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Bug 827486, part 2 - Refactor example class codegen into common base class. r=bz

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This commit is contained in:
Andrew McCreight 2013-03-17 09:55:29 -07:00
parent dcbddbaae0
commit 783748c6ea
1 changed files with 48 additions and 25 deletions
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73
dom/bindings/Codegen.py
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@ -7655,24 +7655,28 @@ class CGExampleSetter(CGNativeMember):
def define(self, cgClass):
return ''
class CGExampleClass(CGClass):
class CGBindingImplClass(CGClass):
"""
Codegen for the actual example class implemenation for this descriptor
Common codegen for generating a C++ implementation of a WebIDL interface
"""
def __init__(self, descriptor):
def __init__(self, descriptor, cgMethod, cgGetter, cgSetter):
"""
cgMethod, cgGetter and cgSetter are classes used to codegen methods,
getters and setters.
"""
self.descriptor = descriptor
iface = descriptor.interface
methodDecls = []
self.methodDecls = []
def appendMethod(m):
sigs = m.signatures()
for s in sigs[:-1]:
# Don't put an empty line after overloads, until we
# get to the last one.
methodDecls.append(CGExampleMethod(descriptor, m, s,
breakAfter=False))
methodDecls.append(CGExampleMethod(descriptor, m, sigs[-1]))
self.methodDecls.append(cgMethod(descriptor, m, s,
breakAfter=False))
self.methodDecls.append(cgMethod(descriptor, m, sigs[-1]))
if iface.ctor():
appendMethod(iface.ctor())
@ -7684,9 +7688,9 @@ class CGExampleClass(CGClass):
continue
appendMethod(m)
elif m.isAttr():
methodDecls.append(CGExampleGetter(descriptor, m))
self.methodDecls.append(cgGetter(descriptor, m))
if not m.readonly:
methodDecls.append(CGExampleSetter(descriptor, m))
self.methodDecls.append(cgSetter(descriptor, m))
# Now do the special operations
def appendSpecialOperation(name, op):
@ -7719,7 +7723,7 @@ class CGExampleClass(CGClass):
else:
# We already added this method
return
methodDecls.append(
self.methodDecls.append(
CGNativeMember(descriptor, op,
name,
(returnType, args),
@ -7732,7 +7736,7 @@ class CGExampleClass(CGClass):
# If we support indexed properties, then we need a Length()
# method so we know which indices are supported.
if descriptor.supportsIndexedProperties():
methodDecls.append(
self.methodDecls.append(
CGNativeMember(descriptor, FakeMember(),
"Length",
(BuiltinTypes[IDLBuiltinType.Types.unsigned_long],
@ -7741,7 +7745,7 @@ class CGExampleClass(CGClass):
# And if we support named properties we need to be able to
# enumerate the supported names.
if descriptor.supportsNamedProperties():
methodDecls.append(
self.methodDecls.append(
CGNativeMember(
descriptor, FakeMember(),
"GetSupportedNames",
@ -7752,18 +7756,37 @@ class CGExampleClass(CGClass):
wrapArgs = [Argument('JSContext*', 'aCx'),
Argument('JSObject*', 'aScope')]
methodDecls.insert(0,
ClassMethod("WrapObject", "JSObject*",
wrapArgs, virtual=descriptor.wrapperCache,
breakAfterReturnDecl=" "))
getParentObjectReturnType = (
"// TODO: return something sensible here, and change the return type\n"
"%s*" % descriptor.name)
methodDecls.insert(0,
ClassMethod("GetParentObject",
getParentObjectReturnType,
[], const=True,
breakAfterReturnDecl=" "))
self.methodDecls.insert(0,
ClassMethod("WrapObject", "JSObject*",
wrapArgs, virtual=descriptor.wrapperCache,
breakAfterReturnDecl=" ",
body=self.getWrapObjectBody()))
self.methodDecls.insert(0,
ClassMethod("GetParentObject",
self.getGetParentObjectReturnType(),
[], const=True,
breakAfterReturnDecl=" ",
body=self.getGetParentObjectBody()))
# Invoke CGClass.__init__ in any subclasses afterwards to do the actual codegen.
def getWrapObjectBody(self):
return None
def getGetParentObjectReturnType(self):
return ("// TODO: return something sensible here, and change the return type\n"
"%s*" % self.descriptor.name)
def getGetParentObjectBody(self):
return None
class CGExampleClass(CGBindingImplClass):
"""
Codegen for the actual example class implementation for this descriptor
"""
def __init__(self, descriptor):
CGBindingImplClass.__init__(self, descriptor, CGExampleMethod, CGExampleGetter, CGExampleSetter)
extradeclarations=(
"public:\n"
" NS_DECL_CYCLE_COLLECTING_ISUPPORTS\n"
@ -7776,7 +7799,7 @@ class CGExampleClass(CGClass):
constructors=[ClassConstructor([],
visibility="public")],
destructor=ClassDestructor(visibility="public"),
methods=methodDecls,
methods=self.methodDecls,
decorators="MOZ_FINAL",
extradeclarations=extradeclarations)