87 lines
3 KiB
VimL
87 lines
3 KiB
VimL
" Author: w0rp <devw0rp@gmail.com>
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" Description: This file implements functions for jumping around in a file
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" based on ALE's internal loclist.
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" Search for the nearest line either before or after the current position
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" in the loclist. The argument 'wrap' can be passed to enable wrapping
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" around the end of the list.
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"
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" If there are no items or we have hit the end with wrapping off, an empty
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" List will be returned, otherwise a pair of [line_number, column_number] will
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" be returned.
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function! ale#loclist_jumping#FindNearest(direction, wrap) abort
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let l:buffer = bufnr('')
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let l:pos = getcurpos()
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let l:info = get(g:ale_buffer_info, bufnr('%'), {'loclist': []})
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" Copy the list and filter to only the items in this buffer.
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let l:loclist = filter(copy(l:info.loclist), 'v:val.bufnr == l:buffer')
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let l:search_item = {'bufnr': l:buffer, 'lnum': l:pos[1], 'col': l:pos[2]}
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" When searching backwards, so we can find the next smallest match.
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if a:direction is# 'before'
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call reverse(l:loclist)
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endif
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" Look for items before or after the current position.
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for l:item in l:loclist
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" Compare the cursor with a item where the column number is bounded,
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" such that it's possible for the cursor to actually be on the given
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" column number, without modifying the cursor number we return. This
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" will allow us to move through matches, but still let us move the
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" cursor to a line without changing the column, in some cases.
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let l:cmp_value = ale#util#LocItemCompare(
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\ {
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\ 'bufnr': l:buffer,
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\ 'lnum': l:item.lnum,
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\ 'col': min([
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\ max([l:item.col, 1]),
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\ max([len(getline(l:item.lnum)), 1]),
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\ ]),
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\ },
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\ l:search_item
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\)
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if a:direction is# 'before' && l:cmp_value < 0
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return [l:item.lnum, l:item.col]
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endif
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if a:direction is# 'after' && l:cmp_value > 0
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return [l:item.lnum, l:item.col]
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endif
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endfor
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" If we found nothing, and the wrap option is set to 1, then we should
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" wrap around the list of warnings/errors
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if a:wrap && !empty(l:loclist)
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let l:item = l:loclist[0]
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return [l:item.lnum, l:item.col]
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endif
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return []
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endfunction
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" As before, find the nearest match, but position the cursor at it.
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function! ale#loclist_jumping#Jump(direction, wrap) abort
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let l:nearest = ale#loclist_jumping#FindNearest(a:direction, a:wrap)
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if !empty(l:nearest)
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call cursor(l:nearest)
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endif
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endfunction
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function! ale#loclist_jumping#JumpToIndex(index) abort
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let l:buffer = bufnr('')
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let l:info = get(g:ale_buffer_info, l:buffer, {'loclist': []})
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let l:loclist = filter(copy(l:info.loclist), 'v:val.bufnr == l:buffer')
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if empty(l:loclist)
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return
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endif
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let l:item = l:loclist[a:index]
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if !empty(l:item)
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call cursor([l:item.lnum, l:item.col])
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endif
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endfunction
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