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Joshua Gross
ec4833f06d
Summary: BUCK always defines NDEBUG on Android builds. This is a longstanding issue and it's tricky to work around. Previous attempts to fix this within React Native were difficult because disabling NDEBUG caused lots of issues that were difficult to track down. Instead, I am (1) introducing a new RN_DEBUG flag that can be used cross-platform, (2) whenever NDEBUG is *not* enabled, RN_DEBUG will automatically be defined, (3) enables debug-only code to be compiled on Android, (4) enables us to selectively, slowly migrate `assert` to `rn_assert` in a way that doesn't impact non-Android platforms, but allows us to maintain stability of Android debug builds. Actually enabling the RN_DEBUG flag in debug builds is done in FB-internal code. I assume the NDEBUG issue is not a problem when compiling in open-source without BUCK. Changelog: [Internal] Reviewed By: mdvacca Differential Revision: D26409355 fbshipit-source-id: 285b8073bba3756834925727bfa28d3c6bc06335
51 lines
1.7 KiB
C
51 lines
1.7 KiB
C
/*
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* Copyright (c) Facebook, Inc. and its affiliates.
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*
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* This source code is licensed under the MIT license found in the
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* LICENSE file in the root directory of this source tree.
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*/
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#pragma once
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#include <react/debug/flags.h>
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//
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// This file contains flags that should __never__ be enabled for
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// release-mode/production builds, unless explicitly noted. You can enable some
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// of these for debug or local builds to assist in logging / debugging specific
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// features.
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//
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// Enables verbose logging for the LayoutAnimations subsystem.
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//#define LAYOUT_ANIMATION_VERBOSE_LOGGING 1
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// Logs information before running `assert` in LayoutAnimations. More useful on
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// Android vs other platforms.
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//#define VERBOSE_LAYOUT_ANIMATION_ASSERTS 1
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// Enables some Shadow Tree introspection features (maintains a StubViewTree,
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// and logs prev/next tree and mutations if there are any discrepancies). If you
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// define this, also define `RN_DEBUG_STRING_CONVERTIBLE`.
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#ifndef NDEBUG
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#define RN_SHADOW_TREE_INTROSPECTION 1
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#endif
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// This enables certain object-to-string debug conversions to be compiled.
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// Enable if `RN_SHADOW_TREE_INTROSPECTION` is enabled.
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#ifdef RN_SHADOW_TREE_INTROSPECTION
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#define RN_DEBUG_STRING_CONVERTIBLE 1
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#endif
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// Enables *very* verbose, noisy logs in the differ. Useful for debugging
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// specifically the differ, but not much else.
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//#define DEBUG_LOGS_DIFFER
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// Uncomment to enable verbose StubViewTree debug logs. This ensures that errors
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// are logged to console before the `assert` is fired. More useful on Android vs
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// other platforms.
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//#define STUB_VIEW_TREE_VERBOSE 1
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// Verbose logging for certain Yoga-related things in the RN codebase (not Yoga
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// codebase). Useful for debugging layout.
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//#define RN_DEBUG_YOGA_LOGGER 1
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