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feat(util/name): additional methods to name Lua API

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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
This commit is contained in:
Leonardo de Moura 2014-01-07 17:35:34 -08:00
parent 248d55d454
commit 4fdc0406be
1 changed files with 43 additions and 5 deletions
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48
src/util/name.cpp
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@ -490,12 +490,50 @@ static int name_hash(lua_State * L) {
return 1; return 1;
} }
#define NAME_PRED(P) \
static int name_ ## P(lua_State * L) { \
lua_pushboolean(L, to_name(L, 1).P()); \
return 1; \
}
NAME_PRED(is_atomic)
NAME_PRED(is_anonymous)
NAME_PRED(is_string)
NAME_PRED(is_numeral)
static int name_get_prefix(lua_State * L) {
if (to_name(L, 1).is_atomic())
throw exception("invalid get_prefix, non-atomic name expected");
return push_name(L, to_name(L, 1).get_prefix());
}
static int name_get_numeral(lua_State * L) {
if (to_name(L, 1).is_numeral())
throw exception("invalid get_numeral, hierarchical name with numeric head expected");
lua_pushinteger(L, to_name(L, 1).get_numeral());
return 1;
}
static int name_get_string(lua_State * L) {
if (to_name(L, 1).is_string())
throw exception("invalid get_string, hierarchical name with string head expected");
lua_pushstring(L, to_name(L, 1).get_string());
return 1;
}
static const struct luaL_Reg name_m[] = { static const struct luaL_Reg name_m[] = {
{"__gc", name_gc}, // never throws {"__gc", name_gc}, // never throws
{"__tostring", safe_function<name_tostring>}, {"__tostring", safe_function<name_tostring>},
{"__eq", safe_function<name_eq>}, {"__eq", safe_function<name_eq>},
{"__lt", safe_function<name_lt>}, {"__lt", safe_function<name_lt>},
{"hash", safe_function<name_hash>}, {"is_atomic", safe_function<name_is_atomic>},
{"is_anonymous", safe_function<name_is_anonymous>},
{"is_numeral", safe_function<name_is_numeral>},
{"is_string", safe_function<name_is_string>},
{"get_prefix", safe_function<name_get_prefix>},
{"get_numeral", safe_function<name_get_numeral>},
{"get_string", safe_function<name_get_string>},
{"hash", safe_function<name_hash>},
{0, 0} {0, 0}
}; };