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Fix try/catch/finally il code generation #42

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Fix try/catch/finally il code generation #42

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16 changes: 8 additions & 8 deletions src/Pose/IL/MethodRewriter.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -169,14 +169,6 @@ private void EmitILForExceptionHandlers(ILGenerator ilGenerator, Instruction ins
ilGenerator.BeginExceptionBlock();
}

foreach (var handler in handlers.Where(h => h.HandlerStart == instruction.Offset))
{
if (handler.Flag == "Clause")
ilGenerator.BeginCatchBlock(handler.CatchType);
else if (handler.Flag == "Finally")
ilGenerator.BeginFinallyBlock();
}

foreach (var handler in handlers.Where(h => h.HandlerEnd == instruction.Offset))
{
if (handler.Flag == "Clause")
Expand All @@ -190,6 +182,14 @@ private void EmitILForExceptionHandlers(ILGenerator ilGenerator, Instruction ins

ilGenerator.EndExceptionBlock();
}

foreach (var handler in handlers.Where(h => h.HandlerStart == instruction.Offset))
{
if (handler.Flag == "Clause")
ilGenerator.BeginCatchBlock(handler.CatchType);
else if (handler.Flag == "Finally")
ilGenerator.BeginFinallyBlock();
}
}

private void EmitILForInlineNone(ILGenerator ilGenerator, Instruction instruction)
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24 changes: 24 additions & 0 deletions test/Pose.Tests/IL/MethodRewriterTests.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -50,5 +50,29 @@ public void TestConstructorRewrite()
Assert.AreEqual(typeof(void), dynamicMethod.ReturnType);
Assert.AreEqual(typeof(List<string>), dynamicMethod.GetParameters()[0].ParameterType);
}

[TestMethod]
public void TestExceptionHandlersRewrite()
{
MethodInfo methodInfo = typeof(MethodRewriterTests).GetMethod("ExceptionHandlersRewriteMethod");
MethodRewriter methodRewriter = MethodRewriter.CreateRewriter(methodInfo);
DynamicMethod dynamicMethod = methodRewriter.Rewrite() as DynamicMethod;

Delegate func = dynamicMethod.CreateDelegate(typeof(Func<int>));
Assert.AreEqual(1, (int)func.DynamicInvoke());
}

public static int ExceptionHandlersRewriteMethod()
{
try
{
return 1;
}
catch
{
return 0;
}
finally {}
}
}
}