Keith Randall deb6790fcf cmd/compile: remove implicit deref from len(p) where p is ptr-to-array
func f() *[4]int { return nil }
_ = len(f())

should not panic. We evaluate f, but there isn't a dereference
according to the spec (just "arg is evaluated").

Update #72844

Change-Id: Ia32cefc1b7aa091cd1c13016e015842b4d12d5b4
Reviewed-on: https://go-review.googlesource.com/c/go/+/658096
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Robert Griesemer <gri@google.com>
Reviewed-by: Keith Randall <khr@google.com>
2025-03-19 09:55:46 -07:00
..
2024-03-25 19:21:35 +00:00
2023-01-31 19:43:07 +00:00
2023-04-11 20:56:32 +00:00
2023-10-06 21:01:50 +00:00
2020-11-28 02:31:54 +00:00
2024-04-04 14:29:45 +00:00
2021-10-06 15:53:04 +00:00

The test directory contains tests of the Go tool chain and runtime. It includes black box tests, regression tests, and error output tests. They are run as part of all.bash.

To run just these tests, execute:

../bin/go test cmd/internal/testdir

To run just tests from specified files in this directory, execute:

../bin/go test cmd/internal/testdir -run='Test/(file1.go|file2.go|...)'

Standard library tests should be written as regular Go tests in the appropriate package.

The tool chain and runtime also have regular Go tests in their packages. The main reasons to add a new test to this directory are:

  • it is most naturally expressed using the test runner; or
  • it is also applicable to gccgo and other Go tool chains.