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https://github.com/amix/vimrc
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Updated plugins
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amix
303
sources_non_forked/vim-go/autoload/go/guru.vim
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303
sources_non_forked/vim-go/autoload/go/guru.vim
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" guru.vim -- Vim integration for the Go guru.
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func! s:RunGuru(mode, format, selected, needs_scope) range abort
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"return with a warning if the binary doesn't exist
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let bin_path = go#path#CheckBinPath("guru")
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if empty(bin_path)
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return {'err': "bin path not found"}
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endif
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let filename = expand('%:p')
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let dirname = expand('%:p:h')
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let pkg = go#package#ImportPath(dirname)
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" this is important, check it!
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if pkg == -1 && a:needs_scope
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return {'err': "current directory is not inside of a valid GOPATH"}
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endif
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" start constructing the 'command' variable
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let command = bin_path
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" enable outputting in json format
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if a:format == "json"
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let command .= " -json"
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endif
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" check for any tags
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if exists('g:go_guru_tags')
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let tags = get(g:, 'go_guru_tags')
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let command .= printf(" -tags %s", tags)
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endif
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" some modes require scope to be defined (such as callers). For these we
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" choose a sensible setting, which is using the current file's package
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let scopes = []
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if a:needs_scope
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let scopes = [pkg]
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endif
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" check for any user defined scope setting. users can define the scope,
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" in package pattern form. examples:
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" golang.org/x/tools/cmd/guru # a single package
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" golang.org/x/tools/... # all packages beneath dir
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" ... # the entire workspace.
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if exists('g:go_guru_scope')
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" check that the setting is of type list
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if type(get(g:, 'go_guru_scope')) != type([])
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return {'err' : "go_guru_scope should of type list"}
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endif
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let scopes = get(g:, 'go_guru_scope')
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endif
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" now add the scope to our command if there is any
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if !empty(scopes)
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" strip trailing slashes for each path in scoped. bug:
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" https://github.com/golang/go/issues/14584
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let scopes = go#util#StripTrailingSlash(scopes)
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" create shell-safe entries of the list
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let scopes = go#util#Shelllist(scopes)
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" guru expect a comma-separated list of patterns, construct it
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let scope = join(scopes, ",")
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let command .= printf(" -scope %s", scope)
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endif
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let pos = printf("#%s", go#util#OffsetCursor())
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if a:selected != -1
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" means we have a range, get it
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let pos1 = go#util#Offset(line("'<"), col("'<"))
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let pos2 = go#util#Offset(line("'>"), col("'>"))
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let pos = printf("#%s,#%s", pos1, pos2)
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endif
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" this is our final command
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let command .= printf(' %s %s:%s', a:mode, shellescape(filename), pos)
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let old_gopath = $GOPATH
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let $GOPATH = go#path#Detect()
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" the query might take time, let us give some feedback
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call go#util#EchoProgress("analysing ...")
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" run, forrest run!!!
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let out = go#util#System(command)
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let $GOPATH = old_gopath
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if go#util#ShellError() != 0
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" the output contains the error message
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return {'err' : out}
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endif
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return {'out': out}
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endfunc
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" This uses Vim's errorformat to parse the output from Guru's 'plain output
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" and put it into location list. I believe using errorformat is much more
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" easier to use. If we need more power we can always switch back to parse it
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" via regex.
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func! s:loclistSecond(output)
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" backup users errorformat, will be restored once we are finished
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let old_errorformat = &errorformat
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" match two possible styles of errorformats:
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"
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" 'file:line.col-line2.col2: message'
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" 'file:line:col: message'
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"
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" We discard line2 and col2 for the first errorformat, because it's not
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" useful and location only has the ability to show one line and column
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" number
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let errformat = "%f:%l.%c-%[%^:]%#:\ %m,%f:%l:%c:\ %m"
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call go#list#ParseFormat("locationlist", errformat, split(a:output, "\n"))
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let errors = go#list#Get("locationlist")
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call go#list#Window("locationlist", len(errors))
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endfun
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function! go#guru#Scope(...)
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if a:0
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if a:0 == 1 && a:1 == '""'
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unlet g:go_guru_scope
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call go#util#EchoSuccess("guru scope is cleared")
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else
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let g:go_guru_scope = a:000
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call go#util#EchoSuccess("guru scope changed to: ". join(a:000, ","))
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endif
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return
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endif
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if !exists('g:go_guru_scope')
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call go#util#EchoError("guru scope is not set")
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else
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call go#util#EchoSuccess("current guru scope: ". join(g:go_guru_scope, ","))
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endif
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endfunction
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function! go#guru#Tags(...)
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if a:0
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if a:0 == 1 && a:1 == '""'
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unlet g:go_guru_tags
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call go#util#EchoSuccess("guru tags is cleared")
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else
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let g:go_guru_tags = a:1
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call go#util#EchoSuccess("guru tags changed to: ". a:1)
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endif
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return
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endif
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if !exists('g:go_guru_tags')
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call go#util#EchoSuccess("guru tags is not set")
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else
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call go#util#EchoSuccess("current guru tags: ". a:1)
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endif
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endfunction
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" Show 'implements' relation for selected package
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function! go#guru#Implements(selected)
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let out = s:RunGuru('implements', 'plain', a:selected, 1)
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if has_key(out, 'err')
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call go#util#EchoError(out.err)
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return
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endif
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call s:loclistSecond(out.out)
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endfunction
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" Describe selected syntax: definition, methods, etc
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function! go#guru#Describe(selected)
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let out = s:RunGuru('describe', 'plain', a:selected, 0)
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if has_key(out, 'err')
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call go#util#EchoError(out.err)
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return
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endif
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call s:loclistSecond(out.out)
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endfunction
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" Show possible targets of selected function call
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function! go#guru#Callees(selected)
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let out = s:RunGuru('callees', 'plain', a:selected, 1)
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if has_key(out, 'err')
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call go#util#EchoError(out.err)
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return
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endif
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call s:loclistSecond(out.out)
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endfunction
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" Show possible callers of selected function
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function! go#guru#Callers(selected)
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let out = s:RunGuru('callers', 'plain', a:selected, 1)
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if has_key(out, 'err')
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call go#util#EchoError(out.err)
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return
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endif
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call s:loclistSecond(out.out)
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endfunction
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" Show path from callgraph root to selected function
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function! go#guru#Callstack(selected)
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let out = s:RunGuru('callstack', 'plain', a:selected, 1)
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if has_key(out, 'err')
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call go#util#EchoError(out.err)
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return
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endif
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call s:loclistSecond(out.out)
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endfunction
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" Show free variables of selection
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function! go#guru#Freevars(selected)
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" Freevars requires a selection
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if a:selected == -1
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call go#util#EchoError("GoFreevars requires a selection (range) of code")
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return
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endif
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let out = s:RunGuru('freevars', 'plain', a:selected, 0)
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if has_key(out, 'err')
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call go#util#EchoError(out.err)
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return
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endif
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call s:loclistSecond(out.out)
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endfunction
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" Show send/receive corresponding to selected channel op
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function! go#guru#ChannelPeers(selected)
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let out = s:RunGuru('peers', 'plain', a:selected, 1)
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if has_key(out, 'err')
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call go#util#EchoError(out.err)
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return
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endif
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call s:loclistSecond(out.out)
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endfunction
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" Show all refs to entity denoted by selected identifier
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function! go#guru#Referrers(selected)
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let out = s:RunGuru('referrers', 'plain', a:selected, 0)
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if has_key(out, 'err')
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call go#util#EchoError(out.err)
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return
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endif
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call s:loclistSecond(out.out)
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endfunction
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function! go#guru#What(selected)
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" nvim doesn't have JSON support, though they work on it:
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" https://github.com/neovim/neovim/pull/4131
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if has('nvim')
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return {'err': "GoWhat is not supported in Neovim"}
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endif
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" json_encode() and friends are introduced with this patch
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" https://groups.google.com/d/msg/vim_dev/vLupTNhQhZ8/cDGIk0JEDgAJ
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if !has('patch-7.4.1304')
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return {'err': "GoWhat is supported with Vim version 7.4-1304 or later"}
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endif
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let out = s:RunGuru('what', 'json', a:selected, 0)
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if has_key(out, 'err')
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return out.err
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endif
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call s:loclistSecond(out.out)
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let result = json_decode(out.out)
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if type(result) != type({})
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return {'err': "malformed output from guru"}
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endif
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if !has_key(result, 'what')
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return {'err': "no what query found for the given identifier"}
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endif
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return {'out': result.what}
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endfunction
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function! go#guru#SameIds(selected)
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let result = go#guru#What(a:selected)
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if has_key(out, 'err')
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call go#util#EchoError(out.err)
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return
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endif
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if !has_key(result.out, 'sameids')
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call go#util#EchoError("no same_ids founds for the given identifier")
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return -1
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endif
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let same_ids = result.what.sameids
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echo same_ids
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endfunction
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" vim:ts=4:sw=4:et
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