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implement String.prototype.match, parseInt

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Signed-off-by: seonghyun kim <sh8281.kim@samsung.com>
This commit is contained in:
seonghyun kim 2016-12-14 18:54:46 +09:00
commit c22735e9b3
9 changed files with 276 additions and 22 deletions
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131
src/runtime/GlobalObjectBuiltinString.cpp
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@ -90,7 +90,7 @@ static Value builtinStringSubstring(ExecutionState& state, Value thisValue, size
return state.context()->staticStrings().asciiTable[c].string();
}
}
return str->subString(from, to - from);
return str->subString(from, to);
}
}
@ -286,6 +286,132 @@ static Value builtinStringReplace(ExecutionState& state, Value thisValue, size_t
RELEASE_ASSERT_NOT_REACHED();
}
static Value builtinStringSplit(ExecutionState& state, Value thisValue, size_t argc, Value* argv, bool isNewExpression)
{
// 1, 2, 3
RESOLVE_THIS_BINDING_TO_STRING(S, String, split);
ArrayObject* A = new ArrayObject(state);
// 4, 5
size_t lengthA = 0;
size_t lim;
if (argv[1].isUndefined()) {
lim = Value::InvalidIndexValue - 1;
} else {
lim = argv[1].toUint32(state);
}
// 6, 7
size_t s = S->length(), p = 0;
// 8
Value separator = argv[0];
PointerValue* P;
if (separator.isPointerValue() && separator.asPointerValue()->isRegExpObject()) {
P = separator.asPointerValue()->asRegExpObject();
} else {
P = separator.toString(state);
}
// 9
if (lim == 0)
return A;
// 10
if (separator.isUndefined()) {
A->defineOwnProperty(state, ObjectPropertyName(state, Value(0)), ObjectPropertyDescriptorForDefineOwnProperty(S, ObjectPropertyDescriptorForDefineOwnProperty::AllPresent));
return A;
}
std::function<Value(String*, int, String*)> splitMatchUsingStr;
splitMatchUsingStr = [](String* S, int q, String* R) -> Value {
int s = S->length();
int r = R->length();
if (q + r > s)
return Value(false);
for (int i = 0; i < r; i++)
if (S->charAt(q + i) != R->charAt(i))
return Value(false);
return Value(q + r);
};
// 11
if (s == 0) {
bool ret = true;
if (P->isRegExpObject()) {
RegexMatchResult result;
ret = P->asRegExpObject()->matchNonGlobally(state, S, result, false, 0);
} else {
Value z = splitMatchUsingStr(S, 0, P->asString());
if (z.isBoolean()) {
ret = z.asBoolean();
}
}
if (ret)
return A;
A->defineOwnProperty(state, ObjectPropertyName(state, Value(0)), ObjectPropertyDescriptorForDefineOwnProperty(S, ObjectPropertyDescriptorForDefineOwnProperty::AllPresent));
return A;
}
// 12
size_t q = p;
// 13
if (P->isRegExpObject()) {
RegExpObject* R = P->asRegExpObject();
while (q != s) {
RegexMatchResult result;
bool ret = R->matchNonGlobally(state, S, result, false, (size_t)q);
if (!ret) {
break;
}
if ((size_t)result.m_matchResults[0][0].m_end == p) {
q++;
} else {
if (result.m_matchResults[0][0].m_start >= S->length())
break;
String* T = S->subString(p, result.m_matchResults[0][0].m_start);
A->defineOwnProperty(state, ObjectPropertyName(state, Value(lengthA++)), ObjectPropertyDescriptorForDefineOwnProperty(T, ObjectPropertyDescriptorForDefineOwnProperty::AllPresent));
if (lengthA == lim)
return A;
p = result.m_matchResults[0][0].m_end;
R->pushBackToRegExpMatchedArray(state, A, lengthA, lim, result, S);
if (lengthA == lim)
return A;
q = p;
}
}
} else {
String* R = P->asString();
while (q != s) {
Value e = splitMatchUsingStr(S, q, R);
if (e == Value(false))
q++;
else {
if ((size_t)e.asInt32() == p)
q++;
else {
if (q >= S->length())
break;
String* T = S->subString(p, q);
A->defineOwnProperty(state, ObjectPropertyName(state, Value(lengthA++)), ObjectPropertyDescriptorForDefineOwnProperty(T, ObjectPropertyDescriptorForDefineOwnProperty::AllPresent));
if (lengthA == lim)
return A;
p = e.asInt32();
q = p;
}
}
}
}
// 14, 15, 16
String* T = S->subString(p, s);
A->defineOwnProperty(state, ObjectPropertyName(state, Value(lengthA)), ObjectPropertyDescriptorForDefineOwnProperty(T, ObjectPropertyDescriptorForDefineOwnProperty::AllPresent));
return A;
}
static Value builtinStringCharCodeAt(ExecutionState& state, Value thisValue, size_t argc, Value* argv, bool isNewExpression)
{
RESOLVE_THIS_BINDING_TO_STRING(str, String, indexOf);
@ -399,6 +525,9 @@ void GlobalObject::installString(ExecutionState& state)
m_stringPrototype->defineOwnPropertyThrowsException(state, ObjectPropertyName(state.context()->staticStrings().replace),
ObjectPropertyDescriptorForDefineOwnProperty(new FunctionObject(state, NativeFunctionInfo(state.context()->staticStrings().replace, builtinStringReplace, 2, nullptr, NativeFunctionInfo::Strict)), (ObjectPropertyDescriptorForDefineOwnProperty::PresentAttribute)(ObjectPropertyDescriptorForDefineOwnProperty::WritablePresent | ObjectPropertyDescriptorForDefineOwnProperty::ConfigurablePresent)));
m_stringPrototype->defineOwnPropertyThrowsException(state, ObjectPropertyName(state.context()->staticStrings().split),
ObjectPropertyDescriptorForDefineOwnProperty(new FunctionObject(state, NativeFunctionInfo(state.context()->staticStrings().split, builtinStringSplit, 2, nullptr, NativeFunctionInfo::Strict)), (ObjectPropertyDescriptorForDefineOwnProperty::PresentAttribute)(ObjectPropertyDescriptorForDefineOwnProperty::WritablePresent | ObjectPropertyDescriptorForDefineOwnProperty::ConfigurablePresent)));
m_stringPrototype->defineOwnPropertyThrowsException(state, ObjectPropertyName(state.context()->staticStrings().charCodeAt),
ObjectPropertyDescriptorForDefineOwnProperty(new FunctionObject(state, NativeFunctionInfo(state.context()->staticStrings().charCodeAt, builtinStringCharCodeAt, 1, nullptr, NativeFunctionInfo::Strict)), (ObjectPropertyDescriptorForDefineOwnProperty::PresentAttribute)(ObjectPropertyDescriptorForDefineOwnProperty::WritablePresent | ObjectPropertyDescriptorForDefineOwnProperty::ConfigurablePresent)));