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### DISCLAIMER > As of 6th March 2025, debugger is still in development. We plan to merge it behind a staff-only feature flag for staff use only, followed by non-public release and then finally a public one (akin to how Git panel release was handled). This is done to ensure the best experience when it gets released. ### END OF DISCLAIMER **The current state of the debugger implementation:** https://github.com/user-attachments/assets/c4deff07-80dd-4dc6-ad2e-0c252a478fe9 https://github.com/user-attachments/assets/e1ed2345-b750-4bb6-9c97-50961b76904f ---- All the todo's are in the following channel, so it's easier to work on this together: https://zed.dev/channel/zed-debugger-11370 If you are on Linux, you can use the following command to join the channel: ```cli zed https://zed.dev/channel/zed-debugger-11370 ``` ## Current Features - Collab - Breakpoints - Sync when you (re)join a project - Sync when you add/remove a breakpoint - Sync active debug line - Stack frames - Click on stack frame - View variables that belong to the stack frame - Visit the source file - Restart stack frame (if adapter supports this) - Variables - Loaded sources - Modules - Controls - Continue - Step back - Stepping granularity (configurable) - Step into - Stepping granularity (configurable) - Step over - Stepping granularity (configurable) - Step out - Stepping granularity (configurable) - Debug console - Breakpoints - Log breakpoints - line breakpoints - Persistent between zed sessions (configurable) - Multi buffer support - Toggle disable/enable all breakpoints - Stack frames - Click on stack frame - View variables that belong to the stack frame - Visit the source file - Show collapsed stack frames - Restart stack frame (if adapter supports this) - Loaded sources - View all used loaded sources if supported by adapter. - Modules - View all used modules (if adapter supports this) - Variables - Copy value - Copy name - Copy memory reference - Set value (if adapter supports this) - keyboard navigation - Debug Console - See logs - View output that was sent from debug adapter - Output grouping - Evaluate code - Updates the variable list - Auto completion - If not supported by adapter, we will show auto-completion for existing variables - Debug Terminal - Run custom commands and change env values right inside your Zed terminal - Attach to process (if adapter supports this) - Process picker - Controls - Continue - Step back - Stepping granularity (configurable) - Step into - Stepping granularity (configurable) - Step over - Stepping granularity (configurable) - Step out - Stepping granularity (configurable) - Disconnect - Restart - Stop - Warning when a debug session exited without hitting any breakpoint - Debug view to see Adapter/RPC log messages - Testing - Fake debug adapter - Fake requests & events --- Release Notes: - N/A --------- Co-authored-by: Piotr Osiewicz <24362066+osiewicz@users.noreply.github.com> Co-authored-by: Anthony Eid <hello@anthonyeid.me> Co-authored-by: Anthony <anthony@zed.dev> Co-authored-by: Piotr Osiewicz <peterosiewicz@gmail.com> Co-authored-by: Piotr <piotr@zed.dev> |
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Design notes:
This crate is split into two conceptual halves:
- The terminal.rs file and the src/mappings/ folder, these contain the code for interacting with Alacritty and maintaining the pty event loop. Some behavior in this file is constrained by terminal protocols and standards. The Zed init function is also placed here.
- Everything else. These other files integrate the
Terminalstruct created in terminal.rs into the rest of GPUI. The main entry point for GPUI is the terminal_view.rs file and the modal.rs file.
ttys are created externally, and so can fail in unexpected ways. However, GPUI currently does not have an API for models than can fail to instantiate. TerminalBuilder solves this by using Rust's type system to split tty instantiation into a 2 step process: first attempt to create the file handles with TerminalBuilder::new(), check the result, then call TerminalBuilder::subscribe(cx) from within a model context.
The TerminalView struct abstracts over failed and successful terminals, passing focus through to the associated view and allowing clients to build a terminal without worrying about errors.
#Input
There are currently many distinct paths for getting keystrokes to the terminal:
-
Terminal specific characters and bindings. Things like ctrl-a mapping to ASCII control character 1, ANSI escape codes associated with the function keys, etc. These are caught with a raw key-down handler in the element and are processed immediately. This is done with the
try_keystroke()method on Terminal -
GPU Action handlers. GPUI clobbers a few vital keys by adding bindings to them in the global context. These keys are synthesized and then dispatched through the same
try_keystroke()API as the above mappings -
IME text. When the special character mappings fail, we pass the keystroke back to GPUI to hand it to the IME system. This comes back to us in the
View::replace_text_in_range()method, and we then send that to the terminal directly, bypassingtry_keystroke(). -
Pasted text has a separate pathway.
Generally, there's a distinction between 'keystrokes that need to be mapped' and 'strings which need to be written'. I've attempted to unify these under the '.try_keystroke()' API and the .input() API (which try_keystroke uses) so we have consistent input handling across the terminal