public IMethodReference Map(R.IMethodSymbol methodSymbol)
{
Contract.Requires(methodSymbol != null);
IMethodReference mr = null;
if (!methodSymbolCache.TryGetValue(methodSymbol, out mr))
{
List <IParameterTypeInformation> ps = methodSymbol.Parameters.Count == 0 ? null : new List <IParameterTypeInformation>();
if (methodSymbol.IsGenericMethod && methodSymbol.ConstructedFrom != methodSymbol)
{
var gArgs = new List <ITypeReference>();
foreach (var a in methodSymbol.TypeArguments)
{
gArgs.Add(Map(a));
}
mr = new Microsoft.Cci.MutableCodeModel.GenericMethodInstanceReference()
{
CallingConvention = methodSymbol.IsStatic ? CallingConvention.Default : CallingConvention.HasThis,
ContainingType = Map(methodSymbol.ContainingType),
GenericArguments = gArgs,
GenericMethod = Map(methodSymbol.ConstructedFrom),
GenericParameterCount = (ushort)methodSymbol.TypeParameters.Count,
InternFactory = this.host.InternFactory,
Name = this.nameTable.GetNameFor(methodSymbol.Name),
Parameters = ps,
Type = Map(methodSymbol.ReturnType),
};
}
else
{
var m = new Microsoft.Cci.MutableCodeModel.MethodReference();
// IMPORTANT: Have to add it to the cache before doing anything else because it may
// get looked up if it is generic and a parameter's type involves the generic
// method parameter.
this.methodSymbolCache.Add(methodSymbol, m);
m.CallingConvention = methodSymbol.IsStatic ? CallingConvention.Default : CallingConvention.HasThis;
m.ContainingType = Map(methodSymbol.ContainingType);
m.InternFactory = this.host.InternFactory;
m.Name = this.nameTable.GetNameFor(methodSymbol.Name);
m.Parameters = ps;
m.Type = Map(methodSymbol.ReturnType);
mr = m;
}
foreach (var p in methodSymbol.Parameters)
{
var p_prime = new ParameterTypeInformation()
{
ContainingSignature = mr,
Index = (ushort)p.Ordinal,
Type = Map(p.Type),
};
ps.Add(p_prime);
}
}
return(mr);
}
/// <summary>
/// Returns a method whose body is empty, but which can be replaced with the real body when it is
/// available.
/// </summary>
/// <remarks>
/// Public because it needs to get called when an anonymous delegate is encountered
/// while translating a method body. Just mapping the anonymous delegate doesn't
/// provide the information needed. The parameters of a method reference are not
/// IParameterDefinitions.
/// </remarks>
public MethodDefinition TranslateMetadata(R.IMethodSymbol methodSymbol)
{
Contract.Requires(methodSymbol != null);
Contract.Ensures(Contract.Result <MethodDefinition>() != null);
var containingType = (ITypeDefinition)this.typeSymbolCache[methodSymbol.ContainingType];
var isConstructor = methodSymbol.MethodKind == R.CommonMethodKind.Constructor;
List <IParameterDefinition> parameters = new List <IParameterDefinition>();
var m = new MethodDefinition()
{
CallingConvention = methodSymbol.IsStatic ? CallingConvention.Default : CallingConvention.HasThis,
ContainingTypeDefinition = containingType,
InternFactory = this.host.InternFactory,
IsHiddenBySignature = true, // REVIEW
IsNewSlot = containingType.IsInterface, // REVIEW
IsRuntimeSpecial = isConstructor,
IsSpecialName = isConstructor,
IsStatic = methodSymbol.IsStatic,
IsVirtual = containingType.IsInterface, // REVIEW: Why doesn't using methodSymbol.Virtual work for interface methods?
Locations = Helper.WrapLocations(methodSymbol.Locations),
Name = this.nameTable.GetNameFor(methodSymbol.Name),
Parameters = parameters,
Type = this.Map(methodSymbol.ReturnType),
Visibility = this.Map(methodSymbol.DeclaredAccessibility),
};
// IMPORTANT: Have to add it to the cache before doing anything else because it may
// get looked up if it is generic and a parameter's type involves the generic
// method parameter.
this.methodSymbolCache.Add(methodSymbol, m);
#region Define the generic parameters
if (methodSymbol.IsGenericMethod)
{
var genericParameters = new List <IGenericMethodParameter>();
foreach (var gp in methodSymbol.TypeParameters)
{
var gp2 = this.CreateTypeDefinition(gp);
genericParameters.Add((IGenericMethodParameter)gp2);
}
m.GenericParameters = genericParameters;
}
#endregion
#region Define the parameters
ushort i = 0;
foreach (var p in methodSymbol.Parameters)
{
var p_prime = new ParameterDefinition()
{
ContainingSignature = m,
IsByReference = p.RefKind == RefKind.Ref,
IsIn = p.RefKind == RefKind.None,
IsOut = p.RefKind == RefKind.Out,
Name = nameTable.GetNameFor(p.Name),
Type = this.Map(p.Type),
Index = i++,
};
parameters.Add(p_prime);
}
#endregion Define the parameters
#region Define default ctor, if needed
if (/*methodSymbol.IsSynthesized &&*/ isConstructor) // BUGBUG!!
{
m.IsHiddenBySignature = true;
m.IsRuntimeSpecial = true;
m.IsSpecialName = true;
var statements = new List <IStatement>();
var body = new SourceMethodBody(this.host, null, null)
{
LocalsAreZeroed = true,
Block = new BlockStatement()
{
Statements = statements
},
};
var thisRef = new ThisReference()
{
Type = containingType,
};
// base();
foreach (var baseClass in containingType.BaseClasses)
{
var baseCtor = new Microsoft.Cci.MutableCodeModel.MethodReference()
{
CallingConvention = CallingConvention.HasThis,
ContainingType = baseClass,
GenericParameterCount = 0,
InternFactory = this.host.InternFactory,
Name = nameTable.Ctor,
Type = this.host.PlatformType.SystemVoid,
};
statements.Add(
new ExpressionStatement()
{
Expression = new MethodCall()
{
MethodToCall = baseCtor,
IsStaticCall = false, // REVIEW: Is this needed in addition to setting the ThisArgument?
ThisArgument = thisRef,
Type = this.host.PlatformType.SystemVoid, // REVIEW: Is this the right way to do this?
Arguments = new List <IExpression>(),
}
}
);
break;
}
// return;
statements.Add(new ReturnStatement());
body.MethodDefinition = m;
m.Body = body;
}
#endregion
return(m);
}
