public override void Compile(ByteCode bc)
{
var L = new Loop
{
Scope = m_StackFrame
};
bc.PushSourceRef(m_Repeat);
bc.LoopTracker.Loops.Push(L);
var 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();
var exitpoint = bc.GetJumpPointForNextInstruction();
foreach (var i in L.BreakJumps)
i.NumVal = exitpoint;
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 (Instruction i in L.BreakJumps)
i.NumVal = exitpoint;
jumpend.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 int CompileBody(ByteCode bc, string friendlyName)
{
var funcName = friendlyName ?? ("<" + m_Begin.FormatLocation(bc.Script, true) + ">");
bc.PushSourceRef(m_Begin);
var I = bc.Emit_Jump(OpCode.Jump, -1);
var meta = bc.Emit_FuncMeta(funcName);
var metaip = bc.GetJumpPointForLastInstruction();
bc.Emit_BeginFn(m_StackFrame);
bc.LoopTracker.Loops.Push(new LoopBoundary());
var entryPoint = bc.GetJumpPointForLastInstruction();
if (m_GlobalEnv != null)
{
bc.Emit_Literal(DynValue.NewTable(m_GlobalEnv));
bc.Emit_Store(m_Env, 0, 0);
bc.Emit_Pop();
}
if (m_ParamNames.Length > 0)
bc.Emit_Args(m_ParamNames);
m_Statement.Compile(bc);
bc.PopSourceRef();
bc.PushSourceRef(m_End);
bc.Emit_Ret(0);
bc.LoopTracker.Loops.Pop();
I.NumVal = bc.GetJumpPointForNextInstruction();
meta.NumVal = bc.GetJumpPointForLastInstruction() - metaip;
bc.PopSourceRef();
return entryPoint;
}
public void Dispose()
{
m_Bc.PopSourceRef();
}
public int CompileBody(ByteCode bc, string friendlyName)
{
string funcName = friendlyName ?? ("<" + this.m_Begin.FormatLocation(bc.Script, true) + ">");
bc.PushSourceRef(m_Begin);
Instruction I = bc.Emit_Jump(OpCode.Jump, -1);
Instruction meta = bc.Emit_Meta(funcName, OpCodeMetadataType.FunctionEntrypoint);
int metaip = bc.GetJumpPointForLastInstruction();
bc.Emit_BeginFn(m_StackFrame);
bc.LoopTracker.Loops.Push(new LoopBoundary());
int entryPoint = bc.GetJumpPointForLastInstruction();
if (m_UsesGlobalEnv)
{
bc.Emit_Load(SymbolRef.Upvalue(WellKnownSymbols.ENV, 0));
bc.Emit_Store(m_Env, 0, 0);
bc.Emit_Pop();
}
if (m_ParamNames.Length > 0)
bc.Emit_Args(m_ParamNames);
m_Statement.Compile(bc);
bc.PopSourceRef();
bc.PushSourceRef(m_End);
bc.Emit_Ret(0);
bc.LoopTracker.Loops.Pop();
I.NumVal = bc.GetJumpPointForNextInstruction();
meta.NumVal = bc.GetJumpPointForLastInstruction() - metaip;
bc.PopSourceRef();
return entryPoint;
}
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();
}