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#include <algorithm>
#include <cctype>
#include <iostream>
#include <list>
#include <map>
#include <string>
#include <string_view>
#include <tuple>
#include "ast.hpp"
#include "llvm.hpp"
#include "parser.hpp"
#include "var.hpp"
static LLVMState llvmState;
static std::list<ThunkAST> scope;
static bool parseString(std::string_view sv);
int main()
{
Var::pushScope();
std::string line;
while (std::cin.good()) {
std::getline(std::cin, line);
parseString(line);
//std::cout << std::endl;
}
llvmState.output();
std::cout << std::endl;
}
bool parseString(std::string_view sv)
{
do {
const auto [nsv, tok] = nextToken(sv);
//printToken(tok);
if (tok == Token::none && !nsv.empty()) {
std::cerr << "unknown " << nsv << std::endl;
break;
} else {
std::unique_ptr<BaseAST> expr;
switch (tok) {
case Token::ThunkOpen:
if (scope.empty())
scope.emplace_back(llvmState, "main");
else
scope.emplace_back(llvmState);
Var::pushScope();
break;
case Token::ThunkClose:
{
auto& thunk = scope.back();
auto gen = thunk.codegen(llvmState);
Var::popScope();
Var::addLocal(thunk.name, Var {gen, true});
expr.reset(new PushAST {thunk.name});
scope.pop_back();
}
break;
case Token::Quote:
break;
case Token::PopVar:
expr.reset(new PopAST {name});
break;
case Token::PushVar:
expr.reset(new PushAST {name});
break;
case Token::Var:
expr.reset(new CallAST {name});
break;
case Token::Number:
expr.reset(new NumberAST {name});
break;
case Token::none:
break;
}
if (expr && !scope.empty()) {
expr->codegen(llvmState);
//scope.back().body.emplace_back().swap(expr);
}
}
sv = nsv;
} while (!sv.empty());
return true;
}
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