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using Mono.Linker.Tests.Cases.Expectations.Assertions;
using System;
using System.Diagnostics.CodeAnalysis;
namespace Mono.Linker.Tests.Cases.DataFlow
{
// Note: this test's goal is to validate that the product correctly reports unrecognized patterns
// - so the main validation is done by the UnrecognizedReflectionAccessPattern attributes.
[SkipKeptItemsValidation]
public class LocalDataFlow
{
public static void Main ()
{
// These behave as expected
TestBranchMergeGoto ();
TestBranchMergeIf ();
TestBranchMergeIfElse ();
TestBranchMergeSwitch ();
TestBranchMergeTry ();
TestBranchMergeCatch ();
TestBranchMergeFinally ();
// The remaining tests illustrate current limitations of the analysis
// that we might be able to lift in the future.
// These are overly conservative (extraneous warnings)
TestBranchGoto ();
TestBranchIf ();
TestBranchIfElse ();
TestBranchSwitch ();
TestBranchTry ();
TestBranchCatch ();
TestBranchFinally ();
// These are missing warnings (potential failure at runtime)
TestBackwardsEdgeGoto ();
TestBackwardsEdgeLoop ();
}
[UnrecognizedReflectionAccessPattern (typeof (LocalDataFlow), nameof (RequirePublicFields), new Type[] { typeof (string) },
messageCode: "IL2072", message: new string[] {
"Mono.Linker.Tests.Cases.DataFlow.LocalDataFlow.GetWithPublicMethods()",
"type",
"Mono.Linker.Tests.Cases.DataFlow.LocalDataFlow.RequirePublicFields(String)"})]
[UnrecognizedReflectionAccessPattern (typeof (LocalDataFlow), nameof (RequirePublicMethods), new Type[] { typeof (string) },
messageCode: "IL2072", message: new string[] {
"Mono.Linker.Tests.Cases.DataFlow.LocalDataFlow.GetWithPublicFields()",
"type",
"Mono.Linker.Tests.Cases.DataFlow.LocalDataFlow.RequirePublicMethods(String)"})]
public static void TestBranchMergeGoto ()
{
string str = GetWithPublicMethods ();
if (String.Empty.Length == 0)
goto End;
str = GetWithPublicFields ();
End:
RequirePublicFields (str); // warns for GetWithPublicMethods
RequirePublicMethods (str); // warns for GetWithPublicFields
}
[UnrecognizedReflectionAccessPattern (typeof (LocalDataFlow), nameof (RequirePublicFields), new Type[] { typeof (string) },
messageCode: "IL2072", message: new string[] {
"Mono.Linker.Tests.Cases.DataFlow.LocalDataFlow.GetWithPublicMethods()",
"type",
"Mono.Linker.Tests.Cases.DataFlow.LocalDataFlow.RequirePublicFields(String)" })]
[UnrecognizedReflectionAccessPattern (typeof (LocalDataFlow), nameof (RequirePublicMethods), new Type[] { typeof (string) },
messageCode: "IL2072", message: new string[] {
"Mono.Linker.Tests.Cases.DataFlow.LocalDataFlow.GetWithPublicFields()",
"type",
"Mono.Linker.Tests.Cases.DataFlow.LocalDataFlow.RequirePublicMethods(String)" })]
public static void TestBranchMergeIf ()
{
string str = GetWithPublicMethods ();
if (String.Empty.Length == 0)
str = GetWithPublicFields ();
RequirePublicFields (str); // warns for GetWithPublicMethods
RequirePublicMethods (str); // warns for GetWithPublicFields
}
[UnrecognizedReflectionAccessPattern (typeof (LocalDataFlow), nameof (RequirePublicFields), new Type[] { typeof (string) },
messageCode: "IL2072", message: new string[] {
"Mono.Linker.Tests.Cases.DataFlow.LocalDataFlow.GetWithPublicMethods()",
"type",
"Mono.Linker.Tests.Cases.DataFlow.LocalDataFlow.RequirePublicFields(String)" })]
[UnrecognizedReflectionAccessPattern (typeof (LocalDataFlow), nameof (RequirePublicMethods), new Type[] { typeof (string) },
messageCode: "IL2072", message: new string[] {
"Mono.Linker.Tests.Cases.DataFlow.LocalDataFlow.GetWithPublicFields()",
"type",
"Mono.Linker.Tests.Cases.DataFlow.LocalDataFlow.RequirePublicMethods(String)" })]
public static void TestBranchMergeIfElse ()
{
string str = null;
if (String.Empty.Length == 0) {
str = GetWithPublicFields ();
} else {
str = GetWithPublicMethods ();
}
RequirePublicFields (str); // warns for GetWithPublicMethods
RequirePublicMethods (str); // warns for GetWithPublicFields
}
static int _switchOnField;
[UnrecognizedReflectionAccessPattern (typeof (LocalDataFlow), nameof (RequireNonPublicMethods), new Type[] { typeof (string) },
messageCode: "IL2072", message: new string[] {
"Mono.Linker.Tests.Cases.DataFlow.LocalDataFlow.GetWithPublicFields()",
"type",
"Mono.Linker.Tests.Cases.DataFlow.LocalDataFlow.RequireNonPublicMethods(String)" })]
[UnrecognizedReflectionAccessPattern (typeof (LocalDataFlow), nameof (RequireNonPublicMethods), new Type[] { typeof (string) },
messageCode: "IL2072", message: new string[] {
"Mono.Linker.Tests.Cases.DataFlow.LocalDataFlow.GetWithPublicMethods()",
"type",
"Mono.Linker.Tests.Cases.DataFlow.LocalDataFlow.RequireNonPublicMethods(String)" })]
[UnrecognizedReflectionAccessPattern (typeof (LocalDataFlow), nameof (RequireNonPublicMethods), new Type[] { typeof (string) },
messageCode: "IL2072", message: new string[] {
"Mono.Linker.Tests.Cases.DataFlow.LocalDataFlow.GetWithPublicConstructors()",
"type",
"Mono.Linker.Tests.Cases.DataFlow.LocalDataFlow.RequireNonPublicMethods(String)" })]
public static void TestBranchMergeSwitch ()
{
string str = null;
switch (_switchOnField) {
case 0:
str = GetWithPublicFields ();
break;
case 1:
str = GetWithNonPublicMethods ();
break;
case 2:
str = GetWithPublicMethods ();
break;
case 3:
str = GetWithPublicConstructors ();
break;
}
RequireNonPublicMethods (str); // warns for GetWithPublicFields, GetWithPublicMethods, and GetWithPublicConstructors
}
[UnrecognizedReflectionAccessPattern (typeof (LocalDataFlow), nameof (RequirePublicFields), new Type[] { typeof (string) },
messageCode: "IL2072", message: new string[] {
"Mono.Linker.Tests.Cases.DataFlow.LocalDataFlow.GetWithPublicMethods()",
"type",
"Mono.Linker.Tests.Cases.DataFlow.LocalDataFlow.RequirePublicFields(String)" })]
[UnrecognizedReflectionAccessPattern (typeof (LocalDataFlow), nameof (RequirePublicMethods), new Type[] { typeof (string) },
messageCode: "IL2072", message: new string[] {
"Mono.Linker.Tests.Cases.DataFlow.LocalDataFlow.GetWithPublicFields()",
"type",
"Mono.Linker.Tests.Cases.DataFlow.LocalDataFlow.RequirePublicMethods(String)" })]
public static void TestBranchMergeTry ()
{
string str = GetWithPublicMethods ();
try {
if (String.Empty.Length == 0)
throw null;
str = GetWithPublicFields ();
} catch {
}
RequirePublicFields (str); // warns for GetWithPublicMethods
RequirePublicMethods (str); // warns for GetWithPublicFields
}
[UnrecognizedReflectionAccessPattern (typeof (LocalDataFlow), nameof (RequirePublicFields), new Type[] { typeof (string) },
messageCode: "IL2072", message: new string[] {
"Mono.Linker.Tests.Cases.DataFlow.LocalDataFlow.GetWithPublicMethods()",
"type",
"Mono.Linker.Tests.Cases.DataFlow.LocalDataFlow.RequirePublicFields(String)" })]
[UnrecognizedReflectionAccessPattern (typeof (LocalDataFlow), nameof (RequirePublicMethods), new Type[] { typeof (string) },
messageCode: "IL2072", message: new string[] {
"Mono.Linker.Tests.Cases.DataFlow.LocalDataFlow.GetWithPublicFields()",
"type",
"Mono.Linker.Tests.Cases.DataFlow.LocalDataFlow.RequirePublicMethods(String)" })]
public static void TestBranchMergeCatch ()
{
string str = GetWithPublicMethods ();
try {
if (String.Empty.Length == 0)
throw null;
} catch {
str = GetWithPublicFields ();
}
RequirePublicFields (str); // warns for GetWithPublicMethods
RequirePublicMethods (str); // warns for GetWithPublicFields
}
[UnrecognizedReflectionAccessPattern (typeof (LocalDataFlow), nameof (RequirePublicFields), new Type[] { typeof (string) },
messageCode: "IL2072", message: new string[] {
"Mono.Linker.Tests.Cases.DataFlow.LocalDataFlow.GetWithPublicMethods()",
"type",
"Mono.Linker.Tests.Cases.DataFlow.LocalDataFlow.RequirePublicFields(String)" })]
[UnrecognizedReflectionAccessPattern (typeof (LocalDataFlow), nameof (RequirePublicMethods), new Type[] { typeof (string) },
messageCode: "IL2072", message: new string[] {
"Mono.Linker.Tests.Cases.DataFlow.LocalDataFlow.GetWithPublicFields()",
"type",
"Mono.Linker.Tests.Cases.DataFlow.LocalDataFlow.RequirePublicMethods(String)" })]
public static void TestBranchMergeFinally ()
{
string str = GetWithPublicMethods ();
try {
if (String.Empty.Length == 0)
throw null;
} catch {
} finally {
str = GetWithPublicFields ();
}
RequirePublicFields (str); // warns for GetWithPublicMethods
RequirePublicMethods (str); // warns for GetWithPublicFields
}
[UnrecognizedReflectionAccessPattern (typeof (LocalDataFlow), nameof (RequirePublicFields), new Type[] { typeof (string) }, messageCode: "IL2072")]
public static void TestBranchGoto ()
{
string str = GetWithPublicMethods ();
if (String.Empty.Length == 0)
goto End;
str = GetWithPublicFields ();
RequirePublicFields (str); // produces a warning
End:
return;
}
[UnrecognizedReflectionAccessPattern (typeof (LocalDataFlow), nameof (RequirePublicFields), new Type[] { typeof (string) }, messageCode: "IL2072")]
public static void TestBranchIf ()
{
string str = GetWithPublicMethods ();
if (String.Empty.Length == 0) {
str = GetWithPublicFields (); // dataflow will merge this with the value from the previous basic block
RequirePublicFields (str); // produces a warning
}
}
[UnrecognizedReflectionAccessPattern (typeof (LocalDataFlow), nameof (RequirePublicFields), new Type[] { typeof (string) }, messageCode: "IL2072")]
public static void TestBranchIfElse ()
{
string str;
if (String.Empty.Length == 0) {
// because this branch *happens* to come first in IL, we will only see one value
str = GetWithPublicMethods ();
RequirePublicMethods (str); // this works
} else {
// because this branch *happens* to come second in IL, we will see the merged value for str
str = GetWithPublicFields ();
RequirePublicFields (str); // produces a warning
}
}
[UnrecognizedReflectionAccessPattern (typeof (LocalDataFlow), nameof (RequireNonPublicMethods), new Type[] { typeof (string) }, messageCode: "IL2072")]
[UnrecognizedReflectionAccessPattern (typeof (LocalDataFlow), nameof (RequirePublicMethods), new Type[] { typeof (string) }, messageCode: "IL2072")]
[UnrecognizedReflectionAccessPattern (typeof (LocalDataFlow), nameof (RequirePublicMethods), new Type[] { typeof (string) }, messageCode: "IL2072")]
[UnrecognizedReflectionAccessPattern (typeof (LocalDataFlow), nameof (RequirePublicConstructors), new Type[] { typeof (string) }, messageCode: "IL2072")]
[UnrecognizedReflectionAccessPattern (typeof (LocalDataFlow), nameof (RequirePublicConstructors), new Type[] { typeof (string) }, messageCode: "IL2072")]
[UnrecognizedReflectionAccessPattern (typeof (LocalDataFlow), nameof (RequirePublicConstructors), new Type[] { typeof (string) }, messageCode: "IL2072")]
public static void TestBranchSwitch ()
{
string str = null;
switch (_switchOnField) {
case 0:
str = GetWithPublicFields ();
RequirePublicFields (str); // success
break;
case 1:
str = GetWithNonPublicMethods ();
RequireNonPublicMethods (str); // warns for GetWithPublicFields
break;
case 2:
str = GetWithPublicMethods ();
RequirePublicMethods (str); // warns for GetWithPublicFields and GetWithNonPublicMethods
break;
case 3:
str = GetWithPublicConstructors ();
RequirePublicConstructors (str); // warns for GetWithPublicFields, GetWithNonPublicMethods, GetWithPublicMethods
break;
}
}
[UnrecognizedReflectionAccessPattern (typeof (LocalDataFlow), nameof (RequirePublicFields), new Type[] { typeof (string) }, messageCode: "IL2072")]
public static void TestBranchTry ()
{
string str = GetWithPublicMethods ();
try {
if (String.Empty.Length == 0)
throw null;
str = GetWithPublicFields ();
RequirePublicFields (str); // warns for GetWithPublicMethods
} catch {
}
}
[UnrecognizedReflectionAccessPattern (typeof (LocalDataFlow), nameof (RequirePublicFields), new Type[] { typeof (string) }, messageCode: "IL2072")]
public static void TestBranchCatch ()
{
string str = GetWithPublicMethods ();
try {
if (String.Empty.Length == 0)
throw null;
} catch {
str = GetWithPublicFields ();
RequirePublicFields (str); // warns for GetWithPublicMethods
}
}
[UnrecognizedReflectionAccessPattern (typeof (LocalDataFlow), nameof (RequirePublicFields), new Type[] { typeof (string) }, messageCode: "IL2072")]
public static void TestBranchFinally ()
{
string str = GetWithPublicMethods ();
try {
if (String.Empty.Length == 0)
throw null;
} catch {
} finally {
str = GetWithPublicFields ();
RequirePublicFields (str); // warns for GetWithPublicMethods
}
}
[RecognizedReflectionAccessPattern]
public static void TestBackwardsEdgeLoop ()
{
string str = GetWithPublicMethods ();
string prev = null;
for (int i = 0; i < 5; i++) {
prev = str; // dataflow will only consider the first reaching definition of "str" above
str = GetWithPublicFields (); // dataflow will merge values to track both possible annotation kinds
}
// RequirePublicMethods (str); // this would produce a warning for the value that comes from GetWithPublicFields, as expected
RequirePublicMethods (prev); // this produces no warning, even though "prev" will have the value from GetWithPublicFields!
}
[RecognizedReflectionAccessPattern]
public static void TestBackwardsEdgeGoto ()
{
string str = null;
goto ForwardTarget;
BackwardTarget:
RequirePublicMethods (str); // should warn for the value that comes from GetWithPublicFields, but it doesn't.
return;
ForwardTarget:
str = GetWithPublicFields ();
goto BackwardTarget;
}
public static void RequirePublicFields (
[DynamicallyAccessedMembers(DynamicallyAccessedMemberTypes.PublicFields)]
string type)
{
}
public static void RequireNonPublicMethods (
[DynamicallyAccessedMembers(DynamicallyAccessedMemberTypes.NonPublicMethods)]
string type)
{
}
public static void RequirePublicMethods (
[DynamicallyAccessedMembers(DynamicallyAccessedMemberTypes.PublicMethods)]
string type)
{
}
public static void RequirePublicConstructors (
[DynamicallyAccessedMembers(DynamicallyAccessedMemberTypes.PublicConstructors)]
string type)
{
}
[return: DynamicallyAccessedMembers (DynamicallyAccessedMemberTypes.PublicFields)]
public static string GetWithPublicFields ()
{
return null;
}
[return: DynamicallyAccessedMembers (DynamicallyAccessedMemberTypes.NonPublicMethods)]
public static string GetWithNonPublicMethods ()
{
return null;
}
[return: DynamicallyAccessedMembers (DynamicallyAccessedMemberTypes.PublicMethods)]
public static string GetWithPublicMethods ()
{
return null;
}
[return: DynamicallyAccessedMembers (DynamicallyAccessedMemberTypes.PublicConstructors)]
public static string GetWithPublicConstructors ()
{
return null;
}
}
}
|
