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5165d71d7b
The C++ def/use harvester only recorded a def when an init_declarator's declarator was a plain identifier, so a structured binding (auto [a,b] = mk(), incl. the auto& reference form whose binding sits under a reference_declarator) declared only the first name in phase 1 and emitted ZERO defs in phase 2 — a,b were walked as spurious uses and later use(a)/use(b) resolved to a synthetic module binding, silently corrupting REACHING_DEF/taint for an idiomatic C++17 shape. Unwrap the structured_binding_declarator in both phases and def every identifier leaf; result-of-initializer flows to the whole list. Inert for C (no structured bindings). Characterization tests added (plain + reference form). Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com> |
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