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https://github.com/mfussenegger/nvim-jdtls
synced 2024-09-16 14:34:13 +02:00
Add support for decompiling .class files
Requires https://github.com/eclipse/eclipse.jdt.ls/pull/2515
This commit is contained in:
parent
34202bc141
commit
f8fb45e05e
3 changed files with 51 additions and 67 deletions
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@ -120,16 +120,15 @@ M.jol({mode?}, {classname?}) *jdtls.jol*
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{classname?} (string) fully qualified class name. Defaults to the current class.
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M.open_jdt_link() *jdtls.open_jdt_link*
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Reads the uri into the current buffer
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This requires at least one open buffer that is connected to the jdtls
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language server.
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M.open_classfile({fname}) *jdtls.open_classfile*
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Open `jdt://` uri or decompile class contents and load them into the buffer
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nvim-jdtls by defaults configures a `BufReadCmd` event which uses this function.
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You shouldn't need to call this manually.
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@param uri string expected to be a `jdt://` uri
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Parameters: ~
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{fname} (string)
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M.set_runtime({runtime}) *jdtls.set_runtime*
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102
lua/jdtls.lua
102
lua/jdtls.lua
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@ -1092,77 +1092,61 @@ function M.jol(mode, classname)
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end
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--- Reads the uri into the current buffer
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---
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--- This requires at least one open buffer that is connected to the jdtls
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--- language server.
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--- Open `jdt://` uri or decompile class contents and load them into the buffer
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---
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--- nvim-jdtls by defaults configures a `BufReadCmd` event which uses this function.
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--- You shouldn't need to call this manually.
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---
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--- @param uri string expected to be a `jdt://` uri
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function M.open_jdt_link(uri)
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local client
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for _, c in ipairs(vim.lsp.get_active_clients()) do
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if c.config.init_options
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and c.config.init_options.extendedClientCapabilities
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and c.config.init_options.extendedClientCapabilities.classFileContentsSupport then
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client = c
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break
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---@param fname string
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function M.open_classfile(fname)
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local uri
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local use_cmd
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if vim.startswith(fname, "jdt://") then
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uri = fname
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use_cmd = false
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else
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uri = vim.uri_from_fname(fname)
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use_cmd = true
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if not vim.startswith(uri, "file://") then
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return
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end
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end
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assert(client, 'Must have a buffer open with a language client connected to eclipse.jdt.ls to load JDT URI')
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local buf = api.nvim_get_current_buf()
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local params = {
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uri = uri
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}
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local response = nil
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local cb = function(err, result)
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response = {err, result}
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end
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local ok, request_id = client.request('java/classFileContents', params, cb, buf)
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assert(ok, 'Request to `java/classFileContents` must succeed to open JDT URI. Client shutdown?')
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local timeout_ms = M.settings.jdt_uri_timeout_ms
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local wait_ok, reason = vim.wait(timeout_ms, function() return response end)
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local log_path = require('jdtls.path').join(vim.fn.stdpath('cache'), 'lsp.log')
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local buf_content
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if wait_ok and #response == 2 and response[2] then
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local content = response[2]
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if content == "" then
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buf_content = {
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'Received response from server, but it was empty. Check the log file for errors', log_path}
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else
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buf_content = vim.split(response[2], '\n', { plain = true })
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end
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else
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local error_msg
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if not wait_ok then
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client.cancel_request(request_id)
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local wait_failure = {
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[-1] = 'timeout';
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[-2] = 'interrupted';
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[-3] = 'error'
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}
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error_msg = wait_failure[reason]
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else
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error_msg = response[1]
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end
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buf_content = {
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'Failed to load content for uri',
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uri,
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'',
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'Error was: ',
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}
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vim.list_extend(buf_content, vim.split(vim.inspect(error_msg), '\n'))
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vim.list_extend(buf_content, {'', 'Check the log file for errors', log_path})
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end
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vim.bo[buf].modifiable = true
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vim.bo[buf].swapfile = false
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vim.bo[buf].buftype = 'nofile'
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api.nvim_buf_set_lines(buf, 0, -1, false, buf_content)
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-- This triggers FileType event which should fire up the lsp client if not already running
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vim.bo[buf].filetype = 'java'
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local timeout_ms = M.settings.jdt_uri_timeout_ms
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vim.wait(timeout_ms, function()
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return next(vim.lsp.get_active_clients({ name = "jdtls", bufnr = buf })) ~= nil
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end)
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local client = vim.lsp.get_active_clients({ name = "jdtls", bufnr = buf })[1]
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assert(client, 'Must have a `jdtls` client to load class file or jdt uri')
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local content
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local function handler(err, result)
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assert(not err, vim.inspect(err))
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content = result
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api.nvim_buf_set_lines(buf, 0, -1, false, vim.split(result, "\n", { plain = true }))
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vim.bo[buf].modifiable = false
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end
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if use_cmd then
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local command = {
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command = "java.decompile",
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arguments = { uri }
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}
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execute_command(command, handler)
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else
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local params = {
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uri = uri
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}
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client.request("java/classFileContents", params, handler, buf)
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end
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-- Need to block. Otherwise logic could run that sets the cursor to a position
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-- that's still missing.
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vim.wait(timeout_ms, function() return content ~= nil end)
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end
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@ -3,6 +3,7 @@ if exists('g:nvim_jdtls')
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endif
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let g:nvim_jdtls = 1
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au BufReadCmd jdt://* lua require('jdtls').open_jdt_link(vim.fn.expand('<amatch>'))
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au BufReadCmd jdt://* lua require('jdtls').open_classfile(vim.fn.expand('<amatch>'))
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au BufReadCmd *.class lua require("jdtls").open_classfile(vim.fn.expand("<amatch>"))
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command! JdtWipeDataAndRestart lua require('jdtls.setup').wipe_data_and_restart()
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command! JdtShowLogs lua require('jdtls.setup').show_logs()
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