diff options
Diffstat (limited to 'layout/base/RestyleLogging.h')
| -rw-r--r-- | layout/base/RestyleLogging.h | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/layout/base/RestyleLogging.h b/layout/base/RestyleLogging.h new file mode 100644 index 000000000..93c1c8ec6 --- /dev/null +++ b/layout/base/RestyleLogging.h @@ -0,0 +1,48 @@ +/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/* This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ + +/** + * Macros used to log restyle events. + */ + +#ifndef mozilla_RestyleLogging_h +#define mozilla_RestyleLogging_h + +#include "mozilla/AutoRestore.h" + +#ifdef DEBUG +#define RESTYLE_LOGGING +#endif + +#ifdef RESTYLE_LOGGING +#define LOG_RESTYLE_VAR2(prefix_, suffix_) prefix_##suffix_ +#define LOG_RESTYLE_VAR(prefix_, suffix_) LOG_RESTYLE_VAR2(prefix_, suffix_) +#define LOG_RESTYLE_DEPTH LOG_RESTYLE_VAR(restyle_depth_, __LINE__) +#define LOG_RESTYLE_IF(object_, cond_, message_, ...) \ + PR_BEGIN_MACRO \ + if (object_->ShouldLogRestyle() && (cond_)) { \ + nsCString line; \ + for (int32_t LOG_RESTYLE_VAR(rs_depth_, __LINE__) = 0; \ + LOG_RESTYLE_VAR(rs_depth_, __LINE__) < object_->LoggingDepth(); \ + LOG_RESTYLE_VAR(rs_depth_, __LINE__)++) { \ + line.AppendLiteral(" "); \ + } \ + line.AppendPrintf(message_, ##__VA_ARGS__); \ + printf_stderr("%s\n", line.get()); \ + } \ + PR_END_MACRO +#define LOG_RESTYLE(message_, ...) \ + LOG_RESTYLE_IF(this, true, message_, ##__VA_ARGS__) +// Beware that LOG_RESTYLE_INDENT is two statements not wrapped in a block. +#define LOG_RESTYLE_INDENT() \ + AutoRestore<int32_t> LOG_RESTYLE_VAR(ar_depth_, __LINE__)(LoggingDepth()); \ + ++LoggingDepth(); +#else +#define LOG_RESTYLE_IF(cond_, message_, ...) /* nothing */ +#define LOG_RESTYLE(message_, ...) /* nothing */ +#define LOG_RESTYLE_INDENT() /* nothing */ +#endif + +#endif /* mozilla_RestyleLogging_h */ |