public bool Parse(Lexer lexer, Token token, Attributes attributes)
{
var successfullyParsed = true;
try
{
var environments = new Environments();
environments.Push(new Environment()
{
IsGlobal = true
});
attributes.AddAttribute(environments, "ENVS");
successfullyParsed &= ParserFactory.GetEnvironmentParser().Parse(lexer, token, attributes);
ValidateToken(lexer.GetCurrentToken(), TokenType.EndOfFile);
}
catch (Exception ex)
{
successfullyParsed = false;
Logger(ex.Message);
}
return(successfullyParsed);
}
public bool Parse(Lexer lexer, Token token, Attributes attributes)
{
var successfullyParsed = true;
var environments = ((Environments)attributes["ENVS"]);
var procedure = ParseProcedureDeclaration(lexer, token, environments[0], out successfullyParsed);
environments[0].Subroutines.AddSubroutine(procedure);
var globalEnvironmentElementsCount = environments[0].Locals.Count() +
environments[0].Subroutines.Count();
if (procedure.Identifier == "MAIN")
{
// SEM: Main no puede tener parametros
if (procedure.Environment.FormalParameters.HasParameters())
{
LogMainHasParameters();
successfullyParsed = false;
}
procedure.Environment = environments[0];
}
environments.Push(procedure.Environment);
successfullyParsed &= ParserFactory.GetEnvironmentParser().Parse(lexer, lexer.GetNextToken(), attributes);
// SEM: Main no puede tener entorno local
if (globalEnvironmentElementsCount < (environments[0].Locals.Count() + environments[0].Subroutines.Count()))
{
LogMainHasLocalEnvironment();
successfullyParsed = false;
}
successfullyParsed &= ParseProcedureBody(lexer, lexer.GetCurrentToken(), procedure, attributes);
successfullyParsed &= ParseProcedureEnd(lexer, lexer.GetCurrentToken());
environments.Pop();
return(successfullyParsed);
}
public bool Parse(Lexer lexer, Token token, Attributes attributes)
{
var successfullyParsed = true;
var environments = ((Environments)attributes["ENVS"]);
var function = ParseFunctionDeclaration(lexer, token, environments[0], out successfullyParsed);
environments[0].Subroutines.AddSubroutine(function);
environments.Push(function.Environment);
successfullyParsed &= ParserFactory.GetEnvironmentParser().Parse(lexer, lexer.GetNextToken(), attributes);
successfullyParsed &= ParseFunctionBody(lexer, lexer.GetCurrentToken(), function, attributes);
successfullyParsed &= ParseFunctionEnd(lexer, lexer.GetCurrentToken(), function, attributes);
environments.Pop();
return(successfullyParsed);
}
