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#include "Lexer.h"
#include "Parser.h"
#include "ASTPrinter.h"
#include "ASTInterpreter.h"
#include <iostream>
#include <cstring>
void RunParseCalc()
{
IPLVector<Token> tokens;
//Tokenize("var a = 0; var b = a + 123;a+b;", tokens);
Tokenize("var a = 5; if(a == 5){a++;}", tokens);
// TODO make actual test :D
auto expr = Parse(tokens);
//ASTPrinter p(std::cout);
//expr->Accept(p);
ASTInterpreter i;
std::cout << "Running" << std::endl;
auto result = i.Run(expr.get());
std::cout << "Stack after run, top to bottom:" << std::endl;
while (!result.empty()) {
std::cout << result.back() << std::endl;
result.pop_back();
}
std::cout << "S = " << i.ModifyVariable("a") << std::endl;
}
class InterpreterPrinter : public ASTInterpreter::Printer
{
public:
virtual void PrintVariable(const char* name, double value) override
{
std::cout << name << ": " << value << std::endl;
}
};
void InteractiveInterpreter()
{
char command[1000];
ASTInterpreter i;
InterpreterPrinter p;
do
{
std::cin.getline(command, 1000);
if (std::strcmp(command, "exit") == 0)
{
break;
}
if (std::strcmp(command, "print") == 0)
{
i.Print(p);
continue;
}
IPLVector<Token> tokens;
Tokenize(command, tokens);
auto result = i.Run(Parse(tokens).get());
while (!result.empty()) {
std::cout << result.back() << std::endl;
result.pop_back();
}
} while (true);
}
int main()
{
//RunParseCalc();
InteractiveInterpreter();
#if defined(_WIN32)
std::system("pause");
#endif
return 0;
}
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