internal override void Walk(EmitContext ec)
{
if (ec.Resolving)
{
cond.Walk(ec);
body.Walk(ec);
}
if (ec.Emitting)
{
Label end_label = ec.DefineLabel();
Label start_label = ec.DefineLabel();
ec.MarkLabel(start_label);
cond.Walk(ec);
if (this is RNUntil)
{
ec.EmitBranchIfTrue(end_label);
}
else
{
ec.EmitBranchIfFalse(end_label);
}
body.Walk(ec);
// TODO return value in local
ec.EmitDiscard();
ec.EmitBranch(start_label);
ec.MarkLabel(end_label);
ec.EmitNull();
}
}
internal override void Walk(EmitContext ec)
{
if (ec.Resolving)
{
if (recv != null)
{
recv.Walk(ec);
}
if (args != null)
{
args.Walk(ec);
}
}
if (ec.Emitting)
{
RNArray a = (RNArray)args;
// rcver
if (recv != null)
{
recv.Walk(ec);
}
else
{
ec.EmitSelf();
}
// name
ec.EmitString(mid);
// args
int len = a != null ? a.alen : 0;
ec.EmitNewArgArray(len);
EmitArgsArray(ec, a);
// block
if (block != null)
{
ec.EmitCreateBlock(block);
}
else
{
ec.EmitNull();
}
ec.EmitSend();
}
}
internal override void Walk(EmitContext ec)
{
if (ec.Resolving)
{
cond.Walk(ec);
body.Walk(ec);
if (nd_else != null)
{
nd_else.Walk(ec);
}
}
if (ec.Emitting)
{
Label else_label = ec.DefineLabel();
Label end_label = ec.DefineLabel();
cond.Walk(ec);
ec.EmitBranchIfFalse(else_label);
// TODO rearrange the body and else clause in this case
if (body != null)
{
body.Walk(ec);
ec.EmitDiscard();
}
if (nd_else != null)
{
ec.EmitBranch(end_label);
}
ec.MarkLabel(else_label);
if (nd_else != null)
{
nd_else.Walk(ec);
ec.EmitDiscard();
}
ec.MarkLabel(end_label);
ec.EmitNull();
}
}
internal override void Walk(EmitContext ec)
{
if (ec.Resolving)
{
if (stts != null)
{
stts.Walk(ec);
}
}
if (ec.Emitting)
{
// rcver
ec.EmitBlockArg();
// thread
ec.EmitLoadThread();
// args
RNArray a = stts as RNArray;
int len = a != null ? a.alen : (stts != null ? 1 : 0);
ec.EmitNewArgArray(len);
if (a != null)
{
RNCall.EmitArgsArray(ec, a);
}
else if (stts != null)
{
RNCall.EmitStoreArg(ec, 0, stts);
}
// block
ec.EmitNull();
ec.EmitYield();
}
}
internal override void Walk(EmitContext ec)
{
if(ec.Resolving) {
cond.Walk(ec);
body.Walk(ec);
}
if(ec.Emitting) {
Label end_label = ec.DefineLabel();
Label start_label = ec.DefineLabel();
ec.MarkLabel(start_label);
cond.Walk(ec);
if(this is RNUntil)
ec.EmitBranchIfTrue(end_label);
else
ec.EmitBranchIfFalse(end_label);
body.Walk(ec);
// TODO return value in local
ec.EmitDiscard();
ec.EmitBranch(start_label);
ec.MarkLabel(end_label);
ec.EmitNull();
}
}
internal override void Walk(EmitContext ec)
{
if(ec.Resolving)
if(stts != null)
stts.Walk(ec);
if(ec.Emitting) {
// rcver
ec.EmitBlockArg();
// thread
ec.EmitLoadThread();
// args
RNArray a = stts as RNArray;
int len = a != null ? a.alen : (stts != null ? 1 : 0);
ec.EmitNewArgArray(len);
if(a != null) {
RNCall.EmitArgsArray(ec, a);
} else if(stts != null) {
RNCall.EmitStoreArg(ec, 0, stts);
}
// block
ec.EmitNull();
ec.EmitYield();
}
}
internal override void Walk(EmitContext ec)
{
if(ec.Resolving) {
if(recv != null)
recv.Walk(ec);
if(args != null)
args.Walk(ec);
}
if(ec.Emitting) {
RNArray a = (RNArray)args;
// rcver
if(recv != null) {
recv.Walk(ec);
} else {
ec.EmitSelf();
}
// name
ec.EmitString(mid);
// args
int len = a != null ? a.alen : 0;
ec.EmitNewArgArray(len);
EmitArgsArray(ec, a);
// block
if(block != null) {
ec.EmitCreateBlock(block);
} else {
ec.EmitNull();
}
ec.EmitSend();
}
}
internal override void Walk(EmitContext ec)
{
if(ec.Resolving) {
cond.Walk(ec);
body.Walk(ec);
if(nd_else != null)
nd_else.Walk(ec);
}
if(ec.Emitting) {
Label else_label = ec.DefineLabel();
Label end_label = ec.DefineLabel();
cond.Walk(ec);
ec.EmitBranchIfFalse(else_label);
// TODO rearrange the body and else clause in this case
if(body != null) {
body.Walk(ec);
ec.EmitDiscard();
}
if(nd_else != null) {
ec.EmitBranch(end_label);
}
ec.MarkLabel(else_label);
if(nd_else != null) {
nd_else.Walk(ec);
ec.EmitDiscard();
}
ec.MarkLabel(end_label);
ec.EmitNull();
}
}