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>
These changes match the following gofrontend error messages:
blank1.go:16:1: error: may not define methods on non-local type
chan/perm.go:28:9: error: expected channel
chan/perm.go:29:11: error: left operand of ‘<-’ must be channel
chan/perm.go:69:9: error: argument must be channel
complit1.go:25:16: error: attempt to slice object that is not array, slice, or string
complit1.go:26:16: error: attempt to slice object that is not array, slice, or string
complit1.go:27:17: error: attempt to slice object that is not array, slice, or string
complit1.go:49:41: error: may only omit types within composite literals of slice, array, or map type
complit1.go:50:14: error: expected struct, slice, array, or map type for composite literal
convlit.go:24:9: error: invalid type conversion (cannot use type unsafe.Pointer as type string)
convlit.go:25:9: error: invalid type conversion (cannot use type unsafe.Pointer as type float64)
convlit.go:26:9: error: invalid type conversion (cannot use type unsafe.Pointer as type int)
ddd1.go:63:9: error: invalid use of ‘...’ calling non-variadic function
fixedbugs/bug176.go:12:18: error: index expression is not integer constant
fixedbugs/bug332.go:17:10: error: use of undefined type ‘T’
fixedbugs/issue4232.go:22:16: error: integer constant overflow
fixedbugs/issue4232.go:33:16: error: integer constant overflow
fixedbugs/issue4232.go:44:25: error: integer constant overflow
fixedbugs/issue4232.go:55:16: error: integer constant overflow
fixedbugs/issue4458.go:19:14: error: type has no method ‘foo’
fixedbugs/issue5172.go:24:14: error: too many expressions for struct
init.go:17:9: error: reference to undefined name ‘runtime’
initializerr.go:26:29: error: duplicate value for index 1
interface/explicit.go:60:14: error: type assertion only valid for interface types
label.go:64:9: error: reference to undefined label ‘go2’
label1.go:18:97: error: continue statement not within for
label1.go:22:97: error: continue statement not within for
label1.go:106:89: error: continue statement not within for
label1.go:108:26: error: invalid continue label ‘on’
label1.go:111:118: error: break statement not within for or switch or select
label1.go:113:23: error: invalid break label ‘dance’
map1.go:64:9: error: not enough arguments
map1.go:65:9: error: not enough arguments
map1.go:67:9: error: argument 1 must be a map
method2.go:36:11: error: reference to undefined field or method ‘val’
method2.go:37:11: error: reference to undefined field or method ‘val’
method2.go:41:12: error: method requires pointer (use ‘(*T).g’)
syntax/chan1.go:13:19: error: send statement used as value; use select for non-blocking send
syntax/chan1.go:17:11: error: send statement used as value; use select for non-blocking send
Change-Id: I98047b60a376e3d2788836300f7fcac3f2c285cb
Reviewed-on: https://go-review.googlesource.com/c/go/+/273527
Trust: Ian Lance Taylor <iant@golang.org>
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Cherry Zhang <cherryyz@google.com>
