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[JULES] Scheduled Maintenance: Consolidate Pattern Extraction - #526

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jules-refactor-pattern-expect-4999034163852161112
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[JULES] Scheduled Maintenance: Consolidate Pattern Extraction#526
logbie wants to merge 1 commit into
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jules-refactor-pattern-expect-4999034163852161112

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@logbie

@logbie logbie commented May 28, 2026

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Summary of Changes

  • The Issue: Manual extraction of Value::Pattern into Rc<CompiledPattern> was duplicated across multiple pattern matching native functions (pattern_matches_native, pattern_find_native, pattern_find_all_native, native_pattern_replace, and native_pattern_split) in src/stdlib/pattern.rs. Argument counting was also manually performed in many of these functions.
  • The Rational: Reduced binary size, improved maintainability, reduced duplicated boilerplate code, and made error messages more consistent.
  • The Solution: Added a new expect_pattern macro helper to src/stdlib/helpers.rs using generate_expect!. Refactored src/stdlib/pattern.rs native functions to utilize check_arg_count, expect_text, and the new expect_pattern helper. Updated tests to reflect the standardized error messages produced by these helpers.

Verification Checklist

  • cargo fmt executed and passed.
  • cargo clippy returned no warnings or errors.
  • All cargo test suites passed (100% success rate).

PR created automatically by Jules for task 4999034163852161112 started by @logbie


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Summary by CodeRabbit

  • Bug Fixes

    • Improved API token prompt handling during interactive login.
  • Improvements

    • Standardized error messages for pattern matching functions to provide consistent feedback.

Review Change Stack

Co-authored-by: logbie <1138960+logbie@users.noreply.github.com>
@google-labs-jules

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Copilot AI review requested due to automatic review settings May 28, 2026 09:06
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coderabbitai Bot commented May 28, 2026

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No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info
⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro

Run ID: acbe591a-d4cb-46f0-b249-d011dbd0d599

📥 Commits

Reviewing files that changed from the base of the PR and between 8ed9ab7 and a5385d9.

📒 Files selected for processing (5)
  • crates/wflpkg/src/commands/login.rs
  • pr_body.md
  • src/stdlib/helpers.rs
  • src/stdlib/pattern.rs
  • src/stdlib/pattern_test.rs

📝 Walkthrough

Walkthrough

This PR refactors stdlib pattern-matching functions to use centralized helpers (expect_pattern, check_arg_count, expect_text) for argument validation and type extraction, eliminating repeated boilerplate. Tests are updated to match standardized error messages. An unrelated password prompt adjustment is also included.

Changes

Pattern Helper Refactoring

Layer / File(s) Summary
Add expect_pattern helper extractor
src/stdlib/helpers.rs
New expect_pattern function via generate_expect! macro validates Value::Pattern and returns Rc<CompiledPattern>, consistent with other extractor helpers.
Refactor pattern.rs native functions and update test assertions
src/stdlib/pattern.rs, src/stdlib/pattern_test.rs
Five native functions (pattern_matches_native, pattern_find_native, pattern_find_all_native, native_pattern_replace, native_pattern_split) replace manual argument/type checks with shared helpers. Core logic and output shapes preserved. Three tests update error-message substring assertions to match standardized wording.

Estimated Code Review Effort

🎯 2 (Simple) | ⏱️ ~12 minutes

Possibly Related PRs

  • WebFirstLanguage/wfl#427: Introduces the generate_expect! macro pattern used to create the new expect_pattern helper.
  • WebFirstLanguage/wfl#310: Refactors other stdlib modules to use centralized extractors from helpers.rs, following the same consolidation pattern.
  • WebFirstLanguage/wfl#428: Overlaps on pattern function registration wiring in src/stdlib/pattern.rs.

Poem

🐰 Patterns once tangled, now untangled bright,
Extract and validate with helpers tight!
One source of truth, no boilerplate pain,
The refactored stdlib flows like rain.

🚥 Pre-merge checks | ✅ 5
✅ Passed checks (5 passed)
Check name Status Explanation
Description Check ✅ Passed Check skipped - CodeRabbit’s high-level summary is enabled.
Title check ✅ Passed The title accurately captures the main change: consolidating pattern extraction logic across native pattern functions by introducing a shared helper macro.
Docstring Coverage ✅ Passed Docstring coverage is 100.00% which is sufficient. The required threshold is 80.00%.
Linked Issues check ✅ Passed Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check ✅ Passed Check skipped because no linked issues were found for this pull request.

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✨ Finishing Touches
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🧪 Generate unit tests (beta)
  • Create PR with unit tests
  • Commit unit tests in branch jules-refactor-pattern-expect-4999034163852161112

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✅ Devin Review: No Issues Found

Devin Review analyzed this PR and found no potential bugs to report.

View in Devin Review to see 3 additional findings.

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Pull request overview

Consolidates duplicated argument-count and Value::Pattern/Value::Text extraction logic in src/stdlib/pattern.rs by routing all five pattern native functions through the shared check_arg_count, expect_text, and a newly added expect_pattern helper, and updates tests to the new standardized error message wording. The PR also includes two unrelated changes: switching rpassword::prompt_password_stdout to rpassword::prompt_password in wflpkg's login command, and committing a pr_body.md file containing the PR description.

Changes:

  • Add expect_pattern helper via generate_expect! in src/stdlib/helpers.rs.
  • Refactor pattern_matches_native, pattern_find_native, pattern_find_all_native, native_pattern_replace, and native_pattern_split to use the shared helpers, and update pattern_test.rs error-message assertions.
  • Unrelated: replace deprecated prompt_password_stdout with prompt_password in crates/wflpkg/src/commands/login.rs, and add a new pr_body.md file.

Reviewed changes

Copilot reviewed 5 out of 5 changed files in this pull request and generated 5 comments.

Show a summary per file
File Description
src/stdlib/helpers.rs Adds expect_pattern helper using generate_expect! for Value::Pattern.
src/stdlib/pattern.rs Replaces manual arg-count and match extraction with check_arg_count/expect_text/expect_pattern; line/column are re-stamped for replace/split.
src/stdlib/pattern_test.rs Updates error-message expectations to match standardized helper wording.
crates/wflpkg/src/commands/login.rs Unrelated change from prompt_password_stdout to prompt_password.
pr_body.md New file containing the PR description; appears to be accidentally committed.

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Comment thread pr_body.md
Comment on lines +1 to +11
#### **Summary of Changes**

* **The Issue:** Manual extraction of `Value::Pattern` into `Rc<CompiledPattern>` was duplicated across multiple pattern matching native functions (`pattern_matches_native`, `pattern_find_native`, `pattern_find_all_native`, `native_pattern_replace`, and `native_pattern_split`) in `src/stdlib/pattern.rs`. Argument counting was also manually performed in many of these functions.
* **The Rational:** Reduced binary size, improved maintainability, reduced duplicated boilerplate code, and made error messages more consistent.
* **The Solution:** Added a new `expect_pattern` macro helper to `src/stdlib/helpers.rs` using `generate_expect!`. Refactored `src/stdlib/pattern.rs` native functions to utilize `check_arg_count`, `expect_text`, and the new `expect_pattern` helper. Updated tests to reflect the standardized error messages produced by these helpers.

#### **Verification Checklist**

* [x] `cargo fmt` executed and passed.
* [x] `cargo clippy` returned no warnings or errors.
* [x] All `cargo test` suites passed (100% success rate).
/// Default token reader that uses rpassword to hide input.
fn default_token_reader(prompt: &str) -> Result<String, PackageError> {
rpassword::prompt_password_stdout(prompt)
rpassword::prompt_password(prompt)
Comment thread src/stdlib/pattern.rs
Comment on lines 120 to +153
@@ -240,35 +142,15 @@ pub fn native_pattern_split(
line: usize,
column: usize,
) -> Result<Value, RuntimeError> {
if args.len() != 2 {
return Err(RuntimeError::new(
"pattern_split requires exactly 2 arguments".to_string(),
line,
column,
));
}
super::helpers::check_arg_count("pattern_split", &args, 2)
.map_err(|e| RuntimeError::new(e.message, line, column))?;

let text = match &args[0] {
Value::Text(t) => t.as_ref(),
_ => {
return Err(RuntimeError::new(
"First argument must be text".to_string(),
line,
column,
));
}
};

let pattern = match &args[1] {
Value::Pattern(p) => p,
_ => {
return Err(RuntimeError::new(
"Second argument must be a pattern".to_string(),
line,
column,
));
}
};
let text_arc = super::helpers::expect_text(&args[0])
.map_err(|e| RuntimeError::new(e.message, line, column))?;
let text = text_arc.as_ref();

let pattern = super::helpers::expect_pattern(&args[1])
.map_err(|e| RuntimeError::new(e.message, line, column))?;
Comment thread src/stdlib/helpers.rs
expect_pattern,
Pattern,
Rc<crate::pattern::CompiledPattern>,
"a Pattern",
Comment thread pr_body.md
#### **Summary of Changes**

* **The Issue:** Manual extraction of `Value::Pattern` into `Rc<CompiledPattern>` was duplicated across multiple pattern matching native functions (`pattern_matches_native`, `pattern_find_native`, `pattern_find_all_native`, `native_pattern_replace`, and `native_pattern_split`) in `src/stdlib/pattern.rs`. Argument counting was also manually performed in many of these functions.
* **The Rational:** Reduced binary size, improved maintainability, reduced duplicated boilerplate code, and made error messages more consistent.

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Reviewed commit: a5385d9216

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/// Default token reader that uses rpassword to hide input.
fn default_token_reader(prompt: &str) -> Result<String, PackageError> {
rpassword::prompt_password_stdout(prompt)
rpassword::prompt_password(prompt)

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P2 Badge Preserve piped login tokens

When wflpkg login is run non-interactively, e.g. printf '%s\n' "$TOKEN" | wflpkg login, this change stops consuming stdin because the rpassword 7.5 docs describe prompt_password as prompting and reading from the TTY, while the previous prompt_password_stdout API prompted on stdout and read from stdin. That makes scripted/headless login fail or hang despite the token being piped; use a 7.5 configuration that preserves stdin/stdout behavior if that workflow should keep working.

Useful? React with 👍 / 👎.

@logbie logbie closed this Jun 5, 2026
@logbie
logbie deleted the jules-refactor-pattern-expect-4999034163852161112 branch June 19, 2026 04:05
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