delta/go-git.git/src/runtime/error.go, branch dev.boringcrypto

all: gofmt main repo

2022-04-11T16:34:30+00:00

[This CL is part of a sequence implementing the proposal #51082.
The design doc is at https://go.dev/s/godocfmt-design.]

Run the updated gofmt, which reformats doc comments,
on the main repository. Vendored files are excluded.

For #51082.

Change-Id: I7332f099b60f716295fb34719c98c04eb1a85407
Reviewed-on: https://go-review.googlesource.com/c/go/+/384268
Reviewed-by: Jonathan Amsterdam 
Reviewed-by: Ian Lance Taylor

all: gofmt -w -r 'interface{} -> any' src

2021-12-13T18:45:54+00:00

And then revert the bootstrap cmd directories and certain testdata.
And adjust tests as needed.

Not reverting the changes in std that are bootstrapped,
because some of those changes would appear in API docs,
and we want to use any consistently.
Instead, rewrite 'any' to 'interface{}' in cmd/dist for those directories
when preparing the bootstrap copy.

A few files changed as a result of running gofmt -w
not because of interface{} -> any but because they
hadn't been updated for the new //go:build lines.

Fixes #49884.

Change-Id: Ie8045cba995f65bd79c694ec77a1b3d1fe01bb09
Reviewed-on: https://go-review.googlesource.com/c/go/+/368254
Trust: Russ Cox 
Run-TryBot: Russ Cox 
Reviewed-by: Robert Griesemer 
TryBot-Result: Gopher Robot

cmd/compile: allow conversion from slice to array ptr

2021-04-21T00:53:48+00:00

Panic if the slice is too short.

Updates #395

Change-Id: I90f4bff2da5d8f3148ba06d2482084f32b25c29a
Reviewed-on: https://go-review.googlesource.com/c/go/+/301650
Trust: Josh Bleecher Snyder 
Run-TryBot: Josh Bleecher Snyder 
Reviewed-by: Matthew Dempsky

runtime/debug: provide Addr method for errors from SetPanicOnFault

2020-09-18T17:21:06+00:00

When we're building a panic that's triggered by a memory fault when
SetPanicOnFault has been called, include an Addr method. This
method reports the address at which the fault occurred.

Fixes #37023

RELNOTE=yes

Change-Id: Idff144587d6b75070fdc861a36efec76f4ec7384
Reviewed-on: https://go-review.googlesource.com/c/go/+/249677
Run-TryBot: Keith Randall 
TryBot-Result: Go Bot 
Trust: Keith Randall 
Reviewed-by: Russ Cox

runtime: during panic, print value instead of address, if kind is printable

2020-03-03T02:34:32+00:00

Make panics more useful by printing values, if their
underlying kind is printable, instead of just their memory address.

Thus now given any custom type derived from any of:
    float*, int*, string, uint*

if we have panic with such a result, its value will be printed.

Thus given any of:
    type MyComplex128 complex128
    type MyFloat64 float64
    type MyString string
    type MyUintptr uintptr

    panic(MyComplex128(32.1 + 10i))
    panic(MyFloat64(-93.7))
    panic(MyString("This one"))
    panic(MyUintptr(93))

They will now print in the panic:

    panic: main.MyComplex64(+1.100000e-001+3.000000e+000i)
    panic: main.MyFloat64(-9.370000e+001)
    panic: main.MyString("This one")
    panic: main.MyUintptr(93)

instead of:

    panic: (main.MyComplex128) (0xe0100,0x138cc0)
    panic: (main.MyFloat64) (0xe0100,0x138068)
    panic: (main.MyString) (0x48aa00,0x4c0840)
    panic: (main.MyUintptr) (0xe0100,0x137e58)

and anything else will be printed as in the past with:

    panic: (main.MyStruct) (0xe4ee0,0x40a0e0)

Also while here, updated the Go1.15 release notes.

Fixes #37531

Change-Id: Ia486424344a386014f2869ab3483e42a9ef48ac4
Reviewed-on: https://go-review.googlesource.com/c/go/+/221779
Run-TryBot: Emmanuel Odeke 
TryBot-Result: Gobot Gobot 
Reviewed-by: Ian Lance Taylor

all: fix a bunch of misspellings

2019-11-15T21:04:43+00:00

Change-Id: I5b909df0fd048cd66c5a27fca1b06466d3bcaac7
GitHub-Last-Rev: 778c5d21311abee09a5fbda2e4005a5fd4cc3f9f
GitHub-Pull-Request: golang/go#35624
Reviewed-on: https://go-review.googlesource.com/c/go/+/207421
Run-TryBot: Ian Lance Taylor 
TryBot-Result: Gobot Gobot 
Reviewed-by: Ian Lance Taylor

cmd/compile,runtime: provide index information on bounds check failure

2019-03-18T17:33:38+00:00

A few examples (for accessing a slice of length 3):

   s[-1]    runtime error: index out of range [-1]
   s[3]     runtime error: index out of range [3] with length 3
   s[-1:0]  runtime error: slice bounds out of range [-1:]
   s[3:0]   runtime error: slice bounds out of range [3:0]
   s[3:-1]  runtime error: slice bounds out of range [:-1]
   s[3:4]   runtime error: slice bounds out of range [:4] with capacity 3
   s[0:3:4] runtime error: slice bounds out of range [::4] with capacity 3

Note that in cases where there are multiple things wrong with the
indexes (e.g. s[3:-1]), we report one of those errors kind of
arbitrarily, currently the rightmost one.

An exhaustive set of examples is in issue30116[u].out in the CL.

The message text has the same prefix as the old message text. That
leads to slightly awkward phrasing but hopefully minimizes the chance
that code depending on the error text will break.

Increases the size of the go binary by 0.5% (amd64). The panic functions
take arguments in registers in order to keep the size of the compiled code
as small as possible.

Fixes #30116

Change-Id: Idb99a827b7888822ca34c240eca87b7e44a04fdd
Reviewed-on: https://go-review.googlesource.com/c/go/+/161477
Run-TryBot: Keith Randall 
TryBot-Result: Gobot Gobot 
Reviewed-by: David Chase

runtime: don't say "different packages" if they may not be different

2018-07-11T21:34:05+00:00

Fix the panic message produced for an interface conversion error to
only say "types from different packages" if they are definitely from
different packges. If they may be from the same package, say "types
from different scopes."

Updates #18911
Fixes #26094

Change-Id: I0cea50ba31007d88e70c067b4680009ede69bab9
Reviewed-on: https://go-review.googlesource.com/123395
Reviewed-by: Austin Clements

runtime: slightly better error message for assertion panics with identical looking types

2018-06-05T00:29:50+00:00

Fixes #18911.

Change-Id: Ice10f37460a4f0a66cddeacfe26c28045f5e60fe
Reviewed-on: https://go-review.googlesource.com/116255
Run-TryBot: Robert Griesemer 
TryBot-Result: Gobot Gobot 
Reviewed-by: Keith Randall

internal/bytealg: move IndexByte asssembly to the new bytealg package

2018-03-02T22:46:15+00:00

Move the IndexByte function from the runtime to a new bytealg package.
The new package will eventually hold all the optimized assembly for
groveling through byte slices and strings. It seems a better home for
this code than randomly keeping it in runtime.

Once this is in, the next step is to move the other functions
(Compare, Equal, ...).

Update #19792

This change seems complicated enough that we might just declare
"not worth it" and abandon.  Opinions welcome.

The core assembly is all unchanged, except minor modifications where
the code reads cpu feature bits.

The wrapper functions have been cleaned up as they are now actually
checked by vet.

Change-Id: I9fa75bee5d85db3a65b3fd3b7997e60367523796
Reviewed-on: https://go-review.googlesource.com/98016
Run-TryBot: Keith Randall 
TryBot-Result: Gobot Gobot 
Reviewed-by: Brad Fitzpatrick