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Phase 4 cont. The crossings:
* Method dispatch — Methods record under #method/TYPE/NAME (same
mangled-key scheme the type checker uses, intentionally so eval
and type checker can converge on a shared method-table protocol
later). go-eval-method-call: lookup the receiver type's method,
bind receiver param to the struct value, evaluate body. Value and
pointer receivers treated the same in v0 (pointer semantics not
modelled yet).
* Method-call dispatch — In go-eval's :app branch, head=:select
routes to go-eval-method-call. If the receiver is not a struct,
falls back to the field-as-callable path.
* Unary prefix ops — go-eval's :app branch checks for 1-arg :var
head with op name "-" / "+" / "!". (Other unary ops like
*p / &v / <-ch / ^x deferred until pointer / channel / bitwise
semantics arrive.)
End-to-end programs verified:
* recursive fib(10) = 55
* struct + method + iterative loop (counter bump 7 times)
* linear search (returns index or -1)
* factorial via method on Counter (= 120)
* count odd numbers in 1..10 = 5
**Phase 4 acceptance bar (80+) crossed: eval 80/80, total 457/457.**
Remaining Phase 4 work (closures, multi-return, full slice triple,
pointer semantics) refines but doesn't gate Phase 5 (goroutines).
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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