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Generic type class passed as typedesc can cause internal compiler error

bugSomething isn't workingSomething isn't working

compiler/semRelated to semantic-analysis system of the compilerRelated to semantic-analysis system of the compiler

Status: Open.

Bug

#1679 In nim-works/nimskull;

· beef331 opened on Jan 18, 2026

getTypeInst on routines does not produce a type capable of storing the routine

bugSomething isn't workingSomething isn't working

compiler/semRelated to semantic-analysis system of the compilerRelated to semantic-analysis system of the compiler

Status: Open.

Bug

#1668 In nim-works/nimskull;

· alaviss opened on Dec 4, 2025

defining a variable of type <code>typedesc[T]</code> crashes cgen

bugSomething isn't workingSomething isn't working

compiler/semRelated to semantic-analysis system of the compilerRelated to semantic-analysis system of the compiler

Status: Open.

Bug

#1667 In nim-works/nimskull;

· alaviss opened on Dec 3, 2025

type expression is not fully expanded in typed AST

bugSomething isn't workingSomething isn't working

compiler/semRelated to semantic-analysis system of the compilerRelated to semantic-analysis system of the compiler

Status: Open.

Bug

#1666 In nim-works/nimskull;

· alaviss opened on Dec 3, 2025

Write documentations for CGIR for developers

compiler/backendRelated to backend system of the compilerRelated to backend system of the compiler

documentationImprovements or additions to documentationImprovements or additions to documentation

good first issueEasy-to-start-with issue requiring no in-depth knowledge or complex implementation.Easy-to-start-with issue requiring no in-depth knowledge or complex implementation.

Status: Open.

Task

#1663 In nim-works/nimskull;

· alaviss opened on Nov 29, 2025

It is not possible to cast from bigger objects to smaller ones

bugSomething isn't workingSomething isn't working

compiler/semRelated to semantic-analysis system of the compilerRelated to semantic-analysis system of the compiler

Status: Open.

Bug

#1660 In nim-works/nimskull;

· alaviss opened on Nov 29, 2025

math: nan-related signops vary with C compiler.

bugSomething isn't workingSomething isn't working

Status: Open.

#1624 In nim-works/nimskull;

· Luyten-Orion opened on Sep 27, 2025

template substitution leads to compiler crash (ident called on symbol node)

bugSomething isn't workingSomething isn't working

compiler/semRelated to semantic-analysis system of the compilerRelated to semantic-analysis system of the compiler

Status: Open.

Bug

#1619 In nim-works/nimskull;

· Luyten-Orion opened on Sep 19, 2025

fields iterators causes incorrect lineinfo placement on <code>cannot evaluate at compile time</code> errors

bugSomething isn't workingSomething isn't working

compiler/semRelated to semantic-analysis system of the compilerRelated to semantic-analysis system of the compiler

good first issueEasy-to-start-with issue requiring no in-depth knowledge or complex implementation.Easy-to-start-with issue requiring no in-depth knowledge or complex implementation.

Status: Open.

Bug

#1617 In nim-works/nimskull;

· Luyten-Orion opened on Sep 16, 2025

indexing over a statically declared string with a statically declared int raises <code>FieldDefect</code>.

bugSomething isn't workingSomething isn't working

compiler/msgsCompiler output and diagnostic subsystem: error and warnig reporting, information, debuggingCompiler output and diagnostic subsystem: error and warnig reporting, information, debugging

good first issueEasy-to-start-with issue requiring no in-depth knowledge or complex implementation.Easy-to-start-with issue requiring no in-depth knowledge or complex implementation.

Status: Open.

Bug

#1604 In nim-works/nimskull;

· Luyten-Orion opened on Aug 29, 2025

Converting derived type to distinct base type crashes compiler

bugSomething isn't workingSomething isn't working

compilerGeneral compiler tagGeneral compiler tag

compiler/semRelated to semantic-analysis system of the compilerRelated to semantic-analysis system of the compiler

Status: Open.

Bug

#1598 In nim-works/nimskull;

· bptato opened on Aug 26, 2025

Restore <code>sink</code> annotations in the standard library where sensible

stdlibStandard libraryStandard library

Status: Open.

Task

#1597 In nim-works/nimskull;

· zerbina opened on Aug 26, 2025