internal RuntimeInstance CreateRuntimeInstance(
string assemblyName,
ImmutableArray<MetadataReference> references,
byte[] exeBytes,
ISymUnmanagedReader symReader,
bool includeLocalSignatures = true)
{
var exeReference = AssemblyMetadata.CreateFromImage(exeBytes).GetReference(display: assemblyName);
var modulesBuilder = ArrayBuilder<ModuleInstance>.GetInstance();
// Create modules for the references
modulesBuilder.AddRange(references.Select(r => r.ToModuleInstance(fullImage: null, symReader: null, includeLocalSignatures: includeLocalSignatures)));
// Create a module for the exe.
modulesBuilder.Add(exeReference.ToModuleInstance(exeBytes, symReader, includeLocalSignatures: includeLocalSignatures));
var modules = modulesBuilder.ToImmutableAndFree();
modules.VerifyAllModules();
var instance = new RuntimeInstance(modules);
_runtimeInstances.Add(instance);
return instance;
}
internal static void GetContextState(
RuntimeInstance runtime,
string methodOrTypeName,
out ImmutableArray<MetadataBlock> blocks,
out Guid moduleVersionId,
out ISymUnmanagedReader symReader,
out int methodOrTypeToken,
out int localSignatureToken)
{
var moduleInstances = runtime.Modules;
blocks = moduleInstances.SelectAsArray(m => m.MetadataBlock);
var compilation = blocks.ToCompilation();
var methodOrType = GetMethodOrTypeBySignature(compilation, methodOrTypeName);
var module = (PEModuleSymbol)methodOrType.ContainingModule;
var id = module.Module.GetModuleVersionIdOrThrow();
var moduleInstance = moduleInstances.First(m => m.ModuleVersionId == id);
moduleVersionId = id;
symReader = (ISymUnmanagedReader)moduleInstance.SymReader;
EntityHandle methodOrTypeHandle;
if (methodOrType.Kind == SymbolKind.Method)
{
methodOrTypeHandle = ((PEMethodSymbol)methodOrType).Handle;
localSignatureToken = moduleInstance.GetLocalSignatureToken((MethodDefinitionHandle)methodOrTypeHandle);
}
else
{
methodOrTypeHandle = ((PENamedTypeSymbol)methodOrType).Handle;
localSignatureToken = -1;
}
MetadataReader reader = null; // null should be ok
methodOrTypeToken = reader.GetToken(methodOrTypeHandle);
}
private static void GetLocals(RuntimeInstance runtime, string methodName, bool argumentsOnly, ArrayBuilder<LocalAndMethod> locals, int count, out string typeName, out CompilationTestData testData)
{
var context = CreateMethodContext(runtime, methodName);
testData = new CompilationTestData();
var assembly = context.CompileGetLocals(locals, argumentsOnly, out typeName, testData);
Assert.NotNull(assembly);
if (count == 0)
{
Assert.Equal(0, assembly.Count);
}
else
{
Assert.InRange(assembly.Count, 0, int.MaxValue);
}
Assert.Equal(count, locals.Count);
}
public void TypeOutsideModule()
{
var sourceA =
@"using System;
public class A<T>
{
public static void M(Action f)
{
object o;
try
{
f();
}
catch (Exception)
{
}
}
}";
var sourceB =
@"using System;
class E : Exception
{
internal object F;
}
class B
{
static void Main()
{
A<int>.M(() => { throw new E(); });
}
}";
var assemblyNameA = "0A93FF0B-31A2-47C8-B24D-16A2D77AB5C5";
var compilationA = CreateCompilationWithMscorlib(sourceA, options: TestOptions.DebugDll, assemblyName: assemblyNameA);
byte[] exeA;
byte[] pdbA;
ImmutableArray<MetadataReference> referencesA;
compilationA.EmitAndGetReferences(out exeA, out pdbA, out referencesA);
var metadataA = AssemblyMetadata.CreateFromImage(exeA);
var referenceA = metadataA.GetReference();
var assemblyNameB = "9BAC6622-86EB-4EC5-94A1-9A1E6D0C24B9";
var compilationB = CreateCompilationWithMscorlib(sourceB, options: TestOptions.DebugExe, references: new[] { referenceA }, assemblyName: assemblyNameB);
byte[] exeB;
byte[] pdbB;
ImmutableArray<MetadataReference> referencesB;
compilationB.EmitAndGetReferences(out exeB, out pdbB, out referencesB);
var metadataB = AssemblyMetadata.CreateFromImage(exeB);
var referenceB = metadataB.GetReference();
var modulesBuilder = ArrayBuilder<ModuleInstance>.GetInstance();
modulesBuilder.Add(MscorlibRef.ToModuleInstance(fullImage: null, symReader: null));
modulesBuilder.Add(referenceA.ToModuleInstance(fullImage: exeA, symReader: new SymReader(pdbA)));
modulesBuilder.Add(referenceB.ToModuleInstance(fullImage: exeB, symReader: new SymReader(pdbB)));
modulesBuilder.Add(ExpressionCompilerTestHelpers.IntrinsicAssemblyReference.ToModuleInstance(fullImage: null, symReader: null));
using (var runtime = new RuntimeInstance(modulesBuilder.ToImmutableAndFree()))
{
var context = CreateMethodContext(
runtime,
"A.M");
var aliases = ImmutableArray.Create(
ExceptionAlias("E, 9BAC6622-86EB-4EC5-94A1-9A1E6D0C24B9, Version=0.0.0.0, Culture=neutral, PublicKeyToken=null"),
ObjectIdAlias(1, "A`1[[B, 9BAC6622-86EB-4EC5-94A1-9A1E6D0C24B9, Version=0.0.0.0, Culture=neutral, PublicKeyToken=null]], 0A93FF0B-31A2-47C8-B24D-16A2D77AB5C5, Version=0.0.0.0, Culture=neutral, PublicKeyToken=null"));
string error;
var testData = new CompilationTestData();
context.CompileExpression(
"$exception",
DkmEvaluationFlags.TreatAsExpression,
aliases,
out error,
testData);
Assert.Null(error);
testData.GetMethodData("<>x<T>.<>m0").VerifyIL(
@"{
// Code size 11 (0xb)
.maxstack 1
.locals init (object V_0) //o
IL_0000: call ""System.Exception Microsoft.VisualStudio.Debugger.Clr.IntrinsicMethods.GetException()""
IL_0005: castclass ""E""
IL_000a: ret
}");
ResultProperties resultProperties;
ImmutableArray<AssemblyIdentity> missingAssemblyIdentities;
testData = new CompilationTestData();
context.CompileAssignment(
"o",
"$1",
aliases,
DiagnosticFormatter.Instance,
out resultProperties,
out error,
out missingAssemblyIdentities,
EnsureEnglishUICulture.PreferredOrNull,
testData);
Assert.Empty(missingAssemblyIdentities);
Assert.Null(error);
testData.GetMethodData("<>x<T>.<>m0").VerifyIL(
@"{
// Code size 17 (0x11)
.maxstack 1
.locals init (object V_0) //o
IL_0000: ldstr ""$1""
IL_0005: call ""object Microsoft.VisualStudio.Debugger.Clr.IntrinsicMethods.GetObjectByAlias(string)""
IL_000a: castclass ""A<B>""
IL_000f: stloc.0
IL_0010: ret
}");
}
}
private static ImportChain GetImports(RuntimeInstance runtime, string methodName, Syntax.ExpressionSyntax syntax)
{
var evalContext = CreateMethodContext(
runtime,
methodName: methodName);
var compContext = evalContext.CreateCompilationContext(syntax);
return compContext.NamespaceBinder.ImportChain;
}
public void AssemblyQualifiedNameResolutionWithUnification()
{
var source1 = @"
using SI = System.Int32;
public class C1
{
void M()
{
}
}
";
var source2 = @"
public class C2 : C1
{
}
";
ImmutableArray<MetadataReference> unused;
var comp1 = CreateCompilation(source1, new[] { MscorlibRef_v20 }, TestOptions.DebugDll, assemblyName: "A");
byte[] dllBytes1;
byte[] pdbBytes1;
comp1.EmitAndGetReferences(out dllBytes1, out pdbBytes1, out unused);
var ref1 = AssemblyMetadata.CreateFromImage(dllBytes1).GetReference(display: "A");
var comp2 = CreateCompilation(source2, new[] { MscorlibRef_v4_0_30316_17626, ref1 }, TestOptions.DebugDll, assemblyName: "B");
byte[] dllBytes2;
byte[] pdbBytes2;
comp2.EmitAndGetReferences(out dllBytes2, out pdbBytes2, out unused);
var ref2 = AssemblyMetadata.CreateFromImage(dllBytes2).GetReference(display: "B");
var modulesBuilder = ArrayBuilder<ModuleInstance>.GetInstance();
modulesBuilder.Add(ref1.ToModuleInstance(dllBytes1, SymReaderFactory.CreateReader(pdbBytes1)));
modulesBuilder.Add(ref2.ToModuleInstance(dllBytes2, SymReaderFactory.CreateReader(pdbBytes2)));
modulesBuilder.Add(MscorlibRef_v4_0_30316_17626.ToModuleInstance(fullImage: null, symReader: null));
modulesBuilder.Add(ExpressionCompilerTestHelpers.IntrinsicAssemblyReference.ToModuleInstance(fullImage: null, symReader: null));
using (var runtime = new RuntimeInstance(modulesBuilder.ToImmutableAndFree()))
{
var context = CreateMethodContext(runtime, "C1.M");
string error;
var testData = new CompilationTestData();
context.CompileExpression("typeof(SI)", out error, testData);
Assert.Null(error);
testData.GetMethodData("<>x.<>m0").VerifyIL(@"
{
// Code size 11 (0xb)
.maxstack 1
IL_0000: ldtoken ""int""
IL_0005: call ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
IL_000a: ret
}
");
}
}
public void ModuleWithBadImageFormat()
{
var source = @"
class C
{
int F = 1;
static void M()
{
}
}";
var comp = CreateCompilationWithMscorlib(source, options: TestOptions.DebugDll, assemblyName: GetUniqueName());
byte[] exeBytes;
byte[] pdbBytes;
ImmutableArray<MetadataReference> references;
comp.EmitAndGetReferences(out exeBytes, out pdbBytes, out references);
var exeReference = AssemblyMetadata.CreateFromImage(exeBytes).GetReference(display: Guid.NewGuid().ToString("D"));
var modulesBuilder = ArrayBuilder<ModuleInstance>.GetInstance();
var corruptMetadata = new ModuleInstance(
metadataReference: null,
moduleMetadata: null,
moduleVersionId: default(Guid),
fullImage: null,
metadataOnly: CommonResources.NoValidTables,
symReader: null,
includeLocalSignatures: false);
modulesBuilder.Add(corruptMetadata);
modulesBuilder.Add(exeReference.ToModuleInstance(exeBytes, new SymReader(pdbBytes)));
modulesBuilder.AddRange(references.Select(r => r.ToModuleInstance(fullImage: null, symReader: null)));
var modules = modulesBuilder.ToImmutableAndFree();
using (var runtime = new RuntimeInstance(modules))
{
var context = CreateMethodContext(runtime, "C.M");
ResultProperties resultProperties;
string error;
var testData = new CompilationTestData();
// Verify that we can still evaluate expressions for modules that are not corrupt.
context.CompileExpression("(new C()).F", out resultProperties, out error, testData);
Assert.Null(error);
Assert.Equal(DkmClrCompilationResultFlags.None, resultProperties.Flags);
testData.GetMethodData("<>x.<>m0").VerifyIL(@"
{
// Code size 11 (0xb)
.maxstack 1
IL_0000: newobj ""C..ctor()""
IL_0005: ldfld ""int C.F""
IL_000a: ret
}");
}
}
internal static EvaluationContext CreateMethodContext(
RuntimeInstance runtime,
string methodName,
int atLineNumber = -1)
{
ImmutableArray<MetadataBlock> blocks;
Guid moduleVersionId;
ISymUnmanagedReader symReader;
int methodToken;
int localSignatureToken;
GetContextState(runtime, methodName, out blocks, out moduleVersionId, out symReader, out methodToken, out localSignatureToken);
uint ilOffset = ExpressionCompilerTestHelpers.GetOffset(methodToken, symReader, atLineNumber);
return EvaluationContext.CreateMethodContext(
default(CSharpMetadataContext),
blocks,
symReader,
moduleVersionId,
methodToken: methodToken,
methodVersion: 1,
ilOffset: ilOffset,
localSignatureToken: localSignatureToken);
}
internal static EvaluationContext CreateTypeContext(
RuntimeInstance runtime,
string typeName)
{
ImmutableArray<MetadataBlock> blocks;
Guid moduleVersionId;
ISymUnmanagedReader symReader;
int typeToken;
int localSignatureToken;
GetContextState(runtime, typeName, out blocks, out moduleVersionId, out symReader, out typeToken, out localSignatureToken);
return EvaluationContext.CreateTypeContext(
default(CSharpMetadataContext),
blocks,
moduleVersionId,
typeToken);
}
public void MissingMscorlib()
{
var sourceA =
@"public class A
{
}
class B
{
}
class C
{
}";
var sourceB =
@"public class B : A
{
}";
var assemblyNameA = ExpressionCompilerUtilities.GenerateUniqueName();
var compilationA = CreateCompilation(
sourceA,
references: new MetadataReference[] { SystemRuntimePP7Ref },
options: TestOptions.DebugDll,
assemblyName: assemblyNameA);
byte[] exeBytesA;
byte[] pdbBytesA;
ImmutableArray<MetadataReference> referencesA;
compilationA.EmitAndGetReferences(out exeBytesA, out pdbBytesA, out referencesA);
var referenceA = AssemblyMetadata.CreateFromImage(exeBytesA).GetReference(display: assemblyNameA);
var identityA = referenceA.GetAssemblyIdentity();
var moduleA = referenceA.ToModuleInstance(exeBytesA, new SymReader(pdbBytesA));
var assemblyNameB = ExpressionCompilerUtilities.GenerateUniqueName();
var compilationB = CreateCompilation(
sourceB,
references: new MetadataReference[] { SystemRuntimePP7Ref, referenceA },
options: TestOptions.DebugDll,
assemblyName: assemblyNameB);
byte[] exeBytesB;
byte[] pdbBytesB;
ImmutableArray<MetadataReference> referencesB;
compilationB.EmitAndGetReferences(out exeBytesB, out pdbBytesB, out referencesB);
var referenceB = AssemblyMetadata.CreateFromImage(exeBytesB).GetReference(display: assemblyNameB);
var moduleB = referenceB.ToModuleInstance(exeBytesB, new SymReader(pdbBytesB));
// At runtime System.Runtime.dll contract assembly is replaced
// by mscorlib.dll and System.Runtime.dll facade assemblies.
var moduleBuilder = ArrayBuilder<ModuleInstance>.GetInstance();
moduleBuilder.Add(MscorlibFacadeRef.ToModuleInstance(null, null));
moduleBuilder.Add(SystemRuntimeFacadeRef.ToModuleInstance(null, null));
moduleBuilder.Add(moduleA);
moduleBuilder.Add(moduleB);
var modules = moduleBuilder.ToImmutableAndFree();
using (var runtime = new RuntimeInstance(modules))
{
ImmutableArray<MetadataBlock> blocks;
Guid moduleVersionId;
ISymUnmanagedReader symReader;
int typeToken;
int localSignatureToken;
GetContextState(runtime, "C", out blocks, out moduleVersionId, out symReader, out typeToken, out localSignatureToken);
string errorMessage;
CompilationTestData testData;
int attempts = 0;
ExpressionCompiler.CreateContextDelegate contextFactory = (b, u) =>
{
attempts++;
return EvaluationContext.CreateTypeContext(
ToCompilation(b, u, moduleVersionId),
moduleVersionId,
typeToken);
};
// Compile: [DebuggerDisplay("{new B()}")]
const string expr = "new B()";
ExpressionCompilerTestHelpers.CompileExpressionWithRetry(blocks, expr, contextFactory, getMetaDataBytesPtr: null, errorMessage: out errorMessage, testData: out testData);
Assert.Null(errorMessage);
Assert.Equal(2, attempts);
var methodData = testData.GetMethodData("<>x.<>m0");
methodData.VerifyIL(
@"{
// Code size 6 (0x6)
.maxstack 1
IL_0000: newobj ""B..ctor()""
IL_0005: ret
}");
}
}
public void PIATypeAndEmbeddedType()
{
var sourcePIA =
@"using System.Runtime.InteropServices;
[assembly: PrimaryInteropAssembly(0, 0)]
[assembly: Guid(""863D5BC0-46A1-49AC-97AA-A5F0D441A9DC"")]
[ComImport]
[Guid(""863D5BC0-46A1-49AD-97AA-A5F0D441A9DC"")]
public interface I
{
object F();
}";
var sourceA =
@"public class A
{
public static void M(I x)
{
}
}";
var sourceB =
@"class B
{
static void Main()
{
I y = null;
A.M(y);
}
}";
var compilationPIA = CreateCompilationWithMscorlib(sourcePIA, options: TestOptions.DebugDll);
byte[] exePIA;
byte[] pdbPIA;
ImmutableArray<MetadataReference> referencesPIA;
compilationPIA.EmitAndGetReferences(out exePIA, out pdbPIA, out referencesPIA);
var metadataPIA = AssemblyMetadata.CreateFromImage(exePIA);
var referencePIA = metadataPIA.GetReference();
// csc /t:library /l:PIA.dll A.cs
var compilationA = CreateCompilationWithMscorlib(
sourceA,
options: TestOptions.DebugDll,
assemblyName: ExpressionCompilerUtilities.GenerateUniqueName(),
references: new MetadataReference[] { metadataPIA.GetReference(embedInteropTypes: true) });
byte[] exeA;
byte[] pdbA;
ImmutableArray<MetadataReference> referencesA;
compilationA.EmitAndGetReferences(out exeA, out pdbA, out referencesA);
var metadataA = AssemblyMetadata.CreateFromImage(exeA);
var referenceA = metadataA.GetReference();
// csc /r:A.dll /r:PIA.dll B.cs
var compilationB = CreateCompilationWithMscorlib(
sourceB,
options: TestOptions.DebugExe,
assemblyName: Guid.NewGuid().ToString("D"),
references: new MetadataReference[] { metadataA.GetReference(), metadataPIA.GetReference() });
byte[] exeB;
byte[] pdbB;
ImmutableArray<MetadataReference> referencesB;
compilationB.EmitAndGetReferences(out exeB, out pdbB, out referencesB);
var metadataB = AssemblyMetadata.CreateFromImage(exeB);
var referenceB = metadataB.GetReference();
// Create runtime from modules { mscorlib, PIA, A, B }.
var modulesBuilder = ArrayBuilder<ModuleInstance>.GetInstance();
modulesBuilder.Add(MscorlibRef.ToModuleInstance(fullImage: null, symReader: null));
modulesBuilder.Add(referenceA.ToModuleInstance(fullImage: exeA, symReader: new SymReader(pdbA)));
modulesBuilder.Add(referencePIA.ToModuleInstance(fullImage: null, symReader: null));
modulesBuilder.Add(referenceB.ToModuleInstance(fullImage: exeB, symReader: new SymReader(pdbB)));
using (var runtime = new RuntimeInstance(modulesBuilder.ToImmutableAndFree()))
{
var context = CreateMethodContext(runtime, "A.M");
ResultProperties resultProperties;
string error;
// Bind to local of embedded PIA type.
var testData = new CompilationTestData();
context.CompileExpression("x", out error, testData);
Assert.Null(error);
testData.GetMethodData("<>x.<>m0").VerifyIL(
@"{
// Code size 2 (0x2)
.maxstack 1
IL_0000: ldarg.0
IL_0001: ret
}");
// Binding to method on original PIA should fail
// since it was not included in embedded type.
ImmutableArray<AssemblyIdentity> missingAssemblyIdentities;
context.CompileExpression(
"x.F()",
DkmEvaluationFlags.TreatAsExpression,
NoAliases,
DebuggerDiagnosticFormatter.Instance,
out resultProperties,
out error,
out missingAssemblyIdentities,
EnsureEnglishUICulture.PreferredOrNull,
testData: null);
AssertEx.SetEqual(missingAssemblyIdentities, EvaluationContextBase.SystemCoreIdentity);
Assert.Equal(error, "error CS1061: 'I' does not contain a definition for 'F' and no extension method 'F' accepting a first argument of type 'I' could be found (are you missing a using directive or an assembly reference?)");
// Binding to method on original PIA should succeed
// in assembly referencing PIA.dll.
context = CreateMethodContext(runtime, "B.Main");
testData = new CompilationTestData();
context.CompileExpression("y.F()", out error, testData);
Assert.Null(error);
testData.GetMethodData("<>x.<>m0").VerifyIL(
@"{
// Code size 7 (0x7)
.maxstack 1
.locals init (I V_0) //y
IL_0000: ldloc.0
IL_0001: callvirt ""object I.F()""
IL_0006: ret
}");
}
}
public void DuplicateTypesAndMethodsDifferentAssemblies()
{
var sourceA =
@"using N;
namespace N
{
class C1 { }
public static class E
{
public static A F(this A o) { return o; }
}
}
class C2 { }
public class A
{
public static void M()
{
var x = new A();
var y = x.F();
}
}";
var sourceB =
@"using N;
namespace N
{
class C1 { }
public static class E
{
public static int F(this A o) { return 2; }
}
}
class C2 { }
public class B
{
static void M()
{
var x = new A();
}
}";
var assemblyNameA = ExpressionCompilerUtilities.GenerateUniqueName();
var compilationA = CreateCompilationWithMscorlibAndSystemCore(sourceA, options: TestOptions.DebugDll, assemblyName: assemblyNameA);
byte[] exeBytesA;
byte[] pdbBytesA;
ImmutableArray<MetadataReference> referencesA;
compilationA.EmitAndGetReferences(out exeBytesA, out pdbBytesA, out referencesA);
var referenceA = AssemblyMetadata.CreateFromImage(exeBytesA).GetReference(display: assemblyNameA);
var identityA = referenceA.GetAssemblyIdentity();
var moduleA = referenceA.ToModuleInstance(exeBytesA, new SymReader(pdbBytesA));
var assemblyNameB = ExpressionCompilerUtilities.GenerateUniqueName();
var compilationB = CreateCompilationWithMscorlibAndSystemCore(sourceB, options: TestOptions.DebugDll, assemblyName: assemblyNameB, references: new[] { referenceA });
byte[] exeBytesB;
byte[] pdbBytesB;
ImmutableArray<MetadataReference> referencesB;
compilationB.EmitAndGetReferences(out exeBytesB, out pdbBytesB, out referencesB);
var referenceB = AssemblyMetadata.CreateFromImage(exeBytesB).GetReference(display: assemblyNameB);
var moduleB = referenceB.ToModuleInstance(exeBytesB, new SymReader(pdbBytesB));
var moduleBuilder = ArrayBuilder<ModuleInstance>.GetInstance();
moduleBuilder.AddRange(referencesA.Select(r => r.ToModuleInstance(null, null)));
moduleBuilder.Add(moduleA);
moduleBuilder.Add(moduleB);
var modules = moduleBuilder.ToImmutableAndFree();
using (var runtime = new RuntimeInstance(modules))
{
ImmutableArray<MetadataBlock> blocks;
Guid moduleVersionId;
ISymUnmanagedReader symReader;
int typeToken;
int methodToken;
int localSignatureToken;
GetContextState(runtime, "B", out blocks, out moduleVersionId, out symReader, out typeToken, out localSignatureToken);
string errorMessage;
CompilationTestData testData;
var contextFactory = CreateTypeContextFactory(moduleVersionId, typeToken);
// Duplicate type in namespace, at type scope.
ExpressionCompilerTestHelpers.CompileExpressionWithRetry(blocks, "new N.C1()", contextFactory, getMetaDataBytesPtr: null, errorMessage: out errorMessage, testData: out testData);
Assert.True(errorMessage.StartsWith("error CS0433: The type 'C1' exists in both "));
GetContextState(runtime, "B.M", out blocks, out moduleVersionId, out symReader, out methodToken, out localSignatureToken);
contextFactory = CreateMethodContextFactory(moduleVersionId, symReader, methodToken, localSignatureToken);
// Duplicate type in namespace, at method scope.
ExpressionCompilerTestHelpers.CompileExpressionWithRetry(blocks, "new C1()", contextFactory, getMetaDataBytesPtr: null, errorMessage: out errorMessage, testData: out testData);
Assert.True(errorMessage.StartsWith("error CS0433: The type 'C1' exists in both "));
// Duplicate type in global namespace, at method scope.
ExpressionCompilerTestHelpers.CompileExpressionWithRetry(blocks, "new C2()", contextFactory, getMetaDataBytesPtr: null, errorMessage: out errorMessage, testData: out testData);
Assert.True(errorMessage.StartsWith("error CS0433: The type 'C2' exists in both "));
// Duplicate extension method, at method scope.
ExpressionCompilerTestHelpers.CompileExpressionWithRetry(blocks, "x.F()", contextFactory, getMetaDataBytesPtr: null, errorMessage: out errorMessage, testData: out testData);
Assert.Equal(errorMessage, "(1,3): error CS0121: The call is ambiguous between the following methods or properties: 'N.E.F(A)' and 'N.E.F(A)'");
// Same tests as above but in library that does not directly reference duplicates.
GetContextState(runtime, "A", out blocks, out moduleVersionId, out symReader, out typeToken, out localSignatureToken);
contextFactory = CreateTypeContextFactory(moduleVersionId, typeToken);
// Duplicate type in namespace, at type scope.
ExpressionCompilerTestHelpers.CompileExpressionWithRetry(blocks, "new N.C1()", contextFactory, getMetaDataBytesPtr: null, errorMessage: out errorMessage, testData: out testData);
Assert.Null(errorMessage);
var methodData = testData.GetMethodData("<>x.<>m0");
methodData.VerifyIL(
@"{
// Code size 6 (0x6)
.maxstack 1
IL_0000: newobj ""N.C1..ctor()""
IL_0005: ret
}");
Assert.Equal(methodData.Method.ReturnType.ContainingAssembly.ToDisplayString(), identityA.GetDisplayName());
GetContextState(runtime, "A.M", out blocks, out moduleVersionId, out symReader, out methodToken, out localSignatureToken);
contextFactory = CreateMethodContextFactory(moduleVersionId, symReader, methodToken, localSignatureToken);
// Duplicate type in global namespace, at method scope.
ExpressionCompilerTestHelpers.CompileExpressionWithRetry(blocks, "new C2()", contextFactory, getMetaDataBytesPtr: null, errorMessage: out errorMessage, testData: out testData);
Assert.Null(errorMessage);
methodData = testData.GetMethodData("<>x.<>m0");
methodData.VerifyIL(
@"{
// Code size 6 (0x6)
.maxstack 1
.locals init (A V_0, //x
A V_1) //y
IL_0000: newobj ""C2..ctor()""
IL_0005: ret
}");
Assert.Equal(methodData.Method.ReturnType.ContainingAssembly.ToDisplayString(), identityA.GetDisplayName());
// Duplicate extension method, at method scope.
ExpressionCompilerTestHelpers.CompileExpressionWithRetry(blocks, "x.F()", contextFactory, getMetaDataBytesPtr: null, errorMessage: out errorMessage, testData: out testData);
Assert.Null(errorMessage);
methodData = testData.GetMethodData("<>x.<>m0");
methodData.VerifyIL(
@"{
// Code size 7 (0x7)
.maxstack 1
.locals init (A V_0, //x
A V_1) //y
IL_0000: ldloc.0
IL_0001: call ""A N.E.F(A)""
IL_0006: ret
}");
Assert.Equal(methodData.Method.ReturnType.ContainingAssembly.ToDisplayString(), identityA.GetDisplayName());
}
}
private static void VerifyAssemblyReferences(
MetadataReference target,
ImmutableArray<MetadataReference> references,
ImmutableArray<AssemblyIdentity> expectedIdentities)
{
Assert.True(references.Contains(target));
var modules = references.SelectAsArray(r => r.ToModuleInstance(fullImage: null, symReader: null, includeLocalSignatures: false));
using (var runtime = new RuntimeInstance(modules))
{
var moduleVersionId = target.GetModuleVersionId();
var blocks = runtime.Modules.SelectAsArray(m => m.MetadataBlock);
var actualReferences = blocks.MakeAssemblyReferences(moduleVersionId, Microsoft.CodeAnalysis.CSharp.ExpressionEvaluator.CompilationExtensions.IdentityComparer);
// Verify identities.
var actualIdentities = actualReferences.SelectAsArray(r => r.GetAssemblyIdentity());
AssertEx.Equal(expectedIdentities, actualIdentities);
// Verify identities are unique.
var uniqueIdentities = actualIdentities.Distinct();
Assert.Equal(actualIdentities.Length, uniqueIdentities.Length);
}
}
private static void GetLocals(RuntimeInstance runtime, string methodName, MethodDebugInfoBytes debugInfo, ArrayBuilder<LocalAndMethod> locals, int count)
{
ImmutableArray<MetadataBlock> blocks;
Guid moduleVersionId;
ISymUnmanagedReader unused;
int methodToken;
int localSignatureToken;
GetContextState(runtime, methodName, out blocks, out moduleVersionId, out unused, out methodToken, out localSignatureToken);
var symReader = new MockSymUnmanagedReader(
new Dictionary<int, MethodDebugInfoBytes>()
{
{methodToken, debugInfo}
}.ToImmutableDictionary());
var context = EvaluationContext.CreateMethodContext(
default(CSharpMetadataContext),
blocks,
symReader,
moduleVersionId,
methodToken,
methodVersion: 1,
ilOffset: 0,
localSignatureToken: localSignatureToken);
string typeName;
var assembly = context.CompileGetLocals(locals, argumentsOnly: false, typeName: out typeName, testData: null);
Assert.NotNull(assembly);
if (count == 0)
{
Assert.Equal(0, assembly.Count);
}
else
{
Assert.InRange(assembly.Count, 0, int.MaxValue);
}
Assert.Equal(count, locals.Count);
}
public void DuplicateTypesInMscorlib()
{
var sourceConsole =
@"namespace System
{
public class Console
{
}
}";
var sourceObjectModel =
@"namespace System.Collections.ObjectModel
{
public class ReadOnlyDictionary<K, V>
{
}
}";
var source =
@"class C
{
static void Main()
{
var t = typeof(System.Console);
var o = (System.Collections.ObjectModel.ReadOnlyDictionary<object, object>)null;
}
}";
var systemConsoleComp = CreateCompilationWithMscorlib(sourceConsole, options: TestOptions.DebugDll, assemblyName: "System.Console");
var systemConsoleRef = systemConsoleComp.EmitToImageReference();
var systemObjectModelComp = CreateCompilationWithMscorlib(sourceObjectModel, options: TestOptions.DebugDll, assemblyName: "System.ObjectModel");
var systemObjectModelRef = systemObjectModelComp.EmitToImageReference();
var identityObjectModel = systemObjectModelRef.GetAssemblyIdentity();
// At runtime System.Runtime.dll contract assembly is replaced
// by mscorlib.dll and System.Runtime.dll facade assemblies;
// System.Console.dll and System.ObjectModel.dll are not replaced.
// Test different ordering of modules containing duplicates:
// { System.Console, mscorlib } and { mscorlib, System.ObjectModel }.
var contractReferences = ImmutableArray.Create(systemConsoleRef, SystemRuntimePP7Ref, systemObjectModelRef);
var runtimeReferences = ImmutableArray.Create(systemConsoleRef, MscorlibFacadeRef, SystemRuntimeFacadeRef, systemObjectModelRef);
// Verify the compiler reports duplicate types with facade assemblies.
var compilation = CreateCompilation(
source,
references: runtimeReferences,
options: TestOptions.DebugDll,
assemblyName: ExpressionCompilerUtilities.GenerateUniqueName());
compilation.VerifyDiagnostics(
// (5,31): error CS0433: The type 'Console' exists in both 'System.Console, Version=0.0.0.0, Culture=neutral, PublicKeyToken=null' and 'mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089'
// var t = typeof(System.Console);
Diagnostic(ErrorCode.ERR_SameFullNameAggAgg, "Console").WithArguments("System.Console, Version=0.0.0.0, Culture=neutral, PublicKeyToken=null", "System.Console", "mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089").WithLocation(5, 31),
// (6,49): error CS0433: The type 'ReadOnlyDictionary<K, V>' exists in both 'System.ObjectModel, Version=0.0.0.0, Culture=neutral, PublicKeyToken=null' and 'mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089'
// var o = (System.Collections.ObjectModel.ReadOnlyDictionary<object, object>)null;
Diagnostic(ErrorCode.ERR_SameFullNameAggAgg, "ReadOnlyDictionary<object, object>").WithArguments("System.ObjectModel, Version=0.0.0.0, Culture=neutral, PublicKeyToken=null", "System.Collections.ObjectModel.ReadOnlyDictionary<K, V>", "mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089").WithLocation(6, 49));
// EE should not report duplicate type when the original source
// is compiled with contract assemblies and the EE expression
// is compiled with facade assemblies.
compilation = CreateCompilation(
source,
references: contractReferences,
options: TestOptions.DebugDll,
assemblyName: ExpressionCompilerUtilities.GenerateUniqueName());
var reference = compilation.EmitToImageReference();
var modules = runtimeReferences.Add(reference).SelectAsArray(r => r.ToModuleInstance(null, null));
using (var runtime = new RuntimeInstance(modules))
{
var context = CreateMethodContext(runtime, "C.Main");
string errorMessage;
// { System.Console, mscorlib }
var testData = new CompilationTestData();
context.CompileExpression("typeof(System.Console)", out errorMessage, testData);
var methodData = testData.GetMethodData("<>x.<>m0");
methodData.VerifyIL(
@"{
// Code size 11 (0xb)
.maxstack 1
IL_0000: ldtoken ""System.Console""
IL_0005: call ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
IL_000a: ret
}");
// { mscorlib, System.ObjectModel }
testData = new CompilationTestData();
context.CompileExpression("(System.Collections.ObjectModel.ReadOnlyDictionary<object, object>)null", out errorMessage, testData);
methodData = testData.GetMethodData("<>x.<>m0");
methodData.VerifyIL(
@"{
// Code size 2 (0x2)
.maxstack 1
IL_0000: ldnull
IL_0001: ret
}");
Assert.Equal(methodData.Method.ReturnType.ContainingAssembly.ToDisplayString(), identityObjectModel.GetDisplayName());
}
}
public void IntrinsicMethods()
{
var sourceA =
@"public class A { }";
var sourceB =
@"public class A { }
public class B
{
static void M(A a)
{
}
}";
var assemblyNameA = ExpressionCompilerUtilities.GenerateUniqueName();
var compilationA = CreateCompilationWithMscorlibAndSystemCore(sourceA, options: TestOptions.DebugDll, assemblyName: assemblyNameA);
byte[] exeBytesA;
byte[] pdbBytesA;
ImmutableArray<MetadataReference> referencesA;
compilationA.EmitAndGetReferences(out exeBytesA, out pdbBytesA, out referencesA);
var referenceA = AssemblyMetadata.CreateFromImage(exeBytesA).GetReference(display: assemblyNameA);
var identityA = referenceA.GetAssemblyIdentity();
var moduleA = referenceA.ToModuleInstance(exeBytesA, SymReaderFactory.CreateReader(pdbBytesA));
var assemblyNameB = ExpressionCompilerUtilities.GenerateUniqueName();
var compilationB = CreateCompilationWithMscorlibAndSystemCore(sourceB, options: TestOptions.DebugDll, assemblyName: assemblyNameB, references: new[] { referenceA });
byte[] exeBytesB;
byte[] pdbBytesB;
ImmutableArray<MetadataReference> referencesB;
compilationB.EmitAndGetReferences(out exeBytesB, out pdbBytesB, out referencesB);
var referenceB = AssemblyMetadata.CreateFromImage(exeBytesB).GetReference(display: assemblyNameB);
var moduleB = referenceB.ToModuleInstance(exeBytesB, SymReaderFactory.CreateReader(pdbBytesB));
var moduleBuilder = ArrayBuilder<ModuleInstance>.GetInstance();
moduleBuilder.AddRange(referencesA.Select(r => r.ToModuleInstance(null, null)));
moduleBuilder.Add(moduleA);
moduleBuilder.Add(moduleB);
moduleBuilder.Add(ExpressionCompilerTestHelpers.IntrinsicAssemblyReference.ToModuleInstance(fullImage: null, symReader: null));
var modules = moduleBuilder.ToImmutableAndFree();
using (var runtime = new RuntimeInstance(modules))
{
ImmutableArray<MetadataBlock> blocks;
Guid moduleVersionId;
ISymUnmanagedReader symReader;
int methodToken;
int localSignatureToken;
GetContextState(runtime, "B.M", out blocks, out moduleVersionId, out symReader, out methodToken, out localSignatureToken);
var aliases = ImmutableArray.Create(
ExceptionAlias(typeof(ArgumentException)),
ReturnValueAlias(2, typeof(string)),
ObjectIdAlias(1, typeof(object)));
int attempts = 0;
ExpressionCompiler.CreateContextDelegate contextFactory = (b, u) =>
{
attempts++;
return EvaluationContext.CreateMethodContext(
ToCompilation(b, u, moduleVersionId),
symReader,
moduleVersionId,
methodToken,
methodVersion: 1,
ilOffset: 0,
localSignatureToken: localSignatureToken);
};
string errorMessage;
CompilationTestData testData;
ExpressionCompilerTestHelpers.CompileExpressionWithRetry(
blocks,
"(object)new A() ?? $exception ?? $1 ?? $ReturnValue2",
aliases,
contextFactory,
getMetaDataBytesPtr: null,
errorMessage: out errorMessage,
testData: out testData);
Assert.Null(errorMessage);
Assert.Equal(2, attempts);
var methodData = testData.GetMethodData("<>x.<>m0");
methodData.VerifyIL(
@"{
// Code size 49 (0x31)
.maxstack 2
IL_0000: newobj ""A..ctor()""
IL_0005: dup
IL_0006: brtrue.s IL_0030
IL_0008: pop
IL_0009: call ""System.Exception Microsoft.VisualStudio.Debugger.Clr.IntrinsicMethods.GetException()""
IL_000e: castclass ""System.ArgumentException""
IL_0013: dup
IL_0014: brtrue.s IL_0030
IL_0016: pop
IL_0017: ldstr ""$1""
IL_001c: call ""object Microsoft.VisualStudio.Debugger.Clr.IntrinsicMethods.GetObjectByAlias(string)""
IL_0021: dup
IL_0022: brtrue.s IL_0030
IL_0024: pop
IL_0025: ldc.i4.2
IL_0026: call ""object Microsoft.VisualStudio.Debugger.Clr.IntrinsicMethods.GetReturnValue(int)""
IL_002b: castclass ""string""
IL_0030: ret
}");
}
}