public override void Compile(ByteCode bc)
{
var endJumps = new List <Instruction>();
Instruction lastIfJmp = null;
foreach (var ifblock in _ifs)
{
using (bc.EnterSource(ifblock.Source))
{
if (lastIfJmp != null)
{
lastIfJmp.NumVal = bc.GetJumpPointForNextInstruction();
}
ifblock.Exp.Compile(bc);
lastIfJmp = bc.Emit_Jump(OpCode.Jf, -1);
bc.Emit_Enter(ifblock.StackFrame);
ifblock.Block.Compile(bc);
}
using (bc.EnterSource(_end))
{
bc.Emit_Leave(ifblock.StackFrame);
}
endJumps.Add(bc.Emit_Jump(OpCode.Jump, -1));
}
lastIfJmp.NumVal = bc.GetJumpPointForNextInstruction();
if (_else != null)
{
using (bc.EnterSource(_else.Source))
{
bc.Emit_Enter(_else.StackFrame);
_else.Block.Compile(bc);
}
using (bc.EnterSource(_end))
{
bc.Emit_Leave(_else.StackFrame);
}
}
foreach (var endjmp in endJumps)
{
endjmp.NumVal = bc.GetJumpPointForNextInstruction();
}
}
public override void Compile(ByteCode bc)
{
Loop L = new Loop()
{
Scope = m_StackFrame
};
bc.PushSourceRef(m_Repeat);
bc.LoopTracker.Loops.Push(L);
int start = bc.GetJumpPointForNextInstruction();
bc.Emit_Enter(m_StackFrame);
m_Block.Compile(bc);
bc.PopSourceRef();
bc.PushSourceRef(m_Until);
bc.Emit_Debug("..end");
m_Condition.Compile(bc);
bc.Emit_Leave(m_StackFrame);
bc.Emit_Jump(OpCode.Jf, start);
bc.LoopTracker.Loops.Pop();
int exitpoint = bc.GetJumpPointForNextInstruction();
foreach (Instruction i in L.BreakJumps)
{
i.NumVal = exitpoint;
}
bc.PopSourceRef();
}
public override void Compile(ByteCode bc)
{
var l = new Loop
{
Scope = _stackFrame
};
bc.PushSourceRef(_repeat);
bc.LoopTracker.Loops.Push(l);
int start = bc.GetJumpPointForNextInstruction();
bc.Emit_Enter(_stackFrame);
_block.Compile(bc);
bc.PopSourceRef();
bc.PushSourceRef(_until);
_condition.Compile(bc);
bc.Emit_Leave(_stackFrame);
bc.Emit_Jump(OpCode.Jf, start);
bc.LoopTracker.Loops.Pop();
int exitPoint = bc.GetJumpPointForNextInstruction();
foreach (var i in l.BreakJumps)
{
i.NumVal = exitPoint;
}
bc.PopSourceRef();
}
public override void Compile(ByteCode bc)
{
bc.PushSourceRef(m_RefFor);
Loop L = new Loop()
{
Scope = m_StackFrame
};
bc.LoopTracker.Loops.Push(L);
m_End.Compile(bc);
bc.Emit_ToNum(3);
m_Step.Compile(bc);
bc.Emit_ToNum(2);
m_Start.Compile(bc);
bc.Emit_ToNum(1);
int start = bc.GetJumpPointForNextInstruction();
var jumpend = bc.Emit_Jump(OpCode.JFor, -1);
bc.Emit_Enter(m_StackFrame);
//bc.Emit_SymStorN(m_VarName);
bc.Emit_Store(m_VarName, 0, 0);
m_InnerBlock.Compile(bc);
bc.PopSourceRef();
bc.PushSourceRef(m_RefEnd);
bc.Emit_Debug("..end");
bc.Emit_Leave(m_StackFrame);
bc.Emit_Incr(1);
bc.Emit_Jump(OpCode.Jump, start);
bc.LoopTracker.Loops.Pop();
int exitpoint = bc.GetJumpPointForNextInstruction();
foreach (Instruction i in L.BreakJumps)
{
i.NumVal = exitpoint;
}
jumpend.NumVal = exitpoint;
bc.Emit_Pop(3);
bc.PopSourceRef();
}
public override void Compile(ByteCode bc)
{
using (bc.EnterSource(_do))
{
bc.Emit_Enter(_stackFrame);
}
_block.Compile(bc);
using (bc.EnterSource(_end))
{
bc.Emit_Leave(_stackFrame);
}
}
public override void Compile(ByteCode bc)
{
bc.PushSourceRef(_refFor);
var l = new Loop
{
Scope = _stackFrame
};
bc.LoopTracker.Loops.Push(l);
_end.Compile(bc);
bc.Emit_ToNum(3);
_step.Compile(bc);
bc.Emit_ToNum(2);
_start.Compile(bc);
bc.Emit_ToNum(1);
int start = bc.GetJumpPointForNextInstruction();
var jumpend = bc.Emit_Jump(OpCode.JFor, -1);
bc.Emit_Enter(_stackFrame);
bc.Emit_Store(_varName, 0, 0);
_innerBlock.Compile(bc);
bc.PopSourceRef();
bc.PushSourceRef(_refEnd);
bc.Emit_Leave(_stackFrame);
bc.Emit_Incr(1);
bc.Emit_Jump(OpCode.Jump, start);
bc.LoopTracker.Loops.Pop();
int exitpoint = bc.GetJumpPointForNextInstruction();
foreach (var i in l.BreakJumps)
{
i.NumVal = exitpoint;
}
jumpend.NumVal = exitpoint;
bc.Emit_Pop(3);
bc.PopSourceRef();
}
public override void Compile(ByteCode bc)
{
Loop L = new Loop()
{
Scope = m_StackFrame
};
bc.LoopTracker.Loops.Push(L);
bc.PushSourceRef(m_Start);
int start = bc.GetJumpPointForNextInstruction();
m_Condition.Compile(bc);
var jumpend = bc.Emit_Jump(OpCode.Jf, -1);
bc.Emit_Enter(m_StackFrame);
m_Block.Compile(bc);
bc.PopSourceRef();
bc.Emit_Debug("..end");
bc.PushSourceRef(m_End);
bc.Emit_Leave(m_StackFrame);
bc.Emit_Jump(OpCode.Jump, start);
bc.LoopTracker.Loops.Pop();
int exitpoint = bc.GetJumpPointForNextInstruction();
foreach (int i in L.BreakJumps)
{
bc.SetNumVal(i, exitpoint);
}
bc.SetNumVal(jumpend, exitpoint);
bc.PopSourceRef();
}
public override void Compile(ByteCode bc)
{
//for var_1, ···, var_n in explist do block end
bc.PushSourceRef(m_RefFor);
Loop L = new Loop()
{
Scope = m_StackFrame
};
bc.LoopTracker.Loops.Push(L);
// get iterator tuple
m_RValues.Compile(bc);
// prepares iterator tuple - stack : iterator-tuple
bc.Emit_IterPrep();
// loop start - stack : iterator-tuple
int start = bc.GetJumpPointForNextInstruction();
bc.Emit_Enter(m_StackFrame);
// expand the tuple - stack : iterator-tuple, f, var, s
bc.Emit_ExpTuple(0);
// calls f(s, var) - stack : iterator-tuple, iteration result
bc.Emit_Call(2, "for..in");
// perform assignment of iteration result- stack : iterator-tuple, iteration result
for (int i = 0; i < m_NameExps.Length; i++)
{
m_NameExps[i].CompileAssignment(bc, 0, i);
}
// pops - stack : iterator-tuple
bc.Emit_Pop();
// repushes the main iterator var - stack : iterator-tuple, main-iterator-var
bc.Emit_Load(m_Names[0]);
// updates the iterator tuple - stack : iterator-tuple, main-iterator-var
bc.Emit_IterUpd();
// checks head, jumps if nil - stack : iterator-tuple, main-iterator-var
var endjump = bc.Emit_Jump(OpCode.JNil, -1);
// executes the stuff - stack : iterator-tuple
m_Block.Compile(bc);
bc.PopSourceRef();
bc.PushSourceRef(m_RefEnd);
// loop back again - stack : iterator-tuple
bc.Emit_Leave(m_StackFrame);
bc.Emit_Jump(OpCode.Jump, start);
bc.LoopTracker.Loops.Pop();
int exitpointLoopExit = bc.GetJumpPointForNextInstruction();
bc.Emit_Leave(m_StackFrame);
int exitpointBreaks = bc.GetJumpPointForNextInstruction();
bc.Emit_Pop();
foreach (Instruction i in L.BreakJumps)
{
i.NumVal = exitpointBreaks;
}
endjump.NumVal = exitpointLoopExit;
bc.PopSourceRef();
}