forked from mirrors/gecko-dev
1684 lines
64 KiB
JavaScript
1684 lines
64 KiB
JavaScript
/*
|
||
Distributed under both the W3C Test Suite License [1] and the W3C
|
||
3-clause BSD License [2]. To contribute to a W3C Test Suite, see the
|
||
policies and contribution forms [3].
|
||
|
||
[1] http://www.w3.org/Consortium/Legal/2008/04-testsuite-license
|
||
[2] http://www.w3.org/Consortium/Legal/2008/03-bsd-license
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||
[3] http://www.w3.org/2004/10/27-testcases
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||
*/
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||
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||
/* For user documentation see docs/idlharness.md */
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||
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||
/**
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||
* Notes for people who want to edit this file (not just use it as a library):
|
||
*
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||
* Most of the interesting stuff happens in the derived classes of IdlObject,
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||
* especially IdlInterface. The entry point for all IdlObjects is .test(),
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||
* which is called by IdlArray.test(). An IdlObject is conceptually just
|
||
* "thing we want to run tests on", and an IdlArray is an array of IdlObjects
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||
* with some additional data thrown in.
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||
*
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||
* The object model is based on what WebIDLParser.js produces, which is in turn
|
||
* based on its pegjs grammar. If you want to figure out what properties an
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||
* object will have from WebIDLParser.js, the best way is to look at the
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||
* grammar:
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||
*
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||
* https://github.com/darobin/webidl.js/blob/master/lib/grammar.peg
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||
*
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||
* So for instance:
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||
*
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* // interface definition
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* interface
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||
* = extAttrs:extendedAttributeList? S? "interface" S name:identifier w herit:ifInheritance? w "{" w mem:ifMember* w "}" w ";" w
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* { return { type: "interface", name: name, inheritance: herit, members: mem, extAttrs: extAttrs }; }
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||
*
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||
* This means that an "interface" object will have a .type property equal to
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||
* the string "interface", a .name property equal to the identifier that the
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||
* parser found, an .inheritance property equal to either null or the result of
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||
* the "ifInheritance" production found elsewhere in the grammar, and so on.
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||
* After each grammatical production is a JavaScript function in curly braces
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||
* that gets called with suitable arguments and returns some JavaScript value.
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*
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* (Note that the version of WebIDLParser.js we use might sometimes be
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||
* out-of-date or forked.)
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*
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* The members and methods of the classes defined by this file are all at least
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||
* briefly documented, hopefully.
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*/
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(function(){
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"use strict";
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/// Helpers ///
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||
function constValue (cnt) {
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||
if (cnt.type === "null") return null;
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||
if (cnt.type === "NaN") return NaN;
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||
if (cnt.type === "Infinity") return cnt.negative ? -Infinity : Infinity;
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return cnt.value;
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||
}
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||
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||
function minOverloadLength(overloads) {
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if (!overloads.length) {
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||
return 0;
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||
}
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||
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||
return overloads.map(function(attr) {
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return attr.arguments ? attr.arguments.filter(function(arg) {
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return !arg.optional && !arg.variadic;
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}).length : 0;
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})
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.reduce(function(m, n) { return Math.min(m, n); });
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}
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/// IdlArray ///
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// Entry point
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self.IdlArray = function()
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//@{
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{
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/**
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* A map from strings to the corresponding named IdlObject, such as
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||
* IdlInterface or IdlException. These are the things that test() will run
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* tests on.
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||
*/
|
||
this.members = {};
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||
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||
/**
|
||
* A map from strings to arrays of strings. The keys are interface or
|
||
* exception names, and are expected to also exist as keys in this.members
|
||
* (otherwise they'll be ignored). This is populated by add_objects() --
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||
* see documentation at the start of the file. The actual tests will be
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||
* run by calling this.members[name].test_object(obj) for each obj in
|
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* this.objects[name]. obj is a string that will be eval'd to produce a
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||
* JavaScript value, which is supposed to be an object implementing the
|
||
* given IdlObject (interface, exception, etc.).
|
||
*/
|
||
this.objects = {};
|
||
|
||
/**
|
||
* When adding multiple collections of IDLs one at a time, an earlier one
|
||
* might contain a partial interface or implements statement that depends
|
||
* on a later one. Save these up and handle them right before we run
|
||
* tests.
|
||
*
|
||
* .partials is simply an array of objects from WebIDLParser.js'
|
||
* "partialinterface" production. .implements maps strings to arrays of
|
||
* strings, such that
|
||
*
|
||
* A implements B;
|
||
* A implements C;
|
||
* D implements E;
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||
*
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||
* results in { A: ["B", "C"], D: ["E"] }.
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||
*/
|
||
this.partials = [];
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||
this["implements"] = {};
|
||
};
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||
|
||
//@}
|
||
IdlArray.prototype.add_idls = function(raw_idls)
|
||
//@{
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||
{
|
||
/** Entry point. See documentation at beginning of file. */
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||
this.internal_add_idls(WebIDL2.parse(raw_idls));
|
||
};
|
||
|
||
//@}
|
||
IdlArray.prototype.add_untested_idls = function(raw_idls)
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||
//@{
|
||
{
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||
/** Entry point. See documentation at beginning of file. */
|
||
var parsed_idls = WebIDL2.parse(raw_idls);
|
||
for (var i = 0; i < parsed_idls.length; i++)
|
||
{
|
||
parsed_idls[i].untested = true;
|
||
if ("members" in parsed_idls[i])
|
||
{
|
||
for (var j = 0; j < parsed_idls[i].members.length; j++)
|
||
{
|
||
parsed_idls[i].members[j].untested = true;
|
||
}
|
||
}
|
||
}
|
||
this.internal_add_idls(parsed_idls);
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||
};
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||
|
||
//@}
|
||
IdlArray.prototype.internal_add_idls = function(parsed_idls)
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||
//@{
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||
{
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||
/**
|
||
* Internal helper called by add_idls() and add_untested_idls().
|
||
* parsed_idls is an array of objects that come from WebIDLParser.js's
|
||
* "definitions" production. The add_untested_idls() entry point
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||
* additionally sets an .untested property on each object (and its
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* .members) so that they'll be skipped by test() -- they'll only be
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||
* used for base interfaces of tested interfaces, return types, etc.
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||
*/
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||
parsed_idls.forEach(parsed_idl => {
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if (parsed_idl.type == "interface" && parsed_idl.partial)
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||
{
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||
this.partials.push(parsed_idl);
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||
return;
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||
}
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||
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||
if (parsed_idl.type == "implements")
|
||
{
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||
if (!(parsed_idl.target in this["implements"]))
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||
{
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||
this["implements"][parsed_idl.target] = [];
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||
}
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this["implements"][parsed_idl.target].push(parsed_idl["implements"]);
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return;
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||
}
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||
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||
parsed_idl.array = this;
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||
if (parsed_idl.name in this.members)
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||
{
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||
throw "Duplicate identifier " + parsed_idl.name;
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||
}
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||
switch(parsed_idl.type)
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{
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||
case "interface":
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||
this.members[parsed_idl.name] =
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||
new IdlInterface(parsed_idl, /* is_callback = */ false);
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||
break;
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||
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||
case "dictionary":
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||
// Nothing to test, but we need the dictionary info around for type
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||
// checks
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||
this.members[parsed_idl.name] = new IdlDictionary(parsed_idl);
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||
break;
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||
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||
case "typedef":
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||
this.members[parsed_idl.name] = new IdlTypedef(parsed_idl);
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||
break;
|
||
|
||
case "callback":
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||
// TODO
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||
console.log("callback not yet supported");
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||
break;
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||
|
||
case "enum":
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||
this.members[parsed_idl.name] = new IdlEnum(parsed_idl);
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||
break;
|
||
|
||
case "callback interface":
|
||
this.members[parsed_idl.name] =
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||
new IdlInterface(parsed_idl, /* is_callback = */ true);
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||
break;
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||
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||
default:
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||
throw parsed_idl.name + ": " + parsed_idl.type + " not yet supported";
|
||
}
|
||
});
|
||
};
|
||
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||
//@}
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||
IdlArray.prototype.add_objects = function(dict)
|
||
//@{
|
||
{
|
||
/** Entry point. See documentation at beginning of file. */
|
||
for (var k in dict)
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||
{
|
||
if (k in this.objects)
|
||
{
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||
this.objects[k] = this.objects[k].concat(dict[k]);
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||
}
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||
else
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||
{
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||
this.objects[k] = dict[k];
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||
}
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||
}
|
||
};
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||
|
||
//@}
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||
IdlArray.prototype.prevent_multiple_testing = function(name)
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||
//@{
|
||
{
|
||
/** Entry point. See documentation at beginning of file. */
|
||
this.members[name].prevent_multiple_testing = true;
|
||
};
|
||
|
||
//@}
|
||
IdlArray.prototype.recursively_get_implements = function(interface_name)
|
||
//@{
|
||
{
|
||
/**
|
||
* Helper function for test(). Returns an array of things that implement
|
||
* interface_name, so if the IDL contains
|
||
*
|
||
* A implements B;
|
||
* B implements C;
|
||
* B implements D;
|
||
*
|
||
* then recursively_get_implements("A") should return ["B", "C", "D"].
|
||
*/
|
||
var ret = this["implements"][interface_name];
|
||
if (ret === undefined)
|
||
{
|
||
return [];
|
||
}
|
||
for (var i = 0; i < this["implements"][interface_name].length; i++)
|
||
{
|
||
ret = ret.concat(this.recursively_get_implements(ret[i]));
|
||
if (ret.indexOf(ret[i]) != ret.lastIndexOf(ret[i]))
|
||
{
|
||
throw "Circular implements statements involving " + ret[i];
|
||
}
|
||
}
|
||
return ret;
|
||
};
|
||
|
||
//@}
|
||
IdlArray.prototype.test = function()
|
||
//@{
|
||
{
|
||
/** Entry point. See documentation at beginning of file. */
|
||
|
||
// First merge in all the partial interfaces and implements statements we
|
||
// encountered.
|
||
this.partials.forEach(parsed_idl => {
|
||
if (!(parsed_idl.name in this.members)
|
||
|| !(this.members[parsed_idl.name] instanceof IdlInterface))
|
||
{
|
||
throw "Partial interface " + parsed_idl.name + " with no original interface";
|
||
}
|
||
if (parsed_idl.extAttrs)
|
||
{
|
||
parsed_idl.extAttrs.forEach(extAttr => {
|
||
this.members[parsed_idl.name].extAttrs.push(extAttr);
|
||
});
|
||
}
|
||
parsed_idl.members.forEach(member => {
|
||
this.members[parsed_idl.name].members.push(new IdlInterfaceMember(member));
|
||
});
|
||
});
|
||
this.partials = [];
|
||
|
||
for (var lhs in this["implements"])
|
||
{
|
||
this.recursively_get_implements(lhs).forEach(rhs => {
|
||
var errStr = lhs + " implements " + rhs + ", but ";
|
||
if (!(lhs in this.members)) throw errStr + lhs + " is undefined.";
|
||
if (!(this.members[lhs] instanceof IdlInterface)) throw errStr + lhs + " is not an interface.";
|
||
if (!(rhs in this.members)) throw errStr + rhs + " is undefined.";
|
||
if (!(this.members[rhs] instanceof IdlInterface)) throw errStr + rhs + " is not an interface.";
|
||
this.members[rhs].members.forEach(member => {
|
||
this.members[lhs].members.push(new IdlInterfaceMember(member));
|
||
});
|
||
});
|
||
}
|
||
this["implements"] = {};
|
||
|
||
// Now run test() on every member, and test_object() for every object.
|
||
for (var name in this.members)
|
||
{
|
||
this.members[name].test();
|
||
if (name in this.objects)
|
||
{
|
||
this.objects[name].forEach(str => {
|
||
this.members[name].test_object(str);
|
||
});
|
||
}
|
||
}
|
||
};
|
||
|
||
//@}
|
||
IdlArray.prototype.assert_type_is = function(value, type)
|
||
//@{
|
||
{
|
||
/**
|
||
* Helper function that tests that value is an instance of type according
|
||
* to the rules of WebIDL. value is any JavaScript value, and type is an
|
||
* object produced by WebIDLParser.js' "type" production. That production
|
||
* is fairly elaborate due to the complexity of WebIDL's types, so it's
|
||
* best to look at the grammar to figure out what properties it might have.
|
||
*/
|
||
if (type.idlType == "any")
|
||
{
|
||
// No assertions to make
|
||
return;
|
||
}
|
||
|
||
if (type.nullable && value === null)
|
||
{
|
||
// This is fine
|
||
return;
|
||
}
|
||
|
||
if (type.array)
|
||
{
|
||
// TODO: not supported yet
|
||
return;
|
||
}
|
||
|
||
if (type.sequence)
|
||
{
|
||
assert_true(Array.isArray(value), "is not array");
|
||
if (!value.length)
|
||
{
|
||
// Nothing we can do.
|
||
return;
|
||
}
|
||
this.assert_type_is(value[0], type.idlType.idlType);
|
||
return;
|
||
}
|
||
|
||
type = type.idlType;
|
||
|
||
switch(type)
|
||
{
|
||
case "void":
|
||
assert_equals(value, undefined);
|
||
return;
|
||
|
||
case "boolean":
|
||
assert_equals(typeof value, "boolean");
|
||
return;
|
||
|
||
case "byte":
|
||
assert_equals(typeof value, "number");
|
||
assert_equals(value, Math.floor(value), "not an integer");
|
||
assert_true(-128 <= value && value <= 127, "byte " + value + " not in range [-128, 127]");
|
||
return;
|
||
|
||
case "octet":
|
||
assert_equals(typeof value, "number");
|
||
assert_equals(value, Math.floor(value), "not an integer");
|
||
assert_true(0 <= value && value <= 255, "octet " + value + " not in range [0, 255]");
|
||
return;
|
||
|
||
case "short":
|
||
assert_equals(typeof value, "number");
|
||
assert_equals(value, Math.floor(value), "not an integer");
|
||
assert_true(-32768 <= value && value <= 32767, "short " + value + " not in range [-32768, 32767]");
|
||
return;
|
||
|
||
case "unsigned short":
|
||
assert_equals(typeof value, "number");
|
||
assert_equals(value, Math.floor(value), "not an integer");
|
||
assert_true(0 <= value && value <= 65535, "unsigned short " + value + " not in range [0, 65535]");
|
||
return;
|
||
|
||
case "long":
|
||
assert_equals(typeof value, "number");
|
||
assert_equals(value, Math.floor(value), "not an integer");
|
||
assert_true(-2147483648 <= value && value <= 2147483647, "long " + value + " not in range [-2147483648, 2147483647]");
|
||
return;
|
||
|
||
case "unsigned long":
|
||
assert_equals(typeof value, "number");
|
||
assert_equals(value, Math.floor(value), "not an integer");
|
||
assert_true(0 <= value && value <= 4294967295, "unsigned long " + value + " not in range [0, 4294967295]");
|
||
return;
|
||
|
||
case "long long":
|
||
assert_equals(typeof value, "number");
|
||
return;
|
||
|
||
case "unsigned long long":
|
||
case "DOMTimeStamp":
|
||
assert_equals(typeof value, "number");
|
||
assert_true(0 <= value, "unsigned long long is negative");
|
||
return;
|
||
|
||
case "float":
|
||
case "double":
|
||
case "DOMHighResTimeStamp":
|
||
case "unrestricted float":
|
||
case "unrestricted double":
|
||
// TODO: distinguish these cases
|
||
assert_equals(typeof value, "number");
|
||
return;
|
||
|
||
case "DOMString":
|
||
case "ByteString":
|
||
case "USVString":
|
||
// TODO: https://github.com/w3c/testharness.js/issues/92
|
||
assert_equals(typeof value, "string");
|
||
return;
|
||
|
||
case "object":
|
||
assert_true(typeof value == "object" || typeof value == "function", "wrong type: not object or function");
|
||
return;
|
||
}
|
||
|
||
if (!(type in this.members))
|
||
{
|
||
throw "Unrecognized type " + type;
|
||
}
|
||
|
||
if (this.members[type] instanceof IdlInterface)
|
||
{
|
||
// We don't want to run the full
|
||
// IdlInterface.prototype.test_instance_of, because that could result
|
||
// in an infinite loop. TODO: This means we don't have tests for
|
||
// NoInterfaceObject interfaces, and we also can't test objects that
|
||
// come from another self.
|
||
assert_true(typeof value == "object" || typeof value == "function", "wrong type: not object or function");
|
||
if (value instanceof Object
|
||
&& !this.members[type].has_extended_attribute("NoInterfaceObject")
|
||
&& type in self)
|
||
{
|
||
assert_true(value instanceof self[type], "not instanceof " + type);
|
||
}
|
||
}
|
||
else if (this.members[type] instanceof IdlEnum)
|
||
{
|
||
assert_equals(typeof value, "string");
|
||
}
|
||
else if (this.members[type] instanceof IdlDictionary)
|
||
{
|
||
// TODO: Test when we actually have something to test this on
|
||
}
|
||
else if (this.members[type] instanceof IdlTypedef)
|
||
{
|
||
// TODO: Test when we actually have something to test this on
|
||
}
|
||
else
|
||
{
|
||
throw "Type " + type + " isn't an interface or dictionary";
|
||
}
|
||
};
|
||
//@}
|
||
|
||
/// IdlObject ///
|
||
function IdlObject() {}
|
||
IdlObject.prototype.test = function()
|
||
//@{
|
||
{
|
||
/**
|
||
* By default, this does nothing, so no actual tests are run for IdlObjects
|
||
* that don't define any (e.g., IdlDictionary at the time of this writing).
|
||
*/
|
||
};
|
||
|
||
//@}
|
||
IdlObject.prototype.has_extended_attribute = function(name)
|
||
//@{
|
||
{
|
||
/**
|
||
* This is only meaningful for things that support extended attributes,
|
||
* such as interfaces, exceptions, and members.
|
||
*/
|
||
return this.extAttrs.some(function(o)
|
||
{
|
||
return o.name == name;
|
||
});
|
||
};
|
||
|
||
//@}
|
||
|
||
/// IdlDictionary ///
|
||
// Used for IdlArray.prototype.assert_type_is
|
||
function IdlDictionary(obj)
|
||
//@{
|
||
{
|
||
/**
|
||
* obj is an object produced by the WebIDLParser.js "dictionary"
|
||
* production.
|
||
*/
|
||
|
||
/** Self-explanatory. */
|
||
this.name = obj.name;
|
||
|
||
/** An array of objects produced by the "dictionaryMember" production. */
|
||
this.members = obj.members;
|
||
|
||
/**
|
||
* The name (as a string) of the dictionary type we inherit from, or null
|
||
* if there is none.
|
||
*/
|
||
this.base = obj.inheritance;
|
||
}
|
||
|
||
//@}
|
||
IdlDictionary.prototype = Object.create(IdlObject.prototype);
|
||
|
||
/// IdlInterface ///
|
||
function IdlInterface(obj, is_callback) {
|
||
/**
|
||
* obj is an object produced by the WebIDLParser.js "exception" or
|
||
* "interface" production, as appropriate.
|
||
*/
|
||
|
||
/** Self-explanatory. */
|
||
this.name = obj.name;
|
||
|
||
/** A back-reference to our IdlArray. */
|
||
this.array = obj.array;
|
||
|
||
/**
|
||
* An indicator of whether we should run tests on the (exception) interface
|
||
* object and (exception) interface prototype object. Tests on members are
|
||
* controlled by .untested on each member, not this.
|
||
*/
|
||
this.untested = obj.untested;
|
||
|
||
/** An array of objects produced by the "ExtAttr" production. */
|
||
this.extAttrs = obj.extAttrs;
|
||
|
||
/** An array of IdlInterfaceMembers. */
|
||
this.members = obj.members.map(function(m){return new IdlInterfaceMember(m); });
|
||
if (this.has_extended_attribute("Unforgeable")) {
|
||
this.members
|
||
.filter(function(m) { return !m["static"] && (m.type == "attribute" || m.type == "operation"); })
|
||
.forEach(function(m) { return m.isUnforgeable = true; });
|
||
}
|
||
|
||
/**
|
||
* The name (as a string) of the type we inherit from, or null if there is
|
||
* none.
|
||
*/
|
||
this.base = obj.inheritance;
|
||
|
||
this._is_callback = is_callback;
|
||
}
|
||
IdlInterface.prototype = Object.create(IdlObject.prototype);
|
||
IdlInterface.prototype.is_callback = function()
|
||
//@{
|
||
{
|
||
return this._is_callback;
|
||
};
|
||
//@}
|
||
|
||
IdlInterface.prototype.has_constants = function()
|
||
//@{
|
||
{
|
||
return this.members.some(function(member) {
|
||
return member.type === "const";
|
||
});
|
||
};
|
||
//@}
|
||
|
||
IdlInterface.prototype.is_global = function()
|
||
//@{
|
||
{
|
||
return this.extAttrs.some(function(attribute) {
|
||
return attribute.name === "Global" ||
|
||
attribute.name === "PrimaryGlobal";
|
||
});
|
||
};
|
||
//@}
|
||
|
||
IdlInterface.prototype.test = function()
|
||
//@{
|
||
{
|
||
if (this.has_extended_attribute("NoInterfaceObject"))
|
||
{
|
||
// No tests to do without an instance. TODO: We should still be able
|
||
// to run tests on the prototype object, if we obtain one through some
|
||
// other means.
|
||
return;
|
||
}
|
||
|
||
if (!this.untested)
|
||
{
|
||
// First test things to do with the exception/interface object and
|
||
// exception/interface prototype object.
|
||
this.test_self();
|
||
}
|
||
// Then test things to do with its members (constants, fields, attributes,
|
||
// operations, . . .). These are run even if .untested is true, because
|
||
// members might themselves be marked as .untested. This might happen to
|
||
// interfaces if the interface itself is untested but a partial interface
|
||
// that extends it is tested -- then the interface itself and its initial
|
||
// members will be marked as untested, but the members added by the partial
|
||
// interface are still tested.
|
||
this.test_members();
|
||
};
|
||
//@}
|
||
|
||
IdlInterface.prototype.test_self = function()
|
||
//@{
|
||
{
|
||
test(() => {
|
||
// This function tests WebIDL as of 2015-01-13.
|
||
// TODO: Consider [Exposed].
|
||
|
||
// "For every interface that is exposed in a given ECMAScript global
|
||
// environment and:
|
||
// * is a callback interface that has constants declared on it, or
|
||
// * is a non-callback interface that is not declared with the
|
||
// [NoInterfaceObject] extended attribute,
|
||
// a corresponding property MUST exist on the ECMAScript global object.
|
||
// The name of the property is the identifier of the interface, and its
|
||
// value is an object called the interface object.
|
||
// The property has the attributes { [[Writable]]: true,
|
||
// [[Enumerable]]: false, [[Configurable]]: true }."
|
||
if (this.is_callback() && !this.has_constants()) {
|
||
return;
|
||
}
|
||
|
||
// TODO: Should we test here that the property is actually writable
|
||
// etc., or trust getOwnPropertyDescriptor?
|
||
assert_own_property(self, this.name,
|
||
"self does not have own property " + format_value(this.name));
|
||
var desc = Object.getOwnPropertyDescriptor(self, this.name);
|
||
assert_false("get" in desc, "self's property " + format_value(this.name) + " has getter");
|
||
assert_false("set" in desc, "self's property " + format_value(this.name) + " has setter");
|
||
assert_true(desc.writable, "self's property " + format_value(this.name) + " is not writable");
|
||
assert_false(desc.enumerable, "self's property " + format_value(this.name) + " is enumerable");
|
||
assert_true(desc.configurable, "self's property " + format_value(this.name) + " is not configurable");
|
||
|
||
if (this.is_callback()) {
|
||
// "The internal [[Prototype]] property of an interface object for
|
||
// a callback interface MUST be the Object.prototype object."
|
||
assert_equals(Object.getPrototypeOf(self[this.name]), Object.prototype,
|
||
"prototype of self's property " + format_value(this.name) + " is not Object.prototype");
|
||
|
||
return;
|
||
}
|
||
|
||
// "The interface object for a given non-callback interface is a
|
||
// function object."
|
||
// "If an object is defined to be a function object, then it has
|
||
// characteristics as follows:"
|
||
|
||
// Its [[Prototype]] internal property is otherwise specified (see
|
||
// below).
|
||
|
||
// "* Its [[Get]] internal property is set as described in ECMA-262
|
||
// section 9.1.8."
|
||
// Not much to test for this.
|
||
|
||
// "* Its [[Construct]] internal property is set as described in
|
||
// ECMA-262 section 19.2.2.3."
|
||
// Tested below if no constructor is defined. TODO: test constructors
|
||
// if defined.
|
||
|
||
// "* Its @@hasInstance property is set as described in ECMA-262
|
||
// section 19.2.3.8, unless otherwise specified."
|
||
// TODO
|
||
|
||
// ES6 (rev 30) 19.1.3.6:
|
||
// "Else, if O has a [[Call]] internal method, then let builtinTag be
|
||
// "Function"."
|
||
assert_class_string(self[this.name], "Function", "class string of " + this.name);
|
||
|
||
// "The [[Prototype]] internal property of an interface object for a
|
||
// non-callback interface is determined as follows:"
|
||
var prototype = Object.getPrototypeOf(self[this.name]);
|
||
if (this.base) {
|
||
// "* If the interface inherits from some other interface, the
|
||
// value of [[Prototype]] is the interface object for that other
|
||
// interface."
|
||
var has_interface_object =
|
||
!this.array
|
||
.members[this.base]
|
||
.has_extended_attribute("NoInterfaceObject");
|
||
if (has_interface_object) {
|
||
assert_own_property(self, this.base,
|
||
'should inherit from ' + this.base +
|
||
', but self has no such property');
|
||
assert_equals(prototype, self[this.base],
|
||
'prototype of ' + this.name + ' is not ' +
|
||
this.base);
|
||
}
|
||
} else {
|
||
// "If the interface doesn't inherit from any other interface, the
|
||
// value of [[Prototype]] is %FunctionPrototype% ([ECMA-262],
|
||
// section 6.1.7.4)."
|
||
assert_equals(prototype, Function.prototype,
|
||
"prototype of self's property " + format_value(this.name) + " is not Function.prototype");
|
||
}
|
||
|
||
if (!this.has_extended_attribute("Constructor")) {
|
||
// "The internal [[Call]] method of the interface object behaves as
|
||
// follows . . .
|
||
//
|
||
// "If I was not declared with a [Constructor] extended attribute,
|
||
// then throw a TypeError."
|
||
assert_throws(new TypeError(), () => {
|
||
self[this.name]();
|
||
}, "interface object didn't throw TypeError when called as a function");
|
||
assert_throws(new TypeError(), () => {
|
||
new self[this.name]();
|
||
}, "interface object didn't throw TypeError when called as a constructor");
|
||
}
|
||
}, this.name + " interface: existence and properties of interface object");
|
||
|
||
if (!this.is_callback()) {
|
||
test(() => {
|
||
// This function tests WebIDL as of 2014-10-25.
|
||
// https://heycam.github.io/webidl/#es-interface-call
|
||
|
||
assert_own_property(self, this.name,
|
||
"self does not have own property " + format_value(this.name));
|
||
|
||
// "Interface objects for non-callback interfaces MUST have a
|
||
// property named “length” with attributes { [[Writable]]: false,
|
||
// [[Enumerable]]: false, [[Configurable]]: true } whose value is
|
||
// a Number."
|
||
assert_own_property(self[this.name], "length");
|
||
var desc = Object.getOwnPropertyDescriptor(self[this.name], "length");
|
||
assert_false("get" in desc, this.name + ".length has getter");
|
||
assert_false("set" in desc, this.name + ".length has setter");
|
||
assert_false(desc.writable, this.name + ".length is writable");
|
||
assert_false(desc.enumerable, this.name + ".length is enumerable");
|
||
assert_true(desc.configurable, this.name + ".length is not configurable");
|
||
|
||
var constructors = this.extAttrs
|
||
.filter(function(attr) { return attr.name == "Constructor"; });
|
||
var expected_length = minOverloadLength(constructors);
|
||
assert_equals(self[this.name].length, expected_length, "wrong value for " + this.name + ".length");
|
||
}, this.name + " interface object length");
|
||
}
|
||
|
||
// TODO: Test named constructors if I find any interfaces that have them.
|
||
|
||
test(() => {
|
||
// This function tests WebIDL as of 2015-01-21.
|
||
// https://heycam.github.io/webidl/#interface-object
|
||
|
||
if (this.is_callback() && !this.has_constants()) {
|
||
return;
|
||
}
|
||
|
||
assert_own_property(self, this.name,
|
||
"self does not have own property " + format_value(this.name));
|
||
|
||
if (this.is_callback()) {
|
||
assert_false("prototype" in self[this.name],
|
||
this.name + ' should not have a "prototype" property');
|
||
return;
|
||
}
|
||
|
||
// "An interface object for a non-callback interface must have a
|
||
// property named “prototype” with attributes { [[Writable]]: false,
|
||
// [[Enumerable]]: false, [[Configurable]]: false } whose value is an
|
||
// object called the interface prototype object. This object has
|
||
// properties that correspond to the regular attributes and regular
|
||
// operations defined on the interface, and is described in more detail
|
||
// in section 4.5.4 below."
|
||
assert_own_property(self[this.name], "prototype",
|
||
'interface "' + this.name + '" does not have own property "prototype"');
|
||
var desc = Object.getOwnPropertyDescriptor(self[this.name], "prototype");
|
||
assert_false("get" in desc, this.name + ".prototype has getter");
|
||
assert_false("set" in desc, this.name + ".prototype has setter");
|
||
assert_false(desc.writable, this.name + ".prototype is writable");
|
||
assert_false(desc.enumerable, this.name + ".prototype is enumerable");
|
||
assert_false(desc.configurable, this.name + ".prototype is configurable");
|
||
|
||
// Next, test that the [[Prototype]] of the interface prototype object
|
||
// is correct. (This is made somewhat difficult by the existence of
|
||
// [NoInterfaceObject].)
|
||
// TODO: Aryeh thinks there's at least other place in this file where
|
||
// we try to figure out if an interface prototype object is
|
||
// correct. Consolidate that code.
|
||
|
||
// "The interface prototype object for a given interface A must have an
|
||
// internal [[Prototype]] property whose value is returned from the
|
||
// following steps:
|
||
// "If A is declared with the [Global] or [PrimaryGlobal] extended
|
||
// attribute, and A supports named properties, then return the named
|
||
// properties object for A, as defined in section 4.5.5 below.
|
||
// "Otherwise, if A is declared to inherit from another interface, then
|
||
// return the interface prototype object for the inherited interface.
|
||
// "Otherwise, if A is declared with the [ArrayClass] extended
|
||
// attribute, then return %ArrayPrototype% ([ECMA-262], section
|
||
// 6.1.7.4).
|
||
// "Otherwise, return %ObjectPrototype% ([ECMA-262], section 6.1.7.4).
|
||
// ([ECMA-262], section 15.2.4).
|
||
if (this.name === "Window") {
|
||
assert_class_string(Object.getPrototypeOf(self[this.name].prototype),
|
||
'WindowProperties',
|
||
'Class name for prototype of Window' +
|
||
'.prototype is not "WindowProperties"');
|
||
} else {
|
||
var inherit_interface, inherit_interface_has_interface_object;
|
||
if (this.base) {
|
||
inherit_interface = this.base;
|
||
inherit_interface_has_interface_object =
|
||
!this.array
|
||
.members[inherit_interface]
|
||
.has_extended_attribute("NoInterfaceObject");
|
||
} else if (this.has_extended_attribute('ArrayClass')) {
|
||
inherit_interface = 'Array';
|
||
inherit_interface_has_interface_object = true;
|
||
} else {
|
||
inherit_interface = 'Object';
|
||
inherit_interface_has_interface_object = true;
|
||
}
|
||
if (inherit_interface_has_interface_object) {
|
||
assert_own_property(self, inherit_interface,
|
||
'should inherit from ' + inherit_interface + ', but self has no such property');
|
||
assert_own_property(self[inherit_interface], 'prototype',
|
||
'should inherit from ' + inherit_interface + ', but that object has no "prototype" property');
|
||
assert_equals(Object.getPrototypeOf(self[this.name].prototype),
|
||
self[inherit_interface].prototype,
|
||
'prototype of ' + this.name + '.prototype is not ' + inherit_interface + '.prototype');
|
||
} else {
|
||
// We can't test that we get the correct object, because this is the
|
||
// only way to get our hands on it. We only test that its class
|
||
// string, at least, is correct.
|
||
assert_class_string(Object.getPrototypeOf(self[this.name].prototype),
|
||
inherit_interface + 'Prototype',
|
||
'Class name for prototype of ' + this.name +
|
||
'.prototype is not "' + inherit_interface + 'Prototype"');
|
||
}
|
||
}
|
||
|
||
// "The class string of an interface prototype object is the
|
||
// concatenation of the interface’s identifier and the string
|
||
// “Prototype”."
|
||
assert_class_string(self[this.name].prototype, this.name + "Prototype",
|
||
"class string of " + this.name + ".prototype");
|
||
// String() should end up calling {}.toString if nothing defines a
|
||
// stringifier.
|
||
if (!this.has_stringifier()) {
|
||
assert_equals(String(self[this.name].prototype), "[object " + this.name + "Prototype]",
|
||
"String(" + this.name + ".prototype)");
|
||
}
|
||
}, this.name + " interface: existence and properties of interface prototype object");
|
||
|
||
test(() => {
|
||
if (this.is_callback() && !this.has_constants()) {
|
||
return;
|
||
}
|
||
|
||
assert_own_property(self, this.name,
|
||
"self does not have own property " + format_value(this.name));
|
||
|
||
if (this.is_callback()) {
|
||
assert_false("prototype" in self[this.name],
|
||
this.name + ' should not have a "prototype" property');
|
||
return;
|
||
}
|
||
|
||
assert_own_property(self[this.name], "prototype",
|
||
'interface "' + this.name + '" does not have own property "prototype"');
|
||
|
||
// "If the [NoInterfaceObject] extended attribute was not specified on
|
||
// the interface, then the interface prototype object must also have a
|
||
// property named “constructor” with attributes { [[Writable]]: true,
|
||
// [[Enumerable]]: false, [[Configurable]]: true } whose value is a
|
||
// reference to the interface object for the interface."
|
||
assert_own_property(self[this.name].prototype, "constructor",
|
||
this.name + '.prototype does not have own property "constructor"');
|
||
var desc = Object.getOwnPropertyDescriptor(self[this.name].prototype, "constructor");
|
||
assert_false("get" in desc, this.name + ".prototype.constructor has getter");
|
||
assert_false("set" in desc, this.name + ".prototype.constructor has setter");
|
||
assert_true(desc.writable, this.name + ".prototype.constructor is not writable");
|
||
assert_false(desc.enumerable, this.name + ".prototype.constructor is enumerable");
|
||
assert_true(desc.configurable, this.name + ".prototype.constructor in not configurable");
|
||
assert_equals(self[this.name].prototype.constructor, self[this.name],
|
||
this.name + '.prototype.constructor is not the same object as ' + this.name);
|
||
}, this.name + ' interface: existence and properties of interface prototype object\'s "constructor" property');
|
||
};
|
||
|
||
//@}
|
||
IdlInterface.prototype.test_member_const = function(member)
|
||
//@{
|
||
{
|
||
test(() => {
|
||
if (this.is_callback() && !this.has_constants()) {
|
||
return;
|
||
}
|
||
|
||
assert_own_property(self, this.name,
|
||
"self does not have own property " + format_value(this.name));
|
||
|
||
// "For each constant defined on an interface A, there must be
|
||
// a corresponding property on the interface object, if it
|
||
// exists."
|
||
assert_own_property(self[this.name], member.name);
|
||
// "The value of the property is that which is obtained by
|
||
// converting the constant’s IDL value to an ECMAScript
|
||
// value."
|
||
assert_equals(self[this.name][member.name], constValue(member.value),
|
||
"property has wrong value");
|
||
// "The property has attributes { [[Writable]]: false,
|
||
// [[Enumerable]]: true, [[Configurable]]: false }."
|
||
var desc = Object.getOwnPropertyDescriptor(self[this.name], member.name);
|
||
assert_false("get" in desc, "property has getter");
|
||
assert_false("set" in desc, "property has setter");
|
||
assert_false(desc.writable, "property is writable");
|
||
assert_true(desc.enumerable, "property is not enumerable");
|
||
assert_false(desc.configurable, "property is configurable");
|
||
}, this.name + " interface: constant " + member.name + " on interface object");
|
||
// "In addition, a property with the same characteristics must
|
||
// exist on the interface prototype object."
|
||
test(() => {
|
||
if (this.is_callback() && !this.has_constants()) {
|
||
return;
|
||
}
|
||
|
||
assert_own_property(self, this.name,
|
||
"self does not have own property " + format_value(this.name));
|
||
|
||
if (this.is_callback()) {
|
||
assert_false("prototype" in self[this.name],
|
||
this.name + ' should not have a "prototype" property');
|
||
return;
|
||
}
|
||
|
||
assert_own_property(self[this.name], "prototype",
|
||
'interface "' + this.name + '" does not have own property "prototype"');
|
||
|
||
assert_own_property(self[this.name].prototype, member.name);
|
||
assert_equals(self[this.name].prototype[member.name], constValue(member.value),
|
||
"property has wrong value");
|
||
var desc = Object.getOwnPropertyDescriptor(self[this.name], member.name);
|
||
assert_false("get" in desc, "property has getter");
|
||
assert_false("set" in desc, "property has setter");
|
||
assert_false(desc.writable, "property is writable");
|
||
assert_true(desc.enumerable, "property is not enumerable");
|
||
assert_false(desc.configurable, "property is configurable");
|
||
}, this.name + " interface: constant " + member.name + " on interface prototype object");
|
||
};
|
||
|
||
|
||
//@}
|
||
IdlInterface.prototype.test_member_attribute = function(member)
|
||
//@{
|
||
{
|
||
test(() => {
|
||
if (this.is_callback() && !this.has_constants()) {
|
||
return;
|
||
}
|
||
|
||
assert_own_property(self, this.name,
|
||
"self does not have own property " + format_value(this.name));
|
||
assert_own_property(self[this.name], "prototype",
|
||
'interface "' + this.name + '" does not have own property "prototype"');
|
||
|
||
if (member["static"]) {
|
||
assert_own_property(self[this.name], member.name,
|
||
"The interface object must have a property " +
|
||
format_value(member.name));
|
||
} else if (this.is_global()) {
|
||
assert_own_property(self, member.name,
|
||
"The global object must have a property " +
|
||
format_value(member.name));
|
||
assert_false(member.name in self[this.name].prototype,
|
||
"The prototype object must not have a property " +
|
||
format_value(member.name));
|
||
|
||
// Try/catch around the get here, since it can legitimately throw.
|
||
// If it does, we obviously can't check for equality with direct
|
||
// invocation of the getter.
|
||
var gotValue;
|
||
var propVal;
|
||
try {
|
||
propVal = self[member.name];
|
||
gotValue = true;
|
||
} catch (e) {
|
||
gotValue = false;
|
||
}
|
||
if (gotValue) {
|
||
var getter = Object.getOwnPropertyDescriptor(self, member.name).get;
|
||
assert_equals(typeof(getter), "function",
|
||
format_value(member.name) + " must have a getter");
|
||
assert_equals(propVal, getter.call(undefined),
|
||
"Gets on a global should not require an explicit this");
|
||
}
|
||
this.do_interface_attribute_asserts(self, member);
|
||
} else {
|
||
assert_true(member.name in self[this.name].prototype,
|
||
"The prototype object must have a property " +
|
||
format_value(member.name));
|
||
|
||
if (!member.has_extended_attribute("LenientThis")) {
|
||
assert_throws(new TypeError(), () => {
|
||
self[this.name].prototype[member.name];
|
||
}, "getting property on prototype object must throw TypeError");
|
||
} else {
|
||
assert_equals(self[this.name].prototype[member.name], undefined,
|
||
"getting property on prototype object must return undefined");
|
||
}
|
||
this.do_interface_attribute_asserts(self[this.name].prototype, member);
|
||
}
|
||
}, this.name + " interface: attribute " + member.name);
|
||
};
|
||
|
||
//@}
|
||
IdlInterface.prototype.test_member_operation = function(member)
|
||
//@{
|
||
{
|
||
test(() => {
|
||
if (this.is_callback() && !this.has_constants()) {
|
||
return;
|
||
}
|
||
|
||
assert_own_property(self, this.name,
|
||
"self does not have own property " + format_value(this.name));
|
||
|
||
if (this.is_callback()) {
|
||
assert_false("prototype" in self[this.name],
|
||
this.name + ' should not have a "prototype" property');
|
||
return;
|
||
}
|
||
|
||
assert_own_property(self[this.name], "prototype",
|
||
'interface "' + this.name + '" does not have own property "prototype"');
|
||
|
||
// "For each unique identifier of an operation defined on the
|
||
// interface, there must be a corresponding property on the
|
||
// interface prototype object (if it is a regular operation) or
|
||
// the interface object (if it is a static operation), unless
|
||
// the effective overload set for that identifier and operation
|
||
// and with an argument count of 0 (for the ECMAScript language
|
||
// binding) has no entries."
|
||
//
|
||
var memberHolderObject;
|
||
if (member["static"]) {
|
||
assert_own_property(self[this.name], member.name,
|
||
"interface object missing static operation");
|
||
memberHolderObject = self[this.name];
|
||
} else if (this.is_global()) {
|
||
assert_own_property(self, member.name,
|
||
"global object missing non-static operation");
|
||
memberHolderObject = self;
|
||
} else {
|
||
assert_own_property(self[this.name].prototype, member.name,
|
||
"interface prototype object missing non-static operation");
|
||
memberHolderObject = self[this.name].prototype;
|
||
}
|
||
|
||
this.do_member_operation_asserts(memberHolderObject, member);
|
||
}, this.name + " interface: operation " + member.name +
|
||
"(" + member.arguments.map(function(m) { return m.idlType.idlType; }) +
|
||
")");
|
||
};
|
||
|
||
//@}
|
||
IdlInterface.prototype.do_member_operation_asserts = function(memberHolderObject, member)
|
||
//@{
|
||
{
|
||
var operationUnforgeable = member.isUnforgeable;
|
||
var desc = Object.getOwnPropertyDescriptor(memberHolderObject, member.name);
|
||
// "The property has attributes { [[Writable]]: B,
|
||
// [[Enumerable]]: true, [[Configurable]]: B }, where B is false if the
|
||
// operation is unforgeable on the interface, and true otherwise".
|
||
assert_false("get" in desc, "property has getter");
|
||
assert_false("set" in desc, "property has setter");
|
||
assert_equals(desc.writable, !operationUnforgeable,
|
||
"property should be writable if and only if not unforgeable");
|
||
assert_true(desc.enumerable, "property is not enumerable");
|
||
assert_equals(desc.configurable, !operationUnforgeable,
|
||
"property should be configurable if and only if not unforgeable");
|
||
// "The value of the property is a Function object whose
|
||
// behavior is as follows . . ."
|
||
assert_equals(typeof memberHolderObject[member.name], "function",
|
||
"property must be a function");
|
||
// "The value of the Function object’s “length” property is
|
||
// a Number determined as follows:
|
||
// ". . .
|
||
// "Return the length of the shortest argument list of the
|
||
// entries in S."
|
||
assert_equals(memberHolderObject[member.name].length,
|
||
minOverloadLength(this.members.filter(function(m) {
|
||
return m.type == "operation" && m.name == member.name;
|
||
})),
|
||
"property has wrong .length");
|
||
|
||
// Make some suitable arguments
|
||
var args = member.arguments.map(function(arg) {
|
||
return create_suitable_object(arg.idlType);
|
||
});
|
||
|
||
// "Let O be a value determined as follows:
|
||
// ". . .
|
||
// "Otherwise, throw a TypeError."
|
||
// This should be hit if the operation is not static, there is
|
||
// no [ImplicitThis] attribute, and the this value is null.
|
||
//
|
||
// TODO: We currently ignore the [ImplicitThis] case. Except we manually
|
||
// check for globals, since otherwise we'll invoke window.close(). And we
|
||
// have to skip this test for anything that on the proto chain of "self",
|
||
// since that does in fact have implicit-this behavior.
|
||
if (!member["static"]) {
|
||
if (!this.is_global() &&
|
||
memberHolderObject[member.name] != self[member.name])
|
||
{
|
||
assert_throws(new TypeError(), function() {
|
||
memberHolderObject[member.name].apply(null, args);
|
||
}, "calling operation with this = null didn't throw TypeError");
|
||
}
|
||
|
||
// ". . . If O is not null and is also not a platform object
|
||
// that implements interface I, throw a TypeError."
|
||
//
|
||
// TODO: Test a platform object that implements some other
|
||
// interface. (Have to be sure to get inheritance right.)
|
||
assert_throws(new TypeError(), function() {
|
||
memberHolderObject[member.name].apply({}, args);
|
||
}, "calling operation with this = {} didn't throw TypeError");
|
||
}
|
||
}
|
||
|
||
//@}
|
||
IdlInterface.prototype.test_member_stringifier = function(member)
|
||
//@{
|
||
{
|
||
test(() => {
|
||
if (this.is_callback() && !this.has_constants()) {
|
||
return;
|
||
}
|
||
|
||
assert_own_property(self, this.name,
|
||
"self does not have own property " + format_value(this.name));
|
||
|
||
if (this.is_callback()) {
|
||
assert_false("prototype" in self[this.name],
|
||
this.name + ' should not have a "prototype" property');
|
||
return;
|
||
}
|
||
|
||
assert_own_property(self[this.name], "prototype",
|
||
'interface "' + this.name + '" does not have own property "prototype"');
|
||
|
||
// ". . . the property exists on the interface prototype object."
|
||
var interfacePrototypeObject = self[this.name].prototype;
|
||
assert_own_property(self[this.name].prototype, "toString",
|
||
"interface prototype object missing non-static operation");
|
||
|
||
var stringifierUnforgeable = member.isUnforgeable;
|
||
var desc = Object.getOwnPropertyDescriptor(interfacePrototypeObject, "toString");
|
||
// "The property has attributes { [[Writable]]: B,
|
||
// [[Enumerable]]: true, [[Configurable]]: B }, where B is false if the
|
||
// stringifier is unforgeable on the interface, and true otherwise."
|
||
assert_false("get" in desc, "property has getter");
|
||
assert_false("set" in desc, "property has setter");
|
||
assert_equals(desc.writable, !stringifierUnforgeable,
|
||
"property should be writable if and only if not unforgeable");
|
||
assert_true(desc.enumerable, "property is not enumerable");
|
||
assert_equals(desc.configurable, !stringifierUnforgeable,
|
||
"property should be configurable if and only if not unforgeable");
|
||
// "The value of the property is a Function object, which behaves as
|
||
// follows . . ."
|
||
assert_equals(typeof interfacePrototypeObject.toString, "function",
|
||
"property must be a function");
|
||
// "The value of the Function object’s “length” property is the Number
|
||
// value 0."
|
||
assert_equals(interfacePrototypeObject.toString.length, 0,
|
||
"property has wrong .length");
|
||
|
||
// "Let O be the result of calling ToObject on the this value."
|
||
assert_throws(new TypeError(), function() {
|
||
self[this.name].prototype.toString.apply(null, []);
|
||
}, "calling stringifier with this = null didn't throw TypeError");
|
||
|
||
// "If O is not an object that implements the interface on which the
|
||
// stringifier was declared, then throw a TypeError."
|
||
//
|
||
// TODO: Test a platform object that implements some other
|
||
// interface. (Have to be sure to get inheritance right.)
|
||
assert_throws(new TypeError(), function() {
|
||
self[this.name].prototype.toString.apply({}, []);
|
||
}, "calling stringifier with this = {} didn't throw TypeError");
|
||
}, this.name + " interface: stringifier");
|
||
};
|
||
|
||
//@}
|
||
IdlInterface.prototype.test_members = function()
|
||
//@{
|
||
{
|
||
for (var i = 0; i < this.members.length; i++)
|
||
{
|
||
var member = this.members[i];
|
||
if (member.untested) {
|
||
continue;
|
||
}
|
||
|
||
switch (member.type) {
|
||
case "const":
|
||
this.test_member_const(member);
|
||
break;
|
||
|
||
case "attribute":
|
||
// For unforgeable attributes, we do the checks in
|
||
// test_interface_of instead.
|
||
if (!member.isUnforgeable)
|
||
{
|
||
this.test_member_attribute(member);
|
||
}
|
||
break;
|
||
|
||
case "operation":
|
||
// TODO: Need to correctly handle multiple operations with the same
|
||
// identifier.
|
||
// For unforgeable operations, we do the checks in
|
||
// test_interface_of instead.
|
||
if (member.name) {
|
||
if (!member.isUnforgeable)
|
||
{
|
||
this.test_member_operation(member);
|
||
}
|
||
} else if (member.stringifier) {
|
||
this.test_member_stringifier(member);
|
||
}
|
||
break;
|
||
|
||
default:
|
||
// TODO: check more member types.
|
||
break;
|
||
}
|
||
}
|
||
};
|
||
|
||
//@}
|
||
IdlInterface.prototype.test_object = function(desc)
|
||
//@{
|
||
{
|
||
var obj, exception = null;
|
||
try
|
||
{
|
||
obj = eval(desc);
|
||
}
|
||
catch(e)
|
||
{
|
||
exception = e;
|
||
}
|
||
|
||
// TODO: WebIDLParser doesn't currently support named legacycallers, so I'm
|
||
// not sure what those would look like in the AST
|
||
var expected_typeof = this.members.some(function(member)
|
||
{
|
||
return member.legacycaller
|
||
|| ("idlType" in member && member.idlType.legacycaller)
|
||
|| ("idlType" in member && typeof member.idlType == "object"
|
||
&& "idlType" in member.idlType && member.idlType.idlType == "legacycaller");
|
||
}) ? "function" : "object";
|
||
|
||
this.test_primary_interface_of(desc, obj, exception, expected_typeof);
|
||
var current_interface = this;
|
||
while (current_interface)
|
||
{
|
||
if (!(current_interface.name in this.array.members))
|
||
{
|
||
throw "Interface " + current_interface.name + " not found (inherited by " + this.name + ")";
|
||
}
|
||
if (current_interface.prevent_multiple_testing && current_interface.already_tested)
|
||
{
|
||
return;
|
||
}
|
||
current_interface.test_interface_of(desc, obj, exception, expected_typeof);
|
||
current_interface = this.array.members[current_interface.base];
|
||
}
|
||
};
|
||
|
||
//@}
|
||
IdlInterface.prototype.test_primary_interface_of = function(desc, obj, exception, expected_typeof)
|
||
//@{
|
||
{
|
||
// We can't easily test that its prototype is correct if there's no
|
||
// interface object, or the object is from a different global environment
|
||
// (not instanceof Object). TODO: test in this case that its prototype at
|
||
// least looks correct, even if we can't test that it's actually correct.
|
||
if (!this.has_extended_attribute("NoInterfaceObject")
|
||
&& (typeof obj != expected_typeof || obj instanceof Object))
|
||
{
|
||
test(() => {
|
||
assert_equals(exception, null, "Unexpected exception when evaluating object");
|
||
assert_equals(typeof obj, expected_typeof, "wrong typeof object");
|
||
assert_own_property(self, this.name,
|
||
"self does not have own property " + format_value(this.name));
|
||
assert_own_property(self[this.name], "prototype",
|
||
'interface "' + this.name + '" does not have own property "prototype"');
|
||
|
||
// "The value of the internal [[Prototype]] property of the
|
||
// platform object is the interface prototype object of the primary
|
||
// interface from the platform object’s associated global
|
||
// environment."
|
||
assert_equals(Object.getPrototypeOf(obj),
|
||
self[this.name].prototype,
|
||
desc + "'s prototype is not " + this.name + ".prototype");
|
||
}, this.name + " must be primary interface of " + desc);
|
||
}
|
||
|
||
// "The class string of a platform object that implements one or more
|
||
// interfaces must be the identifier of the primary interface of the
|
||
// platform object."
|
||
test(() => {
|
||
assert_equals(exception, null, "Unexpected exception when evaluating object");
|
||
assert_equals(typeof obj, expected_typeof, "wrong typeof object");
|
||
assert_class_string(obj, this.name, "class string of " + desc);
|
||
if (!this.has_stringifier())
|
||
{
|
||
assert_equals(String(obj), "[object " + this.name + "]", "String(" + desc + ")");
|
||
}
|
||
}, "Stringification of " + desc);
|
||
};
|
||
|
||
//@}
|
||
IdlInterface.prototype.test_interface_of = function(desc, obj, exception, expected_typeof)
|
||
//@{
|
||
{
|
||
// TODO: Indexed and named properties, more checks on interface members
|
||
this.already_tested = true;
|
||
|
||
for (var i = 0; i < this.members.length; i++)
|
||
{
|
||
var member = this.members[i];
|
||
if (member.type == "attribute" && member.isUnforgeable)
|
||
{
|
||
test(() => {
|
||
assert_equals(exception, null, "Unexpected exception when evaluating object");
|
||
assert_equals(typeof obj, expected_typeof, "wrong typeof object");
|
||
this.do_interface_attribute_asserts(obj, member);
|
||
}, this.name + " interface: " + desc + ' must have own property "' + member.name + '"');
|
||
}
|
||
else if (member.type == "operation" &&
|
||
member.name &&
|
||
member.isUnforgeable)
|
||
{
|
||
test(() => {
|
||
assert_equals(exception, null, "Unexpected exception when evaluating object");
|
||
assert_equals(typeof obj, expected_typeof, "wrong typeof object");
|
||
assert_own_property(obj, member.name,
|
||
"Doesn't have the unforgeable operation property");
|
||
this.do_member_operation_asserts(obj, member);
|
||
}, this.name + " interface: " + desc + ' must have own property "' + member.name + '"');
|
||
}
|
||
else if ((member.type == "const"
|
||
|| member.type == "attribute"
|
||
|| member.type == "operation")
|
||
&& member.name)
|
||
{
|
||
test(() => {
|
||
assert_equals(exception, null, "Unexpected exception when evaluating object");
|
||
assert_equals(typeof obj, expected_typeof, "wrong typeof object");
|
||
if (!member["static"]) {
|
||
if (!this.is_global()) {
|
||
assert_inherits(obj, member.name);
|
||
} else {
|
||
assert_own_property(obj, member.name);
|
||
}
|
||
|
||
if (member.type == "const")
|
||
{
|
||
assert_equals(obj[member.name], constValue(member.value));
|
||
}
|
||
if (member.type == "attribute")
|
||
{
|
||
// Attributes are accessor properties, so they might
|
||
// legitimately throw an exception rather than returning
|
||
// anything.
|
||
var property, thrown = false;
|
||
try
|
||
{
|
||
property = obj[member.name];
|
||
}
|
||
catch (e)
|
||
{
|
||
thrown = true;
|
||
}
|
||
if (!thrown)
|
||
{
|
||
this.array.assert_type_is(property, member.idlType);
|
||
}
|
||
}
|
||
if (member.type == "operation")
|
||
{
|
||
assert_equals(typeof obj[member.name], "function");
|
||
}
|
||
}
|
||
}, this.name + " interface: " + desc + ' must inherit property "' + member.name + '" with the proper type (' + i + ')');
|
||
}
|
||
// TODO: This is wrong if there are multiple operations with the same
|
||
// identifier.
|
||
// TODO: Test passing arguments of the wrong type.
|
||
if (member.type == "operation" && member.name && member.arguments.length)
|
||
{
|
||
test(() => {
|
||
assert_equals(exception, null, "Unexpected exception when evaluating object");
|
||
assert_equals(typeof obj, expected_typeof, "wrong typeof object");
|
||
if (!member["static"]) {
|
||
if (!this.is_global() && !member.isUnforgeable) {
|
||
assert_inherits(obj, member.name);
|
||
} else {
|
||
assert_own_property(obj, member.name);
|
||
}
|
||
}
|
||
else
|
||
{
|
||
assert_false(member.name in obj);
|
||
}
|
||
|
||
var minLength = minOverloadLength(this.members.filter(function(m) {
|
||
return m.type == "operation" && m.name == member.name;
|
||
}));
|
||
var args = [];
|
||
for (var i = 0; i < minLength; i++) {
|
||
assert_throws(new TypeError(), () => {
|
||
obj[member.name].apply(obj, args);
|
||
}, "Called with " + i + " arguments");
|
||
|
||
args.push(create_suitable_object(member.arguments[i].idlType));
|
||
}
|
||
}, this.name + " interface: calling " + member.name +
|
||
"(" + member.arguments.map(function(m) { return m.idlType.idlType; }) +
|
||
") on " + desc + " with too few arguments must throw TypeError");
|
||
}
|
||
}
|
||
};
|
||
|
||
//@}
|
||
IdlInterface.prototype.has_stringifier = function()
|
||
//@{
|
||
{
|
||
if (this.members.some(function(member) { return member.stringifier; })) {
|
||
return true;
|
||
}
|
||
if (this.base &&
|
||
this.array.members[this.base].has_stringifier()) {
|
||
return true;
|
||
}
|
||
return false;
|
||
};
|
||
|
||
//@}
|
||
IdlInterface.prototype.do_interface_attribute_asserts = function(obj, member)
|
||
//@{
|
||
{
|
||
// This function tests WebIDL as of 2015-01-27.
|
||
// TODO: Consider [Exposed].
|
||
|
||
// This is called by test_member_attribute() with the prototype as obj if
|
||
// it is not a global, and the global otherwise, and by test_interface_of()
|
||
// with the object as obj.
|
||
|
||
// "For each exposed attribute of the interface, whether it was declared on
|
||
// the interface itself or one of its consequential interfaces, there MUST
|
||
// exist a corresponding property. The characteristics of this property are
|
||
// as follows:"
|
||
|
||
// "The name of the property is the identifier of the attribute."
|
||
assert_own_property(obj, member.name);
|
||
|
||
// "The property has attributes { [[Get]]: G, [[Set]]: S, [[Enumerable]]:
|
||
// true, [[Configurable]]: configurable }, where:
|
||
// "configurable is false if the attribute was declared with the
|
||
// [Unforgeable] extended attribute and true otherwise;
|
||
// "G is the attribute getter, defined below; and
|
||
// "S is the attribute setter, also defined below."
|
||
var desc = Object.getOwnPropertyDescriptor(obj, member.name);
|
||
assert_false("value" in desc, 'property descriptor has value but is supposed to be accessor');
|
||
assert_false("writable" in desc, 'property descriptor has "writable" field but is supposed to be accessor');
|
||
assert_true(desc.enumerable, "property is not enumerable");
|
||
if (member.isUnforgeable)
|
||
{
|
||
assert_false(desc.configurable, "[Unforgeable] property must not be configurable");
|
||
}
|
||
else
|
||
{
|
||
assert_true(desc.configurable, "property must be configurable");
|
||
}
|
||
|
||
|
||
// "The attribute getter is a Function object whose behavior when invoked
|
||
// is as follows:"
|
||
assert_equals(typeof desc.get, "function", "getter must be Function");
|
||
|
||
// "If the attribute is a regular attribute, then:"
|
||
if (!member["static"]) {
|
||
// "If O is not a platform object that implements I, then:
|
||
// "If the attribute was specified with the [LenientThis] extended
|
||
// attribute, then return undefined.
|
||
// "Otherwise, throw a TypeError."
|
||
if (!member.has_extended_attribute("LenientThis")) {
|
||
assert_throws(new TypeError(), () => {
|
||
desc.get.call({});
|
||
}, "calling getter on wrong object type must throw TypeError");
|
||
} else {
|
||
assert_equals(desc.get.call({}), undefined,
|
||
"calling getter on wrong object type must return undefined");
|
||
}
|
||
}
|
||
|
||
// "The value of the Function object’s “length” property is the Number
|
||
// value 0."
|
||
assert_equals(desc.get.length, 0, "getter length must be 0");
|
||
|
||
|
||
// TODO: Test calling setter on the interface prototype (should throw
|
||
// TypeError in most cases).
|
||
if (member.readonly
|
||
&& !member.has_extended_attribute("PutForwards")
|
||
&& !member.has_extended_attribute("Replaceable"))
|
||
{
|
||
// "The attribute setter is undefined if the attribute is declared
|
||
// readonly and has neither a [PutForwards] nor a [Replaceable]
|
||
// extended attribute declared on it."
|
||
assert_equals(desc.set, undefined, "setter must be undefined for readonly attributes");
|
||
}
|
||
else
|
||
{
|
||
// "Otherwise, it is a Function object whose behavior when
|
||
// invoked is as follows:"
|
||
assert_equals(typeof desc.set, "function", "setter must be function for PutForwards, Replaceable, or non-readonly attributes");
|
||
|
||
// "If the attribute is a regular attribute, then:"
|
||
if (!member["static"]) {
|
||
// "If /validThis/ is false and the attribute was not specified
|
||
// with the [LenientThis] extended attribute, then throw a
|
||
// TypeError."
|
||
// "If the attribute is declared with a [Replaceable] extended
|
||
// attribute, then: ..."
|
||
// "If validThis is false, then return."
|
||
if (!member.has_extended_attribute("LenientThis")) {
|
||
assert_throws(new TypeError(), () => {
|
||
desc.set.call({});
|
||
}, "calling setter on wrong object type must throw TypeError");
|
||
} else {
|
||
assert_equals(desc.set.call({}), undefined,
|
||
"calling setter on wrong object type must return undefined");
|
||
}
|
||
}
|
||
|
||
// "The value of the Function object’s “length” property is the Number
|
||
// value 1."
|
||
assert_equals(desc.set.length, 1, "setter length must be 1");
|
||
}
|
||
}
|
||
//@}
|
||
|
||
/// IdlInterfaceMember ///
|
||
function IdlInterfaceMember(obj)
|
||
//@{
|
||
{
|
||
/**
|
||
* obj is an object produced by the WebIDLParser.js "ifMember" production.
|
||
* We just forward all properties to this object without modification,
|
||
* except for special extAttrs handling.
|
||
*/
|
||
for (var k in obj)
|
||
{
|
||
this[k] = obj[k];
|
||
}
|
||
if (!("extAttrs" in this))
|
||
{
|
||
this.extAttrs = [];
|
||
}
|
||
|
||
this.isUnforgeable = this.has_extended_attribute("Unforgeable");
|
||
}
|
||
|
||
//@}
|
||
IdlInterfaceMember.prototype = Object.create(IdlObject.prototype);
|
||
|
||
/// Internal helper functions ///
|
||
function create_suitable_object(type)
|
||
//@{
|
||
{
|
||
/**
|
||
* type is an object produced by the WebIDLParser.js "type" production. We
|
||
* return a JavaScript value that matches the type, if we can figure out
|
||
* how.
|
||
*/
|
||
if (type.nullable)
|
||
{
|
||
return null;
|
||
}
|
||
switch (type.idlType)
|
||
{
|
||
case "any":
|
||
case "boolean":
|
||
return true;
|
||
|
||
case "byte": case "octet": case "short": case "unsigned short":
|
||
case "long": case "unsigned long": case "long long":
|
||
case "unsigned long long": case "float": case "double":
|
||
case "unrestricted float": case "unrestricted double":
|
||
return 7;
|
||
|
||
case "DOMString":
|
||
case "ByteString":
|
||
case "USVString":
|
||
return "foo";
|
||
|
||
case "object":
|
||
return {a: "b"};
|
||
|
||
case "Node":
|
||
return document.createTextNode("abc");
|
||
}
|
||
return null;
|
||
}
|
||
//@}
|
||
|
||
/// IdlEnum ///
|
||
// Used for IdlArray.prototype.assert_type_is
|
||
function IdlEnum(obj)
|
||
//@{
|
||
{
|
||
/**
|
||
* obj is an object produced by the WebIDLParser.js "dictionary"
|
||
* production.
|
||
*/
|
||
|
||
/** Self-explanatory. */
|
||
this.name = obj.name;
|
||
|
||
/** An array of values produced by the "enum" production. */
|
||
this.values = obj.values;
|
||
|
||
}
|
||
//@}
|
||
|
||
IdlEnum.prototype = Object.create(IdlObject.prototype);
|
||
|
||
/// IdlTypedef ///
|
||
// Used for IdlArray.prototype.assert_type_is
|
||
function IdlTypedef(obj)
|
||
//@{
|
||
{
|
||
/**
|
||
* obj is an object produced by the WebIDLParser.js "typedef"
|
||
* production.
|
||
*/
|
||
|
||
/** Self-explanatory. */
|
||
this.name = obj.name;
|
||
|
||
/** An array of values produced by the "typedef" production. */
|
||
this.values = obj.values;
|
||
|
||
}
|
||
//@}
|
||
|
||
IdlTypedef.prototype = Object.create(IdlObject.prototype);
|
||
|
||
}());
|
||
// vim: set expandtab shiftwidth=4 tabstop=4 foldmarker=@{,@} foldmethod=marker:
|