Issues

• TIC soft bounds: narrow-int arithmetic where explicitly demanded (x:byte = a + 1)

  On discussionSyntaxTic
  tmteam/NFun#135 · Filter by author tmteam opened on Jul 8, 2026
  2

• Semantics of ?. when receiver is none — inconsistent today; needs decision (Bug hunt #48)

  On discussionSyntax
  tmteam/NFun#134 · Filter by author tmteam opened on Jun 25, 2026 · non vm expression evaluator

• Newline-as-continuation: inconsistent operator behavior in lang mode (Bug hunt #43)

  NfunLanguageOn discussionSyntax
  tmteam/NFun#133 · Filter by author tmteam opened on Jun 25, 2026

• Map.keys() and Map.values() not registered

  Definitely nice to have
  tmteam/NFun#132 · Filter by author tmteam opened on Jun 18, 2026

• TIC: multiple CompCs (typeclass) constraints on same generic don't intersect — order-dependent resolution

  tmteam/NFun#131 · Filter by author tmteam opened on Jun 16, 2026
  2

• Extend Immutable typeclass beyond primitives — recursive predicate for FixedArray, Fun, immutable struct

  tmteam/NFun#129 · Filter by author tmteam opened on Jun 16, 2026

• FU822: Complex recursion (mutual recursion not supported)

  BrutalDefinitely nice to haveTic
  tmteam/NFun#122 · Filter by author tmteam opened on May 10, 2026

• Lang mode: type narrowing in block bodies (early-return pattern)

  Definitely nice to haveNfunLanguage
  tmteam/NFun#120 · Filter by author tmteam opened on May 6, 2026

• Lang mode: type narrowing in block bodies (early-return pattern)

  Definitely nice to haveNfunLanguage
  tmteam/NFun#119 · Filter by author tmteam opened on May 6, 2026

• Lang mode: recursive functions on named type trees fail

  BrutalbugNfunLanguageTic
  tmteam/NFun#118 · Filter by author tmteam opened on May 6, 2026

• Struct mutability: MutableStruct type + field assignment

  NfunLanguage
  tmteam/NFun#117 · Filter by author tmteam opened on May 6, 2026

• Type system: enum / union type design

  NfunLanguageOn discussionSyntaxWhat if?
  tmteam/NFun#116 · Filter by author tmteam opened on May 6, 2026

• Lang: multiline comments — syntax decision

  On discussionSyntaxWhat if?
  tmteam/NFun#115 · Filter by author tmteam opened on May 6, 2026

• Lang: do: block expression

  NfunLanguageSyntaxWhat if?
  tmteam/NFun#114 · Filter by author tmteam opened on May 6, 2026

• Lang: val/var — are explicit mutability declarations needed?

  NfunLanguageSyntaxWhat if?
  tmteam/NFun#113 · Filter by author tmteam opened on May 6, 2026

• Collections: type hierarchy, mutability, Map/Set/Stack/Queue

  NfunLanguage
  tmteam/NFun#112 · Filter by author tmteam opened on May 6, 2026

• NFun-Lang: full language mode

  BrutalNfunLanguageSyntax
  tmteam/NFun#111 · Filter by author tmteam opened on May 6, 2026

• Collection type narrowing: all()/any() guard-based narrowing

  What if?
  tmteam/NFun#110 · Filter by author tmteam opened on Apr 28, 2026

• Lifted comparisons for Optional types (C#-style nullable operators)

  tmteam/NFun#109 · Filter by author tmteam opened on Apr 28, 2026

• Collection narrowing: filter(rule it != none) should narrow T?[] → T[]

  tmteam/NFun#108 · Filter by author tmteam opened on Apr 22, 2026

• Spread operator (...)

  Definitely nice to haveSyntax
  tmteam/NFun#103 · Filter by author tmteam opened on Mar 19, 2026
  1

• When expression syntax (pattern matching)

  Definitely nice to haveSyntax
  tmteam/NFun#102 · Filter by author tmteam opened on Mar 18, 2026

• Pre-inference usage analysis for TIC optimization

  What if?
  tmteam/NFun#101 · Filter by author tmteam opened on Mar 18, 2026

• NFun as data language (JSON/TOML alternative)

  ApiDefinitely nice to have
  tmteam/NFun#100 · Filter by author tmteam opened on Mar 18, 2026

• Candidates for tail lambda / hi-order function syntax

  tmteam/NFun#95 · Filter by author tmteam opened on Mar 18, 2026