sdk/pkg/vm at 41db525fc95692cbda3910b19db8cd5cd686eb4e - sdk

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Alexander Markov f7a45a39e9 [vm/aot/tfa] Infer non-nullability of receiver after calls

This change further improves control-flow sensitive handling of
local variables when building data-flow summary in TFA.

After the invocation x.foo() where x is a variable, and
foo is not present in Null, we can infer that subsequent uses of x are
non-nullable.

Also, this change improves inference of variable types after type casts.

Change-Id: I4924de4dd4c18b80fbe0436db895c1c1f2b6fffe
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/133480
Commit-Queue: Alexander Markov <alexmarkov@google.com>
Reviewed-by: Martin Kustermann <kustermann@google.com>

2020-01-28 19:20:28 +00:00

bin

[vm] Refactor debug info handling code into a new package.

2020-01-23 10:14:17 +00:00

lib

[vm/aot/tfa] Infer non-nullability of receiver after calls

2020-01-28 19:20:28 +00:00

test

[vm/aot/tfa] Infer more information from conditions in TFA

2020-01-27 20:34:29 +00:00

testcases

[vm/aot/tfa] Infer non-nullability of receiver after calls