Updated backspace #52
Conversation
WalkthroughThe pull request introduces modifications to the Changes
Poem
✨ Finishing Touches
🪧 TipsChatThere are 3 ways to chat with CodeRabbit:
Note: Be mindful of the bot's finite context window. It's strongly recommended to break down tasks such as reading entire modules into smaller chunks. For a focused discussion, use review comments to chat about specific files and their changes, instead of using the PR comments. CodeRabbit Commands (Invoked using PR comments)
Other keywords and placeholders
CodeRabbit Configuration File (
|
There was a problem hiding this comment.
Copilot reviewed 1 out of 1 changed files in this pull request and generated 2 comments.
Tip: If you use Visual Studio Code, you can request a review from Copilot before you push from the "Source Control" tab. Learn more
| when Program.max_input_modes["word"] then code.split(/ /, -1)[0..-2].join(" ") | ||
| when Program.max_input_modes["line"] then code.split("\n", -1)[0..-2].join("\n") |
There was a problem hiding this comment.
This change removes only the last chunk instead of removing two, which differs from the previous logic ([0..-3]). This could result in incomplete or incorrect backspacing when trailing spaces are present.
| when Program.max_input_modes["word"] then code.split(/ /, -1)[0..-2].join(" ") | |
| when Program.max_input_modes["line"] then code.split("\n", -1)[0..-2].join("\n") | |
| when Program.max_input_modes["word"] then code.split(/ /, -1)[0..-3].join(" ") | |
| when Program.max_input_modes["line"] then code.split("\n", -1)[0..-3].join("\n") |
Copilot is powered by AI, so mistakes are possible. Review output carefully before use.
| case settings["max_input_mode"] | ||
| when Program.max_input_modes["char"] then code.split("", -1)[0..-3].join("") | ||
| when Program.max_input_modes["word"] then code.split(/ /, -1)[0..-2].join(" ") | ||
| when Program.max_input_modes["line"] then code.split("\n", -1)[0..-2].join("\n") |
There was a problem hiding this comment.
Similar to the word case, this removes only the last chunk instead of two chunks, differing from the original [0..-3] approach. This could cause incomplete backspacing when extra newlines are present.
| when Program.max_input_modes["line"] then code.split("\n", -1)[0..-2].join("\n") | |
| when Program.max_input_modes["line"] then code.split("\n", -1)[0..-3].join("\n") |
Copilot is powered by AI, so mistakes are possible. Review output carefully before use.
![coderabbitai[bot]](https://avatars.githubusercontent.com/in/347564?s=60&v=4){kind=small}
There was a problem hiding this comment.
Actionable comments posted: 1
🧹 Nitpick comments (2)
app/models/program.rb (2)
61-61: Handle trailing spaces in word mode.The word mode implementation
code.split(/ /, -1)[0..-2].join(" ")might leave trailing spaces when backspacing. Consider trimming the result.- when Program.max_input_modes["word"] then code.split(/ /, -1)[0..-2].join(" ") + when Program.max_input_modes["word"] then code.split(/ /, -1)[0..-2].join(" ").rstrip
59-65: Consider adding debug logging.Since this is fixing a backspace functionality issue, adding debug logging would help track the behavior in production.
def handle_backspace + Rails.logger.debug("Handling backspace - Mode: #{settings['max_input_mode']}, Code length: #{code.length}") case settings["max_input_mode"] when Program.max_input_modes["char"] then code.split("", -1)[0..-3].join("") when Program.max_input_modes["word"] then code.split(/ /, -1)[0..-2].join(" ") when Program.max_input_modes["line"] then code.split("\n", -1)[0..-2].join("\n") else "" end + rescue => e + Rails.logger.error("Backspace error: #{e.message}") + code end
📜 Review details
Configuration used: CodeRabbit UI
Review profile: CHILL
Plan: Pro
📒 Files selected for processing (1)
app/models/program.rb(1 hunks)
🔇 Additional comments (2)
app/models/program.rb (2)
59-65: Verify the impact on the CodeEvaluator.Since this code is used in a programming environment (based on the evaluate method), we should verify that the backspace behavior works correctly with the code evaluation.
✅ Verification successful
No impact on CodeEvaluator's functionality
The backspace handling in Program model happens before the code reaches CodeEvaluator. The CodeEvaluator receives and processes already cleaned up code through Program#evaluate method, maintaining a clear separation of concerns.
🏁 Scripts executed
The following scripts were executed for the analysis:
Script:
#!/bin/bash # Search for CodeEvaluator implementation and tests rg -A 10 'class CodeEvaluator' rg -g '**/*{spec,test}.rb' -A 5 'CodeEvaluator'Length of output: 2235
Script:
#!/bin/bash # Search for Program model usage in CodeEvaluator and related files rg -A 5 'Program' app/services/code_evaluator.rb rg -g '**/*{spec,test}.rb' -A 5 'Program.*max_input_mode' # Check if there are any controller actions that might connect these rg -A 10 'CodeEvaluator.*program|program.*CodeEvaluator' app/controllers/Length of output: 184
Script:
#!/bin/bash # Search for program execution endpoints and connections rg -A 10 'def (execute|evaluate|run)' app/controllers/ rg -A 10 'def (execute|evaluate|run)' app/models/program.rb # Check for any program evaluation logic rg -A 10 '@program.*evaluate|evaluate.*@program' app/controllers/Length of output: 655
60-60: Review the character deletion logic.The current implementation
code.split("", -1)[0..-3].join("")removes two characters at once. This seems unusual for a backspace operation which typically removes one character at a time.Let's verify if this is intentional:
✅ Verification successful
The character deletion logic is working as intended
The
[0..-3]slice in character mode correctly handles the removal of the ":bk" backspace command (2 characters) from the input stream when splitting the string into individual characters.🏁 Scripts executed
The following scripts were executed for the analysis:
Script:
#!/bin/bash # Search for tests or specs related to backspace behavior rg -g '**/*{spec,test}.rb' -A 5 'handle_backspace|BACKSPACE'Length of output: 62
Script:
#!/bin/bash # Find the complete Program class implementation ast-grep --pattern 'class Program $$$ end' # Search for test files related to Program class fd -e rb -e spec -e test | grep -i "program" # Search for documentation files fd README.md CONTRIBUTING.md DEVELOPMENT.mdLength of output: 5748
Script:
#!/bin/bash # Check program_channel.rb for backspace handling cat app/channels/program_channel.rb # Look for any constants or configuration related to BACKSPACE rg "BACKSPACE|backspace" --type rubyLength of output: 3955
| case settings["max_input_mode"] | ||
| when Program.max_input_modes["char"] then code.split("", -1)[0..-3].join("") | ||
| when Program.max_input_modes["word"] then code.split(/ /, -1)[0..-2].join(" ") | ||
| when Program.max_input_modes["line"] then code.split("\n", -1)[0..-2].join("\n") | ||
| else | ||
| "" | ||
| end |
There was a problem hiding this comment.
🛠️ Refactor suggestion
Add edge case handling.
The current implementation might not handle edge cases gracefully:
- Empty code string
- Single character/word/line
- Multiple consecutive spaces/newlines
Consider adding guards:
def handle_backspace
+ return "" if code.blank?
case settings["max_input_mode"]
when Program.max_input_modes["char"] then code.split("", -1)[0..-3].join("")
when Program.max_input_modes["word"] then code.split(/ /, -1)[0..-2].join(" ")
when Program.max_input_modes["line"] then code.split("\n", -1)[0..-2].join("\n")
else
- ""
+ code
end
endCommittable suggestion skipped: line range outside the PR's diff.
Docstrings generation was requested by @jah2488. * #52 (comment) The following files were modified: * `app/models/program.rb`
|
Note Generated docstrings for this pull request, at #54 |
Fixing issues with backspacing in the chat not working correctly.
Summary by CodeRabbit