public static void Term(GATNode node)
{
int childnum = node.ChildCount();
string mulop = "";
GATNode child;
Console.WriteLine(System.Reflection.MethodBase.GetCurrentMethod().ReflectedType.FullName);
child = node.getChild(0);
node.SetProperty("value", child.GetProperty("value"));
for (int i = 1; i < childnum; i++)
{
child = node.getChild(i);
if (child.GetProperty("value") == "*")
{
mulop = "*";
}
else if (child.GetProperty("value") == "/")
{
mulop = "/";
}
else//有待解决如何记录结果
{
CodeGenerator.AddCode(mulop, node.GetProperty("value"), child.GetProperty("value"), "T" + CodeGenerator.tempnum);
Console.WriteLine(mulop + " " + node.GetProperty("value") + " " + child.GetProperty("value") + " " + "T" + CodeGenerator.tempnum);
node.SetProperty("value", "T" + CodeGenerator.tempnum);
CodeGenerator.tempnum++;
}
}
}
public static GATNode _localDeclarations(this LL1Processor ll1)
{
var node = new GATNode();
var offset = 1;
var next = WordContainer.GetWordType(offset);
while (next == WordType.ID)
{
var varDeclaration = ll1._varDeclaration();
node.AddChild(varDeclaration);
next = WordContainer.GetWordType(offset);
}
if (node.ChildCount() == 0)
{
node.generator = LocalDeclarations2;
}
else
{
node.generator = LocalDeclarations1;
}
return(node);
}
public static void SelectionStmt(GATNode node)
{
Console.WriteLine(System.Reflection.MethodBase.GetCurrentMethod().ReflectedType.FullName);
var expression = node.getChild(0);
switch (node.ChildCount())
{
case 4:
{
var falseLabel = node.getChild(3).GetProperty("LabelName");
var jmpLine = Int32.Parse(node.getChild(1).GetProperty("CodeLine"));
CodeGenerator.SetCode(jmpLine, "je", expression.GetProperty("value"), "0", "0");
CodeGenerator.PutLabel(falseLabel, jmpLine);
break;
}
case 7:
{
var falseLabel = node.getChild(4).GetProperty("LabelName");
var jmpLine = Int32.Parse(node.getChild(1).GetProperty("CodeLine"));
CodeGenerator.SetCode(jmpLine, "je", expression.GetProperty("value"), "0", "0");
CodeGenerator.PutLabel(falseLabel, jmpLine);
var endLabel = node.getChild(6).GetProperty("LabelName");
var trueEndLine = Int32.Parse(node.getChild(3).GetProperty("CodeLine"));
CodeGenerator.SetCode(trueEndLine, "j", "#", "#", "#");
CodeGenerator.PutLabel(endLabel, trueEndLine);
break;
}
}
}
public static GATNode _args(this LL1Processor ll1)
{
var node = new GATNode();
var next = WordContainer.GetWordType();
if (ArgListProc.first.Contains(next))
{
var argList = ll1._argList();
node.AddChild(argList);
}
if (node.ChildCount() == 0)
{
node.generator = Args2;
}
else
{
node.generator = Args1;
}
return(node);
}
public static void ReturnStmt(GATNode node)
{
Console.WriteLine(System.Reflection.MethodBase.GetCurrentMethod().ReflectedType.FullName);
if (node.ChildCount() == 0)
{
CodeGenerator.AddCode("ret", "#", "#", "#");
}
else
{
var tmpNode = "T" + CodeGenerator.tempnum++;
CodeGenerator.AddCode("+", "EBP", "12", tmpNode);
CodeGenerator.AddCode("*", tmpNode, "4", tmpNode);
CodeGenerator.AddCode("+", "EBP", tmpNode, tmpNode);
CodeGenerator.AddCode("+", tmpNode, "16", tmpNode);
CodeGenerator.AddCode("[", tmpNode, "#", tmpNode);
CodeGenerator.AddCode("[", tmpNode, "#", tmpNode);
CodeGenerator.AddCode("]", node.getChild(0).GetProperty("value"), "#", tmpNode);
CodeGenerator.AddCode("ret", "#", "#", "#");
}
}