public void Visit(NFunDefList node)
{
foreach (NFunDef nFunDef in node)
{
Visit((dynamic)nFunDef);
}
}
// Appends NFunDef to nFunDefList
public void FunDef(NFunDefList nFunDefList)
{
NFunDef nFunDef = new NFunDef()
{
AnchorToken = Expect(TokenCategory.IDENTIFIER)
};
NParameterList nParameterList = new NParameterList();
Expect(TokenCategory.PARENTHESIS_LEFT);
if (CurrentToken == TokenCategory.IDENTIFIER)
{
nParameterList.Add(new NParameter()
{
AnchorToken = Expect(TokenCategory.IDENTIFIER)
});
while (CurrentToken == TokenCategory.COMMA)
{
Expect(TokenCategory.COMMA);
nParameterList.Add(new NParameter()
{
AnchorToken = Expect(TokenCategory.IDENTIFIER)
});
}
}
Expect(TokenCategory.PARENTHESIS_RIGHT);
Expect(TokenCategory.CURLY_BRACE_LEFT);
NVarDefList nVarDefList = (NVarDefList)VarDefList();
NStmtList nStmtList = (NStmtList)StmtList();
Expect(TokenCategory.CURLY_BRACE_RIGHT);
nFunDef.Add(nParameterList);
nFunDef.Add(nVarDefList);
nFunDef.Add(nStmtList);
nFunDefList.Add(nFunDef);
}
public string Visit(NFunDefList nFunDefList)
{
string retVal = "";
foreach (NFunDef nFunDef in nFunDefList)
{
retVal += Visit((dynamic)nFunDef);
}
return(retVal);
}
//-----------------------------------------------------------
public string Visit(NProgram nProgram)
{
NVarDefList nVarDefList = (NVarDefList)nProgram[0];
NFunDefList nFunDefList = (NFunDefList)nProgram[1];
return("// Code generated by the int64 compiler.\n\n"
+ ".assembly 'int64' {}\n\n"
+ ".assembly extern 'int64lib' {}\n\n"
+ ".class public 'Int64Program' extends ['mscorlib']'System'.'Object' {\n"
+ Visit((dynamic)nVarDefList)
+ Visit((dynamic)nFunDefList)
+ "}\n");
}
public void Visit(NFunDefList node)
{
foreach (NFunDef funDef in node)
{
FunctionSym newFuncSym = new FunctionSym(funDef.AnchorToken, FunctionSymKind.USER_DEFINED);
// Add parameters to local scope
foreach (NParameter param in funDef[0])
{
VariableSym newParam = new VariableSym(param.AnchorToken, VariableSymKind.PARAMETER);
newFuncSym.AddLocalVariable(newParam);
}
// Add variables to local scope
foreach (NVarDef variable in funDef[1])
{
VariableSym newVariable = new VariableSym(variable.AnchorToken, VariableSymKind.REGULAR);
newFuncSym.AddLocalVariable(newVariable);
}
semanticAnalyzer.AddFunction(newFuncSym);
}
}
// Returns NProgram
public Node Program()
{
NProgram nProgram = new NProgram();
NVarDefList nVarDefList = new NVarDefList();
NFunDefList nFunDefList = new NFunDefList();
while (firstOfProgram.Contains(CurrentToken))
{
if (CurrentToken == TokenCategory.VAR)
{
VarDef(nVarDefList);
}
else if (CurrentToken == TokenCategory.IDENTIFIER)
{
FunDef(nFunDefList);
}
else if (CurrentToken == TokenCategory.EOF)
{
break;
}
else
{
throw new SyntaxError(firstOfProgram, tokenStream.Current);
}
}
if (!firstOfProgram.Contains(CurrentToken))
{
throw new SyntaxError(new HashSet <TokenCategory>()
{
TokenCategory.IDENTIFIER,
TokenCategory.VAR,
TokenCategory.EOF
}
, tokenStream.Current);
}
nProgram.Add(nVarDefList);
nProgram.Add(nFunDefList);
return(nProgram);
}
public void Visit(NFunDefList node)
{
Console.WriteLine($"+++++++++++++++ NFUNDEFLIST ++++++++++++++++");
VisitChildren(node);
}