Host shims and protocol fixes shaken out by aws-api

Running cognitect aws-api's pure test namespaces (signing/shapes/protocols/
util/retry/endpoints) surfaced general gaps:

- extend-protocol/extend-type accept a computed class type, e.g.
  (Class/forName "[B") for the byte-array class — the byte-array idiom data.json
  and aws-api use. The macro grouping handled only symbol/nil heads (it crashed on
  a list type); type->name resolves a Class value via .getName; a byte-array
  dispatches on the "[B" host tag.
- java.nio.ByteBuffer over a jolt byte-array (wrap/allocate/get/put/array/
  remaining/position/limit/duplicate/flip), plus extend-protocol to it.
- java.util.Arrays (equals/copyOf/copyOfRange/fill) and java.util.Random
  (nextBytes/nextInt/…).
- java.net.URI/create and clojure.lang.RT/baseLoader statics.
- clojure.core.async/promise-chan (deliver-once, peek-don't-pop).
- a failed java.time parse throws DateTimeParseException (typed), so
  (catch DateTimeParseException …) matches it instead of leaking an untyped
  condition.

The XML side lives in the jolt-lang/xml library (libxml2 over jolt.ffi); ByteBuffer
stays in core as a generic java.nio primitive.

Gate: make test green (corpus +6 JVM-certified rows, 0 NEW divergence; unit
553/553; SCI 211).
This commit is contained in:
Yogthos 2026-06-25 16:56:48 -04:00
parent 05f29d1bcb
commit 829c251bca
12 changed files with 762 additions and 549 deletions

View file

@ -24,6 +24,12 @@
{:suite "try / multi-catch" :label "a host condition is caught by its RuntimeException subclass" :expected ":arith" :actual "(try (/ 1 0) (catch ArithmeticException _ :arith) (catch Throwable _ :other))"}
{:suite "locking" :label "returns the body value" :expected "42" :actual "(let [o (Object.)] (locking o 42))"}
{:suite "locking" :label "reentrant on the same object" :expected "42" :actual "(let [o (Object.)] (locking o (locking o 42)))"}
{:suite "extend-protocol / class value" :label "extend to (Class/forName \"[B\") dispatches a byte-array" :expected "[:ba :str]" :actual "(do (defprotocol P (m [x])) (extend-protocol P (Class/forName \"[B\") (m [bs] :ba) String (m [s] :str)) [(m (byte-array 1)) (m \"x\")])"}
{:suite "interop / ByteBuffer" :label "wrap then remaining + array" :expected "[3 [1 2 3]]" :actual "(let [bb (java.nio.ByteBuffer/wrap (byte-array [1 2 3]))] [(.remaining bb) (vec (.array bb))])"}
{:suite "interop / ByteBuffer" :label "get drains into a byte-array" :expected "[1 2]" :actual "(let [bb (java.nio.ByteBuffer/wrap (byte-array [1 2])) d (byte-array 2)] (.get bb d) (vec d))"}
{:suite "interop / Arrays" :label "equals on byte arrays" :expected "true" :actual "(java.util.Arrays/equals (byte-array [1 2 3]) (byte-array [1 2 3]))"}
{:suite "interop / Arrays" :label "equals on unequal byte arrays" :expected "false" :actual "(java.util.Arrays/equals (byte-array [1 2]) (byte-array [1 9]))"}
{:suite "interop / URI" :label "URI/create static factory" :expected "\"x.com\"" :actual "(.getHost (java.net.URI/create \"http://x.com/p\"))"}
{:suite "interop / Thread" :label "start + join runs the thunk" :expected "7" :actual "(let [a (atom 0) t (Thread. (fn [] (reset! a 7)))] (.start t) (.join t) (deref a))"}
{:suite "interop / CountDownLatch" :label "countDown to zero, await returns" :expected "0" :actual "(let [l (java.util.concurrent.CountDownLatch. 1)] (.countDown l) (.await l) (.getCount l))"}
{:suite "interop / SoftReference" :label "get returns the referent" :expected ":v" :actual "(.get (java.lang.ref.SoftReference. :v))"}