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Code Issues Projects Releases Packages Wiki Activity Actions 38

added basic arithmetic

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This commit is contained in:
Marc Zinnschlag 2010-06-29 16:11:19 +02:00
parent ca8002e533
commit 48f6ad0f89
9 changed files with 454 additions and 83 deletions
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33
components/compiler/exprparser.hpp
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@ -15,25 +15,34 @@ namespace Compiler
class ExprParser : public Parser
{
struct Operand
{
char mType;
int mInteger;
float mFloat;
};
Locals& mLocals;
Literals& mLiterals;
std::vector<Operand> mOperands;
std::vector<char> mOperands;
std::vector<char> mOperators;
bool mNextOperand;
TokenLoc mTokenLoc;
std::vector<Interpreter::Type_Code> mCode;
char popUnaryOperator();
///< returns 0 and not popping, if the next operator isn't unary
int getPriority (char op) const;
char popOperand (std::vector<Interpreter::Type_Code>& code);
char getOperandType (int Index = 0) const;
char getOperator() const;
void popOperator();
void popOperand();
void replaceBinaryOperands();
void pop();
void pushIntegerLiteral (int value);
void pushFloatLiteral (float value);
void pushBinaryOperator (char c);
public:
ExprParser (ErrorHandler& errorHandler, Context& context, Locals& locals,
@ -67,7 +76,7 @@ namespace Compiler
void reset();
///< Reset parser to clean state.
char write (std::vector<Interpreter::Type_Code>& code);
char append (std::vector<Interpreter::Type_Code>& code);
///< Generate code for parsed expression.
/// \return Type ('l': integer, 'f': float)
};