com.scriptbasic.interfaces

Interface SingleIncludeChecker

All Known Implementing Classes:

BasicSingleIncludeChecker

public interface SingleIncludeChecker

Checks that a file is included only once. This is important to prevent circular includes. When the LexicalAnalyzer realizes that a BASIC program tries to include another file, it uses this checker.

Author:

Peter Verhas

Method Summary

Methods

Modifier and Type	Method and Description
void	check(String key) Check that the source file was not included yet.

Method Detail

check

void check(String key)
           throws IOException

Check that the source file was not included yet. If the file was already included then the method throws IOException.

Parameters:

key - in a unique key that identifies a file. This is usually the full path to the file. It is important that the key for the file is always the same otherwise the checker can not recognize the repeated include.

Throws:

IOException - if the file was already included.