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Derive the Default trait for dictionaries containing GC values.

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This commit is contained in:
Josh Matthews 2017-05-26 13:46:13 -04:00
parent b169689f32
commit 16166d6673
6 changed files with 49 additions and 7 deletions
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19
components/script/dom/bindings/codegen/CodegenRust.py
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@ -4028,12 +4028,18 @@ impl super::%s {
}
}
impl Default for super::%s {
fn default() -> super::%s {
pairs[0].1
}
}
impl ToJSValConvertible for super::%s {
unsafe fn to_jsval(&self, cx: *mut JSContext, rval: MutableHandleValue) {
pairs[*self as usize].0.to_jsval(cx, rval);
}
}
""" % (ident, pairs, ident, ident)
""" % (ident, pairs, ident, ident, ident, ident)
self.cgRoot = CGList([
CGGeneric(decl),
CGNamespace.build([ident + "Values"],
@ -6038,17 +6044,22 @@ class CGDictionary(CGThing):
(self.makeMemberName(m[0].identifier.name), self.getMemberType(m))
for m in self.memberInfo]
mustRoot = "#[must_root]\n" if self.membersNeedTracing() else ""
derive = ["JSTraceable"]
mustRoot = ""
if self.membersNeedTracing():
mustRoot = "#[must_root]\n"
derive += ["Default"]
return (string.Template(
"#[derive(JSTraceable)]\n"
"#[derive(${derive})]\n"
"${mustRoot}" +
"pub struct ${selfName} {\n" +
"${inheritance}" +
"\n".join(memberDecls) + "\n" +
"}").substitute({"selfName": self.makeClassName(d),
"inheritance": inheritance,
"mustRoot": mustRoot}))
"mustRoot": mustRoot,
"derive": ', '.join(derive)}))
def impl(self):
d = self.dictionary