Jon Brandvein

Clarify whether it's valid for getattr/hasattr to retrieve field names that aren't identifiers

1

See bazelbuild/bazel#6095 for how this applies to Bazel.

We don't support exceptions, or any other way of intercepting a failure, unless the application defines a primitive for doing so (as we do in our unit tests). This means...

Creating a cyclic structure is allowed, even with recursion disabled. But builtin methods can perform their own recursion over a hierarchical structure. We should specify whether implementations are obligated to...

ToolchainInfo Schema

10

This proposal came out of a discussion about best practices for `ToolchainInfo` objects. I don't think we have a need to prioritize implementing this at the moment, but we can...

Expose File.is_directory

14

[`File.is_directory`](https://github.com/bazelbuild/bazel/blob/0.16.1/src/main/java/com/google/devtools/build/lib/skylarkbuildapi/FileApi.java#L75) has been around for a while but is undocumented (and therefore unsupported). Yet directories (internally, `TreeArtifact`s) have increasing support in the Starlark action API. In particular, if they are...