private static ASTType?InferVarPush(ILASTExpression expr)
{
var method = (IMethod)expr.Operand;
if (method.MethodSig.RetType.ElementType == ElementType.Void)
{
return(null);
}
var genArgs = new GenericArguments();
if (method is MethodSpec)
{
genArgs.PushMethodArgs(((MethodSpec)method).GenericInstMethodSig.GenericArguments);
}
if (method.DeclaringType.TryGetGenericInstSig() != null)
{
genArgs.PushTypeArgs(method.DeclaringType.TryGetGenericInstSig().GenericArguments);
}
return(TypeInference.ToASTType(genArgs.ResolveType(method.MethodSig.RetType)));
}
/// <summary>
/// Pushes the method generic arguments into resolver stack.
/// </summary>
/// <param name="genericArgs">The generic arguments.</param>
public void PushMethodGenericArguments(IList <TypeSig> genericArgs)
{
genericArguments.PushMethodArgs(genericArgs);
}
public bool Instantiate(MethodSpec methodSpec, out MethodDef def)
{
if (instantiations.TryGetValue(methodSpec, out def))
{
return(true);
}
var genericArguments = new GenericArguments();
genericArguments.PushMethodArgs(methodSpec.GenericInstMethodSig.GenericArguments);
var originDef = methodSpec.Method.ResolveMethodDefThrow();
var newSig = ResolveMethod(originDef.MethodSig, genericArguments);
newSig.Generic = false;
newSig.GenParamCount = 0;
string newName = originDef.Name;
foreach (var typeArg in methodSpec.GenericInstMethodSig.GenericArguments)
{
newName += ";" + typeArg.TypeName;
}
def = new MethodDefUser(newName, newSig, originDef.ImplAttributes, originDef.Attributes);
var thisParam = originDef.HasThis ? originDef.Parameters[0].Type : null;
def.DeclaringType2 = originDef.DeclaringType2;
if (thisParam != null)
{
def.Parameters[0].Type = thisParam;
}
foreach (var declSec in originDef.DeclSecurities)
{
def.DeclSecurities.Add(declSec);
}
def.ImplMap = originDef.ImplMap;
foreach (var ov in originDef.Overrides)
{
def.Overrides.Add(ov);
}
def.Body = new CilBody();
def.Body.InitLocals = originDef.Body.InitLocals;
def.Body.MaxStack = originDef.Body.MaxStack;
foreach (var variable in originDef.Body.Variables)
{
var newVar = new Local(variable.Type);
def.Body.Variables.Add(newVar);
}
var instrMap = new Dictionary <Instruction, Instruction>();
foreach (var instr in originDef.Body.Instructions)
{
var newInstr = new Instruction(instr.OpCode, ResolveOperand(instr.Operand, genericArguments));
def.Body.Instructions.Add(newInstr);
instrMap[instr] = newInstr;
}
foreach (var instr in def.Body.Instructions)
{
if (instr.Operand is Instruction)
{
instr.Operand = instrMap[(Instruction)instr.Operand];
}
else if (instr.Operand is Instruction[])
{
var targets = (Instruction[])((Instruction[])instr.Operand).Clone();
for (int i = 0; i < targets.Length; i++)
{
targets[i] = instrMap[targets[i]];
}
instr.Operand = targets;
}
}
def.Body.UpdateInstructionOffsets();
foreach (var eh in originDef.Body.ExceptionHandlers)
{
var newEH = new ExceptionHandler(eh.HandlerType);
newEH.TryStart = instrMap[eh.TryStart];
newEH.HandlerStart = instrMap[eh.HandlerStart];
if (eh.TryEnd != null)
{
newEH.TryEnd = instrMap[eh.TryEnd];
}
if (eh.HandlerEnd != null)
{
newEH.HandlerEnd = instrMap[eh.HandlerEnd];
}
if (eh.CatchType != null)
{
newEH.CatchType = genericArguments.Resolve(newEH.CatchType.ToTypeSig()).ToTypeDefOrRef();
}
else if (eh.FilterStart != null)
{
newEH.FilterStart = instrMap[eh.FilterStart];
}
def.Body.ExceptionHandlers.Add(newEH);
}
instantiations[methodSpec] = def;
return(false);
}
