Issues

• bug: E0070 says "may be null" when the real mismatch is a type argument (H[Object]? into H[String]?)

  kind:bugP3source:agentstatus:ready
  onion-lang/onion#2343 · Filter by author kmizu opened on Oct 22, 2026

• bug: xs.addAll(o) with List[T] is rejected inside a generic class (? extends T vs T)

  kind:bugP2source:probestatus:ready
  onion-lang/onion#2341 · Filter by author kmizu opened on Oct 22, 2026

• bug: assigning a val from inside a function compiles, then the write is lost or crashes

  kind:bugP2source:agentstatus:ready
  onion-lang/onion#2340 · Filter by author kmizu opened on Oct 22, 2026

• bug: T extends Comparable[T] — a T is rejected where Comparable[T] is expected

  kind:bugP2source:agentstatus:ready
  onion-lang/onion#2338 · Filter by author kmizu opened on Oct 22, 2026
  2

• bug: a @TailRecursive group member overloaded outside the group fails JVM verification (VerifyError)

  kind:bugP2source:probestatus:ready
  onion-lang/onion#2337 · Filter by author kmizu opened on Oct 22, 2026

• bug: a lambda that assigns a captured parameter does not write it back (silent wrong result)

  kind:bugP2source:probestatus:ready
  onion-lang/onion#2335 · Filter by author kmizu opened on Oct 21, 2026

• bug: a U still fits a T slot through a call argument or a T? slot, then throws ClassCastException

  kind:bugP2source:agentstatus:ready
  onion-lang/onion#2332 · Filter by author kmizu opened on Oct 21, 2026
  2

• bug: the nullable-function-type hint prints can''t in English

  kind:bugP3source:probestatus:ready
  onion-lang/onion#2331 · Filter by author kmizu opened on Oct 21, 2026

• bug: tail-call optimisation skips expression-bodied methods, so = if … else f(…) overflows the stack

  kind:bugP2source:probestatus:in-progressstatus:ready
  onion-lang/onion#2330 · Filter by author kmizu opened on Oct 21, 2026
  2

• bug: Yaml::parse still returns wrong data, with no error, for a whole-line flow mapping and for tags

  kind:bugP3source:agentstatus:ready
  onion-lang/onion#2327 · Filter by author kmizu opened on Oct 21, 2026

• bug: a generic call never checks inferred type arguments against their bounds, so it compiles and throws ClassCastException

  kind:bugP2source:agentstatus:in-progressstatus:ready
  onion-lang/onion#2325 · Filter by author kmizu opened on Oct 21, 2026
  1

• bug: a hex literal ending in B or S silently becomes a Byte or Short (0xAB is 10)

  kind:bugsource:agentstatus:ready
  onion-lang/onion#2324 · Filter by author kmizu opened on Oct 21, 2026

• Errors inside an ADT enum case point at the enum keyword (1:1), not the case

  kind:bugP3source:agentstatus:ready
  onion-lang/onion#2322 · Filter by author kmizu opened on Oct 21, 2026

• bug: an unclosed #{ two levels deep is reported at the outermost #{

  kind:bugP3source:agentstatus:ready
  onion-lang/onion#2320 · Filter by author kmizu opened on Oct 21, 2026

• bug: -c on a Char is typed Char but holds -97; println(-c) crashes in Character.valueOf

  kind:bugP2source:agent
  onion-lang/onion#2318 · Filter by author kmizu opened on Oct 21, 2026

• RFC: should unary - on Byte/Short/Char give an Int, like every other operator?

  kind:rfcP3panel:changessource:agent
  onion-lang/onion#2317 · Filter by author kmizu opened on Oct 21, 2026
  1

• bug: the List-to-array cast hint prints JInteger[] as Int[] and suggests toArray(new Int[0]), which is E0005

  kind:bugP3source:agentstatus:ready
  onion-lang/onion#2314 · Filter by author kmizu opened on Oct 21, 2026
  1

• bug: on a tab-indented line, the ;-after-block hint fires where no } precedes the ;

  kind:bugP3source:probestatus:ready
  onion-lang/onion#2312 · Filter by author kmizu opened on Oct 21, 2026
  1

• bug: an as cast that can never succeed still compiles when the source is nullable, or both sides are arrays

  kind:bugP3source:agentstatus:ready
  onion-lang/onion#2309 · Filter by author kmizu opened on Oct 21, 2026

• bug: assigning a U to a T field compiles for unrelated type variables, then throws ClassCastException

  kind:bugP2source:agentstatus:in-progressstatus:ready
  onion-lang/onion#2308 · Filter by author kmizu opened on Oct 20, 2026
  2

• Files::copyDir still recurses when dst reaches into src through a symlink

  kind:bugP3source:agentstatus:ready
  onion-lang/onion#2304 · Filter by author kmizu opened on Oct 20, 2026

• foreach (x, y) in records fails with "entrySet() not found" and "operator + for K, V"

  kind:frictionP3source:probestatus:ready
  onion-lang/onion#2301 · Filter by author kmizu opened on Oct 20, 2026

• friction: a bare static sibling reference inside a static method is E0002 with no hint that parens work

  kind:frictionP3source:agent
  onion-lang/onion#2299 · Filter by author kmizu opened on Oct 20, 2026

• bug: a bare (parens-less) static sibling method via safe navigation (?.) still crashes with IncompatibleClassChangeError

  kind:bugP3source:agent
  onion-lang/onion#2298 · Filter by author kmizu opened on Oct 20, 2026

• bug: extension blocks for the same type spelled two ways (e.g. List vs java.util.List) don't collide, causing an ambiguous call instead of a clear diagnostic

  kind:bugP3source:agent
  onion-lang/onion#2294 · Filter by author kmizu opened on Oct 20, 2026