public void AssignTo(Token t)
{
t.position = this.position;
t.length = this.length;
t.id = this.id;
t.tokenClass = this.tokenClass;
}
public BaseScanner(BaseParser parser)
{
this.token = new Token(this);
this.history = new IntegerStack();
this.def_stack = new IntegerStack();
this.parser = parser;
NumberFormatInfo currentInfo = NumberFormatInfo.CurrentInfo;
this.DecimalSeparator = currentInfo.NumberDecimalSeparator;
}
public virtual void Call_SCANNER()
{
int block;
bool flag;
this.curr_token = this.scanner.ReadToken();
this.curr_token.atext = this.curr_token.Text;
switch (this.curr_token.tokenClass)
{
case TokenClass.Identifier:
if (!this.IsKeyword(this.curr_token.Text))
{
if (this.REF_SWITCH)
{
this.curr_token.id = this.NewRef(this.curr_token.Text);
this.REF_SWITCH = false;
return;
}
if (!this.DECLARE_SWITCH)
{
this.curr_token.id = this.LookupID(this.curr_token.Text);
if (this.curr_token.id != 0)
{
int level = this.symbol_table[this.curr_token.id].Level;
if (this.symbol_table[level].Kind == MemberKind.Type)
{
if (this.CurrLevel != 0)
{
this.curr_token.id = 0;
}
}
else if (!this.IsDeclaredLocalVar(this.curr_token.id, this.CurrLevel))
{
this.curr_token.id = 0;
}
}
if (this.curr_token.id == 0)
{
this.curr_token.id = this.symbol_table.AppVar();
SymbolRec rec2 = this.symbol_table[this.curr_token.id];
rec2.Name = this.curr_token.Text;
rec2.Level = this.CurrLevel;
rec2.Block = this.CurrBlock;
rec2.Kind = MemberKind.Var;
this.Gen(this.code.OP_EVAL, 0, 0, this.curr_token.id);
}
return;
}
if (!this.DECLARATION_CHECK_SWITCH)
{
goto Label_0234;
}
int iD = this.LookupID(this.curr_token.Text);
block = this.symbol_table[iD].Block;
if (((iD == 0) || (block == 0)) || (this.symbol_table[iD].Level != this.CurrLevel))
{
goto Label_0234;
}
flag = false;
for (int i = this.block_list.Count - 1; i >= 0; i--)
{
int num4 = this.block_list[i];
if ((num4 < block) && (num4 < this.CurrBlock))
{
flag = true;
break;
}
if (num4 == block)
{
break;
}
}
break;
}
if (!this.REF_SWITCH || !this.AllowKeywordsInMemberAccessExpressions)
{
this.curr_token.id = 0;
this.curr_token.tokenClass = TokenClass.Keyword;
return;
}
this.curr_token.id = this.NewRef(this.curr_token.Text);
this.REF_SWITCH = false;
return;
case TokenClass.Keyword:
case TokenClass.BooleanConst:
return;
case TokenClass.IntegerConst:
{
ulong num6;
string text = this.curr_token.Text;
if ((CSLite_System.PosCh('u', text) < 0) && (CSLite_System.PosCh('U', text) < 0))
{
if ((CSLite_System.PosCh('l', text) >= 0) || (CSLite_System.PosCh('L', text) >= 0))
{
if ((CSLite_System.PosCh('u', text) >= 0) || (CSLite_System.PosCh('U', text) >= 0))
{
ulong num8;
if ((CSLite_System.PosCh('x', text) >= 0) || (CSLite_System.PosCh('X', text) >= 0))
{
text = text.Substring(2);
num8 = ulong.Parse(text.Substring(0, text.Length - 2), NumberStyles.AllowHexSpecifier);
}
else
{
num8 = ulong.Parse(text.Substring(0, text.Length - 2));
}
this.curr_token.id = this.symbol_table.AppConst(this.curr_token.Text, num8, StandardType.Ulong);
}
else
{
long num9;
if ((CSLite_System.PosCh('x', text) >= 0) || (CSLite_System.PosCh('X', text) >= 0))
{
text = text.Substring(2);
num9 = long.Parse(text.Substring(0, text.Length - 1), NumberStyles.AllowHexSpecifier);
}
else
{
num9 = long.Parse(text.Substring(0, text.Length - 1));
}
this.curr_token.id = this.symbol_table.AppConst(this.curr_token.Text, num9, StandardType.Long);
}
}
else
{
ulong num10;
if ((CSLite_System.PosCh('x', text) >= 0) || (CSLite_System.PosCh('X', text) >= 0))
{
num10 = ulong.Parse(text.Substring(2), NumberStyles.AllowHexSpecifier);
}
else
{
num10 = ulong.Parse(text);
}
if (num10 <= 0x7fffffffL)
{
this.curr_token.id = this.symbol_table.AppConst(this.curr_token.Text, (int) num10, StandardType.Int);
}
else if (num10 <= 0xffffffffL)
{
this.curr_token.id = this.symbol_table.AppConst(this.curr_token.Text, (uint) num10, StandardType.Uint);
}
else if (num10 <= 0x7fffffffffffffffL)
{
this.curr_token.id = this.symbol_table.AppConst(this.curr_token.Text, (long) num10, StandardType.Long);
}
else
{
this.curr_token.id = this.symbol_table.AppConst(this.curr_token.Text, num10, StandardType.Ulong);
}
}
return;
}
if ((CSLite_System.PosCh('l', text) < 0) && (CSLite_System.PosCh('L', text) < 0))
{
uint num7;
if ((CSLite_System.PosCh('x', text) >= 0) || (CSLite_System.PosCh('X', text) >= 0))
{
text = text.Substring(2);
num7 = uint.Parse(text.Substring(0, text.Length - 1), NumberStyles.AllowHexSpecifier);
}
else
{
num7 = uint.Parse(text.Substring(0, text.Length - 1));
}
this.curr_token.id = this.symbol_table.AppConst(this.curr_token.Text, num7, StandardType.Uint);
return;
}
if ((CSLite_System.PosCh('x', text) < 0) && (CSLite_System.PosCh('X', text) < 0))
{
num6 = ulong.Parse(text.Substring(0, text.Length - 2));
}
else
{
text = text.Substring(2);
num6 = ulong.Parse(text.Substring(0, text.Length - 2), NumberStyles.AllowHexSpecifier);
}
this.curr_token.id = this.symbol_table.AppConst(this.curr_token.Text, num6, StandardType.Ulong);
return;
}
case TokenClass.StringConst:
{
if ((CSLite_System.PosCh('@', this.curr_token.Text) == -1) || !(this.language != "VB"))
{
string str5 = this.scanner.ParseString(this.curr_token.Text);
this.curr_token.id = this.symbol_table.AppConst(this.curr_token.Text, str5.Substring(1, str5.Length - 2), StandardType.String);
return;
}
string str4 = this.scanner.ParseVerbatimString(this.curr_token.Text);
this.curr_token.id = this.symbol_table.AppConst(this.curr_token.Text, str4.Substring(1, str4.Length - 2), StandardType.String);
return;
}
case TokenClass.CharacterConst:
{
char ch = this.scanner.ParseString(this.curr_token.Text)[1];
this.curr_token.id = this.symbol_table.AppCharacterConst(ch);
return;
}
case TokenClass.RealConst:
{
string s = this.curr_token.Text;
if ((CSLite_System.PosCh(this.SingleCharacter, s) < 0) && (CSLite_System.PosCh(this.UpSingleCharacter, s) < 0))
{
if ((CSLite_System.PosCh(this.DoubleCharacter, s) >= 0) || (CSLite_System.PosCh(this.UpDoubleCharacter, s) >= 0))
{
s = s.Substring(0, s.Length - 1);
if (this.scanner.DecimalSeparator == ",")
{
s = s.Replace('.', ',');
}
double num12 = double.Parse(s, NumberStyles.Any);
this.curr_token.id = this.symbol_table.AppConst(this.curr_token.Text, num12, StandardType.Double);
}
else if ((CSLite_System.PosCh(this.DecimalCharacter, s) >= 0) || (CSLite_System.PosCh(this.UpDecimalCharacter, s) >= 0))
{
s = s.Substring(0, s.Length - 1);
if (this.scanner.DecimalSeparator == ",")
{
s = s.Replace('.', ',');
}
decimal num13 = decimal.Parse(s, NumberStyles.Any);
this.curr_token.id = this.symbol_table.AppConst(this.curr_token.Text, num13, StandardType.Decimal);
}
else
{
if (this.scanner.DecimalSeparator == ",")
{
s = s.Replace('.', ',');
}
double num14 = double.Parse(s);
this.curr_token.id = this.symbol_table.AppConst(this.curr_token.Text, num14, StandardType.Double);
}
return;
}
s = s.Substring(0, s.Length - 1);
if (this.scanner.DecimalSeparator == ",")
{
s = s.Replace('.', ',');
}
float num11 = float.Parse(s, NumberStyles.Any);
this.curr_token.id = this.symbol_table.AppConst(this.curr_token.Text, num11, StandardType.Float);
return;
}
default:
return;
}
if (!flag)
{
if (this.CurrBlock == block)
{
this.RaiseErrorEx(false, "CS0128. A local variable named '{0}' is already defined in this scope.", new object[] { this.curr_token.Text });
}
else if (this.CurrBlock > block)
{
this.RaiseErrorEx(false, "CS0136. A local variable named '{0}' cannot be declared in this scope because it would give a different meaning to '{0}', which is already used in a '{1}' scope to denote something else", new object[] { this.curr_token.Text, "parent or current" });
}
else
{
this.RaiseErrorEx(false, "CS0136. A local variable named '{0}' cannot be declared in this scope because it would give a different meaning to '{0}', which is already used in a '{1}' scope to denote something else", new object[] { this.curr_token.Text, "child" });
}
}
Label_0234:
this.curr_token.id = this.symbol_table.AppVar();
SymbolRec rec = this.symbol_table[this.curr_token.id];
rec.Name = this.curr_token.Text;
rec.Level = this.CurrLevel;
rec.Block = this.CurrBlock;
}
public int ReadToken()
{
int num = 0;
do
{
num++;
this.curr_token = this.scanner.ReadToken();
}
while (this.curr_token.tokenClass == TokenClass.Separator);
this.curr_token.atext = this.curr_token.Text;
return num;
}
