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[Impeller] Fix type conversion warnings seen on Windows when Impeller GL API wrappers log arguments with function types#181734

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[Impeller] Fix type conversion warnings seen on Windows when Impeller GL API wrappers log arguments with function types#181734
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#181157 introduced a call to the glDebugMessageCallback API using a lambda as the argument. On Windows builds this produces a warning about a nonstandard implicit conversion when the Impeller GL API wrappers try to log the callback argument.

… GL API wrappers log arguments with function types

flutter#181157 introduced a call to the
glDebugMessageCallback API using a lambda as the argument.  On Windows builds
this produces a warning about a nonstandard implicit conversion when the
Impeller GL API wrappers try to log the callback argument.
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It looks like this pull request may not have tests. Please make sure to add tests or get an explicit test exemption before merging.

If you are not sure if you need tests, consider this rule of thumb: the purpose of a test is to make sure someone doesn't accidentally revert the fix. Ask yourself, is there anything in your PR that you feel it is important we not accidentally revert back to how it was before your fix?

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@github-actions github-actions bot added engine flutter/engine related. See also e: labels. e: impeller Impeller rendering backend issues and features requests labels Jan 30, 2026
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This pull request addresses a type conversion warning on Windows related to logging function pointer arguments in Impeller's GL API wrappers. The changes consist of two parts: In playground_impl_gles.cc, the unary + operator is applied to a stateless lambda passed to glDebugMessageCallbackKHR to explicitly convert it to a function pointer. In proc_table_gles.h, BuildGLArgumentsStream is modified to use a new ArgLogger helper. This helper has a template specialization for function pointers that casts them to void* before logging, which avoids the conversion warning.

@jason-simmons jason-simmons added the autosubmit Merge PR when tree becomes green via auto submit App label Jan 30, 2026
@auto-submit auto-submit bot added this pull request to the merge queue Jan 30, 2026
Merged via the queue into flutter:master with commit dc2b4c6 Jan 30, 2026
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@flutter-dashboard flutter-dashboard bot removed the autosubmit Merge PR when tree becomes green via auto submit App label Jan 30, 2026
engine-flutter-autoroll added a commit to engine-flutter-autoroll/packages that referenced this pull request Jan 31, 2026
…n Impeller GL API wrappers log arguments with function types (flutter/flutter#181734)
engine-flutter-autoroll added a commit to engine-flutter-autoroll/packages that referenced this pull request Jan 31, 2026
…n Impeller GL API wrappers log arguments with function types (flutter/flutter#181734)
engine-flutter-autoroll added a commit to engine-flutter-autoroll/packages that referenced this pull request Feb 1, 2026
…n Impeller GL API wrappers log arguments with function types (flutter/flutter#181734)
engine-flutter-autoroll added a commit to engine-flutter-autoroll/packages that referenced this pull request Feb 1, 2026
…n Impeller GL API wrappers log arguments with function types (flutter/flutter#181734)
engine-flutter-autoroll added a commit to engine-flutter-autoroll/packages that referenced this pull request Feb 1, 2026
…n Impeller GL API wrappers log arguments with function types (flutter/flutter#181734)
engine-flutter-autoroll added a commit to engine-flutter-autoroll/packages that referenced this pull request Feb 2, 2026
…n Impeller GL API wrappers log arguments with function types (flutter/flutter#181734)
engine-flutter-autoroll added a commit to engine-flutter-autoroll/packages that referenced this pull request Feb 2, 2026
…n Impeller GL API wrappers log arguments with function types (flutter/flutter#181734)
engine-flutter-autoroll added a commit to engine-flutter-autoroll/packages that referenced this pull request Feb 2, 2026
…n Impeller GL API wrappers log arguments with function types (flutter/flutter#181734)
engine-flutter-autoroll added a commit to engine-flutter-autoroll/packages that referenced this pull request Feb 2, 2026
…n Impeller GL API wrappers log arguments with function types (flutter/flutter#181734)
auto-submit bot pushed a commit to flutter/packages that referenced this pull request Feb 2, 2026
flutter/flutter@1d9d6a9...9eafba4

2026-02-01 [email protected] Roll Skia from a8ceddc2bca0 to 4ee9eb659ae0 (1 revision) (flutter/flutter#181773)
2026-02-01 [email protected] Roll Skia from a5a535bc21a3 to a8ceddc2bca0 (1 revision) (flutter/flutter#181772)
2026-02-01 [email protected] Roll Dart SDK from cde322c518b9 to 84abc8d58ec8 (1 revision) (flutter/flutter#181767)
2026-02-01 [email protected] Roll Dart SDK from c72b3f527a07 to cde322c518b9 (1 revision) (flutter/flutter#181763)
2026-01-31 [email protected] Roll Dart SDK from 43de79f08887 to c72b3f527a07 (1 revision) (flutter/flutter#181762)
2026-01-31 [email protected] Roll Fuchsia Linux SDK from 27OsrsrKcrr2pOaqY... to nI52U4LJMrBv8G1M9... (flutter/flutter#181760)
2026-01-31 [email protected] Roll Dart SDK from a0aac59705e5 to 43de79f08887 (1 revision) (flutter/flutter#181758)
2026-01-31 [email protected] Roll Skia from b704afbcd8e7 to a5a535bc21a3 (1 revision) (flutter/flutter#181757)
2026-01-31 [email protected] Roll Dart SDK from d6f77f9098e1 to a0aac59705e5 (1 revision) (flutter/flutter#181756)
2026-01-31 [email protected] Roll Skia from 6f9511ce11ba to b704afbcd8e7 (4 revisions) (flutter/flutter#181753)
2026-01-31 [email protected] Roll Dart SDK from 0cf997832948 to d6f77f9098e1 (2 revisions) (flutter/flutter#181749)
2026-01-31 [email protected] Roll Skia from 33c00c0f3b8b to 6f9511ce11ba (1 revision) (flutter/flutter#181744)
2026-01-31 [email protected] Roll Dart SDK from be3ffc51d407 to 0cf997832948 (1 revision) (flutter/flutter#181740)
2026-01-30 [email protected] Roll Skia from b62d43b59dd6 to 33c00c0f3b8b (1 revision) (flutter/flutter#181735)
2026-01-30 [email protected] [Impeller] Fix type conversion warnings seen on Windows when Impeller GL API wrappers log arguments with function types (flutter/flutter#181734)
2026-01-30 [email protected] Update New Android API Docs (flutter/flutter#180604)
2026-01-30 [email protected] Roll Fuchsia Linux SDK from isy1ARvK-3bsvtfc-... to 27OsrsrKcrr2pOaqY... (flutter/flutter#181733)
2026-01-30 [email protected] Fix P3-to-sRGB color conversion to operate in linear light (flutter/flutter#181720)
2026-01-30 [email protected] chore: deflake Linux_mokey flutter_engine_group_performance (flutter/flutter#181624)
2026-01-30 [email protected] Roll Dart SDK from 2703fd9733ce to be3ffc51d407 (1 revision) (flutter/flutter#181729)
2026-01-30 [email protected] Ensure content-sizing resize is run on UI thread (flutter/flutter#181686)
2026-01-30 [email protected] [ Tool ] Cleanup `ResidentCompiler` initialization logic (flutter/flutter#181421)
2026-01-30 [email protected] [native assets] Split debug info into `.dsym` files (flutter/flutter#181533)
2026-01-30 [email protected] Roll Skia from 4745eb2fe837 to b62d43b59dd6 (1 revision) (flutter/flutter#181727)
2026-01-30 [email protected] add ccache support for custom toolchain (flutter/flutter#180737)
2026-01-30 [email protected] update GLFW to latest and use EGL context creation on linux (flutter/flutter#181259)
2026-01-30 [email protected] add stacktrace support when requested for host builds (flutter/flutter#181264)

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LongCatIsLooong pushed a commit to LongCatIsLooong/flutter that referenced this pull request Feb 6, 2026
… GL API wrappers log arguments with function types (flutter#181734)

flutter#181157 introduced a call to the
glDebugMessageCallback API using a lambda as the argument. On Windows
builds this produces a warning about a nonstandard implicit conversion
when the Impeller GL API wrappers try to log the callback argument.
flutter-zl pushed a commit to flutter-zl/flutter that referenced this pull request Feb 10, 2026
… GL API wrappers log arguments with function types (flutter#181734)

flutter#181157 introduced a call to the
glDebugMessageCallback API using a lambda as the argument. On Windows
builds this produces a warning about a nonstandard implicit conversion
when the Impeller GL API wrappers try to log the callback argument.
rickhohler pushed a commit to rickhohler/flutter that referenced this pull request Feb 19, 2026
… GL API wrappers log arguments with function types (flutter#181734)

flutter#181157 introduced a call to the
glDebugMessageCallback API using a lambda as the argument. On Windows
builds this produces a warning about a nonstandard implicit conversion
when the Impeller GL API wrappers try to log the callback argument.
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