DecodeUtf16.valid: def of bendvy-ecs-core@0.1.0.3
Import: import bendvy-ecs-core@0.1.0.3/decode_utf16.bend as DecodeUtf16
Lines 2-7 of bendvy-ecs-core@0.1.0.3/decode_utf16.bend: https://jend.leeeet.dev/read.txt?path=bendvy-ecs-core@0.1.0.3/decode_utf16.bend&start_line=2&end_line=7

import Base

# JS strings are UTF-16 code-unit sequences, including lone surrogates.
# Bend String is Unicode-scalar text; no invalid Chr is constructed here.
def valid(units:List<&2,U32>) -> Bool:
  match units:
    case []: True{}
    case unit <> tail: U32.is_le(unit,65535) && valid(tail)

Uses (5):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Bool
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Bool.and
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=List
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=U32
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=U32.is_le