internal static int LoadChunk(Script script, SourceCode source, ByteCode bytecode)
{
ScriptLoadingContext lcontext = CreateLoadingContext(script, source);
try
{
Statement stat;
using (script.PerformanceStats.StartStopwatch(Diagnostics.PerformanceCounter.AstCreation))
stat = new ChunkStatement(lcontext);
int beginIp = -1;
//var srcref = new SourceRef(source.SourceID);
using (script.PerformanceStats.StartStopwatch(Diagnostics.PerformanceCounter.Compilation))
using (bytecode.EnterSource(null))
{
bytecode.Emit_Nop(string.Format("Begin chunk {0}", source.Name));
beginIp = bytecode.GetJumpPointForLastInstruction();
stat.Compile(bytecode);
bytecode.Emit_Nop(string.Format("End chunk {0}", source.Name));
}
//Debug_DumpByteCode(bytecode, source.SourceID);
return beginIp;
}
catch (SyntaxErrorException ex)
{
ex.DecorateMessage(script);
throw;
}
}
public override void Compile(ByteCode bc)
{
var meta = bc.Emit_FuncMeta("<chunk-root>");
var metaip = bc.GetJumpPointForLastInstruction();
bc.Emit_BeginFn(m_StackFrame);
bc.Emit_Args(m_VarArgs);
bc.Emit_Literal(DynValue.NewTable(m_GlobalEnv));
bc.Emit_Store(m_Env, 0, 0);
bc.Emit_Pop();
m_Block.Compile(bc);
bc.Emit_Ret(0);
meta.NumVal = bc.GetJumpPointForLastInstruction() - metaip;
}
public override void Compile(ByteCode bc)
{
bc.Emit_Clean(m_StackFrame);
Address = bc.GetJumpPointForLastInstruction();
foreach (var gotostat in m_Gotos)
gotostat.SetAddress(Address);
}
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 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;
}