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initial version of hook str api

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This commit is contained in:
Richard Holland
2022-10-06 08:11:49 +00:00
parent e99ffe29a3
commit 04a938377d
4 changed files with 260 additions and 4 deletions
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6
src/ripple/app/hook/Macro.h
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@@ -20,8 +20,8 @@
#define EMPTY()
#define DEFER(id) id EMPTY()
#define OBSTRUCT(...) __VA_ARGS__ DEFER(EMPTY)()
#define VA_NARGS_IMPL(_1, _2, _3, _4, _5, _6, _7, _8, _9, _10, N, ...) N
#define VA_NARGS(__drop, ...) VA_NARGS_IMPL(__VA_ARGS__, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1)
#define VA_NARGS_IMPL(_1, _2, _3, _4, _5, _6, _7, _8, _9, _10, _11, _12, N, ...) N
#define VA_NARGS(__drop, ...) VA_NARGS_IMPL(__VA_ARGS__, 12, 11, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1)
#define FIRST(a, b) a
#define SECOND(a, b) b
#define STRIP_TYPES(...) FOR_VARS(SECOND, 0, __VA_ARGS__)
@@ -41,6 +41,8 @@
#define FOR_VAR_8(T, S, a, ...) FOR_VAR_1(T, S, a) DELIM(S) FOR_VAR_7(T, S, __VA_ARGS__)
#define FOR_VAR_9(T, S, a, ...) FOR_VAR_1(T, S, a) DELIM(S) FOR_VAR_8(T, S, __VA_ARGS__)
#define FOR_VAR_10(T, S, a, ...) FOR_VAR_1(T, S, a) DELIM(S) FOR_VAR_9(T, S, __VA_ARGS__)
#define FOR_VAR_11(T, S, a, ...) FOR_VAR_1(T, S, a) DELIM(S) FOR_VAR_10(T, S, __VA_ARGS__)
#define FOR_VAR_12(T, S, a, ...) FOR_VAR_1(T, S, a) DELIM(S) FOR_VAR_11(T, S, __VA_ARGS__)
#define FOR_VARS(T, S, ...)\
DEFER(CAT(FOR_VAR_,VA_NARGS(NULL, __VA_ARGS__))CAT(LPAREN T COMMA S COMMA OBSTRUCT(__VA_ARGS__) RPAREN))