Files
carbon-lang/explorer/testdata/impl_match/build_tree.carbon
T
Jon Ross-Perkins 129f31710d Disable autoupdate in explorer tests. (#4023)
Just replacing AUTOUPDATE with NOAUTOUPDATE, and removing the autoupdate
script. Tests will still run, but autoupdate may need to be fixed if
significant changes are made.

I noticed this while trying to autoupdate for #4007 (because we verify
that tests have been autoupdated). Autoupdate was likely broken by
#3449.

Trying to run with no changes gives:

```
CHECK failure at testing/file_test/file_test_base.cpp:801: !absl::GetFlag(FLAGS_test_targets_file).empty(): Missing --test_targets_file.
```

This is because the `file_test` rule creates a file with test inputs
that it runs with, which the prebuilt binary doesn't provide.

A local kludge to create a `file_test` target not using prebuilt_binary
showed another error:

```
: CommandLine Error: Option ': CommandLine Error: Option 'parser_debug' registered more than once!
LLVM ERROR: inconsistency in registered CommandLine options
trace_phase' registered more than once!
LLVM ERROR: inconsistency in registered CommandLine options
```

I'm thinking here that the explorer code hasn't been in enough use, and
we're seeing some rot as a consequence. Rather than trying to maintain
it, I'm suggesting to go with NOAUTOUPDATE.
2024-06-04 16:44:36 +00:00

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// Part of the Carbon Language project, under the Apache License v2.0 with LLVM
// Exceptions. See /LICENSE for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
// NOAUTOUPDATE
package ExplorerTest api;
class S(T:! type) {}
class Z {}
class Tree(L:! type, R:! type) {}
class Leaf {}
interface Foo(T:! type) {}
impl forall [U:! type, T:! Foo(Tree(U, U))] S(T) as Foo(U) {}
alias Level1 = Tree(Leaf, Leaf);
alias Level2 = Tree(Level1, Level1);
alias Level3 = Tree(Level2, Level2);
alias Level4 = Tree(Level3, Level3);
alias Level5 = Tree(Level4, Level4);
impl Z as Foo(Level5) {}
fn F[T:! Foo(Leaf)](x: T) {}
fn Main() -> i32 {
var n: S(S(S(S(S(Z))))) = {};
F(n);
return 0;
}
// CHECK:STDOUT: result: 0