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e942da94b5b52fa7e09b133d52125037ba69c7b7
Nim/compiler
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ringabout e942da94b5 fixes #22122; raise effects for complex expressions (#25845) 
fixes #22122

The root cause is in the effect tracker: raise was recording the whole
conditional expression as one exception source, so semantic checking
only saw the widened common base type instead of the concrete exception
classes from each branch.
2026-06-08 22:59:16 +02:00
..
ic
IC: massive cleanup, NIF26 support, docs about its inner workings (#25427)
2026-01-16 12:19:17 +01:00
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
fixes global tuple unpacking for nim ic (#25624)
2026-03-23 09:35:30 +01:00
ast.nim
fixes #25851; ensure --panics:on does not skip nimErr_ check after closure calls (#25855)
2026-06-01 16:21:37 +02:00
astalgo.nim
IC: progress (#25314)
2025-12-01 22:59:12 +01:00
astdef.nim
fixes compiling newSeq call with nim ic generates compile error (#25603)
2026-03-15 07:57:16 +01:00
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
SSO: better switch to enable it (#25772)
2026-04-27 18:00:29 +02:00
ccgexprs.nim
fixes #18238; Nested object construction can zero same memory multiple times for --mm:refc (#25834)
2026-06-08 08:54:15 +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
fixes ReraiseDefect after typeless except: + finally: (cpp backend) (#25777)
2026-05-29 07:53:37 +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
SSO for strings (#25593)
2026-04-02 07:19:43 +02:00
ccgutils.nim
implements internal sink copy (#24747)
2025-03-10 11:20:44 +01:00
cgen.nim
SSO: better switch to enable it (#25772)
2026-04-27 18:00:29 +02:00
cgendata.nim
fixes finally being skipped when except T as e re-raises (cpp backend) (#25775)
2026-05-05 21:27:33 +08:00
cgmeth.nim
IC: progress (#25344)
2025-12-11 18:22:38 +01:00
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
commands.nim
fix: implicit imports drop std/ prefix (#25780)
2026-05-08 06:50:13 +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
debuginfo.nim
…
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: use the newer nif27 format (#25792)
2026-05-06 08:41:59 +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
massive refactoring for IC (#25282)
2025-11-13 21:31:24 +01:00
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
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
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
fixes #25637; nim ic with destructors (#25723)
2026-04-10 15:29:20 +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
SSO: better switch to enable it (#25772)
2026-04-27 18:00:29 +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
fixes #25693; continues the bugfix story (#25876)
2026-06-08 22:54:03 +02:00
lowerings.nim
IC: progress (#25344)
2025-12-11 18:22:38 +01:00
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
IC: massive cleanup, NIF26 support, docs about its inner workings (#25427)
2026-01-16 12:19:17 +01:00
mangleutils.nim
apply the new mangle algorithm to JS backend for parameters and procs (#23476)
2024-04-05 08:54:48 +02:00
modulegraphs.nim
implements EnumToStrEntry for nim ic (#25614)
2026-03-19 07:35:24 +01:00
modulepaths.nim
IC: progress (#25420)
2026-01-09 13:10:04 +01:00
modules.nim
massive refactoring for IC (#25282)
2025-11-13 21:31:24 +01:00
msgs.nim
Yrc typos and omissions (#25500)
2026-02-10 13:21:35 +01:00
nifbackend.nim
fixes #25635; registers module suffix correctly (#25645)
2026-03-24 21:34:46 +08:00
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
SSO: better switch to enable it (#25772)
2026-04-27 18:00:29 +02:00
nimblecmd.nim
fixes yet another strictdefs bug (#23069)
2023-12-15 08:13:25 +01:00
nimconf.nim
add srcDir variable to nim.cfg (#24919)
2025-10-23 09:05:05 +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
fixes #25693; continues the bugfix story (#25876)
2026-06-08 22:54:03 +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
parser: concept of (#25878)
2026-06-08 11:32:04 +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: progress (#25453)
2026-01-24 06:07:41 +01:00
pipelineutils.nim
replaces implicit passes array registed at runtime with explicit function calls; simplify compilation pipeline (#21444)
2023-03-03 07:36:38 +01:00
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
fixes #25693; continues the bugfix story (#25876)
2026-06-08 22:54:03 +02:00
semcall.nim
fixes #25290; tempalte overload scope dupe (#25308)
2026-04-09 20:44:35 +02:00
semdata.nim
fixes #25693; continues the bugfix story (#25876)
2026-06-08 22:54:03 +02:00
semexprs.nim
fixes lent tuple codegen error (#25782)
2026-05-06 08:42:36 +02:00
semfields.nim
IC: progress (#25344)
2025-12-11 18:22:38 +01:00
semfold.nim
Do not directly cast int128 to uint64 in semfold (#25396)
2025-12-30 23:09:01 +01:00
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
Refactoring #25302; don't store procedure's parameter types to PType.sonsImpl (#25351)
2025-12-26 21:59:38 +01:00
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 #22122; raise effects for complex expressions (#25845)
2026-06-08 22:59:16 +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
fixes #25784; Object default field initialized with an object constructor (#25785)
2026-05-05 21:05:17 +02:00
semtypinst.nim
fixes #25509; removes void fields from a named tuple type (#25515)
2026-02-24 10:47:14 +01:00
sighashes.nim
fixes #25475; incompatible types errors for array types with different index types (#25505)
2026-02-13 22:59:21 +01:00
sigmatch.nim
fixes #25693; continues the bugfix story (#25876)
2026-06-08 22:54:03 +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
fixes #25620; typekey skips incorrectly the base type of seqs etc. types for nim ic (#25621)
2026-03-20 07:07:26 +01:00
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
Yrc typos and omissions (#25500)
2026-02-10 13:21:35 +01:00
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
stop a temp register from being freed if addressed for lent (#25861)
2026-06-04 13:29:48 +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
fixes #24941; missing < (less than), cmp for cstring (#24942)
2025-05-10 08:26:21 +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.