blob: 19a2835e91a3401abdc69800ea22a03a7c5a08a5 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
|
#pragma once
#include <string>
#include <cstring>
#include <sstream>
#include "Scanner.h"
#include "Generator.h"
#include "Token.h"
namespace pim
{
namespace compiler
{
class ParserExpectException: public std::exception
{
char * error;
public:
ParserExpectException(Token token, int expectingSymbol) {
error = strdup(std::string("Expecting " + Token::SymbolNames[expectingSymbol] + " got " + token.Source).c_str());
}
ParserExpectException(Token token, std::string expectingString) {
error = strdup(std::string("Expecting " + expectingString + " got " + token.Source).c_str());
}
const char * what() const throw()
{
return error;
}
~ParserExpectException() throw() {};
};
class Parser
{
std::stringstream & source;
Generator * generator;
Scanner * scanner;
Token token;
Token lastToken;
std::string breakLabel;
std::string continueLabel;
std::stack<Token> previousTokens;
void program();
void functionList();
void function();
void functionCall();
void block();
void argumentList();
void argument();
void declarationList();
void declaration();
void identifierList();
void statementList();
void statement();
void neighbourStatement();
void ifStatement();
void condition(std::string jumpLabel);
void assigmentStatement();
void particleAction();
void killStatement();
void getStatement();
void createStatement();
void transformStatement();
void expressionList();
void expression();
void term();
void factor();
void variableValue();
Token forward();
bool accept(int symbol);
bool look(int symbol);
void back();
void expect(int symbol);
public:
Parser(std::stringstream & source_);
std::vector<unsigned char> Compile();
};
}
}
|
