diff options
Diffstat (limited to 'dom/bindings/parser/WebIDL.py')
| -rw-r--r-- | dom/bindings/parser/WebIDL.py | 96 |
1 files changed, 56 insertions, 40 deletions
diff --git a/dom/bindings/parser/WebIDL.py b/dom/bindings/parser/WebIDL.py index 8c32a8738..4f602365b 100644 --- a/dom/bindings/parser/WebIDL.py +++ b/dom/bindings/parser/WebIDL.py @@ -1597,11 +1597,7 @@ class IDLInterface(IDLInterfaceOrNamespace): args = attr.args() if attr.hasArgs() else [] - if self.identifier.name == "Promise": - promiseType = BuiltinTypes[IDLBuiltinType.Types.any] - else: - promiseType = None - retType = IDLWrapperType(self.location, self, promiseType) + retType = IDLWrapperType(self.location, self) if identifier == "Constructor" or identifier == "ChromeConstructor": name = "constructor" @@ -1988,7 +1984,8 @@ class IDLType(IDLObject): 'callback', 'union', 'sequence', - 'record' + 'record', + 'promise' ) def __init__(self, location, name): @@ -2142,9 +2139,8 @@ class IDLUnresolvedType(IDLType): Unresolved types are interface types """ - def __init__(self, location, name, promiseInnerType=None): + def __init__(self, location, name): IDLType.__init__(self, location, name) - self._promiseInnerType = promiseInnerType def isComplete(self): return False @@ -2171,11 +2167,8 @@ class IDLUnresolvedType(IDLType): assert self.name.name == obj.identifier.name return IDLCallbackType(self.location, obj) - if self._promiseInnerType and not self._promiseInnerType.isComplete(): - self._promiseInnerType = self._promiseInnerType.complete(scope) - name = self.name.resolve(scope, None) - return IDLWrapperType(self.location, obj, self._promiseInnerType) + return IDLWrapperType(self.location, obj) def isDistinguishableFrom(self, other): raise TypeError("Can't tell whether an unresolved type is or is not " @@ -2285,7 +2278,9 @@ class IDLNullableType(IDLParameterizedType): return self.inner.isInterface() def isPromise(self): - return self.inner.isPromise() + # There is no such thing as a nullable Promise. + assert not self.inner.isPromise() + return False def isCallbackInterface(self): return self.inner.isCallbackInterface() @@ -2698,13 +2693,11 @@ class IDLTypedef(IDLObjectWithIdentifier): class IDLWrapperType(IDLType): - def __init__(self, location, inner, promiseInnerType=None): + def __init__(self, location, inner): IDLType.__init__(self, location, inner.identifier.name) self.inner = inner self._identifier = inner.identifier self.builtin = False - assert not promiseInnerType or inner.identifier.name == "Promise" - self._promiseInnerType = promiseInnerType def __eq__(self, other): return (isinstance(other, IDLWrapperType) and @@ -2754,14 +2747,6 @@ class IDLWrapperType(IDLType): def isEnum(self): return isinstance(self.inner, IDLEnum) - def isPromise(self): - return (isinstance(self.inner, IDLInterface) and - self.inner.identifier.name == "Promise") - - def promiseInnerType(self): - assert self.isPromise() - return self._promiseInnerType - def isSerializable(self): if self.isInterface(): if self.inner.isExternal(): @@ -2793,8 +2778,6 @@ class IDLWrapperType(IDLType): assert False def isDistinguishableFrom(self, other): - if self.isPromise(): - return False if other.isPromise(): return False if other.isUnion(): @@ -2841,10 +2824,6 @@ class IDLWrapperType(IDLType): # Let's say true, though ideally we'd only do this when # exposureSet contains the primary global's name. return True - if (self.isPromise() and - # Check the internal type - not self.promiseInnerType().unroll().isExposedInAllOf(exposureSet)): - return False return iface.exposureSet.issuperset(exposureSet) def _getDependentObjects(self): @@ -2872,6 +2851,45 @@ class IDLWrapperType(IDLType): return set() +class IDLPromiseType(IDLParameterizedType): + def __init__(self, location, innerType): + IDLParameterizedType.__init__(self, location, "Promise", innerType) + + def __eq__(self, other): + return (isinstance(other, IDLPromiseType) and + self.promiseInnerType() == other.promiseInnerType()) + + def __str__(self): + return self.inner.__str__() + "Promise" + + def isPromise(self): + return True + + def promiseInnerType(self): + return self.inner + + def tag(self): + return IDLType.Tags.promise + + def complete(self, scope): + self.inner = self.promiseInnerType().complete(scope) + return self + + def unroll(self): + # We do not unroll our inner. Just stop at ourselves. That + # lets us add headers for both ourselves and our inner as + # needed. + return self + + def isDistinguishableFrom(self, other): + # Promises are not distinguishable from anything. + return False + + def isExposedInAllOf(self, exposureSet): + # Check the internal type + return self.promiseInnerType().unroll().isExposedInAllOf(exposureSet) + + class IDLBuiltinType(IDLType): Types = enum( @@ -3990,7 +4008,9 @@ class IDLAttribute(IDLInterfaceMember): raise WebIDLError("An attribute with [PutForwards] must have an " "interface type as its type", [self.location]) - if not self.type.isInterface() and self.getExtendedAttribute("SameObject"): + if (not self.type.isInterface() and + not self.type.isPromise() and + self.getExtendedAttribute("SameObject")): raise WebIDLError("An attribute with [SameObject] must have an " "interface type as its type", [self.location]) @@ -6394,17 +6414,13 @@ class Parser(Tokenizer): type = IDLSequenceType(self.getLocation(p, 1), innerType) p[0] = self.handleNullable(type, p[5]) - # Note: Promise<void> is allowed, so we want to parametrize on - # ReturnType, not Type. Also, we want this to end up picking up - # the Promise interface for now, hence the games with IDLUnresolvedType. + # Note: Promise<void> is allowed, so we want to parameterize on + # ReturnType, not Type. Promise types can't be null, hence no "Null" in there. def p_NonAnyTypePromiseType(self, p): """ - NonAnyType : PROMISE LT ReturnType GT Null + NonAnyType : PROMISE LT ReturnType GT """ - innerType = p[3] - promiseIdent = IDLUnresolvedIdentifier(self.getLocation(p, 1), "Promise") - type = IDLUnresolvedType(self.getLocation(p, 1), promiseIdent, p[3]) - p[0] = self.handleNullable(type, p[5]) + p[0] = IDLPromiseType(self.getLocation(p, 1), p[3]) def p_NonAnyTypeRecordType(self, p): """ @@ -6423,7 +6439,7 @@ class Parser(Tokenizer): if p[1].name == "Promise": raise WebIDLError("Promise used without saying what it's " - "parametrized over", + "parameterized over", [self.getLocation(p, 1)]) type = None |