During inference, allow sub-expressions of type dynamic to be cast to the inferred type.
This CL also adds special case support for the case where we are trying to infer a type for a closure literal with a fuzzy type - often these closures are already well-typed (or easily inferable) if we eliminate the fuzziness.
This gets rid of two of the static errors on angular hello world, along with most of the InferableClosure warnings (turning them into InferredTypeClosure infos).
Most of the remaining InferableClosure cases are function literals with block function bodies, which I don't handle in general yet.
BUG=
R=vsm@google.com
Review URL: https://codereview.chromium.org/1059763003
This is a first cut at downwards inference. The interaction with InferableLiteral etc isn't well sorted out yet, so while downwards inference on nested expressions works, there will currently be spurious warnings.
BUG=
R=vsm@google.com
Review URL: https://codereview.chromium.org/1038213003
This breaks out casts / coercions into:
Standard (on by default)
- DynamicCasts: dynamic -> T
- AssignmentCasts: T x = expr; // T must be a ground type
Inference (this will go away)
- InferableLiteral
- InferableClosure
- InferableAllocation
Implicit (no flag yet, but i'll add to disable by default)
- DownCastComposite: Any cast to a non-ground type
- DownCastImplicit: Any other implicit downcast not covered above
A flag is also added to enable/disable all wrapping. This is not off by default yet, but that is the intent.
R=leafp@google.com
Review URL: https://codereview.chromium.org/1038583004
Moves: test/sdk --> tool/input_sdk_src
Also moves: test/sdk/lib/_internal/js_lib --> tool/input_sdk_patch
we'll eventually need to customize that code
Adds tool/patch_sdk.dart, an offline transformation step that produces: test/generated_sdk
Essentially this merges the "external" declarations and the @patch syntactically. There's a comment in tool/patch_sdk.dart explaining the rationale behind this approach.
There's still *lots* to do in the generated code. This does none of that. The only new code is tool/patch_sdk.dart and the minimum changes to test/codegen_test.dart and js_codegen.dart to get test.sh running and debuggable.
Tracking bug for SDK is https://github.com/dart-lang/dart-dev-compiler/issues/58R=sigmund@google.com, vsm@google.com
Review URL: https://chromereviews.googleplex.com/157137013
Leaf Petersen