Package tech.ixor.calclox

Interface CalculatorFrontend

public interface CalculatorFrontend

Connects a host application to CalcLox input variables and program output.

Method Summary

Modifier and Type	Method	Description
void	output(String result)	Receives the textual value produced by an output statement.
Map<String,Double>	variables()	Returns the mutable variable map shared with a program.

Method Details

variables

Map<String,Double> variables()

Returns the mutable variable map shared with a program. A define name; declaration reads from this map; numeric CalcLox declarations and assignments are written back to it.

Returns:

the mutable host variable map, or null when host variables are unsupported

output

void output(String result)

Receives the textual value produced by an output statement.

Parameters:

result - the result to be displayed