Mono.CSharp.Switch.DoEmit C# (CSharp) Method

		protected override void DoEmit (EmitContext ec)
		{
			//
			// Needed to emit anonymous storey initialization
			// Otherwise it does not contain any statements for now
			//
			block.Emit (ec);

			default_target = ec.DefineLabel ();
			null_target = ec.DefineLabel ();

			// Store variable for comparission purposes
			// TODO: Don't duplicate non-captured VariableReference
			LocalTemporary value;
			if (HaveUnwrap) {
				value = new LocalTemporary (SwitchType);
				unwrap.EmitCheck (ec);
				ec.Emit (OpCodes.Brfalse, null_target);
				new_expr.Emit (ec);
				value.Store (ec);
			} else if (!is_constant) {
				value = new LocalTemporary (SwitchType);
				new_expr.Emit (ec);
				value.Store (ec);
			} else
				value = null;

			//
			// Setup the codegen context
			//
			Label old_end = ec.LoopEnd;
			Switch old_switch = ec.Switch;
			
			ec.LoopEnd = ec.DefineLabel ();
			ec.Switch = this;

			// Emit Code.
			if (is_constant) {
				if (constant_section != null)
					constant_section.Block.Emit (ec);
			} else if (string_dictionary != null) {
				DoEmitStringSwitch (value, ec);
			} else {
				TableSwitchEmit (ec, value);
			}

			if (value != null)
				value.Release (ec);

			// Restore context state. 
			ec.MarkLabel (ec.LoopEnd);

			//
			// Restore the previous context
			//
			ec.LoopEnd = old_end;
			ec.Switch = old_switch;
		}