.IsNull());
EXPECT_EQ(0, function.num_fixed_parameters());
EXPECT(!function.HasOptionalParameters());
function_name = String::New("bar");
function = cls.LookupDynamicFunction(function_name);
EXPECT(!function.IsNull());
EXPECT_EQ(kNumFixedParameters, function.num_fixed_parameters());
EXPECT_EQ(kNumOptionalParameters, function.NumOptionalParameters());
const Array& interfaces = Array::Handle(Array::New(2));
Class& interface = Class::Handle();
String& interface_name = String::Handle();
interface_name = Symbols::New("Harley");
interface = Class::New(interface_name, script, Scanner::kDummyTokenIndex);
interfaces.SetAt(0, Type::Handle(Type::NewNonParameterizedType(interface)));
interface_name = Symbols::New("Norton");
interface = Class::New(interface_name, script, Scanner::kDummyTokenIndex);
interfaces.SetAt(1, Type::Handle(Type::NewNonParameterizedType(interface)));
cls.set_interfaces(interfaces);
cls.Finalize();
}
TEST_CASE(TypeArguments) {
const Type& type1 = Type::Handle(Type::Double());
const Type& type2 = Type::Handle(Type::StringType());
const TypeArguments& type_arguments1 = TypeArguments::Handle(
TypeArguments::New(2));
type_arguments1.SetTypeAt(0, type1);
type_arguments1.SetTypeAt(1, type2);
const TypeArguments& type_arguments2 = TypeArguments::Handle(
TypeArguments::New(2));
type_arguments2.SetTypeAt(0, type1);
type_arguments2.SetTypeAt(1, type2);
EXPECT_NE(type_arguments1.raw(), type_arguments2.raw());
OS::Print("1: %s\n", type_arguments1.ToCString());
OS::Print("2: %s\n", type_arguments2.ToCString());
ASSERT(type_arguments1.Equals(type_arguments2));
TypeArguments& type_arguments3 = TypeArguments::Handle();
type_arguments1.Canonicalize();
type_arguments3 ^= type_arguments2.Canonicalize();
EXPECT_EQ(type_arguments1.raw(), type_arguments3.raw());
}
TEST_CASE(TokenStream) {
String& source = String::Handle(String::New("= ( 9 , ."));
String& private_key = String::Handle(String::New(""));
Scanner scanner(source, private_key);
const Scanner::GrowableTokenStream& ts = scanner.GetStream();
EXPECT_EQ(6, ts.length());
EXPECT_EQ(Token::kLPAREN, ts[1].kind);
const TokenStream& token_stream = TokenStream::Handle(
TokenStream::New(ts, private_key));
TokenStream::Iterator iterator(token_stream, 0);
// EXPECT_EQ(6, token_stream.Length());
iterator.Advance(); // Advance to '(' token.
EXPECT_EQ(Token::kLPAREN, iterator.CurrentTokenKind());
iterator.Advance();
iterator.Advance();
iterator.Advance(); // Advance to '.' token.
EXPECT_EQ(Token::kPERIOD, iterator.CurrentTokenKind());
iterator.Advance(); // Advance to end of stream.
EXPECT_EQ(Token::kEOS, iterator.CurrentTokenKind());
}
TEST_CASE(InstanceClass) {
// Allocate the class first.
String& class_name = String::Handle(Symbols::New("EmptyClass"));
Script& script = Script::Handle();
const Class& empty_class =
Class::Handle(Class::New(class_name, script, Scanner::kDummyTokenIndex));
// No functions and no super class for the EmptyClass.
empty_class.SetFields(Object::empty_array());
empty_class.Finalize();
EXPECT_EQ(kObjectAlignment, empty_class.instance_size());
Instance& instance = Instance::Handle(Instance::New(empty_class));
EXPECT_EQ(empty_class.raw(), instance.clazz());
class_name = Symbols::New("OneFieldClass");
const Class& one_field_class =
Class::Handle(Class::New(class_name, script, Scanner::kDummyTokenIndex));
// No functions and no super class for the OneFieldClass.
const Array& one_fields = Array::Handle(Array::New(1));
const String& field_name = String::Handle(Symbols::New("the_field"));
const Field& field = Field::Handle(
Field::New(field_name, false, false, false, one_field_class, 0));
one_fields.SetAt(0, field);
one_field_class.SetFields(one_fields);
one_field_class.Finalize();
intptr_t header_size = sizeof(RawObject);
EXPECT_EQ(Utils::RoundUp((header_size + (1 * kWordSize)), kObjectAlignment),
one_field_class.instance_size());
EXPECT_EQ(header_size, field.Offset());
EXPECT(!one_field_class.is_implemented());
one_field_class.set_is_implemented();
EXPECT(one_field_class.is_implemented());
}
TEST_CASE(Smi) {
const Smi& smi = Smi::Handle(Smi::New(5));
Object& smi_object = Object::Handle(smi.raw());
EXPECT(smi.IsSmi());
EXPECT(smi_object.IsSmi());
EXPECT_EQ(5, smi.Value());
const Object& object = Object::Handle();
EXPECT(!object.IsSmi());
smi_object = Object::null();
EXPECT(!smi_object.IsSmi());
EXPECT(smi.Equals(Smi::Handle(Smi::New(5))));
EXPECT(!smi.Equals(Smi::Handle(Smi::New(6))));
EXPECT(smi.Equals(smi));
EXPECT(!smi.Equals(Smi::Handle()));
EXPECT(Smi::IsValid(0));
EXPECT(Smi::IsValid(-15));
// Upper two bits must be either 00 or 11.
#if defined(ARCH_IS_64_BIT)
EXPECT(!Smi::IsValid(kMaxInt64));
EXPECT(Smi::IsValid(0x3FFFFFFFFFFFFFFF));
EXPECT(Smi::IsValid(0xFFFFFFFFFFFFFFFF));
#else
EXPECT(!Smi::IsValid(kMaxInt32));
EXPECT(Smi::IsValid(0x3FFFFFFF));
EXPECT(Smi::IsValid(0xFFFFFFFF));
#endif
EXPECT_EQ(5, smi.AsInt64Value());
EXPECT_EQ(5.0, smi.AsDoubleValue());
Smi& a = Smi::Handle(Smi::New(5));
Smi& b = Smi::Handle(Smi::New(3));
EXPECT_EQ(1, a.CompareWith(b));
EXPECT_EQ(-1, b.CompareWith(a));
EXPECT_EQ(0, a.CompareWith(a));
Smi& c = Smi::Handle(Smi::New(-1));
Mint& mint1 = Mint::Handle(
Mint::New(DART_2PART_UINT64_C(0x7FFFFFFF, 100)));
Mint& mint2 = Mint::Handle(
Mint::New(-DART_2PART_UINT64_C(0x7FFFFFFF, 100)));
EXPECT_EQ(-1, a.CompareWith(mint1));
EXPECT_EQ(1, a.CompareWith(mint2));
EXPECT_EQ(-1, c.CompareWith(mint1));
EXPECT_EQ(1, c.CompareWith(mint2));
Bigint& big1 = Bigint::Handle(BigintOperations::NewFromCString(
"10000000000000000000"));
Bigint& big2 = Bigint::Handle(BigintOperations::NewFromCString(
"-10000000000000000000"));
EXPECT_EQ(-1, a.CompareWith(big1));
EXPECT_EQ(1, a.CompareWith(big2));
EXPECT_EQ(-1, c.CompareWith(big1));
EXPECT_EQ(1, c.CompareWith(big2));
}
TEST_CASE(StringCompareTo) {
const String& abcd = String::Handle(String::New("abcd"));
const String& abce = String::Handle(String::New("abce"));
EXPECT_EQ(0, abcd.CompareTo(abcd));
EXPECT_EQ(0, abce.CompareTo(abce));
EXPECT(abcd.CompareTo(abce) < 0);
EXPECT(abce.CompareTo(abcd) > 0);
const int kMonkeyLen = 4;
const uint8_t monkey_utf8[kMonkeyLen] = { 0xf0, 0x9f, 0x90, 0xb5 };
const String& monkey_face =
String::Handle(String::FromUTF8(monkey_utf8, kMonkeyLen));
const int kDogLen = 4;
// 0x1f436 DOG FACE.
const uint8_t dog_utf8[kDogLen] = { 0xf0, 0x9f, 0x90, 0xb6 };
const String& dog_face =
String::Handle(String::FromUTF8(dog_utf8, kDogLen));
EXPECT_EQ(0, monkey_face.CompareTo(monkey_face));
EXPECT_EQ(0, dog_face.CompareTo(dog_face));
EXPECT(monkey_face.CompareTo(dog_face) < 0);
EXPECT(dog_face.CompareTo(monkey_face) > 0);
const int kDominoLen = 4;
// 0x1f036 DOMINO TILE HORIZONTAL-00-05.
const uint8_t domino_utf8[kDominoLen] = { 0xf0, 0x9f, 0x80, 0xb6 };
const String& domino =
String::Handle(String::FromUTF8(domino_utf8, kDominoLen));
EXPECT_EQ(0, domino.CompareTo(domino));
EXPECT(domino.CompareTo(dog_face) < 0);
EXPECT(domino.CompareTo(monkey_face) < 0);
EXPECT(dog_face.CompareTo(domino) > 0);
EXPECT(monkey_face.CompareTo(domino) > 0);
EXPECT(abcd.CompareTo(monkey_face) < 0);
EXPECT(abce.CompareTo(monkey_face) < 0);
EXPECT(abcd.CompareTo(domino) < 0);
EXPECT(abce.CompareTo(domino) < 0);
EXPECT(domino.CompareTo(abcd) > 0);
EXPECT(domino.CompareTo(abcd) > 0);
EXPECT(monkey_face.CompareTo(abce) > 0);
EXPECT(monkey_face.CompareTo(abce) > 0);
}
TEST_CASE(Mint) {
// On 64-bit architectures a Smi is stored in a 64 bit word. A Midint cannot
// be allocated if it does fit into a Smi.
#if !defined(ARCH_IS_64_BIT)
{ Mint& med = Mint::Handle();
EXPECT(med.IsNull());
int64_t v = DART_2PART_UINT64_C(1, 0);
med = Mint::New(v);
EXPECT_EQ(v, med.value());
const String& smi_str = String::Handle(String::New("1"));
const String& mint1_str = String::Handle(String::New("2147419168"));
const String& mint2_str = String::Handle(String::New("-2147419168"));
Integer& i = Integer::Handle(Integer::NewCanonical(smi_str));
EXPECT(i.IsSmi());
i = Integer::NewCanonical(mint1_str);
EXPECT(i.IsMint());
EXPECT(!i.IsZero());
EXPECT(!i.IsNegative());
i = Integer::NewCanonical(mint2_str);
EXPECT(i.IsMint());
EXPECT(!i.IsZero());
EXPECT(i.IsNegative());
}
Integer& i = Integer::Handle(Mint::New(DART_2PART_UINT64_C(1, 0)));
EXPECT(i.IsMint());
EXPECT(!i.IsZero());
EXPECT(!i.IsNegative());
Integer& i1 = Integer::Handle(Mint::New(DART_2PART_UINT64_C(1010, 0)));
Mint& i2 = Mint::Handle(Mint::New(DART_2PART_UINT64_C(1010, 0)));
EXPECT(i1.Equals(i2));
EXPECT(!i.Equals(i1));
int64_t test = DART_2PART_UINT64_C(1010, 0);
EXPECT_EQ(test, i2.value());
Mint& a = Mint::Handle(Mint::New(DART_2PART_UINT64_C(5, 0)));
Mint& b = Mint::Handle(Mint::New(DART_2PART_UINT64_C(3, 0)));
EXPECT_EQ(1, a.CompareWith(b));
EXPECT_EQ(-1, b.CompareWith(a));
EXPECT_EQ(0, a.CompareWith(a));
Mint& c = Mint::Handle(Mint::New(-DART_2PART_UINT64_C(3, 0)));
Smi& smi1 = Smi::Handle(Smi::New(4));
Smi& smi2 = Smi::Handle(Smi::New(-4));
EXPECT_EQ(1, a.CompareWith(smi1));
EXPECT_EQ(1, a.CompareWith(smi2));
EXPECT_EQ(-1, c.CompareWith(smi1));
EXPECT_EQ(-1, c.CompareWith(smi2));
Bigint& big1 = Bigint::Handle(BigintOperations::NewFromCString(
"10000000000000000000"));
Bigint& big2 = Bigint::Handle(BigintOperations::NewFromCString(
"-10000000000000000000"));
EXPECT_EQ(-1, a.CompareWith(big1));
EXPECT_EQ(1, a.CompareWith(big2));
EXPECT_EQ(-1, c.CompareWith(big1));
EXPECT_EQ(1, c.CompareWith(big2));
int64_t mint_value = DART_2PART_UINT64_C(0x7FFFFFFF, 100);
Mint& mint1 = Mint::Handle(Mint::NewCanonical(mint_value));
Mint& mint2 = Mint::Handle(Mint::NewCanonical(mint_value));
EXPECT_EQ(mint1.value(), mint_value);
EXPECT_EQ(mint2.value(), mint_value);
EXPECT_EQ(mint1.raw(), mint2.raw());
#endif
}
TEST_CASE(Double) {
{
const double dbl_const = 5.0;
const Double& dbl = Double::Handle(Double::New(dbl_const));
Object& dbl_object = Object::Handle(dbl.raw());
EXPECT(dbl.IsDouble());
EXPECT(dbl_object.IsDouble());
EXPECT_EQ(dbl_const, dbl.value());
}
{
const double dbl_const = -5.0;
const Double& dbl = Double::Handle(Double::New(dbl_const));
Object& dbl_object = Object::Handle(dbl.raw());
EXPECT(dbl.IsDouble());
EXPECT(dbl_object.IsDouble());
EXPECT_EQ(dbl_const, dbl.value());
}
{
const double dbl_const = 0.0;
const Double& dbl = Double::Handle(Double::New(dbl_const));
Object& dbl_object = Object::Handle(dbl.raw());
EXPECT(dbl.IsDouble());
EXPECT(dbl_object.IsDouble());
EXPECT_EQ(dbl_const, dbl.value());
}
{
const double dbl_const = 5.0;
const String& dbl_str = String::Handle(String::New("5.0"));
const Double& dbl1 = Double::Handle(Double::NewCanonical(dbl_const));
const Double& dbl2 = Double::Handle(Double::NewCanonical(dbl_const));
const Double& dbl3 = Double::Handle(Double::NewCanonical(dbl_str));
EXPECT_EQ(dbl_const, dbl1.value());
EXPECT_EQ(dbl_const, dbl2.value());
EXPECT_EQ(dbl_const, dbl3.value());
EXPECT_EQ(dbl1.raw(), dbl2.raw());
EXPECT_EQ(dbl1.raw(), dbl3.raw());
}
{
const double dbl_const = 2.0;
const Double& dbl1 = Double::Handle(Double::New(dbl_const));
const Double& dbl2 = Double::Handle(Double::New(dbl_const));
EXPECT(dbl1.Equals(dbl2));
const Double& dbl3 = Double::Handle(Double::New(3.3));
EXPECT(!dbl1.Equals(dbl3));
EXPECT(!dbl1.Equals(Smi::Handle(Smi::New(3))));
EXPECT(!dbl1.Equals(Double::Handle()));
}
{
const String& dbl_str0 = String::Handle(String::New("bla"));
const Double& dbl0 = Double::Handle(Double::New(dbl_str0));
EXPECT(dbl0.IsNull());
const String& dbl_str1 = String::Handle(String::New("2.0"));
const Double& dbl1 = Double::Handle(Double::New(dbl_str1));
EXPECT_EQ(2.0, dbl1.value());
// Disallow legacy form.
const String& dbl_str2 = String::Handle(String::New("2.0d"));
const Double& dbl2 = Double::Handle(Double::New(dbl_str2));
EXPECT(dbl2.IsNull());
}
}
TEST_CASE(Bigint) {
Bigint& b = Bigint::Handle();
EXPECT(b.IsNull());
const char* cstr = "18446744073709551615000";
const String& test = String::Handle(String::New(cstr));
b = Bigint::NewCanonical(test);
const char* str = b.ToCString();
EXPECT_STREQ(cstr, str);
int64_t t64 = DART_2PART_UINT64_C(1, 0);
Bigint& big = Bigint::Handle();
big = BigintOperations::NewFromInt64(t64);
EXPECT_EQ(t64, big.AsInt64Value());
big = BigintOperations::NewFromCString("10000000000000000000");
EXPECT_EQ(1e19, big.AsDoubleValue());
Bigint& big1 = Bigint::Handle(BigintOperations::NewFromCString(
"100000000000000000000"));
Bigint& big2 = Bigint::Handle(BigintOperations::NewFromCString(
"100000000000000000010"));
Bigint& big3 = Bigint::Handle(BigintOperations::NewFromCString(
"-10000000000000000000"));
EXPECT_EQ(0, big1.CompareWith(big1));
EXPECT_EQ(-1, big1.CompareWith(big2));
EXPECT_EQ(1, big2.CompareWith(big1));
EXPECT_EQ(1, big1.CompareWith(big3));
EXPECT_EQ(-1, big3.CompareWith(big1));
Smi& smi1 = Smi::Handle(Smi::New(5));
Smi& smi2 = Smi::Handle(Smi::New(-2));
EXPECT_EQ(-1, smi1.CompareWith(big1));
EXPECT_EQ(-1, smi2.CompareWith(big1));
EXPECT_EQ(1, smi1.CompareWith(big3));
EXPECT_EQ(1, smi2.CompareWith(big3));
}
TEST_CASE(Integer) {
Integer& i = Integer::Handle();
i = Integer::NewCanonical(String::Handle(String::New("12")));
EXPECT(i.IsSmi());
i = Integer::NewCanonical(String::Handle(String::New("-120")));
EXPECT(i.IsSmi());
i = Integer::NewCanonical(String::Handle(String::New("0")));
EXPECT(i.IsSmi());
i = Integer::NewCanonical(
String::Handle(String::New("12345678901234567890")));
EXPECT(i.IsBigint());
i = Integer::NewCanonical(
String::Handle(String::New("-12345678901234567890111222")));
EXPECT(i.IsBigint());
}
TEST_CASE(String) {
const char* kHello = "Hello World!";
int32_t hello_len = strlen(kHello);
const String& str = String::Handle(String::New(kHello));
EXPECT(str.IsInstance());
EXPECT(str.IsString());
EXPECT(str.IsOneByteString());
EXPECT(!str.IsTwoByteString());
EXPECT(!str.IsNumber());
EXPECT_EQ(hello_len, str.Length());
EXPECT_EQ('H', str.CharAt(0));
EXPECT_EQ('e', str.CharAt(1));
EXPECT_EQ('l', str.CharAt(2));
EXPECT_EQ('l', str.CharAt(3));
EXPECT_EQ('o', str.CharAt(4));
EXPECT_EQ(' ', str.CharAt(5));
EXPECT_EQ('W', str.CharAt(6));
EXPECT_EQ('o', str.CharAt(7));
EXPECT_EQ('r', str.CharAt(8));
EXPECT_EQ('l', str.CharAt(9));
EXPECT_EQ('d', str.CharAt(10));
EXPECT_EQ('!', str.CharAt(11));
const uint8_t* motto =
reinterpret_cast<const uint8_t*>("Dart's bescht wos je hets gits");
const String& str2 = String::Handle(String::FromUTF8(motto+7, 4));
EXPECT_EQ(4, str2.Length());
EXPECT_EQ('b', str2.CharAt(0));
EXPECT_EQ('e', str2.CharAt(1));
EXPECT_EQ('s', str2.CharAt(2));
EXPECT_EQ('c', str2.CharAt(3));
const String& str3 = String::Handle(String::New(kHello));
EXPECT(str.Equals(str));
EXPECT_EQ(str.Hash(), str.Hash());
EXPECT(!str.Equals(str2));
EXPECT(str.Equals(str3));
EXPECT_EQ(str.Hash(), str3.Hash());
EXPECT(str3.Equals(str));
const String& str4 = String::Handle(String::New("foo"));
const String& str5 = String::Handle(String::New("bar"));
const String& str6 = String::Handle(String::Concat(str4, str5));
const String& str7 = String::Handle(String::New("foobar"));
EXPECT(str6.Equals(str7));
EXPECT(!str6.Equals(Smi::Handle(Smi::New(4))));
const String& empty1 = String::Handle(String::New(""));
const String& empty2 = String::Handle(String::New(""));
EXPECT(empty1.Equals(empty2, 0, 0));
const intptr_t kCharsLen = 8;
const uint8_t chars[kCharsLen] = { 1, 2, 127, 64, 92, 0, 55, 55 };
const String& str8 = String::Handle(String::FromUTF8(chars, kCharsLen));
EXPECT_EQ(kCharsLen, str8.Length());
EXPECT_EQ(1, str8.CharAt(0));
EXPECT_EQ(127, str8.CharAt(2));
EXPECT_EQ(64, str8.CharAt(3));
EXPECT_EQ(0, str8.CharAt(5));
EXPECT_EQ(55, str8.CharAt(6));
EXPECT_EQ(55, str8.CharAt(7));
const intptr_t kCharsIndex = 3;
const String& sub1 = String::Handle(String::SubString(str8, kCharsIndex));
EXPECT_EQ((kCharsLen - kCharsIndex), sub1.Length());
EXPECT_EQ(64, sub1.CharAt(0));
EXPECT_EQ(92, sub1.CharAt(1));
EXPECT_EQ(0, sub1.CharAt(2));
EXPECT_EQ(55, sub1.CharAt(3));
EXPECT_EQ(55, sub1.CharAt(4));
const intptr_t kWideCharsLen = 7;
uint16_t wide_chars[kWideCharsLen] = { 'H', 'e', 'l', 'l', 'o', 256, '!' };
const String& two_str = String::Handle(String::FromUTF16(wide_chars,
kWideCharsLen));
EXPECT(two_str.IsInstance());
EXPECT(two_str.IsString());
EXPECT(two_str.IsTwoByteString());
EXPECT(!two_str.IsOneByteString());
EXPECT_EQ(kWideCharsLen, two_str.Length());
EXPECT_EQ('H', two_str.CharAt(0));
EXPECT_EQ(256, two_str.CharAt(5));
const intptr_t kWideCharsIndex = 3;
const String& sub2 = String::Handle(String::SubString(two_str, kCharsIndex));
EXPECT_EQ((kWideCharsLen - kWideCharsIndex), sub2.Length());
EXPECT_EQ('l', sub2.CharAt(0));
EXPECT_EQ('o', sub2.CharAt(1));
EXPECT_EQ(256, sub2.CharAt(2));
EXPECT_EQ('!', sub2.CharAt(3));
{
const String& str1 = String::Handle(String::New("My.create"));
const String& str2 = String::Handle(String::New("My"));
const String& str3 = String::Handle(String::New("create"));
EXPECT_EQ(true, str1.StartsWith(str2));
EXPECT_EQ(false, str1.StartsWith(str3));
}
const int32_t four_chars[] = { 'C', 0xFF, 'h', 0xFFFF, 'a', 0x10FFFF, 'r' };
const String& four_str = String::Handle(String::FromUTF32(four_chars, 7));
EXPECT_EQ(four_str.Hash(), four_str.Hash());
EXPECT(four_str.IsTwoByteString());
EXPECT(!four_str.IsOneByteString());
EXPECT_EQ(8, four_str.Length());
EXPECT_EQ('C', four_str.CharAt(0));
EXPECT_EQ(0xFF, four_str.CharAt(1));
EXPECT_EQ('h', four_str.CharAt(2));
EXPECT_EQ(0xFFFF, four_str.CharAt(3));
EXPECT_EQ('a', four_str.CharAt(4));
EXPECT_EQ(0xDBFF, four_str.CharAt(5));
EXPECT_EQ(0xDFFF, four_str.CharAt(6));
EXPECT_EQ('r', four_str.CharAt(7));
// Create a 1-byte string from an array of 2-byte elements.
{
const uint16_t char16[] = { 0x00, 0x7F, 0xFF };
const String& str8 = String::Handle(String::FromUTF16(char16, 3));
EXPECT(str8.IsOneByteString());
EXPECT(!str8.IsTwoByteString());
EXPECT_EQ(0x00, str8.CharAt(0));
EXPECT_EQ(0x7F, str8.CharAt(1));
EXPECT_EQ(0xFF, str8.CharAt(2));
}
// Create a 1-byte string from an array of 4-byte elements.
{
const int32_t char32[] = { 0x00, 0x1F, 0x7F };
const String& str8 = String::Handle(String::FromUTF32(char32, 3));
EXPECT(str8.IsOneByteString());
EXPECT(!str8.IsTwoByteString());
EXPECT_EQ(0x00, str8.CharAt(0));
EXPECT_EQ(0x1F, str8.CharAt(1));
EXPECT_EQ(0x7F, str8.CharAt(2));
}
// Create a 2-byte string from an array of 4-byte elements.
{
const int32_t char32[] = { 0, 0x7FFF, 0xFFFF };
const String& str16 = String::Handle(String::FromUTF32(char32, 3));
EXPECT(!str16.IsOneByteString());
EXPECT(str16.IsTwoByteString());
EXPECT_EQ(0x0000, str16.CharAt(0));
EXPECT_EQ(0x7FFF, str16.CharAt(1));
EXPECT_EQ(0xFFFF, str16.CharAt(2));
}
}
TEST_CASE(StringFormat) {
const char* hello_str = "Hello World!";
const String& str =
String::Handle(String::NewFormatted("Hello %s!", "World"));
EXPECT(str.IsInstance());
EXPECT(str.IsString());
EXPECT(str.IsOneByteString());
EXPECT(!str.IsTwoByteString());
EXPECT(!str.IsNumber());
EXPECT(str.Equals(hello_str));
}
TEST_CASE(StringConcat) {
// Create strings from concatenated 1-byte empty strings.
{
const String& empty1 = String::Handle(String::New(""));
EXPECT(empty1.IsOneByteString());
EXPECT_EQ(0, empty1.Length());
const String& empty2 = String::Handle(String::New(""));
EXPECT(empty2.IsOneByteString());
EXPECT_EQ(0, empty2.Length());
// Concat
const String& empty3 = String::Handle(String::Concat(empty1, empty2));
EXPECT(empty3.IsOneByteString());
EXPECT_EQ(0, empty3.Length());
// ConcatAll
const Array& array1 = Array::Handle(Array::New(0));
EXPECT_EQ(0, array1.Length());
const String& empty4 = String::Handle(String::ConcatAll(array1));
EXPECT_EQ(0, empty4.Length());
const Array& array2 = Array::Handle(Array::New(10));
EXPECT_EQ(10, array2.Length());
for (int i = 0; i < array2.Length(); ++i) {
array2.SetAt(i, String::Handle(String::New("")));
}
const String& empty5 = String::Handle(String::ConcatAll(array2));
EXPECT(empty5.IsOneByteString());
EXPECT_EQ(0, empty5.Length());
const Array& array3 = Array::Handle(Array::New(123));
EXPECT_EQ(123, array3.Length());
const String& empty6 = String::Handle(String::New(""));
EXPECT(empty6.IsOneByteString());
EXPECT_EQ(0, empty6.Length());
for (int i = 0; i < array3.Length(); ++i) {
array3.SetAt(i, empty6);
}
const String& empty7 = String::Handle(String::ConcatAll(array3));
EXPECT(empty7.IsOneByteString());
EXPECT_EQ(0, empty7.Length());
}
// Concatenated empty and non-empty 1-byte strings.
{
const String& str1 = String::Handle(String::New(""));
EXPECT_EQ(0, str1.Length());
EXPECT(str1.IsOneByteString());
const String& str2 = String::Handle(String::New("one"));
EXPECT(str2.IsOneByteString());
EXPECT_EQ(3, str2.Length());
// Concat
const String& str3 = String::Handle(String::Concat(str1, str2));
EXPECT(str3.IsOneByteString());
EXPECT_EQ(3, str3.Length());
EXPECT(str3.Equals(str2));
const String& str4 = String::Handle(String::Concat(str2, str1));
EXPECT(str4.IsOneByteString());
EXPECT_EQ(3, str4.Length());
EXPECT(str4.Equals(str2));
// ConcatAll
const Array& array1 = Array::Handle(Array::New(2));
EXPECT_EQ(2, array1.Length());
array1.SetAt(0, str1);
array1.SetAt(1, str2);
const String& str5 = String::Handle(String::ConcatAll(array1));
EXPECT(str5.IsOneByteString());
EXPECT_EQ(3, str5.Length());
EXPECT(str5.Equals(str2));
const Array& array2 = Array::Handle(Array::New(2));
EXPECT_EQ(2, array2.Length());
array2.SetAt(0, str1);
array2.SetAt(1, str2);
const String& str6 = String::Handle(String::ConcatAll(array2));
EXPECT(str6.IsOneByteString());
EXPECT_EQ(3, str6.Length());
EXPECT(str6.Equals(str2));
const Array& array3 = Array::Handle(Array::New(3));
EXPECT_EQ(3, array3.Length());
array3.SetAt(0, str2);
array3.SetAt(1, str1);
array3.SetAt(2, str2);
const String& str7 = String::Handle(String::ConcatAll(array3));
EXPECT(str7.IsOneByteString());
EXPECT_EQ(6, str7.Length());
EXPECT(str7.Equals("oneone"));
EXPECT(!str7.Equals("oneoneone"));
}
// Create a string by concatenating non-empty 1-byte strings.
{
const char* one = "one";
intptr_t one_len = strlen(one);
const String& onestr = String::Handle(String::New(one));
EXPECT(onestr.IsOneByteString());
EXPECT_EQ(one_len, onestr.Length());
const char* three = "three";
intptr_t three_len = strlen(three);
const String& threestr = String::Handle(String::New(three));
EXPECT(threestr.IsOneByteString());
EXPECT_EQ(three_len, threestr.Length());
// Concat
const String& str3 = String::Handle(String::Concat(onestr, threestr));
EXPECT(str3.IsOneByteString());
const char* one_three = "onethree";
EXPECT(str3.Equals(one_three));
const String& str4 = String::Handle(String::Concat(threestr, onestr));
EXPECT(str4.IsOneByteString());
const char* three_one = "threeone";
intptr_t three_one_len = strlen(three_one);
EXPECT_EQ(three_one_len, str4.Length());
EXPECT(str4.Equals(three_one));
// ConcatAll
const Array& array1 = Array::Handle(Array::New(2));
EXPECT_EQ(2, array1.Length());
array1.SetAt(0, onestr);
array1.SetAt(1, threestr);
const String& str5 = String::Handle(String::ConcatAll(array1));
EXPECT(str5.IsOneByteString());
intptr_t one_three_len = strlen(one_three);
EXPECT_EQ(one_three_len, str5.Length());
EXPECT(str5.Equals(one_three));
const Array& array2 = Array::Handle(Array::New(2));
EXPECT_EQ(2, array2.Length());
array2.SetAt(0, threestr);
array2.SetAt(1, onestr);
const String& str6 = String::Handle(String::ConcatAll(array2));
EXPECT(str6.IsOneByteString());
EXPECT_EQ(three_one_len, str6.Length());
EXPECT(str6.Equals(three_one));
const Array& array3 = Array::Handle(Array::New(3));
EXPECT_EQ(3, array3.Length());
array3.SetAt(0, onestr);
array3.SetAt(1, threestr);
array3.SetAt(2, onestr);
const String& str7 = String::Handle(String::ConcatAll(array3));
EXPECT(str7.IsOneByteString());
const char* one_three_one = "onethreeone";
intptr_t one_three_one_len = strlen(one_three_one);
EXPECT_EQ(one_three_one_len, str7.Length());
EXPECT(str7.Equals(one_three_one));
const Array& array4 = Array::Handle(Array::New(3));
EXPECT_EQ(3, array4.Length());
array4.SetAt(0, threestr);
array4.SetAt(1, onestr);
array4.SetAt(2, threestr);
const String& str8 = String::Handle(String::ConcatAll(array4));
EXPECT(str8.IsOneByteString());
const char* three_one_three = "threeonethree";
intptr_t three_one_three_len = strlen(three_one_three);
EXPECT_EQ(three_one_three_len, str8.Length());
EXPECT(str8.Equals(three_one_three));
}
// Concatenate empty and non-empty 2-byte strings.
{
const String& str1 = String::Handle(String::New(""));
EXPECT(str1.IsOneByteString());
EXPECT_EQ(0, str1.Length());
uint16_t two[] = { 0x05E6, 0x05D5, 0x05D5, 0x05D9, 0x05D9 };
intptr_t two_len = sizeof(two) / sizeof(two[0]);
const String& str2 = String::Handle(String::FromUTF16(two, two_len));
EXPECT(str2.IsTwoByteString());
EXPECT_EQ(two_len, str2.Length());
// Concat
const String& str3 = String::Handle(String::Concat(str1, str2));
EXPECT(str3.IsTwoByteString());
EXPECT_EQ(two_len, str3.Length());
EXPECT(str3.Equals(str2));
const String& str4 = String::Handle(String::Concat(str2, str1));
EXPECT(str4.IsTwoByteString());
EXPECT_EQ(two_len, str4.Length());
EXPECT(str4.Equals(str2));
// ConcatAll
const Array& array1 = Array::Handle(Array::New(2));
EXPECT_EQ(2, array1.Length());
array1.SetAt(0, str1);
array1.SetAt(1, str2);
const String& str5 = String::Handle(String::ConcatAll(array1));
EXPECT(str5.IsTwoByteString());
EXPECT_EQ(two_len, str5.Length());
EXPECT(str5.Equals(str2));
const Array& array2 = Array::Handle(Array::New(2));
EXPECT_EQ(2, array2.Length());
array2.SetAt(0, str1);
array2.SetAt(1, str2);
const String& str6 = String::Handle(String::ConcatAll(array2));
EXPECT(str6.IsTwoByteString());
EXPECT_EQ(two_len, str6.Length());
EXPECT(str6.Equals(str2));
const Array& array3 = Array::Handle(Array::New(3));
EXPECT_EQ(3, array3.Length());
array3.SetAt(0, str2);
array3.SetAt(1, str1);
array3.SetAt(2, str2);
const String& str7 = String::Handle(String::ConcatAll(array3));
EXPECT(str7.IsTwoByteString());
EXPECT_EQ(two_len * 2, str7.Length());
uint16_t twotwo[] = { 0x05E6, 0x05D5, 0x05D5, 0x05D9, 0x05D9,
0x05E6, 0x05D5, 0x05D5, 0x05D9, 0x05D9 };
intptr_t twotwo_len = sizeof(twotwo) / sizeof(twotwo[0]);
EXPECT(str7.IsTwoByteString());
EXPECT(str7.Equals(twotwo, twotwo_len));
}
// Concatenating non-empty 2-byte strings.
{
const uint16_t one[] = { 0x05D0, 0x05D9, 0x05D9, 0x05DF };
intptr_t one_len = sizeof(one) / sizeof(one[0]);
const String& str1 = String::Handle(String::FromUTF16(one, one_len));
EXPECT(str1.IsTwoByteString());
EXPECT_EQ(one_len, str1.Length());
const uint16_t two[] = { 0x05E6, 0x05D5, 0x05D5, 0x05D9, 0x05D9 };
intptr_t two_len = sizeof(two) / sizeof(two[0]);
const String& str2 = String::Handle(String::FromUTF16(two, two_len));
EXPECT(str2.IsTwoByteString());
EXPECT_EQ(two_len, str2.Length());
// Concat
const String& one_two_str = String::Handle(String::Concat(str1, str2));
EXPECT(one_two_str.IsTwoByteString());
const uint16_t one_two[] = { 0x05D0, 0x05D9, 0x05D9, 0x05DF,
0x05E6, 0x05D5, 0x05D5, 0x05D9, 0x05D9 };
intptr_t one_two_len = sizeof(one_two) / sizeof(one_two[0]);
EXPECT_EQ(one_two_len, one_two_str.Length());
EXPECT(one_two_str.Equals(one_two, one_two_len));
const String& two_one_str = String::Handle(String::Concat(str2, str1));
EXPECT(two_one_str.IsTwoByteString());
const uint16_t two_one[] = { 0x05E6, 0x05D5, 0x05D5, 0x05D9, 0x05D9,
0x05D0, 0x05D9, 0x05D9, 0x05DF };
intptr_t two_one_len = sizeof(two_one) / sizeof(two_one[0]);
EXPECT_EQ(two_one_len, two_one_str.Length());
EXPECT(two_one_str.Equals(two_one, two_one_len));
// ConcatAll
const Array& array1 = Array::Handle(Array::New(2));
EXPECT_EQ(2, array1.Length());
array1.SetAt(0, str1);
array1.SetAt(1, str2);
const String& str3 = String::Handle(String::ConcatAll(array1));
EXPECT(str3.IsTwoByteString());
EXPECT_EQ(one_two_len, str3.Length());
EXPECT(str3.Equals(one_two, one_two_len));
const Array& array2 = Array::Handle(Array::New(2));
EXPECT_EQ(2, array2.Length());
array2.SetAt(0, str2);
array2.SetAt(1, str1);
const String& str4 = String::Handle(String::ConcatAll(array2));
EXPECT(str4.IsTwoByteString());
EXPECT_EQ(two_one_len, str4.Length());
EXPECT(str4.Equals(two_one, two_one_len));
const Array& array3 = Array::Handle(Array::New(3));
EXPECT_EQ(3, array3.Length());
array3.SetAt(0, str1);
array3.SetAt(1, str2);
array3.SetAt(2, str1);
const String& str5 = String::Handle(String::ConcatAll(array3));
EXPECT(str5.IsTwoByteString());
const uint16_t one_two_one[] = { 0x05D0, 0x05D9, 0x05D9, 0x05DF,
0x05E6, 0x05D5, 0x05D5, 0x05D9, 0x05D9,
0x05D0, 0x05D9, 0x05D9, 0x05DF };
intptr_t one_two_one_len = sizeof(one_two_one) / sizeof(one_two_one[0]);
EXPECT_EQ(one_two_one_len, str5.Length());
EXPECT(str5.Equals(one_two_one, one_two_one_len));
const Array& array4 = Array::Handle(Array::New(3));
EXPECT_EQ(3, array4.Length());
array4.SetAt(0, str2);
array4.SetAt(1, str1);
array4.SetAt(2, str2);
const String& str6 = String::Handle(String::ConcatAll(array4));
EXPECT(str6.IsTwoByteString());
const uint16_t two_one_two[] = { 0x05E6, 0x05D5, 0x05D5, 0x05D9, 0x05D9,
0x05D0, 0x05D9, 0x05D9, 0x05DF,
0x05E6, 0x05D5, 0x05D5, 0x05D9, 0x05D9 };
intptr_t two_one_two_len = sizeof(two_one_two) / sizeof(two_one_two[0]);
EXPECT_EQ(two_one_two_len, str6.Length());
EXPECT(str6.Equals(two_one_two, two_one_two_len));
}
// Concatenated emtpy and non-empty strings built from 4-byte elements.
{
const String& str1 = String::Handle(String::New(""));
EXPECT(str1.IsOneByteString());
EXPECT_EQ(0, str1.Length());
int32_t four[] = { 0x1D4D5, 0x1D4DE, 0x1D4E4, 0x1D4E1 };
intptr_t four_len = sizeof(four) / sizeof(four[0]);
intptr_t expected_len = (four_len * 2);
const String& str2 = String::Handle(String::FromUTF32(four, four_len));
EXPECT(str2.IsTwoByteString());
EXPECT_EQ(expected_len, str2.Length());
// Concat
const String& str3 = String::Handle(String::Concat(str1, str2));
EXPECT_EQ(expected_len, str3.Length());
EXPECT(str3.Equals(str2));
const String& str4 = String::Handle(String::Concat(str2, str1));
EXPECT(str4.IsTwoByteString());
EXPECT_EQ(expected_len, str4.Length());
EXPECT(str4.Equals(str2));
// ConcatAll
const Array& array1 = Array::Handle(Array::New(2));
EXPECT_EQ(2, array1.Length());
array1.SetAt(0, str1);
array1.SetAt(1, str2);
const String& str5 = String::Handle(String::ConcatAll(array1));
EXPECT(str5.IsTwoByteString());
EXPECT_EQ(expected_len, str5.Length());
EXPECT(str5.Equals(str2));
const Array& array2 = Array::Handle(Array::New(2));
EXPECT_EQ(2, array2.Length());
array2.SetAt(0, str1);
array2.SetAt(1, str2);
const String& str6 = String::Handle(String::ConcatAll(array2));
EXPECT(str6.IsTwoByteString());
EXPECT_EQ(expected_len, str6.Length());
EXPECT(str6.Equals(str2));
const Array& array3 = Array::Handle(Array::New(3));
EXPECT_EQ(3, array3.Length());
array3.SetAt(0, str2);
array3.SetAt(1, str1);
array3.SetAt(2, str2);
const String& str7 = String::Handle(String::ConcatAll(array3));
EXPECT(str7.IsTwoByteString());
int32_t fourfour[] = { 0x1D4D5, 0x1D4DE, 0x1D4E4, 0x1D4E1,
0x1D4D5, 0x1D4DE, 0x1D4E4, 0x1D4E1 };
intptr_t fourfour_len = sizeof(fourfour) / sizeof(fourfour[0]);
EXPECT_EQ((fourfour_len * 2), str7.Length());
const String& fourfour_str =
String::Handle(String::FromUTF32(fourfour, fourfour_len));
EXPECT(str7.Equals(fourfour_str));
}
// Concatenate non-empty strings built from 4-byte elements.
{
const int32_t one[] = { 0x105D0, 0x105D9, 0x105D9, 0x105DF };
intptr_t one_len = sizeof(one) / sizeof(one[0]);
const String& onestr = String::Handle(String::FromUTF32(one, one_len));
EXPECT(onestr.IsTwoByteString());
EXPECT_EQ((one_len *2), onestr.Length());
const int32_t two[] = { 0x105E6, 0x105D5, 0x105D5, 0x105D9, 0x105D9 };
intptr_t two_len = sizeof(two) / sizeof(two[0]);
const String& twostr = String::Handle(String::FromUTF32(two, two_len));
EXPECT(twostr.IsTwoByteString());
EXPECT_EQ((two_len * 2), twostr.Length());
// Concat
const String& str1 = String::Handle(String::Concat(onestr, twostr));
EXPECT(str1.IsTwoByteString());
const int32_t one_two[] = { 0x105D0, 0x105D9, 0x105D9, 0x105DF,
0x105E6, 0x105D5, 0x105D5, 0x105D9, 0x105D9 };
intptr_t one_two_len = sizeof(one_two) / sizeof(one_two[0]);
EXPECT_EQ((one_two_len * 2), str1.Length());
const String& one_two_str =
String::Handle(String::FromUTF32(one_two, one_two_len));
EXPECT(str1.Equals(one_two_str));
const String& str2 = String::Handle(String::Concat(twostr, onestr));
EXPECT(str2.IsTwoByteString());
const int32_t two_one[] = { 0x105E6, 0x105D5, 0x105D5, 0x105D9, 0x105D9,
0x105D0, 0x105D9, 0x105D9, 0x105DF };
intptr_t two_one_len = sizeof(two_one) / sizeof(two_one[0]);
EXPECT_EQ((two_one_len * 2), str2.Length());
const String& two_one_str =
String::Handle(String::FromUTF32(two_one, two_one_len));
EXPECT(str2.Equals(two_one_str));
// ConcatAll
const Array& array1 = Array::Handle(Array::New(2));
EXPECT_EQ(2, array1.Length());
array1.SetAt(0, onestr);
array1.SetAt(1, twostr);
const String& str3 = String::Handle(String::ConcatAll(array1));
EXPECT(str3.IsTwoByteString());
EXPECT_EQ((one_two_len * 2), str3.Length());
EXPECT(str3.Equals(one_two_str));
const Array& array2 = Array::Handle(Array::New(2));
EXPECT_EQ(2, array2.Length());
array2.SetAt(0, twostr);
array2.SetAt(1, onestr);
const String& str4 = String::Handle(String::ConcatAll(array2));
EXPECT(str4.IsTwoByteString());
EXPECT_EQ((two_one_len * 2), str4.Length());
EXPECT(str4.Equals(two_one_str));
const Array& array3 = Array::Handle(Array::New(3));
EXPECT_EQ(3, array3.Length());
array3.SetAt(0, onestr);
array3.SetAt(1, twostr);
array3.SetAt(2, onestr);
const String& str5 = String::Handle(String::ConcatAll(array3));
EXPECT(str5.IsTwoByteString());
const int32_t one_two_one[] = { 0x105D0, 0x105D9, 0x105D9, 0x105DF,
0x105E6, 0x105D5, 0x105D5, 0x105D9,
0x105D9,
0x105D0, 0x105D9, 0x105D9, 0x105DF };
intptr_t one_two_one_len = sizeof(one_two_one) / sizeof(one_two_one[0]);
EXPECT_EQ((one_two_one_len * 2), str5.Length());
const String& one_two_one_str =
String::Handle(String::FromUTF32(one_two_one, one_two_one_len));
EXPECT(str5.Equals(one_two_one_str));
const Array& array4 = Array::Handle(Array::New(3));
EXPECT_EQ(3, array4.Length());
array4.SetAt(0, twostr);
array4.SetAt(1, onestr);
array4.SetAt(2, twostr);
const String& str6 = String::Handle(String::ConcatAll(array4));
EXPECT(str6.IsTwoByteString());
const int32_t two_one_two[] = { 0x105E6, 0x105D5, 0x105D5, 0x105D9,
0x105D9,
0x105D0, 0x105D9, 0x105D9, 0x105DF,
0x105E6, 0x105D5, 0x105D5, 0x105D9,
0x105D9 };
intptr_t two_one_two_len = sizeof(two_one_two) / sizeof(two_one_two[0]);
EXPECT_EQ((two_one_two_len * 2), str6.Length());
const String& two_one_two_str =
String::Handle(String::FromUTF32(two_one_two, two_one_two_len));
EXPECT(str6.Equals(two_one_two_str));
}
// Concatenate 1-byte strings and 2-byte strings.
{
const uint8_t one[] = { 'o', 'n', 'e', ' ', 'b', 'y', 't', 'e' };
intptr_t one_len = sizeof(one) / sizeof(one[0]);
const String& onestr = String::Handle(String::FromLatin1(one, one_len));
EXPECT(onestr.IsOneByteString());
EXPECT_EQ(one_len, onestr.Length());
EXPECT(onestr.Equals(one, one_len));
uint16_t two[] = { 0x05E6, 0x05D5, 0x05D5, 0x05D9, 0x05D9 };
intptr_t two_len = sizeof(two) / sizeof(two[0]);
const String& twostr = String::Handle(String::FromUTF16(two, two_len));
EXPECT(twostr.IsTwoByteString());
EXPECT_EQ(two_len, twostr.Length());
EXPECT(twostr.Equals(two, two_len));
// Concat
const String& one_two_str = String::Handle(String::Concat(onestr, twostr));
EXPECT(one_two_str.IsTwoByteString());
uint16_t one_two[] = { 'o', 'n', 'e', ' ', 'b', 'y', 't', 'e',
0x05E6, 0x05D5, 0x05D5, 0x05D9, 0x05D9 };
intptr_t one_two_len = sizeof(one_two) / sizeof(one_two[0]);
EXPECT_EQ(one_two_len, one_two_str.Length());
EXPECT(one_two_str.Equals(one_two, one_two_len));
const String& two_one_str = String::Handle(String::Concat(twostr, onestr));
EXPECT(two_one_str.IsTwoByteString());
uint16_t two_one[] = { 0x05E6, 0x05D5, 0x05D5, 0x05D9, 0x05D9,
'o', 'n', 'e', ' ', 'b', 'y', 't', 'e' };
intptr_t two_one_len = sizeof(two_one) / sizeof(two_one[0]);
EXPECT_EQ(two_one_len, two_one_str.Length());
EXPECT(two_one_str.Equals(two_one, two_one_len));
// ConcatAll
const Array& array1 = Array::Handle(Array::New(3));
EXPECT_EQ(3, array1.Length());
array1.SetAt(0, onestr);
array1.SetAt(1, twostr);
array1.SetAt(2, onestr);
const String& one_two_one_str = String::Handle(String::ConcatAll(array1));
EXPECT(one_two_one_str.IsTwoByteString());
EXPECT_EQ(onestr.Length()*2 + twostr.Length(), one_two_one_str.Length());
uint16_t one_two_one[] = { 'o', 'n', 'e', ' ', 'b', 'y', 't', 'e',
0x05E6, 0x05D5, 0x05D5, 0x05D9, 0x05D9,
'o', 'n', 'e', ' ', 'b', 'y', 't', 'e' };
intptr_t one_two_one_len = sizeof(one_two_one) / sizeof(one_two_one[0]);
EXPECT(one_two_one_str.Equals(one_two_one, one_two_one_len));
const Array& array2 = Array::Handle(Array::New(3));
EXPECT_EQ(3, array2.Length());
array2.SetAt(0, twostr);
array2.SetAt(1, onestr);
array2.SetAt(2, twostr);
const String& two_one_two_str = String::Handle(String::ConcatAll(array2));
EXPECT(two_one_two_str.IsTwoByteString());
EXPECT_EQ(twostr.Length()*2 + onestr.Length(), two_one_two_str.Length());
uint16_t two_one_two[] = { 0x05E6, 0x05D5, 0x05D5, 0x05D9, 0x05D9,
'o', 'n', 'e', ' ', 'b', 'y', 't', 'e',
0x05E6, 0x05D5, 0x05D5, 0x05D9, 0x05D9 };
intptr_t two_one_two_len = sizeof(two_one_two) / sizeof(two_one_two[0]);
EXPECT(two_one_two_str.Equals(two_one_two, two_one_two_len));
}
}
TEST_CASE(StringSubStringDifferentWidth) {
// Create 1-byte substring from a 1-byte source string.
const char* onechars =
"\xC3\xB6\xC3\xB1\xC3\xA9";
const String& onestr = String::Handle(String::New(onechars));
EXPECT(!onestr.IsNull());
EXPECT(onestr.IsOneByteString());
EXPECT(!onestr.IsTwoByteString());
const String& onesub = String::Handle(String::SubString(onestr, 0));
EXPECT(!onesub.IsNull());
EXPECT(onestr.IsOneByteString());
EXPECT(!onestr.IsTwoByteString());
EXPECT_EQ(onesub.Length(), 3);
// Create 1- and 2-byte substrings from a 2-byte source string.
const char* twochars =
"\x1f\x2f\x3f"
"\xE1\xB9\xAB\xE1\xBA\x85\xE1\xB9\x93";
const String& twostr = String::Handle(String::New(twochars));
EXPECT(!twostr.IsNull());
EXPECT(twostr.IsTwoByteString());
const String& twosub1 = String::Handle(String::SubString(twostr, 0, 3));
EXPECT(!twosub1.IsNull());
EXPECT(twosub1.IsOneByteString());
EXPECT_EQ(twosub1.Length(), 3);
const String& twosub2 = String::Handle(String::SubString(twostr, 3));
EXPECT(!twosub2.IsNull());
EXPECT(twosub2.IsTwoByteString());
EXPECT_EQ(twosub2.Length(), 3);
// Create substrings from a string built using 1-, 2- and 4-byte elements.
const char* fourchars =
"\x1f\x2f\x3f"
"\xE1\xB9\xAB\xE1\xBA\x85\xE1\xB9\x93"
"\xF0\x9D\x96\xBF\xF0\x9D\x97\x88\xF0\x9D\x97\x8E\xF0\x9D\x97\x8B";
const String& fourstr = String::Handle(String::New(fourchars));
EXPECT(!fourstr.IsNull());
EXPECT(fourstr.IsTwoByteString());
const String& foursub1 = String::Handle(String::SubString(fourstr, 0, 3));
EXPECT(!foursub1.IsNull());
EXPECT(foursub1.IsOneByteString());
EXPECT_EQ(foursub1.Length(), 3);
const String& foursub2 = String::Handle(String::SubString(fourstr, 3, 3));
EXPECT(!foursub2.IsNull());
EXPECT(foursub2.IsTwoByteString());
EXPECT_EQ(foursub2.Length(), 3);
const String& foursub4 = String::Handle(String::SubString(fourstr, 6));
EXPECT_EQ(foursub4.Length(), 8);
EXPECT(!foursub4.IsNull());
EXPECT(foursub4.IsTwoByteString());
}
TEST_CASE(StringFromUtf8Literal) {
// Create a 1-byte string from a UTF-8 encoded string literal.
{
const char* src =
"\xC2\xA0\xC2\xA1\xC2\xA2\xC2\xA3"
"\xC2\xA4\xC2\xA5\xC2\xA6\xC2\xA7"
"\xC2\xA8\xC2\xA9\xC2\xAA\xC2\xAB"
"\xC2\xAC\xC2\xAD\xC2\xAE\xC2\xAF"
"\xC2\xB0\xC2\xB1\xC2\xB2\xC2\xB3"
"\xC2\xB4\xC2\xB5\xC2\xB6\xC2\xB7"
"\xC2\xB8\xC2\xB9\xC2\xBA\xC2\xBB"
"\xC2\xBC\xC2\xBD\xC2\xBE\xC2\xBF"
"\xC3\x80\xC3\x81\xC3\x82\xC3\x83"
"\xC3\x84\xC3\x85\xC3\x86\xC3\x87"
"\xC3\x88\xC3\x89\xC3\x8A\xC3\x8B"
"\xC3\x8C\xC3\x8D\xC3\x8E\xC3\x8F"
"\xC3\x90\xC3\x91\xC3\x92\xC3\x93"
"\xC3\x94\xC3\x95\xC3\x96\xC3\x97"
"\xC3\x98\xC3\x99\xC3\x9A\xC3\x9B"
"\xC3\x9C\xC3\x9D\xC3\x9E\xC3\x9F"
"\xC3\xA0\xC3\xA1\xC3\xA2\xC3\xA3"
"\xC3\xA4\xC3\xA5\xC3\xA6\xC3\xA7"
"\xC3\xA8\xC3\xA9\xC3\xAA\xC3\xAB"
"\xC3\xAC\xC3\xAD\xC3\xAE\xC3\xAF"
"\xC3\xB0\xC3\xB1\xC3\xB2\xC3\xB3"
"\xC3\xB4\xC3\xB5\xC3\xB6\xC3\xB7"
"\xC3\xB8\xC3\xB9\xC3\xBA\xC3\xBB"
"\xC3\xBC\xC3\xBD\xC3\xBE\xC3\xBF";
const uint8_t expected[] = {
0xA0, 0xA1, 0xA2, 0xA3, 0xA4, 0xA5, 0xA6, 0xA7,
0xA8, 0xA9, 0xAA, 0xAB, 0xAC, 0xAD, 0xAE, 0xAF,
0xB0, 0xB1, 0xB2, 0xB3, 0xB4, 0xB5, 0xB6, 0xB7,
0xB8, 0xB9, 0xBA, 0xBB, 0xBC, 0xBD, 0xBE, 0xBF,
0xC0, 0xC1, 0xC2, 0xC3, 0xC4, 0xC5, 0xC6, 0xC7,
0xC8, 0xC9, 0xCA, 0xCB, 0xCC, 0xCD, 0xCE, 0xCF,
0xD0, 0xD1, 0xD2, 0xD3, 0xD4, 0xD5, 0xD6, 0xD7,
0xD8, 0xD9, 0xDA, 0xDB, 0xDC, 0xDD, 0xDE, 0xDF,
0xE0, 0xE1, 0xE2, 0xE3, 0xE4, 0xE5, 0xE6, 0xE7,
0xE8, 0xE9, 0xEA, 0xEB, 0xEC, 0xED, 0xEE, 0xEF,
0xF0, 0xF1, 0xF2, 0xF3, 0xF4, 0xF5, 0xF6, 0xF7,
0xF8, 0xF9, 0xFA, 0xFB, 0xFC, 0xFD, 0xFE, 0xFF,
};
const String& str = String::Handle(String::New(src));
EXPECT(str.IsOneByteString());
intptr_t expected_length = sizeof(expected);
EXPECT_EQ(expected_length, str.Length());
for (int i = 0; i < str.Length(); ++i) {
EXPECT_EQ(expected[i], str.CharAt(i));
}
}
// Create a 2-byte string from a UTF-8 encoded string literal.
{
const char* src =
"\xD7\x92\xD7\x9C\xD7\xA2\xD7\x93"
"\xD7\x91\xD7\xA8\xD7\x9B\xD7\x94";
const uint16_t expected[] = {
0x5D2, 0x5DC, 0x5E2, 0x5D3,
0x5D1, 0x5E8, 0x5DB, 0x5D4
};
const String& str = String::Handle(String::New(src));
EXPECT(str.IsTwoByteString());
intptr_t expected_size = sizeof(expected) / sizeof(expected[0]);
EXPECT_EQ(expected_size, str.Length());
for (int i = 0; i < str.Length(); ++i) {
EXPECT_EQ(expected[i], str.CharAt(i));
}
}
// Create a BMP 2-byte string from UTF-8 encoded 1- and 2-byte
// characters.
{
const char* src =
"\x0A\x0B\x0D\x0C\x0E\x0F\xC2\xA0"
"\xC2\xB0\xC3\x80\xC3\x90\xC3\xA0"
"\xC3\xB0\xE0\xA8\x80\xE0\xAC\x80"
"\xE0\xB0\x80\xE0\xB4\x80\xE0\xB8"
"\x80\xE0\xBC\x80\xEA\x80\x80\xEB"
"\x80\x80\xEC\x80\x80\xED\x80\x80"
"\xEE\x80\x80\xEF\x80\x80";
const intptr_t expected[] = {
0x000A, 0x000B, 0x000D, 0x000C, 0x000E, 0x000F, 0x00A0, 0x00B0,
0x00C0, 0x00D0, 0x00E0, 0x00F0, 0x0A00, 0x0B00, 0x0C00, 0x0D00,
0x0E00, 0x0F00, 0xA000, 0xB000, 0xC000, 0xD000, 0xE000, 0xF000
};
const String& str = String::Handle(String::New(src));
EXPECT(str.IsTwoByteString());
intptr_t expected_size = sizeof(expected) / sizeof(expected[0]);
EXPECT_EQ(expected_size, str.Length());
for (int i = 0; i < str.Length(); ++i) {
EXPECT_EQ(expected[i], str.CharAt(i));
}
}
// Create a 2-byte string with supplementary characters from a UTF-8
// string literal.
{
const char* src =
"\xF0\x9D\x91\xA0\xF0\x9D\x91\xA1"
"\xF0\x9D\x91\xA2\xF0\x9D\x91\xA3";
const intptr_t expected[] = { 0xd835, 0xdc60, 0xd835, 0xdc61,
0xd835, 0xdc62, 0xd835, 0xdc63 };
const String& str = String::Handle(String::New(src));
EXPECT(str.IsTwoByteString());
intptr_t expected_size = (sizeof(expected) / sizeof(expected[0]));
EXPECT_EQ(expected_size, str.Length());
for (int i = 0; i < str.Length(); ++i) {
EXPECT_EQ(expected[i], str.CharAt(i));
}
}
// Create a 2-byte string from UTF-8 encoded 2- and 4-byte
// characters.
{
const char* src =
"\xE0\xA8\x80\xE0\xAC\x80\xE0\xB0"
"\x80\xE0\xB4\x80\xE0\xB8\x80\xE0"
"\xBC\x80\xEA\x80\x80\xEB\x80\x80"
"\xEC\x80\x80\xED\x80\x80\xEE\x80"
"\x80\xEF\x80\x80\xF0\x9A\x80\x80"
"\xF0\x9B\x80\x80\xF0\x9D\x80\x80"
"\xF0\x9E\x80\x80\xF0\x9F\x80\x80";
const intptr_t expected[] = {
0x0A00, 0x0B00, 0x0C00, 0x0D00, 0x0E00, 0x0F00, 0xA000, 0xB000, 0xC000,
0xD000, 0xE000, 0xF000, 0xD828, 0xDC00, 0xD82c, 0xDC00, 0xD834, 0xDC00,
0xD838, 0xDC00, 0xD83c, 0xDC00,
};
const String& str = String::Handle(String::New(src));
EXPECT(str.IsTwoByteString());
intptr_t expected_size = sizeof(expected) / sizeof(expected[0]);
EXPECT_EQ(expected_size, str.Length());
for (int i = 0; i < str.Length(); ++i) {
EXPECT_EQ(expected[i], str.CharAt(i));
}
}
// Create a 2-byte string from UTF-8 encoded 1-, 2- and 4-byte
// characters.
{
const char* src =
"\x0A\x0B\x0D\x0C\x0E\x0F\xC2\xA0"
"\xC2\xB0\xC3\x80\xC3\x90\xC3\xA0"
"\xC3\xB0\xE0\xA8\x80\xE0\xAC\x80"
"\xE0\xB0\x80\xE0\xB4\x80\xE0\xB8"
"\x80\xE0\xBC\x80\xEA\x80\x80\xEB"
"\x80\x80\xEC\x80\x80\xED\x80\x80"
"\xEE\x80\x80\xEF\x80\x80\xF0\x9A"
"\x80\x80\xF0\x9B\x80\x80\xF0\x9D"
"\x80\x80\xF0\x9E\x80\x80\xF0\x9F"
"\x80\x80";
const intptr_t expected[] = {
0x000A, 0x000B, 0x000D, 0x000C, 0x000E, 0x000F, 0x00A0, 0x00B0,
0x00C0, 0x00D0, 0x00E0, 0x00F0, 0x0A00, 0x0B00, 0x0C00, 0x0D00,
0x0E00, 0x0F00, 0xA000, 0xB000, 0xC000, 0xD000, 0xE000, 0xF000,
0xD828, 0xDC00, 0xD82c, 0xDC00, 0xD834, 0xDC00, 0xD838, 0xDC00,
0xD83c, 0xDC00,
};
const String& str = String::Handle(String::New(src));
EXPECT(str.IsTwoByteString());
intptr_t expected_size = sizeof(expected) / sizeof(expected[0]);
EXPECT_EQ(expected_size, str.Length());
for (int i = 0; i < str.Length(); ++i) {
EXPECT_EQ(expected[i], str.CharAt(i));
}
}
}
TEST_CASE(StringEqualsUtf8) {
const char* onesrc = "abc";
const String& onestr = String::Handle(String::New(onesrc));
EXPECT(onestr.IsOneByteString());
EXPECT(!onestr.Equals(""));
EXPECT(!onestr.Equals("a"));
EXPECT(!onestr.Equals("ab"));
EXPECT(onestr.Equals("abc"));
EXPECT(!onestr.Equals("abcd"));
const char* twosrc = "\xD7\x90\xD7\x91\xD7\x92";
const String& twostr = String::Handle(String::New(twosrc));
EXPECT(twostr.IsTwoByteString());
EXPECT(!twostr.Equals(""));
EXPECT(!twostr.Equals("\xD7\x90"));
EXPECT(!twostr.Equals("\xD7\x90\xD7\x91"));
EXPECT(twostr.Equals("\xD7\x90\xD7\x91\xD7\x92"));
EXPECT(!twostr.Equals("\xD7\x90\xD7\x91\xD7\x92\xD7\x93"));
const char* foursrc = "\xF0\x90\x8E\xA0\xF0\x90\x8E\xA1\xF0\x90\x8E\xA2";
const String& fourstr = String::Handle(String::New(foursrc));
EXPECT(fourstr.IsTwoByteString());
EXPECT(!fourstr.Equals(""));
EXPECT(!fourstr.Equals("\xF0\x90\x8E\xA0"));
EXPECT(!fourstr.Equals("\xF0\x90\x8E\xA0\xF0\x90\x8E\xA1"));
EXPECT(fourstr.Equals("\xF0\x90\x8E\xA0\xF0\x90\x8E\xA1\xF0\x90\x8E\xA2"));
EXPECT(!fourstr.Equals("\xF0\x90\x8E\xA0\xF0\x90\x8E\xA1"
"\xF0\x90\x8E\xA2\xF0\x90\x8E\xA3"));
}
TEST_CASE(StringEqualsUTF32) {
const String& empty = String::Handle(String::New(""));
const String& t_str = String::Handle(String::New("t"));
const String& th_str = String::Handle(String::New("th"));
const int32_t chars[] = {'t', 'h', 'i', 's'};
EXPECT(!empty.Equals(chars, -1));
EXPECT(empty.Equals(chars, 0));
EXPECT(!empty.Equals(chars, 1));
EXPECT(!t_str.Equals(chars, 0));
EXPECT(t_str.Equals(chars, 1));
EXPECT(!t_str.Equals(chars, 2));
EXPECT(!th_str.Equals(chars, 1));
EXPECT(th_str.Equals(chars, 2));
EXPECT(!th_str.Equals(chars, 3));
}
TEST_CASE(ExternalOneByteString) {
uint8_t characters[] = { 0xF6, 0xF1, 0xE9 };
intptr_t len = ARRAY_SIZE(characters);
const String& str =
String::Handle(
ExternalOneByteString::New(characters, len, NULL, NULL, Heap::kNew));
EXPECT(!str.IsOneByteString());
EXPECT(str.IsExternalOneByteString());
EXPECT_EQ(str.Length(), len);
EXPECT(str.Equals("\xC3\xB6\xC3\xB1\xC3\xA9"));
const String& copy = String::Handle(String::SubString(str, 0, len));
EXPECT(!copy.IsExternalOneByteString());
EXPECT(copy.IsOneByteString());
EXPECT_EQ(len, copy.Length());
EXPECT(copy.Equals(str));
const String& concat = String::Handle(String::Concat(str, str));
EXPECT(!concat.IsExternalOneByteString());
EXPECT(concat.IsOneByteString());
EXPECT_EQ(len * 2, concat.Length());
EXPECT(concat.Equals("\xC3\xB6\xC3\xB1\xC3\xA9\xC3\xB6\xC3\xB1\xC3\xA9"));
const String& substr = String::Handle(String::SubString(str, 1, 1));
EXPECT(!substr.IsExternalOneByteString());
EXPECT(substr.IsOneByteString());
EXPECT_EQ(1, substr.Length());
EXPECT(substr.Equals("\xC3\xB1"));
}
TEST_CASE(ExternalTwoByteString) {
uint16_t characters[] = { 0x1E6B, 0x1E85, 0x1E53 };
intptr_t len = ARRAY_SIZE(characters);
const String& str =
String::Handle(
ExternalTwoByteString::New(characters, len, NULL, NULL, Heap::kNew));
EXPECT(!str.IsTwoByteString());
EXPECT(str.IsExternalTwoByteString());
EXPECT_EQ(str.Length(), len);
EXPECT(str.Equals("\xE1\xB9\xAB\xE1\xBA\x85\xE1\xB9\x93"));
const String& copy = String::Handle(String::SubString(str, 0, len));
EXPECT(!copy.IsExternalTwoByteString());
EXPECT(copy.IsTwoByteString());
EXPECT_EQ(len, copy.Length());
EXPECT(copy.Equals(str));
const String& concat = String::Handle(String::Concat(str, str));
EXPECT(!concat.IsExternalTwoByteString());
EXPECT(concat.IsTwoByteString());
EXPECT_EQ(len * 2, concat.Length());
EXPECT(concat.Equals("\xE1\xB9\xAB\xE1\xBA\x85\xE1\xB9\x93"
"\xE1\xB9\xAB\xE1\xBA\x85\xE1\xB9\x93"));
const String& substr = String::Handle(String::SubString(str, 1, 1));
EXPECT(!substr.IsExternalTwoByteString());
EXPECT(substr.IsTwoByteString());
EXPECT_EQ(1, substr.Length());
EXPECT(substr.Equals("\xE1\xBA\x85"));
}
TEST_CASE(Symbol) {
const String& one = String::Handle(Symbols::New("Eins"));
EXPECT(one.IsSymbol());
const String& two = String::Handle(Symbols::New("Zwei"));
const String& three = String::Handle(Symbols::New("Drei"));
const String& four = String::Handle(Symbols::New("Vier"));
const String& five = String::Handle(Symbols::New("Fuenf"));
const String& six = String::Handle(Symbols::New("Sechs"));
const String& seven = String::Handle(Symbols::New("Sieben"));
const String& eight = String::Handle(Symbols::New("Acht"));
const String& nine = String::Handle(Symbols::New("Neun"));
const String& ten = String::Handle(Symbols::New("Zehn"));
String& eins = String::Handle(Symbols::New("Eins"));
EXPECT_EQ(one.raw(), eins.raw());
EXPECT(one.raw() != two.raw());
EXPECT(two.Equals(String::Handle(String::New("Zwei"))));
EXPECT_EQ(two.raw(), Symbols::New("Zwei"));
EXPECT_EQ(three.raw(), Symbols::New("Drei"));
EXPECT_EQ(four.raw(), Symbols::New("Vier"));
EXPECT_EQ(five.raw(), Symbols::New("Fuenf"));
EXPECT_EQ(six.raw(), Symbols::New("Sechs"));
EXPECT_EQ(seven.raw(), Symbols::New("Sieben"));
EXPECT_EQ(eight.raw(), Symbols::New("Acht"));
EXPECT_EQ(nine.raw(), Symbols::New("Neun"));
EXPECT_EQ(ten.raw(), Symbols::New("Zehn"));
// Make sure to cause symbol table overflow.
for (int i = 0; i < 1024; i++) {
char buf[256];
OS::SNPrint(buf, sizeof(buf), "%d", i);
Symbols::New(buf);
}
eins = Symbols::New("Eins");
EXPECT_EQ(one.raw(), eins.raw());
EXPECT_EQ(two.raw(), Symbols::New("Zwei"));
EXPECT_EQ(three.raw(), Symbols::New("Drei"));
EXPECT_EQ(four.raw(), Symbols::New("Vier"));
EXPECT_EQ(five.raw(), Symbols::New("Fuenf"));
EXPECT_EQ(six.raw(), Symbols::New("Sechs"));
EXPECT_EQ(seven.raw(), Symbols::New("Sieben"));
EXPECT_EQ(eight.raw(), Symbols::New("Acht"));
EXPECT_EQ(nine.raw(), Symbols::New("Neun"));
EXPECT_EQ(ten.raw(), Symbols::New("Zehn"));
// Symbols from Strings.
eins = String::New("Eins");
EXPECT(!eins.IsSymbol());
String& ein_symbol = String::Handle(Symbols::New(eins));
EXPECT_EQ(one.raw(), ein_symbol.raw());
EXPECT(one.raw() != eins.raw());
uint16_t char16[] = { 'E', 'l', 'f' };
String& elf1 = String::Handle(Symbols::FromUTF16(char16, 3));
int32_t char32[] = { 'E', 'l', 'f' };
String& elf2 = String::Handle(Symbols::FromUTF32(char32, 3));
EXPECT(elf1.IsSymbol());
EXPECT(elf2.IsSymbol());
EXPECT_EQ(elf1.raw(), Symbols::New("Elf"));
EXPECT_EQ(elf2.raw(), Symbols::New("Elf"));
}
TEST_CASE(SymbolUnicode) {
uint16_t monkey_utf16[] = { 0xd83d, 0xdc35 }; // Unicode Monkey Face.
String& monkey = String::Handle(Symbols::FromUTF16(monkey_utf16, 2));
EXPECT(monkey.IsSymbol());
const char monkey_utf8[] = {0xf0, 0x9f, 0x90, 0xb5, 0};
EXPECT_EQ(monkey.raw(), Symbols::New(monkey_utf8));
int32_t kMonkeyFace = 0x1f435;
String& monkey2 = String::Handle(Symbols::FromCharCode(kMonkeyFace));
EXPECT_EQ(monkey.raw(), monkey2.raw());
// Unicode cat face with tears of joy.
int32_t kCatFaceWithTearsOfJoy = 0x1f639;
String& cat = String::Handle(Symbols::FromCharCode(kCatFaceWithTearsOfJoy));
uint16_t cat_utf16[] = { 0xd83d, 0xde39 };
String& cat2 = String::Handle(Symbols::FromUTF16(cat_utf16, 2));
EXPECT(cat2.IsSymbol());
EXPECT_EQ(cat2.raw(), cat.raw());
}
TEST_CASE(Bool) {
EXPECT(Bool::True().value());
EXPECT(!Bool::False().value());
}
TEST_CASE(Array) {
const int kArrayLen = 5;
const Array& array = Array::Handle(Array::New(kArrayLen));
EXPECT_EQ(kArrayLen, array.Length());
Object& element = Object::Handle(array.At(0));
EXPECT(element.IsNull());
element = array.At(kArrayLen - 1);
EXPECT(element.IsNull());
array.SetAt(0, array);
array.SetAt(2, array);
element = array.At(0);
EXPECT_EQ(array.raw(), element.raw());
element = array.At(1);
EXPECT(element.IsNull());
element = array.At(2);
EXPECT_EQ(array.raw(), element.raw());
Array& other_array = Array::Handle(Array::New(kArrayLen));
other_array.SetAt(0, array);
other_array.SetAt(2, array);
EXPECT(array.Equals(array));
EXPECT(array.Equals(other_array));
other_array.SetAt(1, other_array);
EXPECT(!array.Equals(other_array));
other_array = Array::New(kArrayLen - 1);
other_array.SetAt(0, array);
other_array.SetAt(2, array);
EXPECT(!array.Equals(other_array));
EXPECT_EQ(0, Object::empty_array().Length());
}
TEST_CASE(StringCodePointIterator) {
const String& str0 = String::Handle(String::New(""));
String::CodePointIterator it0(str0);
EXPECT(!it0.Next());
const String& str1 = String::Handle(String::New(" \xc3\xa7 "));
String::CodePointIterator it1(str1);
EXPECT(it1.Next());
EXPECT_EQ(' ', it1.Current());
EXPECT(it1.Next());
EXPECT_EQ(0xE7, it1.Current());
EXPECT(it1.Next());
EXPECT_EQ(' ', it1.Current());
EXPECT(!it1.Next());
const String& str2 = String::Handle(String::New("\xD7\x92\xD7\x9C"
"\xD7\xA2\xD7\x93"
"\xD7\x91\xD7\xA8"
"\xD7\x9B\xD7\x94"));
String::CodePointIterator it2(str2);
EXPECT(it2.Next());
EXPECT_EQ(0x5D2, it2.Current());
EXPECT(it2.Next());
EXPECT_EQ(0x5DC, it2.Current());
EXPECT(it2.Next());
EXPECT_EQ(0x5E2, it2.Current());
EXPECT(it2.Next());
EXPECT_EQ(0x5D3, it2.Current());
EXPECT(it2.Next());
EXPECT_EQ(0x5D1, it2.Current());
EXPECT(it2.Next());
EXPECT_EQ(0x5E8, it2.Current());
EXPECT(it2.Next());
EXPECT_EQ(0x5DB, it2.Current());
EXPECT(it2.Next());
EXPECT_EQ(0x5D4, it2.Current());
EXPECT(!it2.Next());
const String& str3 = String::Handle(String::New("\xF0\x9D\x91\xA0"
"\xF0\x9D\x91\xA1"
"\xF0\x9D\x91\xA2"
"\xF0\x9D\x91\xA3"));
String::CodePointIterator it3(str3);
EXPECT(it3.Next());
EXPECT_EQ(0x1D460, it3.Current());
EXPECT(it3.Next());
EXPECT_EQ(0x1D461, it3.Current());
EXPECT(it3.Next());
EXPECT_EQ(0x1D462, it3.Current());
EXPECT(it3.Next());
EXPECT_EQ(0x1D463, it3.Current());
EXPECT(!it3.Next());
}
TEST_CASE(StringCodePointIteratorRange) {
const String& str = String::Handle(String::New("foo bar baz"));
String::CodePointIterator it0(str, 3, 0);
EXPECT(!it0.Next());
String::CodePointIterator it1(str, 4, 3);
EXPECT(it1.Next());
EXPECT_EQ('b', it1.Current());
EXPECT(it1.Next());
EXPECT_EQ('a', it1.Current());
EXPECT(it1.Next());
EXPECT_EQ('r', it1.Current());
EXPECT(!it1.Next());
}
TEST_CASE(GrowableObjectArray) {
const int kArrayLen = 5;
Smi& value = Smi::Handle();
Smi& expected_value = Smi::Handle();
GrowableObjectArray& array = GrowableObjectArray::Handle();
// Test basic growing functionality.
array = GrowableObjectArray::New(kArrayLen);
EXPECT_EQ(kArrayLen, array.Capacity());
EXPECT_EQ(0, array.Length());
for (intptr_t i = 0; i < 10; i++) {
value = Smi::New(i);
array.Add(value);
}
EXPECT_EQ(10, array.Length());
for (intptr_t i = 0; i < 10; i++) {
expected_value = Smi::New(i);
value ^= array.At(i);
EXPECT(value.Equals(expected_value));
}
for (intptr_t i = 0; i < 10; i++) {
value = Smi::New(i * 10);
array.SetAt(i, value);
}
EXPECT_EQ(10, array.Length());
for (intptr_t i = 0; i < 10; i++) {
expected_value = Smi::New(i * 10);
value ^= array.At(i);
EXPECT(value.Equals(expected_value));
}
// Test the MakeArray functionality to make sure the resulting array
// object is properly setup.
// 1. Should produce an array of length 2 and a left over int8 array.
Array& new_array = Array::Handle();
TypedData& left_over_array = TypedData::Handle();
Object& obj = Object::Handle();
uword addr = 0;
intptr_t used_size = 0;
array = GrowableObjectArray::New(kArrayLen + 1);
EXPECT_EQ(kArrayLen + 1, array.Capacity());
EXPECT_EQ(0, array.Length());
for (intptr_t i = 0; i < 2; i++) {
value = Smi::New(i);
array.Add(value);
}
used_size = Array::InstanceSize(array.Length());
new_array = Array::MakeArray(array);
addr = RawObject::ToAddr(new_array.raw());
obj = RawObject::FromAddr(addr);
EXPECT(obj.IsArray());
new_array ^= obj.raw();
EXPECT_EQ(2, new_array.Length());
addr += used_size;
obj = RawObject::FromAddr(addr);
EXPECT(obj.IsTypedData());
left_over_array ^= obj.raw();
EXPECT_EQ((2 * kWordSize), left_over_array.Length());
// 2. Should produce an array of length 3 and a left over int8 array.
array = GrowableObjectArray::New(kArrayLen);
EXPECT_EQ(kArrayLen, array.Capacity());
EXPECT_EQ(0, array.Length());
for (intptr_t i = 0; i < 3; i++) {
value = Smi::New(i);
array.Add(value);
}
used_size = Array::InstanceSize(array.Length());
new_array = Array::MakeArray(array);
addr = RawObject::ToAddr(new_array.raw());
obj = RawObject::FromAddr(addr);
EXPECT(obj.IsArray());
new_array ^= obj.raw();
EXPECT_EQ(3, new_array.Length());
addr += used_size;
obj = RawObject::FromAddr(addr);
EXPECT(obj.IsTypedData());
left_over_array ^= obj.raw();
EXPECT_EQ(0, left_over_array.Length());
// 3. Should produce an array of length 1 and a left over int8 array.
array = GrowableObjectArray::New(kArrayLen + 3);
EXPECT_EQ((kArrayLen + 3), array.Capacity());
EXPECT_EQ(0, array.Length());
for (intptr_t i = 0; i < 1; i++) {
value = Smi::New(i);
array.Add(value);
}
used_size = Array::InstanceSize(array.Length());
new_array = Array::MakeArray(array);
addr = RawObject::ToAddr(new_array.raw());
obj = RawObject::FromAddr(addr);
EXPECT(obj.IsArray());
new_array ^= obj.raw();
EXPECT_EQ(1, new_array.Length());
addr += used_size;
obj = RawObject::FromAddr(addr);
EXPECT(obj.IsTypedData());
left_over_array ^= obj.raw();
EXPECT_EQ((6 * kWordSize), left_over_array.Length());
}
TEST_CASE(InternalTypedData) {
uint8_t data[] = { 253, 254, 255, 0, 1, 2, 3, 4 };
intptr_t data_length = ARRAY_SIZE(data);
const TypedData& int8_array =
TypedData::Handle(TypedData::New(kTypedDataInt8ArrayCid, data_length));
EXPECT(!int8_array.IsNull());
EXPECT_EQ(data_length, int8_array.Length());
for (intptr_t i = 0; i < data_length; ++i) {
int8_array.SetInt8(i, data[i]);
}
EXPECT_EQ(-3, int8_array.GetInt8(0));
EXPECT_EQ(253, int8_array.GetUint8(0));
EXPECT_EQ(-2, int8_array.GetInt8(1));
EXPECT_EQ(254, int8_array.GetUint8(1));
EXPECT_EQ(-1, int8_array.GetInt8(2));
EXPECT_EQ(255, int8_array.GetUint8(2));
EXPECT_EQ(0, int8_array.GetInt8(3));
EXPECT_EQ(0, int8_array.GetUint8(3));
EXPECT_EQ(1, int8_array.GetInt8(4));
EXPECT_EQ(1, int8_array.GetUint8(4));
EXPECT_EQ(2, int8_array.GetInt8(5));
EXPECT_EQ(2, int8_array.GetUint8(5));
EXPECT_EQ(3, int8_array.GetInt8(6));
EXPECT_EQ(3, int8_array.GetUint8(6));
EXPECT_EQ(4, int8_array.GetInt8(7));
EXPECT_EQ(4, int8_array.GetUint8(7));
const TypedData& int8_array2 =
TypedData::Handle(TypedData::New(kTypedDataInt8ArrayCid, data_length));
EXPECT(!int8_array.IsNull());
EXPECT_EQ(data_length, int8_array.Length());
for (intptr_t i = 0; i < data_length; ++i) {
int8_array2.SetInt8(i, data[i]);
}
for (intptr_t i = 0; i < data_length; ++i) {
EXPECT_EQ(int8_array.GetInt8(i), int8_array2.GetInt8(i));
}
for (intptr_t i = 0; i < data_length; ++i) {
int8_array.SetInt8(i, 123 + i);
}
for (intptr_t i = 0; i < data_length; ++i) {
EXPECT(int8_array.GetInt8(i) != int8_array2.GetInt8(i));
}
}
TEST_CASE(ExternalTypedData) {
uint8_t data[] = { 253, 254, 255, 0, 1, 2, 3, 4 };
intptr_t data_length = ARRAY_SIZE(data);
const ExternalTypedData& int8_array =
ExternalTypedData::Handle(
ExternalTypedData::New(kExternalTypedDataInt8ArrayCid,
data,
data_length));
EXPECT(!int8_array.IsNull());
EXPECT_EQ(data_length, int8_array.Length());
const ExternalTypedData& uint8_array =
ExternalTypedData::Handle(
ExternalTypedData::New(kExternalTypedDataUint8ArrayCid,
data,
data_length));
EXPECT(!uint8_array.IsNull());
EXPECT_EQ(data_length, uint8_array.Length());
const ExternalTypedData& uint8_clamped_array =
ExternalTypedData::Handle(
ExternalTypedData::New(kExternalTypedDataUint8ClampedArrayCid,
data,
data_length));
EXPECT(!uint8_clamped_array.IsNull());
EXPECT_EQ(data_length, uint8_clamped_array.Length());
EXPECT_EQ(-3, int8_array.GetInt8(0));
EXPECT_EQ(253, uint8_array.GetUint8(0));
EXPECT_EQ(253, uint8_clamped_array.GetUint8(0));
EXPECT_EQ(-2, int8_array.GetInt8(1));
EXPECT_EQ(254, uint8_array.GetUint8(1));
EXPECT_EQ(254, uint8_clamped_array.GetUint8(1));
EXPECT_EQ(-1, int8_array.GetInt8(2));
EXPECT_EQ(255, uint8_array.GetUint8(2));
EXPECT_EQ(255, uint8_clamped_array.GetUint8(2));
EXPECT_EQ(0, int8_array.GetInt8(3));
EXPECT_EQ(0, uint8_array.GetUint8(3));
EXPECT_EQ(0, uint8_clamped_array.GetUint8(3));
EXPECT_EQ(1, int8_array.GetInt8(4));
EXPECT_EQ(1, uint8_array.GetUint8(4));
EXPECT_EQ(1, uint8_clamped_array.GetUint8(4));
EXPECT_EQ(2, int8_array.GetInt8(5));
EXPECT_EQ(2, uint8_array.GetUint8(5));
EXPECT_EQ(2, uint8_clamped_array.GetUint8(5));
for (intptr_t i = 0 ; i < int8_array.Length(); ++i) {
EXPECT_EQ(int8_array.GetUint8(i), uint8_array.GetUint8(i));
}
int8_array.SetInt8(2, -123);
uint8_array.SetUint8(0, 123);
for (intptr_t i = 0 ; i < int8_array.Length(); ++i) {
EXPECT_EQ(int8_array.GetInt8(i), uint8_array.GetInt8(i));
}
uint8_clamped_array.SetUint8(0, 123);
for (intptr_t i = 0 ; i < int8_array.Length(); ++i) {
EXPECT_EQ(int8_array.GetUint8(i), uint8_clamped_array.GetUint8(i));
}
}
TEST_CASE(Script) {
const char* url_chars = "builtin:test-case";
const char* source_chars = "This will not compile.";
const String& url = String::Handle(String::New(url_chars));
const String& source = String::Handle(String::New(source_chars));
const Script& script = Script::Handle(Script::New(url,
source,
RawScript::kSourceTag));
EXPECT(!script.IsNull());
EXPECT(script.IsScript());
String& str = String::Handle(script.url());
EXPECT_EQ(17, str.Length());
EXPECT_EQ('b', str.CharAt(0));
EXPECT_EQ(':', str.CharAt(7));
EXPECT_EQ('e', str.CharAt(16));
str = script.Source();
EXPECT_EQ(22, str.Length());
EXPECT_EQ('T', str.CharAt(0));
EXPECT_EQ('n', str.CharAt(10));
EXPECT_EQ('.', str.CharAt(21));
}
TEST_CASE(EmbeddedScript) {
const char* url_chars = "builtin:test-case";
const char* text =
/* 1 */ "<!DOCTYPE html>\n"
/* 2 */ " ... more junk ...\n"
/* 3 */ " <script type='application/dart'>main() {\n"
/* 4 */ " return 'foo';\n"
/* 5 */ " }\n"
/* 6 */ "</script>\n";
const char* line1 = text;
const char* line2 = strstr(line1, "\n") + 1;
const char* line3 = strstr(line2, "\n") + 1;
const char* line4 = strstr(line3, "\n") + 1;
const char* line5 = strstr(line4, "\n") + 1;
const int first_dart_line = 3;
ASSERT(strstr(line3, "main") != NULL);
const int last_dart_line = 5;
ASSERT(strstr(line5, "}") != NULL);
const char* script_begin = strstr(text, "main");
ASSERT(script_begin != NULL);
const char* script_end = strstr(text, "</script>");
ASSERT(script_end != NULL);
int script_length = script_end - script_begin;
ASSERT(script_length > 0);
// The Dart script starts on line 3 instead of 1, offset is 3 - 1 = 2.
int line_offset = 2;
// Dart script starts with "main" on line 3.
intptr_t col_offset = script_begin - line3;
ASSERT(col_offset > 0);
char* src_chars = strdup(script_begin);
src_chars[script_length] = '\0';
const String& url = String::Handle(String::New(url_chars));
const String& source = String::Handle(String::New(src_chars));
const Script& script = Script::Handle(
Script::New(url, source, RawScript::kSourceTag));
script.SetLocationOffset(line_offset, col_offset);
String& str = String::Handle();
str = script.GetLine(first_dart_line);
EXPECT_STREQ("main() {", str.ToCString());
str = script.GetLine(last_dart_line);
EXPECT_STREQ(" }", str.ToCString());
script.Tokenize(String::Handle(String::New("ABC")));
intptr_t line, col;
script.GetTokenLocation(0, &line, &col);
EXPECT_EQ(first_dart_line, line);
EXPECT_EQ(col, col_offset + 1);
script.GetTokenLocation(4, &line, &col); // Token 'return'
EXPECT_EQ(4, line); // 'return' is in line 4.
EXPECT_EQ(5, col); // Four spaces before 'return'.
intptr_t first_idx, last_idx;
script.TokenRangeAtLine(3, &first_idx, &last_idx);
EXPECT_EQ(0, first_idx); // Token 'main' is first token.
EXPECT_EQ(3, last_idx); // Token { is last token.
script.TokenRangeAtLine(5, &first_idx, &last_idx);
EXPECT_EQ(7, first_idx); // Token } is first and only token.
EXPECT_EQ(7, last_idx);
}
TEST_CASE(Context) {
const int kNumVariables = 5;
const Context& parent_context = Context::Handle(Context::New(0));
EXPECT_EQ(parent_context.isolate(), Isolate::Current());
const Context& context = Context::Handle(Context::New(kNumVariables));
context.set_parent(parent_context);
const Context& check_parent_context = Context::Handle(context.parent());
EXPECT_EQ(context.isolate(), check_parent_context.isolate());
EXPECT_EQ(kNumVariables, context.num_variables());
EXPECT(Context::Handle(context.parent()).raw() == parent_context.raw());
EXPECT_EQ(0, Context::Handle(context.parent()).num_variables());
EXPECT(Context::Handle(Context::Handle(context.parent()).parent()).IsNull());
Object& variable = Object::Handle(context.At(0));
EXPECT(variable.IsNull());
variable = context.At(kNumVariables - 1);
EXPECT(variable.IsNull());
context.SetAt(0, Smi::Handle(Smi::New(2)));
context.SetAt(2, Smi::Handle(Smi::New(3)));
Smi& smi = Smi::Handle();
smi ^= context.At(0);
EXPECT_EQ(2, smi.Value());
smi ^= context.At(2);
EXPECT_EQ(3, smi.Value());
}
TEST_CASE(ContextScope) {
const intptr_t parent_scope_function_level = 0;
LocalScope* parent_scope =
new LocalScope(NULL, parent_scope_function_level, 0);
const intptr_t local_scope_function_level = 1;
LocalScope* local_scope =
new LocalScope(parent_scope, local_scope_function_level, 0);
const Type& dynamic_type = Type::ZoneHandle(Type::DynamicType());
const String& a = String::ZoneHandle(Symbols::New("a"));
LocalVariable* var_a =
new LocalVariable(Scanner::kDummyTokenIndex, a, dynamic_type);
parent_scope->AddVariable(var_a);
const String& b = String::ZoneHandle(Symbols::New("b"));
LocalVariable* var_b =
new LocalVariable(Scanner::kDummyTokenIndex, b, dynamic_type);
local_scope->AddVariable(var_b);
const String& c = String::ZoneHandle(Symbols::New("c"));
LocalVariable* var_c =
new LocalVariable(Scanner::kDummyTokenIndex, c, dynamic_type);
parent_scope->AddVariable(var_c);
bool test_only = false; // Please, insert alias.
var_a = local_scope->LookupVariable(a, test_only);
EXPECT(var_a->is_captured());
EXPECT_EQ(parent_scope_function_level, var_a->owner()->function_level());
EXPECT(local_scope->LocalLookupVariable(a) == var_a); // Alias.
var_b = local_scope->LookupVariable(b, test_only);
EXPECT(!var_b->is_captured());
EXPECT_EQ(local_scope_function_level, var_b->owner()->function_level());
EXPECT(local_scope->LocalLookupVariable(b) == var_b);
test_only = true; // Please, do not insert alias.
var_c = local_scope->LookupVariable(c, test_only);
EXPECT(!var_c->is_captured());
EXPECT_EQ(parent_scope_function_level, var_c->owner()->function_level());
// c is not in local_scope.
EXPECT(local_scope->LocalLookupVariable(c) == NULL);
test_only = false; // Please, insert alias.
var_c = local_scope->LookupVariable(c, test_only);
EXPECT(var_c->is_captured());
EXPECT_EQ(3, local_scope->num_variables()); // a, b, and c alias.
EXPECT_EQ(2, local_scope->NumCapturedVariables()); // a, c alias.
const int first_parameter_index = 0;
const int num_parameters = 0;
const int first_frame_index = -1;
LocalScope* loop_owner = parent_scope;
LocalScope* context_owner = NULL; // No context allocated yet.
int next_frame_index = parent_scope->AllocateVariables(first_parameter_index,
num_parameters,
first_frame_index,
loop_owner,
&context_owner);
EXPECT_EQ(first_frame_index, next_frame_index); // a and c not in frame.
EXPECT_EQ(parent_scope, context_owner); // parent_scope allocated a context.
const intptr_t parent_scope_context_level = 1;
EXPECT_EQ(parent_scope_context_level, parent_scope->context_level());
const intptr_t local_scope_context_level = 5;
const ContextScope& context_scope = ContextScope::Handle(
local_scope->PreserveOuterScope(local_scope_context_level));
LocalScope* outer_scope = LocalScope::RestoreOuterScope(context_scope);
EXPECT_EQ(2, outer_scope->num_variables());
var_a = outer_scope->LocalLookupVariable(a);
EXPECT(var_a->is_captured());
EXPECT_EQ(0, var_a->index()); // First index.
EXPECT_EQ(parent_scope_context_level - local_scope_context_level,
var_a->owner()->context_level()); // Adjusted context level.
// var b was not captured.
EXPECT(outer_scope->LocalLookupVariable(b) == NULL);
var_c = outer_scope->LocalLookupVariable(c);
EXPECT(var_c->is_captured());
EXPECT_EQ(1, var_c->index());
EXPECT_EQ(parent_scope_context_level - local_scope_context_level,
var_c->owner()->context_level()); // Adjusted context level.
}
TEST_CASE(Closure) {
// Allocate the class first.
const String& class_name = String::Handle(Symbols::New("MyClass"));
const Script& script = Script::Handle();
const Class& cls =
Class::Handle(Class::New(class_name, script, Scanner::kDummyTokenIndex));
const Array& functions = Array::Handle(Array::New(1));
const Context& context = Context::Handle(Context::New(0));
Function& parent = Function::Handle();
const String& parent_name = String::Handle(Symbols::New("foo_papa"));
parent = Function::New(parent_name, RawFunction::kRegularFunction,
false, false, false, false, cls, 0);
functions.SetAt(0, parent);
cls.SetFunctions(functions);
Function& function = Function::Handle();
const String& function_name = String::Handle(Symbols::New("foo"));
function = Function::NewClosureFunction(function_name, parent, 0);
const Class& signature_class = Class::Handle(
Class::NewSignatureClass(function_name, function, script, 0));
const Instance& closure = Instance::Handle(Closure::New(function, context));
const Class& closure_class = Class::Handle(closure.clazz());
EXPECT(closure_class.IsSignatureClass());
EXPECT(closure_class.IsCanonicalSignatureClass());
EXPECT_EQ(closure_class.raw(), signature_class.raw());
const Function& signature_function =
Function::Handle(signature_class.signature_function());
EXPECT_EQ(signature_function.raw(), function.raw());
const Context& closure_context = Context::Handle(Closure::context(closure));
EXPECT_EQ(closure_context.raw(), closure_context.raw());
}
TEST_CASE(ObjectPrinting) {
// Simple Smis.
EXPECT_STREQ("2", Smi::Handle(Smi::New(2)).ToCString());
EXPECT_STREQ("-15", Smi::Handle(Smi::New(-15)).ToCString());
// bool class and true/false values.
ObjectStore* object_store = Isolate::Current()->object_store();
const Class& bool_class = Class::Handle(object_store->bool_class());
EXPECT_STREQ("Library:'dart:core' Class: bool",
bool_class.ToCString());
EXPECT_STREQ("true", Bool::True().ToCString());
EXPECT_STREQ("false", Bool::False().ToCString());
// Strings.
EXPECT_STREQ("Sugarbowl",
String::Handle(String::New("Sugarbowl")).ToCString());
}
TEST_CASE(CheckedHandle) {
// Ensure that null handles have the correct C++ vtable setup.
const String& str1 = String::Handle();
EXPECT(str1.IsString());
EXPECT(str1.IsNull());
const String& str2 = String::CheckedHandle(Object::null());
EXPECT(str2.IsString());
EXPECT(str2.IsNull());
String& str3 = String::Handle();
str3 ^= Object::null();
EXPECT(str3.IsString());
EXPECT(str3.IsNull());
EXPECT(!str3.IsOneByteString());
str3 = String::New("Steep and Deep!");
EXPECT(str3.IsString());
EXPECT(str3.IsOneByteString());
str3 = OneByteString::null();
EXPECT(str3.IsString());
EXPECT(!str3.IsOneByteString());
}
static Function* CreateFunction(const char* name) {
const String& class_name = String::Handle(Symbols::New("ownerClass"));
const Script& script = Script::Handle();
const Class& owner_class =
Class::Handle(Class::New(class_name, script, Scanner::kDummyTokenIndex));
const String& function_name = String::ZoneHandle(Symbols::New(name));
Function& function = Function::ZoneHandle(
Function::New(function_name, RawFunction::kRegularFunction,
true, false, false, false, owner_class, 0));
return &function;
}
// Test for Code and Instruction object creation.
TEST_CASE(Code) {
extern void GenerateIncrement(Assembler* assembler);
Assembler _assembler_;
GenerateIncrement(&_assembler_);
Code& code = Code::Handle(Code::FinalizeCode(
*CreateFunction("Test_Code"), &_assembler_));
Instructions& instructions = Instructions::Handle(code.instructions());
uword entry_point = instructions.EntryPoint();
intptr_t retval = 0;
#if defined(USING_SIMULATOR)
retval = bit_copy<intptr_t, int64_t>(Simulator::Current()->Call(
static_cast<int32_t>(entry_point), 0, 0, 0, 0));
#else
typedef intptr_t (*IncrementCode)();
retval = reinterpret_cast<IncrementCode>(entry_point)();
#endif
EXPECT_EQ(2, retval);
EXPECT_EQ(instructions.raw(), Instructions::FromEntryPoint(entry_point));
}
// Test for Embedded String object in the instructions.
TEST_CASE(EmbedStringInCode) {
extern void GenerateEmbedStringInCode(Assembler* assembler, const char* str);
const char* kHello = "Hello World!";
word expected_length = static_cast<word>(strlen(kHello));
Assembler _assembler_;
GenerateEmbedStringInCode(&_assembler_, kHello);
Code& code = Code::Handle(Code::FinalizeCode(
*CreateFunction("Test_EmbedStringInCode"), &_assembler_));
Instructions& instructions = Instructions::Handle(code.instructions());
uword retval = 0;
#if defined(USING_SIMULATOR)
retval = bit_copy<uword, int64_t>(Simulator::Current()->Call(
static_cast<int32_t>(instructions.EntryPoint()), 0, 0, 0, 0));
#else
typedef uword (*EmbedStringCode)();
retval = reinterpret_cast<EmbedStringCode>(instructions.EntryPoint())();
#endif
EXPECT((retval & kSmiTagMask) == kHeapObjectTag);
String& string_object = String::Handle();
string_object ^= reinterpret_cast<RawInstructions*>(retval);
EXPECT(string_object.Length() == expected_length);
for (int i = 0; i < expected_length; i ++) {
EXPECT(string_object.CharAt(i) == kHello[i]);
}
}
// Test for Embedded Smi object in the instructions.
TEST_CASE(EmbedSmiInCode) {
extern void GenerateEmbedSmiInCode(Assembler* assembler, intptr_t value);
const intptr_t kSmiTestValue = 5;
Assembler _assembler_;
GenerateEmbedSmiInCode(&_assembler_, kSmiTestValue);
Code& code = Code::Handle(Code::FinalizeCode(
*CreateFunction("Test_EmbedSmiInCode"), &_assembler_));
Instructions& instructions = Instructions::Handle(code.instructions());
intptr_t retval = 0;
#if defined(USING_SIMULATOR)
retval = bit_copy<intptr_t, int64_t>(Simulator::Current()->Call(
static_cast<int32_t>(instructions.EntryPoint()), 0, 0, 0, 0));
#else
typedef intptr_t (*EmbedSmiCode)();
retval = reinterpret_cast<EmbedSmiCode>(instructions.EntryPoint())();
#endif
EXPECT((retval >> kSmiTagShift) == kSmiTestValue);
}
#if defined(ARCH_IS_64_BIT)
// Test for Embedded Smi object in the instructions.
TEST_CASE(EmbedSmiIn64BitCode) {
extern void GenerateEmbedSmiInCode(Assembler* assembler, intptr_t value);
const intptr_t kSmiTestValue = 5L << 32;
Assembler _assembler_;
GenerateEmbedSmiInCode(&_assembler_, kSmiTestValue);
Code& code = Code::Handle(Code::FinalizeCode(
*CreateFunction("Test_EmbedSmiIn64BitCode"), &_assembler_));
Instructions& instructions = Instructions::Handle(code.instructions());
intptr_t retval = 0;
#if defined(USING_SIMULATOR)
retval = bit_copy<intptr_t, int64_t>(Simulator::Current()->Call(
static_cast<int32_t>(instructions.EntryPoint()), 0, 0, 0, 0));
#else
typedef intptr_t (*EmbedSmiCode)();
retval = reinterpret_cast<EmbedSmiCode>(instructions.EntryPoint())();
#endif
EXPECT((retval >> kSmiTagShift) == kSmiTestValue);
}
TEST_CASE(ExceptionHandlers) {
const int kNumEntries = 4;
// Add an exception handler table to the code.
ExceptionHandlers& exception_handlers = ExceptionHandlers::Handle();
exception_handlers ^= ExceptionHandlers::New(kNumEntries);
exception_handlers.SetHandlerInfo(0, -1, 20);
exception_handlers.SetHandlerInfo(1, 0, 30);
exception_handlers.SetHandlerInfo(2, -1, 40);
exception_handlers.SetHandlerInfo(3, 1, 150);
extern void GenerateIncrement(Assembler* assembler);
Assembler _assembler_;
GenerateIncrement(&_assembler_);
Code& code = Code::Handle(Code::FinalizeCode(
*CreateFunction("Test_Code"), &_assembler_));
code.set_exception_handlers(exception_handlers);
// Verify the exception handler table entries by accessing them.
const ExceptionHandlers& handlers =
ExceptionHandlers::Handle(code.exception_handlers());
EXPECT_EQ(kNumEntries, handlers.Length());
RawExceptionHandlers::HandlerInfo info;
handlers.GetHandlerInfo(0, &info);
EXPECT_EQ(-1, handlers.OuterTryIndex(0));
EXPECT_EQ(-1, info.outer_try_index);
EXPECT_EQ(20, handlers.HandlerPC(0));
EXPECT_EQ(20, info.handler_pc);
EXPECT_EQ(1, handlers.OuterTryIndex(3));
EXPECT_EQ(150, handlers.HandlerPC(3));
}
TEST_CASE(PcDescriptors) {
const int kNumEntries = 6;
// Add PcDescriptors to the code.
PcDescriptors& descriptors = PcDescriptors::Handle();
descriptors ^= PcDescriptors::New(kNumEntries);
descriptors.AddDescriptor(0, 10, PcDescriptors::kOther, 1, 20, 1);
descriptors.AddDescriptor(1, 20, PcDescriptors::kDeopt, 2, 30, 0);
descriptors.AddDescriptor(2, 30, PcDescriptors::kOther, 3, 40, 1);
descriptors.AddDescriptor(3, 10, PcDescriptors::kOther, 4, 40, 2);
descriptors.AddDescriptor(4, 10, PcDescriptors::kOther, 5, 80, 3);
descriptors.AddDescriptor(5, 80, PcDescriptors::kOther, 6, 150, 3);
extern void GenerateIncrement(Assembler* assembler);
Assembler _assembler_;
GenerateIncrement(&_assembler_);
Code& code = Code::Handle(Code::FinalizeCode(
*CreateFunction("Test_Code"), &_assembler_));
code.set_pc_descriptors(descriptors);
// Verify the PcDescriptor entries by accessing them.
const PcDescriptors& pc_descs = PcDescriptors::Handle(code.pc_descriptors());
EXPECT_EQ(