TEST(StringTest, Ensure16Bit) {
String string8("8bit");
EXPECT_TRUE(string8.is8Bit());
string8.ensure16Bit();
EXPECT_FALSE(string8.is8Bit());
EXPECT_EQ("8bit", string8);
String string16(reinterpret_cast<const UChar*>(u"16bit"));
EXPECT_FALSE(string16.is8Bit());
string16.ensure16Bit();
EXPECT_FALSE(string16.is8Bit());
EXPECT_EQ("16bit", string16);
String empty8(StringImpl::empty());
EXPECT_TRUE(empty8.is8Bit());
empty8.ensure16Bit();
EXPECT_FALSE(empty8.is8Bit());
EXPECT_TRUE(empty8.isEmpty());
EXPECT_FALSE(empty8.isNull());
String empty16(StringImpl::empty16Bit());
EXPECT_FALSE(empty16.is8Bit());
empty16.ensure16Bit();
EXPECT_FALSE(empty16.is8Bit());
EXPECT_TRUE(empty16.isEmpty());
EXPECT_FALSE(empty16.isNull());
String nullString;
nullString.ensure16Bit();
EXPECT_TRUE(nullString.isNull());
}
/*
* vm_peek pops the top value off the value stack, and then pushes it
* back. The value is returned from this function.
*/
uint16_t
vm_peek(machine vm)
{
uint16_t val;
if (NULL == vm)
return 0;
if (NULL == vm->vals)
return 0;
if (empty16(vm->vals))
return 0;
val = pop16(vm->vals);
push16(vm->vals, val);
return val;
}
