public override void CaseADelegateInvokeExp(ADelegateInvokeExp node)
{
//Build a list of the possible methods
AASourceFile currentFile = Util.GetAncestor <AASourceFile>(node);
List <AMethodDecl> methods = new List <AMethodDecl>();
ANamedType type = (ANamedType)finalTrans.data.ExpTypes[node.GetReceiver()];
AMethodDecl delegateMethod = finalTrans.data.DelegateTypeLinks[type];
foreach (KeyValuePair <ADelegateExp, AMethodDecl> delegateCreationPair in finalTrans.data.DelegateCreationMethod)
{
if (TypeChecking.Assignable(delegateCreationPair.Key.GetType(), type))
{
if (!methods.Contains(delegateCreationPair.Value))
{
methods.Add(delegateCreationPair.Value);
}
}
}
MoveMethodDeclsOut mover;
if (methods.Count == 0)
{
//Can only remove it if the return value is unused
if (!(node.Parent() is AExpStm))
{
finalTrans.errors.Add(new ErrorCollection.Error(node.GetToken(),
currentFile,
"No possible methods found for delegate invoke."));
throw new ParserException(node.GetToken(), "Delegates.OutADelegateInvokeExp");
}
mover = new MoveMethodDeclsOut("delegateVar", finalTrans.data);
foreach (Node arg in node.GetArgs())
{
arg.Apply(mover);
}
node.Parent().Parent().RemoveChild(node.Parent());
foreach (PStm stm in mover.NewStatements)
{
stm.Apply(this);
}
return;
}
if (methods.Count == 1)
{
ASimpleInvokeExp invoke = new ASimpleInvokeExp(new TIdentifier("renameMe"), new ArrayList());
while (node.GetArgs().Count > 0)
{
invoke.GetArgs().Add(node.GetArgs()[0]);
}
//If we have a struct method, add the pointer from the delegate
if (finalTrans.data.StructMethods.Any(str => str.Value.Contains(methods[0])))
{
AStructDecl targetStr = finalTrans.data.StructMethods.First(str => str.Value.Contains(methods[0])).Key;
AMethodDecl getPointerDecl = GetPointerMethod(targetStr.GetDimention() != null);
ASimpleInvokeExp getPointerInvoke = new ASimpleInvokeExp(new TIdentifier("renameMe"), new ArrayList()
{
node.GetReceiver()
});
invoke.GetArgs().Add(getPointerInvoke);
finalTrans.data.SimpleMethodLinks[getPointerInvoke] = getPointerDecl;
finalTrans.data.ExpTypes[getPointerInvoke] = getPointerDecl.GetReturnType();
}
finalTrans.data.SimpleMethodLinks[invoke] = methods[0];
finalTrans.data.ExpTypes[invoke] = methods[0].GetReturnType();
node.ReplaceBy(invoke);
return;
}
//Multiple methods. Make
/*
* <Methods moved out from reciever>
* string delegate = GetMethodPart(<reciever>);
* if (delegate == "...")
* {
* Foo(...);
* }
* else if (delegate == "...")
* {
* Bar(..., GetPointerPart(<reciever>);
* }
* else if(...)
* ...
* else
* {
* UIDisplayMessage(PlayerGroupAll(), c_messageAreaDebug, StringToText("[<file>:<line>]: No methods matched delegate."));
* int i = 1/0;
* return;
* }
*
*/
AABlock block = new AABlock(new ArrayList(), new TRBrace("}"));
mover = new MoveMethodDeclsOut("delegateVar", finalTrans.data);
node.GetReceiver().Apply(mover);
AMethodDecl methodPartMethod = GetMethodMethod();
ASimpleInvokeExp methodPartInvoke = new ASimpleInvokeExp(new TIdentifier("GetMethodPart"),
new ArrayList()
{
Util.MakeClone(node.GetReceiver(),
finalTrans.data)
});
finalTrans.data.SimpleMethodLinks[methodPartInvoke] = methodPartMethod;
finalTrans.data.ExpTypes[methodPartInvoke] = methodPartMethod.GetReturnType();
AALocalDecl methodPartDecl = new AALocalDecl(new APublicVisibilityModifier(), null, null, null, null,
new ANamedType(new TIdentifier("string"), null),
new TIdentifier("methodPart"), methodPartInvoke);
block.GetStatements().Add(new ALocalDeclStm(new TSemicolon(";"), methodPartDecl));
//If the invoke's return value is used, get the lvalue
PLvalue leftSide;
if (node.Parent() is AALocalDecl)
{
leftSide = new ALocalLvalue(new TIdentifier("renameMe"));
finalTrans.data.LocalLinks[(ALocalLvalue)leftSide] = (AALocalDecl)node.Parent();
finalTrans.data.LvalueTypes[leftSide] = new ANamedType(new TIdentifier("string"), null);
PStm pStm = Util.GetAncestor <PStm>(node);
AABlock pBlock = (AABlock)pStm.Parent();
pBlock.GetStatements().Insert(pBlock.GetStatements().IndexOf(pStm) + 1, new ABlockStm(new TLBrace("{"), block));
node.Parent().RemoveChild(node);
}
else if (node.Parent() is AAssignmentExp)
{
AAssignmentExp assignExp = (AAssignmentExp)node.Parent();
leftSide = assignExp.GetLvalue();
leftSide.Apply(mover);
PStm pStm = Util.GetAncestor <PStm>(node);
pStm.ReplaceBy(new ABlockStm(new TLBrace("{"), block));
}
else if (node.Parent() is AExpStm)
{
//No assignments needed
leftSide = null;
node.Parent().ReplaceBy(new ABlockStm(new TLBrace("{"), block));
}
else
{
//Create a new local
AALocalDecl leftSideDecl = new AALocalDecl(new APublicVisibilityModifier(), null, null, null, null,
Util.MakeClone(delegateMethod.GetReturnType(),
finalTrans.data),
new TIdentifier("delegateVar"), null);
ALocalLvalue leftSideLink = new ALocalLvalue(new TIdentifier("delegateVar"));
ALvalueExp leftSideLinkExp = new ALvalueExp(leftSideLink);
PStm pStm = Util.GetAncestor <PStm>(node);
AABlock pBlock = (AABlock)pStm.Parent();
pBlock.GetStatements().Insert(pBlock.GetStatements().IndexOf(pStm), new ABlockStm(new TLBrace("{"), block));
node.ReplaceBy(leftSideLinkExp);
finalTrans.data.LocalLinks[leftSideLink] = leftSideDecl;
finalTrans.data.LvalueTypes[leftSideLink] =
finalTrans.data.ExpTypes[leftSideLinkExp] = leftSideDecl.GetType();
leftSide = leftSideLink;
block.GetStatements().Add(new ALocalDeclStm(new TSemicolon(";"), leftSideDecl));
}
ABlockStm elseBranch;
//Make final else branch
/* {
* UIDisplayMessage(PlayerGroupAll(), c_messageAreaDebug, StringToText("<file>[<line>, <pos>]: No methods matched delegate."));
* IntToString(1/0);
* return;
* }
*/
{
AABlock innerBlock = new AABlock(new ArrayList(), new TRBrace("}"));
ASimpleInvokeExp playerGroupInvoke = new ASimpleInvokeExp(new TIdentifier("PlayerGroupAll"), new ArrayList());
AFieldLvalue messageAreaLink = new AFieldLvalue(new TIdentifier("c_messageAreaDebug"));
ALvalueExp messageAreaLinkExp = new ALvalueExp(messageAreaLink);
AStringConstExp stringConst =
new AStringConstExp(
new TStringLiteral("\"" + currentFile.GetName().Text.Replace('\\', '/') + "[" +
node.GetToken().Line + ", " + node.GetToken().Pos +
"]: Got a null delegate.\""));
ASimpleInvokeExp stringToTextInvoke = new ASimpleInvokeExp(new TIdentifier("StringToText"),
new ArrayList()
{
stringConst
});
ASimpleInvokeExp displayMessageInvoke = new ASimpleInvokeExp(new TIdentifier("UIDisplayMessage"),
new ArrayList()
{
playerGroupInvoke,
messageAreaLinkExp,
stringToTextInvoke
});
AIntConstExp intConst1 = new AIntConstExp(new TIntegerLiteral("1"));
AIntConstExp intConst2 = new AIntConstExp(new TIntegerLiteral("0"));
ABinopExp binop = new ABinopExp(intConst1, new ADivideBinop(new TDiv("/")), intConst2);
ASimpleInvokeExp intToStringInvoke = new ASimpleInvokeExp(new TIdentifier("IntToString"),
new ArrayList()
{
binop
});
innerBlock.GetStatements().Add(new AExpStm(new TSemicolon(";"), displayMessageInvoke));
innerBlock.GetStatements().Add(new AExpStm(new TSemicolon(";"), intToStringInvoke));
//innerBlock.GetStatements().Add(new AVoidReturnStm(new TReturn("return")));
elseBranch = new ABlockStm(new TLBrace("{"), innerBlock);
finalTrans.data.SimpleMethodLinks[playerGroupInvoke] =
finalTrans.data.Libraries.Methods.First(m => m.GetName().Text == playerGroupInvoke.GetName().Text);
finalTrans.data.SimpleMethodLinks[stringToTextInvoke] =
finalTrans.data.Libraries.Methods.First(m => m.GetName().Text == stringToTextInvoke.GetName().Text);
finalTrans.data.SimpleMethodLinks[displayMessageInvoke] =
finalTrans.data.Libraries.Methods.First(m => m.GetName().Text == displayMessageInvoke.GetName().Text);
finalTrans.data.SimpleMethodLinks[intToStringInvoke] =
finalTrans.data.Libraries.Methods.First(m => m.GetName().Text == intToStringInvoke.GetName().Text);
finalTrans.data.FieldLinks[messageAreaLink] =
finalTrans.data.Libraries.Fields.First(m => m.GetName().Text == messageAreaLink.GetName().Text);
finalTrans.data.ExpTypes[playerGroupInvoke] =
finalTrans.data.SimpleMethodLinks[playerGroupInvoke].GetReturnType();
finalTrans.data.LvalueTypes[messageAreaLink] =
finalTrans.data.ExpTypes[messageAreaLinkExp] =
finalTrans.data.FieldLinks[messageAreaLink].GetType();
finalTrans.data.ExpTypes[stringToTextInvoke] =
finalTrans.data.SimpleMethodLinks[stringToTextInvoke].GetReturnType();
finalTrans.data.ExpTypes[stringConst] =
finalTrans.data.ExpTypes[intToStringInvoke] = new ANamedType(new TIdentifier("string"), null);
finalTrans.data.ExpTypes[displayMessageInvoke] = new AVoidType();
finalTrans.data.ExpTypes[intConst1] =
finalTrans.data.ExpTypes[intConst2] =
finalTrans.data.ExpTypes[binop] = new ANamedType(new TIdentifier("int"), null);
}
foreach (AMethodDecl method in methods)
{
/* * if (delegate == "...")
* {
* Foo(...);
* }
* else if (delegate == "...")
* {
* Bar(..., GetPointerPart(<reciever>);
* }
* else if(...)
* ...
*/
AABlock innerBlock = new AABlock(new ArrayList(), new TRBrace("}"));
ASimpleInvokeExp invoke = new ASimpleInvokeExp(new TIdentifier(method.GetName().Text), new ArrayList());
for (int i = 0; i < node.GetArgs().Count; i++)
{
PExp arg = (PExp)node.GetArgs()[i];
invoke.GetArgs().Add(Util.MakeClone(arg, finalTrans.data));
}
//If we have a struct method, add the pointer from the delegate
if (finalTrans.data.StructMethods.Any(str => str.Value.Contains(method)))
{
AStructDecl targetStr = finalTrans.data.StructMethods.First(str => str.Value.Contains(method)).Key;
AMethodDecl getPointerDecl = GetPointerMethod(targetStr.GetDimention() != null);
ASimpleInvokeExp getPointerInvoke = new ASimpleInvokeExp(new TIdentifier("renameMe"), new ArrayList()
{
Util.MakeClone(node.GetReceiver(), data)
});
invoke.GetArgs().Add(getPointerInvoke);
finalTrans.data.SimpleMethodLinks[getPointerInvoke] = getPointerDecl;
finalTrans.data.ExpTypes[getPointerInvoke] = getPointerDecl.GetReturnType();
}
finalTrans.data.SimpleMethodLinks[invoke] = method;
finalTrans.data.ExpTypes[invoke] = method.GetReturnType();
if (leftSide == null)
{
innerBlock.GetStatements().Add(new AExpStm(new TSemicolon(";"), invoke));
}
else
{
AAssignmentExp assignment = new AAssignmentExp(new TAssign("="), Util.MakeClone(leftSide, finalTrans.data), invoke);
finalTrans.data.ExpTypes[assignment] = finalTrans.data.ExpTypes[invoke];
innerBlock.GetStatements().Add(new AExpStm(new TSemicolon(";"), assignment));
}
ALocalLvalue methodPartLink = new ALocalLvalue(new TIdentifier("methodPart"));
ALvalueExp methodPartLinkExp = new ALvalueExp(methodPartLink);
AStringConstExp stringConst = new AStringConstExp(new TStringLiteral("\"" + GetName(method) + "\""));
finalTrans.data.LocalLinks[methodPartLink] = methodPartDecl;
finalTrans.data.LvalueTypes[methodPartLink] =
finalTrans.data.ExpTypes[methodPartLinkExp] =
finalTrans.data.ExpTypes[stringConst] = new ANamedType(new TIdentifier("string"), null);
ABinopExp binop = new ABinopExp(methodPartLinkExp, new AEqBinop(new TEq("==")), stringConst);
finalTrans.data.ExpTypes[binop] = new ANamedType(new TIdentifier("bool"), null);
AIfThenElseStm ifThenElse = new AIfThenElseStm(new TLParen("("), binop, new ABlockStm(new TLBrace("{"), innerBlock), elseBranch);
elseBranch = new ABlockStm(new TLBrace("{"), new AABlock(new ArrayList()
{
ifThenElse
}, new TRBrace("}")));
}
block.GetStatements().Add(elseBranch);
}
