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08d51e5c881e7d2d0c192832c3a235cb6a3be425
Nim/compiler
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ringabout 08d51e5c88 fixes #7179; Floats are not range checked (#25050) 
fixes #7179


```nim
var f = 751.0
echo f.int8
```

In this case, `int8(float)` yields different numbers for different
optimization levels, since float to int conversions are undefined
behaviors. In this PR, it mitigates this problem by conversions to same
size integers before converting to the final type: i.e.
`int8(int64(float))`, which has UB problems but is better than before
2025-07-18 21:30:50 +02:00
..
ic
make PNode.typ a private field (#24326)
2024-10-18 16:52:07 +02:00
plugins
Adds support for custom ASTs in the Nim parser (#23417)
2024-03-18 20:27:00 +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
ast.nim
fixes #25007; implements setLenUninit for refc (#25022)
2025-07-14 23:19:58 +02:00
astalgo.nim
bring back id table algorithm instead of std table [backport:2.2] (#24930)
2025-05-06 09:36:20 +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
use strictdefs for compiler (#22365)
2023-08-06 14:26:21 +02:00
cbuilderbase.nim
fixes nightlies failures (#24456)
2024-11-19 08:51:54 +01:00
cbuilderdecls.nim
fix #pragma pack generation regression in packed case objects (#24461)
2024-11-21 14:29:18 +03:00
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
conv needs to be picky about aliases and introduces a temp for addr conv (#24818)
2025-04-01 09:37:54 +02:00
ccgexprs.nim
fixes #25007; implements setLenUninit for refc (#25022)
2025-07-14 23:19:58 +02:00
ccgliterals.nim
cbuilder: use constants for type names, some cleanups (#24438)
2024-11-18 17:34:37 +01:00
ccgmerge_unused.nim
removed unused sections in codegen (#20976)
2022-11-30 21:51:13 +01:00
ccgreset.nim
cbuilder: use constants for type names, some cleanups (#24438)
2024-11-18 17:34:37 +01:00
ccgstmts.nim
fixes #24770; Thread local not registed as GC root when =destroy exists (#24776)
2025-03-12 17:29:30 +01:00
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
consider proc return type as weak reference in codegen (#24894)
2025-04-21 08:58:45 +02:00
ccgutils.nim
implements internal sink copy (#24747)
2025-03-10 11:20:44 +01:00
cgen.nim
fixes #24997; {.global.} variable in recursive function (#25016)
2025-06-27 10:17:16 +02:00
cgendata.nim
cbuilder: second half of cgen (#24432)
2024-11-14 16:28:13 +01:00
cgmeth.nim
make PNode.typ a private field (#24326)
2024-10-18 16:52:07 +02:00
closureiters.nim
Fixes #25038 (#25039)
2025-07-13 07:56:20 +02:00
cmdlinehelper.nim
fixes #23429; rework --verbosity with warnings/hints (#23441)
2024-03-28 11:04:12 +01:00
commands.nim
WIP: adds NIF code generator for interop with Nimony (#24966)
2025-05-26 15:42:19 +02:00
compiler.nimble
Create compiler and nimsuggest packages (#22118)
2023-06-18 16:06:14 +02:00
concepts.nim
Add tySet to concept matching (#24908)
2025-04-24 21:17:42 +02:00
condsyms.nim
fixes #25007; implements setLenUninit for refc (#25022)
2025-07-14 23:19:58 +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
dfa.nim
fixes lastRead uses the when nimvm branch (#24834)
2025-04-02 09:29:15 +02:00
docgen2.nim
use strictdefs for compiler (#22365)
2023-08-06 14:26:21 +02:00
docgen.nim
rework tags (#24944)
2025-05-11 06:40:46 +02:00
enumtostr.nim
account for invalid data in enum $ on arc/orc (#24886)
2025-04-18 05:32:49 +02:00
errorhandling.nim
IC: progress and refactorings (#22961)
2023-11-20 21:12:13 +01:00
evalffi.nim
make PNode.typ a private field (#24326)
2024-10-18 16:52:07 +02:00
evaltempl.nim
make PNode.typ a private field (#24326)
2024-10-18 16:52:07 +02:00
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
make PNode.typ a private field (#24326)
2024-10-18 16:52:07 +02:00
hlo.nim
Fix #22604: Make endsInNoReturn traverse the tree (#22612)
2023-09-01 06:41:39 +02:00
idents.nim
prepare for the enforcement of std prefix (#22873)
2023-10-29 14:48:11 +01:00
importer.nim
check if unused import warning is enabled before adding import to stack (#24554)
2024-12-20 22:09:03 +01:00
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 inefficient codegen for field return (#24874)
2025-07-18 21:30:32 +02:00
installer.ini
bundles nimony (#24968)
2025-05-27 11:45:28 +02:00
int128.nim
fixes yet another strictdefs bug (#23069)
2023-12-15 08:13:25 +01:00
isolation_check.nim
docs: fix typos (#24573)
2024-12-27 19:42:18 +01:00
jsgen.nim
fixes #25007; implements setLenUninit for refc (#25022)
2025-07-14 23:19:58 +02:00
jstypes.nim
fixes #25043: js tyUserTypeClass internal error (#25044)
2025-07-14 23:15:44 +02:00
lambdalifting.nim
don't traverse inner procs to lift locals in closure iters (#24876)
2025-04-15 19:29:46 +02:00
layeredtable.nim
bring back id table algorithm instead of std table [backport:2.2] (#24930)
2025-05-06 09:36:20 +02:00
layouter.nim
nimpretty: check the rendered AST for wrong output (#23057)
2023-12-13 10:39:10 +01:00
lexer.nim
fixes yet another strictdefs bug (#23069)
2023-12-15 08:13:25 +01:00
liftdestructors.nim
fixes #24719; improves order of destruction (#25060)
2025-07-18 23:02:16 +08:00
liftlocals.nim
make PNode.typ a private field (#24326)
2024-10-18 16:52:07 +02:00
lineinfos.nim
give hint for forward declarations with unknown raises effects (#24767)
2025-03-11 14:24:45 +01:00
linter.nim
make linter use lineinfo to check originating package (#24270)
2024-10-11 12:00:05 +02:00
llstream.nim
repl: support eof, define object with fields (#24784)
2025-03-25 07:41:17 +01:00
lookups.nim
fixes #23355; pop optionStack when exiting scopes (#24926)
2025-05-04 03:29:59 +02:00
lowerings.nim
make PNode.typ a private field (#24326)
2024-10-18 16:52:07 +02:00
macrocacheimpl.nim
IC: next steps (#16632)
2021-01-12 09:36:51 +01:00
magicsys.nim
fixes address of sink parameters (#24924)
2025-05-01 07:49:46 +02:00
main.nim
WIP: adds NIF code generator for interop with Nimony (#24966)
2025-05-26 15:42:19 +02:00
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
NimSuggest: Fix for the inlay exception hints with generic procs (#23610)
2025-07-18 08:44:36 +02:00
modulepaths.nim
make mangled module names shorter (#24976)
2025-06-05 08:34:52 +02:00
modules.nim
adds a getter/setter for owner (#24318)
2024-10-17 15:16:57 +02:00
msgs.nim
Fixes #23624 "nim check crash" (#23625)
2024-09-16 20:45:00 +02:00
nifgen.nim
fixes #25007; implements setLenUninit for refc (#25022)
2025-07-14 23:19:58 +02:00
nilcheck.nim
make PNode.typ a private field (#24326)
2024-10-18 16:52:07 +02:00
nim.cfg
adds nimPreviewCStringComparisons for cstring comparisons (#24946)
2025-05-14 21:31:53 +02:00
nim.nim
fixes #23848; The comand nim gendepend defaults to ORC (#23851)
2024-07-17 18:25:19 +02:00
nimblecmd.nim
fixes yet another strictdefs bug (#23069)
2023-12-15 08:13:25 +01:00
nimconf.nim
fixes yet another strictdefs bug (#23069)
2023-12-15 08:13:25 +01:00
nimeval.nim
fixes addr/hiddenAddr in strictdefs (#23477)
2024-04-10 14:41:16 +02:00
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
make PNode.typ a private field (#24326)
2024-10-18 16:52:07 +02:00
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
WIP: adds NIF code generator for interop with Nimony (#24966)
2025-05-26 15:42:19 +02:00
packagehandling.nim
use strictdefs for compiler (#22365)
2023-08-06 14:26:21 +02:00
packages.nim
make linter use lineinfo to check originating package (#24270)
2024-10-11 12:00:05 +02:00
parampatterns.nim
allow conversions between var types of range types and base types (#24037)
2024-09-03 09:18:38 +02:00
parser.nim
Improve error message for keywords as parameters (#25052)
2025-07-14 23:15:02 +02:00
passaux.nim
test removing dollar for objects out of system (#20242)
2022-08-24 09:44:16 +02:00
passes.nim
improve passes.nim (#24376)
2024-10-29 08:01:44 +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
WIP: adds NIF code generator for interop with Nimony (#24966)
2025-05-26 15:42:19 +02:00
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
prepare for the enforcement of std prefix (#22873)
2023-10-29 14:48:11 +01:00
pluginsupport.nim
refactoring: fewer global variables
2018-05-27 19:19:12 +02:00
pragmas.nim
allow setting arbitrary size for importc types (#24868)
2025-04-12 17:55:11 +02:00
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
clean up opensym encounters in compiler (#24866)
2025-04-12 08:39:11 +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
prepare for the enforcement of std prefix (#22873)
2023-10-29 14:48:11 +01:00
sem.nim
fixes =copy is transformed into nkFastAsgn and unify mAsgn handling (#24857)
2025-04-11 03:28:53 +02:00
semcall.nim
NimSuggest: Fix for the inlay exception hints with generic procs (#23610)
2025-07-18 08:44:36 +02:00
semdata.nim
fixes #25007; implements setLenUninit for refc (#25022)
2025-07-14 23:19:58 +02:00
semexprs.nim
don't set sym of generic param type value to generic param sym (#24995)
2025-06-13 00:03:02 +02:00
semfields.nim
fixes #24339; underscores used with fields and fieldPairs (#24341)
2025-02-27 16:48:15 +01:00
semfold.nim
folding const expressions with branching logic (#24689)
2025-03-11 10:01:32 +01:00
semgnrc.nim
don't warn/error symbols in semGenericStmt/templates (#24907)
2025-04-29 11:08:10 +02:00
seminst.nim
WIP: adds NIF code generator for interop with Nimony (#24966)
2025-05-26 15:42:19 +02:00
semmacrosanity.nim
handle ranges in annotateType for set constructors (#24737)
2025-02-28 17:23:19 +03:00
semmagic.nim
fixes #25007; implements setLenUninit for refc (#25022)
2025-07-14 23:19:58 +02:00
semobjconstr.nim
Make 'field is not accessible' and 'field initialized twice' errors point to the field inside the obj construction (#24557)
2024-12-22 14:25:36 +01:00
semparallel.nim
make PNode.typ a private field (#24326)
2024-10-18 16:52:07 +02:00
sempass2.nim
NimSuggest: Fix for the inlay exception hints with generic procs (#23610)
2025-07-18 08:44:36 +02:00
semstmts.nim
fixes #4594; disallow {.global.} uses local vars for basic expressions (#24961)
2025-05-23 16:16:57 +02:00
semstrictfuncs.nim
alternative, much simpler algorithm for strict func checking (#21066)
2022-12-11 16:58:50 +01:00
semtempl.nim
don't warn/error symbols in semGenericStmt/templates (#24907)
2025-04-29 11:08:10 +02:00
semtypes.nim
WIP: adds NIF code generator for interop with Nimony (#24966)
2025-05-26 15:42:19 +02:00
semtypinst.nim
bring back id table algorithm instead of std table [backport:2.2] (#24930)
2025-05-06 09:36:20 +02:00
sighashes.nim
remove nontoplevel type hack + consider symbol disamb in type hash (#23969)
2024-08-16 06:33:43 +02:00
sigmatch.nim
NimSuggest: Fix for the inlay exception hints with generic procs (#23610)
2025-07-18 08:44:36 +02:00
sinkparameter_inference.nim
IC: progress and refactorings (#22961)
2023-11-20 21:12:13 +01:00
sizealignoffsetimpl.nim
make PNode.typ a private field (#24326)
2024-10-18 16:52:07 +02:00
sourcemap.nim
chore: fix some typos (#23412)
2024-03-16 08:35:18 +08:00
spawn.nim
make PNode.typ a private field (#24326)
2024-10-18 16:52:07 +02:00
suggest.nim
NimSuggest: Fix for the inlay exception hints with generic procs (#23610)
2025-07-18 08:44:36 +02:00
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 #7179; Floats are not range checked (#25050)
2025-07-18 21:30:50 +02:00
trees.nim
clean up opensym encounters in compiler (#24866)
2025-04-12 08:39:11 +02:00
treetab.nim
prepare for the enforcement of std prefix (#22873)
2023-10-29 14:48:11 +01:00
typeallowed.nim
include new concepts in typeclasses, makes containsGenericType work (#24453)
2024-11-19 10:06:41 +01:00
types.nim
NimSuggest: Fix for the inlay exception hints with generic procs (#23610)
2025-07-18 08:44:36 +02:00
typesrenderer.nim
prepare for the enforcement of std prefix (#22873)
2023-10-29 14:48:11 +01:00
varpartitions.nim
fixes #23973; fixes #23974; Memory corruption with lent and ORC (#23981)
2024-08-20 11:57:47 +02:00
vm.nim
fixes #23564; hasCustomPragma skips alises types (#24994)
2025-06-27 10:18:12 +02:00
vmconv.nim
Types: Refactorings; step 1 (#23055)
2023-12-12 16:54:50 +01:00
vmdef.nim
track introduced locals in vmgen for eval check (#24674)
2025-02-14 20:54:17 +01:00
vmdeps.nim
fixes #23564; hasCustomPragma skips alises types (#24994)
2025-06-27 10:18:12 +02:00
vmgen.nim
fixes #25007; implements setLenUninit for refc (#25022)
2025-07-14 23:19:58 +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
prepare for the enforcement of std prefix (#22873)
2023-10-29 14:48:11 +01:00
vtables.nim
fixes #24476; remove proc type cast if they are same types for backends (#24480)
2024-11-27 17:36:57 +01:00
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.