[b-l-i-n-d]

ClickUp ticket link: https://app.clickup.com/t/9018365849/z8zyy1prfm

Description

This PR forms Layer 2 of the build stack. It enables SWC minifier compression passes while ensuring 100% compatibility with WordPress's internationalization and translation system.

How WordPress Handles Translations & Why This Solution Does Not Break

• How translate.wordpress.org works: WordPress.org (GlotPress) scans shipped plugin files using WP-CLI's wp i18n make-pot to build official translation catalogs (see WordPress Internationalization Handbook). Its AST parser expects translation functions (__, _x, _n, etc.) to receive static string literals.
• The minifier issue: Default minifier compression (conditionals: true) merges ternary expressions calling the same function:

  // Original:
  cond ? __("Active", "tutor") : __("Inactive", "tutor");
  // Default minifier merges to:
  __(cond ? "Active" : "Inactive", "tutor");

  Because the argument becomes a dynamic expression (cond ? ...), the WordPress parser cannot statically extract either string, dropping them from translate.wordpress.org.
• Why our solution does not break: Setting compress: { conditionals: false } prevents the minifier from merging conditional branches into dynamic arguments, keeping literal string calls completely intact for GlotPress. All other compression passes (dead-code elimination, tree-shaking, scope flattening) remain fully active, maintaining maximum bundle reduction.

Key Changes

• Minifier Optimization: Configured SWC minifier with compress: { conditionals: false }, reserved ['__', '_x', '_n', '_nx'], and preserved translator comments (format: { comments: /translators/i }).

Minifier Compression Stats (Before vs After)

Bundle Entrypoint	Uncompressed (compress: false)	Optimized Minifier (conditionals: false)	Net Reduction
tutor-course-builder.js	1,030 KiB	759 KiB	-271 KiB (-26.3%)
tutor-order-details.js	668 KiB	506 KiB	-162 KiB (-24.3%)
tutor-payment-settings.js	780 KiB	598 KiB	-182 KiB (-23.3%)
tutor-tax-settings.js	695 KiB	525 KiB	-170 KiB (-24.5%)
tutor-import-export.js	727 KiB	546 KiB	-181 KiB (-24.9%)
tutor-coupon.js	545 KiB	441 KiB	-104 KiB (-19.1%)
tutor-addon-list.js	494 KiB	356 KiB	-138 KiB (-27.9%)
tutor-core.js	219 KiB	190 KiB	-29 KiB (-13.2%)
tutor.js	135 KiB	108 KiB	-27 KiB (-20.0%)

Stack

1. 📦 build(deps): update project dependencies and ESLint 10 configuration #3132 (Dependency) build/dependencies -> dev
2. # (Compress) build/minifier-compression -> build/dependencies
3. ⚡ feat(build): Add React Compiler support and optimize component rendering #3131 (Compiler) react-compiler -> build/minifier-compression

Testing

• Tested
• Not tested

• Build verification: rspack --mode=production runs cleanly.
• Translation safety verification: Executed full plugin string extraction via wp i18n make-pot, successfully verifying all 3,538 strings (including 1,451 from built JS bundles) are parsed and extracted cleanly without skipped expressions.

Use of AI Tool

Used: Yes

Used for:

Benchmarking SWC minifier compression passes and verifying translation string extraction via wp i18n make-pot.