//JAVA TO C# CONVERTER WARNING: Method 'throws' clauses are not available in .NET:
//ORIGINAL LINE: private boolean step() throws LexicalError, SyntaticError, SemanticError
private bool step()
{
if (currentToken == null)
{
int pos = 0;
if (previousToken != null)
{
pos = previousToken.Position + previousToken.Lexeme.Length;
}
currentToken = new Token(Constants_Fields.DOLLAR, "$", pos);
}
int x = ((int?)stack.Pop()).Value;
int a = currentToken.Id;
if (x == Constants_Fields.EPSILON)
{
return false;
}
else if (isTerminal(x))
{
if (x == a)
{
if (stack.Count == 0)
{
return true;
}
else
{
previousToken = currentToken;
currentToken = scanner.nextToken();
return false;
}
}
else
{
throw new SyntaticError(ParserConstants_Fields.PARSER_ERROR[x], currentToken.Position);
}
}
else if (isNonTerminal(x))
{
if (pushProduction(x, a))
{
return false;
}
else
{
throw new SyntaticError(ParserConstants_Fields.PARSER_ERROR[x], currentToken.Position);
}
}
else // isSemanticAction(x)
{
semanticAnalyser.executeAction(x - ParserConstants_Fields.FIRST_SEMANTIC_ACTION, previousToken);
return false;
}
}
//JAVA TO C# CONVERTER WARNING: Method 'throws' clauses are not available in .NET:
//ORIGINAL LINE: public void parse(Lexico scanner, Semantico semanticAnalyser) throws LexicalError, SyntaticError, SemanticError
public virtual void parse(Lexico scanner, Semantico semanticAnalyser)
{
this.scanner = scanner;
this.semanticAnalyser = semanticAnalyser;
stack.Clear();
stack.Push(new int?(Constants_Fields.DOLLAR));
stack.Push(new int?(ParserConstants_Fields.START_SYMBOL));
currentToken = scanner.nextToken();
while (!step())
{
;
}
}
//JAVA TO C# CONVERTER WARNING: Method 'throws' clauses are not available in .NET:
//ORIGINAL LINE: public void executeAction(int action, Token token) throws SemanticError
public virtual void executeAction(int action, Token token)
{
//System.out.println("Ação #" + action + ", Token: " + token);
try
{
switch (action)
{
case 2:
acao02(token);
break;
case 3:
acao03(token);
break;
case 4:
acao04(token);
break;
case 5:
acao05(token);
break;
case 6:
acao06(token);
break;
case 20:
acao20(token);
break;
case 21:
acao21(token);
break;
case 30:
acao30(token);
break;
case 31:
acao31(token);
break;
case 40:
acao40(token);
break;
}
}
catch (Exception e)
{
Console.WriteLine(e.ToString());
Console.Write(e.StackTrace);
}
}
//JAVA TO C# CONVERTER WARNING: Method 'throws' clauses are not available in .NET:
//ORIGINAL LINE: private void acao02(Token token) throws SemanticError
private void acao02(Token token)
{
Elemento elemento = (Elemento) this.pilha.Peek();
elemento.Sinal = Sinal.valueOf(getSinal(token));
}
private int getSinal(Token token)
{
if (token != null && token.Lexeme.Equals("-"))
{
return -1;
}
return 1;
}
//JAVA TO C# CONVERTER WARNING: Method 'throws' clauses are not available in .NET:
//ORIGINAL LINE: private void acao40(Token token) throws Exception
private void acao40(Token token)
{
Elemento elemento = (Elemento) pilha.Peek();
Elemento elementoPotencia = new Elemento();
elemento.Potencia = elementoPotencia;
pilha.Push(elementoPotencia);
}
//JAVA TO C# CONVERTER WARNING: Method 'throws' clauses are not available in .NET:
//ORIGINAL LINE: private void acao31(Token token) throws Exception
private void acao31(Token token)
{
Base obj = (Base)this.pilha.Pop();
if (!(obj is Termo))
{
//JAVA TO C# CONVERTER WARNING: The .NET Type.FullName property will not always yield results identical to the Java Class.getName method:
throw new Exception("Erro. Esperando tipo '" + typeof(Termo).FullName + "'. Encontrato o tipo '" + obj.GetType().FullName + "'.");
}
}
//JAVA TO C# CONVERTER WARNING: Method 'throws' clauses are not available in .NET:
//ORIGINAL LINE: private void acao30(Token token) throws Exception
private void acao30(Token token)
{
Expressao expressao = (Expressao) pilha.Peek();
Termo termo = new Termo();
termo.Sinal = Sinal.valueOf(getSinal(token));
expressao.addTermo(termo);
pilha.Push(termo);
}
private void acao20(Token token)
{
Termo termo = (Termo) this.pilha.Peek();
Elemento elemento = new Elemento();
termo.addElementos(elemento);
this.pilha.Push(elemento);
}
private void acao05(Token token)
{
Elemento elemento = (Elemento) this.pilha.Peek();
Expressao expressao = new Expressao();
expressao.Origem = elemento;
elemento.Expressao = expressao;
this.pilha.Push(expressao);
}
private void acao04(Token token)
{
Elemento elemento = (Elemento) this.pilha.Peek();
elemento.Variavel = token.Lexeme[0];
polinomio.addVariavel(token.Lexeme[0]);
}
private void acao03(Token token)
{
Elemento elemento = (Elemento) this.pilha.Peek();
elemento.Numero = double.Parse(token.Lexeme);
}