feat(commands): Rustc unpretty args[]

CHANGELOG.md

@@ -6,6 +6,29 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [4.1.0] - 2024-01-29
+
+### Added
+
+- `:Rustc unpretty` command:
+  Use `rustc -Z unpretty=[mir|hir|...]` to inspect mir and other things,
+  and achieve an experience similar to Rust Playground.
+  (currently requires a nightly compiler).
+  Thanks [saying121](https://github.com/saying121)!
+- Config: `tools.rustc_unpretty` arguments for `rustc`.
+
+### Changed
+
+- Improved command completions.
+  - Filter suggested subcommand arguments based on existing user input.
+  - When calling, `:RustLsp!`, show only subcommands that change
+    behaviour with a bang.
+
+### Fixed
+
+- Command completions: Removed completions
+  for `runnables/debuggables last`.
+
 ## [4.0.3] - 2024-01-28
 
 ### Fixed

README.md

@@ -68,6 +68,9 @@
   or [`codelldb`](https://github.com/vadimcn/codelldb))
   and [`nvim-dap`](https://github.com/mfussenegger/nvim-dap),
   required for debugging.
+- A tree-sitter parser for Rust (required for the `:Rustc unpretty` command).
+  Can be installed using [nvim-treesitter](https://github.com/nvim-treesitter/nvim-treesitter),
+  which also provides highlights, etc.
 
 ## Installation
 
@@ -491,6 +494,26 @@ vim.keymap.set(
   vim.cmd.RustLsp { 'view', 'hir' }
   vim.cmd.RustLsp { 'view', 'mir' }
   ```
+<details>
+  <summary>
+	<b>Rustc Unpretty</b>
+  </summary>
+
+  Opens a buffer with a textual representation of the MIR or others things,
+  of the function closest to the cursor.
+  Achieves an experience similar to Rust Playground.
+
+  NOTE: This currently requires a tree-sitter parser for Rust,
+  and a nightly compiler toolchain.
+
+  ```vimscript
+  :Rustc unpretty [hir|mir|...]
+  ```
+  ```lua
+  vim.cmd.Rustc { 'unpretty', 'hir' }
+  vim.cmd.Rustc { 'unpretty', 'mir' }
+  -- ...
+  ```
 </details>
 
 <!-- markdownlint-restore -->

doc/rustaceanvim.txt

@@ -53,6 +53,15 @@ It accepts the following subcommands:
               Defaults to `flyCheck run` if called without an argument.
  `logFile` - Open the rust-analyzer log file.
 
+The `:Rustc` command can be used to interact with rustc.
+It accepts the following subcommands:
+
+ `unpretty args[]` - Opens a buffer with a textual representation of the MIR or others things,
+                     of the function closest to the cursor.
+                     Achieves an experience similar to Rust Playground.
+                     NOTE: This currently requires a tree-sitter parser for Rust,
+                     and a nightly compiler toolchain.
+
 ==============================================================================
 plugin configuration                                       *rustaceanvim.config*
 
@@ -117,6 +126,7 @@ RustaceanToolsOpts                                          *RustaceanToolsOpts*
         {float_win_config?}                  (table)                                      Options applied to floating windows. See |api-win_config|.
         {create_graph?}                      (RustaceanCrateGraphConfig)                  Options for showing the crate graph based on graphviz and the dot
         {open_url?}                          (fun(url:string):nil)                        If set, overrides how to open URLs
+        {rustc?}                             (RustcOpts)                                  Options for `rustc`
 
 
 RustaceanHoverActionsOpts                            *RustaceanHoverActionsOpts*
@@ -152,6 +162,12 @@ RustaceanCrateGraphConfig                            *RustaceanCrateGraphConfig*
         {pipe?}                       (string)    Overide the pipe symbol in the shell command. Useful if using a shell that is not supported by this plugin.
 
 
+RustcOpts                                                            *RustcOpts*
+
+    Fields: ~
+        {edition}  (string)  The edition to use. See https://rustc-dev-guide.rust-lang.org/guides/editions.html. Default '2021'.
+
+
 RustaceanLspClientOpts                                  *RustaceanLspClientOpts*
 
     Fields: ~

ftplugin/rust.lua

@@ -8,7 +8,7 @@ local config = require('rustaceanvim.config.internal')
 local types = require('rustaceanvim.types.internal')
 local lsp = require('rustaceanvim.lsp')
 
-if not vim.g.did_rustaceanvim_setup_commands then
+if not vim.g.did_rustaceanvim_initialize then
   vim.lsp.commands['rust-analyzer.runSingle'] = function(command)
     local runnables = require('rustaceanvim.runnables')
     local cached_commands = require('rustaceanvim.cached_commands')
@@ -36,9 +36,12 @@ if not vim.g.did_rustaceanvim_setup_commands then
     local rt_dap = require('rustaceanvim.dap')
     rt_dap.start(args)
   end
+
+  local commands = require('rustaceanvim.commands')
+  commands.create_rustc_command()
 end
 
-vim.g.did_rustaceanvim_setup_commands = true
+vim.g.did_rustaceanvim_initialize = true
 
 local auto_attach = types.evaluate(config.server.auto_attach)