public void ReturnInElse()
{
var builder = new StatementListBuilder();
builder
.Add(0, "P = Pawn(TheActor)")
.AddJumpIfNot(16, 36, "P != None")
.AddReturn(27, "P")
.AddJump(33, 81)
.Add(36, "C = Controller(TheActor)")
.AddReturn(52, "C != None ? C.Pawn : None");
VerifyText(builder,
"P = Pawn(TheActor);",
"if (P != None)",
"{",
" return P;",
"}",
"else",
"{",
" C = Controller(TheActor);",
" return C != None ? C.Pawn : None;",
"}");
}
//------------------------------------------------------------
// FUNCBREC.BindCollectionInitializer
//
/// <summary></summary>
/// <param name="newNode"></param>
/// <param name="typeSym"></param>
/// <param name="locVarSym"></param>
/// <param name="objectExpr"></param>
/// <param name="builder"></param>
/// <returns></returns>
//------------------------------------------------------------
internal EXPR BindCollectionInitializer(
NEWNODE newNode,
BASENODE elementsNode,
TYPESYM typeSym,
LOCVARSYM locVarSym,
EXPR leftExpr,
EXPR rightExpr,
StatementListBuilder builder)
{
DebugUtil.Assert(newNode != null && typeSym != null && builder != null);
DebugUtil.Assert(locVarSym != null || leftExpr != null || rightExpr != null);
string addMethName = Compiler.NameManager.GetPredefinedName(PREDEFNAME.ADD);
//--------------------------------------------------------
// typeSym should implement IEnumerable.
//--------------------------------------------------------
AGGTYPESYM enumerableSym = HasIEnumerable(typeSym);
if (enumerableSym == null)
{
Compiler.Error(
newNode.TypeNode,
CSCERRID.ERR_CollectInitRequiresIEnumerable,
new ErrArg(typeSym));
return(rightExpr);
}
TYPESYM paramTypeSym = null;
TypeArray typeArgs = enumerableSym.TypeArguments;
if (typeArgs != null && typeArgs.Count > 0)
{
DebugUtil.Assert(typeArgs.Count == 1);
paramTypeSym = typeArgs[0];
}
else
{
paramTypeSym
= Compiler.GetReqPredefAgg(PREDEFTYPE.OBJECT, true).GetThisType();
if (typeArgs == null)
{
typeArgs = new TypeArray();
}
typeArgs.Add(paramTypeSym);
typeArgs = Compiler.MainSymbolManager.AllocParams(typeArgs);
}
BindFlagsEnum bindFlags = BindFlagsEnum.RValueRequired;
string localFormat = "<{0}><{1}>__local";
//--------------------------------------------------------
// Bind the local variable.
//--------------------------------------------------------
if (leftExpr == null)
{
if (locVarSym == null)
{
string locName
= String.Format(localFormat, typeSym.Name, (this.localCount)++);
locVarSym = Compiler.LocalSymbolManager.CreateLocalSym(
SYMKIND.LOCVARSYM,
locName,
this.currentScopeSym) as LOCVARSYM;
locVarSym.TypeSym = typeSym;
locVarSym.LocSlotInfo.HasInit = true;
locVarSym.DeclTreeNode = newNode;
StoreInCache(newNode, locName, locVarSym, null, true);
}
leftExpr = BindToLocal(
newNode,
locVarSym,
bindFlags | BindFlagsEnum.MemberSet);
}
//--------------------------------------------------------
// If objectExpr is not null, assign it to the local variable.
//--------------------------------------------------------
if (rightExpr != null)
{
EXPR assignLocExpr = BindAssignment(
newNode,
leftExpr,
rightExpr,
false);
builder.Add(SetNodeStmt(newNode, MakeStmt(newNode, assignLocExpr, 0)));
}
//--------------------------------------------------------
// Get "Add" method.
//--------------------------------------------------------
MemberLookup mem = new MemberLookup();
if (!mem.Lookup(
Compiler,
typeSym,
leftExpr,
this.parentDeclSym,
addMethName,
0,
MemLookFlagsEnum.UserCallable))
{
Compiler.Error(
newNode.TypeNode,
CSCERRID.ERR_NoSuchMember,
new ErrArg(typeSym),
new ErrArg("Add"));
return(NewError(newNode, null));
}
if (mem.FirstSym == null || !mem.FirstSym.IsMETHSYM)
{
return(NewError(newNode, null));
}
TypeArray typeGroup = mem.GetAllTypes();
EXPRMEMGRP grpExpr = NewExpr(
newNode,
EXPRKIND.MEMGRP,
Compiler.MainSymbolManager.MethodGroupTypeSym) as EXPRMEMGRP;
grpExpr.Name = addMethName;
grpExpr.SymKind = SYMKIND.METHSYM;
grpExpr.TypeArguments = BSYMMGR.EmptyTypeArray;
grpExpr.ParentTypeSym = typeSym;
grpExpr.MethPropSym = null;
grpExpr.ObjectExpr = leftExpr;
grpExpr.ContainingTypeArray = typeGroup;
grpExpr.Flags |= EXPRFLAG.USERCALLABLE;
//--------------------------------------------------------
// Add each value.
//--------------------------------------------------------
DebugUtil.Assert(newNode.InitialNode != null);
#if false
BASENODE node = null;
switch (newNode.InitialNode.Kind)
{
case NODEKIND.DECLSTMT:
node = (newNode.InitialNode as DECLSTMTNODE).VariablesNode;
break;
case NODEKIND.UNOP:
node = (newNode.InitialNode as UNOPNODE).Operand;
break;
default:
DebugUtil.Assert(false);
break;
}
#endif
BASENODE node = elementsNode;
while (node != null)
{
BASENODE elementNode;
if (node.Kind == NODEKIND.LIST)
{
elementNode = node.AsLIST.Operand1;
node = node.AsLIST.Operand2;
}
else
{
elementNode = node;
node = null;
}
//----------------------------------------------------
// Bind the elements
//----------------------------------------------------
EXPR elementExpr = BindExpr(
elementNode,
BindFlagsEnum.RValueRequired);
//----------------------------------------------------
// Add the elements
//----------------------------------------------------
EXPR addExpr = BindGrpToArgs(newNode, bindFlags, grpExpr, elementExpr);
if (addExpr != null)
{
builder.Add(SetNodeStmt(newNode, MakeStmt(newNode, addExpr, 0)));
}
}
return(leftExpr);
}
//------------------------------------------------------------
// FUNCBREC.BindObjectInitializer
//
/// <summary></summary>
/// <param name="newNode"></param>
/// <param name="typeSym"></param>
/// <param name="locVarSym"></param>
/// <param name="objectExpr"></param>
/// <param name="builder"></param>
/// <returns></returns>
//------------------------------------------------------------
internal EXPR BindObjectInitializer(
NEWNODE newNode,
TYPESYM typeSym,
LOCVARSYM locVarSym,
EXPR objectExpr,
StatementListBuilder builder)
{
DebugUtil.Assert(newNode != null && typeSym != null && builder != null);
DebugUtil.Assert(
(locVarSym != null && objectExpr == null) ||
(locVarSym == null && objectExpr != null));
BindFlagsEnum bindFlags = BindFlagsEnum.RValueRequired;
string localFormat = "<{0}><{1}>__local";
//--------------------------------------------------------
// Bind the local variable.
//--------------------------------------------------------
if (locVarSym == null)
{
string typeName = typeSym.IsAGGTYPESYM ?
(typeSym as AGGTYPESYM).GetAggregate().Name :
typeSym.Name;
string locName = String.Format(localFormat, typeName, (this.localCount)++);
locVarSym = Compiler.LocalSymbolManager.CreateLocalSym(
SYMKIND.LOCVARSYM,
locName,
this.currentScopeSym) as LOCVARSYM;
locVarSym.TypeSym = typeSym;
locVarSym.LocSlotInfo.HasInit = true;
locVarSym.DeclTreeNode = newNode;
StoreInCache(newNode, locName, locVarSym, null, true);
}
EXPR locVarExpr = BindToLocal(
newNode,
locVarSym,
bindFlags | BindFlagsEnum.MemberSet);
//--------------------------------------------------------
// If objectExpr is not null, assign it to the local variable.
//--------------------------------------------------------
if (objectExpr != null)
{
EXPR assignLocExpr = BindAssignment(
newNode,
locVarExpr,
objectExpr,
false);
builder.Add(SetNodeStmt(newNode, MakeStmt(newNode, assignLocExpr, 0)));
}
//--------------------------------------------------------
// Assign each value.
//--------------------------------------------------------
DECLSTMTNODE decNode = newNode.InitialNode as DECLSTMTNODE;
DebugUtil.Assert(decNode != null);
BASENODE node = decNode.VariablesNode;
while (node != null)
{
VARDECLNODE varDecl;
if (node.Kind == NODEKIND.LIST)
{
varDecl = node.AsLIST.Operand1 as VARDECLNODE;
node = node.AsLIST.Operand2;
}
else
{
varDecl = node as VARDECLNODE;
node = null;
}
BINOPNODE assignNode = varDecl.ArgumentsNode as BINOPNODE;
if (assignNode == null ||
assignNode.Operator != OPERATOR.ASSIGN ||
assignNode.Operand1 == null ||
assignNode.Operand1.Kind != NODEKIND.NAME ||
assignNode.Operand2 == null)
{
continue;
}
//----------------------------------------------------
// LHS
//----------------------------------------------------
NAMENODE nameNode = assignNode.Operand1 as NAMENODE;
DebugUtil.Assert(nameNode != null);
bindFlags = BindFlagsEnum.MemberSet;
MemberLookup mem = new MemberLookup();
EXPR leftExpr = null;
if (mem.Lookup(
Compiler,
typeSym,
locVarExpr,
this.parentDeclSym,
nameNode.Name,
0,
MemLookFlagsEnum.UserCallable))
{
SymWithType swt = mem.FirstSymWithType;
DebugUtil.Assert(swt != null && swt.IsNotNull);
switch (swt.Sym.Kind)
{
case SYMKIND.MEMBVARSYM:
leftExpr = BindToField(
assignNode,
locVarExpr,
FieldWithType.Convert(swt),
bindFlags);
break;
case SYMKIND.PROPSYM:
leftExpr = BindToProperty(
assignNode,
locVarExpr,
PropWithType.Convert(swt),
bindFlags,
null,
null);
break;
default:
leftExpr = NewError(nameNode, null);
break;
}
}
else
{
mem.ReportErrors(nameNode);
leftExpr = NewError(nameNode, null);
}
//----------------------------------------------------
// Collection initializer
//----------------------------------------------------
if (assignNode.Operand2.Kind == NODEKIND.ARRAYINIT)
{
if (!leftExpr.TypeSym.IsARRAYSYM)
{
BindCollectionInitializer(
newNode,
(assignNode.Operand2 as UNOPNODE).Operand,
leftExpr.TypeSym, //typeSym,
null, //locVarSym,
leftExpr,
null,
builder);
continue;
}
}
//----------------------------------------------------
// RHS
//----------------------------------------------------
EXPR rightExpr = BindExpr(
assignNode.Operand2,
BindFlagsEnum.RValueRequired);
//----------------------------------------------------
// Assign
//----------------------------------------------------
EXPR assignExpr = BindAssignment(
assignNode,
leftExpr,
rightExpr,
false);
builder.Add(SetNodeStmt(decNode, MakeStmt(decNode, assignExpr, 0)));
}
return(locVarExpr);
}