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js backend: lower %bytes.unsafe_{read,write}_uint64_{le,be} to DataView get/setBigUint64 (12-18x)

enhancement

Status: Open.

#4098 In moonbitlang/core;

· bobzhang opened on Aug 19, 2026

immut/vector: concat overflows size silently (structural sharing makes it cheap to reach)

Status: Open.

#4085 In moonbitlang/core;

· bobzhang opened on Aug 16, 2026

quickcheck: Arbitrary is derivable but Shrink is not

feature request

Status: Open.

#4079 In moonbitlang/core;

· bobzhang opened on Aug 16, 2026

quickcheck: Shrink trait is not reachable from the quickcheck facade

feature request

Status: Open.

#4077 In moonbitlang/core;

· bobzhang opened on Aug 16, 2026

math: pow special cases pow(1, NaN) and pow(±1, ±inf) return NaN, diverging from IEEE 754/C99 pow

Status: Open.

#4059 In moonbitlang/core;

· bobzhang opened on Aug 14, 2026

json: parser aborts on strings containing lone surrogates combined with escapes

Status: Open.

#4049 In moonbitlang/core;

· bobzhang opened on Aug 14, 2026

RFC: A standard database-access interface (Driver seam) for MoonBit

Status: Open.

#3953 In moonbitlang/core;

· Lfan-ke opened on Jul 28, 2026

#locals does not propagate through calls to #locals-annotated callees

Status: Open.

#3832 In moonbitlang/core;

· bobzhang opened on Jul 17, 2026

bytes/ and string/ regex engines share ~365 lines of byte-identical files

Status: Open.

#3828 In moonbitlang/core;

· bobzhang opened on Jul 16, 2026

bigint: to_string_radix is O(n²) for non-power-of-two radixes other than 10

Status: Open.

#3827 In moonbitlang/core;

· bobzhang opened on Jul 16, 2026

strconv: mantissa digit parsing reads one character at a time

Status: Open.

#3825 In moonbitlang/core;

· bobzhang opened on Jul 16, 2026

sorted_set: union defensively copies both trees and recounts the result size

Status: Open.

#3824 In moonbitlang/core;

· bobzhang opened on Jul 16, 2026