internal static LocalSymbol Create(
TypeNameDecoder<PEModuleSymbol, TypeSymbol> typeNameDecoder,
MethodSymbol containingMethod,
AssemblySymbol sourceAssembly,
Alias alias)
{
var typeName = alias.Type;
Debug.Assert(typeName.Length > 0);
var type = typeNameDecoder.GetTypeSymbolForSerializedType(typeName);
Debug.Assert((object)type != null);
var dynamicFlagsInfo = alias.CustomTypeInfo.ToDynamicFlagsCustomTypeInfo();
if (dynamicFlagsInfo.Any())
{
var flagsBuilder = ArrayBuilder<bool>.GetInstance();
dynamicFlagsInfo.CopyTo(flagsBuilder);
var dynamicType = DynamicTypeDecoder.TransformTypeWithoutCustomModifierFlags(
type,
sourceAssembly,
RefKind.None,
flagsBuilder.ToImmutableAndFree(),
checkLength: false);
Debug.Assert(dynamicType != null);
Debug.Assert(dynamicType != type);
type = dynamicType;
}
var name = alias.FullName;
var displayName = alias.Name;
switch (alias.Kind)
{
case DkmClrAliasKind.Exception:
return new ExceptionLocalSymbol(containingMethod, name, displayName, type, ExpressionCompilerConstants.GetExceptionMethodName);
case DkmClrAliasKind.StowedException:
return new ExceptionLocalSymbol(containingMethod, name, displayName, type, ExpressionCompilerConstants.GetStowedExceptionMethodName);
case DkmClrAliasKind.ReturnValue:
{
int index;
PseudoVariableUtilities.TryParseReturnValueIndex(name, out index);
Debug.Assert(index >= 0);
return new ReturnValueLocalSymbol(containingMethod, name, displayName, type, index);
}
case DkmClrAliasKind.ObjectId:
return new ObjectIdLocalSymbol(containingMethod, type, name, displayName, isWritable: false);
case DkmClrAliasKind.Variable:
return new ObjectIdLocalSymbol(containingMethod, type, name, displayName, isWritable: true);
default:
throw ExceptionUtilities.UnexpectedValue(alias.Kind);
}
}
internal static LocalSymbol Create(
TypeNameDecoder<PEModuleSymbol, TypeSymbol> typeNameDecoder,
MethodSymbol containingMethod,
AssemblySymbol sourceAssembly,
Alias alias)
{
var typeName = alias.Type;
Debug.Assert(typeName.Length > 0);
var type = typeNameDecoder.GetTypeSymbolForSerializedType(typeName);
Debug.Assert((object)type != null);
ReadOnlyCollection<byte> dynamicFlags;
ReadOnlyCollection<string> tupleElementNames;
CustomTypeInfo.Decode(alias.CustomTypeInfoId, alias.CustomTypeInfo, out dynamicFlags, out tupleElementNames);
if (dynamicFlags != null)
{
type = DecodeDynamicTypes(type, sourceAssembly, dynamicFlags);
}
if (tupleElementNames != null)
{
type = TupleTypeDecoder.DecodeTupleTypesIfApplicable(type, sourceAssembly, tupleElementNames.AsImmutable());
}
var name = alias.FullName;
var displayName = alias.Name;
switch (alias.Kind)
{
case DkmClrAliasKind.Exception:
return new ExceptionLocalSymbol(containingMethod, name, displayName, type, ExpressionCompilerConstants.GetExceptionMethodName);
case DkmClrAliasKind.StowedException:
return new ExceptionLocalSymbol(containingMethod, name, displayName, type, ExpressionCompilerConstants.GetStowedExceptionMethodName);
case DkmClrAliasKind.ReturnValue:
{
int index;
PseudoVariableUtilities.TryParseReturnValueIndex(name, out index);
Debug.Assert(index >= 0);
return new ReturnValueLocalSymbol(containingMethod, name, displayName, type, index);
}
case DkmClrAliasKind.ObjectId:
return new ObjectIdLocalSymbol(containingMethod, type, name, displayName, isWritable: false);
case DkmClrAliasKind.Variable:
return new ObjectIdLocalSymbol(containingMethod, type, name, displayName, isWritable: true);
default:
throw ExceptionUtilities.UnexpectedValue(alias.Kind);
}
}
public void Alias()
{
var source =
@"class C
{
static (int, int) F;
static void M()
{
}
}";
var comp = CreateCompilationWithMscorlib(source, new[] { ValueTupleRef }, options: TestOptions.DebugDll);
WithRuntimeInstance(comp, runtime =>
{
var context = CreateMethodContext(
runtime,
"C.M");
// (int A, (int, int D) B)[] t;
var aliasElementNames = new ReadOnlyCollection<string>(new[] { "A", "B", null, "D" });
var alias = new Alias(
DkmClrAliasKind.Variable,
"t",
"t",
"System.ValueTuple`2[[System.Int32, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089],[System.ValueTuple`2[[System.Int32, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089],[System.Int32, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089]], System.ValueTuple, Version=4.0.1.0, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51]][], System.ValueTuple, Version=4.0.1.0, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51",
CustomTypeInfo.PayloadTypeId,
CustomTypeInfo.Encode(null, aliasElementNames));
var locals = ArrayBuilder<LocalAndMethod>.GetInstance();
string typeName;
var diagnostics = DiagnosticBag.GetInstance();
var testData = new CompilationTestData();
context.CompileGetLocals(
locals,
argumentsOnly: false,
aliases: ImmutableArray.Create(alias),
diagnostics: diagnostics,
typeName: out typeName,
testData: testData);
diagnostics.Verify();
diagnostics.Free();
Assert.Equal(locals.Count, 1);
ReadOnlyCollection<byte> customTypeInfo;
var customTypeInfoId = locals[0].GetCustomTypeInfo(out customTypeInfo);
ReadOnlyCollection<byte> dynamicFlags;
ReadOnlyCollection<string> tupleElementNames;
CustomTypeInfo.Decode(customTypeInfoId, customTypeInfo, out dynamicFlags, out tupleElementNames);
Assert.Equal(aliasElementNames, tupleElementNames);
var method = testData.Methods.Single().Value.Method;
Assert.NotNull(GetTupleElementNamesAttributeIfAny(method));
var returnType = (TypeSymbol)method.ReturnType;
Assert.False(returnType.IsTupleType);
Assert.True(((ArrayTypeSymbol)returnType).ElementType.IsTupleType);
VerifyLocal(testData, typeName, locals[0], "<>m0", "t", expectedILOpt:
@"{
// Code size 16 (0x10)
.maxstack 1
IL_0000: ldstr ""t""
IL_0005: call ""object Microsoft.VisualStudio.Debugger.Clr.IntrinsicMethods.GetObjectByAlias(string)""
IL_000a: castclass ""(int A, (int, int D) B)[]""
IL_000f: ret
}");
locals.Free();
});
}