Running clojure.core.typed's runtime contract tests (typed/runtime.jvm,
test_contract — 5/5 pass) surfaced two general jolt gaps, both runtime, both
JVM-certified:
- instance? Object / java.lang.Object returned false for everything. Object is
the root of the type hierarchy: every non-nil value is an instance of Object,
nil is not. core.typed's (instance-c Object) contract depends on this; many
libraries do.
- @Compiler/LINE and @Compiler/COLUMN (clojure.lang.Compiler statics — Vars on
the JVM holding the line/column of the form being compiled) were unresolved.
Macros read @Compiler/LINE as a fallback when &form carries no position. Now
backed by derefable cells updated per top-level form, like *current-source*.
The core.typed type checker itself (tools.analyzer.jvm + ASM bytecode +
clojure.lang.Compiler internals) and the cljs runtime are not portable, so the
checker/check-ns surface is out of scope; this is the runtime contract layer.
make test green (+4 corpus rows, 0 new divergences), shakesmoke byte-identical.
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