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Make the private callback methods taking a raw this pointer unsafe

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This commit is contained in:
Anthony Ramine 2018-01-25 12:07:13 +01:00
parent 74dabbdc62
commit de426baecc
1 changed files with 12 additions and 10 deletions
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22
components/script/dom/bindings/codegen/CodegenRust.py
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@ -4417,7 +4417,7 @@ class ClassMethod(ClassItem):
def __init__(self, name, returnType, args, inline=False, static=False,
virtual=False, const=False, bodyInHeader=False,
templateArgs=None, visibility='public', body=None,
breakAfterReturnDecl="\n",
breakAfterReturnDecl="\n", unsafe=False,
breakAfterSelf="\n", override=False):
"""
override indicates whether to flag the method as MOZ_OVERRIDE
@ -4436,6 +4436,7 @@ class ClassMethod(ClassItem):
self.breakAfterReturnDecl = breakAfterReturnDecl
self.breakAfterSelf = breakAfterSelf
self.override = override
self.unsafe = unsafe
ClassItem.__init__(self, name, visibility)
def getDecorators(self, declaring):
@ -4468,7 +4469,7 @@ class ClassMethod(ClassItem):
return string.Template(
"${decorators}%s"
"${visibility}fn ${name}${templateClause}(${args})${returnType}${const}${override}${body}%s" %
"${visibility}${unsafe}fn ${name}${templateClause}(${args})${returnType}${const}${override}${body}%s" %
(self.breakAfterReturnDecl, self.breakAfterSelf)
).substitute({
'templateClause': templateClause,
@ -4479,7 +4480,8 @@ class ClassMethod(ClassItem):
'override': ' MOZ_OVERRIDE' if self.override else '',
'args': args,
'body': body,
'visibility': self.visibility + ' ' if self.visibility != 'priv' else ''
'visibility': self.visibility + ' ' if self.visibility != 'priv' else '',
'unsafe': "unsafe " if self.unsafe else "",
})
def define(self, cgClass):
@ -6495,7 +6497,8 @@ def return_type(descriptorProvider, rettype, infallible):
class CGNativeMember(ClassMethod):
def __init__(self, descriptorProvider, member, name, signature, extendedAttrs,
breakAfter=True, passJSBitsAsNeeded=True, visibility="public"):
breakAfter=True, passJSBitsAsNeeded=True, visibility="public",
unsafe=False):
"""
If passJSBitsAsNeeded is false, we don't automatically pass in a
JSContext* or a JSObject* based on the return and argument types.
@ -6514,6 +6517,7 @@ class CGNativeMember(ClassMethod):
const=(not member.isStatic() and member.isAttr() and
not signature[0].isVoid()),
breakAfterSelf=breakAfterSelf,
unsafe=unsafe,
visibility=visibility)
def getReturnType(self, type):
@ -6598,14 +6602,14 @@ class CGCallback(CGClass):
"if thisObjJS.is_null() {\n"
" return Err(JSFailed);\n"
"}\n"
"return ${methodName}(${callArgs});").substitute({
"unsafe { ${methodName}(${callArgs}) }").substitute({
"callArgs": ", ".join(argnamesWithThis),
"methodName": 'self.' + method.name,
})
bodyWithoutThis = string.Template(
setupCall +
"rooted!(in(s.get_context()) let thisObjJS = ptr::null_mut::<JSObject>());\n"
"return ${methodName}(${callArgs});").substitute({
"unsafe { ${methodName}(${callArgs}) }").substitute({
"callArgs": ", ".join(argnamesWithoutThis),
"methodName": 'self.' + method.name,
})
@ -6728,6 +6732,7 @@ class CallbackMember(CGNativeMember):
name, (self.retvalType, args),
extendedAttrs={},
passJSBitsAsNeeded=False,
unsafe=needThisHandling,
visibility=visibility)
# We have to do all the generation of our body now, because
# the caller relies on us throwing if we can't manage it.
@ -6761,10 +6766,7 @@ class CallbackMember(CGNativeMember):
"${convertArgs}"
"${doCall}"
"${returnResult}").substitute(replacements)
return CGWrapper(CGIndenter(CGList([
CGGeneric(pre),
CGGeneric(body),
], "\n"), 4), pre="unsafe {\n", post="\n}").define()
return pre + "\n" + body
def getResultConversion(self):
replacements = {