When constant values change but stringer has not
been run again, we can get misleading string values.
Protect against this by generating code that will fail
with a compiler error when this happens.
Most compilers should be smart enough to omit the
code containing the checks.
Change-Id: I7a36d20f014cba0e7d88851d1b649a098ee30d76
Reviewed-on: https://go-review.googlesource.com/c/tools/+/163637
Run-TryBot: Daniel Martí <mvdan@mvdan.cc>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Daniel Martí <mvdan@mvdan.cc>
This permits constants of the form `const X = T(A)` to add `X` to the
stringer output for type `T`.
While those constants can be rewritten as `const X T = T(A)`, that
becomes tedious and visually noisy when `T` is a long name. It is quite
easy to address this easy and common case, while not attempting to solve
this with full generality.
Fixes#11581.
Change-Id: Ifb8e43515f05493de190e02577260d94dd851581
Reviewed-on: https://go-review.googlesource.com/c/146577
Run-TryBot: David Symonds <dsymonds@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rob Pike <r@golang.org>
This is reapplying CL121995 after rolling back the change to the importing
methods. There is still a need for a flag to control tags.
The original CL decription:
The feature has been requested but, like build tags in general,
only works in a directory, not when files are specified explicitly.
Unlike the build tools, report when the feature is misused like this
to avoid confusion.
Fixesgolang/go#9449
Change-Id: I732627d5f2e6323367e3bdd5de746923868890a9
Reviewed-on: https://go-review.googlesource.com/122537
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Roll back my two recent changes. Stringer is now very slow again,
but works in most use cases.
My git foo is insufficient to do this as a revert, but it is a by-hand
reversion of CLs
https://go-review.googlesource.com/121884https://go-review.googlesource.com/121995
See the issue for a long conversation about the general problem.
Update golang/go#10249
Update golang/go#25650
Change-Id: I7b6ce352a4c7ebf0977883509e9d7189aaac1251
Reviewed-on: https://go-review.googlesource.com/122535
Run-TryBot: Rob Pike <r@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
The feature has been requested but, like build tags in general,
only works in a directory, not when files are specified explicitly.
Unlike the build tools, report when the feature is misused like this
to avoid confusion.
Fixesgolang/go#9449
Change-Id: I079d363c5eeb5bc647fd2f0f3d88d28d630644d8
Reviewed-on: https://go-review.googlesource.com/121995
Reviewed-by: Ian Lance Taylor <iant@golang.org>
When String() was called on the maximum value of an integer type (eg
255 for uint8) this would cause an integer overflow, which would cause
an index error later in the code.
Fixed by re-arranging the code slightly.
Fixesgolang/go#10563
Change-Id: I9fd016afc5eea22adbc3843f6081091fd50deccf
Reviewed-on: https://go-review.googlesource.com/9255
Reviewed-by: Rob Pike <r@golang.org>
Avoid error "could not import C (can't find import: C)"
Fixesgolang/go#9169.
LGTM=adonovan, r
R=golang-codereviews, adonovan, r
CC=golang-codereviews
https://golang.org/cl/184730043
