mfbt/MacroForEach.h
author Nathan Froyd <froydnj@mozilla.com>
Sun, 18 Oct 2015 01:24:48 -0400
changeset 268184 e8c7dfe727cd970e2c3294934e2927b14143c205
parent 255867 0fdb9415359330d25b7db5f79e484b588d74eaa7
child 346476 9d30ac5bca6e1db8e4acd737dd017f4f213e815e
permissions -rw-r--r--
Bug 1207245 - part 6 - rename nsRefPtr<T> to RefPtr<T>; r=ehsan; a=Tomcat The bulk of this commit was generated with a script, executed at the top level of a typical source code checkout. The only non-machine-generated part was modifying MFBT's moz.build to reflect the new naming. CLOSED TREE makes big refactorings like this a piece of cake. # The main substitution. find . -name '*.cpp' -o -name '*.cc' -o -name '*.h' -o -name '*.mm' -o -name '*.idl'| \ xargs perl -p -i -e ' s/nsRefPtr\.h/RefPtr\.h/g; # handle includes s/nsRefPtr ?</RefPtr</g; # handle declarations and variables ' # Handle a special friend declaration in gfx/layers/AtomicRefCountedWithFinalize.h. perl -p -i -e 's/::nsRefPtr;/::RefPtr;/' gfx/layers/AtomicRefCountedWithFinalize.h # Handle nsRefPtr.h itself, a couple places that define constructors # from nsRefPtr, and code generators specially. We do this here, rather # than indiscriminantly s/nsRefPtr/RefPtr/, because that would rename # things like nsRefPtrHashtable. perl -p -i -e 's/nsRefPtr/RefPtr/g' \ mfbt/nsRefPtr.h \ xpcom/glue/nsCOMPtr.h \ xpcom/base/OwningNonNull.h \ ipc/ipdl/ipdl/lower.py \ ipc/ipdl/ipdl/builtin.py \ dom/bindings/Codegen.py \ python/lldbutils/lldbutils/utils.py # In our indiscriminate substitution above, we renamed # nsRefPtrGetterAddRefs, the class behind getter_AddRefs. Fix that up. find . -name '*.cpp' -o -name '*.h' -o -name '*.idl' | \ xargs perl -p -i -e 's/nsRefPtrGetterAddRefs/RefPtrGetterAddRefs/g' if [ -d .git ]; then git mv mfbt/nsRefPtr.h mfbt/RefPtr.h else hg mv mfbt/nsRefPtr.h mfbt/RefPtr.h fi

/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* 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/. */

/*
 * Implements a higher-order macro for iteratively calling another macro with
 * fixed leading arguments, plus a trailing element picked from a second list
 * of arguments.
 */

#ifndef mozilla_MacroForEach_h
#define mozilla_MacroForEach_h

#include "mozilla/MacroArgs.h"

/*
 * MOZ_FOR_EACH(aMacro, aFixedArgs, aArgs) expands to N calls to the macro
 * |aMacro| where N is equal the number of items in the list |aArgs|. The
 * arguments for each |aMacro| call are composed of *all* arguments in the list
 * |aFixedArgs| as well as a single argument in the list |aArgs|. For example:
 *
 *   #define MACRO_A(x) x +
 *   int a = MOZ_FOR_EACH(MACRO_A, (), (1, 2, 3)) 0;
 *   // Expands to:     MACRO_A(1) MACRO_A(2) MACRO_A(3) 0;
 *   // And further to: 1 + 2 + 3 + 0;
 *
 *   #define MACRO_B(k, x) (k + x) +
 *   int b = MOZ_FOR_EACH(MACRO_B, (5,), (1, 2)) 0;
 *   // Expands to: MACRO_B(5, 1) MACRO_B(5, 2) 0;
 *
 *   #define MACRO_C(k1, k2, x) (k1 + k2 + x) +
 *   int c = MOZ_FOR_EACH(MACRO_C, (5, 8,), (1, 2)) 0;
 *   // Expands to: MACRO_B(5, 8, 1) MACRO_B(5, 8, 2) 0;
 *
 * If the |aFixedArgs| list is not empty, a trailing comma must be included.
 *
 * The |aArgs| list must be not be empty and may be up to 50 items long. Use
 * MOZ_STATIC_ASSERT_VALID_ARG_COUNT to ensure that violating this constraint
 * results in a compile-time error.
 */
#define MOZ_FOR_EACH_EXPAND_HELPER(...) __VA_ARGS__
#define MOZ_FOR_EACH_GLUE(a, b) a b
#define MOZ_FOR_EACH(aMacro, aFixedArgs, aArgs) \
  MOZ_FOR_EACH_GLUE( \
    MOZ_PASTE_PREFIX_AND_ARG_COUNT(MOZ_FOR_EACH_, \
                                   MOZ_FOR_EACH_EXPAND_HELPER aArgs), \
    (aMacro, aFixedArgs, aArgs))

#define MOZ_FOR_EACH_HELPER_GLUE(a, b) a b
#define MOZ_FOR_EACH_HELPER(aMacro, aFixedArgs, aArgs) \
  MOZ_FOR_EACH_HELPER_GLUE( \
    aMacro, \
    (MOZ_FOR_EACH_EXPAND_HELPER aFixedArgs MOZ_ARG_1 aArgs))

#define MOZ_FOR_EACH_1(m, fa, a) \
  MOZ_FOR_EACH_HELPER(m, fa, a)
#define MOZ_FOR_EACH_2(m, fa, a) \
  MOZ_FOR_EACH_HELPER(m, fa, a) MOZ_FOR_EACH_1(m, fa, (MOZ_ARGS_AFTER_1 a))
#define MOZ_FOR_EACH_3(m, fa, a) \
  MOZ_FOR_EACH_HELPER(m, fa, a) MOZ_FOR_EACH_2(m, fa, (MOZ_ARGS_AFTER_1 a))
#define MOZ_FOR_EACH_4(m, fa, a) \
  MOZ_FOR_EACH_HELPER(m, fa, a) MOZ_FOR_EACH_3(m, fa, (MOZ_ARGS_AFTER_1 a))
#define MOZ_FOR_EACH_5(m, fa, a) \
  MOZ_FOR_EACH_HELPER(m, fa, a) MOZ_FOR_EACH_4(m, fa, (MOZ_ARGS_AFTER_1 a))
#define MOZ_FOR_EACH_6(m, fa, a) \
  MOZ_FOR_EACH_HELPER(m, fa, a) MOZ_FOR_EACH_5(m, fa, (MOZ_ARGS_AFTER_1 a))
#define MOZ_FOR_EACH_7(m, fa, a) \
  MOZ_FOR_EACH_HELPER(m, fa, a) MOZ_FOR_EACH_6(m, fa, (MOZ_ARGS_AFTER_1 a))
#define MOZ_FOR_EACH_8(m, fa, a) \
  MOZ_FOR_EACH_HELPER(m, fa, a) MOZ_FOR_EACH_7(m, fa, (MOZ_ARGS_AFTER_1 a))
#define MOZ_FOR_EACH_9(m, fa, a) \
  MOZ_FOR_EACH_HELPER(m, fa, a) MOZ_FOR_EACH_8(m, fa, (MOZ_ARGS_AFTER_1 a))
#define MOZ_FOR_EACH_10(m, fa, a) \
  MOZ_FOR_EACH_HELPER(m, fa, a) MOZ_FOR_EACH_9(m, fa, (MOZ_ARGS_AFTER_1 a))
#define MOZ_FOR_EACH_11(m, fa, a) \
  MOZ_FOR_EACH_HELPER(m, fa, a) MOZ_FOR_EACH_10(m, fa, (MOZ_ARGS_AFTER_1 a))
#define MOZ_FOR_EACH_12(m, fa, a) \
  MOZ_FOR_EACH_HELPER(m, fa, a) MOZ_FOR_EACH_11(m, fa, (MOZ_ARGS_AFTER_1 a))
#define MOZ_FOR_EACH_13(m, fa, a) \
  MOZ_FOR_EACH_HELPER(m, fa, a) MOZ_FOR_EACH_12(m, fa, (MOZ_ARGS_AFTER_1 a))
#define MOZ_FOR_EACH_14(m, fa, a) \
  MOZ_FOR_EACH_HELPER(m, fa, a) MOZ_FOR_EACH_13(m, fa, (MOZ_ARGS_AFTER_1 a))
#define MOZ_FOR_EACH_15(m, fa, a) \
  MOZ_FOR_EACH_HELPER(m, fa, a) MOZ_FOR_EACH_14(m, fa, (MOZ_ARGS_AFTER_1 a))
#define MOZ_FOR_EACH_16(m, fa, a) \
  MOZ_FOR_EACH_HELPER(m, fa, a) MOZ_FOR_EACH_15(m, fa, (MOZ_ARGS_AFTER_1 a))
#define MOZ_FOR_EACH_17(m, fa, a) \
  MOZ_FOR_EACH_HELPER(m, fa, a) MOZ_FOR_EACH_16(m, fa, (MOZ_ARGS_AFTER_1 a))
#define MOZ_FOR_EACH_18(m, fa, a) \
  MOZ_FOR_EACH_HELPER(m, fa, a) MOZ_FOR_EACH_17(m, fa, (MOZ_ARGS_AFTER_1 a))
#define MOZ_FOR_EACH_19(m, fa, a) \
  MOZ_FOR_EACH_HELPER(m, fa, a) MOZ_FOR_EACH_18(m, fa, (MOZ_ARGS_AFTER_1 a))
#define MOZ_FOR_EACH_20(m, fa, a) \
  MOZ_FOR_EACH_HELPER(m, fa, a) MOZ_FOR_EACH_19(m, fa, (MOZ_ARGS_AFTER_1 a))
#define MOZ_FOR_EACH_21(m, fa, a) \
  MOZ_FOR_EACH_HELPER(m, fa, a) MOZ_FOR_EACH_20(m, fa, (MOZ_ARGS_AFTER_1 a))
#define MOZ_FOR_EACH_22(m, fa, a) \
  MOZ_FOR_EACH_HELPER(m, fa, a) MOZ_FOR_EACH_21(m, fa, (MOZ_ARGS_AFTER_1 a))
#define MOZ_FOR_EACH_23(m, fa, a) \
  MOZ_FOR_EACH_HELPER(m, fa, a) MOZ_FOR_EACH_22(m, fa, (MOZ_ARGS_AFTER_1 a))
#define MOZ_FOR_EACH_24(m, fa, a) \
  MOZ_FOR_EACH_HELPER(m, fa, a) MOZ_FOR_EACH_23(m, fa, (MOZ_ARGS_AFTER_1 a))
#define MOZ_FOR_EACH_25(m, fa, a) \
  MOZ_FOR_EACH_HELPER(m, fa, a) MOZ_FOR_EACH_24(m, fa, (MOZ_ARGS_AFTER_1 a))
#define MOZ_FOR_EACH_26(m, fa, a) \
  MOZ_FOR_EACH_HELPER(m, fa, a) MOZ_FOR_EACH_25(m, fa, (MOZ_ARGS_AFTER_1 a))
#define MOZ_FOR_EACH_27(m, fa, a) \
  MOZ_FOR_EACH_HELPER(m, fa, a) MOZ_FOR_EACH_26(m, fa, (MOZ_ARGS_AFTER_1 a))
#define MOZ_FOR_EACH_28(m, fa, a) \
  MOZ_FOR_EACH_HELPER(m, fa, a) MOZ_FOR_EACH_27(m, fa, (MOZ_ARGS_AFTER_1 a))
#define MOZ_FOR_EACH_29(m, fa, a) \
  MOZ_FOR_EACH_HELPER(m, fa, a) MOZ_FOR_EACH_28(m, fa, (MOZ_ARGS_AFTER_1 a))
#define MOZ_FOR_EACH_30(m, fa, a) \
  MOZ_FOR_EACH_HELPER(m, fa, a) MOZ_FOR_EACH_29(m, fa, (MOZ_ARGS_AFTER_1 a))
#define MOZ_FOR_EACH_31(m, fa, a) \
  MOZ_FOR_EACH_HELPER(m, fa, a) MOZ_FOR_EACH_30(m, fa, (MOZ_ARGS_AFTER_1 a))
#define MOZ_FOR_EACH_32(m, fa, a) \
  MOZ_FOR_EACH_HELPER(m, fa, a) MOZ_FOR_EACH_31(m, fa, (MOZ_ARGS_AFTER_1 a))
#define MOZ_FOR_EACH_33(m, fa, a) \
  MOZ_FOR_EACH_HELPER(m, fa, a) MOZ_FOR_EACH_32(m, fa, (MOZ_ARGS_AFTER_1 a))
#define MOZ_FOR_EACH_34(m, fa, a) \
  MOZ_FOR_EACH_HELPER(m, fa, a) MOZ_FOR_EACH_33(m, fa, (MOZ_ARGS_AFTER_1 a))
#define MOZ_FOR_EACH_35(m, fa, a) \
  MOZ_FOR_EACH_HELPER(m, fa, a) MOZ_FOR_EACH_34(m, fa, (MOZ_ARGS_AFTER_1 a))
#define MOZ_FOR_EACH_36(m, fa, a) \
  MOZ_FOR_EACH_HELPER(m, fa, a) MOZ_FOR_EACH_35(m, fa, (MOZ_ARGS_AFTER_1 a))
#define MOZ_FOR_EACH_37(m, fa, a) \
  MOZ_FOR_EACH_HELPER(m, fa, a) MOZ_FOR_EACH_36(m, fa, (MOZ_ARGS_AFTER_1 a))
#define MOZ_FOR_EACH_38(m, fa, a) \
  MOZ_FOR_EACH_HELPER(m, fa, a) MOZ_FOR_EACH_37(m, fa, (MOZ_ARGS_AFTER_1 a))
#define MOZ_FOR_EACH_39(m, fa, a) \
  MOZ_FOR_EACH_HELPER(m, fa, a) MOZ_FOR_EACH_38(m, fa, (MOZ_ARGS_AFTER_1 a))
#define MOZ_FOR_EACH_40(m, fa, a) \
  MOZ_FOR_EACH_HELPER(m, fa, a) MOZ_FOR_EACH_39(m, fa, (MOZ_ARGS_AFTER_1 a))
#define MOZ_FOR_EACH_41(m, fa, a) \
  MOZ_FOR_EACH_HELPER(m, fa, a) MOZ_FOR_EACH_40(m, fa, (MOZ_ARGS_AFTER_1 a))
#define MOZ_FOR_EACH_42(m, fa, a) \
  MOZ_FOR_EACH_HELPER(m, fa, a) MOZ_FOR_EACH_41(m, fa, (MOZ_ARGS_AFTER_1 a))
#define MOZ_FOR_EACH_43(m, fa, a) \
  MOZ_FOR_EACH_HELPER(m, fa, a) MOZ_FOR_EACH_42(m, fa, (MOZ_ARGS_AFTER_1 a))
#define MOZ_FOR_EACH_44(m, fa, a) \
  MOZ_FOR_EACH_HELPER(m, fa, a) MOZ_FOR_EACH_43(m, fa, (MOZ_ARGS_AFTER_1 a))
#define MOZ_FOR_EACH_45(m, fa, a) \
  MOZ_FOR_EACH_HELPER(m, fa, a) MOZ_FOR_EACH_44(m, fa, (MOZ_ARGS_AFTER_1 a))
#define MOZ_FOR_EACH_46(m, fa, a) \
  MOZ_FOR_EACH_HELPER(m, fa, a) MOZ_FOR_EACH_45(m, fa, (MOZ_ARGS_AFTER_1 a))
#define MOZ_FOR_EACH_47(m, fa, a) \
  MOZ_FOR_EACH_HELPER(m, fa, a) MOZ_FOR_EACH_46(m, fa, (MOZ_ARGS_AFTER_1 a))
#define MOZ_FOR_EACH_48(m, fa, a) \
  MOZ_FOR_EACH_HELPER(m, fa, a) MOZ_FOR_EACH_47(m, fa, (MOZ_ARGS_AFTER_1 a))
#define MOZ_FOR_EACH_49(m, fa, a) \
  MOZ_FOR_EACH_HELPER(m, fa, a) MOZ_FOR_EACH_48(m, fa, (MOZ_ARGS_AFTER_1 a))
#define MOZ_FOR_EACH_50(m, fa, a) \
  MOZ_FOR_EACH_HELPER(m, fa, a) MOZ_FOR_EACH_49(m, fa, (MOZ_ARGS_AFTER_1 a))

#endif /* mozilla_MacroForEach_h */