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Change AstMethodBodyBuilder switch to use the ILCode enum.

pull/70/head
Daniel Grunwald 15 years ago
parent
commit
82302d0e3b
  1. 342
      ICSharpCode.Decompiler/Ast/AstMethodBodyBuilder.cs

342
ICSharpCode.Decompiler/Ast/AstMethodBodyBuilder.cs

@ -299,34 +299,34 @@ namespace Decompiler @@ -299,34 +299,34 @@ namespace Decompiler
Ast.Expression arg2 = args.Count >= 2 ? args[1] : null;
Ast.Expression arg3 = args.Count >= 3 ? args[2] : null;
switch((Code)opCode) {
switch(opCode) {
#region Arithmetic
case Code.Add: return new Ast.BinaryOperatorExpression(arg1, BinaryOperatorType.Add, arg2);
case Code.Add_Ovf: return new Ast.BinaryOperatorExpression(arg1, BinaryOperatorType.Add, arg2);
case Code.Add_Ovf_Un: return new Ast.BinaryOperatorExpression(arg1, BinaryOperatorType.Add, arg2);
case Code.Div: return new Ast.BinaryOperatorExpression(arg1, BinaryOperatorType.Divide, arg2);
case Code.Div_Un: return new Ast.BinaryOperatorExpression(arg1, BinaryOperatorType.Divide, arg2);
case Code.Mul: return new Ast.BinaryOperatorExpression(arg1, BinaryOperatorType.Multiply, arg2);
case Code.Mul_Ovf: return new Ast.BinaryOperatorExpression(arg1, BinaryOperatorType.Multiply, arg2);
case Code.Mul_Ovf_Un: return new Ast.BinaryOperatorExpression(arg1, BinaryOperatorType.Multiply, arg2);
case Code.Rem: return new Ast.BinaryOperatorExpression(arg1, BinaryOperatorType.Modulus, arg2);
case Code.Rem_Un: return new Ast.BinaryOperatorExpression(arg1, BinaryOperatorType.Modulus, arg2);
case Code.Sub: return new Ast.BinaryOperatorExpression(arg1, BinaryOperatorType.Subtract, arg2);
case Code.Sub_Ovf: return new Ast.BinaryOperatorExpression(arg1, BinaryOperatorType.Subtract, arg2);
case Code.Sub_Ovf_Un: return new Ast.BinaryOperatorExpression(arg1, BinaryOperatorType.Subtract, arg2);
case Code.And: return new Ast.BinaryOperatorExpression(arg1, BinaryOperatorType.BitwiseAnd, arg2);
case Code.Or: return new Ast.BinaryOperatorExpression(arg1, BinaryOperatorType.BitwiseOr, arg2);
case Code.Xor: return new Ast.BinaryOperatorExpression(arg1, BinaryOperatorType.ExclusiveOr, arg2);
case Code.Shl: return new Ast.BinaryOperatorExpression(arg1, BinaryOperatorType.ShiftLeft, arg2);
case Code.Shr: return new Ast.BinaryOperatorExpression(arg1, BinaryOperatorType.ShiftRight, arg2);
case Code.Shr_Un: return new Ast.BinaryOperatorExpression(arg1, BinaryOperatorType.ShiftRight, arg2);
case Code.Neg: return new Ast.UnaryOperatorExpression(UnaryOperatorType.Minus, arg1);
case Code.Not: return new Ast.UnaryOperatorExpression(UnaryOperatorType.BitNot, arg1);
case ILCode.Add: return new Ast.BinaryOperatorExpression(arg1, BinaryOperatorType.Add, arg2);
case ILCode.Add_Ovf: return new Ast.BinaryOperatorExpression(arg1, BinaryOperatorType.Add, arg2);
case ILCode.Add_Ovf_Un: return new Ast.BinaryOperatorExpression(arg1, BinaryOperatorType.Add, arg2);
case ILCode.Div: return new Ast.BinaryOperatorExpression(arg1, BinaryOperatorType.Divide, arg2);
case ILCode.Div_Un: return new Ast.BinaryOperatorExpression(arg1, BinaryOperatorType.Divide, arg2);
case ILCode.Mul: return new Ast.BinaryOperatorExpression(arg1, BinaryOperatorType.Multiply, arg2);
case ILCode.Mul_Ovf: return new Ast.BinaryOperatorExpression(arg1, BinaryOperatorType.Multiply, arg2);
case ILCode.Mul_Ovf_Un: return new Ast.BinaryOperatorExpression(arg1, BinaryOperatorType.Multiply, arg2);
case ILCode.Rem: return new Ast.BinaryOperatorExpression(arg1, BinaryOperatorType.Modulus, arg2);
case ILCode.Rem_Un: return new Ast.BinaryOperatorExpression(arg1, BinaryOperatorType.Modulus, arg2);
case ILCode.Sub: return new Ast.BinaryOperatorExpression(arg1, BinaryOperatorType.Subtract, arg2);
case ILCode.Sub_Ovf: return new Ast.BinaryOperatorExpression(arg1, BinaryOperatorType.Subtract, arg2);
case ILCode.Sub_Ovf_Un: return new Ast.BinaryOperatorExpression(arg1, BinaryOperatorType.Subtract, arg2);
case ILCode.And: return new Ast.BinaryOperatorExpression(arg1, BinaryOperatorType.BitwiseAnd, arg2);
case ILCode.Or: return new Ast.BinaryOperatorExpression(arg1, BinaryOperatorType.BitwiseOr, arg2);
case ILCode.Xor: return new Ast.BinaryOperatorExpression(arg1, BinaryOperatorType.ExclusiveOr, arg2);
case ILCode.Shl: return new Ast.BinaryOperatorExpression(arg1, BinaryOperatorType.ShiftLeft, arg2);
case ILCode.Shr: return new Ast.BinaryOperatorExpression(arg1, BinaryOperatorType.ShiftRight, arg2);
case ILCode.Shr_Un: return new Ast.BinaryOperatorExpression(arg1, BinaryOperatorType.ShiftRight, arg2);
case ILCode.Neg: return new Ast.UnaryOperatorExpression(UnaryOperatorType.Minus, arg1);
case ILCode.Not: return new Ast.UnaryOperatorExpression(UnaryOperatorType.BitNot, arg1);
#endregion
#region Arrays
case Code.Newarr:
case (Code)ILCode.InitArray:
case ILCode.Newarr:
case ILCode.InitArray:
{
var ace = new Ast.ArrayCreateExpression();
ace.Type = operandAsTypeRef;
@ -343,39 +343,41 @@ namespace Decompiler @@ -343,39 +343,41 @@ namespace Decompiler
}
return ace;
}
case Code.Ldlen:
case ILCode.Ldlen:
return arg1.Member("Length");
case Code.Ldelem_I:
case Code.Ldelem_I1:
case Code.Ldelem_I2:
case Code.Ldelem_I4:
case Code.Ldelem_I8:
case Code.Ldelem_U1:
case Code.Ldelem_U2:
case Code.Ldelem_U4:
case Code.Ldelem_R4:
case Code.Ldelem_R8:
case Code.Ldelem_Ref:
case Code.Ldelem_Any:
case ILCode.Ldelem_I:
case ILCode.Ldelem_I1:
case ILCode.Ldelem_I2:
case ILCode.Ldelem_I4:
case ILCode.Ldelem_I8:
case ILCode.Ldelem_U1:
case ILCode.Ldelem_U2:
case ILCode.Ldelem_U4:
case ILCode.Ldelem_R4:
case ILCode.Ldelem_R8:
case ILCode.Ldelem_Ref:
case ILCode.Ldelem_Any:
return arg1.Indexer(arg2);
case Code.Ldelema:
case ILCode.Ldelema:
return MakeRef(arg1.Indexer(arg2));
case Code.Stelem_I:
case Code.Stelem_I1:
case Code.Stelem_I2:
case Code.Stelem_I4:
case Code.Stelem_I8:
case Code.Stelem_R4:
case Code.Stelem_R8:
case Code.Stelem_Ref:
case Code.Stelem_Any:
case ILCode.Stelem_I:
case ILCode.Stelem_I1:
case ILCode.Stelem_I2:
case ILCode.Stelem_I4:
case ILCode.Stelem_I8:
case ILCode.Stelem_R4:
case ILCode.Stelem_R8:
case ILCode.Stelem_Ref:
case ILCode.Stelem_Any:
return new Ast.AssignmentExpression(arg1.Indexer(arg2), arg3);
#endregion
#region Comparison
case Code.Ceq: return new Ast.BinaryOperatorExpression(arg1, BinaryOperatorType.Equality, arg2);
case Code.Cgt: return new Ast.BinaryOperatorExpression(arg1, BinaryOperatorType.GreaterThan, arg2);
case Code.Cgt_Un:
case ILCode.Ceq:
return new Ast.BinaryOperatorExpression(arg1, BinaryOperatorType.Equality, arg2);
case ILCode.Cgt:
return new Ast.BinaryOperatorExpression(arg1, BinaryOperatorType.GreaterThan, arg2);
case ILCode.Cgt_Un:
// can also mean Inequality, when used with object references
{
TypeReference arg1Type = byteCode.Arguments[0].InferredType;
@ -384,96 +386,98 @@ namespace Decompiler @@ -384,96 +386,98 @@ namespace Decompiler
else
return new Ast.BinaryOperatorExpression(arg1, BinaryOperatorType.GreaterThan, arg2);
}
case Code.Clt: return new Ast.BinaryOperatorExpression(arg1, BinaryOperatorType.LessThan, arg2);
case Code.Clt_Un: return new Ast.BinaryOperatorExpression(arg1, BinaryOperatorType.LessThan, arg2);
case ILCode.Clt:
return new Ast.BinaryOperatorExpression(arg1, BinaryOperatorType.LessThan, arg2);
case ILCode.Clt_Un:
return new Ast.BinaryOperatorExpression(arg1, BinaryOperatorType.LessThan, arg2);
#endregion
#region Conversions
case Code.Conv_I1:
case Code.Conv_I2:
case Code.Conv_I4:
case Code.Conv_I8:
case Code.Conv_U1:
case Code.Conv_U2:
case Code.Conv_U4:
case Code.Conv_U8:
case ILCode.Conv_I1:
case ILCode.Conv_I2:
case ILCode.Conv_I4:
case ILCode.Conv_I8:
case ILCode.Conv_U1:
case ILCode.Conv_U2:
case ILCode.Conv_U4:
case ILCode.Conv_U8:
return arg1; // conversion is handled by Convert() function using the info from type analysis
case Code.Conv_I: return arg1.CastTo(typeof(IntPtr)); // TODO
case Code.Conv_U: return arg1.CastTo(typeof(UIntPtr)); // TODO
case Code.Conv_R4: return arg1.CastTo(typeof(float));
case Code.Conv_R8: return arg1.CastTo(typeof(double));
case Code.Conv_R_Un: return arg1.CastTo(typeof(double)); // TODO
case Code.Conv_Ovf_I1:
case Code.Conv_Ovf_I2:
case Code.Conv_Ovf_I4:
case Code.Conv_Ovf_I8:
case Code.Conv_Ovf_U1:
case Code.Conv_Ovf_U2:
case Code.Conv_Ovf_U4:
case Code.Conv_Ovf_U8:
case Code.Conv_Ovf_I1_Un:
case Code.Conv_Ovf_I2_Un:
case Code.Conv_Ovf_I4_Un:
case Code.Conv_Ovf_I8_Un:
case Code.Conv_Ovf_U1_Un:
case Code.Conv_Ovf_U2_Un:
case Code.Conv_Ovf_U4_Un:
case Code.Conv_Ovf_U8_Un:
case ILCode.Conv_I: return arg1.CastTo(typeof(IntPtr)); // TODO
case ILCode.Conv_U: return arg1.CastTo(typeof(UIntPtr)); // TODO
case ILCode.Conv_R4: return arg1.CastTo(typeof(float));
case ILCode.Conv_R8: return arg1.CastTo(typeof(double));
case ILCode.Conv_R_Un: return arg1.CastTo(typeof(double)); // TODO
case ILCode.Conv_Ovf_I1:
case ILCode.Conv_Ovf_I2:
case ILCode.Conv_Ovf_I4:
case ILCode.Conv_Ovf_I8:
case ILCode.Conv_Ovf_U1:
case ILCode.Conv_Ovf_U2:
case ILCode.Conv_Ovf_U4:
case ILCode.Conv_Ovf_U8:
case ILCode.Conv_Ovf_I1_Un:
case ILCode.Conv_Ovf_I2_Un:
case ILCode.Conv_Ovf_I4_Un:
case ILCode.Conv_Ovf_I8_Un:
case ILCode.Conv_Ovf_U1_Un:
case ILCode.Conv_Ovf_U2_Un:
case ILCode.Conv_Ovf_U4_Un:
case ILCode.Conv_Ovf_U8_Un:
return arg1; // conversion was handled by Convert() function using the info from type analysis
case Code.Conv_Ovf_I: return arg1.CastTo(typeof(IntPtr)); // TODO
case Code.Conv_Ovf_U: return arg1.CastTo(typeof(UIntPtr));
case Code.Conv_Ovf_I_Un: return arg1.CastTo(typeof(IntPtr));
case Code.Conv_Ovf_U_Un: return arg1.CastTo(typeof(UIntPtr));
case ILCode.Conv_Ovf_I: return arg1.CastTo(typeof(IntPtr)); // TODO
case ILCode.Conv_Ovf_U: return arg1.CastTo(typeof(UIntPtr));
case ILCode.Conv_Ovf_I_Un: return arg1.CastTo(typeof(IntPtr));
case ILCode.Conv_Ovf_U_Un: return arg1.CastTo(typeof(UIntPtr));
case Code.Castclass:
case Code.Unbox_Any:
case ILCode.Castclass:
case ILCode.Unbox_Any:
return arg1.CastTo(operandAsTypeRef);
case Code.Isinst:
case ILCode.Isinst:
return arg1.CastAs(operandAsTypeRef);
case Code.Box:
case ILCode.Box:
return arg1;
case Code.Unbox:
case ILCode.Unbox:
return InlineAssembly(byteCode, args);
#endregion
#region Indirect
case Code.Ldind_I:
case Code.Ldind_I1:
case Code.Ldind_I2:
case Code.Ldind_I4:
case Code.Ldind_I8:
case Code.Ldind_U1:
case Code.Ldind_U2:
case Code.Ldind_U4:
case Code.Ldind_R4:
case Code.Ldind_R8:
case Code.Ldind_Ref:
case Code.Ldobj:
case ILCode.Ldind_I:
case ILCode.Ldind_I1:
case ILCode.Ldind_I2:
case ILCode.Ldind_I4:
case ILCode.Ldind_I8:
case ILCode.Ldind_U1:
case ILCode.Ldind_U2:
case ILCode.Ldind_U4:
case ILCode.Ldind_R4:
case ILCode.Ldind_R8:
case ILCode.Ldind_Ref:
case ILCode.Ldobj:
if (args[0] is DirectionExpression)
return ((DirectionExpression)args[0]).Expression.Detach();
else
return InlineAssembly(byteCode, args);
case Code.Stind_I:
case Code.Stind_I1:
case Code.Stind_I2:
case Code.Stind_I4:
case Code.Stind_I8:
case Code.Stind_R4:
case Code.Stind_R8:
case Code.Stind_Ref:
case Code.Stobj:
case ILCode.Stind_I:
case ILCode.Stind_I1:
case ILCode.Stind_I2:
case ILCode.Stind_I4:
case ILCode.Stind_I8:
case ILCode.Stind_R4:
case ILCode.Stind_R8:
case ILCode.Stind_Ref:
case ILCode.Stobj:
if (args[0] is DirectionExpression)
return new AssignmentExpression(((DirectionExpression)args[0]).Expression.Detach(), args[1]);
else
return InlineAssembly(byteCode, args);
#endregion
case Code.Arglist: return InlineAssembly(byteCode, args);
case Code.Break: return InlineAssembly(byteCode, args);
case Code.Call:
case ILCode.Arglist: return InlineAssembly(byteCode, args);
case ILCode.Break: return InlineAssembly(byteCode, args);
case ILCode.Call:
return TransformCall(false, operand, methodDef, args);
case Code.Callvirt:
case ILCode.Callvirt:
return TransformCall(true, operand, methodDef, args);
case Code.Ldftn:
case ILCode.Ldftn:
{
Cecil.MethodReference cecilMethod = ((MethodReference)operand);
var expr = new Ast.IdentifierExpression(cecilMethod.Name);
@ -482,7 +486,7 @@ namespace Decompiler @@ -482,7 +486,7 @@ namespace Decompiler
return new IdentifierExpression("ldftn").Invoke(expr)
.WithAnnotation(new Transforms.DelegateConstruction.Annotation(false));
}
case Code.Ldvirtftn:
case ILCode.Ldvirtftn:
{
Cecil.MethodReference cecilMethod = ((MethodReference)operand);
var expr = new Ast.IdentifierExpression(cecilMethod.Name);
@ -492,22 +496,23 @@ namespace Decompiler @@ -492,22 +496,23 @@ namespace Decompiler
.WithAnnotation(new Transforms.DelegateConstruction.Annotation(true));
}
case Code.Calli: return InlineAssembly(byteCode, args);
case Code.Ckfinite: return InlineAssembly(byteCode, args);
case Code.Constrained: return InlineAssembly(byteCode, args);
case Code.Cpblk: return InlineAssembly(byteCode, args);
case Code.Cpobj: return InlineAssembly(byteCode, args);
case Code.Dup: return arg1;
case Code.Endfilter: return InlineAssembly(byteCode, args);
case Code.Endfinally: return null;
case Code.Initblk: return InlineAssembly(byteCode, args);
case Code.Initobj:
case ILCode.Calli: return InlineAssembly(byteCode, args);
case ILCode.Ckfinite: return InlineAssembly(byteCode, args);
case ILCode.Constrained: return InlineAssembly(byteCode, args);
case ILCode.Cpblk: return InlineAssembly(byteCode, args);
case ILCode.Cpobj: return InlineAssembly(byteCode, args);
case ILCode.Dup: return arg1;
case ILCode.Endfilter: return InlineAssembly(byteCode, args);
case ILCode.Endfinally: return null;
case ILCode.Initblk: return InlineAssembly(byteCode, args);
case ILCode.Initobj:
if (args[0] is DirectionExpression)
return new AssignmentExpression(((DirectionExpression)args[0]).Expression.Detach(), new DefaultValueExpression { Type = operandAsTypeRef });
else
return InlineAssembly(byteCode, args);
case Code.Jmp: return InlineAssembly(byteCode, args);
case Code.Ldarg:
case ILCode.Jmp:
return InlineAssembly(byteCode, args);
case ILCode.Ldarg:
if (methodDef.HasThis && ((ParameterDefinition)operand).Index < 0) {
if (context.CurrentMethod.DeclaringType.IsValueType)
return MakeRef(new Ast.ThisReferenceExpression());
@ -520,60 +525,61 @@ namespace Decompiler @@ -520,60 +525,61 @@ namespace Decompiler
else
return expr;
}
case Code.Ldarga:
case ILCode.Ldarga:
if (methodDef.HasThis && ((ParameterDefinition)operand).Index < 0) {
return MakeRef(new Ast.ThisReferenceExpression());
} else {
return MakeRef(new Ast.IdentifierExpression(((ParameterDefinition)operand).Name).WithAnnotation(operand));
}
case Code.Ldc_I4:
case ILCode.Ldc_I4:
return AstBuilder.MakePrimitive((int)operand, byteCode.InferredType);
case Code.Ldc_I8:
case Code.Ldc_R4:
case Code.Ldc_R8:
case (Code)ILCode.Ldc_Decimal:
case ILCode.Ldc_I8:
case ILCode.Ldc_R4:
case ILCode.Ldc_R8:
case ILCode.Ldc_Decimal:
return new Ast.PrimitiveExpression(operand);
case Code.Ldfld:
case ILCode.Ldfld:
if (arg1 is DirectionExpression)
arg1 = ((DirectionExpression)arg1).Expression.Detach();
return arg1.Member(((FieldReference) operand).Name).WithAnnotation(operand);
case Code.Ldsfld:
case ILCode.Ldsfld:
return AstBuilder.ConvertType(((FieldReference)operand).DeclaringType)
.Member(((FieldReference)operand).Name).WithAnnotation(operand);
case Code.Stfld:
case ILCode.Stfld:
if (arg1 is DirectionExpression)
arg1 = ((DirectionExpression)arg1).Expression.Detach();
return new AssignmentExpression(arg1.Member(((FieldReference) operand).Name).WithAnnotation(operand), arg2);
case Code.Stsfld:
case ILCode.Stsfld:
return new AssignmentExpression(
AstBuilder.ConvertType(((FieldReference)operand).DeclaringType)
.Member(((FieldReference)operand).Name).WithAnnotation(operand),
arg1);
case Code.Ldflda:
case ILCode.Ldflda:
return MakeRef(arg1.Member(((FieldReference) operand).Name).WithAnnotation(operand));
case Code.Ldsflda:
case ILCode.Ldsflda:
return MakeRef(
AstBuilder.ConvertType(((FieldReference)operand).DeclaringType)
.Member(((FieldReference)operand).Name).WithAnnotation(operand));
case Code.Ldloc:
case ILCode.Ldloc:
localVariablesToDefine.Add((ILVariable)operand);
return new Ast.IdentifierExpression(((ILVariable)operand).Name).WithAnnotation(operand);
case Code.Ldloca:
case ILCode.Ldloca:
localVariablesToDefine.Add((ILVariable)operand);
return MakeRef(new Ast.IdentifierExpression(((ILVariable)operand).Name).WithAnnotation(operand));
case Code.Ldnull:
case ILCode.Ldnull:
return new Ast.NullReferenceExpression();
case Code.Ldstr: return new Ast.PrimitiveExpression(operand);
case Code.Ldtoken:
case ILCode.Ldstr:
return new Ast.PrimitiveExpression(operand);
case ILCode.Ldtoken:
if (operand is Cecil.TypeReference) {
return new Ast.TypeOfExpression { Type = operandAsTypeRef }.Member("TypeHandle");
} else {
return InlineAssembly(byteCode, args);
}
case Code.Leave: return new GotoStatement() { Label = ((ILLabel)operand).Name };
case Code.Localloc: return InlineAssembly(byteCode, args);
case Code.Mkrefany: return InlineAssembly(byteCode, args);
case Code.Newobj:
case ILCode.Leave: return new GotoStatement() { Label = ((ILLabel)operand).Name };
case ILCode.Localloc: return InlineAssembly(byteCode, args);
case ILCode.Mkrefany: return InlineAssembly(byteCode, args);
case ILCode.Newobj:
{
Cecil.TypeReference declaringType = ((MethodReference)operand).DeclaringType;
@ -593,34 +599,34 @@ namespace Decompiler @@ -593,34 +599,34 @@ namespace Decompiler
oce.Arguments.AddRange(args);
return oce.WithAnnotation(operand);
}
case Code.No: return InlineAssembly(byteCode, args);
case Code.Nop: return null;
case Code.Pop: return arg1;
case Code.Readonly: return InlineAssembly(byteCode, args);
case Code.Refanytype: return InlineAssembly(byteCode, args);
case Code.Refanyval: return InlineAssembly(byteCode, args);
case Code.Ret: {
case ILCode.No: return InlineAssembly(byteCode, args);
case ILCode.Nop: return null;
case ILCode.Pop: return arg1;
case ILCode.Readonly: return InlineAssembly(byteCode, args);
case ILCode.Refanytype: return InlineAssembly(byteCode, args);
case ILCode.Refanyval: return InlineAssembly(byteCode, args);
case ILCode.Ret: {
if (methodDef.ReturnType.FullName != "System.Void") {
return new Ast.ReturnStatement { Expression = arg1 };
} else {
return new Ast.ReturnStatement();
}
}
case Code.Rethrow: return new Ast.ThrowStatement();
case Code.Sizeof:
case ILCode.Rethrow: return new Ast.ThrowStatement();
case ILCode.Sizeof:
return new Ast.SizeOfExpression { Type = operandAsTypeRef };
case Code.Starg:
case ILCode.Starg:
return new Ast.AssignmentExpression(new Ast.IdentifierExpression(((ParameterDefinition)operand).Name).WithAnnotation(operand), arg1);
case Code.Stloc: {
case ILCode.Stloc: {
ILVariable locVar = (ILVariable)operand;
localVariablesToDefine.Add(locVar);
return new Ast.AssignmentExpression(new Ast.IdentifierExpression(locVar.Name).WithAnnotation(locVar), arg1);
}
case Code.Switch: return InlineAssembly(byteCode, args);
case Code.Tail: return InlineAssembly(byteCode, args);
case Code.Throw: return new Ast.ThrowStatement { Expression = arg1 };
case Code.Unaligned: return InlineAssembly(byteCode, args);
case Code.Volatile: return InlineAssembly(byteCode, args);
case ILCode.Switch: return InlineAssembly(byteCode, args);
case ILCode.Tail: return InlineAssembly(byteCode, args);
case ILCode.Throw: return new Ast.ThrowStatement { Expression = arg1 };
case ILCode.Unaligned: return InlineAssembly(byteCode, args);
case ILCode.Volatile: return InlineAssembly(byteCode, args);
default: throw new Exception("Unknown OpCode: " + opCode);
}
}

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