Language versioning specifies that an empty-name-entry in .packages
specifies a sort of "default package" that a non-package file should
pretend to be a part of "for any purpose where that matters,
including choosing the default language level."
Change-Id: I16f4b2f5e4d3ca1e82d2189321e2be5c43e3b260
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/112089
Commit-Queue: Jens Johansen <jensj@google.com>
Reviewed-by: Johnni Winther <johnniwinther@google.com>
Issue error when the .packages file specifies more than on 'dart=' entry.
Also add another test of the library and part mismatch being an error.
Change-Id: I0a894e6ef86eb9f976b9fbdce67f0c9adb03be9b
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/112881
Commit-Queue: Jens Johansen <jensj@google.com>
Reviewed-by: Johnni Winther <johnniwinther@google.com>
From the feature spec: "Part files must be marked with the same version
as their library. They must always be treated the same way as the
library they belong to, so it is a compile-time error if a part file has
a different language level override than its library. It is also a
compile-time error if a part file has no language version marker,
and the importing library does".
Change-Id: I29805e261e63b89a7d8832770ed2b007fb6df37f
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/112247
Commit-Queue: Jens Johansen <jensj@google.com>
Reviewed-by: Johnni Winther <johnniwinther@google.com>
From the feature specification: "If an entry contains an invalid dart
version value, #dart=arglebargle or #dart= or any other value which is
not a semantic versioning version, then tools which need the version
should report an error."
Change-Id: Ieb54dbbad6f2fecb341e27b468e3ffdf90717a7c
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/112245
Commit-Queue: Jens Johansen <jensj@google.com>
Reviewed-by: Johnni Winther <johnniwinther@google.com>
Specifying a language version higher than the highest supported version
(aka the default version) is an error.
Specifying a language verison in code that is higher than the one
specified in .packages is an error.
Change-Id: I44e1c8c45cef715038786dbf248925b73bd6cd7c
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/112240
Commit-Queue: Jens Johansen <jensj@google.com>
Reviewed-by: Johnni Winther <johnniwinther@google.com>
If the .packages file specifies a fragment on a uri on the form
"dart=x.y", x.y becomes the default lanaguage version for libraries in
that package.
Change-Id: I69cb4157fdf5852184cc3519b033c3624792f783
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/112082
Commit-Queue: Jens Johansen <jensj@google.com>
Reviewed-by: Johnni Winther <johnniwinther@google.com>
A kernel library will say it has the newest language version if no
language version is set.
This basically preserves the current semantics of always being on the
newest version (if nothing is explicitly done), e.g. if creating a kernel
library by hand and not setting it.
The front_end also utilize this and just doesn't set it, if it isn't set.
Change-Id: I033fef13626ee034030ba8fc9d141b182ba1a5ba
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/111739
Commit-Queue: Jens Johansen <jensj@google.com>
Reviewed-by: Johnni Winther <johnniwinther@google.com>
This CL sets up the bare minimum support for saving the language version
specified in a file on the kernel library, and adds simple support for
testing it.
The data is not serialized out, error checked or similar in this change.
Change-Id: I4b061ce617acae7964b85be105e0ad0e3e031aa4
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/111640
Commit-Queue: Jens Johansen <jensj@google.com>
Reviewed-by: Johnni Winther <johnniwinther@google.com>
Jens Johansen