Issues

• String#toLowerCase fails to lower final sigma after a space or non-cased character

  AssemblyScript/assemblyscript#3063 · Filter by author trackoor opened on Nov 7, 2026

• Speculative type parsing in expressions does not always suppress parse errors

  AssemblyScript/assemblyscript#3062 · Filter by author trackoor opened on Nov 7, 2026

• Bitwise AND on signed i8/i16 skips sign extension when one operand is wrapped or negative

  AssemblyScript/assemblyscript#3061 · Filter by author trackoor opened on Nov 7, 2026

• parseFloat drops powers of 10 for 17+ digit significands with exponents 23..37

  AssemblyScript/assemblyscript#3060 · Filter by author trackoor opened on Nov 7, 2026

• String#indexOf and String#lastIndexOf ignore start offset when search string is empty

  AssemblyScript/assemblyscript#3059 · Filter by author trackoor opened on Nov 7, 2026

• Casting a 32-bit shift with constant shift count >= 32 to u8/i8/u16/i16 skips wrapping

  AssemblyScript/assemblyscript#3058 · Filter by author trackoor opened on Nov 7, 2026

• Explicit bool cast of u8/i8/u16/i16 does not truncate high bits

  AssemblyScript/assemblyscript#3057 · Filter by author trackoor opened on Nov 7, 2026

• Classes

  question
  AssemblyScript/assemblyscript#3052 · Filter by author Gouvernathor opened on Oct 10, 2026
  7

• "+=" for an operand with side effects causes miscompilation

  bug
  AssemblyScript/assemblyscript#3051 · Filter by author hungryzzz opened on Oct 4, 2026

• Inlined constructor compile failed

  bug
  AssemblyScript/assemblyscript#3050 · Filter by author hungryzzz opened on Oct 4, 2026

• <i32>I++ compile failed

  bug
  AssemblyScript/assemblyscript#3049 · Filter by author Changqing-JING opened on Oct 4, 2026

• Crash when builtin trace is used as a value in expressions

  bug
  AssemblyScript/assemblyscript#3048 · Filter by author hungryzzz opened on Oct 3, 2026

• Crash when compiling an exported declared function with an optional parameter

  bug
  AssemblyScript/assemblyscript#3047 · Filter by author hungryzzz opened on Oct 3, 2026

• Crash when compiling an exported declare function with a default parameter value

  bug
  AssemblyScript/assemblyscript#3046 · Filter by author hungryzzz opened on Oct 3, 2026

• Crash on invalid abstract export class declaration inside a namespace

  bug
  AssemblyScript/assemblyscript#3045 · Filter by author hungryzzz opened on Oct 3, 2026

• Crash on recursive generic base type

  bug
  AssemblyScript/assemblyscript#3044 · Filter by author hungryzzz opened on Oct 3, 2026

• ASC crash when overriding a method in a class extending an undefined base class

  bug
  AssemblyScript/assemblyscript#3043 · Filter by author hungryzzz opened on Oct 3, 2026

• TypeError: WebAssembly.compile expects a Response object in WebContainer environments

  bug
  AssemblyScript/assemblyscript#3027 · Filter by author zion-sati opened on Jun 11, 2026

• Transform readFile/writeFile methods are not called

  bug
  AssemblyScript/assemblyscript#3022 · Filter by author ye-yu opened on Apr 29, 2026
  1

• [Task] Replace Grisu2 with Xjb for float-to-string conversion

  enhancementperformancestandard library
  AssemblyScript/assemblyscript#3012 · Filter by author MaxGraey opened on Apr 10, 2026

• Feature Request: + operator should join non-string types if .toString() method exists

  enhancement
  AssemblyScript/assemblyscript#2991 · Filter by author JairusSW opened on Mar 15, 2026

• Incorrect glue code assembly. Failed to instantiate WASM.

  bug
  AssemblyScript/assemblyscript#2980 · Filter by author ZababurinSergei opened on Feb 16, 2026

• A peculiar discovery, unsure if it's a bug.

  bug
  AssemblyScript/assemblyscript#2979 · Filter by author yoyo837 opened on Jan 28, 2026

• Missing docs: override doesn't do anything in @unmanaged classes

  bug
  AssemblyScript/assemblyscript#2973 · Filter by author geraintluff opened on Jan 9, 2026

• Pre-initialised UTF string constants with memory.data<>

  enhancement
  AssemblyScript/assemblyscript#2972 · Filter by author geraintluff opened on Jan 9, 2026