Generics — GCShape Stenciling and What Go Actually Does
Understand Go's generic compilation strategy, when generics approach monomorphic performance, and when they don't.
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What this chapter teaches
Generics are zero-cost, like C++ templates.
Go uses shape-based stenciling and dictionaries. Pointer types can share a body; value instantiations can also receive dictionaries. Actual overhead depends on operations, inlining, and call sites.
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