| private HasSymbol ( string symName ) : bool | ||
| symName | string | |
| Résultat | bool | |
private Symbol GetClosestSymbol(string symName)
{
if (_methodSymTable.HasSymbol(symName))
{
return(_methodSymTable.GetSymbol(symName));
}
if (_classSymTable.HasSymbol(symName))
{
return(_classSymTable.GetSymbol(symName));
}
return(null);
}
private void ParseLocalVarDecl()
{
Contract.Requires(IsNextTokenLocalVarDecl());
Match(new Token(TokenType.Keyword, "var"));
Token varType = NextToken();
while (true)
{
Token varName = NextToken();
Symbol variable = new Symbol(
varType.Value, varName.Value, SymbolKind.Local, _currentClassName);
//Locals can't clash with parameter names. This will fail when
//adding to the symbol table, but crash explicitly:
if (_methodSymTable.HasSymbol(variable.Name))
{
ThrowCompilationException(
"Variable name '" + variable.Name +
"' conflicts with existing local variable or formal parameter");
}
_methodSymTable.AddSymbol(variable);
_currentSub.Locals.Add(variable);
//NOTE: We don't notify the CG of the local declaration,
//because we include this information when declaring the whole
//subroutine to the CG.
if (LookAheadToken.Value != ",")
{
break;
}
Match(new Token(TokenType.Symbol, ","));
}
Match(new Token(TokenType.Symbol, ";"));
}