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implement String.prototype.indexOf

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Signed-off-by: seonghyun kim <sh8281.kim@samsung.com>
This commit is contained in:
seonghyun kim 2016-12-13 13:54:43 +09:00
commit c95e2ee004
6 changed files with 83 additions and 13 deletions
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30
src/runtime/GlobalObjectBuiltinString.cpp
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@ -39,6 +39,31 @@ static Value builtinStringToString(ExecutionState& state, Value thisValue, size_
RELEASE_ASSERT_NOT_REACHED();
}
static Value builtinStringIndexOf(ExecutionState& state, Value thisValue, size_t argc, Value* argv, bool isNewExpression)
{
RESOLVE_THIS_BINDING_TO_STRING(str, String, indexOf);
String* searchStr = argv[0].toString(state);
Value val;
if (argc > 1) {
val = argv[1];
}
size_t pos;
if (val.isUndefined()) {
pos = 0;
} else {
pos = val.toInteger(state);
}
size_t len = str->length();
size_t start = std::min(std::max(pos, (size_t)0), len);
size_t result = str->find(searchStr, start);
if (result == SIZE_MAX)
return Value(-1);
else
return Value(result);
}
void GlobalObject::installString(ExecutionState& state)
{
@ -51,8 +76,13 @@ void GlobalObject::installString(ExecutionState& state)
m_stringPrototype = m_objectPrototype;
m_stringPrototype = new StringObject(state, String::emptyString);
m_stringPrototype->setPrototype(state, m_objectPrototype);
m_stringPrototype->defineOwnPropertyThrowsException(state, ObjectPropertyName(state.context()->staticStrings().toString),
Object::ObjectPropertyDescriptorForDefineOwnProperty(new FunctionObject(state, NativeFunctionInfo(state.context()->staticStrings().toString, builtinStringToString, 0, nullptr, NativeFunctionInfo::Strict)), (ObjectPropertyDescriptor::PresentAttribute)(ObjectPropertyDescriptor::WritablePresent | ObjectPropertyDescriptor::EnumerablePresent)));
m_stringPrototype->defineOwnPropertyThrowsException(state, ObjectPropertyName(state.context()->staticStrings().indexOf),
Object::ObjectPropertyDescriptorForDefineOwnProperty(new FunctionObject(state, NativeFunctionInfo(state.context()->staticStrings().indexOf, builtinStringIndexOf, 1, nullptr, NativeFunctionInfo::Strict)), (ObjectPropertyDescriptor::PresentAttribute)(ObjectPropertyDescriptor::WritablePresent | ObjectPropertyDescriptor::EnumerablePresent)));
m_string->setFunctionPrototype(state, m_stringPrototype);
defineOwnProperty(state, ObjectPropertyName(state.context()->staticStrings().String),