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CVS log for src/tests/usr.bin/xlint/lint1/Attic/msg_219.exp

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Default branch: MAIN

Revision 1.6, Fri Jun 17 20:23:59 2022 UTC (20 months ago) by rillig
Branch: MAIN
Changes since 1.5: +0 -0 lines

tests/lint: remove .exp files, as they have become redundant

Now that each lint1 test lists all generated diagnostics as 'expect'
comments, the information from the .exp files is no longer needed.  The
only information that gets lost is the order of the diagnostics, which
is mostly relevant for paired messages like 'inconsistent definition' +
'previous definition was here'.

Revision 1.5 / (download) - annotate - [select for diffs], Sun Feb 27 19:32:51 2022 UTC (23 months, 3 weeks ago) by rillig
Branch: MAIN
Changes since 1.4: +8 -3 lines
Diff to previous 1.4 (colored)

lint: concatenate string literals from left to right

Previously, the string literals "1" "2" "3" "4" were concatenated in the
order "23", "234", "1234".  This influenced the location of the
diagnostics for traditional C (which doesn't know concatenation at all)
and for mixing regular strings and wide strings.

Now the diagnostics occur exactly where they are expected.  The first
string literal defines whether the whole string is regular or wide, and
any further string literals must match it.

In traditional C mode, there are more diagnostics than before, but that
doesn't hurt since they are still correct and nobody uses lint in
traditional C mode anyway.

Revision 1.4 / (download) - annotate - [select for diffs], Sun Feb 27 18:57:16 2022 UTC (23 months, 3 weeks ago) by rillig
Branch: MAIN
Changes since 1.3: +1 -0 lines
Diff to previous 1.3 (colored)

tests/lint: test where exactly lint complains about concatenation

This only applies to traditional C and ensures that the behavior is
preserved when rearranging the C parser to evaluate string concatenation
from left to right.

Revision 1.3 / (download) - annotate - [select for diffs], Sun Mar 28 15:36:37 2021 UTC (2 years, 10 months ago) by rillig
Branch: MAIN
CVS Tags: cjep_sun2x-base1, cjep_sun2x-base, cjep_sun2x, cjep_staticlib_x-base1, cjep_staticlib_x-base, cjep_staticlib_x
Changes since 1.2: +0 -7 lines
Diff to previous 1.2 (colored)

lint: only define GCC builtins if -g is given

This removes 7 wrong warnings when running lint in -t mode.

Surprisingly, this added a warning that had not been there before in
msg_189.c.  This is because check_variable_usage skips the checks when
an error occurred before.  All diagnostics that happened were warnings,
but the -w option treats them as errors, see vwarning.

Revision 1.2 / (download) - annotate - [select for diffs], Sat Jan 2 11:12:34 2021 UTC (3 years, 1 month ago) by rillig
Branch: MAIN
Changes since 1.1: +10 -1 lines
Diff to previous 1.1 (colored)

lint: demonstrate that -t mode is practically unusable

Since main1.c from 2014-04-18, running lint in -t mode produces strange
warnings in lines 1 to 3 of no file at all.

This is caused by the builtins that are parsed in main().  These
builtins are incompatible with traditional mode because they use long
double, which had not been known at that time.

Revision 1.1 / (download) - annotate - [select for diffs], Sat Jan 2 10:22:44 2021 UTC (3 years, 1 month ago) by rillig
Branch: MAIN

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  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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