public void AddInstructions(LightCompiler compiler)
{
var endOfTrue = compiler.Instructions.MakeLabel();
var endOfFalse = compiler.Instructions.MakeLabel();
// condition
compiler.Compile(_expr);
compiler.CompileSetVariable(LightExceptionRewriter._lastValue, false);
compiler.Instructions.Emit(IsLightExceptionInstruction.Instance);
// true - an exception occured
compiler.Instructions.EmitBranchFalse(endOfTrue);
if (_lastValue != null)
{
compiler.CompileParameterExpression(_lastValue);
}
compiler.Instructions.EmitGoto(
compiler.GetBranchLabel(_target),
_retType != typeof(void),
_lastValue != null && _lastValue.Type != typeof(void)
);
compiler.Instructions.EmitBranch(endOfFalse, false, true);
// false - no exception
compiler.Instructions.MarkLabel(endOfTrue);
compiler.CompileParameterExpression(LightExceptionRewriter._lastValue);
compiler.Instructions.MarkLabel(endOfFalse);
}