Add MiniPdf.ClearRegisteredFonts - #166
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RegisterFont appends to a process-wide list and there is no way to remove entries, so a long-running host cannot release registrations or swap font sets between conversions. Add ClearRegisteredFonts(), matching the Java port's clearRegisteredFonts(). RegisterFont behavior is unchanged. RegisteredFontTests runs in a collection with parallelization disabled, because registrations are process-wide and conversions in other collections would otherwise read the fonts the tests register. Refs mini-software#163 Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
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Included review availability: Your plan provides up to 2 included reviews per hour; 0 remain after this review. 📝 WalkthroughWalkthroughAdds ChangesRegistered font clearing
Priority: ➖ Normal Estimated code review effort: 2 (Simple) | ~10 minutes Change: Feature · Severity of issue fixed: Medium Merge Risk: 🔵 Low · up to The new API documentation has not been synchronized with the required translated README content. Update the translation before merge to keep published documentation consistent. 🚥 Pre-merge checks | ✅ 5✅ Passed checks (5 passed)
✨ Finishing Touches🧪 Generate unit tests (beta)
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🟡 Changes recommended
Fix the out-of-scope Name reference so the test project compiles.
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Pull request overview
Adds a public API for clearing process-wide registered fonts, with tests and NuGet documentation.
Changes:
- Adds
MiniPdf.ClearRegisteredFonts(). - Adds tests for clearing and snapshot behavior.
- Documents font-set switching between conversions.
File summaries
| File | Summary |
|---|---|
tests/MiniPdf.Tests/RegisteredFontTests.cs |
Adds registered-font reset tests; Critical: Name is out of scope, causing compilation error CS0103. |
src/MiniPdf/MiniPdf.cs |
Adds the thread-safe clearing API. |
documents/README.nuget.md |
Documents process-wide font cleanup. |
Review details
- Files reviewed: 3/3 changed files
- Comments generated: 1
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| /// Runs registered-font tests apart from other collections. Registrations are process-wide, | ||
| /// so conversions running in parallel would otherwise read the fonts these tests register. | ||
| /// </summary> | ||
| [CollectionDefinition(Name, DisableParallelization = true)] |
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This compiles: inside the attribute on RegisteredFontCollection, Name resolves to that
class's own constant, so both attributes use the collection name Registered fonts. The CI
build job compiled the test project and all three RegisteredFontTests tests passed:
https://github.com/mini-software/MiniPdf/actions/runs/34558204444/job/103135305597
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Actionable comments posted: 1
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Inline comments:
In `@documents/README.nuget.md`:
- Around line 94-95: Synchronize every translated README under documents/ with
the new ClearRegisteredFonts guidance from README.nuget.md, preserving the
existing translation style and placement. Ensure each translated document
explains that registrations are process-wide and MiniPdf.ClearRegisteredFonts()
removes them before a later conversion requiring a different font set.
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documents/README.nuget.mdsrc/MiniPdf/MiniPdf.cstests/MiniPdf.Tests/RegisteredFontTests.cs
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The docstring coverage check on this PR counts every function the diff touches, and the test class constructor and Dispose had no XML doc comments. Refs mini-software#163 Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Summary
Adds
MiniPdf.ClearRegisteredFonts()to the .NET library.RegisterFontappends to aprocess-wide list and there was no way to remove entries, so a long-running host (a server,
or a Blazor WebAssembly app) could not release registrations or swap font sets between
conversions.
The new method clears the list under the existing lock. It matches the Java port's
clearRegisteredFonts()and leavesRegisterFontbehavior unchanged, as agreed in #163(option 1, without
UnregisterFont).Closes #163
Public API: one new public static method. The change is additive.
A conversion already in progress keeps the font snapshot it has read.
PdfWriterreadsthe list separately for embedding (
PdfWriter.cs:173) and for missing-font diagnostics(
PdfWriter.cs:2774), so clearing between those two reads can make the diagnosticsdisagree with the embedded fonts; this PR does not change that.
RegisteredFontTestsruns in a collection withDisableParallelization = true, becauseregistrations are process-wide and conversions in other collections would otherwise read
the fonts the tests register.
documents/README.nuget.mdgains one sentence under Custom Fonts. The EnglishREADME.mddoes not document .NET font registration, so no translated README changes.
Validation
macOS arm64, .NET SDK 9.0.317, based on
54f06487.dotnet build src/MiniPdf/MiniPdf.csproj -c Release -f net9.0: 0 errors, 153 warnings,the same count as
54f06487without this change.-f netstandard2.0,-f net6.0, and-f net8.0also build with 0 errors and no warnings on the changed lines.net462wasnot built because it does not restore on macOS.
dotnet test tests/MiniPdf.Tests -c Release: 195 passed, 2 failed, 197 total. The threenew
RegisteredFontTestspass.Issue79_EmbeddedCjkFonts_ProducesCompactPdf(Issue79_FilledContract.docx)and
Issue78_HeaderTable_UsesPreferredFontWidthsForAlignment, fail the same way on54f06487without this change on this machine (192 passed, 2 failed, 194 total). CIpassed on that commit, so they appear to depend on the fonts installed on the host.
git diff --check: clean.No rendering change, so no visual benchmark was run.
Checklist
Generated with Claude Code
Summary by CodeRabbit
New Features
ClearRegisteredFonts()to remove all process-wide registered fonts.Documentation