public static void return_(Token t, string scope)
{
SAR expression = null;
ShuntYardAll();
if (SAS.Count > 0)
{
expression = SAS.Pop();
if (expression.value == "true" || expression.value == "false")
{
expression.dataType = "bool";
}
}
if (!SymbolTable.return_(expression, scope))
{
SemanticReturnError(expression, scope);
}
if (expression == null)
{
ICode.RTN();
}
else
{
ICode.RETURN(expression.symid);
}
}
private static bool Start()
{
globalOffset = 12;//first line in assembly is a jmp
if (!semanticPass)
{
address = 0;
offset = 0;
memberVariables = new List <string>();
}
while (ClassDeclaration())
{
;
}
if (!Tokens.GetToken().lexeme.Equals("void"))
{
SyntaxError(Tokens.GetToken(), "void return for main");
}
Tokens.NextToken();
if (!Tokens.GetToken().lexeme.Equals("pxi"))
{
SyntaxError(Tokens.GetToken(), "pxi");
}
Tokens.NextToken();
if (!Tokens.GetToken().lexeme.Equals("main"))
{
SyntaxError(Tokens.GetToken(), "main method");
}
string[] data = new string[2];
data[0] = "returnType:void";
data[1] = "accessMod:public";
Symbol symbol = new Symbol("g", ("MAIN"), Tokens.GetToken().lexeme, "main", data);
SymbolTable.Add(symbol);
currentMethodName = "M";
identifierToken = Tokens.GetToken();
currentIdentifier = "";
scope += ".main";
if (semanticPass)
{
ICode.FUNC(symbol.symid);
}
Tokens.NextToken();
if (Tokens.GetToken().lexeme != "(")
{
SyntaxError(Tokens.GetToken(), "(");
}
Tokens.NextToken();
if (Tokens.GetToken().lexeme != ")")
{
SyntaxError(Tokens.GetToken(), ")");
}
Tokens.NextToken();
if (!MethodBody())
{
SyntaxError(Tokens.GetToken(), "method body");
}
return(true);
}
public static void iExist()
{
SAR top_sar = SAS.Pop();
if (top_sar.value == "this")
{
SAS.Push(top_sar);
return;
}
string args = "";
if (top_sar.argList.Count != 0)
{
args = top_sar.argList[0];
for (int i = 1; i < top_sar.argList.Count; ++i)
{
args += "," + top_sar.argList[i];
}
}
top_sar.paramType = args;
string symid = SymbolTable.iExists(top_sar);
if (symid == null || !SymbolTable.ContainsSymid(symid))
{
SemanticError(top_sar);
}
Symbol symbol = SymbolTable.GetValue(symid);
if (symbol.data != null)
{
top_sar.dataType = symbol.data[0].Split(':')[1];
top_sar.dataType.Trim();
}
top_sar.paramType = symbol.parameters;
top_sar.symid = symbol.symid;
if (symbol.kind == "method")
{
ICode.FRAME(symbol.symid, "this");
if (symbol.parameters != null && symbol.parameters != "")
{
for (int i = 0; i < top_sar.argList.Count; ++i)
{
ICode.PUSH(top_sar.argList[i]);
}
}
ICode.CALL(symbol.symid);
Symbol temp = new Symbol("t", "t" + uniqueCounter++, "t_" + symbol.value + "_ReturnValue", "tvar", symbol.data);
SymbolTable.Add(temp);
top_sar.symid = temp.symid;
if (symbol.data[0].Split(':')[1] != "void" && symbol.data[0].Split(':')[1] != "null")
{
ICode.PEEK(temp.symid);
}
}
SAS.Push(top_sar);
}
public static void MathOperator()
{
bool valid = false;
SAR y = SAS.Pop();
SAR x = SAS.Pop();
SAR z = new SAR(SAR.SARtype.Identifier, x.token, x.value, x.scope);
z.dataType = x.dataType;
string op = OS.Peek();
if (x.dataType[0] == '@' && x.argList != null && x.argList.Count != 0)
{
if (x.dataType.Substring(1, x.dataType.Length - 1) == y.dataType)
{
valid = true;
}
}
if (y.dataType[0] == '@' && y.argList != null && y.argList.Count != 0)
{
if (y.dataType.Substring(1, y.dataType.Length - 1) == x.dataType)
{
valid = true;
}
}
if (((x.dataType == y.dataType) && (x.dataType == "int")) || valid)
{
z.symid = "t" + uniqueCounter++;
z.value += "_" + y.value;
z.scope = "t";
string[] data = { "returnType:" + z.dataType, "accessMod:private" };
Symbol temp = new Symbol("t", z.symid, z.value, "tvar", data);
SymbolTable.Add(temp);
if (op == "+")
{
ICode.ADD(x.symid, y.symid, z.symid);
}
else if (op == "-")
{
ICode.SUB(x.symid, y.symid, z.symid);
}
else if (op == "*")
{
ICode.MUL(x.symid, y.symid, z.symid);
}
else if (op == "/")
{
ICode.DIV(y.symid, x.symid, z.symid);
}
SAS.Push(z);
OS.Pop();
OSprecidence.Pop();
return;
}
SemanticOperationError(x, y, OS.Peek());
}
private static bool ClassDeclaration()
{
if (Tokens.GetToken().lexeme != "class")
{
return(false);
}
Tokens.NextToken();
scope = "g" + "." + Tokens.GetToken().lexeme;
if (Tokens.GetToken().type != Token.Type.Identifier)
{
SyntaxError(Tokens.GetToken(), "an identifer");
}
Symbol symbol = new Symbol("g", ("C" + uniqueCounter++), Tokens.GetToken().lexeme, "Class", null);
identifierToken = Tokens.GetToken();
if (semanticPass)
{
SemanticActions.dup(identifierToken, "g");
ICode.StaticInit();
}
Tokens.NextToken();
if (Tokens.GetToken().lexeme != "{")
{
SyntaxError(Tokens.GetToken(), "{");
}
Tokens.NextToken();
classSize = 0;
classMemberOffset = 0;
classTempMemberOffset = 0;
while (ClassMemberDeclaration())
{
}
if (semanticPass)
{
ICode.StaticInitInsertVars();
}
if (Tokens.GetToken().lexeme != "}")
{
SyntaxError(Tokens.GetToken(), "modifier or constructor or a closing brace");
}
else
{
memberVariables.Add(currentClassConstructorSymid);
}
Tokens.NextToken();
symbol.size = classMemberOffset;
SymbolTable.Add(symbol);
scope = "g";
return(true);
}
public static void cin()
{
ShuntYardAll();
SAR exp = SAS.Pop();
string type = exp.dataType;
if ((type[0] == '@') && (exp.argList.Count > 0))
{
type = type.Substring(1, type.Length - 1);
}
if (type != "char" && type != "int")
{
SemanticCoutError(exp);
}
ICode.READ(exp.symid);
}
public static void while_(Token t)
{
if (SAS.Count == 0)
{
SemanticBoolError(t);
}
SAR expression = SAS.Pop();
if (expression.dataType != "bool")
{
SemanticBoolError(t);
}
string ENDWHILE = (ICode.ENDWHILE + ICode.labelCounter++) + " ";
ICode.BF(expression.symid, ENDWHILE);
ICode.StackEndWhile(ENDWHILE);
}
public static void if_(Token t)
{
if (SAS.Count == 0)
{
SemanticBoolError(t);
}
SAR expression = SAS.Pop();
if (expression.dataType != "bool")
{
SemanticBoolError(t);
}
string SKIPIF = (ICode.SKIPIF + ICode.labelCounter++) + " ";
ICode.BF(expression.symid, SKIPIF);
ICode.StackIf(SKIPIF);
}
public static void itoa()
{
SAR exp = SAS.Pop();
if (exp.dataType != "int")
{
SemanticAtoiError(exp);
}
string[] data = { "returnType:char", "accessMod:private" };
Symbol temp = new Symbol("t", "t" + uniqueCounter++, "t" + exp.value, "tvar", data);
SymbolTable.Add(temp);
ICode.MOV(temp.symid, exp.symid);
ICode.CONVERT(temp.symid);
exp.dataType = "char";
exp.symid = temp.symid;
SAS.Push(exp);
}
public static void NewObj()
{
SAR al = SAS.Pop();
SAR type = SAS.Pop();
if (!SymbolTable.NewObj(type, al.argList.ToArray()))
{
SemanticError(type);
}
string functionSymid = type.symid;
type.sarType = SAR.SARtype.Ref;
type.symid = "t" + uniqueCounter++;
string[] data = { "returnType:" + type.dataType, "accessMod:private" };
Symbol instance = new Symbol("t", type.symid, "t" + type.value, "tvar", data);
SymbolTable.Add(instance);
string[] data2 = { "returnType:" + type.dataType, "accessMod:private" };
Symbol peekTemp = new Symbol("t", "t" + uniqueCounter++, "t" + type.value + "ReturnValue", "tvar", data2);
SymbolTable.Add(peekTemp);
Symbol staticInit = SymbolTable.GetValue(("Y" + functionSymid.Substring(1)));
ICode.NEWI(type.size.ToString(), type.symid);
//call constructor
ICode.FRAME(functionSymid, type.symid);
if (al.argList != null && al.argList.Count > 0 && al.argList[0] != "")
{
for (int i = 0; i < al.argList.Count; ++i)
{
ICode.PUSH(al.argList[i]);
}
}
ICode.CALL(functionSymid);
ICode.PEEK(peekTemp.symid);
type.symid = peekTemp.symid;
SAS.Push(type);
}
private static bool MethodBody()
{
if (Tokens.GetToken().lexeme != "{")
{
return(false);
}
if (currentIdentifier != "")
{
scope += "." + currentIdentifier;
}
Tokens.NextToken();
while (VariableDeclaration())
{
;
}
while (Statement())
{
;
}
if (semanticPass)
{
if (currentMethodName[0] == 'X')
{
ICode.RETURN("this");
}
else
{
ICode.RTN();
}
}
if (Tokens.GetToken().lexeme != "}")
{
SyntaxError(Tokens.GetToken(), "} \n~Variable declarations after a statement not allowed~");
}
Tokens.NextToken();
scope = leaveScope(scope);
return(true);
}
public static void rExist()
{
SAR top_sar = SAS.Pop();
SAR LHS = SAS.Peek();
bool this_ = false;
string scope = top_sar.scope;
if (SAS.Count > 0)
{
if (SAS.Peek().value != "this")
{
top_sar.classType = SAS.Pop().dataType;
}
else
{
this_ = true;
string[] temp = top_sar.scope.Split('.');
top_sar.classType = temp[temp.Length - 1];
SAS.Pop();
}
}
else
{
SemanticError(top_sar);
}
Symbol symbol;
if ((symbol = SymbolTable.rExists(top_sar)) == null)
{
SemanticError(top_sar);
}
if (symbol.data != null) //not a class
{
if ((symbol.data[symbol.data.Length - 1] == "accessMod:public") || this_) //member is public
{
top_sar.dataType = symbol.data[0].Split(':')[1];
top_sar.dataType.Trim();
top_sar.sarType = SAR.SARtype.Ref;
top_sar.symid = "t" + uniqueCounter++;
top_sar.scope = "t";
string[] data = { "returnType:" + top_sar.dataType, "accessMod:private" };
if (symbol.kind == "method")
{
ICode.FRAME(symbol.symid, LHS.symid);
if (symbol.parameters != null && symbol.parameters != "")
{
for (int i = 0; i < top_sar.argList.Count; ++i)
{
ICode.PUSH(top_sar.argList[i]);
}
}
ICode.CALL(symbol.symid);
ICode.PEEK(top_sar.symid);
}
else
{
top_sar.symid += "r";
if (LHS.value == "this")
{
LHS.symid = "this";
}
ICode.REF(LHS.symid, symbol.symid, top_sar.symid);
}
Symbol temp = new Symbol(top_sar.scope, top_sar.symid, "t" + top_sar.value, "tvar", data);
SymbolTable.Add(temp);
SAS.Push(top_sar);
return;
}
else
{
SemanticPrivateError(top_sar);
}
}
/*if (SymbolTable.ContainsValue(scope + "." + top_sar.value))
* {
* Symbol symbol = SymbolTable.GetValue(SymbolTable.GetSymid(scope + "." + top_sar.value));
* if (symbol.data != null) //not a class
* {
* if (symbol.data[symbol.data.Length - 1]=="accessMod:public") //member is public
* {
* top_sar.dataType = symbol.data[0].Split(':')[1];
* top_sar.dataType.Trim();
* if (symbol.data.Length == 3)
* {
* top_sar.paramType = symbol.data[1];
* }
* top_sar.sarType = SAR.SARtype.Ref;
* SAS.Push(top_sar);
* return;
* }
* }
* }*/
SemanticError(top_sar);
}
private static bool Statement()
{
if (Tokens.GetToken().lexeme == "{")
{
Tokens.NextToken();
while (Statement())
{
;
}
if (Tokens.GetToken().lexeme != "}")
{
SyntaxError(Tokens.GetToken(), "}");
}
Tokens.NextToken();
return(true);
}
if (Tokens.GetToken().lexeme == "if")
{
Tokens.NextToken();
if (Tokens.GetToken().lexeme != "(")
{
SyntaxError(Tokens.GetToken(), "(");
}
if (semanticPass)
{
SemanticActions.oPush(Tokens.GetToken());
}
Tokens.NextToken();
if (!Expression())
{
SyntaxError(Tokens.GetToken(), "an expression");
}
if (Tokens.GetToken().lexeme != ")")
{
SyntaxError(Tokens.GetToken(), ")");
}
if (semanticPass)
{
SemanticActions.ShuntYardAll();
SemanticActions.if_(Tokens.GetToken());
}
Tokens.NextToken();
if (!Statement())
{
SyntaxError(Tokens.GetToken(), "a statement");
}
if (Tokens.GetToken().lexeme == "else")
{
Tokens.NextToken();
if (semanticPass)
{
string SKIPELSE = ICode.SKIPELSE + ICode.labelCounter++ + " ";
ICode.JMP(SKIPELSE);
ICode.StackElse(SKIPELSE);
ICode.Print(ICode.StackIf());
}
if (!Statement())
{
SyntaxError(Tokens.GetToken(), "a statement");
}
if (semanticPass)
{
ICode.Print(ICode.StackElse());
}
}
else if (semanticPass)
{
ICode.Print(ICode.StackIf());
}
return(true);
}
if (Tokens.GetToken().lexeme == "while")
{
if (semanticPass)
{
string BEGIN = ICode.BEGIN + ICode.labelCounter++ + " ";
ICode.Print(BEGIN);
ICode.StackWhile(BEGIN);
}
Tokens.NextToken();
if (Tokens.GetToken().lexeme != "(")
{
SyntaxError(Tokens.GetToken(), "(");
}
if (semanticPass)
{
SemanticActions.oPush(Tokens.GetToken());
}
Tokens.NextToken();
if (!Expression())
{
SyntaxError(Tokens.GetToken(), "an expression");
}
if (Tokens.GetToken().lexeme != ")")
{
SyntaxError(Tokens.GetToken(), ")");
}
if (semanticPass)
{
SemanticActions.ShuntYardAll();
SemanticActions.while_(Tokens.GetToken());
}
Tokens.NextToken();
if (!Statement())
{
SyntaxError(Tokens.GetToken(), "a statement");
}
if (semanticPass)
{
string BEGIN = ICode.StackWhile();
ICode.JMP(BEGIN);
string ENDWHILE = ICode.StackEndWhile();
ICode.Print(ENDWHILE);
}
return(true);
}
if (Tokens.GetToken().lexeme == "return")
{
Tokens.NextToken();
Expression();
if (Tokens.GetToken().lexeme != ";")
{
SyntaxError(Tokens.GetToken(), ";");
}
if (semanticPass)
{
SemanticActions.return_(Tokens.GetToken(), scope);
}
Tokens.NextToken();
return(true);
}
if (Tokens.GetToken().lexeme == "cout")
{
Tokens.NextToken();
if (Tokens.GetToken().lexeme != "<<")
{
SyntaxError(Tokens.GetToken(), "<<");
}
Tokens.NextToken();
if (!Expression())
{
SyntaxError(Tokens.GetToken(), "an expression");
}
if (Tokens.GetToken().lexeme != ";")
{
SyntaxError(Tokens.GetToken(), ";");
}
if (semanticPass)
{
SemanticActions.cout();
}
Tokens.NextToken();
return(true);
}
if (Tokens.GetToken().lexeme == "cin")
{
Tokens.NextToken();
if (Tokens.GetToken().lexeme != ">>")
{
SyntaxError(Tokens.GetToken(), ">>");
}
Tokens.NextToken();
if (!Expression())
{
SyntaxError(Tokens.GetToken(), "an expression");
}
if (Tokens.GetToken().lexeme != ";")
{
SyntaxError(Tokens.GetToken(), ";");
}
if (semanticPass)
{
SemanticActions.cin();
}
Tokens.NextToken();
return(true);
}
if (Tokens.GetToken().lexeme == "spawn")
{
Tokens.NextToken();
if (!Expression())
{
SyntaxError(Tokens.GetToken(), "an expression");
}
if (Tokens.GetToken().lexeme != "set")
{
SyntaxError(Tokens.GetToken(), "set");
}
Tokens.NextToken();
if (Tokens.GetToken().type != Token.Type.Identifier)
{
SyntaxError(Tokens.GetToken(), "an identifier");
}
if (semanticPass)
{
SemanticActions.iPush(Tokens.GetToken(), scope);
}
Tokens.NextToken();
if (Tokens.GetToken().lexeme != ";")
{
SyntaxError(Tokens.GetToken(), ";");
}
if (semanticPass)
{
SemanticActions.spawn();
}
Tokens.NextToken();
return(true);
}
if (Tokens.GetToken().lexeme == "block")
{
Tokens.NextToken();
if (Tokens.GetToken().lexeme != ";")
{
SyntaxError(Tokens.GetToken(), ";");
}
if (semanticPass)
{
SemanticActions.block();
}
Tokens.NextToken();
return(true);
}
if (Tokens.GetToken().lexeme == "lock")
{
Tokens.NextToken();
if (Tokens.GetToken().type != Token.Type.Identifier)
{
SyntaxError(Tokens.GetToken(), "an identifier");
}
if (semanticPass)
{
SemanticActions.iPush(Tokens.GetToken(), scope);
}
Tokens.NextToken();
if (Tokens.GetToken().lexeme != ";")
{
SyntaxError(Tokens.GetToken(), ";");
}
if (semanticPass)
{
SemanticActions.lock_();
}
Tokens.NextToken();
return(true);
}
if (Tokens.GetToken().lexeme == "release")
{
Tokens.NextToken();
if (Tokens.GetToken().type != Token.Type.Identifier)
{
SyntaxError(Tokens.GetToken(), "an identifier");
}
if (semanticPass)
{
SemanticActions.iPush(Tokens.GetToken(), scope);
}
Tokens.NextToken();
if (Tokens.GetToken().lexeme != ";")
{
SyntaxError(Tokens.GetToken(), ";");
}
if (semanticPass)
{
SemanticActions.release();
}
Tokens.NextToken();
return(true);
}
if (Expression())
{
if (Tokens.GetToken().lexeme != ";")
{
SyntaxError(Tokens.GetToken(), ";");
}
if (semanticPass)
{
SemanticActions.EOE();
}
Tokens.NextToken();
return(true);
}
return(false);
}
private static bool ConstructorDeclaration()
{
if (Tokens.GetToken().type != Token.Type.Identifier)
{
return(false);
}
currentIdentifier = Tokens.GetToken().lexeme;
identifierToken = Tokens.GetToken();
if (semanticPass)
{
SemanticActions.dup(identifierToken, scope);
SemanticActions.CD(identifierToken, scope);
}
Tokens.NextToken();
if (Tokens.GetToken().lexeme != "(")
{
SyntaxError(Tokens.GetToken(), "(");
}
Tokens.NextToken();
offset = 0;
sizeParameters = 0;
ParameterList();
string[] data = new string[2];
data[0] = "returnType:" + currentIdentifier;
data[1] = "accessMod:" + accessMod;
Symbol symbol = new Symbol(scope, ("X" + uniqueCounter++), currentIdentifier, "constructor", data);
currentMethodName = symbol.symid;
if (!semanticPass)
{
currentClassConstructorSymid = symbol.symid;
}
data[0] = "returnType:" + currentIdentifier;
data[1] = "accessMod:" + accessMod;
Symbol symbol2 = new Symbol(scope, ("Y" + symbol.symid.Substring(1)), currentIdentifier + "StaticInit", "Init", data);
if (semanticPass)
{
ICode.RETURN("this");
ICode.FUNC(symbol.symid);
ICode.FRAME(symbol2.symid, "this");
ICode.CALL(symbol2.symid);
}
symbol.parameters = parameters;
if (Tokens.GetToken().lexeme != ")")
{
SyntaxError(Tokens.GetToken(), ")");
}
Tokens.NextToken();
if (!MethodBody())
{
SyntaxError(Tokens.GetToken(), "method body");
}
symbol.size = methodSize;
symbol2.size = 0;
SymbolTable.Add(symbol);
SymbolTable.Add(symbol2);
offset = 0;
methodSize = 0;
return(true);
}
private static bool FieldDeclaration()
{
if (Tokens.GetToken().lexeme == "(")
{
Tokens.NextToken();
parameters = "";
string methodType = currentType;
offset = 0;
sizeParameters = 0;
ParameterList();
methodSize = 0;
string[] data = new string[2];
data[0] = "returnType:" + methodType;
data[1] = "accessMod:" + accessMod;
Symbol symbol = new Symbol(scope, ("M" + uniqueCounter++), currentIdentifier, "method", data);
symbol.parameters = parameters;
currentMethodName = "M";
if (semanticPass)
{
ICode.FUNC(symbol.symid);
}
if (Tokens.GetToken().lexeme != ")")
{
SyntaxError(Tokens.GetToken(), ")");
}
Tokens.NextToken();
if (!MethodBody())
{
SyntaxError(Tokens.GetToken(), "method body");
}
symbol.size = methodSize;
SymbolTable.Add(symbol);
offset = 0;
methodSize = 0;
return(true);
}
else
{
bool flag = false;
if (Tokens.GetToken().lexeme == "[")
{
flag = true;
if (Tokens.PeekToken().lexeme != "]")
{
return(false);
}
Tokens.NextToken();
Tokens.NextToken();
}
if (semanticPass)
{
SemanticActions.vPush(identifierSymbol, identifierToken, scope);
}
if (Tokens.GetToken().lexeme == "=")
{
flag = true;
if (semanticPass)
{
SemanticActions.oPush(Tokens.GetToken());
}
Tokens.NextToken();
if (!AssignmentExpression())
{
return(false);
}
}
if ((Tokens.GetToken().lexeme == ";"))
{
if (semanticPass)
{
SemanticActions.EOE();
}
Tokens.NextToken();
return(true);
}
if (flag)
{
SyntaxError(Tokens.GetToken(), ";");
}
}
return(false);
}
public static void BoolOperator()
{
SAR y = SAS.Pop();
SAR x = SAS.Pop();
SAR z = new SAR(SAR.SARtype.Identifier, x.token, x.value, x.scope);
string op = OS.Peek();
if (op == "==" || op == "!=")
{
if ((x.dataType != y.dataType) && (y.dataType != "null"))
{
SemanticOperationError(x, y, OS.Pop());
}
}
else if ((x.dataType != y.dataType))
{
/*if(x.dataType == "int" || x.dataType == "char")
* {
*
* }
* else
* {*/
SemanticOperationError(x, y, OS.Pop());
// }
}
z.symid = "t" + uniqueCounter++;
z.value += "_" + y.value;
z.scope = "t";
z.dataType = "bool";
string[] data = { "returnType:" + z.dataType, "accessMod:private" };
Symbol temp = new Symbol("t", z.symid, z.value, "tvar", data);
SymbolTable.Add(temp);
if (op == "<")
{
ICode.LT(x.symid, y.symid, z.symid);
}
else if (op == ">")
{
ICode.GT(x.symid, y.symid, z.symid);
}
else if (op == "!=")
{
ICode.NE(x.symid, y.symid, z.symid);
}
else if (op == "==")
{
ICode.EQ(x.symid, y.symid, z.symid);
}
else if (op == "<=")
{
ICode.LE(x.symid, y.symid, z.symid);
}
else if (op == ">=")
{
ICode.GE(x.symid, y.symid, z.symid);
}
SAS.Push(z);
OS.Pop();
OSprecidence.Pop();
return;
}
public static string iExists(SAR s)
{
Symbol symbol;
Symbol check;
Symbol defined;
bool flag = false;
string tempScope = "";
string scope = s.scope;
string parameterTypes = "";
int definedParamCount;
while (scope != "")
{
if (ScopeTable.ContainsKey(scope))
{
for (int i = 0; i < ScopeTable[scope].Count; ++i)
{
symbol = ScopeTable[scope][i];
if (symbol.value.Equals(s.value) && symbol.symid[1] != 'A')
{
tempScope = scope;
if (symbol.parameters.Split(',')[0] != "")
{
definedParamCount = symbol.parameters.Split(',').Length;
}
else
{
definedParamCount = 0;
}
if (s.dataType == "@")
{
string type = symbol.data[0].Split(':')[1];
if (type.Length < 1 || type[0] != '@')
{
continue;
}
if (type[0] == '@')
{
type = type.Substring(1, type.Length - 1);
}
if (s.value == "i")
{
Console.Write(" ");
}
string symid = "tArr" + SemanticActions.uniqueCounter++;
string[] data = new string[2];
data[0] = "dataType:" + type;
data[1] = "accessMod:public";
Symbol temp = new Symbol("t", symid, "t" + s.value, "tvar", data);
Add(temp);
s.dataType = data[0];
s.symid = symid;
s.scope = "t";
ICode.AEF(symbol.symid, s.argList[0], temp.symid);
return(s.symid);
}
else if (s.argList.Count != definedParamCount)
{
for (int j = 0; j < s.argList.Count; ++j)
{
parameterTypes += symbolTable[s.argList[s.argList.Count - j - 1]].data[0].Split(':')[1] + ",";
}
continue;
}
else
{
parameterTypes = "";
for (int j = 0; j < s.argList.Count; ++j)
{
check = symbolTable[s.argList[j]];//args are in reverse order
defined = symbolTable[symbol.parameters.Split(',')[j]];
if (check.data[0].Split(':')[1] != defined.data[0].Split(':')[1])
{
flag = true;
}
parameterTypes += check.data[0].Split(':')[1] + ",";
}
if (flag)
{
continue;
}
}
s.symid = ScopeTable[scope][i].symid;
s.scope = scope;
return(s.symid);
}
}
}
if (!scope.Contains("."))
{
if (parameterTypes != null && parameterTypes.Length > 0)
{
s.value += "(" + parameterTypes.Substring(0, parameterTypes.Length - 1) + ")";
}
if (tempScope != "")
{
s.scope = tempScope;
}
return(null);
}
string[] scopes = scope.Split('.');
scope = scopes[0];
for (int i = 1; i < scopes.Length - 1; ++i)
{
scope += "." + scopes[i];
}
}
s.value += "(" + parameterTypes.Substring(0, parameterTypes.Length - 1) + ")";
s.scope = tempScope;
return(null);
}
static int Main(string[] args)
{
bool printFile = false;
bool printConsole = false;
string fileName;
string outputFileName = null;
if (args.Length == 0)
{
Console.Write("Enter filename with file extension pxi: ");
return(0);
}
else
{
if (args.Length > 1)
{
if (args.Length > 2)
{
outputFileName = args[2];
}
if (args[1].ToString().ToLower() == "f")
{
printFile = true;
}
if (args[1].ToString().ToLower() == "c")
{
printConsole = true;
}
}
if (args[0] == "help")
{
Console.WriteLine("---- f for ouput tokens to file, c for display tokens on console ----");
return(0);
}
fileName = args[0];
}
if (!fileName.Contains(".pxi"))
{
if (fileName.Contains("."))
{
Console.WriteLine("Requires file with .pxi extension");
return(0);
}
fileName = fileName + ".pxi";
}
if (!File.Exists(fileName))
{
Console.WriteLine("{0} not found.", fileName);
return(0);
}
StreamReader sr = null;
try
{
sr = new StreamReader(fileName);
}
catch (Exception)
{
Console.WriteLine("could not open file {0}", fileName);
return(0);
}
Scanner.ScanFile(ref sr);
if (printFile)
{
Scanner.PrintTokensFile(outputFileName);
}
else if (printConsole)
{
Scanner.PrintTokensConsole();
}
sr.DiscardBufferedData();
sr.BaseStream.Seek(0, SeekOrigin.Begin);
sr.BaseStream.Position = 0;
Scanner.ScanFile(ref sr);
Parser.ParseTokens();
sr.DiscardBufferedData();
sr.BaseStream.Seek(0, SeekOrigin.Begin);
sr.BaseStream.Position = 0;
ICode.SetFilename(fileName);
Scanner.ScanFile(ref sr); //semantic pass
Parser.ParseTokens();
ICode.Flush();
//SymbolTable.printAll();
return(0);
}
