/// <summary>
/// Compiles a method into IL instructions.
/// </summary>
/// <param name="method">Method to compile.</param>
/// <returns>
/// List of ILInstructions.
/// </returns>
/// <remarks>
/// Utilizes harmony library.
/// </remarks>
public static List <CodeInstruction> MethodToILInstructions(MethodBase method)
{
DynamicMethod dynamicMethod = DynamicTools.CreateDynamicMethod(method, "_ILParser");
if (dynamicMethod == null)
{
return(null);
}
// Get il generato
ILGenerator il = dynamicMethod.GetILGenerator();
LocalBuilder[] existingVariables = DynamicTools.DeclareLocalVariables(method, il);
Dictionary <string, LocalBuilder> privateVars = new Dictionary <string, LocalBuilder>();
MethodBodyReader reader = new MethodBodyReader(method, il);
reader.DeclareVariables(existingVariables);
reader.ReadInstructions();
List <ILInstruction> ilInstructions = (List <ILInstruction>)FIilInstructions.GetValue(reader);
// Defines function start label
il.DefineLabel();
// Define labels
foreach (ILInstruction ilInstruction in ilInstructions)
{
switch (ilInstruction.opcode.OperandType)
{
case OperandType.InlineSwitch:
{
ILInstruction[] array = ilInstruction.operand as ILInstruction[];
if (array != null)
{
List <Label> labels = new List <Label>();
ILInstruction[] array2 = array;
foreach (ILInstruction iLInstruction2 in array2)
{
Label item = il.DefineLabel();
iLInstruction2.labels.Add(item);
labels.Add(item);
}
ilInstruction.argument = labels.ToArray();
}
break;
}
case OperandType.InlineBrTarget:
case OperandType.ShortInlineBrTarget:
{
ILInstruction iLInstruction = ilInstruction.operand as ILInstruction;
if (iLInstruction != null)
{
Label label2 = il.DefineLabel();
iLInstruction.labels.Add(label2);
ilInstruction.argument = label2;
}
break;
}
}
}
// Transpile code
CodeTranspiler codeTranspiler = new CodeTranspiler(ilInstructions);
List <CodeInstruction> result = codeTranspiler.GetResult(il, method);
// Replace debug commands with normal
foreach (CodeInstruction codeInstruction in result)
{
OpCode opCode = codeInstruction.opcode;
codeInstruction.opcode = ReplaceShortJumps(opCode);
}
return(result);
}
