Files
asarium 1588644fec Add variables concept to expressions
This also includes the necessary setup work for using "position" and
"direction" in action expressions.
2021-01-10 22:47:49 +01:00

39 lines
802 B
C++

#pragma once
#include "actions/expression/ParseContext.h"
#include "actions/expression/Value.h"
#include <Parser.h>
#include <Token.h>
namespace actions {
namespace expression {
namespace nodes {
class AbstractExpression {
public:
AbstractExpression(antlr4::Token* token);
virtual ~AbstractExpression();
virtual Value execute(const ProgramVariables& variables) const = 0;
virtual bool validate(antlr4::Parser* parser, const ParseContext& context) = 0;
virtual void validationDone();
ValueType getExpressionType() const;
antlr4::Token* getToken() const;
protected:
virtual ValueType determineReturnType() const = 0;
antlr4::Token* m_token = nullptr;
mutable ValueType m_cachedType = ValueType::Invalid;
};
} // namespace nodes
} // namespace expression
} // namespace actions