css_ast: Support dynamically Visiting & Parsing - #1442
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Consumers must have a concrete node in order to parse, and use the Visit methods, even though it can be useful to parse with a NodeID, or just implement a dynamic node walker. Both of these could be useful in, say, a NodeJS API. This change adds an object-safe NodeVisitor core, with a parse dispatch which combines a ParsedRoot which has an "ErasedNode" type, allowing APIs to generically parse and walk a subtree without a handle on the concrete type.
keithamus
enabled auto-merge (squash)
August 22, 2026 22:14
✅ CI passed
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Consumers must have a concrete node in order to parse, and use the Visit
methods, even though it can be useful to parse with a NodeID, or just implement
a dynamic node walker. Both of these could be useful in, say, a NodeJS API.
This change adds an object-safe NodeVisitor core, with a parse dispatch which
combines a ParsedRoot which has an "ErasedNode" type, allowing APIs to
generically parse and walk a subtree without a handle on the concrete type.