sgaliamov
/ illuminator-sample-12.cs
Created
May 2, 2021 15:32
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| Int32 Foo(Int32) | |
| 1: .ldarg.0 | 1 # we can see resulting the stack size | |
| 2: .ldc.i4.2 | 2 | |
| 4: .ceq | 1 | |
| 9: .brfalse Label_0 | 0 # we can see where the branching instruction is pointing | |
| 10: .ldc.i4.1 | 1 | |
| 15: .br Label_1 | 0 | |
| Label_0: # named label | |
| 16: .ldarg.0 | 1 | |
| 17: .ldc.i4.3 | 2 |
sgaliamov
/ illuminator-sample-11.cs
Created
May 2, 2021 15:31
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| using static CustomExtensions.Functions; | |
| ... | |
| var foo = new DynamicMethod("Foo", typeof(int), new[] { typeof(int) }) | |
| .GetILGenerator() | |
| .UseIlluminator( | |
| enableTraceLogger: true, // enable tracing (optional) | |
| Ret(If(Ceq(Ldarg_0(), Ldc_I4_2()), // condition | |
| Ldc_I4_1(), // then | |
| Add(Ldarg_0(), Ldc_I4_3())))) // else | |
| .CreateDelegate<Func<int, int>>(); |
sgaliamov
/ illuminator-sample-10.cs
Created
May 2, 2021 15:31
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| if (condition()) { | |
| then(); | |
| } else { | |
| otherwise(); | |
| } |
sgaliamov
/ illuminator-sample-9.cs
Created
May 2, 2021 15:30
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| namespace CustomExtensions | |
| { | |
| public static class Functions | |
| { | |
| public static ILEmitterFunc If( | |
| ILEmitterFunc condition, | |
| ILEmitterFunc then, | |
| ILEmitterFunc @else) => (in ILEmitter il) => | |
| il.Brfalse(condition, out var otherwise) | |
| .Emit(then) |
sgaliamov
/ illuminator-sample-8.cs
Created
May 2, 2021 15:29
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| public static ILEmitter Beq_S( | |
| this ILEmitter self, | |
| in ILEmitterFunc func1, | |
| in ILEmitterFunc func2, | |
| in Label label) { | |
| func1(self); | |
| func2(self); | |
| return self.Beq_S(label); | |
| } | |
| ... |
sgaliamov
/ illuminator-sample-7.cs
Created
May 2, 2021 15:29
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| public ILEmitter Beq_S(in Label label) { | |
| ValidateJump(label); // can validate that short version of a jump instruction is used correctly. | |
| _il.Emit(OpCodes.Beq_S, label); // pass the right parameter that the instruction needs. | |
| _logger?.Log(OpCodes.Beq_S, label); // embed the logger into each method. | |
| return this; | |
| } |
sgaliamov
/ illuminator-sample-6.cs
Created
May 2, 2021 15:28
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| public static ILEmitter Add(this ILEmitter self, in ILEmitterFunc func1, in ILEmitterFunc func2) { | |
| func1(self); | |
| func2(self); | |
| return self.Add(); // and this finally does the real generator.Emit(OpCodes.Add); | |
| } |
sgaliamov
/ illuminator-sample-5.cs
Last active
May 2, 2021 15:26
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| public delegate ILEmitter ILEmitterFunc(in ILEmitter emitter); | |
| ... | |
| public static ILEmitterFunc Add(ILEmitterFunc func1, ILEmitterFunc func2) => | |
| (in ILEmitter il) => il.Add(func1, func2); |
sgaliamov
/ illuminator-sample-4.cs
Created
May 2, 2021 15:18
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| using static Illuminator.Functions; | |
| ... | |
| il.Brfalse_S(Ceq(Ldarg_0(), Ldc_I4_2()), out var label) // if (value == 2) { | |
| .Ret(Ldc_I4_1()) // return 1; | |
| .MarkLabel(label) // } | |
| .Ret(Add(Ldarg_0(), Ldc_I4_3())); // return value + 3; |
sgaliamov
/ illuminator-sample-3.cs
Last active
May 2, 2021 15:16
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| var method = new DynamicMethod("Foo", typeof(int), new[] { typeof(int) }); | |
| var generator = method.GetILGenerator(); | |
| var label = generator.DefineLabel(); | |
| var il = generator.UseIlluminator(); // Creates wrapper | |
| il.Ldarg_0() | |
| .Ldc_I4_2() | |
| .Ceq() | |
| .Brfalse_S(label) // if (value == 2) | |
| .Ldc_I4_1() | |
| .Ret() // return 1 |
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