XPCE based font-end of the Prolog cross-referencer. Tasks:

• Cross-reference currently loaded program OK
• Generate module-dependency graph OK
• Information on
  • Syntax and other encountered errors
  • Export/Import relation between modules OK
  • Undefined predicates OK
  • Unused predicates OK
• Summary information
  • Syntax and other encountered errors
  • Exports never used (not for libs!)
  • Undefined predicates
  • Unused predicates
• Export module import and export header
  • Using require/1
  • Using use_module/1
  • Using use_module/2 OK
  • Export header for non-module files OK

See also

- library(prolog_xref) holds the actual data-collection.

bug

- Tool produces an error if a file that has been xref'ed is deleted. Paulo Moura.

 gxref

Start graphical cross-referencer on loaded program. The GUI is started in the XPCE thread.

 xref_file_exports(+File, -Exports)

Produce the export-header for non-module files. Fails if the file is already a module file.

Undocumented predicates

The following predicates are exported, but not or incorrectly documented.

 xref_file_imports(Arg1, Arg2)