gecko-dev/dom/bindings/Bindings.conf

# DOM Bindings Configuration.
#
# The WebIDL interfaces are defined in dom/webidl. For each such interface, there
# is a corresponding entry in the configuration table below. The configuration
# table maps each interface name to a |descriptor| or list of |descriptor|s.
#
# Valid fields for all descriptors:
#   * nativeType - The native type (concrete class or XPCOM interface) that
#                  instances of this interface will unwrap to (required).
#   * headerFile - The file in which the nativeType is declared (defaults
#                  to an educated guess).
#   * castable - Indicates whether the value in the wrapper can be cast to
#                nativeType, or whether it needs to be QI-ed (defaults to True
#                for everything but callback interfaces).
#   * concrete - Indicates whether there exist objects with this interface as
#                their primary interface (defaults to True).
#   * prefable - Indicates whether this binding is subject to the about:config
#                pref, or whether it's always enabled (defaults to False).
#   * workers - Indicates whether the descriptor is intended to be used for
#               worker threads (defaults to false).
#   * customTrace - The native class will use a custom trace hook (defaults to
#                   true for workers, false otherwise).
#   * customFinalize - The native class will use a custom finalize hook
#                      (defaults to true for workers, false otherwise).
#   * notflattened - The native type does not have nsIClassInfo, so when
#                    wrapping it the right IID needs to be passed in.
#
#   The following fields are either a string, an array (defaults to an empty
#   array) or a dictionary with three possible keys (all, getterOnly and
#   setterOnly) each having such an array as the value
#
#   * infallible - attributes and methods specified in the .webidl file that
#                  cannot fail and therefore do not require the final nsresult&
#                  argument
#   * implicitJSContext - attributes and methods specified in the .webidl file
#                         that require a JSContext as the first argument
#   * resultNotAddRefed - attributes and methods specified in the .webidl file
#                         that do not AddRef the return value

DOMInterfaces = {

'XMLHttpRequest': [
{
    'nativeType': 'nsXMLHttpRequest',
    'prefable': True,
    'infallible': {
        'all': [
            'readyState', 'withCredentials', 'abort', 'statusText',
            'getAllResponseHeaders', 'overrideMimeType', 'mozBackgroundRequest',
            'multipart', 'channel', 'upload', 'status'
        ],
        'getterOnly': [
            'responseType', 'timeout', 'onreadystatechange'
        ]
    },
    'implicitJSContext': {
        'all': [
            'response', 'getInterface'
        ],
        'setterOnly': [
            'onreadystatechange'
        ]
    },
    'resultNotAddRefed': [ 'upload', 'responseXML' ]
},
{
    'workers': True,
    'nativeType': 'mozilla::dom::workers::XMLHttpRequest',
    'headerFile': 'mozilla/dom/workers/bindings/XMLHttpRequest.h',
    'infallible': [
        'readyState', 'statusText'
    ]
}],

'XMLHttpRequestUpload': [
{
    'nativeType': 'nsXMLHttpRequestUpload',
    'headerFile': 'nsXMLHttpRequest.h',
    'prefable': True
},
{
    'workers': True,
    'nativeType': 'mozilla::dom::workers::XMLHttpRequestUpload',
    'headerFile': 'mozilla/dom/workers/bindings/XMLHttpRequestUpload.h'
}],

'MozChannel': [
{
    'nativeType': 'nsIChannel',
    'prefable': True,
    'castable': False,
    'notflattened': True
},
{
    'workers': True,
    'nativeType': 'JSObject',
    'headerFile': 'jsapi.h',
    'castable': False
}],

'InputStream': [
{
    'nativeType': 'nsIInputStream',
    'prefable': True,
    'castable': False,
    'notflattened': True
},
{
    'workers': True,
    'nativeType': 'JSObject',
    'headerFile': 'jsapi.h',
    'castable': False
}],

'Document': [
{
    'nativeType': 'nsIDocument',
    'prefable': True,
    'castable': False
},
{
    'workers': True,
    'nativeType': 'JSObject',
    'headerFile': 'jsapi.h',
    'castable': False
}],

'Blob': [
{
    'nativeType': 'nsIDOMBlob',
    'headerFile': 'nsIDOMFile.h',
    'prefable': True,
    'castable': False
},
{
    'workers': True,
    'nativeType': 'JSObject',
    'headerFile': 'jsapi.h',
    'castable': False
}],

'FormData': [
{
    'nativeType': 'nsIDOMFormData',
    'prefable': True,
    'castable': False
},
{
    'workers': True,
    'nativeType': 'JSObject',
    'headerFile': 'jsapi.h',
    'castable': False
}],

'EventTarget': [
{
    'nativeType': 'nsDOMEventTargetHelper',
    'hasInstanceInterface': 'nsIDOMEventTarget',
    'concrete': False,
    'prefable': True,
},
{
    'workers': True,
    'nativeType': 'mozilla::dom::workers::EventTarget',
    'headerFile': 'mozilla/dom/workers/bindings/EventTarget.h',
    'concrete': False
}],

'Event': [
{
    'nativeType': 'nsIDOMEvent',
    'prefable': True,
    'castable': False
},
{
    'workers': True,
    'nativeType': 'JSObject',
    'headerFile': 'jsapi.h',
    'castable': False
}],

'EventListener': [
{
    'nativeType': 'nsIDOMEventListener',
    'prefable': True
},
{
    'workers': True,
    'nativeType': 'JSObject',
    'headerFile': 'jsapi.h'
}],

'XMLHttpRequestEventTarget': [
{
    'nativeType': 'nsXHREventTarget',
    'headerFile': 'nsXMLHttpRequest.h',
    'concrete': False,
    'prefable': True,
    'infallible': {
        'getterOnly': [
            'onabort', 'onerror', 'onload', 'onloadstart', 'onprogress',
            'ontimeout', 'onloadend'
        ]
    },
    'implicitJSContext': {
        'setterOnly': [
            'onabort', 'onerror', 'onload', 'onloadstart', 'onprogress',
            'ontimeout', 'onloadend'
        ]
    }
},
{
    'workers': True,
    'concrete': False,
    'nativeType': 'mozilla::dom::workers::XMLHttpRequestEventTarget',
    'headerFile': 'mozilla/dom/workers/bindings/XMLHttpRequestEventTarget.h'
}],

'IID': [
{
    'nativeType': 'nsIJSIID',
    'headerFile': 'xpcjsid.h',
    'prefable': True,
    'castable': False
},
{
    'workers': True,
    'nativeType': 'JSObject',
    'headerFile': 'jsapi.h',
    'castable': False
}],

}