public ProgNode Parse(string code)
{
lex.init(code);
ProgNode prg = new ProgNode();
StmtNode stmt = parseStmt();
while (stmt != null)
{
prg.stmts.Add(stmt);
stmt = parseStmt();
}
return(prg);
}
public static void Check(ProgNode tree)
{
errors.Clear();
funcs.Clear();
cnsts.Clear();
funcs.Add(new FncDecStmtNode()
{
ID = new LexUnit()
{
lexeme = "cos"
}, paramList = new List <LexUnit>()
{
new LexUnit()
{
lexeme = "x"
}
}
});
funcs.Add(new FncDecStmtNode()
{
ID = new LexUnit()
{
lexeme = "sin"
}, paramList = new List <LexUnit>()
{
new LexUnit()
{
lexeme = "x"
}
}
});
funcs.Add(new FncDecStmtNode()
{
ID = new LexUnit()
{
lexeme = "tan"
}, paramList = new List <LexUnit>()
{
new LexUnit()
{
lexeme = "x"
}
}
});
funcs.Add(new FncDecStmtNode()
{
ID = new LexUnit()
{
lexeme = "sqrt"
}, paramList = new List <LexUnit>()
{
new LexUnit()
{
lexeme = "x"
}
}
});
funcs.Add(new FncDecStmtNode()
{
ID = new LexUnit()
{
lexeme = "ln"
}, paramList = new List <LexUnit>()
{
new LexUnit()
{
lexeme = "x"
}
}
});
funcs.Add(new FncDecStmtNode()
{
ID = new LexUnit()
{
lexeme = "log"
}, paramList = new List <LexUnit>()
{
new LexUnit()
{
lexeme = "x"
}
}
});
funcs.Add(new FncDecStmtNode()
{
ID = new LexUnit()
{
lexeme = "abs"
}, paramList = new List <LexUnit>()
{
new LexUnit()
{
lexeme = "x"
}
}
});
cnsts.Push("pi");
cnsts.Push("e");
foreach (var stmt in tree.stmts)
{
Check(stmt);
}
}