Minor cleanups in prep for refactor

[kaidokert]

Summary by Sourcery

Clean up and streamline test code and formatting across the picojson crate in preparation for an upcoming refactor

Enhancements:

• Move EventToken and State imports to the top of their respective test modules and remove redundant per-test imports
• Remove leftover debug println from stream_buffer tests
• Adjust indentation in stream_parser escape handling loop for consistency

Summary by CodeRabbit

• Style

  • Cleaned up import statements and improved code indentation in test modules and internal methods.
  • Removed unnecessary debug print statements from tests.

• Chores

  • Refactored test modules for better organization and readability without affecting functionality.

[sourcery-ai]

Reviewer's Guide

This PR streamlines test modules by consolidating imports, removes an extraneous debug print, and tidies indentation in the escape handling loop.

File-Level Changes

Change	Details	Files
Consolidate test imports at the module level and remove redundant per-test imports	Add use crate::ujson::EventToken at the top of the escape_processor tests module Remove duplicate use crate::ujson::EventToken lines from individual escape tests Add use crate::shared::State at the top of the stream_buffer tests module Remove redundant use crate::shared::State lines from individual buffer tests	picojson/src/escape_processor.rs picojson/src/stream_buffer.rs
Remove debug logging from stream_buffer tests	Delete the println! call inside the string start position test	picojson/src/stream_buffer.rs
Fix indentation for the escape handling loop in the parser	Reindent the for &byte in valid_bytes loop under the if let Some(valid_bytes) block to match surrounding code	picojson/src/stream_parser.rs

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[coderabbitai]

Walkthrough

The updates focus on code cleanup in test modules and minor formatting improvements. Redundant imports are consolidated or removed in test modules of escape_processor.rs and stream_buffer.rs, and a debug print statement is deleted. In stream_parser.rs, indentation is corrected in a loop for better code readability. No functional or public API changes are introduced.

Changes

File(s)	Change Summary
picojson/src/escape_processor.rs	Consolidated redundant imports in test module; no logic or functional changes.
picojson/src/stream_buffer.rs	Cleaned up imports in test module and removed a debug print statement; no logic changes.
picojson/src/stream_parser.rs	Fixed indentation in a loop within a method for improved readability; no logic changes.

Poem

A tidy warren, neat and bright,
Imports trimmed and code just right.
No prints to clutter, loops aligned,
In burrows deep, clean code we find.
🐇✨

Warning

There were issues while running some tools. Please review the errors and either fix the tool's configuration or disable the tool if it's a critical failure.

🔧 Clippy (1.86.0)

Updating crates.io index

warning: failed to write cache, path: /usr/local/registry/index/index.crates.io-1949cf8c6b5b557f/.cache/pa/st/paste, error: Permission denied (os error 13)
Locking 106 packages to latest compatible versions
Adding ureq v2.12.1 (available: v3.0.12)
Adding zip v0.6.6 (available: v4.3.0)
Compiling picojson v0.1.5 (/picojson)
error: linker cc not found
|
= note: No such file or directory (os error 2)

error: could not compile picojson (build script) due to 1 previous error

---

📜 Recent review details

Configuration used: CodeRabbit UI
Review profile: CHILL
Plan: Pro

📥 Commits

Reviewing files that changed from the base of the PR and between 1dbca31 and 14f9b8f.

📒 Files selected for processing (3)

• picojson/src/escape_processor.rs (1 hunks)
• picojson/src/stream_buffer.rs (1 hunks)
• picojson/src/stream_parser.rs (1 hunks)

🧰 Additional context used

🧠 Learnings (3)

picojson/src/escape_processor.rs (7)

Learnt from: kaidokert
PR: kaidokert/picojson-rs#5
File: picojson/src/lib.rs:0-0
Timestamp: 2025-06-29T17:48:18.198Z
Learning: In the picojson-rs project, the `use tokenizer as ujson;` alias in lib.rs is a transitionary and fully internal private alias used during crate reorganization. Examples and external code no longer depend on this alias, making the private visibility appropriate.

Learnt from: kaidokert
PR: kaidokert/picojson-rs#1
File: stax/src/lib.rs:19-21
Timestamp: 2025-06-28T18:14:22.871Z
Learning: In Rust crate organization, functions can be imported into lib.rs via `use` statements not for direct usage within lib.rs itself, but to make them available to other modules within the same crate via the `crate::` path. This is a valid pattern and such imports should not be flagged as unused even if lib.rs doesn't directly call them.

Learnt from: kaidokert
PR: kaidokert/picojson-rs#55
File: picojson/src/event_processor.rs:188-203
Timestamp: 2025-07-13T05:06:50.688Z
Learning: In picojson-rs event_processor module, the tokenizer callback intentionally uses a fixed-size array of 2 slots and silently drops events when full. This is deliberate design for embedded/constrained environments requiring: zero-allocation guarantee, panic-free operation, deterministic memory usage, and fixed memory footprint. The array size of 2 is sufficient for ujson's event generation patterns when processed in tight loops.

Learnt from: kaidokert
PR: kaidokert/picojson-rs#1
File: stax/src/flex_parser.rs:0-0
Timestamp: 2025-06-28T18:12:30.015Z
Learning: In the stax JSON parser codebase, EscapeSequence event handlers exist in flex_parser.rs not because they're needed by that parser variant, but to avoid catch-all patterns in match statements. The flex parser doesn't need to process EscapeSequence events, but the other parser variant (direct parser) does need them.

Learnt from: kaidokert
PR: kaidokert/picojson-rs#1
File: tokenizer/src/bitstack/mod.rs:0-0
Timestamp: 2025-06-28T23:43:22.783Z
Learning: In the picojson-rs project, the BitStack trait was redesigned to return bool instead of Option<bool> for pop() and top() methods. Empty stacks return false rather than None, which simplifies the API and avoids Option handling.

Learnt from: kaidokert
PR: kaidokert/picojson-rs#55
File: picojson/src/slice_parser.rs:0-0
Timestamp: 2025-07-13T05:10:01.847Z
Learning: In picojson-rs event processing, the SliceParser uses an if/else pattern with process_simple_events() first, then process_begin_events() as fallback. Both branches use identical match statements for all EventResult variants for consistency and maintainability, even though process_begin_events() only returns Continue or None while process_simple_events() can return all variants.

Learnt from: kaidokert
PR: kaidokert/picojson-rs#44
File: picojson/src/chunk_reader.rs:28-33
Timestamp: 2025-07-07T01:39:55.177Z
Learning: The PullParser trait in picojson-rs provides both next() and next_event() methods. The next() method is an iterator-like convenience method that returns Option<Result<Event, ParseError>>, returning None when EndDocument is reached. The next_event() method returns Result<Event, ParseError> directly. Both methods are valid and the choice depends on whether you want iterator-style usage (next) or direct result handling (next_event).

picojson/src/stream_parser.rs (4)

Learnt from: kaidokert
PR: kaidokert/picojson-rs#1
File: stax/src/flex_parser.rs:0-0
Timestamp: 2025-06-28T18:12:30.015Z
Learning: In the stax JSON parser codebase, EscapeSequence event handlers exist in flex_parser.rs not because they're needed by that parser variant, but to avoid catch-all patterns in match statements. The flex parser doesn't need to process EscapeSequence events, but the other parser variant (direct parser) does need them.

Learnt from: kaidokert
PR: kaidokert/picojson-rs#5
File: picojson/src/lib.rs:0-0
Timestamp: 2025-06-29T17:48:18.198Z
Learning: In the picojson-rs project, the `use tokenizer as ujson;` alias in lib.rs is a transitionary and fully internal private alias used during crate reorganization. Examples and external code no longer depend on this alias, making the private visibility appropriate.

Learnt from: kaidokert
PR: kaidokert/picojson-rs#55
File: picojson/src/slice_parser.rs:0-0
Timestamp: 2025-07-13T05:10:01.847Z
Learning: In picojson-rs event processing, the SliceParser uses an if/else pattern with process_simple_events() first, then process_begin_events() as fallback. Both branches use identical match statements for all EventResult variants for consistency and maintainability, even though process_begin_events() only returns Continue or None while process_simple_events() can return all variants.

Learnt from: kaidokert
PR: kaidokert/picojson-rs#55
File: picojson/src/event_processor.rs:188-203
Timestamp: 2025-07-13T05:06:50.688Z
Learning: In picojson-rs event_processor module, the tokenizer callback intentionally uses a fixed-size array of 2 slots and silently drops events when full. This is deliberate design for embedded/constrained environments requiring: zero-allocation guarantee, panic-free operation, deterministic memory usage, and fixed memory footprint. The array size of 2 is sufficient for ujson's event generation patterns when processed in tight loops.

picojson/src/stream_buffer.rs (4)

Learnt from: kaidokert
PR: kaidokert/picojson-rs#5
File: picojson/src/lib.rs:0-0
Timestamp: 2025-06-29T17:48:18.198Z
Learning: In the picojson-rs project, the `use tokenizer as ujson;` alias in lib.rs is a transitionary and fully internal private alias used during crate reorganization. Examples and external code no longer depend on this alias, making the private visibility appropriate.

Learnt from: kaidokert
PR: kaidokert/picojson-rs#1
File: tokenizer/src/bitstack/mod.rs:0-0
Timestamp: 2025-06-28T23:43:22.783Z
Learning: In the picojson-rs project, the BitStack trait was redesigned to return bool instead of Option<bool> for pop() and top() methods. Empty stacks return false rather than None, which simplifies the API and avoids Option handling.

Learnt from: kaidokert
PR: kaidokert/picojson-rs#55
File: picojson/src/event_processor.rs:188-203
Timestamp: 2025-07-13T05:06:50.688Z
Learning: In picojson-rs event_processor module, the tokenizer callback intentionally uses a fixed-size array of 2 slots and silently drops events when full. This is deliberate design for embedded/constrained environments requiring: zero-allocation guarantee, panic-free operation, deterministic memory usage, and fixed memory footprint. The array size of 2 is sufficient for ujson's event generation patterns when processed in tight loops.

Learnt from: kaidokert
PR: kaidokert/picojson-rs#1
File: stax/src/flex_parser.rs:0-0
Timestamp: 2025-06-28T18:12:30.015Z
Learning: In the stax JSON parser codebase, EscapeSequence event handlers exist in flex_parser.rs not because they're needed by that parser variant, but to avoid catch-all patterns in match statements. The flex parser doesn't need to process EscapeSequence events, but the other parser variant (direct parser) does need them.

🔇 Additional comments (3)

picojson/src/escape_processor.rs (1)

274-274: Import consolidation for tests is spot-on

Centralizing the EventToken import at the module level removes duplication across the individual test functions and keeps the test code tidy. No further action needed.

picojson/src/stream_parser.rs (1)

581-586: Loop correctly scoped inside the if let guard

Moving the for-loop under the if let Some(valid_bytes) block eliminates the risk of using valid_bytes out of scope and prevents a potential compile error. The fix is precise and maintains the intended behaviour.

picojson/src/stream_buffer.rs (1)

271-271: Consolidated State import—good cleanup

Moving the use crate::shared::State; declaration to the top of the tests module removes redundant per-test imports and keeps dependencies visible in one place.

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[gemini-code-assist]

Summary of Changes

Hello @kaidokert, I'm Gemini Code Assist¹! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed!

This pull request contains minor code hygiene improvements and cleanups across several Rust source files. These changes are preparatory steps, aiming to improve code readability and consistency before a larger refactoring effort, as indicated by the PR title.

Highlights

• Code Style & Imports: I've consolidated use statements within test modules, moving them from function scope to module scope for better organization and adherence to common Rust practices. This affects escape_processor.rs and stream_buffer.rs.
• Debugging Artifact Removal: I've removed a println! debug statement from stream_buffer.rs that was no longer needed, cleaning up the test code.
• Formatting Consistency: I've applied minor indentation fixes in stream_parser.rs to improve code readability and maintain consistent formatting.

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[sourcery-ai]

Hey @kaidokert - I've reviewed your changes and they look great!

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[gemini-code-assist]

Code Review

This pull request consists of minor cleanups to improve code quality and prepare for future refactoring. The changes include moving use statements to the module scope, removing a debug println! macro, and fixing code indentation. All these changes are well-aligned with standard Rust practices and improve the overall readability and maintainability of the code. The changes look good and I have no further suggestions.