Struct svn_diff_output_fns_t 

#[repr(C)]
pub struct svn_diff_output_fns_t {
    pub output_common: Option<unsafe extern "C" fn(output_baton: *mut c_void, original_start: apr_off_t, original_length: apr_off_t, modified_start: apr_off_t, modified_length: apr_off_t, latest_start: apr_off_t, latest_length: apr_off_t) -> *mut svn_error_t>,
    pub output_diff_modified: Option<unsafe extern "C" fn(output_baton: *mut c_void, original_start: apr_off_t, original_length: apr_off_t, modified_start: apr_off_t, modified_length: apr_off_t, latest_start: apr_off_t, latest_length: apr_off_t) -> *mut svn_error_t>,
    pub output_diff_latest: Option<unsafe extern "C" fn(output_baton: *mut c_void, original_start: apr_off_t, original_length: apr_off_t, modified_start: apr_off_t, modified_length: apr_off_t, latest_start: apr_off_t, latest_length: apr_off_t) -> *mut svn_error_t>,
    pub output_diff_common: Option<unsafe extern "C" fn(output_baton: *mut c_void, original_start: apr_off_t, original_length: apr_off_t, modified_start: apr_off_t, modified_length: apr_off_t, latest_start: apr_off_t, latest_length: apr_off_t) -> *mut svn_error_t>,
    pub output_conflict: Option<unsafe extern "C" fn(output_baton: *mut c_void, original_start: apr_off_t, original_length: apr_off_t, modified_start: apr_off_t, modified_length: apr_off_t, latest_start: apr_off_t, latest_length: apr_off_t, resolved_diff: *mut svn_diff_t) -> *mut svn_error_t>,
}

A vtable for displaying (or consuming) differences between datasources.

Differences, similarities, and conflicts are described by lining up “ranges” of data.

Any of the function pointers in this vtable may be NULL to ignore the corresponding kinds of output.

@note These callbacks describe data ranges in units of “tokens”. A “token” is whatever you’ve defined it to be in your datasource @c svn_diff_fns_t vtable.

Fields

output_common: Option<unsafe extern "C" fn(output_baton: *mut c_void, original_start: apr_off_t, original_length: apr_off_t, modified_start: apr_off_t, modified_length: apr_off_t, latest_start: apr_off_t, latest_length: apr_off_t) -> *mut svn_error_t>

If doing a two-way diff, then an identical data range was found between the “original” and “modified” datasources. Specifically, the match starts at @a original_start and goes for @a original_length tokens in the original data, and at @a modified_start for @a modified_length tokens in the modified data.

If doing a three-way diff, then all three datasources have matching data ranges. The range @a latest_start, @a latest_length in the “latest” datasource is identical to the range @a original_start, @a original_length in the original data, and is also identical to the range @a modified_start, @a modified_length in the modified data.

output_diff_modified: Option<unsafe extern "C" fn(output_baton: *mut c_void, original_start: apr_off_t, original_length: apr_off_t, modified_start: apr_off_t, modified_length: apr_off_t, latest_start: apr_off_t, latest_length: apr_off_t) -> *mut svn_error_t>

If doing a two-way diff, then an conflicting data range was found between the “original” and “modified” datasources. Specifically, the conflict starts at @a original_start and goes for @a original_length tokens in the original data, and at @a modified_start for @a modified_length tokens in the modified data.

If doing a three-way diff, then an identical data range was discovered between the “original” and “latest” datasources, but this conflicts with a range in the “modified” datasource.

output_diff_latest: Option<unsafe extern "C" fn(output_baton: *mut c_void, original_start: apr_off_t, original_length: apr_off_t, modified_start: apr_off_t, modified_length: apr_off_t, latest_start: apr_off_t, latest_length: apr_off_t) -> *mut svn_error_t>

An identical data range was discovered between the “original” and “modified” datasources, but this conflicts with a range in the “latest” datasource.

output_diff_common: Option<unsafe extern "C" fn(output_baton: *mut c_void, original_start: apr_off_t, original_length: apr_off_t, modified_start: apr_off_t, modified_length: apr_off_t, latest_start: apr_off_t, latest_length: apr_off_t) -> *mut svn_error_t>

An identical data range was discovered between the “modified” and “latest” datasources, but this conflicts with a range in the “original” datasource.

output_conflict: Option<unsafe extern "C" fn(output_baton: *mut c_void, original_start: apr_off_t, original_length: apr_off_t, modified_start: apr_off_t, modified_length: apr_off_t, latest_start: apr_off_t, latest_length: apr_off_t, resolved_diff: *mut svn_diff_t) -> *mut svn_error_t>

All three datasources have conflicting data ranges. The range @a latest_start, @a latest_length in the “latest” datasource conflicts with the range @a original_start, @a original_length in the “original” datasource, and also conflicts with the range @a modified_start, @a modified_length in the “modified” datasource. If there are common ranges in the “modified” and “latest” datasources in this conflicting range, @a resolved_diff will contain a diff which can be used to retrieve the common and conflicting ranges.

Trait Implementations

impl Clone for svn_diff_output_fns_t

fn clone(&self) -> svn_diff_output_fns_t

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for svn_diff_output_fns_t

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for svn_diff_output_fns_t

fn default() -> svn_diff_output_fns_t

Returns the “default value” for a type.

impl Copy for svn_diff_output_fns_t