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History log of /src/tests/usr.bin/xlint/lint1/msg_242.c
RevisionDateAuthorComments
 1.8  09-Jul-2023  rillig lint: clean up the wording of a few diagnostics
 1.7  28-Mar-2023  rillig lint: warn about extern declarations outside headers

https://mail-index.netbsd.org/tech-userlevel/2023/03/15/msg013727.html
 1.6  22-Jun-2022  rillig lint: add quotes around placeholders for the remaining messages

Reword some of the messages slightly, exchanging brevity for clarity.

Message 138 is kept as-is, as it is not yet covered by any tests.

Message 240 is kep as-is, as it is unreachable.
 1.5  29-Nov-2021  rillig tests/lint: demonstrate non-enum warning for enum type mismatch

Seen in usr.bin/make/job.c:2122.
 1.4  14-Aug-2021  rillig lint: allow initialization of struct with constant member

The operator INIT, just like RETURN and FARG, initializes an object with
an expression. The target object of such an initialization may be a
struct with constant members.

The operator ASSIGN, on the other hand, is entirely different. It
overwrites the existing value of the object, and this is not allowed for
structs that have a constant member. Therefore it was wrong to use the
operator ASSIGN for initialization.
 1.3  27-Feb-2021  rillig tests/lint: add tests for enum/int mismatch
 1.2  21-Feb-2021  rillig lint: force each test to declare the expected diagnostics

By listing the expected diagnostics directly at the code that triggers
the diagnostics, it is easier to cross-check whether the diagnostics
make sense.

No functional change to lint itself.
 1.1  02-Jan-2021  rillig lint: add a test for each message produced by lint1

Having a test for each message ensures that upcoming refactorings don't
break the basic functionality. Adding the tests will also discover
previously unknown bugs in lint.

The tests ensure that every lint message can actually be triggered, and
they demonstrate how to do so. Having a separate file for each test
leaves enough space for documenting historical anecdotes, rationale or
edge cases, keeping them away from the source code.

The interesting details of this commit are in Makefile and
t_integration.sh. All other files are just auto-generated.

When running the tests as part of ATF, they are packed together as a
single test case. Conceptually, it would have been better to have each
test as a separate test case, but ATF quickly becomes very slow as soon
as a test program defines too many test cases, and 50 is already too
many. The time complexity is O(n^2), not O(n) as one would expect.
It's the same problem as in tests/usr.bin/make, which has over 300 test
cases as well.

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