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d0a86378724f024dca72dd1947847cba0176c501
Nim/compiler
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metagn d0a8637872 fix noreturn/implicit discard check logic (#23681) 
fixes #10440, fixes #13871, fixes #14665, fixes #19672, fixes #23677

The false positive in #23677 was caused by behavior in
`implicitlyDiscardable` where only the last node of `if`/`case`/`try`
etc expressions were considered, as in the final node of the final
branch (in this case `else`). To fix this we use the same iteration in
`implicitlyDiscardable` that we use in `endsInNoReturn`, with the
difference that for an `if`/`case`/`try` statement to be implicitly
discardable, all of its branches must be implicitly discardable.
`noreturn` calls are also considered implicitly discardable for this
reason, otherwise stuff like `if true: discardableCall() else: error()`
doesn't compile.

However `endsInNoReturn` also had bugs, one where `finally` was
considered in noreturn checking when it shouldn't, another where only
`nkIfStmt` was checked and not `nkIfExpr`, and the node given for the
error message was bad. So `endsInNoReturn` now skips over
`skipForDiscardable` which no longer contains
`nkIfStmt`/`nkCaseStmt`/`nkTryStmt`, stores the first encountered
returning node in a var parameter for the error message, and handles
`finally` and `nkIfExpr`.

Fixing #23677 already broke a line in `syncio` so some package code
might be affected.

(cherry picked from commit 42e8472ca6)
2024-08-31 13:45:23 +02:00
..
ic
opensym as node kind + fixed experimental switch (#23892)
2024-08-14 09:36:57 +02:00
plugins
refactoring in preparation for better, simpler name mangling that wor… (#21667)
2023-04-24 06:52:37 +02:00
aliasanalysis.nim
fixes a long-standing ARC bug (#20849)
2022-11-16 07:36:14 +01:00
aliases.nim
Implement Markdown definition lists (+ migration) (#20333)
2022-09-11 13:52:43 -04:00
ast.nim
Param match relax (#23033)
2024-08-31 12:47:25 +02:00
astalgo.nim
remove legacy code (#21134)
2022-12-26 13:20:05 +01:00
astmsgs.nim
fixes #23494; Wrong type in object construction error message (#23504)
2024-05-21 18:51:03 +02:00
backendpragmas.nim
fixes #19795; fixes #11852; fixes #19974; remove parsing pipeline, Nim now parses the whole module at one time (#21379)
2023-02-22 20:34:20 +01:00
bitsets.nim
move assertions out of system (#19599)
2022-03-23 20:34:53 +01:00
btrees.nim
adds an experimental mm:atomicArc switch (#21798)
2023-05-08 16:25:47 +02:00
ccgcalls.nim
[backport] fixes #23796; remove extra indirection for args in importc'ed functions in cpp (#23800)
2024-08-19 09:23:35 +02:00
ccgexprs.nim
[backport] fixes #23748; do not skip materializing temporaries for proc arguments (#23769)
2024-06-30 18:54:32 +02:00
ccgliterals.nim
store full definition AST for consts, fix noRewrite (#20115)
2022-09-28 15:05:01 +02:00
ccgmerge_unused.nim
removed unused sections in codegen (#20976)
2022-11-30 21:51:13 +01:00
ccgreset.nim
Fix reset code gen for range types (#22462, #23214) (#23215)
2024-01-19 09:18:23 +01:00
ccgstmts.nim
fixes #22246; generate __builtin_unreachable hints for case defaults (#22737)
2024-04-18 09:00:35 +02:00
ccgthreadvars.nim
no ropes WIP (#20433)
2022-09-27 10:57:47 +02:00
ccgtrav.nim
no ropes WIP (#20433)
2022-09-27 10:57:47 +02:00
ccgtypes.nim
fixes #9940; genericAssign does not take care of the importC variables in refc [backport] (#23761)
2024-06-26 18:50:37 +02:00
ccgutils.nim
fixes #23354; [backport] (#23685)
2024-06-07 15:34:34 +02:00
cgen.nim
fixes #23759; rework move for refc (#23764)
2024-06-29 12:38:52 +02:00
cgendata.nim
chore: fix some typos (#23412)
2024-05-21 14:52:29 +02:00
cgmeth.nim
fixes #22673; Cannot prove that result is initialized for a placehold… (#22915)
2024-04-18 10:30:34 +02:00
closureiters.nim
fixes #22297; return in the finally in the closure iterators (#22300)
2023-07-22 06:37:27 +02:00
cmdlinehelper.nim
fixes #23429; rework --verbosity with warnings/hints (#23441)
2024-05-21 14:52:30 +02:00
commands.nim
fixes #22706; turn "unknown hint" into a hint (#22755)
2024-04-18 09:00:46 +02:00
compiler.nimble
Create compiler and nimsuggest packages (#22118)
2023-06-18 16:06:14 +02:00
concepts.nim
chore: fix some typos (#23412)
2024-05-21 14:52:29 +02:00
condsyms.nim
fixes LineTooLong hints on old compilers (#22412)
2024-08-29 06:23:13 +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
gendepends now supports pkgs2 (#22277)
2023-07-14 12:40:24 +02:00
dfa.nim
fixes #22001 (#22177)
2023-06-27 22:42:48 +02:00
docgen2.nim
fix jsondoc not getting showNonExports flag (#22267)
2023-07-20 19:56:04 +02:00
docgen.nim
opensym as node kind + fixed experimental switch (#23892)
2024-08-14 09:36:57 +02:00
enumtostr.nim
refactoring in preparation for better, simpler name mangling that wor… (#21667)
2023-04-24 06:52:37 +02:00
errorhandling.nim
move assertions out of system (#19599)
2022-03-23 20:34:53 +01:00
evalffi.nim
fix #12122 (#21096)
2022-12-16 08:01:15 +01:00
evaltempl.nim
[backport] fixes #23711; C code contains backtick`gensym (#23716)
2024-06-24 08:28:29 +02:00
extccomp.nim
fixes #22246; generate __builtin_unreachable hints for case defaults (#22737)
2024-04-18 09:00:35 +02:00
filter_tmpl.nim
fix wrong name (rnimsyn => renderer; pnimsyn => parser; scanner => lexer) (#18895)
2021-09-25 13:22:00 +02:00
filters.nim
Cosmetic compiler cleanup (#12718)
2019-11-28 17:13:04 +01:00
gorgeimpl.nim
fixes #19863; move sha1, md5 to nimble packages for 2.0 (#21702)
2023-05-02 10:49:17 +02:00
guards.nim
fixes a strict case object problem that has been reported on the forum (#20614)
2022-10-21 22:46:32 +02:00
hlo.nim
Fix #22604: Make endsInNoReturn traverse the tree (#22612)
2023-09-18 12:12:59 +02:00
idents.nim
move assertions out of system (#19599)
2022-03-23 20:34:53 +01:00
importer.nim
Fix nimsuggest highlight for import statements (#23263)
2024-05-21 14:17:58 +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 #23440; fixes destruction for temporary object subclass (#23452)
2024-05-24 11:18:18 +02:00
installer.ini
Support NetBSD/aarch64 (#23616)
2024-05-23 13:55:23 +02:00
int128.nim
fixes #21393 and misc style changes (#21419)
2023-02-24 09:02:15 +01:00
isolation_check.nim
isolation spec update; WIP (#21843)
2023-05-14 16:58:28 +02:00
jsgen.nim
fixes openarray views default values in JS (#23607)
2024-05-24 15:57:15 +02:00
jstypes.nim
fixes #21439; Add tyOpenArray to genTypeInfo. (#21440)
2023-02-27 00:56:43 +01:00
lambdalifting.nim
fixes #23522; fixes pre-existing wrong type for iter in liftIterSym (#23538)
2024-05-22 09:28:21 +02:00
layouter.nim
some Token refactors (#21762)
2023-05-06 21:27:28 +02:00
lexer.nim
Remove LineTooLong (#21819)
2023-05-11 10:10:51 +02:00
liftdestructors.nim
fixes #23129; fixes generated hooks raise unlisted Exception, which never raise (#23195)
2024-07-09 20:09:41 +02:00
liftlocals.nim
fixes #11225; generic sandwich problems; [backport:1.2] (#17255)
2021-03-09 20:19:24 +01:00
lineinfos.nim
make expressions opt in to symchoices (#22716)
2024-08-14 09:08:41 +02:00
linter.nim
Fix some styleCheck bugs (#20095)
2023-05-06 19:10:13 +02:00
llstream.nim
move assertions out of system (#19599)
2022-03-23 20:34:53 +01:00
lookups.nim
ambiguous identifier resolution (#23123)
2024-08-31 12:53:43 +02:00
lowerings.nim
round out tuple unpacking assignment, support underscores (#22537)
2024-04-17 14:00:45 +02:00
macrocacheimpl.nim
IC: next steps (#16632)
2021-01-12 09:36:51 +01:00
magicsys.nim
make deprecated statement a no-op (#21836)
2023-05-12 10:05:38 +02:00
main.nim
compute checksum of nim files early in the pipelines (#23268)
2024-02-01 12:30:21 +01:00
modulegraphs.nim
compute checksum of nim files early in the pipelines (#23268)
2024-02-01 12:30:21 +01:00
modulepaths.nim
fixes #23167; take nkOpenSymChoice into consideration caused by templates [backport] (#23168)
2024-04-19 16:39:22 +02:00
modules.nim
compute checksum of nim files early in the pipelines (#23268)
2024-02-01 12:30:21 +01:00
msgs.nim
* fix for the debug line info code generation (#23488)
2024-05-21 18:51:04 +02:00
ndi.nim
move assertions out of system (#19599)
2022-03-23 20:34:53 +01:00
nilcheck.nim
refactoring in preparation for better, simpler name mangling that wor… (#21667)
2023-04-24 06:52:37 +02:00
nim.cfg
fixes #22286; enforce Non-var T destructors by nimPreviewNonVarDestructor (#22975)
2024-07-09 20:09:41 +02:00
nim.nim
clean up SOME pending/xxx/issue link comments (#21826)
2023-05-11 10:23:52 +02:00
nimblecmd.nim
fixes #19863; move sha1, md5 to nimble packages for 2.0 (#21702)
2023-05-02 10:49:17 +02:00
nimconf.nim
fix #8219; nim check/dump shouldn't run single nimscript project [backport: 1.6] (#19641)
2022-03-26 11:50:15 +01:00
nimeval.nim
reset macrocache after each script evaluation (#22195)
2023-06-30 23:03:25 +02:00
nimlexbase.nim
move assertions out of system (#19599)
2022-03-23 20:34:53 +01:00
nimpaths.nim
Implement Markdown definition lists (+ migration) (#20333)
2022-09-11 13:52:43 -04:00
nimsets.nim
move assertions out of system (#19599)
2022-03-23 20:34:53 +01:00
nodejs.nim
a better message if graphviz's dot/nodejs is not found in PATH (#21488)
2023-03-08 22:34:59 +01:00
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
improve wasMoved hooks; allow reset to use the overridden wasMoved hook (#21831)
2023-05-12 15:24:14 +02:00
options.nim
opensym as node kind + fixed experimental switch (#23892)
2024-08-14 09:36:57 +02:00
packagehandling.nim
Refactor and doc package handling, module name mangling (#19821)
2022-05-30 18:52:19 +02:00
packages.nim
refactoring in preparation for better, simpler name mangling that wor… (#21667)
2023-04-24 06:52:37 +02:00
parampatterns.nim
new move analyser2 (#20471)
2022-10-01 16:46:51 +02:00
parser.nim
Allow parseAll to parse statements separated by semicolons (#23088)
2024-04-19 16:35:07 +02:00
passaux.nim
test removing dollar for objects out of system (#20242)
2022-08-24 09:44:16 +02:00
passes.nim
fixes #19863; move sha1, md5 to nimble packages for 2.0 (#21702)
2023-05-02 10:49:17 +02:00
pathutils.nim
fixes #20139; hash types based on its path relative to its package path (#21274) [backport:1.6]
2023-03-02 09:16:28 +01:00
patterns.nim
fixes #20572 (#20585)
2022-10-17 23:48:51 +02:00
pipelines.nim
compute checksum of nim files early in the pipelines (#23268)
2024-02-01 12:30:21 +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
Add support for NuttX RTOS. (#21372)
2023-02-16 13:47:52 +01:00
pluginsupport.nim
refactoring: fewer global variables
2018-05-27 19:19:12 +02:00
pragmas.nim
fixes #23790; roll back instCounter properly in case of exceptions (#23802)
2024-07-08 11:17:49 +02:00
prefixmatches.nim
move tests under the compiler directory to testament (#16096)
2020-11-25 07:48:27 +01:00
procfind.nim
Fix forward declarations in shadow scope contexts (#15386)
2020-09-22 18:24:13 +02:00
readme.md
clean up the documentation (#22196)
2023-07-02 22:36:05 +02:00
renderer.nim
opensym as node kind + fixed experimental switch (#23892)
2024-08-14 09:36:57 +02:00
renderverbatim.nim
bootstrap the compiler with nimPreviewSlimSystem (#20176)
2022-08-09 16:32:29 +08:00
reorder.nim
fixes pragmas reorder (#21205)
2023-01-01 10:25:04 +01:00
rodutils.nim
move formatfloat out of system (#20195)
2022-08-24 13:38:30 +02:00
ropes.nim
simple micro-optimizations of ropes' runtime-formatting (#21962)
2023-05-30 13:41:56 +02:00
saturate.nim
fix warnings for deprecated low and high (#15291)
2020-09-11 01:04:07 +02:00
scriptconfig.nim
fixes #22212; Compile error when running a Nimscript that compares se… (#22213)
2023-07-03 14:15:44 +02:00
sem.nim
fix noreturn/implicit discard check logic (#23681)
2024-08-31 13:45:23 +02:00
semcall.nim
Revert "Look up generic parameters when found inside semOverloadedCall, fixin… (#23054)"
2024-04-23 18:01:24 +02:00
semdata.nim
make expressions opt in to symchoices (#22716)
2024-08-14 09:08:41 +02:00
semexprs.nim
remove bad type inference behavior for enum identifiers (#23588)
2024-08-31 13:44:58 +02:00
semfields.nim
refactoring in preparation for better, simpler name mangling that wor… (#21667)
2023-04-24 06:52:37 +02:00
semfold.nim
fix isNil folding for compile time closures (#22574)
2024-04-17 14:06:21 +02:00
semgnrc.nim
opensym as node kind + fixed experimental switch (#23892)
2024-08-14 09:36:57 +02:00
seminst.nim
make expressions opt in to symchoices (#22716)
2024-08-14 09:08:41 +02:00
semmacrosanity.nim
Unpack mSlice tupleconstr for static openarrays (#20615)
2022-10-22 06:37:23 +02:00
semmagic.nim
Revert "fixes #22923; fixes =dup issues (#23182)"
2024-04-23 06:57:09 +02:00
semobjconstr.nim
fixes #23494; Wrong type in object construction error message (#23504)
2024-05-21 18:51:03 +02:00
semparallel.nim
refactoring in preparation for better, simpler name mangling that wor… (#21667)
2023-04-24 06:52:37 +02:00
sempass2.nim
handle the weirdness of the type of the type keyword
2024-05-03 07:35:06 +02:00
semstmts.nim
fix noreturn/implicit discard check logic (#23681)
2024-08-31 13:45:23 +02:00
semstrictfuncs.nim
alternative, much simpler algorithm for strict func checking (#21066)
2022-12-11 16:58:50 +01:00
semtempl.nim
make routine implicitly gensym when other gensym symbol exists again (#23842)
2024-07-16 13:00:15 +02:00
semtypes.nim
opensym as node kind + fixed experimental switch (#23892)
2024-08-14 09:36:57 +02:00
semtypinst.nim
don't use previous bindings of auto for routine return types (#23207)
2024-04-27 20:00:30 +02:00
sighashes.nim
fixes #19863; move sha1, md5 to nimble packages for 2.0 (#21702)
2023-05-02 10:49:17 +02:00
sigmatch.nim
fix wrong subtype relation in tuples & infer some conversions (#23228)
2024-08-31 13:44:37 +02:00
sinkparameter_inference.nim
tiny refactoring related to sink parameter inference logic (#21064)
2022-12-10 15:42:22 +01:00
sizealignoffsetimpl.nim
Fix #22713: Make size unknown for tyForward (#22714)
2024-04-17 16:02:18 +02:00
sourcemap.nim
chore: fix some typos (#23412)
2024-05-21 14:52:29 +02:00
spawn.nim
fixes#23665; rework spawn with gcc 14 and fixes other tests (#23660)
2024-06-04 07:38:38 +02:00
suggest.nim
fixes #22409; don't check style for enumFieldSymChoice in the function (#23580)
2024-05-23 08:59:09 +02:00
syntaxes.nim
fixes #19662; Indent level errored for first line (#19718)
2022-04-25 12:00:23 +02:00
tccgen.nim
make implicit cstring conversions explicit (#19488)
2022-08-19 15:40:53 -04:00
transf.nim
fixes #19977; rework inlining of 'var openarray' iterators for C++ (#23258)
2024-07-02 06:06:13 +02:00
trees.nim
allow non-pragma special words as user pragmas (#22526)
2024-04-17 12:40:00 +02:00
treetab.nim
move assertions out of system (#19599)
2022-03-23 20:34:53 +01:00
typeallowed.nim
fixes #23419; internal error with void in generic array instantiation (#23550)
2024-05-23 08:56:53 +02:00
types.nim
Revert "Fix #22826: Don't skip generic instances in type comparison (#22828)"
2024-06-07 16:30:32 +02:00
typesrenderer.nim
proc typeclass accounts for iterator, call conventions + nil fix + document typeclass AST (#21629)
2023-04-11 09:23:41 +02:00
varpartitions.nim
fixes #22218; avoids cursor when copy is disabled (#23209)
2024-04-20 09:44:31 +02:00
vm.nim
fixes #23936; opcParseFloat accepts the wrong register as the first param [backport] (#23941)
2024-08-19 09:23:43 +02:00
vmconv.nim
fix #21045; getTime with vmopsDanger is broken; alternative to #21054 (#21056)
2022-12-10 18:57:19 +01:00
vmdef.nim
fix getNullValue for cstring in VM, make other VM code aware of nil cstring (#22527)
2023-09-18 12:12:58 +02:00
vmdeps.nim
make getType nodes of generic insts have full inst type (#22655)
2024-04-17 14:06:46 +02:00
vmgen.nim
fixes #13481; fixes #22708; disable using union objects in VM (#23362)
2024-04-22 10:22:28 +02:00
vmhooks.nim
Add divmod (#22102)
2023-06-17 05:42:05 +02:00
vmmarshal.nim
refactoring in preparation for better, simpler name mangling that wor… (#21667)
2023-04-24 06:52:37 +02:00
vmops.nim
Add divmod (#22102)
2023-06-17 05:42:05 +02:00
vmprofiler.nim
minor cleanup vmprofiler (#21783)
2023-05-04 15:44:46 +08:00
wordrecg.nim
allow non-pragma special words as user pragmas (#22526)
2024-04-17 12:40:00 +02:00

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.