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8e0dd4bfb2feeb8d1adec78f8e00acf1dd6761d5
Nim/compiler
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Araq 8e0dd4bfb2 IC: emit-everywhere RTTI in the per-module cg stage (Phase 2b) 
genTypeInfoV2 has its own owner-routing: when the type's owner module is open
for codegen it pushes the RTTI definition into that module and emits only an
extern here. Under per-module cg every module except the target is loaded but
unwritten, so the definition landed in a discarded backend module and the
demanding module kept just an extern -> the RTTI symbol (e.g. an exception
type's NTIv2) was defined nowhere and failed to link.

Gate the owner-routing (and the reuse-cache shortcut) off when
icBackendStage == "cg" so RTTI is emit-everywhere like procs and consts: every
demanding module emits the 'd' definition and the merge stage dedups it to one
owner.

Validated end-to-end on a generic+exception program (shared box[int] instance
across two sibling modules, a raised/caught custom exception, seq+string
hooks): the per-module pipeline now links with no undefined/duplicate symbols
and prints the same output as the whole-program build. Whole-program path
unchanged (gate is per-module-cg only); koch ic thallo/tmiscs green.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
2026-06-13 22:59:12 +02:00
..
ic
IC: progress
2026-06-10 12:04:42 +02:00
plugins
massive refactoring for IC (#25282)
2025-11-13 21:31:24 +01:00
aliasanalysis.nim
use strictdefs for compiler (#22365)
2023-08-06 14:26:21 +02:00
aliases.nim
type refactor: part 4 (#23077)
2023-12-15 10:20:57 +01:00
ast2nif.nim
IC: cleaner design, updated design document
2026-06-13 13:55:58 +02:00
ast.nim
IC: progress, hacks included
2026-06-13 10:08:46 +02:00
astalgo.nim
IC: progress (#25314)
2025-12-01 22:59:12 +01:00
astdef.nim
refactoring
2026-06-11 10:36:04 +02:00
astmsgs.nim
fixes #23494; Wrong type in object construction error message (#23504)
2024-04-16 12:46:59 +02:00
astyaml.nim
refactor: The popular 'r' field is now named 'snippet' (#23829)
2024-07-12 15:23:09 +02:00
bitsets.nim
NIR: Nim intermediate representation (#22777)
2023-10-11 17:44:14 +02:00
btrees.nim
Yrc typos and omissions (#25500)
2026-02-10 13:21:35 +01:00
cbuilderbase.nim
fixes nightlies failures (#24456)
2024-11-19 08:51:54 +01:00
cbuilderdecls.nim
fixes #25405; initialization for objects with opaque importc fields (#25406)
2026-01-05 15:21:59 +01:00
cbuilderexprs.nim
cbuilder: use constants for type names, some cleanups (#24438)
2024-11-18 17:34:37 +01:00
cbuilderstmts.nim
cbuilder: use constants for type names, some cleanups (#24438)
2024-11-18 17:34:37 +01:00
ccgcalls.nim
IC: progress, hacks included
2026-06-13 10:08:46 +02:00
ccgexprs.nim
IC: data ownership for the per-module backend (Phase 2b, B4)
2026-06-13 22:49:13 +02:00
ccgliterals.nim
SSO: better switch to enable it (#25772)
2026-04-27 18:00:29 +02:00
ccgmerge_unused.nim
removed unused sections in codegen (#20976)
2022-11-30 21:51:13 +01:00
ccgreset.nim
fixes #25205 #14873; resets importc obj with nimZeroMem in specializeResetT for refc (#25207)
2025-10-06 21:55:31 +02:00
ccgstmts.nim
IC: beginnings of the backend porting
2026-06-11 21:51:59 +02:00
ccgthreadvars.nim
cbuilder: use constants for type names, some cleanups (#24438)
2024-11-18 17:34:37 +01:00
ccgtrav.nim
cbuilder: use constants for type names, some cleanups (#24438)
2024-11-18 17:34:37 +01:00
ccgtypes.nim
IC: emit-everywhere RTTI in the per-module cg stage (Phase 2b)
2026-06-13 22:59:12 +02:00
ccgutils.nim
IC: module suffix is now the trailing token of mangled C names
2026-06-13 22:09:16 +02:00
cgen.nim
IC: NimMain init orchestration for the per-module backend (Phase 2b)
2026-06-13 22:52:01 +02:00
cgendata.nim
IC: Iface-gate the nifc step
2026-06-12 12:47:06 +02:00
cgmeth.nim
progress
2026-06-12 16:27:41 +02:00
closureiters.nim
fixes #25596 (#25609)
2026-03-16 16:56:18 +01:00
cmdlinehelper.nim
fixes #23429; rework --verbosity with warnings/hints (#23441)
2024-03-28 11:04:12 +01:00
cnif.nim
IC: data ownership for the per-module backend (Phase 2b, B4)
2026-06-13 22:49:13 +02:00
commands.nim
IC: add inert --icBackendStage/--icBackendModule switches (Phase 2b scaffold)
2026-06-13 21:03:55 +02:00
compiler.nimble
Create compiler and nimsuggest packages (#22118)
2023-06-18 16:06:14 +02:00
concepts.nim
reduce imports (#25398)
2025-12-31 13:33:57 +01:00
condsyms.nim
fixes #24706; Warn on implicit range downsizing (#25451)
2026-02-01 17:06:33 +01:00
dce.nim
make the backend incremental too
2026-06-12 06:05:31 +02:00
debuginfo.nim
happy new year
2017-01-07 22:35:09 +01:00
debugutils.nim
Extend and document compiler debugging utilities (#19841)
2022-06-10 20:40:08 +02:00
depends.nim
prepare for the enforcement of std prefix (#22873)
2023-10-29 14:48:11 +01:00
deps.nim
IC: split the build file into frontend and backend (Phase 2a)
2026-06-13 20:50:11 +02:00
dfa.nim
Yrc typos and omissions (#25500)
2026-02-10 13:21:35 +01:00
docgen2.nim
use strictdefs for compiler (#22365)
2023-08-06 14:26:21 +02:00
docgen.nim
fixes #25670; docgen: cmpDecimalsIgnoreCase max() used wrong index for b (#25669)
2026-03-27 10:20:10 +01:00
enumtostr.nim
IC: Iface-gate the nifc step
2026-06-12 12:47:06 +02:00
errorhandling.nim
IC: progress and refactorings (#22961)
2023-11-20 21:12:13 +01:00
evalffi.nim
IC: progress (#25344)
2025-12-11 18:22:38 +01:00
evaltempl.nim
IC: progress (#25344)
2025-12-11 18:22:38 +01:00
expanddefaults.nim
remove fauxMatch for tyFromExpr, remove tyProxy and tyUnknown aliases (#24018)
2024-08-28 20:46:36 +02:00
extccomp.nim
Create Mac app bundle for GUI apps on macOS when --app:gui is used (#25042)
2025-07-14 23:14:06 +02:00
filter_tmpl.nim
prepare for the enforcement of std prefix (#22873)
2023-10-29 14:48:11 +01:00
filters.nim
prepare for the enforcement of std prefix (#22873)
2023-10-29 14:48:11 +01:00
gorgeimpl.nim
prepare for the enforcement of std prefix (#22873)
2023-10-29 14:48:11 +01:00
guards.nim
fixes #22791; ProveField warning with nested case object (#25774)
2026-05-27 23:29:27 +02:00
hlo.nim
Fixes #25304 proper test for hlo recursion limit (#25305)
2025-11-21 21:26:43 +01:00
icconfig.nim
missing file
2026-06-13 10:16:29 +02:00
idents.nim
prepare for the enforcement of std prefix (#22873)
2023-10-29 14:48:11 +01:00
importer.nim
fix: implicit imports drop std/ prefix (#25780)
2026-05-08 06:50:13 +02:00
index.nim
walkDirRecFilter, update doc CI filter, compiler/index.nim for docs + various other fixes (#14501)
2020-06-01 19:21:41 +02:00
injectdestructors.nim
fixes #25850 (#25875)
2026-06-07 19:55:56 +02:00
inliner.nim
IC progress (#25283)
2025-11-25 12:49:23 +01:00
installer.ini
fixes nightlies due to UB errors; increase maxCPU hard limits (#25219)
2025-10-13 13:47:06 +02:00
int128.nim
SSO for strings (#25593)
2026-04-02 07:19:43 +02:00
isolation_check.nim
docs: fix typos (#24573)
2024-12-27 19:42:18 +01:00
itemids.nim
refactoring
2026-06-11 10:36:04 +02:00
jsgen.nim
fixes #25751; JS backend crashes when returning Option[T] with custom =destroy (#25752)
2026-04-18 09:40:55 +02:00
jstypes.nim
fixes #25043: js tyUserTypeClass internal error (#25044)
2025-07-14 23:15:44 +02:00
lambdalifting.nim
IC: progress, hacks included
2026-06-13 10:08:46 +02:00
layeredtable.nim
SSO for strings (#25593)
2026-04-02 07:19:43 +02:00
layouter.nim
nimpretty: check the rendered AST for wrong output (#23057)
2023-12-13 10:39:10 +01:00
lexer.nim
fixes #25821; unary minus off by one mistake [backport] (#25823)
2026-05-18 07:55:33 +02:00
liftdestructors.nim
IC/refc: no-op value hooks for tyUncheckedArray
2026-06-13 20:21:30 +02:00
liftlocals.nim
IC: progress (#25344)
2025-12-11 18:22:38 +01:00
lineinfos.nim
fixes-25655; defining >= operator generates compile error (#25787)
2026-06-08 09:00:00 +02:00
linter.nim
fixes #19831; add --styleCheck:warning (#25456)
2026-01-23 22:50:00 +01:00
llstream.nim
SSO for strings (#25593)
2026-04-02 07:19:43 +02:00
lookups.nim
IC: progress, hacks included
2026-06-13 10:08:46 +02:00
lowerings.nim
refactoring
2026-06-11 10:36:04 +02:00
macrocacheimpl.nim
IC: next steps (#16632)
2021-01-12 09:36:51 +01:00
magicsys.nim
fix compiler crash with uncheckedAssign and range/distinct discrims [backport] (#25585)
2026-03-07 07:39:57 +01:00
main.nim
progress
2026-06-12 16:27:41 +02:00
mangleutils.nim
IC: module suffix is now the trailing token of mangled C names
2026-06-13 22:09:16 +02:00
modulegraphs.nim
IC: progress, hacks included
2026-06-13 10:08:46 +02:00
modulepaths.nim
IC: progress (#25420)
2026-01-09 13:10:04 +01:00
modules.nim
refactoring
2026-06-11 10:36:04 +02:00
msgs.nim
IC: progress
2026-06-10 12:04:42 +02:00
nifbackend.nim
IC: NimMain init orchestration for the per-module backend (Phase 2b)
2026-06-13 22:52:01 +02:00
nifgen.nim
fixes #25488; Strings can be compared against nil (#25489)
2026-02-07 20:46:50 +01:00
nilcheck.nim
fixes-25655; defining >= operator generates compile error (#25787)
2026-06-08 09:00:00 +02:00
nim.cfg
IC: added support for conditional dependencies (#25770)
2026-04-28 18:48:41 +02:00
nim.nim
IC: progress
2026-06-10 12:04:42 +02:00
nimblecmd.nim
fixes yet another strictdefs bug (#23069)
2023-12-15 08:13:25 +01:00
nimconf.nim
IC: progress, hacks included
2026-06-13 10:08:46 +02:00
nimeval.nim
massive refactoring for IC (#25282)
2025-11-13 21:31:24 +01:00
nimlexbase.nim
prepare for the enforcement of std prefix (#22873)
2023-10-29 14:48:11 +01:00
nimpaths.nim
prepare for the enforcement of std prefix (#22873)
2023-10-29 14:48:11 +01:00
nimsets.nim
IC: progress (#25344)
2025-12-11 18:22:38 +01:00
nodejs.nim
prepare for the enforcement of std prefix (#22873)
2023-10-29 14:48:11 +01:00
nodekinds.nim
opensym as node kind + fixed experimental switch (#23892)
2024-08-12 15:33:26 +02:00
nversion.nim
warn on set types bigger than max size, default to 0..255 for int literals (#21659)
2023-04-17 20:55:22 +02:00
optimizer.nim
fixes #24806; don't elide wasMoved when syms are used in blocks (#24831)
2025-04-03 12:54:00 +02:00
options.nim
IC: data ownership for the per-module backend (Phase 2b, B4)
2026-06-13 22:49:13 +02:00
packagehandling.nim
use strictdefs for compiler (#22365)
2023-08-06 14:26:21 +02:00
packages.nim
massive refactoring for IC (#25282)
2025-11-13 21:31:24 +01:00
parampatterns.nim
fixes #23949; cannot return lent expression from conditionals like case (#25190)
2025-09-24 06:29:57 +02:00
parser.nim
progress
2026-06-09 16:12:38 +02:00
passaux.nim
test removing dollar for objects out of system (#20242)
2022-08-24 09:44:16 +02:00
passes.nim
IC: massive cleanup, NIF26 support, docs about its inner workings (#25427)
2026-01-16 12:19:17 +01:00
pathutils.nim
prepare for the enforcement of std prefix (#22873)
2023-10-29 14:48:11 +01:00
patterns.nim
clean up opensym encounters in compiler (#24866)
2025-04-12 08:39:11 +02:00
pipelines.nim
IC: cleaner design, updated design document
2026-06-13 13:55:58 +02:00
pipelineutils.nim
make the backend incremental too
2026-06-12 06:05:31 +02:00
platform.nim
fixes nightlies due to UB errors; increase maxCPU hard limits (#25219)
2025-10-13 13:47:06 +02:00
pluginsupport.nim
refactoring: fewer global variables
2018-05-27 19:19:12 +02:00
pragmas.nim
Yrc typos and omissions (#25500)
2026-02-10 13:21:35 +01:00
prefixmatches.nim
prepare for the enforcement of std prefix (#22873)
2023-10-29 14:48:11 +01:00
procfind.nim
fixes addr/hiddenAddr in strictdefs (#23477)
2024-04-10 14:41:16 +02:00
pushpoppragmas.nim
fixes push warnings for sempass2 (#23603)
2024-09-03 09:19:52 +02:00
readme.md
clean up the documentation (#22196)
2023-07-02 22:36:05 +02:00
renderer.nim
fixes whitespace related endless loop in renderer.nim (#25750)
2026-04-16 09:44:58 +02:00
renderverbatim.nim
prepare for the enforcement of std prefix (#22873)
2023-10-29 14:48:11 +01:00
reorder.nim
clean up opensym encounters in compiler (#24866)
2025-04-12 08:39:11 +02:00
rodutils.nim
NIR: C codegen additions (#22914)
2023-11-06 18:33:28 +01:00
ropes.nim
replaces doAssert false with raiseAssert for unreachable branches, which works better with strictdefs (#22436)
2023-08-10 14:26:40 +02:00
saturate.nim
fix warnings for deprecated low and high (#15291)
2020-09-11 01:04:07 +02:00
scriptconfig.nim
YRC: threadsafe cycle collection for Nim (#25495)
2026-02-10 00:04:11 +01:00
sem.nim
Yrc typos and omissions (#25500)
2026-02-10 13:21:35 +01:00
semcall.nim
IC: progress
2026-06-10 12:04:42 +02:00
semdata.nim
IC: cleaner design, updated design document
2026-06-13 13:55:58 +02:00
semexprs.nim
IC: progress, hacks included
2026-06-13 10:08:46 +02:00
semfields.nim
IC: progress (#25344)
2025-12-11 18:22:38 +01:00
semfold.nim
IC: progress
2026-06-10 12:04:42 +02:00
semgnrc.nim
fixes #20811; Nested proc with inner being generic cannot access parameters of outer proc (#25837)
2026-06-08 08:55:37 +02:00
seminst.nim
IC: progress, hacks included
2026-06-13 10:08:46 +02:00
semmacrosanity.nim
IC: progress (#25344)
2025-12-11 18:22:38 +01:00
semmagic.nim
fix #25789; improve handling of distinct types (#25791)
2026-05-05 20:21:37 +02:00
semobjconstr.nim
fixes #25784; Object default field initialized with an object constructor (#25785)
2026-05-05 21:05:17 +02:00
semparallel.nim
IC: progress (#25344)
2025-12-11 18:22:38 +01:00
sempass2.nim
fixes #25857; don't treat typeof(result) as a use-before-init of result (#25858)
2026-06-02 07:07:44 +02:00
semstmts.nim
fixes-25655; defining >= operator generates compile error (#25787)
2026-06-08 09:00:00 +02:00
semstrictfuncs.nim
alternative, much simpler algorithm for strict func checking (#21066)
2022-12-11 16:58:50 +01:00
semtempl.nim
IC: massive cleanup, NIF26 support, docs about its inner workings (#25427)
2026-01-16 12:19:17 +01:00
semtypes.nim
IC: progress, hacks included
2026-06-13 10:08:46 +02:00
semtypinst.nim
IC: progress, hacks included
2026-06-13 10:08:46 +02:00
sighashes.nim
IC: progress
2026-06-10 12:04:42 +02:00
sigmatch.nim
IC: progress, hacks included
2026-06-13 10:08:46 +02:00
sinkparameter_inference.nim
Refactoring #25302; don't store procedure's parameter types to PType.sonsImpl (#25351)
2025-12-26 21:59:38 +01:00
sizealignoffsetimpl.nim
IC: progress (#25344)
2025-12-11 18:22:38 +01:00
sourcemap.nim
chore: fix some typos (#23412)
2024-03-16 08:35:18 +08:00
spawn.nim
fixes #25800; move now uses its declaration for overridden =wasMoved (#25809)
2026-05-21 13:42:38 +02:00
suggest.nim
refactoring for IC (#25395)
2025-12-29 13:52:22 +01:00
suggestsymdb.nim
NimSuggest: Fix for the inlay exception hints with generic procs (#23610)
2025-07-18 08:44:36 +02:00
syntaxes.nim
fixes addr/hiddenAddr in strictdefs (#23477)
2024-04-10 14:41:16 +02:00
tccgen.nim
replaces doAssert false with raiseAssert for unreachable branches, which works better with strictdefs (#22436)
2023-08-10 14:26:40 +02:00
transf.nim
fixes #25725; environment misses: s with iterator (#25828)
2026-06-08 08:53:10 +02:00
trees.nim
clean up opensym encounters in compiler (#24866)
2025-04-12 08:39:11 +02:00
treetab.nim
reduce imports (#25398)
2025-12-31 13:33:57 +01:00
typeallowed.nim
fixes #25677; fixes #25678; typeAllowedAux to improve flag handling (#25684)
2026-03-30 15:09:11 +02:00
typekeys.nim
IC: progress, hacks included
2026-06-13 10:08:46 +02:00
types.nim
fixes #25796; fixes procParamTypeRel to ensure backend type consistency (#25798)
2026-05-29 07:58:23 +02:00
typesrenderer.nim
prepare for the enforcement of std prefix (#22873)
2023-10-29 14:48:11 +01:00
varpartitions.nim
fixes #25595; cursor inference: a recorded mutation extends the variable's liveness (#25864)
2026-06-03 07:25:33 +02:00
vm.nim
IC: proper iface vs impl distinction, only rebuild dependents if the interface changed or if they depend on implementation (proc bodies)
2026-06-12 09:50:23 +02:00
vmconv.nim
Types: Refactorings; step 1 (#23055)
2023-12-12 16:54:50 +01:00
vmdef.nim
fixes #25254; fixes #10395; Invalid pred in when swallowed (#25385)
2025-12-25 00:04:18 +01:00
vmdeps.nim
Fix getTypeImpl not returning defaults (#25592)
2026-03-09 11:59:12 +01:00
vmgen.nim
IC: progress, hacks included
2026-06-13 10:08:46 +02:00
vmhooks.nim
replaces doAssert false with raiseAssert for unreachable branches, which works better with strictdefs (#22436)
2023-08-10 14:26:40 +02:00
vmmarshal.nim
fixes addr/hiddenAddr in strictdefs (#23477)
2024-04-10 14:41:16 +02:00
vmops.nim
progress
2026-06-09 16:12:38 +02:00
vmprofiler.nim
massive refactoring for IC (#25282)
2025-11-13 21:31:24 +01:00
vtables.nim
fix sortVTableDispatchers KeyError on re-entrant method registration via when isMainModule (#25856)
2026-06-05 16:37:00 +02:00
wordrecg.nim
Asm syntax pragma (#23119)
2023-12-25 07:12:54 +01:00

readme.md

Nim Compiler

  • This directory contains the Nim compiler written in Nim.
  • Note that this code has been translated from a bootstrapping version written in Pascal.
  • So the code is not a poster child of good Nim code.

See Internals of the Nim Compiler for more information.