internal static void LoadFrameOrClearStack(JavaStackMap stackMap,
Mono.Cecil.Cil.Instruction inst)
{
// following any instruction that breaks the normal flow of execution,
// we need to load an stack frame already recorded for some following
// instruction, if any (e.g. as part of a conditional branch sequence).
// if there isn't such a frame, just clear and reset the stack frame.
for (;;)
{
inst = inst.Next;
if (inst == null)
{
break;
}
if (stackMap.LoadFrame((ushort)inst.Offset, true, null))
{
return;
}
var flowControl = inst.OpCode.FlowControl;
if (flowControl == Mono.Cecil.Cil.FlowControl.Branch ||
flowControl == Mono.Cecil.Cil.FlowControl.Break ||
flowControl == Mono.Cecil.Cil.FlowControl.Cond_Branch ||
flowControl == Mono.Cecil.Cil.FlowControl.Return ||
flowControl == Mono.Cecil.Cil.FlowControl.Throw)
{
break;
}
}
stackMap.ClearStack();
}
public CodeLocals(CilMethod myMethod, MethodDefinition defMethod, JavaCode code)
{
this.code = code;
stackMap = code.StackMap = new JavaStackMap();
InitLocals(myMethod, defMethod);
WriteDebugData(myMethod.DeclType);
}
public CodeExceptions(MethodBody body, JavaCode _code, CodeLocals locals)
{
tryClauses = new List <TryClause>();
catchClauses = new Dictionary <int, CatchClause>();
code = _code;
stackMap = code.StackMap;
this.locals = locals;
if (body.HasExceptionHandlers)
{
if (!InitExceptionClauses(body))
{
throw CilMain.Where.Exception("error in exception handlers data");
}
}
}
void Process(int numCastableInterfaces)
{
code = newMethod.Code = new JavaCode(newMethod);
var oldLabel = code.SetLabel(0xFFFF);
locals = new CodeLocals(method, defMethod, code);
arrays = new CodeArrays(code, locals);
exceptions = new CodeExceptions(defMethodBody, code, locals);
InsertMethodInitCode(numCastableInterfaces);
code.SetLabel(oldLabel);
stackMap = code.StackMap;
stackMap.SaveFrame(0, false, CilMain.Where);
ProcessInstructions();
(code.MaxLocals, code.MaxStack) = locals.GetMaxLocalsAndStack();
locals.TrackUnconditionalBranch(null);
}
public CodeArrays(JavaCode _code, CodeLocals _locals)
{
locals = _locals;
code = _code;
stackMap = code.StackMap;
}
