public LetStateMachine(VariableTable variables, FileManager fileManager)
{
CurrentState = LetMachineState.START;
transitions = new Dictionary <LetStateTransition, LetMachineState>
{
{ new LetStateTransition(LetMachineState.START, TokenType.END), LetMachineState.START },
{ new LetStateTransition(LetMachineState.START, TokenType.LET), LetMachineState.LET },
{ new LetStateTransition(LetMachineState.LET, TokenType.VAR), LetMachineState.VAR_FROM_INDEX },
{ new LetStateTransition(LetMachineState.LET, TokenType.ARRAY_ELEMENT), LetMachineState.VAR_FROM_INDEX },
{ new LetStateTransition(LetMachineState.VAR_FROM_INDEX, TokenType.EQUALS), LetMachineState.EQUALS },
{ new LetStateTransition(LetMachineState.EQUALS, TokenType.END), LetMachineState.START },
};
this.variables = variables;
this.command = new LetCommand(fileManager);
this.exp = new ArithmeticStateMachine(variables, fileManager);
}
public IfStateMachine(VariableTable variables, FileManager fileManager)
{
CurrentState = IfMachineState.START;
transitions = new Dictionary <IfStateTransition, IfMachineState>
{
{ new IfStateTransition(IfMachineState.START, TokenType.END), IfMachineState.START },
{ new IfStateTransition(IfMachineState.START, TokenType.IF), IfMachineState.IF_FIRST_EXP },
{ new IfStateTransition(IfMachineState.IF_FIRST_EXP, TokenType.EQUALS), IfMachineState.COMPARISON },
{ new IfStateTransition(IfMachineState.IF_FIRST_EXP, TokenType.NOT_EQUAL), IfMachineState.COMPARISON },
{ new IfStateTransition(IfMachineState.IF_FIRST_EXP, TokenType.GREATER), IfMachineState.COMPARISON },
{ new IfStateTransition(IfMachineState.IF_FIRST_EXP, TokenType.GREATER_OR_EQUAL), IfMachineState.COMPARISON },
{ new IfStateTransition(IfMachineState.IF_FIRST_EXP, TokenType.LESS), IfMachineState.COMPARISON },
{ new IfStateTransition(IfMachineState.IF_FIRST_EXP, TokenType.LESS_OR_EQUAL), IfMachineState.COMPARISON },
{ new IfStateTransition(IfMachineState.COMPARISON, TokenType.THEN), IfMachineState.DESTINATION },
{ new IfStateTransition(IfMachineState.DESTINATION, TokenType.INT), IfMachineState.START }
};
this.command = new IfCommand(variables, fileManager);
this.exp = new ArithmeticStateMachine(variables, fileManager);
}
public ForStateMachine(VariableTable variables, FileManager fileManager)
{
CurrentState = ForMachineState.START;
transitions = new Dictionary <ForStateTransition, ForMachineState>
{
{ new ForStateTransition(ForMachineState.START, TokenType.END), ForMachineState.START },
{ new ForStateTransition(ForMachineState.START, TokenType.FOR), ForMachineState.FOR },
// guarda variavel a ser loopada
{ new ForStateTransition(ForMachineState.FOR, TokenType.VAR), ForMachineState.VAR },
{ new ForStateTransition(ForMachineState.FOR, TokenType.ARRAY), ForMachineState.VAR },
// recebe token que indica a atribuicao do valor a seguir a variavel recebida
{ new ForStateTransition(ForMachineState.VAR, TokenType.EQUALS), ForMachineState.EQUALS },
// calcula valor da expressao a ser usada como valor inicial -> atribui a variavel a ser loopada armazenada anteriormente (guarda na memoria)
{ new ForStateTransition(ForMachineState.EQUALS, TokenType.TO), ForMachineState.TO },
// calcula valor da expressao a ser usada como valor final -> guarda na memoria esse valor para futuras comparacoes
{ new ForStateTransition(ForMachineState.TO, TokenType.STEP), ForMachineState.STEP },
// calcula valor da expressao a ser usada como passo -> guarda na memoria esse valor para futuro uso na hora de executar o passo
{ new ForStateTransition(ForMachineState.STEP, TokenType.END), ForMachineState.START },
};
this.variables = variables;
this.command = new ForCommand(variables, fileManager);
this.exp = new ArithmeticStateMachine(variables, fileManager);
}