我正在使用C#编写PLC语言解释器.该PLC语言包含20多种数据类型和25种左右的指令.一旦我开始生成代码,我就会平衡两种不同的方式来编写指令:
1)每种指令都在一个包含大的类中表示switch,以便选择数据类型.例:
public class ADD : Instruction
{
private string type;
public ADD(string type)
{
this.type = type;
}
public bool Exec(Context c)
{
switch (type)
{
case "INT":
short valor2 = c.PopINT();
short valor = c.PopINT();
short result = (short)(valor + valor2);
c.PushINT(result);
break;
case "DINT":
int valor4 = c.PopDINT();
int valor3 = c.PopDINT();
int result2 = (int)(valor4 + valor3);
c.PushDINT(result2);
break;
case "BOOL":
// Implement BOOL
break;
// Implement other types...
default:
break;
}
c.IP++;
return …Run Code Online (Sandbox Code Playgroud)