public void Set(ref TValue key, ref TValue val)
{
var cell = Get(ref key);
if(cell == TheNilValue) {
cell = NewTableKey(ref key);
}
cell.V.SetObj(ref val);
}
public void SetInt(int key, ref TValue val)
{
var cell = GetInt(key);
if(cell == TheNilValue) {
var k = new TValue();
k.SetNValue(key);
cell = NewTableKey(ref k);
}
cell.V.SetObj(ref val);
// ULDebug.Log(string.Format("---------------- SetInt {0} -> {1}", key, val));
// DumpParts();
}
public bool Equals(TValue o)
{
if(Tt != o.Tt || NValue != o.NValue)
{ return false; }
switch(Tt) {
case (int)LuaType.LUA_TNIL:
return true;
case (int)LuaType.LUA_TSTRING:
return SValue() == o.SValue();
default:
return System.Object.ReferenceEquals(OValue, o.OValue);
}
}
public bool Equals(TValue o)
{
if(Tt != o.Tt || NValue != o.NValue || UInt64Value != o.UInt64Value)
{ return false; }
switch(Tt) {
case (int)LuaType.LUA_TNIL: return true;
case (int)LuaType.LUA_TBOOLEAN: return BValue() == o.BValue();
case (int)LuaType.LUA_TNUMBER: return NValue == o.NValue;
case (int)LuaType.LUA_TUINT64: return UInt64Value == o.UInt64Value;
case (int)LuaType.LUA_TSTRING: return SValue() == o.SValue();
default: return System.Object.ReferenceEquals(OValue, o.OValue);
}
}
public StkId GetInt(int key)
{
if(0 < key && key-1 < ArrayPart.Length)
{ return ArrayPart[key-1]; }
var k = new TValue();
k.SetNValue(key);
for(var node = GetHashNode(ref k); node != null; node = node.Next) {
if(node.Key.V.TtIsNumber() && node.Key.V.NValue == (double)key) {
return node.Val;
}
}
return TheNilValue;
}
private void CallTM( ref TValue f, ref TValue p1, ref TValue p2, StkId p3, bool hasres )
{
var result = p3.Index;
var func = Top;
StkId.inc(ref Top).V.SetObj(ref f); // push function
StkId.inc(ref Top).V.SetObj(ref p1); // push 1st argument
StkId.inc(ref Top).V.SetObj(ref p2); // push 2nd argument
if( !hasres ) // no result? p3 is 3rd argument
StkId.inc(ref Top).V.SetObj(ref p3.V);
D_CheckStack(0);
D_Call( func, (hasres ? 1 : 0), CI.IsLua );
if( hasres ) // if has result, move it ot its place
{
Top = Stack[Top.Index - 1];
Stack[result].V.SetObj(ref Top.V);
}
}
public StkId Get(ref TValue key)
{
if(key.Tt == (int)LuaType.LUA_TNIL) { return TheNilValue; }
if(IsPositiveInteger(ref key))
{ return GetInt((int)key.NValue); }
if(key.Tt == (int)LuaType.LUA_TSTRING)
{ return GetStr(key.SValue()); }
var h = key.GetHashCode();
for(var node = GetHashNode(h); node != null; node = node.Next) {
if(node.Key.V == key) {
{ return node.Val; }
}
}
return TheNilValue;
}
/*
** returns the index for `key' if `key' is an appropriate key to live in
** the array part of the table, -1 otherwise.
*/
private int ArrayIndex(ref TValue k)
{
if(IsPositiveInteger(ref k))
return (int)k.NValue;
else
return -1;
}
public void SetInt(int key, ref TValue val)
{
var cell = GetInt(key);
if(cell == TheNilValue) {
var k = new TValue();
k.SetNValue(key);
cell = NewTableKey(ref k);
}
cell.V.SetObj(ref val);
}
internal bool V_RawEqualObj( ref TValue t1, ref TValue t2 )
{
return (t1.Tt == t2.Tt) && V_EqualObject( ref t1, ref t2, true );
}
private bool ToString(ref TValue o)
{
if(o.TtIsString()) { return true; }
return V_ToString(ref o);
}
private bool IsFalse(ref TValue v)
{
if( v.TtIsNil() )
return true;
if((v.TtIsBoolean() && v.BValue() == false))
return true;
return false;
}
public static TValue Clone(TValue other)
{
return((TValue)other.MemberwiseClone());
}
private void V_Execute()
{
ExecuteEnvironment env;
CallInfo ci = CI;
newframe:
Utl.Assert(ci == CI);
var cl = Stack[ci.FuncIndex].V.ClLValue();
env.Stack = Stack;
env.K = cl.Proto.K;
env.Base = ci.BaseIndex;
#if DEBUG_NEW_FRAME
ULDebug.Log( "#### NEW FRAME #########################################################################" );
ULDebug.Log( "## cl:" + cl );
ULDebug.Log( "## Base:" + env.Base );
ULDebug.Log( "########################################################################################" );
#endif
while( true )
{
Instruction i = ci.SavedPc.ValueInc;
env.I = i;
#if DEBUG_SRC_INFO
int line = 0;
string src = "";
if(ci.IsLua) {
line = GetCurrentLine(ci);
src = GetCurrentLuaFunc(ci).Proto.Source;
}
#endif
StkId ra = env.RA;
#if DEBUG_DUMP_INS_STACK
#if DEBUG_DUMP_INS_STACK_EX
DumpStack( env.Base, i.ToString() );
#else
DumpStack( env.Base );
#endif
#endif
#if DEBUG_INSTRUCTION
ULDebug.Log( System.DateTime.Now + " [VM] ======================================================================== Instruction: " + i
#if DEBUG_INSTRUCTION_WITH_STACK
+ "\n" + DumpStackToString( env.Base.Index )
#endif
);
#endif
#if DEBUG_RECORD_INS
InstructionHistory.Enqueue(i);
if( InstructionHistory.Count > 100 ) {
InstructionHistory.Dequeue();
}
#endif
switch( i.GET_OPCODE() )
{
case OpCode.OP_MOVE:
{
var rb = env.RB;
#if DEBUG_OP_MOVE
ULDebug.Log( "[VM] ==== OP_MOVE rb:" + rb );
ULDebug.Log( "[VM] ==== OP_MOVE ra:" + ra );
#endif
ra.V.SetObj(ref rb.V);
break;
}
case OpCode.OP_LOADK:
{
var rb = env.K[i.GETARG_Bx()];
ra.V.SetObj(ref rb.V);
break;
}
case OpCode.OP_LOADKX:
{
Utl.Assert( ci.SavedPc.Value.GET_OPCODE() == OpCode.OP_EXTRAARG );
var rb = env.K[ci.SavedPc.ValueInc.GETARG_Ax()];
ra.V.SetObj(ref rb.V);
break;
}
case OpCode.OP_LOADBOOL:
{
ra.V.SetBValue(i.GETARG_B() != 0);
if( i.GETARG_C() != 0 )
ci.SavedPc.Index += 1; // skip next instruction (if C)
break;
}
case OpCode.OP_LOADNIL:
{
int b = i.GETARG_B();
int index = ra.Index;
do {
Stack[index++].V.SetNilValue();
} while (b-- > 0);
break;
}
case OpCode.OP_GETUPVAL:
{
int b = i.GETARG_B();
ra.V.SetObj(ref cl.Upvals[b].V.V);
#if DEBUG_OP_GETUPVAL
// for( var j=0; j<cl.Upvals.Length; ++j)
// {
// ULDebug.Log("[VM] ==== GETUPVAL upval:" + cl.Upvals[j] );
// }
ULDebug.Log( "[VM] ==== GETUPVAL b:" + b );
ULDebug.Log( "[VM] ==== GETUPVAL ra:" + ra );
#endif
break;
}
case OpCode.OP_GETTABUP:
{
int b = i.GETARG_B();
var key = env.RKC;
V_GetTable( cl.Upvals[b].V, key, ra );
#if DEBUG_OP_GETTABUP
ULDebug.Log( "[VM] ==== OP_GETTABUP key:" + key );
ULDebug.Log( "[VM] ==== OP_GETTABUP val:" + ra );
#endif
env.Base = ci.BaseIndex;
break;
}
case OpCode.OP_GETTABLE:
{
var tbl = env.RB;
var key = env.RKC;
var val = ra;
V_GetTable( tbl, key, val );
#if DEBUG_OP_GETTABLE
ULDebug.Log("[VM] ==== OP_GETTABLE key:"+key.ToString());
ULDebug.Log("[VM] ==== OP_GETTABLE val:"+val.ToString());
#endif
break;
}
case OpCode.OP_SETTABUP:
{
int a = i.GETARG_A();
var key = env.RKB;
var val = env.RKC;
V_SetTable( cl.Upvals[a].V, key, val );
#if DEBUG_OP_SETTABUP
ULDebug.Log( "[VM] ==== OP_SETTABUP key:" + key.Value );
ULDebug.Log( "[VM] ==== OP_SETTABUP val:" + val.Value );
#endif
env.Base = ci.BaseIndex;
break;
}
case OpCode.OP_SETUPVAL:
{
int b = i.GETARG_B();
var uv = cl.Upvals[b];
uv.V.V.SetObj(ref ra.V);
#if DEBUG_OP_SETUPVAL
ULDebug.Log( "[VM] ==== SETUPVAL b:" + b );
ULDebug.Log( "[VM] ==== SETUPVAL ra:" + ra );
#endif
break;
}
case OpCode.OP_SETTABLE:
{
var key = env.RKB;
var val = env.RKC;
#if DEBUG_OP_SETTABLE
ULDebug.Log( "[VM] ==== OP_SETTABLE key:" + key.ToString() );
ULDebug.Log( "[VM] ==== OP_SETTABLE val:" + val.ToString() );
#endif
V_SetTable( ra, key, val );
break;
}
case OpCode.OP_NEWTABLE:
{
int b = i.GETARG_B();
int c = i.GETARG_C();
var tbl = new LuaTable(this);
ra.V.SetHValue(tbl);
if(b > 0 || c > 0)
{ tbl.Resize(b, c); }
break;
}
case OpCode.OP_SELF:
{
// OP_SELF put function referenced by a table on ra
// and the table on ra+1
//
// RB: table
// RKC: key
var ra1 = Stack[ra.Index+1];
var rb = env.RB;
ra1.V.SetObj(ref rb.V);
V_GetTable( rb, env.RKC, ra );
env.Base = ci.BaseIndex;
break;
}
case OpCode.OP_ADD:
{
var rkb = env.RKB;
var rkc = env.RKC;
if(rkb.V.TtIsNumber() && rkc.V.TtIsNumber())
{ ra.V.SetNValue(rkb.V.NValue + rkc.V.NValue); }
else
{ V_Arith(ra, rkb, rkc, TMS.TM_ADD); }
env.Base = ci.BaseIndex;
break;
}
case OpCode.OP_SUB:
{
var rkb = env.RKB;
var rkc = env.RKC;
if(rkb.V.TtIsNumber() && rkc.V.TtIsNumber())
{ ra.V.SetNValue(rkb.V.NValue - rkc.V.NValue); }
else
{ V_Arith(ra, rkb, rkc, TMS.TM_SUB); }
env.Base = ci.BaseIndex;
break;
}
case OpCode.OP_MUL:
{
var rkb = env.RKB;
var rkc = env.RKC;
if(rkb.V.TtIsNumber() && rkc.V.TtIsNumber())
{ ra.V.SetNValue(rkb.V.NValue * rkc.V.NValue); }
else
{ V_Arith(ra, rkb, rkc, TMS.TM_MUL); }
env.Base = ci.BaseIndex;
break;
}
case OpCode.OP_DIV:
{
var rkb = env.RKB;
var rkc = env.RKC;
if(rkb.V.TtIsNumber() && rkc.V.TtIsNumber())
{ ra.V.SetNValue(rkb.V.NValue / rkc.V.NValue); }
else
{ V_Arith(ra, rkb, rkc, TMS.TM_DIV); }
env.Base = ci.BaseIndex;
break;
}
case OpCode.OP_MOD:
{
var rkb = env.RKB;
var rkc = env.RKC;
if(rkb.V.TtIsNumber() && rkc.V.TtIsNumber())
{ ra.V.SetNValue(rkb.V.NValue % rkc.V.NValue); }
else
{ V_Arith(ra, rkb, rkc, TMS.TM_MOD); }
env.Base = ci.BaseIndex;
break;
}
case OpCode.OP_POW:
{
var rkb = env.RKB;
var rkc = env.RKC;
if(rkb.V.TtIsNumber() && rkc.V.TtIsNumber())
{ ra.V.SetNValue(Math.Pow(rkb.V.NValue, rkc.V.NValue)); }
else
{ V_Arith(ra, rkb, rkc, TMS.TM_POW); }
env.Base = ci.BaseIndex;
break;
}
case OpCode.OP_UNM:
{
var rb = env.RB;
if(rb.V.TtIsNumber()) {
ra.V.SetNValue(-rb.V.NValue);
}
else {
V_Arith(ra, rb, rb, TMS.TM_UNM);
env.Base = ci.BaseIndex;
}
break;
}
case OpCode.OP_NOT:
{
var rb = env.RB;
ra.V.SetBValue(IsFalse(ref rb.V));
break;
}
case OpCode.OP_LEN:
{
V_ObjLen( ra, env.RB );
env.Base = ci.BaseIndex;
break;
}
case OpCode.OP_CONCAT:
{
int b = i.GETARG_B();
int c = i.GETARG_C();
Top = Stack[env.Base + c + 1];
V_Concat( c - b + 1 );
env.Base = ci.BaseIndex;
ra = env.RA; // 'V_Concat' may invoke TMs and move the stack
StkId rb = env.RB;
ra.V.SetObj(ref rb.V);
Top = Stack[ci.TopIndex]; // restore top
break;
}
case OpCode.OP_JMP:
{
V_DoJump( ci, i, 0 );
break;
}
case OpCode.OP_EQ:
{
var lhs = env.RKB;
var rhs = env.RKC;
var expectEq = i.GETARG_A() != 0;
#if DEBUG_OP_EQ
ULDebug.Log( "[VM] ==== OP_EQ lhs:" + lhs );
ULDebug.Log( "[VM] ==== OP_EQ rhs:" + rhs );
ULDebug.Log( "[VM] ==== OP_EQ expectEq:" + expectEq );
ULDebug.Log( "[VM] ==== OP_EQ (lhs.V == rhs.V):" + (lhs.V == rhs.V) );
#endif
if((lhs.V == rhs.V) != expectEq)
{
ci.SavedPc.Index += 1; // skip next jump instruction
}
else
{
V_DoNextJump( ci );
}
env.Base = ci.BaseIndex;
break;
}
case OpCode.OP_LT:
{
var expectCmpResult = i.GETARG_A() != 0;
if( V_LessThan( env.RKB, env.RKC ) != expectCmpResult )
ci.SavedPc.Index += 1;
else
V_DoNextJump( ci );
env.Base = ci.BaseIndex;
break;
}
case OpCode.OP_LE:
{
var expectCmpResult = i.GETARG_A() != 0;
if( V_LessEqual( env.RKB, env.RKC ) != expectCmpResult )
ci.SavedPc.Index += 1;
else
V_DoNextJump( ci );
env.Base = ci.BaseIndex;
break;
}
case OpCode.OP_TEST:
{
if((i.GETARG_C() != 0) ?
IsFalse(ref ra.V) : !IsFalse(ref ra.V))
{
ci.SavedPc.Index += 1;
}
else V_DoNextJump( ci );
env.Base = ci.BaseIndex;
break;
}
case OpCode.OP_TESTSET:
{
var rb = env.RB;
if((i.GETARG_C() != 0) ?
IsFalse(ref rb.V) : !IsFalse(ref rb.V))
{
ci.SavedPc.Index += 1;
}
else
{
ra.V.SetObj(ref rb.V);
V_DoNextJump( ci );
}
env.Base = ci.BaseIndex;
break;
}
case OpCode.OP_CALL:
{
int b = i.GETARG_B();
int nresults = i.GETARG_C() - 1;
if( b != 0) { Top = Stack[ra.Index + b]; } // else previous instruction set top
if( D_PreCall( ra, nresults ) ) { // C# function?
if( nresults >= 0 )
Top = Stack[ci.TopIndex];
env.Base = ci.BaseIndex;
}
else { // Lua function
ci = CI;
ci.CallStatus |= CallStatus.CIST_REENTRY;
goto newframe;
}
break;
}
case OpCode.OP_TAILCALL:
{
int b = i.GETARG_B();
if( b != 0) { Top = Stack[ra.Index + b]; } // else previous instruction set top
Utl.Assert( i.GETARG_C() - 1 == LuaDef.LUA_MULTRET );
var called = D_PreCall( ra, LuaDef.LUA_MULTRET );
// C# function ?
if( called )
{
env.Base = ci.BaseIndex;
}
// LuaFunciton
else
{
var nci = CI; // called frame
var oci = BaseCI[CI.Index-1]; // caller frame
StkId nfunc = Stack[nci.FuncIndex];// called function
StkId ofunc = Stack[oci.FuncIndex];// caller function
var ncl = nfunc.V.ClLValue();
var ocl = ofunc.V.ClLValue();
// last stack slot filled by 'precall'
int lim = nci.BaseIndex + ncl.Proto.NumParams;
if(cl.Proto.P.Count > 0)
{ F_Close( Stack[env.Base] ); }
// move new frame into old one
var nindex = nfunc.Index;
var oindex = ofunc.Index;
while(nindex < lim) {
Stack[oindex++].V.SetObj(ref Stack[nindex++].V);
}
oci.BaseIndex = ofunc.Index + (nci.BaseIndex - nfunc.Index);
oci.TopIndex = ofunc.Index + (Top.Index - nfunc.Index);
Top = Stack[oci.TopIndex];
oci.SavedPc = nci.SavedPc;
oci.CallStatus |= CallStatus.CIST_TAIL;
ci = CI = oci;
ocl = ofunc.V.ClLValue();
Utl.Assert(Top.Index == oci.BaseIndex + ocl.Proto.MaxStackSize);
goto newframe;
}
break;
}
case OpCode.OP_RETURN:
{
int b = i.GETARG_B();
if( b != 0 ) { Top = Stack[ra.Index + b - 1]; }
if( cl.Proto.P.Count > 0 ) { F_Close(Stack[env.Base]); }
b = D_PosCall( ra.Index );
if( (ci.CallStatus & CallStatus.CIST_REENTRY) == 0 )
{
return;
}
else
{
ci = CI;
if( b != 0 ) Top = Stack[ci.TopIndex];
goto newframe;
}
}
case OpCode.OP_FORLOOP:
{
var ra1 = Stack[ra.Index + 1];
var ra2 = Stack[ra.Index + 2];
var ra3 = Stack[ra.Index + 3];
var step = ra2.V.NValue;
var idx = ra.V.NValue + step; // increment index
var limit = ra1.V.NValue;
if( (0 < step) ? idx <= limit
: limit <= idx )
{
ci.SavedPc.Index += i.GETARG_sBx(); // jump back
ra.V.SetNValue(idx);// updateinternal index...
ra3.V.SetNValue(idx);// ... and external index
}
break;
}
case OpCode.OP_FORPREP:
{
var init = new TValue();
var limit = new TValue();
var step = new TValue();
var ra1 = Stack[ra.Index + 1];
var ra2 = Stack[ra.Index + 2];
// WHY: why limit is not used ?
if(!V_ToNumber(ra, ref init))
G_RunError("'for' initial value must be a number");
if(!V_ToNumber(ra1, ref limit))
G_RunError("'for' limit must be a number");
if(!V_ToNumber(ra2, ref step))
G_RunError("'for' step must be a number");
ra.V.SetNValue(init.NValue - step.NValue);
ci.SavedPc.Index += i.GETARG_sBx();
break;
}
case OpCode.OP_TFORCALL:
{
int rai = ra.Index;
int cbi = ra.Index + 3;
Stack[cbi+2].V.SetObj(ref Stack[rai+2].V);
Stack[cbi+1].V.SetObj(ref Stack[rai+1].V);
Stack[cbi].V.SetObj(ref Stack[rai].V);
StkId callBase = Stack[cbi];
Top = Stack[cbi+3]; // func. +2 args (state and index)
D_Call( callBase, i.GETARG_C(), true );
env.Base = ci.BaseIndex;
Top = Stack[ci.TopIndex];
i = ci.SavedPc.ValueInc; // go to next instruction
env.I = i;
ra = env.RA;
DumpStack( env.Base );
#if DEBUG_INSTRUCTION
ULDebug.Log( "[VM] ============================================================ OP_TFORCALL Instruction: " + i );
#endif
Utl.Assert( i.GET_OPCODE() == OpCode.OP_TFORLOOP );
goto l_tforloop;
}
case OpCode.OP_TFORLOOP:
l_tforloop:
{
StkId ra1 = Stack[ra.Index + 1];
if(!ra1.V.TtIsNil()) // continue loop?
{
ra.V.SetObj(ref ra1.V);
ci.SavedPc += i.GETARG_sBx();
}
break;
}
// sets the values for a range of array elements in a table(RA)
// RA -> table
// RB -> number of elements to set
// C -> encodes the block number of the table to be initialized
// the values used to initialize the table are located in
// R(A+1), R(A+2) ...
case OpCode.OP_SETLIST:
{
int n = i.GETARG_B();
int c = i.GETARG_C();
if( n == 0 ) n = (Top.Index - ra.Index) - 1;
if( c == 0 )
{
Utl.Assert( ci.SavedPc.Value.GET_OPCODE() == OpCode.OP_EXTRAARG );
c = ci.SavedPc.ValueInc.GETARG_Ax();
}
var tbl = ra.V.HValue();
Utl.Assert( tbl != null );
int last = ((c-1) * LuaDef.LFIELDS_PER_FLUSH) + n;
int rai = ra.Index;
for(; n>0; --n) {
tbl.SetInt(last--, ref Stack[rai+n].V);
}
#if DEBUG_OP_SETLIST
ULDebug.Log( "[VM] ==== OP_SETLIST ci.Top:" + ci.Top.Index );
ULDebug.Log( "[VM] ==== OP_SETLIST Top:" + Top.Index );
#endif
Top = Stack[ci.TopIndex]; // correct top (in case of previous open call)
break;
}
case OpCode.OP_CLOSURE:
{
LuaProto p = cl.Proto.P[ i.GETARG_Bx() ];
V_PushClosure( p, cl.Upvals, env.Base, ra );
#if DEBUG_OP_CLOSURE
ULDebug.Log( "OP_CLOSURE:" + ra.Value );
var racl = ra.Value as LuaLClosure;
if( racl != null )
{
for( int ii=0; ii<racl.Upvals.Count; ++ii )
{
ULDebug.Log( ii + " ) " + racl.Upvals[ii] );
}
}
#endif
break;
}
/// <summary>
/// VARARG implements the vararg operator `...' in expressions.
/// VARARG copies B-1 parameters into a number of registers
/// starting from R(A), padding with nils if there aren't enough values.
/// If B is 0, VARARG copies as many values as it can based on
/// the number of parameters passed.
/// If a fixed number of values is required, B is a value greater than 1.
/// If any number of values is required, B is 0.
/// </summary>
case OpCode.OP_VARARG:
{
int b = i.GETARG_B() - 1;
int n = (env.Base - ci.FuncIndex) - cl.Proto.NumParams - 1;
if( b < 0 ) // B == 0?
{
b = n;
D_CheckStack(n);
ra = env.RA; // previous call may change the stack
Top = Stack[ra.Index + n];
}
var p = ra.Index;
var q = env.Base - n;
for(int j=0; j<b; ++j) {
if(j < n) {
Stack[p++].V.SetObj(ref Stack[q++].V);
}
else {
Stack[p++].V.SetNilValue();
}
}
break;
}
case OpCode.OP_EXTRAARG:
{
Utl.Assert( false );
V_NotImplemented( i );
break;
}
default:
V_NotImplemented( i );
break;
}
}
}
private void Rehash(ref TValue k)
{
int[] nums = new int[MAXBITS+1];
for(int i=0; i<=MAXBITS; ++i) { nums[i] = 0; }
int nasize = NumUseArray(ref nums);
int totaluse = nasize;
totaluse += NumUseHash(ref nums, ref nasize);
nasize += CountInt(ref k, ref nums);
totaluse++;
int na = ComputeSizes(ref nums, ref nasize);
Resize(nasize, totaluse-na);
}
private bool IsPositiveInteger(ref TValue v)
{
return (v.TtIsNumber() && v.NValue > 0 && (v.NValue % 1) == 0 && v.NValue <= int.MaxValue); //fix large number key bug
}
internal string ObjTypeName( ref TValue v )
{
return TypeName((LuaType)v.Tt);
}
uint ILuaAPI.ToUnsignedX( int index, out bool isnum )
{
StkId addr;
if( !Index2Addr( index, out addr ) ) {
isnum = false;
return 0;
}
if( addr.V.TtIsNumber() ) {
isnum = true;
return (uint)addr.V.NValue;
}
if( addr.V.TtIsString() ) {
var n = new TValue();
if(V_ToNumber(addr, ref n)) {
isnum = true;
return (uint)n.NValue;
}
}
isnum = false;
return 0;
}
private bool V_ToString(ref TValue v)
{
if(!v.TtIsNumber()) { return false; }
v.SetSValue(v.NValue.ToString());
return true;
}
private bool V_ToNumber( StkId obj, ref TValue n )
{
if( obj.V.TtIsNumber() ) {
n.SetNValue( obj.V.NValue );
return true;
}
if( obj.V.TtIsString() ) {
double val;
if( O_Str2Decimal(obj.V.SValue(), out val) ) {
n.SetNValue( val );
return true;
}
}
return false;
}
private int CountInt(ref TValue key, ref int[] nums)
{
int k = ArrayIndex(ref key);
if(0 < k && k <= MAXASIZE) {
nums[CeilLog2(k)]++;
return 1;
}
else return 0;
}
private bool EqualObj( ref TValue t1, ref TValue t2, bool rawEq )
{
return (t1.Tt == t2.Tt) && V_EqualObject( ref t1, ref t2, rawEq );
}
private HNode GetHashNode(ref TValue v)
{
if(IsPositiveInteger(ref v)) { return GetHashNode((int)v.NValue); }
if(v.TtIsString()) { return GetHashNode(v.SValue().GetHashCode()); }
return GetHashNode(v.GetHashCode());
}
private bool V_EqualObject( ref TValue t1, ref TValue t2, bool rawEq )
{
Utl.Assert( t1.Tt == t2.Tt );
StkId tm = null;
switch( t1.Tt )
{
case (int)LuaType.LUA_TNIL:
return true;
case (int)LuaType.LUA_TNUMBER:
return t1.NValue == t2.NValue;
case (int)LuaType.LUA_TUINT64:
return t1.UInt64Value == t2.UInt64Value;
case (int)LuaType.LUA_TBOOLEAN:
return t1.BValue() == t2.BValue();
case (int)LuaType.LUA_TSTRING:
return t1.SValue() == t2.SValue();
case (int)LuaType.LUA_TUSERDATA:
{
var ud1 = t1.RawUValue();
var ud2 = t2.RawUValue();
if(ud1.Value == ud2.Value)
return true;
if(rawEq)
return false;
tm = GetEqualTM( ud1.MetaTable, ud2.MetaTable, TMS.TM_EQ );
break;
}
case (int)LuaType.LUA_TTABLE:
{
var tbl1 = t1.HValue();
var tbl2 = t2.HValue();
if( System.Object.ReferenceEquals( tbl1, tbl2 ) )
return true;
if( rawEq )
return false;
tm = GetEqualTM( tbl1.MetaTable, tbl2.MetaTable, TMS.TM_EQ );
break;
}
default:
return t1.OValue == t2.OValue;
}
if( tm == null ) // no TM?
return false;
CallTM(ref tm.V, ref t1, ref t2, Top, true ); // call TM
return !IsFalse(ref Top.V);
}
private StkId NewTableKey(ref TValue k)
{
if(k.TtIsNil()) { L.G_RunError("table index is nil"); }
if(k.TtIsNumber() && System.Double.IsNaN(k.NValue))
{ L.G_RunError("table index is NaN"); }
var mp = GetHashNode(ref k);
// if main position is taken
if(!mp.Val.V.TtIsNil() || mp == DummyNode) {
var n = GetFreePos();
if(n == null) {
Rehash(ref k);
var cell = Get(ref k);
if(cell != TheNilValue) { return cell; }
return NewTableKey(ref k);
}
Utl.Assert(n != DummyNode);
var othern = GetHashNode(ref mp.Key.V);
// is colliding node out of its main position?
if(othern != mp) {
while(othern.Next != mp) { othern = othern.Next; }
othern.Next = n;
n.CopyFrom(mp);
mp.Next = null;
mp.Val.V.SetNilValue();
}
// colliding node is in its own main position
else {
n.Next = mp.Next;
mp.Next = n;
mp = n;
}
}
mp.Key.V.SetObj(ref k);
Utl.Assert(mp.Val.V.TtIsNil());
return mp.Val;
}
public static int NumberK( FuncState fs, double r )
{
var o = new TValue();
o.SetNValue(r);
return AddK( fs, ref o, ref o );
}
public static int StringK( FuncState fs, string s )
{
// Debug.Log(" STRING K >>>> " + s );
var o = new TValue();
o.SetSValue(s);
return AddK( fs, ref o, ref o );
}
private static int NilK( FuncState fs )
{
// // cannot use nil as key;
// // instead use table itself to represent nil
// var k = fs.H;
// var o = new LuaNil();
// return AddK( fs, k, o );
var o = new TValue();
o.SetNilValue();
return AddK( fs, ref o, ref o );
}
private static int BoolK( FuncState fs, bool b )
{
var o = new TValue();
o.SetBValue(b);
return AddK( fs, ref o, ref o );
}
internal void SetObj(ref TValue v)
{
#if DEBUG_DUMMY_TVALUE_MODIFY
CheckLock();
#endif
Tt = v.Tt;
NValue = v.NValue;
UInt64Value = v.UInt64Value;
OValue = v.OValue;
}
public static int AddK( FuncState fs, ref TValue key, ref TValue v )
{
int idx;
if( fs.H.TryGetValue( key, out idx ) )
return idx;
idx = fs.Proto.K.Count;
fs.H.Add( key, idx );
var newItem = new StkId();
newItem.V.SetObj(ref v);
fs.Proto.K.Add(newItem);
// Debug.Log("--------- ADD K ------- " + fs.Proto.K.Count + " line:" + fs.Lexer.LineNumber + " key:" + key);
return idx;
}
private bool IsPositiveInteger(ref TValue v)
{
return(v.TtIsNumber() && v.NValue > 0 && (v.NValue % 1) == 0 && v.NValue <= int.MaxValue); //fix large number key bug
}
