JS::Value
js::value is the type of javascript values in the jsapi.
... a c++ variable of type js::value represents a value in javascript: a string, number, object (including arrays and functions), boolean, symbol, null, or undefined.
... js::value is a class whose internal structure is an implementation detail.
...And 16 more matches

Index
25 js::autovaluearray jsapi reference, reference, référence(2), spidermonkey js::autovaluearray<n> holds a rooted array of js::value.
... this is typically used for local variables being passed to function which requires js::handlevaluearray or a pointer to js::value array.
... 27 js::booleanvalue jsapi reference, reference, référence(2), spidermonkey js::booleanvalue converts a c boolean of type bool to js::value, the type of javascript values.
...And 21 more matches

WebIDL bindings
rg); }; will require these method declarations: class myclass { void dosomething(int32_t anumber); double dosomething(myclass* aotherinstance); already_addrefed<myinterface> dosomethingelse(optional<int32_t> amaybenumber, errorresult& rv); void dosomethingelse(myclass& aotherinstance, errorresult& rv); void dotheother(jscontext* cx, js::value asomething); void doyetanotherthing(bool aactuallydoit); static void staticoperation(const globalobject& aglobal, js::value asomething); } c++ reflections of webidl attributes a webidl attribute is turned into a pair of method calls for the getter and setter on the underlying c++ object.
... webidl type argument type return type dictionary/member type any js::handle<js::value> js::mutablehandle<js::value> js::value boolean bool bool bool byte int8_t int8_t int8_t bytestring const nsacstring& nscstring& (outparam) nsacstring& (outparam) nscstring date mozilla::dom::date domstring const nsastring& mozilla::dom::domstring& (outparam) nsastring& (outparam) nsstring& ...
... uint32_t uint32_t unsigned long long uint64_t uint64_t uint64_t unsigned short uint16_t uint16_t uint16_t usvstring const nsastring& mozilla::dom::domstring& (outparam) nsastring& (outparam) nsstring& (outparam) nsstring any any is represented in three different ways, depending on use: any arguments become js::handle<js::value>.
...And 10 more matches

JSAPI User Guide
javascript values main article: js::value javascript is a dynamically typed language: variables and properties do not have a type that is fixed at compile time.
...the jsapi provides a data type, js::value (also with a deprecated jsval typedef), which can contain javascript values of any type.
... a js::value can be a number, a string, a boolean value, a reference to an object (like an object, array, date, or function), or one of the special values null or undefined.
...And 7 more matches

GC Rooting Guide
the main types of gc thing pointer are: js::value jsobject* jsstring* jsscript* jsid note that js::value and jsid can contain pointers internally even though they are not a normal pointer type, hence their inclusion in this list.
...within spidermonkey, it is suggested that these are used in preference to the template class (gecko uses the template versions): template class typedef js::rooted<js::value> js::rootedvalue js::rooted<jsobject*> js::rootedobject js::rooted<jsstring*> js::rootedstring js::rooted<jsscript*> js::rootedscript js::rooted<jsid> js::rootedid for example, instead of this: jsobject* localobj = js_getobjectofsomesort(cx); you would write this: js::rootedobject localobj(cx, js_getobjectofsomesort(cx)); spidermonkey...
... similarly to js::rooted<t>, there are typedefs available for the main types: template class typedef js::handle<js::value> js::handlevalue js::handle<jsobject*> js::handleobject js::handle<jsstring*> js::handlestring js::handle<jsscript*> js::handlescript js::handle<jsid> js::handleid you should use js::handle<t> for all function parameters taking gc thing pointers (except out-parameters, which are described below).
...And 5 more matches

JSAPI Cookbook
basics working with values the basic, undifferentiated value type in the jsapi is js::value.
...but in a jsnative the correct way to do this is: /* jsapi */ bool mynative(jscontext *cx, unsigned argc, js::value *vp) { js::callargs args = js::callargsfromvp(argc, vp); jsobject *global = js_getglobalforobject(cx, &args.callee()); ...
... } defining a function // javascript function justforfun() { return null; } /* jsapi */ bool justforfun(jscontext *cx, unsigned argc, js::value *vp) { js::callargs args = js::callargsfromvp(argc, vp); args.rval().setnull(); return true; } ...
...And 5 more matches

JS::AutoValueArray
this article covers features introduced in spidermonkey 31 root an internal fixed-size array of js::values.
... n size_t size of a js::value array.
... description js::autovaluearray<n> holds a rooted array of js::value.
...And 4 more matches

JS_NumberValue
this article covers features introduced in spidermonkey 17 convert a c floating-point number of type double to a js::value.
... syntax // added in spidermonkey 42 js::value js_numbervalue(double d); // obsolete since spidermonkey 42 jsval js_numbervalue(double d); name type description d double the numeric value to convert.
... description js_numbervalue converts a c floating-point number of type double to js::value, the type of javascript values.
...And 3 more matches

JS::DoubleValue
this article covers features introduced in spidermonkey 24 convert a c floating-point number of type double to a js::value.
... syntax js::value js::doublevalue(double dbl) name type description dbl double c double to convert.
... description js::doublevalue converts a c floating-point number of type double to js::value, the type of javascript values.
...And 2 more matches

JS::Float32Value
this article covers features introduced in spidermonkey 24 convert a c floating-point number of type float to a js::value.
... syntax js::value js::float32value(float f) name type description f float c float to convert.
... description js::float32value converts a c floating-point number of type float to js::value, the type of javascript values.
...And 2 more matches

JS::Int32Value
this article covers features introduced in spidermonkey 24 convert a c signed 32-bit integer of type int32_t to a js::value.
... syntax js::value js::int32value(int32_t i32) name type description i32 int32_t c integer to convert.
... description js::int32value converts a c signed 32-bit integer of type int32_t to js::value, the type of javascript values.
...And 2 more matches

JS::BooleanValue
this article covers features introduced in spidermonkey 24 convert a c boolean of type bool to a js::value.
... syntax js::value js::booleanvalue(bool boo) name type description boo bool c bool to convert.
... description js::booleanvalue converts a c boolean of type bool to js::value, the type of javascript values.
... see also mxr id search for js::booleanvalue js::value js::truevalue js::falsevalue ...

JS::CallArgs
syntax js::callargs js::callargsfromvp(unsigned argc, js::value *vp); name type description args unsigned number of argument.
... (2nd argument of jsnative) vp js::value * a pointer to the argument value array.
... js::value computethis(jscontext *cx) const returns the this value if this is an object, otherwise calls js_computethis and returns it.
...the principal way to create a callargs is like so, using js::callargsfromvp: static bool functionreturningargctimesarg0(jscontext *cx, unsigned argc, js::value *vp) { js::callargs args = js::callargsfromvp(argc, vp); // guard against no arguments or a non-numeric arg0.

JS::DoubleNaNValue
this article covers features introduced in spidermonkey 24 create a not-a-number (nan) floating-point number as a value of type js::value.
... syntax js::value js::doublenanvalue() description js::doublenanvalue returns a value of type js::value that represents an ieee floating-point quiet not-a-number (nan).
... the result is an floating-point js::value.
... see also mxr id search for js::doublenanvalue js::value js_getnanvalue ...

JS::NumberValue
this article covers features introduced in spidermonkey 24 convert a c integer or floating-point value to a js::value.
... syntax js::value js::numbervalue(float f) js::value js::numbervalue(double dbl) js::value js::numbervalue(int8_t i) js::value js::numbervalue(uint8_t i) js::value js::numbervalue(int16_t i) js::value js::numbervalue(uint16_t i) js::value js::numbervalue(int32_t i) js::value js::numbervalue(uint32_t i) name type description f or dbl or i any c integer or floating-point value to convert.
... description js::numbervalue converts a c integer or floating-point value to js::value, the type of javascript values.
... see also mxr id search for js::numbervalue js::value js::int32value js::float32value js::doublevalue js_numbervalue ...