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graphify/tests
rajatnagda45 5299fb1e81 fix(extract): drop C++ template type parameters from references
A `template<typename T>` binds `T` as a local name, not a corpus symbol, but
`_cpp_collect_type_refs` appended the bare identifiers used in a template
signature or member as type references and ran them through the sourceless-stub
path. Every template in the corpus then collapsed its `T` onto one bare `t`
node — a god node that pollutes god-node rankings, since single-letter type
parameters are not in the analyzer's builtin-noise filter. C#, Java,
TypeScript, Kotlin, Scala, and Go already exclude theirs.

Mirrors that pattern: a new `_cpp_type_parameters_in_scope` helper walks up to
every enclosing `template_declaration`'s `template_parameter_list` and collects
names from its `type_parameter_declaration`/`variadic_type_parameter_declaration`
children (a non-type `int N` parameter is a value and is left alone), and
`_cpp_collect_type_refs` auto-computes and threads that skip set. Genuine user
types and the generic container head still reference.

(cherry picked from commit e3bf52b318)
2026-10-13 11:14:16 +01:00
..