public static VarCompare GetInstance()
{
if (_inst == null)
{
_inst = new VarCompare();
}
return(_inst);
}
public Varible invoke(GcMachine m, int numParams)
{
if (numParams < 2 || m.GetLocalByID(1).type != VarType.TYPE_TABLE ||
m.GetLocalByID(2).type != VarType.TYPE_TABLE)
{
throw new RuntimeException("Invaild argument");
}
Varible newTable = new Varible(new Dictionary <Varible, Varible>());
var table = newTable.table;
var table2 = m.GetLocalByID(2).table;
foreach (var kvp in m.GetLocalByID(1).table)
{
if (table2.ContainsKey(kvp.Key) && VarCompare.GetInstance().Equals(kvp.Value, table2[kvp.Key]))
{
table.Add(kvp.Key, kvp.Value);
}
}
return(newTable);
}
static public void OpenLibrary(GcMachine m)
{
Varible v = new Varible(new Dictionary <Varible, Varible>(VarCompare.GetInstance()));
v.table[new Varible("concat")] = new Varible(new string_concat());
v.table[new Varible("compare")] = new Varible(new string_compare());
v.table[new Varible("contain")] = new Varible(new string_contain());
v.table[new Varible("match")] = new Varible(new string_match());
v.table[new Varible("sub")] = new Varible(new string_sub());
//String library
m.SetGlobal("String", v);
v = new Varible(new Dictionary <Varible, Varible>(VarCompare.GetInstance()));
//Math library
v.table[new Varible("sin")] = new Varible(new math_sin());
v.table[new Varible("cos")] = new Varible(new math_cos());
v.table[new Varible("abs")] = new Varible(new math_abs());
v.table[new Varible("ceiling")] = new Varible(new math_ceiling());
v.table[new Varible("floor")] = new Varible(new math_floor());
v.table[new Varible("exp")] = new Varible(new math_exp());
v.table[new Varible("pow")] = new Varible(new math_pow());
v.table[new Varible("log")] = new Varible(new math_log());
v.table[new Varible("random")] = new Varible(new math_random());
m.SetGlobal("Math", v);
v = new Varible(new Dictionary <Varible, Varible>(VarCompare.GetInstance()));
//Table library
v.table[new Varible("copy")] = new Varible(new table_copy());
v.table[new Varible("contain_key")] = new Varible(new table_contain_key());
v.table[new Varible("contain_value")] = new Varible(new table_contain_value());
v.table[new Varible("intersect")] = new Varible(new table_intersect());
v.table[new Varible("union")] = new Varible(new table_union());
v.table[new Varible("insert")] = new Varible(new table_insert());
v.table[new Varible("remove")] = new Varible(new table_remove());
m.SetGlobal("Table", v);
}
private void executeInner()
{
Varible t;
Varible __parent = new Varible("__parent");
int n;
double num;
inSystemFunction = null;
int lastLine = symbol_getLineByCode(pc);
int currFunc = CurrentFunction;
short opCode = Convert.ToInt16(code[pc].opCode & 0x7F);
while (pc < codeLength)
{
switch (opCode)
{
case OpCode.PUSHNUM:
userStack[userStackTop].num = code[pc].num;
userStack[userStackTop].type = VarType.TYPE_NUMBER;
userStackTop++;
break;
case OpCode.POP:
userStackTop -= code[pc].pointer;
break;
case OpCode.GETLOCAL:
userStack[userStackTop] = userStack[userStackBase + code[pc].pointer - 1];
userStackTop++;
break;
case OpCode.SETLOCAL:
userStack[userStackBase + code[pc].pointer - 1] = userStack[userStackTop - 1];
//userStackTop --;
break;
case OpCode.GETGLOBAL:
userStack[userStackTop] = GetGlobal(stringMap[code[pc].pointer]);
userStackTop++;
break;
case OpCode.SETGLOBAL:
SetGlobal(stringMap[code[pc].pointer], userStack[userStackTop - 1]);
//userStackTop --;
break;
case OpCode.CALL:
systemStack[systemStackTop] = pc;
systemStackTop++;
systemStack[systemStackTop] = userStackBase;
systemStackTop++;
systemStack[systemStackTop] = code[pc].pointer;
systemStackTop++;
t = userStack[--userStackTop]; // new_address
userStackBase = userStackTop - code[pc].pointer;
if (t.type == VarType.TYPE_FUNCTION)
{
pc = t.pointer - 1;
//opCode = code[pc].opCode;
break;
}
else if (t.type == VarType.TYPE_C_FUNCTION)
{
//C function
inSystemFunction = t.func;
userStack[userStackTop] = t.func.invoke(this, code[pc].pointer);
userStackTop++;
inSystemFunction = null;
goto retInstruction;
// Fall through to RET
}
else
{
userStackBase = systemStack[systemStackTop - 2];
systemStackTop -= 3;
throw new RuntimeException("Unable to call " + t.num.ToString());
}
case OpCode.RET:
retInstruction:
if (systemStackTop == 0)
{
return;
}
t = userStack[userStackTop - 1]; //retval
userStackTop = userStackBase;
systemStackTop--; //pop num param
userStackBase = systemStack[--systemStackTop];
pc = systemStack[--systemStackTop];
opCode = code[pc].opCode;
userStack[userStackTop++] = t;
if (systemStackTop < stepOutStackFrame &&
(flags == MachineFlags.MACHINE_FLAGS_STEP_OUT ||
flags == MachineFlags.MACHINE_FLAGS_STEP_OVER ||
flags == MachineFlags.MACHINE_FLAGS_STEP_IN)
)
{
++pc;
throw new BreakpointException();
}
break;
case OpCode.CMP:
if (userStack[userStackTop - 1].type != VarType.TYPE_NUMBER || userStack[userStackTop - 2].type != VarType.TYPE_NUMBER)
{
throw new RuntimeException("Unable to comapre " + VarType.getTypeString(userStack[userStackTop - 1].type) + " and "
+ VarType.getTypeString(userStack[userStackTop - 2].type));
}
num = userStack[userStackTop - 2].num - userStack[userStackTop - 1].num;
if (Math.Abs(num) < 1e-10)
{
cmpState = (code[pc].pointer & CompareMode.COMPARE_EQUAL) != 0;
}
else
{
if (num < 0)
{
cmpState = (code[pc].pointer & CompareMode.COMPARE_LESS) != 0;
}
else
{
cmpState = (code[pc].pointer & CompareMode.COMPARE_GREATER) != 0;
}
}
--userStackTop;
if (cmpState)
{
userStack[userStackTop - 1].num = 1.0;
}
else
{
userStack[userStackTop - 1].num = 0.0;
}
break;
case OpCode.JUMP:
cmpState = !(Math.Abs(userStack[--userStackTop].num) < 1e-10);
if (!cmpState)
{
break;
}
else
{
pc += (code[pc].pointer - 1);
//opCode = code[pc].opCode;
break;
}
case OpCode.JUMPA:
pc += (code[pc].pointer - 1);
//opCode = code[pc].opCode;
break;
case OpCode.ADJLOCAL:
n = userStackTop - userStackBase;
while (n > code[pc].pointer)
{
--userStackTop;
--n;
}
while (n < code[pc].pointer)
{
userStack[userStackTop] = new Varible(0.0);
++userStackTop;
++n;
}
break;
case OpCode.NOT:
if (Math.Abs(userStack[userStackTop - 1].num) < 1e-10)
{
userStack[userStackTop - 1].num = 1;
}
else
{
userStack[userStackTop - 1].num = 0;
}
break;
case OpCode.ARITH:
if (code[pc].pointer == OpCode.ARITH_ADD && userStack[userStackTop - 1].type == VarType.TYPE_STRING &&
userStack[userStackTop - 2].type == VarType.TYPE_STRING)
{
userStack[userStackTop - 2].str = userStack[userStackTop - 2].str + userStack[userStackTop - 1].str;
userStackTop--;
break;
}
if (userStack[userStackTop - 1].type != VarType.TYPE_NUMBER || userStack[userStackTop - 2].type != VarType.TYPE_NUMBER)
{
throw new RuntimeException("Unable to perform arithmatic on " + VarType.getTypeString(userStack[userStackTop - 1].type) + " and "
+ VarType.getTypeString(userStack[userStackTop - 2].type));
}
switch (code[pc].pointer)
{
case OpCode.ARITH_ADD:
num = userStack[userStackTop - 2].num + userStack[userStackTop - 1].num;
break;
case OpCode.ARITH_SUB:
num = userStack[userStackTop - 2].num - userStack[userStackTop - 1].num;
break;
case OpCode.ARITH_MUL:
num = userStack[userStackTop - 2].num * userStack[userStackTop - 1].num;
break;
case OpCode.ARITH_DIV:
num = userStack[userStackTop - 2].num / userStack[userStackTop - 1].num;
break;
default:
throw new RuntimeException("Unknown arith type " + code[pc].pointer.ToString());
}
userStackTop--;
userStack[userStackTop - 1].num = num;
break;
case OpCode.PUSHSTRING:
userStack[userStackTop].str = GetString(code[pc].pointer);
userStack[userStackTop].type = VarType.TYPE_STRING;
userStackTop++;
break;
case OpCode.TABLEOP:
switch (code[pc].pointer)
{
case OpCode.TABLE_NEW:
userStack[userStackTop].table = new Dictionary <Varible, Varible>(VarCompare.GetInstance());
userStack[userStackTop].type = VarType.TYPE_TABLE;
userStackTop++;
break;
case OpCode.TABLE_GETITEM:
Dictionary <Varible, Varible> table;
int i = 0;
if (userStack[userStackTop - 2].type != VarType.TYPE_TABLE)
{
if (userStack[userStackTop - 2].type == VarType.TYPE_STRING)
{
if (IsGlobalExists("String") && GetGlobal("String").type == VarType.TYPE_TABLE)
{
table = GetGlobal("String").table;
}
else
{
throw new RuntimeException("Not a table");
}
}
else
{
throw new RuntimeException("Not a table");
}
}
else
{
table = userStack[userStackTop - 2].table;
}
while (!table.ContainsKey(userStack[userStackTop - 1]) && table.ContainsKey(__parent) &&
table[__parent].type == VarType.TYPE_TABLE)
{
table = table[__parent].table;
++i;
if (i > 256)
{
throw new RuntimeException("Max levels of __parent exceeded");
}
}
if (!table.ContainsKey(userStack[userStackTop - 1]) && IsGlobalExists("Table") &&
GetGlobal("Table").type == VarType.TYPE_TABLE)
{
table = GetGlobal("Table").table;
}
if (!table.ContainsKey(userStack[userStackTop - 1]))
{
throw new RuntimeException("Key do not exist");
}
userStack[userStackTop - 2] = table[userStack[userStackTop - 1]];
userStackTop--;
break;
case OpCode.TABLE_SETITEM:
if (userStack[userStackTop - 2].type != VarType.TYPE_TABLE)
{
throw new RuntimeException("Not a table");
}
userStack[userStackTop - 2].table[userStack[userStackTop - 1]] = userStack[userStackTop - 3];
userStackTop -= 2; //3
break;
case OpCode.TABLE_SETITEM_INIT:
if (userStack[userStackTop - 3].type != VarType.TYPE_TABLE)
{
throw new RuntimeException("Not a table");
}
userStack[userStackTop - 3].table[userStack[userStackTop - 1]] = userStack[userStackTop - 2];
userStackTop -= 1; //
break;
default:
throw new RuntimeException("Unknown table op");
}
break;
case OpCode.PSEUDO_BREAK:
case OpCode.PSEUDO_CONTINUE:
throw new RuntimeException("Unexpected break or continue outside while loop");
default:
if ((code[pc].opCode & 0x80) != 0)
{
throw new BreakpointException();
}
else
{
throw new RuntimeException("Unknown instruction");
}
}
++pc;
opCode = code[pc].opCode;
if (wantPause)
{
throw new BreakpointException();
}
if (flags == MachineFlags.MACHINE_FLAGS_STEP_IN)
{
if (lastLine != symbol_getLineByCode(pc))
{
throw new BreakpointException();
}
}
if (flags == MachineFlags.MACHINE_FLAGS_STEP_OVER)
{
if (systemStackTop == stepOutStackFrame && CurrentFunction == currFunc &&
lastLine != symbol_getLineByCode(pc))
{
throw new BreakpointException();
}
}
}
return;
}