mfbt/MacroForEach.h@97036ab72558 (annotated)
mfbt/MacroForEach.h
Tue, 06 Jan 2015 21:39:09 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Tue, 06 Jan 2015 21:39:09 +0100
- branch
- TOR_BUG_9701
- changeset 8
- 97036ab72558
- permissions
- -rw-r--r--
Conditionally force memory storage according to privacy.thirdparty.isolate;
This solves Tor bug #9701, complying with disk avoidance documented in
https://www.torproject.org/projects/torbrowser/design/#disk-avoidance.
| michael@0 | 1 | /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ |
| michael@0 | 2 | /* vim: set ts=8 sts=2 et sw=2 tw=80: */ |
| michael@0 | 3 | /* This Source Code Form is subject to the terms of the Mozilla Public |
| michael@0 | 4 | * License, v. 2.0. If a copy of the MPL was not distributed with this |
| michael@0 | 5 | * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ |
| michael@0 | 6 | |
| michael@0 | 7 | /* |
| michael@0 | 8 | * Implements a higher-order macro for iteratively calling another macro with |
| michael@0 | 9 | * fixed leading arguments, plus a trailing element picked from a second list |
| michael@0 | 10 | * of arguments. |
| michael@0 | 11 | */ |
| michael@0 | 12 | |
| michael@0 | 13 | #ifndef mozilla_MacroForEach_h |
| michael@0 | 14 | #define mozilla_MacroForEach_h |
| michael@0 | 15 | |
| michael@0 | 16 | #include "mozilla/MacroArgs.h" |
| michael@0 | 17 | |
| michael@0 | 18 | /* |
| michael@0 | 19 | * MOZ_FOR_EACH(aMacro, aFixedArgs, aArgs) expands to N calls to the macro |
| michael@0 | 20 | * |aMacro| where N is equal the number of items in the list |aArgs|. The |
| michael@0 | 21 | * arguments for each |aMacro| call are composed of *all* arguments in the list |
| michael@0 | 22 | * |aFixedArgs| as well as a single argument in the list |aArgs|. For example: |
| michael@0 | 23 | * |
| michael@0 | 24 | * #define MACRO_A(x) x + |
| michael@0 | 25 | * int a = MOZ_FOR_EACH(MACRO_A, (), (1, 2, 3)) 0; |
| michael@0 | 26 | * // Expands to: MACRO_A(1) MACRO_A(2) MACRO_A(3) 0; |
| michael@0 | 27 | * // And further to: 1 + 2 + 3 + 0; |
| michael@0 | 28 | * |
| michael@0 | 29 | * #define MACRO_B(k, x) (k + x) + |
| michael@0 | 30 | * int b = MOZ_FOR_EACH(MACRO_B, (5,), (1, 2)) 0; |
| michael@0 | 31 | * // Expands to: MACRO_B(5, 1) MACRO_B(5, 2) 0; |
| michael@0 | 32 | * |
| michael@0 | 33 | * #define MACRO_C(k1, k2, x) (k1 + k2 + x) + |
| michael@0 | 34 | * int c = MOZ_FOR_EACH(MACRO_C, (5, 8,), (1, 2)) 0; |
| michael@0 | 35 | * // Expands to: MACRO_B(5, 8, 1) MACRO_B(5, 8, 2) 0; |
| michael@0 | 36 | * |
| michael@0 | 37 | * If the |aFixedArgs| list is not empty, a trailing comma must be included. |
| michael@0 | 38 | * |
| michael@0 | 39 | * The |aArgs| list must be not be empty and may be up to 50 items long. Use |
| michael@0 | 40 | * MOZ_STATIC_ASSERT_VALID_ARG_COUNT to ensure that violating this constraint |
| michael@0 | 41 | * results in a compile-time error. |
| michael@0 | 42 | */ |
| michael@0 | 43 | #define MOZ_FOR_EACH_EXPAND_HELPER(...) __VA_ARGS__ |
| michael@0 | 44 | #define MOZ_FOR_EACH_GLUE(a, b) a b |
| michael@0 | 45 | #define MOZ_FOR_EACH(aMacro, aFixedArgs, aArgs) \ |
| michael@0 | 46 | MOZ_FOR_EACH_GLUE( \ |
| michael@0 | 47 | MOZ_PASTE_PREFIX_AND_ARG_COUNT(MOZ_FOR_EACH_, \ |
| michael@0 | 48 | MOZ_FOR_EACH_EXPAND_HELPER aArgs), \ |
| michael@0 | 49 | (aMacro, aFixedArgs, aArgs)) |
| michael@0 | 50 | |
| michael@0 | 51 | #define MOZ_FOR_EACH_HELPER_GLUE(a, b) a b |
| michael@0 | 52 | #define MOZ_FOR_EACH_HELPER(aMacro, aFixedArgs, aArgs) \ |
| michael@0 | 53 | MOZ_FOR_EACH_HELPER_GLUE( \ |
| michael@0 | 54 | aMacro, \ |
| michael@0 | 55 | (MOZ_FOR_EACH_EXPAND_HELPER aFixedArgs MOZ_ARG_1 aArgs)) |
| michael@0 | 56 | |
| michael@0 | 57 | #define MOZ_FOR_EACH_1(m, fa, a) \ |
| michael@0 | 58 | MOZ_FOR_EACH_HELPER(m, fa, a) |
| michael@0 | 59 | #define MOZ_FOR_EACH_2(m, fa, a) \ |
| michael@0 | 60 | MOZ_FOR_EACH_HELPER(m, fa, a) MOZ_FOR_EACH_1(m, fa, (MOZ_ARGS_AFTER_1 a)) |
| michael@0 | 61 | #define MOZ_FOR_EACH_3(m, fa, a) \ |
| michael@0 | 62 | MOZ_FOR_EACH_HELPER(m, fa, a) MOZ_FOR_EACH_2(m, fa, (MOZ_ARGS_AFTER_1 a)) |
| michael@0 | 63 | #define MOZ_FOR_EACH_4(m, fa, a) \ |
| michael@0 | 64 | MOZ_FOR_EACH_HELPER(m, fa, a) MOZ_FOR_EACH_3(m, fa, (MOZ_ARGS_AFTER_1 a)) |
| michael@0 | 65 | #define MOZ_FOR_EACH_5(m, fa, a) \ |
| michael@0 | 66 | MOZ_FOR_EACH_HELPER(m, fa, a) MOZ_FOR_EACH_4(m, fa, (MOZ_ARGS_AFTER_1 a)) |
| michael@0 | 67 | #define MOZ_FOR_EACH_6(m, fa, a) \ |
| michael@0 | 68 | MOZ_FOR_EACH_HELPER(m, fa, a) MOZ_FOR_EACH_5(m, fa, (MOZ_ARGS_AFTER_1 a)) |
| michael@0 | 69 | #define MOZ_FOR_EACH_7(m, fa, a) \ |
| michael@0 | 70 | MOZ_FOR_EACH_HELPER(m, fa, a) MOZ_FOR_EACH_6(m, fa, (MOZ_ARGS_AFTER_1 a)) |
| michael@0 | 71 | #define MOZ_FOR_EACH_8(m, fa, a) \ |
| michael@0 | 72 | MOZ_FOR_EACH_HELPER(m, fa, a) MOZ_FOR_EACH_7(m, fa, (MOZ_ARGS_AFTER_1 a)) |
| michael@0 | 73 | #define MOZ_FOR_EACH_9(m, fa, a) \ |
| michael@0 | 74 | MOZ_FOR_EACH_HELPER(m, fa, a) MOZ_FOR_EACH_8(m, fa, (MOZ_ARGS_AFTER_1 a)) |
| michael@0 | 75 | #define MOZ_FOR_EACH_10(m, fa, a) \ |
| michael@0 | 76 | MOZ_FOR_EACH_HELPER(m, fa, a) MOZ_FOR_EACH_9(m, fa, (MOZ_ARGS_AFTER_1 a)) |
| michael@0 | 77 | #define MOZ_FOR_EACH_11(m, fa, a) \ |
| michael@0 | 78 | MOZ_FOR_EACH_HELPER(m, fa, a) MOZ_FOR_EACH_10(m, fa, (MOZ_ARGS_AFTER_1 a)) |
| michael@0 | 79 | #define MOZ_FOR_EACH_12(m, fa, a) \ |
| michael@0 | 80 | MOZ_FOR_EACH_HELPER(m, fa, a) MOZ_FOR_EACH_11(m, fa, (MOZ_ARGS_AFTER_1 a)) |
| michael@0 | 81 | #define MOZ_FOR_EACH_13(m, fa, a) \ |
| michael@0 | 82 | MOZ_FOR_EACH_HELPER(m, fa, a) MOZ_FOR_EACH_12(m, fa, (MOZ_ARGS_AFTER_1 a)) |
| michael@0 | 83 | #define MOZ_FOR_EACH_14(m, fa, a) \ |
| michael@0 | 84 | MOZ_FOR_EACH_HELPER(m, fa, a) MOZ_FOR_EACH_13(m, fa, (MOZ_ARGS_AFTER_1 a)) |
| michael@0 | 85 | #define MOZ_FOR_EACH_15(m, fa, a) \ |
| michael@0 | 86 | MOZ_FOR_EACH_HELPER(m, fa, a) MOZ_FOR_EACH_14(m, fa, (MOZ_ARGS_AFTER_1 a)) |
| michael@0 | 87 | #define MOZ_FOR_EACH_16(m, fa, a) \ |
| michael@0 | 88 | MOZ_FOR_EACH_HELPER(m, fa, a) MOZ_FOR_EACH_15(m, fa, (MOZ_ARGS_AFTER_1 a)) |
| michael@0 | 89 | #define MOZ_FOR_EACH_17(m, fa, a) \ |
| michael@0 | 90 | MOZ_FOR_EACH_HELPER(m, fa, a) MOZ_FOR_EACH_16(m, fa, (MOZ_ARGS_AFTER_1 a)) |
| michael@0 | 91 | #define MOZ_FOR_EACH_18(m, fa, a) \ |
| michael@0 | 92 | MOZ_FOR_EACH_HELPER(m, fa, a) MOZ_FOR_EACH_17(m, fa, (MOZ_ARGS_AFTER_1 a)) |
| michael@0 | 93 | #define MOZ_FOR_EACH_19(m, fa, a) \ |
| michael@0 | 94 | MOZ_FOR_EACH_HELPER(m, fa, a) MOZ_FOR_EACH_18(m, fa, (MOZ_ARGS_AFTER_1 a)) |
| michael@0 | 95 | #define MOZ_FOR_EACH_20(m, fa, a) \ |
| michael@0 | 96 | MOZ_FOR_EACH_HELPER(m, fa, a) MOZ_FOR_EACH_19(m, fa, (MOZ_ARGS_AFTER_1 a)) |
| michael@0 | 97 | #define MOZ_FOR_EACH_21(m, fa, a) \ |
| michael@0 | 98 | MOZ_FOR_EACH_HELPER(m, fa, a) MOZ_FOR_EACH_20(m, fa, (MOZ_ARGS_AFTER_1 a)) |
| michael@0 | 99 | #define MOZ_FOR_EACH_22(m, fa, a) \ |
| michael@0 | 100 | MOZ_FOR_EACH_HELPER(m, fa, a) MOZ_FOR_EACH_21(m, fa, (MOZ_ARGS_AFTER_1 a)) |
| michael@0 | 101 | #define MOZ_FOR_EACH_23(m, fa, a) \ |
| michael@0 | 102 | MOZ_FOR_EACH_HELPER(m, fa, a) MOZ_FOR_EACH_22(m, fa, (MOZ_ARGS_AFTER_1 a)) |
| michael@0 | 103 | #define MOZ_FOR_EACH_24(m, fa, a) \ |
| michael@0 | 104 | MOZ_FOR_EACH_HELPER(m, fa, a) MOZ_FOR_EACH_23(m, fa, (MOZ_ARGS_AFTER_1 a)) |
| michael@0 | 105 | #define MOZ_FOR_EACH_25(m, fa, a) \ |
| michael@0 | 106 | MOZ_FOR_EACH_HELPER(m, fa, a) MOZ_FOR_EACH_24(m, fa, (MOZ_ARGS_AFTER_1 a)) |
| michael@0 | 107 | #define MOZ_FOR_EACH_26(m, fa, a) \ |
| michael@0 | 108 | MOZ_FOR_EACH_HELPER(m, fa, a) MOZ_FOR_EACH_25(m, fa, (MOZ_ARGS_AFTER_1 a)) |
| michael@0 | 109 | #define MOZ_FOR_EACH_27(m, fa, a) \ |
| michael@0 | 110 | MOZ_FOR_EACH_HELPER(m, fa, a) MOZ_FOR_EACH_26(m, fa, (MOZ_ARGS_AFTER_1 a)) |
| michael@0 | 111 | #define MOZ_FOR_EACH_28(m, fa, a) \ |
| michael@0 | 112 | MOZ_FOR_EACH_HELPER(m, fa, a) MOZ_FOR_EACH_27(m, fa, (MOZ_ARGS_AFTER_1 a)) |
| michael@0 | 113 | #define MOZ_FOR_EACH_29(m, fa, a) \ |
| michael@0 | 114 | MOZ_FOR_EACH_HELPER(m, fa, a) MOZ_FOR_EACH_28(m, fa, (MOZ_ARGS_AFTER_1 a)) |
| michael@0 | 115 | #define MOZ_FOR_EACH_30(m, fa, a) \ |
| michael@0 | 116 | MOZ_FOR_EACH_HELPER(m, fa, a) MOZ_FOR_EACH_29(m, fa, (MOZ_ARGS_AFTER_1 a)) |
| michael@0 | 117 | #define MOZ_FOR_EACH_31(m, fa, a) \ |
| michael@0 | 118 | MOZ_FOR_EACH_HELPER(m, fa, a) MOZ_FOR_EACH_30(m, fa, (MOZ_ARGS_AFTER_1 a)) |
| michael@0 | 119 | #define MOZ_FOR_EACH_32(m, fa, a) \ |
| michael@0 | 120 | MOZ_FOR_EACH_HELPER(m, fa, a) MOZ_FOR_EACH_31(m, fa, (MOZ_ARGS_AFTER_1 a)) |
| michael@0 | 121 | #define MOZ_FOR_EACH_33(m, fa, a) \ |
| michael@0 | 122 | MOZ_FOR_EACH_HELPER(m, fa, a) MOZ_FOR_EACH_32(m, fa, (MOZ_ARGS_AFTER_1 a)) |
| michael@0 | 123 | #define MOZ_FOR_EACH_34(m, fa, a) \ |
| michael@0 | 124 | MOZ_FOR_EACH_HELPER(m, fa, a) MOZ_FOR_EACH_33(m, fa, (MOZ_ARGS_AFTER_1 a)) |
| michael@0 | 125 | #define MOZ_FOR_EACH_35(m, fa, a) \ |
| michael@0 | 126 | MOZ_FOR_EACH_HELPER(m, fa, a) MOZ_FOR_EACH_34(m, fa, (MOZ_ARGS_AFTER_1 a)) |
| michael@0 | 127 | #define MOZ_FOR_EACH_36(m, fa, a) \ |
| michael@0 | 128 | MOZ_FOR_EACH_HELPER(m, fa, a) MOZ_FOR_EACH_35(m, fa, (MOZ_ARGS_AFTER_1 a)) |
| michael@0 | 129 | #define MOZ_FOR_EACH_37(m, fa, a) \ |
| michael@0 | 130 | MOZ_FOR_EACH_HELPER(m, fa, a) MOZ_FOR_EACH_36(m, fa, (MOZ_ARGS_AFTER_1 a)) |
| michael@0 | 131 | #define MOZ_FOR_EACH_38(m, fa, a) \ |
| michael@0 | 132 | MOZ_FOR_EACH_HELPER(m, fa, a) MOZ_FOR_EACH_37(m, fa, (MOZ_ARGS_AFTER_1 a)) |
| michael@0 | 133 | #define MOZ_FOR_EACH_39(m, fa, a) \ |
| michael@0 | 134 | MOZ_FOR_EACH_HELPER(m, fa, a) MOZ_FOR_EACH_38(m, fa, (MOZ_ARGS_AFTER_1 a)) |
| michael@0 | 135 | #define MOZ_FOR_EACH_40(m, fa, a) \ |
| michael@0 | 136 | MOZ_FOR_EACH_HELPER(m, fa, a) MOZ_FOR_EACH_39(m, fa, (MOZ_ARGS_AFTER_1 a)) |
| michael@0 | 137 | #define MOZ_FOR_EACH_41(m, fa, a) \ |
| michael@0 | 138 | MOZ_FOR_EACH_HELPER(m, fa, a) MOZ_FOR_EACH_40(m, fa, (MOZ_ARGS_AFTER_1 a)) |
| michael@0 | 139 | #define MOZ_FOR_EACH_42(m, fa, a) \ |
| michael@0 | 140 | MOZ_FOR_EACH_HELPER(m, fa, a) MOZ_FOR_EACH_41(m, fa, (MOZ_ARGS_AFTER_1 a)) |
| michael@0 | 141 | #define MOZ_FOR_EACH_43(m, fa, a) \ |
| michael@0 | 142 | MOZ_FOR_EACH_HELPER(m, fa, a) MOZ_FOR_EACH_42(m, fa, (MOZ_ARGS_AFTER_1 a)) |
| michael@0 | 143 | #define MOZ_FOR_EACH_44(m, fa, a) \ |
| michael@0 | 144 | MOZ_FOR_EACH_HELPER(m, fa, a) MOZ_FOR_EACH_43(m, fa, (MOZ_ARGS_AFTER_1 a)) |
| michael@0 | 145 | #define MOZ_FOR_EACH_45(m, fa, a) \ |
| michael@0 | 146 | MOZ_FOR_EACH_HELPER(m, fa, a) MOZ_FOR_EACH_44(m, fa, (MOZ_ARGS_AFTER_1 a)) |
| michael@0 | 147 | #define MOZ_FOR_EACH_46(m, fa, a) \ |
| michael@0 | 148 | MOZ_FOR_EACH_HELPER(m, fa, a) MOZ_FOR_EACH_45(m, fa, (MOZ_ARGS_AFTER_1 a)) |
| michael@0 | 149 | #define MOZ_FOR_EACH_47(m, fa, a) \ |
| michael@0 | 150 | MOZ_FOR_EACH_HELPER(m, fa, a) MOZ_FOR_EACH_46(m, fa, (MOZ_ARGS_AFTER_1 a)) |
| michael@0 | 151 | #define MOZ_FOR_EACH_48(m, fa, a) \ |
| michael@0 | 152 | MOZ_FOR_EACH_HELPER(m, fa, a) MOZ_FOR_EACH_47(m, fa, (MOZ_ARGS_AFTER_1 a)) |
| michael@0 | 153 | #define MOZ_FOR_EACH_49(m, fa, a) \ |
| michael@0 | 154 | MOZ_FOR_EACH_HELPER(m, fa, a) MOZ_FOR_EACH_48(m, fa, (MOZ_ARGS_AFTER_1 a)) |
| michael@0 | 155 | #define MOZ_FOR_EACH_50(m, fa, a) \ |
| michael@0 | 156 | MOZ_FOR_EACH_HELPER(m, fa, a) MOZ_FOR_EACH_49(m, fa, (MOZ_ARGS_AFTER_1 a)) |
| michael@0 | 157 | |
| michael@0 | 158 | #endif /* mozilla_MacroForEach_h */ |
