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This matches longstanding compiler behavior.
Also, for unused packages, report:
`"pkg" imported and not used`
`"pkg" imported as X and not used`
This matches the other `X declared and not used` errors.
For #55326.
Change-Id: Ie71cf662fb5f4648449c64fc51bede298a1bdcbf
Reviewed-on: https://go-review.googlesource.com/c/go/+/432557
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Robert Findley <rfindley@google.com>
Reviewed-by: Robert Griesemer <gri@google.com>
Auto-Submit: Robert Griesemer <gri@google.com>
Run-TryBot: Robert Griesemer <gri@google.com>
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I made the default be that, where there are differences between types2
and -G=0 error messages, we want errorcheck tests to pass types2.
Typically, we can get errorcheck to pass on types2 and -G=0 if they give
the same number of error messages on the same lines, just different
wording. If they give a different number of error messages, then I made
types2 pass. I added an exception list for -G=0 to cover those cases
where -G=0 and types give different numbers of error messages.
Because types2 does not run if there are syntax errors, for several
tests, I had to split the tests into two parts in order to get all the
indicated errors to be reported in types2 (bug228.go, bug388.go,
issue11610.go, issue14520.go)
I tried to preserve the GCCGO labeling correctly (but may have gotten
some wrong). When types2 now matches where a GCCGO error previously
occurred, I transformed GCCGO_ERROR -> ERROR. When types2 no longer
reports an error in a certain place, I transformed ERROR -> GCCGO_ERROR.
When types2 reports an error in a new place, I used GC_ERROR.
The remaining entries in types2Failures are things that I think we
probably still need to fix - either actually missing errors in types2,
or cases where types2 gives worse errors than -G=0.
Change-Id: I7f01e82b322b16094096b67d7ed2bb39b410c34f
Reviewed-on: https://go-review.googlesource.com/c/go/+/372854
Trust: Dan Scales <danscales@google.com>
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
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Gccgo doesn't have the same equivalent of file name and
package as the gc compiler, so the error messages are
necessarily different.
R=golang-dev, rsc
CC=golang-dev
https://golang.org/cl/40510048
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Fixes issues 6420.
R=ken2
CC=golang-dev
https://golang.org/cl/13703044
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R=golang-dev, gri
CC=golang-dev
https://golang.org/cl/5674112
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X ,s;^// \$G (\$D/)?\$F\.go *$;// compile;g
X ,s;^// \$G (\$D/)?\$F\.go && \$L \$F\.\$A *$;// build;g
X ,s;^// \$G (\$D/)?\$F\.go && \$L \$F\.\$A && \./\$A\.out *$;// run;g
X ,s;^// errchk \$G( -e)? (\$D/)?\$F\.go *$;// errorcheck;g
R=golang-dev, bradfitz
CC=golang-dev
https://golang.org/cl/5673079
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// ERROR "pattern1" "pattern2"
means that there has to be one or more
lines matching pattern1 and then excluding
those, there have to be one or more lines
matching pattern2. So if you expect two
different error messages from a particular
line, writing two separate patterns checks
that both errors are produced.
Also, errchk now flags lines that produce
more errors than expected. Before, as long as
at least one error matched the pattern, all the
others were ignored.
Revise tests to expect or silence these
additional errors.
R=lvd, r, iant
CC=golang-dev
https://golang.org/cl/4869044
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The ken directory is untouched so we have some examples with explicit semis.
R=gri
CC=golang-dev
https://golang.org/cl/2157041
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import1.go:12:8: error: redefinition of ‘bufio’
import1.go:11:8: note: previous definition of ‘bufio’ was here
import1.go:16:2: error: redefinition of ‘fmt’
import1.go:15:2: note: previous definition of ‘fmt’ was here
import1.go:11:8: error: imported and not used: bufio
R=rsc
CC=golang-dev
https://golang.org/cl/194165
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R=rsc
https://golang.org/cl/173045
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in the presence of yacc lookahead.
better but still not perfect
R=ken
OCL=33541
CL=33541
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bug117.go:13:12: error: reference to undefined field or method
import1.go:9:2: error: redefinition of '.main.bufio'
import1.go:8:2: note: previous definition of '.main.bufio' was here
import1.go:9:2: error: incompatible imported type 'bufio.Error'
interface9.go:25:5: error: incompatible types in assignment (method P requires a pointer)
interface9.go:30:5: error: incompatible types in assignment (method P requires a pointer)
R=rsc
DELTA=5 (0 added, 0 deleted, 5 changed)
OCL=29044
CL=29055
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R=r
DELTA=10 (10 added, 0 deleted, 0 changed)
OCL=28585
CL=28591
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