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Fix unstable behavior in "NERDTreeUI.getPath()"

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This commit prevents "NERDTreeUI.getPath()" from returning a "Path"
object even when no tree node was selected.  Previously, positioning
your cursor on one of the blank lines above the tree and running...

  :echo g:NERDTreeFileNode.GetSelected()

... could potentially return the path for the current working
directory (your working directory needs to be under the tree root).
This is because the constructor for "Path" objects returns a "Path"
for the current working directory when passed an empty string.  So,
we need to short circuit the "getPath()" function for lines that
cannot possibly be tree nodes.

This solves the problem for "GetSelected()" because that method uses
the "getPath()" method from the "UI" class to do its work.

Note that this bug only presented for me on *nix systems.
This commit is contained in:
Jason Franklin 2018-01-06 09:46:40 -05:00
parent 1d14961285
commit a019486dc8
1 changed files with 4 additions and 0 deletions
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4
lib/nerdtree/ui.vim
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@ -158,6 +158,10 @@ function! s:UI.getPath(ln)
return self.nerdtree.root.path.getParent() return self.nerdtree.root.path.getParent()
endif endif
if a:ln < rootLine
return {}
endif
let indent = self._indentLevelFor(line) let indent = self._indentLevelFor(line)
" remove the tree parts and the leading space " remove the tree parts and the leading space