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-rw-r--r--dom/bindings/parser/WebIDL.py94
1 files changed, 55 insertions, 39 deletions
diff --git a/dom/bindings/parser/WebIDL.py b/dom/bindings/parser/WebIDL.py
index 8c32a8738..fafb3c9b6 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):
@@ -2871,6 +2850,45 @@ class IDLWrapperType(IDLType):
return set([self.inner])
return set()
+
+class IDLPromiseType(IDLParametrizedType):
+ def __init__(self, location, innerType):
+ IDLParametrizedType.__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):
@@ -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):
"""