public override ASTNode VisitEnumdef([NotNull] llangParser.EnumdefContext context)
{
string name = context.Iden().GetText();
var items = new Dictionary <string, long>();
long curval = 0;
if (context.enumDeclList() != null)
{
var ctx = context.enumDeclList().GetChild <llangParser.EnumDeclItemContext>(0);
for (int i = 1; ctx != null; i++)
{
VarDeclNode v = (VarDeclNode)Visit(ctx);
if (v.rhs != null)
{
curval = v.rhs.IntValue + 1;
}
else
{
v.rhs = new IntExprNode(curval++, v.sourceLoc);
}
items.Add(v.name, v.rhs.IntValue);
ctx = context.enumDeclList().GetChild <llangParser.EnumDeclItemContext>(i);
}
}
return(new EnumDefNode(name, TypeSymbol.ENUM_SYMBOL(name, items), MakeSourceLoc(context)));
}
public object VisitVarDeclNode(VarDeclNode n)
{
WriteLine(n.kind + " - " + n.name + ":" + n.Type.Name);
Indent();
Visit(n.rhs);
Dedent();
return(null);
}
public override object VisitVarDeclNode(VarDeclNode n)
{
TypeSymbol ts = MakeTypeSymbolForString(n.Type.Name);
Visit(n.rhs);
if (ts == null)
{
ts = n.rhs.Type;
}
n.Type = ts;
varTypes.PutInScope(n.name, ts);
return(null);
}
public override ASTNode VisitStructdef([NotNull] llangParser.StructdefContext context)
{
string name = context.Iden().GetText();
List <Expression> defaultValues = new List <Expression>();
var fields = new Dictionary <string, (TypeSymbol, int)>();
if (context.structDeclList() != null)
{
for (int i = 0; i < context.structDeclList().ChildCount; i++)
{
VarDeclNode s = (VarDeclNode)Visit(context.structDeclList().GetChild(i));
fields.Add(s.name, (s.Type, 0));
defaultValues.Add(s.rhs);
}
}
TypeSymbol ownType = TypeSymbol.STRUCT_SYMBOL(name, 0, fields);
return(new StructDefNode(name, ownType, defaultValues, MakeSourceLoc(context))); // Technically useless for Codegen
}
public override MIPSRegister VisitVarDeclNode(VarDeclNode n)
{
var varloc = vars.IsInScope(n.name);
if (n.rhs != null)
{
var rhs = Gen(n.rhs);
if (varloc.SecondSet)
{
// store the value to the stack
emit.EmitLoadStore("sw", rhs, varloc.Second, rm.FP);
}
else
{
// store the value in the register
emit.Emit("add", varloc.First, rhs, rm.ZERO);
}
}
return(null);
}
public override ASTNode VisitGlobalVar([NotNull] llangParser.GlobalVarContext context)
{
VarDeclNode n = (VarDeclNode)Visit(context.varDeclStmt());
return(new GlobalVarDefNode(n.name, n.rhs, n.Type, MakeSourceLoc(context)));
}
public override LLVMRegister VisitVarDeclNode(VarDeclNode n)
{
throw new NotImplementedException();
}
public override object VisitVarDeclNode(VarDeclNode n)
{
Visit(n.rhs);
semanticChecker.CheckAndReport(varTypes.PutInScope(n.name, n.Type), n.sourceLoc, $"Variable {n.name} already declared");
return(null);
}
public override LData VisitVarDeclNode(VarDeclNode n)
{
Vars.PutInScope(n.name, Visit(n.rhs));
return(null);
}
public override int VisitVarDeclNode(VarDeclNode n)
{
return(1);
}
public virtual T VisitVarDeclNode(VarDeclNode n)
{
T a = n.rhs.Accept(this);
return(default(T));
}