Cross Platform Rust Repl
:help => print help
:reset => reset repl
:show => show repl current code (optionally depends on rustfmt to format output)
:add <dep_list> => add dependencies (requires cargo-edit) also it accepts most cargo-edit arguments
:type <expression> => shows the expression type, example :type vec!(5)
:time <expression> => return the amount of time the expression took to execute. example: :time 5+4 :time my_fun(arg1,arg2)
:time_release <expression> => same as time command but with release mode
:load => load a rust file into the repl
:reload => reload the last specified file
:pop => remove last repl code line
:del <line_num> => remove a specific line from repl code (line count starts at 1 from the first expression statement)
:edit <editor> => edit internal buffer using an external editor, example: :edit micro, Note that any edit made to $cache/irust/src/main_extern.rs file will be immediatly reflected on the repl (after saving)
:cd => change current working directory
:color <key> <value> => change token highlight color at runtime, for the token list and value representation check the Theme section, exp: :color function red :color macro #ff12ab :color reset
:toolchain <value> => switch between toolchains, supported value are: stable, beta, nighty
:check_statements true/false => If its set to true, irust will check each statemnt (input that ends with ;) with cargo_check before inserting it to the repl
:bench => run cargo bench
:: => run a shell command, example ::ls
You can use arrow keys to cycle through commands history
ctrl-l clear screen
ctrl-c clear line
ctrl-d exit if buffer is empty
ctrl-z [unix only] send IRust to the background
ctrl-r search history
ctrl-left/right jump through words
HOME/END go to line start / line end
Tab/ShiftTab cycle through auto-completion suggestions (requires racer)
Alt-Enter add line break
ctrl-e force evaluation
irust <path_to_file> starts irust with the specified file loaded into the repl
--help prints help message
--reset-config reset IRust configuration to default
IRust config file is located in:
Linux: /home/$USER/.config/irust/config
Win: C:\Users\$USER\AppData\Roaming/irust/config
Mac: /Users/$USER/Library/Preferences/irust/config
default config:
// history
add_irust_cmd_to_history = true
add_shell_cmd_to_history = false
// colors
ok_color = "Blue"
eval_color = "White"
irust_color = "DarkBlue"
irust_warn_color = "Cyan"
out_color = "Red"
shell_color = "DarkYellow"
err_color = "DarkRed"
input_color = "Green"
insert_color = "White"
welcome_msg = ""
welcome_color = "DarkBlue"
// racer
racer_inline_suggestion_color = "Cyan"
racer_suggestions_table_color = "Green"
racer_selected_suggestion_color = "DarkRed"
racer_max_suggestions = 5
enable_racer = true
// other
first_irust_run = false
toolchain = "stable"
check_statements = true
Since release 0.8.9 IRust can now parse a theme file located on $config_dir/irust/theme and use it for the highlighting colors.
Colors can be specified as names ("red") or as hex representation ("#ff12ab").
Default theme file:
keyword = "magenta"
keyword2 = "dark_red"
function = "blue"
type = "cyan"
number = "dark_yellow"
symbol = "red"
macro = "dark_yellow"
string_literal = "yellow"
character = "green"
lifetime = "dark_magenta"
comment = "dark_grey"
const = "dark_green"
x = "white"
Automatic releases by github actions are uploaded here https://github.com/sigmaSd/irust/releases
cargo b --release
1- Why is autocompletion not working
-> you need racer installed and configured correctly
cargo +nightly install racer
rustup component add rust-src
