This gives a noticeable 5-10% boost to startup on large internal apps
in Chrome. We may want to consider for AMD at some point. It doesn't
apply to es6 or common as those are top-level (and either the browser
or linker would hopefully parse accordingly).
R=jmesserly@google.com
Review-Url: https://codereview.chromium.org/2753623002 .
This makes the source files a little easier to read anyway and the JSON
is not typically that nested so there should be a minimal statup performance hit.
Do not return the JSON as an escaped String to work around a strange v8 bug.
BUG=
R=vsm@google.com
Review-Url: https://codereview.chromium.org/2747733003 .
In DDC, if the receiver is typed and the target method simply forwards to a JS call, invoke that call directly instead of via a symbol.
This is a step toward #28307.
Paul: can you look the the analyzer / summary code change?
dart:html uses "native". other libraries (e.g., typed_data) use "external" for more or less the same thing. The analyzer element model doesn't provide a way to test for "native" methods, but it does for "external". I map native to external here. Not sure if it's better to treat them as separate (I believe native predated external). Longer term, it may make sense to try to remove "native" in favor of "external".
R=brianwilkerson@google.com, jacobr@google.com, jmesserly@google.com, paulberry@google.com
Review-Url: https://codereview.chromium.org/2748713002 .
Make DDC a better platform for debugging by ensuring that stack traces
generated by DDC even when using the raw dart:core StackTrace class
apply JS source maps and benefit from the polish provided by the
stack_trace package.
stack_trace_mapper.dart needs to be compiled to js and included on your
page to benefit from this functionality. Otherwise you will still see
regular JS stack traces as usual.
BUG=
R=vsm@google.com
Review-Url: https://codereview.chromium.org/2735303002 .
Our internal tooling is complaining about this when building / checking the ddc sdk. It appears to use the analyzer's summary builder tool which seems less forgiving about dangling references / missing files.
R=srawlins@google.com
Review-Url: https://codereview.chromium.org/2740573003 .
There's some changes in strong mode errors we may want to follow up on.
Unforks the following: async, collection, convert, core, developer, internal, io, isolate, math, mirrors.
Does not unfork: html, indexed_db, js, js_util, svg, typed_data, web_audio, web_gl, web_sql.
R=vsm@google.com
Review-Url: https://codereview.chromium.org/2698353003 .
Paul, you recommended that we switch to this a while back, but it got
lost in the shuffle. I noticed we seem to drop some unneeded null
checks in generated code with this change. :-)
R=paulberry@google.com
Review-Url: https://codereview.chromium.org/2684303002 .
Just creating an Error object is sufficient on FF,
Chrome, Safari, and Edge. Note that captureStackTrace
was not supported by other browsers so those browsers
were going down the even slower path of throwing an
exception.
BUG=
R=vsm@google.com
Review-Url: https://codereview.chromium.org/2668503002 .
This implements FutureOr<T> in strong mode, otherwise it's ignored (treated as `dynamic`.
Also fixes strong mode's inference subtype function incorrectly treating `void` as a malformed type. This had the consequence of allowing `void` to be inferred as a type argument.
R=leafp@google.com, paulberry@google.com
Review-Url: https://codereview.chromium.org/2647833002 .
Fix extending a JS class and add a test to ensure it
continues to work from DDC. Note this behavior will never
be supported in Dartium and is not yet supported by Dart2JS.
BUG=
R=vsm@google.com
Review-Url: https://codereview.chromium.org/2654583002 .
This ensures the runtime type is of the tear-off expression's static
type, even when accessed through a superclass.
I also moved the two tests into a subdirectory so they are easier to
find. (It is inscrutable to me why we would have a single directory
with 1,868 test files in it.) That involved enabling recursive
directory listing in codegen_test, which exposed a couple of things.
Fix#27484.
R=leafp@google.com
Review-Url: https://codereview.chromium.org/2641543003 .
Improvement on #28286 - this is still not quite right as we'll throw a
TypeError instead of a NSM in certain cases depending on the order.
The spec will only throw a TypeError if NSM doesn't apply.
R=leafp@google.com
Review-Url: https://codereview.chromium.org/2636313002 .
Vijay Menon