forked from 0ad/0ad
janwas
37c87a6579
add new JSUtil, automatically included via SpiderMonkey.h. move JS_ASSERT there and rename JSU_ASSERT. move scriptglue's REQUIRE_PARAMS there and rename to JSU_* replace if(argc < x) bail() code with those macros. This was SVN commit r4169.
45 lines
1.4 KiB
C
45 lines
1.4 KiB
C
// included from SpiderMonkey.h
|
|
|
|
extern jsval jsu_report_param_error(JSContext* cx, jsval* rval);
|
|
|
|
|
|
// consistent argc checking for normal function wrappers: reports an
|
|
// error via JS and returns if number of parameters is incorrect.
|
|
// .. require exact number (most common case)
|
|
#define JSU_REQUIRE_PARAMS(exact_number)\
|
|
if(argc != exact_number)\
|
|
return jsu_report_param_error(cx, rval);
|
|
// .. require 0 params (avoids L4 warning "unused argv param")
|
|
#define JSU_REQUIRE_NO_PARAMS()\
|
|
UNUSED2(argv);\
|
|
if(argc != 0)\
|
|
return jsu_report_param_error(cx, rval);
|
|
// .. require a certain range (e.g. due to optional params)
|
|
#define JSU_REQUIRE_PARAM_RANGE(min_number, max_number)\
|
|
if(!(min_number <= argc && argc <= max_number))\
|
|
return jsu_report_param_error(cx, rval);
|
|
// .. require at least a certain count (rarely needed)
|
|
#define JSU_REQUIRE_MIN_PARAMS(min_number)\
|
|
if(argc < min_number)\
|
|
return jsu_report_param_error(cx, rval);
|
|
|
|
// same as JSU_REQUIRE_PARAMS, but used from C++ functions that are
|
|
// a bit further removed from SpiderMonkey, i.e. return a
|
|
// C++ bool indicating success, and not taking an rval param.
|
|
#define JSU_REQUIRE_PARAMS_CPP(exact_number)\
|
|
if(argc != exact_number)\
|
|
{\
|
|
jsu_report_param_error(cx, 0);\
|
|
return false;\
|
|
}
|
|
|
|
|
|
#define JSU_ASSERT(expr, msg)\
|
|
STMT(\
|
|
if(!(expr))\
|
|
{\
|
|
JS_ReportError(cx, msg);\
|
|
return JS_FALSE;\
|
|
}\
|
|
)
|