Nim

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### Description If a field in an object has an object variant type, the default value from that object variant type is ignored. ```nim type Enum = enum A, B...

jxy

Araq

Method calling proc with return value overlapping declared generic type generates invalid C

2

### Description ```nim type X[T, E] = object m: T B = X[culonglong, cstring] S = ref object of RootObj proc j[T, E](m: X[T, E]): T = discard proc n(T:...

tersec

Extremely slow and inefficient hash function for openArray[byte] for 64-bit systems

14

### Description The [murmurhash implemention](https://github.com/nim-lang/Nim/blob/77c04092e01c7f42b5697ec0ec9e71352f628023/lib/pure/hashes.nim#L306) uses 32-bit limbs (on 64-bit systems) and inserts range checking inside the loop causing it to perform extremely poorly due to branching and inability to...

arnetheduck

Constructing case object with discriminator of field of other object fails with `the field(s) 'g' are in conflict with this value`

4

### Description ```nim type U = object h: bool type K = object case h: bool of true, false: g: int let x = default(U) block: # This does build...

tersec

Inefficient codegen when extracting field from temporary object

4

### Description The following snippet, of critical performance importance when working with [sum types](https://github.com/nim-lang/RFCs/issues/548), generates an inefficient copy, even though it can be seen that lifetimes are bounded in such...

arnetheduck

### Summary In the std/logging module is a *addHandler* proc but a corresponding removeHandler seems to be missing ### Description I'd like to remove already added handlers :) ### Alternatives...

steschuser

Can't create empty openArray with int8

8

### Description ```nim var v: array[1, byte] echo v.toOpenArray(0'i8, -1'i8) ``` at runtime, this crashes with a Defect (!) ### Nim Version 2.0.6 ### Current Output ```text Error: conversion from...

arnetheduck

### Summary When passing parameters to templates, subsitution may cause the parameter to be evaluated multiple times - warn when this happens ### Description ```nim proc f(): int = echo...

arnetheduck

Regression: compiler crash on static inference

10

The following snippet works on Nim v2.0.6 but crashes on Nim-devel ```Nim import std/bitops # -------------------------------------------------------------- type SecretWord* = distinct uint64 const WordBitWidth* = sizeof(SecretWord) * 8 func wordsRequired*(bits: int):...

mratsim