// @todo - how does the numbering here work? Start at 0 or 1?
// does it include the 'this' parameter
public System.Type ParamCLRType(int iParam)
{
// Parameter can be either a actual type or a reference to a type
if (this.Node != null)
{
ParamVarExpEntry sym = Node.Params[iParam].ParamSymbol;
return(sym.m_type.CLRType);
}
else if (this.Info != null)
{
return(Info.GetParameters()[iParam].ParameterType);
}
else
{
return(null);
}
} // end ParamCLRType
public ParamVarDecl(Identifier idName, NonRefTypeSig tType, EArgFlow eFlow) : base(idName, tType)
{
m_eFlow = eFlow;
// Update tType to include the Ref/Out
if (m_eFlow == EArgFlow.cOut || m_eFlow == EArgFlow.cRef)
{
this.m_tType = new RefTypeSig(tType);
}
m_symbol = new ParamVarExpEntry();
}
// Semantic checking
public override void ResolveMember(
TypeEntry symDefiningClass,
ISemanticResolver s,
ICLRtypeProvider provider
)
{
//TypeEntry tRetType = null;
if (!IsCtor)
{
m_tRetType.ResolveType(s);
//tRetType = m_tRetType.TypeRec;
}
else
{
ClassDecl nodeClass = symDefiningClass.Node;
if (Mods.IsStatic)
{
// Checks on static ctors
if (this.Params.Length != 0)
{
//s.ThrowError_NoParamsOnStaticCtor(this);
ThrowError(SymbolError.NoParamsOnStaticCtor(this));
}
// Rename to avoid a naming collision w/ a default ctor.
// Since no one will call a static ctor (and codegen ignores ctor names),
// we can pick anything here.
//this.m_strName = "$static_ctor";
this.m_idName = new Identifier("$static_ctor", m_idName.Location);
// Is there a static field initializer to chain to?
if (nodeClass.StaticInitMethod != null)
{
/*
Statement stmt = new ExpStatement(
new MethodCallExp(
null,
new Identifier(nodeClass.StaticInitMethod.Name, nodeClass.StaticInitMethod.Location),
new ArgExp[0]
));
*/
// If there are Static, ReadOnly fields, then they must be assigned directly
// in a constructor, not in a function called by the constructor.
Statement stmt = nodeClass.StaticInitMethod.Body;
Body.InjectStatementAtHead(stmt);
}
} // static ctor
else
{
if (nodeClass.InstanceInitMethod != null)
{
// Chain to an instance-field initializer if we don't chain to
// a this() ctor.
CtorChainStatement chain = (this.Body.Statements[0]) as CtorChainStatement;
Debug.Assert(chain != null);
if (chain.TargetType == CtorChainStatement.ETarget.cBase)
{
/*
Statement stmt = new MethodCallStatement(
new MethodCallExp(
null,
new Identifier(nodeClass.InstanceInitMethod.Name, nodeClass.InstanceInitMethod.Location),
new ArgExp[0]
));
*/
// PEVerify barfs if we try to do an instance method call in the ctor,
// so just inject the raw method body. It's just a bunch of assigns anyway,
// so we're ok.
Statement stmt = nodeClass.InstanceInitMethod.Body;
Body.InjectStatementAtHead(stmt);
}
}
} // instance ctor
}
// Add new sym entry to our parent class's scope
MethodExpEntry m = new MethodExpEntry(
Name,
this,
symDefiningClass,
IsCtor ? null : m_tRetType.BlueType
);
m.m_scope = new Scope(
"method: " + symDefiningClass.m_strName + "." + Name,
this,
symDefiningClass.MemberScope);
m_symbol = m;
//s.PushScope(m.m_scope);
Scope prev = s.SetCurrentContext(m.m_scope);
// resolve params (because we'll need them for overloading)
// Add param 0 for 'this' (if not static)
// For structs, "this" is a reference, for classes, it's a value.
if (!Mods.IsStatic)
{
ParamVarExpEntry e = new ParamVarExpEntry();
e.m_strName = "this";
TypeEntry t = m_symbol.SymbolClass;
if (t.IsStruct)
{
t = new RefTypeEntry(t, s);
}
e.m_type = t; // 'this' is the type of the containg class
e.CodeGenSlot = 0;
s.GetCurrentContext().AddSymbol(e);
}
// do rest of the params
foreach(ParamVarDecl param in m_arParams)
{
param.ResolveVarDecl(s);
}
//s.PopScope(m.m_scope);
s.RestoreContext(prev);
symDefiningClass.AddMethodToScope(m);
}