private void CGExp(FuncInfo funcInfo, ExpNode node, int r, int n)
{
switch (node.Type)
{
case GrammarNodeType.ConstExp:
var constNode = node as ConstExpNode;
switch (constNode.ExpType)
{
case ConstExpNode.ConstExpType.FalseExp:
funcInfo.EmitLoadBool(r, 0, 0);
break;
case ConstExpNode.ConstExpType.IdentifierExp:
CGNameExp(funcInfo, constNode, r);
break;
case ConstExpNode.ConstExpType.NilExp:
funcInfo.EmitLoadNil(r, n);
break;
case ConstExpNode.ConstExpType.NumberExp:
funcInfo.EmitLoadK(r, constNode.tokenValue);
break;
case ConstExpNode.ConstExpType.StringExp:
funcInfo.EmitLoadK(r, constNode.tokenValue);
break;
case ConstExpNode.ConstExpType.TrueExp:
funcInfo.EmitLoadBool(r, 1, 0);
break;
case ConstExpNode.ConstExpType.VarargExp:
CGVarargExp(funcInfo, constNode, r, n);
break;
}
break;
case GrammarNodeType.ParenExp:
CGExp(funcInfo, (node as ParenExpNode).Exp, r, 1);
break;
case GrammarNodeType.TableAccessExp:
CGTableAccessExp(funcInfo, node as TableAccessExpNode, r);
break;
case GrammarNodeType.TableConstructorExp:
CGTableConstructorExp(funcInfo, node as TableConstructorExpNode, r);
break;
case GrammarNodeType.UnaryExp:
CGUnaryExp(funcInfo, node as UnaryExpNode, r);
break;
case GrammarNodeType.FuncCallExp:
CGFuncCallExp(funcInfo, node as FuncCallExpNode, r, n);
break;
case GrammarNodeType.ConcatExp:
CGConcatExp(funcInfo, node as ConcatExpNode, r);
break;
case GrammarNodeType.FunctionDefExp:
CGFuncDefExp(funcInfo, node as FuncdefExpNode, r);
break;
case GrammarNodeType.DoubleOperationExp:
CGBinOpExp(funcInfo, node as DoubleOperationExpNode, r);
break;
}
}
