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145 lines
3.4 KiB
C
145 lines
3.4 KiB
C
/** \file function.h
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Prototypes for functions for storing and retrieving function
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information. These functions also take care of autoloading
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functions in the $fish_function_path. Actual function evaluation
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is taken care of by the parser and to some degree the builtin
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handling library.
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*/
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#ifndef FISH_FUNCTION_H
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#define FISH_FUNCTION_H
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#include <wchar.h>
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#include "util.h"
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#include "common.h"
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/**
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Structure describing a function. This is used by the parser to
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store data on a function while parsing it. It is not used
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internally to store functions, the function_internal_data_t
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structure is used for that purpose. Parhaps these two should be
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merged.
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*/
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typedef struct function_data
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{
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/**
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Name of function
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*/
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wchar_t *name;
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/**
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Description of function
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*/
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wchar_t *description;
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/**
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Function definition
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*/
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wchar_t *definition;
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/**
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List of all event handlers for this function
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*/
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array_list_t *events;
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/**
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List of all named arguments for this function
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*/
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array_list_t *named_arguments;
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/**
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Set to non-zero if invoking this function shadows the variables
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of the underlying function.
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*/
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int shadows;
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}
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function_data_t;
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/**
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Initialize function data
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*/
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void function_init();
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/**
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Destroy function data
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*/
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void function_destroy();
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/**
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Add an function. The parameters values are copied and should be
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freed by the caller.
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*/
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void function_add( function_data_t *data );
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/**
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Remove the function with the specified name.
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*/
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void function_remove( const wchar_t *name );
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/**
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Returns the definition of the function with the name \c name.
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*/
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const wchar_t *function_get_definition( const wchar_t *name );
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/**
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Returns the description of the function with the name \c name.
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*/
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const wchar_t *function_get_desc( const wchar_t *name );
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/**
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Sets the description of the function with the name \c name.
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*/
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void function_set_desc( const wchar_t *name, const wchar_t *desc );
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/**
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Returns true if the function with the name name exists.
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*/
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int function_exists( const wchar_t *name );
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/**
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Returns true if the function with the name name exists, without triggering autoload.
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*/
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int function_exists_no_autoload( const wchar_t *name );
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/**
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Returns all function names.
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\param get_hidden whether to include hidden functions, i.e. ones starting with an underscore
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*/
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wcstring_list_t function_get_names( int get_hidden );
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/**
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Returns tha absolute path of the file where the specified function
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was defined. Returns 0 if the file was defined on the commandline.
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This function does not autoload functions, it will only work on
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functions that have already been defined.
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*/
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const wchar_t *function_get_definition_file( const wchar_t *name );
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/**
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Returns the linenumber where the definition of the specified
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function started.
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This function does not autoload functions, it will only work on
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functions that have already been defined.
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*/
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int function_get_definition_offset( const wchar_t *name );
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/**
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Returns a list of all named arguments of the specified function.
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*/
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wcstring_list_t function_get_named_arguments( const wchar_t *name );
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/**
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Creates a new function using the same definition as the specified function.
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Returns non-zero if copy is successful.
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*/
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int function_copy( const wchar_t *name, const wchar_t *new_name );
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/**
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Returns whether this function shadows variables of the underlying function
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*/
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int function_get_shadows( const wchar_t *name );
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#endif
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