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Auto merge of #15589 - servo:RootedTraceable-union, r=nox

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Use RootedTraceableBox for unions.

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This commit is contained in:
bors-servo 2017-02-19 05:56:01 -08:00 • committed by GitHub
commit 28698dc8ba
3 changed files with 10 additions and 1 deletions
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6
components/script/dom/bindings/codegen/CodegenRust.py
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@ -722,6 +722,9 @@ def getJSToNativeConversionInfo(type, descriptorProvider, failureCode=None,
if type.nullable():
declType = CGWrapper(declType, pre="Option<", post=" >")
if isMember != "Dictionary" and type_needs_tracing(type):
declType = CGTemplatedType("RootedTraceableBox", declType)
templateBody = ("match FromJSValConvertible::from_jsval(cx, ${val}, ()) {\n"
" Ok(ConversionResult::Success(value)) => value,\n"
" Ok(ConversionResult::Failure(error)) => {\n"
@ -6196,6 +6199,9 @@ def type_needs_tracing(t):
if t.isSequence():
return type_needs_tracing(t.inner)
if t.isUnion():
return any(type_needs_tracing(member) for member in t.flatMemberTypes)
return False
if t.isDictionary():