2013-08-27 15:58:26 -06:00
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" -*- text -*-
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" oracle.vim -- Vim integration for the Go oracle.
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"
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" Load with (e.g.) :source oracle.vim
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" Call with (e.g.) :GoOracleDescribe
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" while cursor or selection is over syntax of interest.
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" Run :copen to show the quick-fix file.
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"
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" This is an absolutely rudimentary integration of the Go Oracle into
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" Vim's quickfix mechanism and it needs a number of usability
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" improvements before it can be practically useful to Vim users.
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" Voluntary contributions welcomed!
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"
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" TODO(adonovan):
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" - prompt/save the buffer if modified.
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" - reject buffers with no filename.
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" - hide all filenames in quickfix buffer.
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" Users should customize this to their analysis scope, e.g. main package(s).
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let s:scope = "/home/adonovan/go3/got/d.go"
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" The path to the Go oracle executable.
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let s:go_oracle = "$GOROOT/bin/oracle"
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" Enable Vim to recognize GNU-style 'file:line.col-line.col: message' format.
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set errorformat+=%f:%l.%c-%*[0-9].%*[0-9]:\ %m
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func! s:RunOracle(mode) abort
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let s:pos = line2byte(line("."))+col(".")
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let s:errfile = tempname()
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2013-08-29 19:32:49 -06:00
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let s:cmd = printf("!%s -mode=%s '-pos=%s %d' %s >%s",
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2013-08-27 15:58:26 -06:00
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\ s:go_oracle, a:mode, bufname(""), s:pos, s:scope, s:errfile)
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execute s:cmd
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execute "cfile " . s:errfile
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endfun
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" Describe the expression at the current point.
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command! GoOracleDescribe
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\ call s:RunOracle("describe")
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" Show possible callees of the function call at the current point.
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command! GoOracleCallees
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\ call s:RunOracle("callees")
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" Show the set of callers of the function containing the current point.
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command! GoOracleCallers
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\ call s:RunOracle("callers")
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" Show the callgraph of the current program.
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command! GoOracleCallgraph
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\ call s:RunOracle("callgraph")
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" Describe the 'implements' relation for types in the
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" package containing the current point.
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command! GoOracleImplements
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\ call s:RunOracle("implements")
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" Enumerate the set of possible corresponding sends/receives for
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" this channel receive/send operation.
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command! GoOracleChannelPeers
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\ call s:RunOracle("peers")
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