mirror of https://github.com/golang/go.git
We delay all transformations on generic functions, and only do them on instantiated functions, for several reasons, of which one is that otherwise the compiler won't understand the relationship between constrained type parameters. In an instantiation with shape arguments, the underlying relationship between the type arguments are clear and don't lead to compiler errors. This issue is because I missed delaying assignment transformations for variable declarations. So, we were trying to transform an assignment, and the compiler doesn't understand the relationship between the T and U type parameters. The fix is to delay assignment transformations for variable declarations of generic functions, just as we do already for normal assignment statements. A work-around for this issue would be to just separate the assignment from the variable declaration in the generic function (for this case of an assignment involving both of the constrained type parameters). Fixes #50147 Change-Id: Icdbcda147e5c4b386e4715811761cbe73d0d837e Reviewed-on: https://go-review.googlesource.com/c/go/+/371534 Trust: Dan Scales <danscales@google.com> Reviewed-by: Keith Randall <khr@golang.org> |
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| alias3.dir | ||
| asmhdr.dir | ||
| bench | ||
| chan | ||
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| codegen | ||
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| syntax | ||
| typeparam | ||
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| 64bit.go | ||
| 235.go | ||
| README.md | ||
| alg.go | ||
| alias.go | ||
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| align.go | ||
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| escape_selfassign.go | ||
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| fibo.go | ||
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| simassign.go | ||
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| tinyfin.go | ||
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| typecheck.go | ||
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| typeswitch.go | ||
| typeswitch1.go | ||
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| typeswitch2b.go | ||
| typeswitch3.go | ||
| uintptrescapes.go | ||
| uintptrescapes2.go | ||
| uintptrescapes3.go | ||
| undef.go | ||
| unsafebuiltins.go | ||
| used.go | ||
| utf.go | ||
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| varinit.go | ||
| winbatch.go | ||
| writebarrier.go | ||
| zerodivide.go | ||
README.md
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 run run.go
To run just tests from specified files in this directory, execute:
../bin/go run run.go -- 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
gccgoand other Go tool chains.