object

# wrapper

> Adviser tool for porting and wrapping plain Prolog applications.

author:
  `Paulo Moura`
version:
  `0.5`
date:
  `2016/5/3`

compilation flags:
  `static, context_switching_calls`

implements:
  `public expanding`
provides:
  `logtalk::message_hook/4`
  `logtalk::message_prefix_stream/4`
  `logtalk::message_tokens//2`

## Public interface

### rdirectory/2

> Advises the user on missing directives for converting all plain Prolog files in a directory and its sub-directories to Logtalk objects using the specified options.

compilation flags:
  `static`
template:
  `rdirectory(Directory,Options)`
mode – number of proofs:
  `rdirectory(+atom,+list(compound)) – one`

### rdirectory/1

> Advises the user on missing directives for converting all plain Prolog files in a directory and its sub-directories to Logtalk objects using default options.

compilation flags:
  `static`
template:
  `rdirectory(Directory)`
mode – number of proofs:
  `rdirectory(+atom) – one`

### directory/2

> Advises the user on missing directives for converting all plain Prolog files in a directory to Logtalk objects using the specified options.

compilation flags:
  `static`
template:
  `directory(Directory,Options)`
mode – number of proofs:
  `directory(+atom,+list(compound)) – one`

### directory/1

> Advises the user on missing directives for converting all plain Prolog files in a directory to Logtalk objects using default options.

compilation flags:
  `static`
template:
  `directory(Directory)`
mode – number of proofs:
  `directory(+atom) – one`

### directories/2

> Advises the user on missing directives for converting all Prolog files in a set of directories to Logtalk objects using the specified options.

compilation flags:
  `static`
template:
  `directories(Directories,Options)`
mode – number of proofs:
  `directories(+list(atom),+list(compound)) – one`

### directories/1

> Advises the user on missing directives for converting all Prolog files in a set of directories to Logtalk objects using default options.

compilation flags:
  `static`
template:
  `directories(Directories)`
mode – number of proofs:
  `directories(+list(atom)) – one`

### files/2

> Advises the user on missing directives for converting a list of plain Prolog files to Logtalk objects using the specified options.

compilation flags:
  `static`
template:
  `files(Files,Options)`
mode – number of proofs:
  `files(+list(atom),+list(compound)) – one`

### files/1

> Advises the user on missing directives for converting a list of plain Prolog files to Logtalk objects using default options.

compilation flags:
  `static`
template:
  `files(Files)`
mode – number of proofs:
  `files(+list(atom)) – one`

### save/1

> Saves the generated wrapper objects (plus a loader file per directory) for all advised files using the specified options. The wrapper objects are saved to the same directories that contain the wrapped Prolog files.

compilation flags:
  `static`
template:
  `save(Options)`
mode – number of proofs:
  `save(+list(compound)) – one`

### save/0

> Saves the generated wrapper objects (plus a loader file per directory) for all advised files using default options. The wrapper objects are saved to the same directories that contain the wrapped Prolog files.

compilation flags:
  `static`
mode – number of proofs:
  `save – one`

### default_option/1

> Enumerates by backtracking the default options used when generating the wrapper objects.

compilation flags:
  `static`
template:
  `default_option(DefaultOption)`
mode – number of proofs:
  `default_option(?compound) – zero_or_more`

### default_options/1

> Returns a list of the default options used when generating the wrapper objects.

compilation flags:
  `static`
template:
  `default_options(DefaultOptions)`
mode – number of proofs:
  `default_options(-list(compound)) – one`

## Protected interface

(see related entities)

## Private predicates

### merge_options/2

> Merges the user options with the default options, returning the list of options used when generating the wrapper objects.

compilation flags:
  `static`
template:
  `merge_options(UserOptions,Options)`
mode – number of proofs:
  `merge_options(+list(compound),-list(compound)) – one`

### predicate_called_but_not_defined_/2

> Table of called object predicates that are not locally defined.

compilation flags:
  `dynamic`
template:
  `predicate_called_but_not_defined_(Object,Predicate)`
mode – number of proofs:
  `predicate_called_but_not_defined_(?atom,?predicate_indicator) – zero_or_more`

### object_predicate_called_/3

> Table of called object predicates.

compilation flags:
  `dynamic`
template:
  `object_predicate_called_(Object,Other,Predicate)`
mode – number of proofs:
  `object_predicate_called_(?atom,?atom,?predicate_indicator) – zero_or_more`

### module_predicate_called_/3

> Table of called module predicates.

compilation flags:
  `dynamic`
template:
  `module_predicate_called_(Object,Module,Predicate)`
mode – number of proofs:
  `module_predicate_called_(?atom,?atom,?predicate_indicator) – zero_or_more`

### unknown_predicate_called_/2

> Table of predicates called but not defined.

compilation flags:
  `dynamic`
template:
  `unknown_predicate_called_(Object,Predicate)`
mode – number of proofs:
  `unknown_predicate_called_(?atom,?predicate_indicator) – zero_or_more`

### missing_predicate_directive_/3

> Table of missing predicate directives.

compilation flags:
  `dynamic`
template:
  `missing_predicate_directive_(Object,Directive,Predicate)`
mode – number of proofs:
  `missing_predicate_directive_(?atom,?predicate_indicator,?predicate_indicator) – zero_or_more`

### non_standard_predicate_call_/2

> Table of called non-standard predicates.

compilation flags:
  `dynamic`
template:
  `non_standard_predicate_call_(Object,Predicate)`
mode – number of proofs:
  `non_standard_predicate_call_(?atom,?predicate_indicator) – zero_or_more`

### dynamic_directive_/3

> Table of declared dynamic predicates.

compilation flags:
  `dynamic`
template:
  `dynamic_directive_(Object,Line,Predicate)`
mode – number of proofs:
  `dynamic_directive_(?atom,?integer,?predicate_indicator) – zero_or_more`

### multifile_directive_/3

> Table of declared multifile predicates.

compilation flags:
  `dynamic`
template:
  `multifile_directive_(Object,Line,Predicate)`
mode – number of proofs:
  `multifile_directive_(?atom,?integer,?predicate_indicator) – zero_or_more`

### add_directive_/2

> Table of directives to be added.

compilation flags:
  `dynamic`
template:
  `add_directive_(Object,Directive)`
mode – number of proofs:
  `add_directive_(?atom,?predicate_indicator) – zero_or_more`

### add_directive_/3

> Table of directives to be added to complement existing directives.

compilation flags:
  `dynamic`
template:
  `add_directive_(Object,Directive,NewDirective)`
mode – number of proofs:
  `add_directive_(?atom,?predicate_indicator,?predicate_indicator) – zero_or_more`

### remove_directive_/2

> Table of directives to be removed.

compilation flags:
  `dynamic`
template:
  `remove_directive_(Object,Directive)`
mode – number of proofs:
  `remove_directive_(?atom,?predicate_indicator) – zero_or_more`

### file_being_advised_/4

> Table of files being advised are respective directories and names (basename without extension).

compilation flags:
  `dynamic`
template:
  `file_being_advised_(File,Path,Directory,Name)`
mode – number of proofs:
  `file_being_advised_(?atom,?atom,?atom,?atom) – zero_or_more`

## Operators

### (none)

## Remarks

prolog_extensions(Extensions) option
  list of file name extensions used to recognize Prolog source files (default is ['.pl'])

logtalk_extension(Extension) option
  Logtalk file name extension to be used for the generated wrapper files (default is '.lgt')

exclude_files(Files) option
  list of Prolog source files names to exclude (default is [])

exclude_directories(Files) option
  list of sub-directory names to exclude (default is [])

include_wrapped_files(Boolean)
  generate include/1 directives for the wrapped Prolog source files (default is true)

## See also

### (none)