Implement access tracking for containingUrl #2220
Merged
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This PR adds a
CanonicalizeContext
class in dart which is able to track ifcontainingUrl
is accessed or not, it also changes the dart2jsJSCanonicalizeContext
class to be a wrapper, so that the containingUrl in JS would lazily access the dartcontainingUrl
method instead of eagerly during construction. Finally for embedded host, this adds acontainingUrlWithoutMarking
method that allow the serialization of embedded protocol without marking, and we can mark it accordingly depends on the result from host.sass/sass#3835
sass/embedded-host-node#285