forked from 0ad/0ad
66 lines
2.2 KiB
C
66 lines
2.2 KiB
C
/* Copyright (C) 2009 Wildfire Games.
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* This file is part of 0 A.D.
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*
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* 0 A.D. is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 2 of the License, or
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* (at your option) any later version.
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*
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* 0 A.D. is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with 0 A.D. If not, see <http://www.gnu.org/licenses/>.
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*/
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// included from SpiderMonkey.h
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extern jsval jsu_report_param_error(JSContext* cx, jsval* rval);
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// consistent argc checking for normal function wrappers: reports an
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// error via JS and returns if number of parameters is incorrect.
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// .. require exact number (most common case)
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#define JSU_REQUIRE_PARAMS(exact_number)\
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if(argc != exact_number)\
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return jsu_report_param_error(cx, rval);
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// .. require 0 params (avoids L4 warning "unused argv param")
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#define JSU_REQUIRE_NO_PARAMS()\
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UNUSED2(argv);\
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if(argc != 0)\
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return jsu_report_param_error(cx, rval);
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// .. require a certain range (e.g. due to optional params)
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#define JSU_REQUIRE_PARAM_RANGE(min_number, max_number)\
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if(!(min_number <= argc && argc <= max_number))\
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return jsu_report_param_error(cx, rval);
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// .. require at most a certain count
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#define JSU_REQUIRE_MAX_PARAMS(max_number)\
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if(argc > max_number)\
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return jsu_report_param_error(cx, rval);
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// .. require at least a certain count (rarely needed)
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#define JSU_REQUIRE_MIN_PARAMS(min_number)\
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if(argc < min_number)\
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return jsu_report_param_error(cx, rval);
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// same as JSU_REQUIRE_PARAMS, but used from C++ functions that are
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// a bit further removed from SpiderMonkey, i.e. return a
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// C++ bool indicating success, and not taking an rval param.
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#define JSU_REQUIRE_PARAMS_CPP(exact_number)\
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if(argc != exact_number)\
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{\
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jsu_report_param_error(cx, 0);\
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return false;\
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}
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#define JSU_ASSERT(expr, msg)\
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STMT(\
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if(!(expr))\
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{\
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JS_ReportError(cx, msg);\
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return JS_FALSE;\
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}\
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)
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