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DBG: fixed uglyness in ExpressionParser

This commit is contained in:
Mr. eXoDia 2015-06-08 01:00:10 +02:00
parent a0be994c5a
commit 6447ec0139
2 changed files with 11 additions and 28 deletions
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28
x64_dbg_dbg/expressionparser.cpp
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@ -306,7 +306,7 @@ static inline int mulhi(int x, int y)
#endif //__MINGW64__
template<typename T>
static bool operation(const ExpressionParser::Token::Type type, const T op1, const T op2, T & result)
static bool operation(const ExpressionParser::Token::Type type, const T op1, const T op2, T & result, const bool signedcalc)
{
result = 0;
switch(type)
@ -321,6 +321,9 @@ static bool operation(const ExpressionParser::Token::Type type, const T op1, con
result = op1 * op2;
return true;
case ExpressionParser::Token::Type::OperatorHiMul:
if(signedcalc)
result = mulhi(op1, op2);
else
result = umulhi(op1, op2);
return true;
case ExpressionParser::Token::Type::OperatorDiv:
@ -365,35 +368,16 @@ static bool operation(const ExpressionParser::Token::Type type, const T op1, con
bool ExpressionParser::unsignedoperation(const Token::Type type, const uint op1, const uint op2, uint & result)
{
if(type == Token::Type::OperatorHiMul)
{
result = umulhi(op1, op2);
return true;
}
else
return operation<uint>(type, op1, op2, result);
return operation<uint>(type, op1, op2, result, false);
}
bool ExpressionParser::signedoperation(const Token::Type type, const sint op1, const sint op2, uint & result)
{
if(type == Token::Type::OperatorHiMul)
{
result = mulhi(op1, op2);
return true;
}
else
{
sint signedResult;
if(!operation<sint>(type, op1, op2, signedResult))
if(!operation<sint>(type, op1, op2, signedResult, true))
return false;
result = (uint)signedResult;
return true;
}
}
bool ExpressionParser::valFromString(const String & data, uint & value)
{
return sscanf_s(data.c_str(), "%u", &value) == 1;
}
bool ExpressionParser::calculate(uint & value, bool signedcalc, bool silent, bool baseonly, int* value_size, bool* isvar, bool* hexonly)

1
x64_dbg_dbg/expressionparser.h
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@ -59,7 +59,6 @@ private:
void addOperatorToken(const char ch, const Token::Type type);
bool unsignedoperation(const Token::Type type, const uint op1, const uint op2, uint & result);
bool signedoperation(const Token::Type type, const sint op1, const sint op2, uint & result);
bool valFromString(const String & data, uint & value);
std::vector<Token> _tokens;
std::vector<Token> _prefixTokens;