| commit | 9d23f654b0c0c733303ab224b9b6c759dd69eccc | [log] [tgz] |
|---|---|---|
| author | adonovan <adonovan@google.com> | Wed Dec 18 09:59:57 2019 -0800 |
| committer | Copybara-Service <copybara-worker@google.com> | Wed Dec 18 10:01:02 2019 -0800 |
| tree | 6368f2be7f27de1a0a9086dd16687555d0087601 | |
| parent | a95d79037c2124544ed8f26cb53c4c863c303138 [diff] |
bazel packages: precompute 'generator_name' in a syntax traversal Currently, rule instantiation inspects the call stack to find the outermost function call f(name="name", ...), where f is known as the 'generator'. It extracts the name argument from the syntax tree, and records this as the "generator_name" attribute. This means that syntax must be available during evalution, and accessible through the StarlarkThread API. This change augments the existing static syntax tree traversal to find potential generator calls, and records the name of each one, keyed by its call location. Rule instantiation need only find the location of the enclosing call from StarlarkThread, which is reasonable even in a compiled implementation. FuncallExpression is no longer recorded in the StarlarkThread call stack. No behavior change is expected. PiperOrigin-RevId: 286213044
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