No error on type mismatch in proc's default argument

[ZoomRmc]

Description

Type mismatch while setting the value for the default argument generates wrong code but no compilation error.

func foo[T](arr: openArray[T], idx: Natural = arr.high): int = # missed conversion: `Natural(arr.high)`
  if idx == 0:
    return 0
  foo(arr, idx - 1)

let arr = [0, 1, 2]

assert foo(arr) == 0

Nim Version

Nim Compiler Version 1.9.3 [Windows: amd64]
Compiled at 2023-06-15

Current Output

error: 'arr_p0Len_0' undeclared (first use in this function)
  203 |                 if (((arr_p0Len_0-1)) < ((NI)0) || ((arr_p0Len_0-1)) > ((NI)IL64(9223372036854775807))){ raiseRangeErrorI((arr_p0Len_0-1), ((NI)0), ((NI)IL64(9223372036854775807))); goto BeforeRet_;
      |                       ^~~~~~~~~~~
C:...\@mtest.nim.c:203:23: note: each undeclared identifier is reported only once for each function it appears in
Error: execution of an external compiler program 'gcc.exe -c  -w -fmax-errors=3 -mno-ms-bitfields   -IC:...\lib -Iy:\ -o C:\...\@mtest.nim.c.o C:\...\@mtest.nim.c' failed with exit code: 1

[juancarlospaco]

!nim c

func f(a: openArray[int], i: Natural = a.high): int = 0
discard f([0])
func x(a: seq[int], i: Natural = a.high): int = 0
discard x(@[0])

[github-actions]

@juancarlospaco (contributor)

devel :-1: FAIL

Output

Error: Command failed: nim c --run -d:strip -d:ssl -d:nimDisableCertificateValidation --forceBuild:on --colors:off --threads:off --verbosity:0 --hints:off --warnings:off --lineTrace:off  --nimcache:/home/runner/work/Nim/Nim --out:/home/runner/work/Nim/Nim/temp /home/runner/work/Nim/Nim/temp.nim
/home/runner/work/Nim/Nim/@mtemp.nim.c: In function ‘NimMainModule’:
/home/runner/work/Nim/Nim/@mtemp.nim.c:155:15: error: ‘a_p0Len_0’ undeclared (first use in this function)
  155 |         if (((a_p0Len_0-1)) < ((NI)0) || ((a_p0Len_0-1)) > ((NI)IL64(9223372036854775807))){ raiseRangeErrorI((a_p0Len_0-1), ((NI)0), ((NI)IL64(9223372036854775807))); goto BeforeRet_;
      |               ^~~~~~~~~
/home/runner/work/Nim/Nim/@mtemp.nim.c:155:15: note: each undeclared identifier is reported only once for each function it appears in
/home/runner/work/Nim/Nim/@mtemp.nim.c:163:16: error: ‘a_p0’ undeclared (first use in this function)
  163 |         T2_ = (a_p0.len-1);
      |                ^~~~
Error: execution of an external compiler program 'gcc -c  -w -fmax-errors=3   -I'/home/runner/.choosenim/toolchains/nim-#devel/lib' -I/home/runner/work/Nim/Nim -o /home/runner/work/Nim/Nim/@mtemp.nim.c.o /home/runner/work/Nim/Nim/@mtemp.nim.c' failed with exit code: 1

Stats

• Created 2023-07-06T20:29:00Z
• Started 2023-07-06T20:29:39
• Finished 2023-07-06T20:29:40
• Duration 1 minute
• Commands nim c --run -d:strip -d:ssl -d:nimDisableCertificateValidation --forceBuild:on --colors:off --threads:off --verbosity:0 --hints:off --warnings:off --lineTrace:off --nimcache:/home/runner/work/Nim/Nim --out:/home/runner/work/Nim/Nim/temp /home/runner/work/Nim/Nim/temp.nim

IR

#define NIM_INTBITS 64
#include "nimbase.h"
#undef LANGUAGE_C
#undef MIPSEB
#undef MIPSEL
#undef PPC
#undef R3000
#undef R4000
#undef i386
#undef linux
#undef mips
#undef near
#undef far
#undef powerpc
#undef unix
#define nimfr_(proc, file) \
  TFrame FR_; \
  FR_.procname = proc; FR_.filename = file; FR_.line = 0; FR_.len = 0; nimFrame(&FR_);
  #define nimfrs_(proc, file, slots, length) \
    struct {TFrame* prev;NCSTRING procname;NI line;NCSTRING filename;NI len;VarSlot s[slots];} FR_; \
    FR_.procname = proc; FR_.filename = file; FR_.line = 0; FR_.len = length; nimFrame((TFrame*)&FR_);
  #define nimln_(n) \
    FR_.line = n;
  #define nimlf_(n, file) \
    FR_.line = n; FR_.filename = file;
typedef struct tySequence__qwqHTkRvwhrRyENtudHQ7g tySequence__qwqHTkRvwhrRyENtudHQ7g;
typedef struct tySequence__qwqHTkRvwhrRyENtudHQ7g_Content tySequence__qwqHTkRvwhrRyENtudHQ7g_Content;
struct tySequence__qwqHTkRvwhrRyENtudHQ7g {
  NI len; tySequence__qwqHTkRvwhrRyENtudHQ7g_Content* p;
};
typedef NI tyArray__GAcaPw08Gj9cXYhAaMMr9cfw[1];
struct tySequence__qwqHTkRvwhrRyENtudHQ7g_Content { NI cap; NI data[SEQ_DECL_SIZE]; };
N_LIB_PRIVATE N_NIMCALL(NI, f__temp_u1)(NI* a_p0, NI a_p0Len_0, NI i_p1);
static N_INLINE(void, nimFrame)(TFrame* s_p0);
N_LIB_PRIVATE N_NOINLINE(void, callDepthLimitReached__system_u4483)(void);
static N_INLINE(void, popFrame)(void);
N_LIB_PRIVATE N_NOINLINE(void, raiseRangeErrorI)(NI64 i_p0, NI64 a_p1, NI64 b_p2);
N_LIB_PRIVATE N_NIMCALL(NI, x__temp_u8)(tySequence__qwqHTkRvwhrRyENtudHQ7g a_p0, NI i_p1);
N_LIB_PRIVATE N_NIMCALL(void*, newSeqPayload)(NI cap_p0, NI elemSize_p1, NI elemAlign_p2);
N_LIB_PRIVATE N_NIMCALL(void, eqdestroy___temp_u59)(tySequence__qwqHTkRvwhrRyENtudHQ7g dest_p0);
static N_INLINE(NIM_BOOL*, nimErrorFlag)(void);
N_LIB_PRIVATE N_NIMCALL(void, nimTestErrorFlag)(void);
N_LIB_PRIVATE N_NIMCALL(void, atmdotdotatsdotdotatsdotdotatsdotchoosenimatstoolchainsatsnimminusathdevelatslibatssystemdotnim_Init000)(void);
N_LIB_PRIVATE N_NIMCALL(void, NimMainModule)(void);
static NIM_CONST tyArray__GAcaPw08Gj9cXYhAaMMr9cfw TM__SRd76hP9cMfCzdUO857UhQQ_2 = {((NI)0)}
;
extern TFrame* framePtr__system_u3877;
extern NIM_BOOL nimInErrorMode__system_u4265;
static N_INLINE(void, nimFrame)(TFrame* s_p0) {
	{
		if (!(framePtr__system_u3877 == ((TFrame*) NIM_NIL))) goto LA3_;
		(*s_p0).calldepth = ((NI16)0);
	}
	goto LA1_;
LA3_: ;
	{
		(*s_p0).calldepth = (NI16)((*framePtr__system_u3877).calldepth + ((NI16)1));
	}
LA1_: ;
	(*s_p0).prev = framePtr__system_u3877;
	framePtr__system_u3877 = s_p0;
	{
		if (!((*s_p0).calldepth == ((NI16)2000))) goto LA8_;
		callDepthLimitReached__system_u4483();
	}
LA8_: ;
}
static N_INLINE(void, popFrame)(void) {
	framePtr__system_u3877 = (*framePtr__system_u3877).prev;
}
N_LIB_PRIVATE N_NIMCALL(NI, f__temp_u1)(NI* a_p0, NI a_p0Len_0, NI i_p1) {
	NI result;
	nimfr_("f", "/home/runner/work/Nim/Nim/temp.nim");
	result = (NI)0;
	result = ((NI)0);
	popFrame();
	return result;
}
N_LIB_PRIVATE N_NIMCALL(NI, x__temp_u8)(tySequence__qwqHTkRvwhrRyENtudHQ7g a_p0, NI i_p1) {
	NI result;
	nimfr_("x", "/home/runner/work/Nim/Nim/temp.nim");
	result = (NI)0;
	result = ((NI)0);
	popFrame();
	return result;
}
static N_INLINE(NIM_BOOL*, nimErrorFlag)(void) {
	NIM_BOOL* result;
	result = (NIM_BOOL*)0;
	result = (&nimInErrorMode__system_u4265);
	return result;
}
N_LIB_PRIVATE void PreMainInner(void) {
}
N_LIB_PRIVATE int cmdCount;
N_LIB_PRIVATE char** cmdLine;
N_LIB_PRIVATE char** gEnv;
N_LIB_PRIVATE void PreMain(void) {
#if 0
	void (*volatile inner)(void);
	inner = PreMainInner;
	atmdotdotatsdotdotatsdotdotatsdotchoosenimatstoolchainsatsnimminusathdevelatslibatssystemdotnim_Init000();
	(*inner)();
#else
	atmdotdotatsdotdotatsdotdotatsdotchoosenimatstoolchainsatsnimminusathdevelatslibatssystemdotnim_Init000();
	PreMainInner();
#endif
}
N_LIB_PRIVATE N_CDECL(void, NimMainInner)(void) {
	NimMainModule();
}
N_CDECL(void, NimMain)(void) {
#if 0
	void (*volatile inner)(void);
	PreMain();
	inner = NimMainInner;
	(*inner)();
#else
	PreMain();
	NimMainInner();
#endif
}
int main(int argc, char** args, char** env) {
	cmdLine = args;
	cmdCount = argc;
	gEnv = env;
	NimMain();
	return nim_program_result;
}
N_LIB_PRIVATE N_NIMCALL(void, NimMainModule)(void) {
{
	tySequence__qwqHTkRvwhrRyENtudHQ7g colontmpD_;
	NI T1_;
	NI T2_;
	NI T3_;
NIM_BOOL* nimErr_;
	nimfr_("temp", "/home/runner/work/Nim/Nim/temp.nim");
nimErr_ = nimErrorFlag();
	colontmpD_.len = 0; colontmpD_.p = NIM_NIL;
	if (((a_p0Len_0-1)) < ((NI)0) || ((a_p0Len_0-1)) > ((NI)IL64(9223372036854775807))){ raiseRangeErrorI((a_p0Len_0-1), ((NI)0), ((NI)IL64(9223372036854775807))); goto BeforeRet_;
	}
	T1_ = (NI)0;
	T1_ = f__temp_u1(TM__SRd76hP9cMfCzdUO857UhQQ_2, 1, ((NI) ((a_p0Len_0-1))));
	if (NIM_UNLIKELY(*nimErr_)) goto BeforeRet_;
	(void)(T1_);
	colontmpD_.len = 1; colontmpD_.p = (tySequence__qwqHTkRvwhrRyENtudHQ7g_Content*) newSeqPayload(1, sizeof(NI), NIM_ALIGNOF(NI));
	colontmpD_.p->data[0] = ((NI)0);
	T2_ = (a_p0.len-1);
	if ((T2_) < ((NI)0) || (T2_) > ((NI)IL64(9223372036854775807))){ raiseRangeErrorI(T2_, ((NI)0), ((NI)IL64(9223372036854775807))); goto BeforeRet_;
	}
	T3_ = (NI)0;
	T3_ = x__temp_u8(colontmpD_, ((NI) (T2_)));
	if (NIM_UNLIKELY(*nimErr_)) goto BeforeRet_;
	(void)(T3_);
	eqdestroy___temp_u59(colontmpD_);
	BeforeRet_: ;
	nimTestErrorFlag();
	popFrame();
}
}

AST

nnkStmtList.newTree(
  nnkFuncDef.newTree(
    newIdentNode("f"),
    newEmptyNode(),
    newEmptyNode(),
    nnkFormalParams.newTree(
      newIdentNode("int"),
      nnkIdentDefs.newTree(
        newIdentNode("a"),
        nnkBracketExpr.newTree(
          newIdentNode("openArray"),
          newIdentNode("int")
        ),
        newEmptyNode()
      ),
      nnkIdentDefs.newTree(
        newIdentNode("i"),
        newIdentNode("Natural"),
        nnkDotExpr.newTree(
          newIdentNode("a"),
          newIdentNode("high")
        )
      )
    ),
    newEmptyNode(),
    newEmptyNode(),
    nnkStmtList.newTree(
      newLit(0)
    )
  ),
  nnkDiscardStmt.newTree(
    nnkCall.newTree(
      newIdentNode("f"),
      nnkBracket.newTree(
        newLit(0)
      )
    )
  ),
  nnkFuncDef.newTree(
    newIdentNode("x"),
    newEmptyNode(),
    newEmptyNode(),
    nnkFormalParams.newTree(
      newIdentNode("int"),
      nnkIdentDefs.newTree(
        newIdentNode("a"),
        nnkBracketExpr.newTree(
          newIdentNode("seq"),
          newIdentNode("int")
        ),
        newEmptyNode()
      ),
      nnkIdentDefs.newTree(
        newIdentNode("i"),
        newIdentNode("Natural"),
        nnkDotExpr.newTree(
          newIdentNode("a"),
          newIdentNode("high")
        )
      )
    ),
    newEmptyNode(),
    newEmptyNode(),
    nnkStmtList.newTree(
      newLit(0)
    )
  ),
  nnkDiscardStmt.newTree(
    nnkCall.newTree(
      newIdentNode("x"),
      nnkPrefix.newTree(
        newIdentNode("@"),
        nnkBracket.newTree(
          newLit(0)
        )
      )
    )
  )
)

stable :-1: FAIL

Output

Error: Command failed: nim c --run -d:strip -d:ssl -d:nimDisableCertificateValidation --forceBuild:on --colors:off --threads:off --verbosity:0 --hints:off --warnings:off --lineTrace:off  --nimcache:/home/runner/work/Nim/Nim --out:/home/runner/work/Nim/Nim/temp /home/runner/work/Nim/Nim/temp.nim
/home/runner/work/Nim/Nim/@mtemp.nim.c: In function ‘NimMainModule’:
/home/runner/work/Nim/Nim/@mtemp.nim.c:183:15: error: ‘aLen_0’ undeclared (first use in this function)
  183 |         if (((aLen_0-1)) < ((NI) 0) || ((aLen_0-1)) > ((NI) IL64(9223372036854775807))){ raiseRangeErrorI((aLen_0-1), ((NI) 0), ((NI) IL64(9223372036854775807))); }
      |               ^~~~~~
/home/runner/work/Nim/Nim/@mtemp.nim.c:183:15: note: each undeclared identifier is reported only once for each function it appears in
/home/runner/work/Nim/Nim/@mtemp.nim.c:190:17: error: ‘a’ undeclared (first use in this function)
  190 |         T3_ = ((a ? a->Sup.len : 0)-1);
      |                 ^
Error: execution of an external compiler program 'gcc -c  -w -fmax-errors=3   -I/home/runner/.choosenim/toolchains/nim-1.6.14/lib -I/home/runner/work/Nim/Nim -o /home/runner/work/Nim/Nim/@mtemp.nim.c.o /home/runner/work/Nim/Nim/@mtemp.nim.c' failed with exit code: 1

Stats

• Created 2023-07-06T20:29:00Z
• Started 2023-07-06T20:29:41
• Finished 2023-07-06T20:29:41
• Duration 1 minute
• Commands nim c --run -d:strip -d:ssl -d:nimDisableCertificateValidation --forceBuild:on --colors:off --threads:off --verbosity:0 --hints:off --warnings:off --lineTrace:off --nimcache:/home/runner/work/Nim/Nim --out:/home/runner/work/Nim/Nim/temp /home/runner/work/Nim/Nim/temp.nim

IR

#define NIM_INTBITS 64
#include "nimbase.h"
#undef LANGUAGE_C
#undef MIPSEB
#undef MIPSEL
#undef PPC
#undef R3000
#undef R4000
#undef i386
#undef linux
#undef mips
#undef near
#undef far
#undef powerpc
#undef unix
  #  define nimfr_(proc, file) \
      TFrame FR_; \
      FR_.procname = proc; FR_.filename = file; FR_.line = 0; FR_.len = 0; nimFrame(&FR_);
  #  define nimfrs_(proc, file, slots, length) \
      struct {TFrame* prev;NCSTRING procname;NI line;NCSTRING filename; NI len; VarSlot s[slots];} FR_; \
      FR_.procname = proc; FR_.filename = file; FR_.line = 0; FR_.len = length; nimFrame((TFrame*)&FR_);
  #  define nimln_(n, file) \
      FR_.line = n; FR_.filename = file;
  typedef struct tySequence__qwqHTkRvwhrRyENtudHQ7g tySequence__qwqHTkRvwhrRyENtudHQ7g;
typedef struct TGenericSeq TGenericSeq;
typedef struct TNimType TNimType;
typedef struct TNimNode TNimNode;
typedef NI tyArray__GAcaPw08Gj9cXYhAaMMr9cfw[1];
struct TGenericSeq {
NI len;
NI reserved;
};
typedef NU8 tyEnum_TNimKind__3rC59cFdCULJbp2tHLSZMXQ;
typedef NU8 tySet_tyEnum_TNimTypeFlag__z9aX9aBGjlpDIC58y9bKcsmzA;
typedef N_NIMCALL_PTR(void, tyProc__ojoeKfW4VYIm36I9cpDTQIg) (void* p, NI op);
typedef N_NIMCALL_PTR(void*, tyProc__WSm2xU5ARYv9aAR4l0z9c9auQ) (void* p);
struct TNimType {
NI size;
NI align;
tyEnum_TNimKind__3rC59cFdCULJbp2tHLSZMXQ kind;
tySet_tyEnum_TNimTypeFlag__z9aX9aBGjlpDIC58y9bKcsmzA flags;
TNimType* base;
TNimNode* node;
void* finalizer;
tyProc__ojoeKfW4VYIm36I9cpDTQIg marker;
tyProc__WSm2xU5ARYv9aAR4l0z9c9auQ deepcopy;
};
typedef NU8 tyEnum_TNimNodeKind__XtzEyxd2A8uwMJcYYak9c7w;
struct TNimNode {
tyEnum_TNimNodeKind__XtzEyxd2A8uwMJcYYak9c7w kind;
NI offset;
TNimType* typ;
NCSTRING name;
NI len;
TNimNode** sons;
};
struct tySequence__qwqHTkRvwhrRyENtudHQ7g {
  TGenericSeq Sup;
  NI data[SEQ_DECL_SIZE];
};
N_LIB_PRIVATE N_NIMCALL(NI, f__temp_1)(NI* a, NI aLen_0, NI i);
static N_INLINE(void, nimFrame)(TFrame* s);
N_LIB_PRIVATE N_NOINLINE(void, callDepthLimitReached__system_2997)(void);
static N_INLINE(void, popFrame)(void);
N_LIB_PRIVATE N_NOINLINE(void, raiseRangeErrorI)(NI64 i, NI64 a, NI64 b);
N_LIB_PRIVATE N_NIMCALL(NI, x__temp_26)(tySequence__qwqHTkRvwhrRyENtudHQ7g* a, NI i);
N_LIB_PRIVATE N_NIMCALL(void*, newSeq)(TNimType* typ, NI len);
static N_NIMCALL(void, Marker_tySequence__qwqHTkRvwhrRyENtudHQ7g)(void* p, NI op);
static N_INLINE(void, initStackBottomWith)(void* locals);
N_LIB_PRIVATE N_NOINLINE(void, nimGC_setStackBottom)(void* theStackBottom);
N_LIB_PRIVATE N_NIMCALL(void, atmdotdotatsdotdotatsdotdotatsdotchoosenimatstoolchainsatsnimminus1dot6dot14atslibatssystemdotnim_DatInit000)(void);
N_LIB_PRIVATE N_NIMCALL(void, atmdotdotatsdotdotatsdotdotatsdotchoosenimatstoolchainsatsnimminus1dot6dot14atslibatssystemdotnim_Init000)(void);
N_LIB_PRIVATE N_NIMCALL(void, atmtempdotnim_DatInit000)(void);
N_LIB_PRIVATE N_NIMCALL(void, NimMainModule)(void);
static NIM_CONST tyArray__GAcaPw08Gj9cXYhAaMMr9cfw TM__SRd76hP9cMfCzdUO857UhQQ_2 = {((NI) 0)}
;
extern TNimType NTIint__rR5Bzr1D5krxoo1NcNyeMA_;
N_LIB_PRIVATE TNimType NTIseqLintT__qwqHTkRvwhrRyENtudHQ7g_;
extern TFrame* framePtr__system_2564;
extern TFrame* framePtr__system_2564;
extern TFrame* framePtr__system_2564;
extern TFrame* framePtr__system_2564;
extern TFrame* framePtr__system_2564;
extern TFrame* framePtr__system_2564;
static N_INLINE(void, nimFrame)(TFrame* s) {
	{
		if (!(framePtr__system_2564 == ((TFrame*) NIM_NIL))) goto LA3_;
		(*s).calldepth = ((NI16) 0);
	}
	goto LA1_;
	LA3_: ;
	{
		(*s).calldepth = (NI16)((*framePtr__system_2564).calldepth + ((NI16) 1));
	}
	LA1_: ;
	(*s).prev = framePtr__system_2564;
	framePtr__system_2564 = s;
	{
		if (!((*s).calldepth == ((NI16) 2000))) goto LA8_;
		callDepthLimitReached__system_2997();
	}
	LA8_: ;
}
static N_INLINE(void, popFrame)(void) {
	framePtr__system_2564 = (*framePtr__system_2564).prev;
}
N_LIB_PRIVATE N_NIMCALL(NI, f__temp_1)(NI* a, NI aLen_0, NI i) {
	NI result;
	nimfr_("f", "/home/runner/work/Nim/Nim/temp.nim");
	result = (NI)0;
	result = ((NI) 0);
	popFrame();
	return result;
}
N_LIB_PRIVATE N_NIMCALL(NI, x__temp_26)(tySequence__qwqHTkRvwhrRyENtudHQ7g* a, NI i) {
	NI result;
	nimfr_("x", "/home/runner/work/Nim/Nim/temp.nim");
	result = (NI)0;
	result = ((NI) 0);
	popFrame();
	return result;
}
static N_NIMCALL(void, Marker_tySequence__qwqHTkRvwhrRyENtudHQ7g)(void* p, NI op) {
	tySequence__qwqHTkRvwhrRyENtudHQ7g* a;
	NI T1_;
	a = (tySequence__qwqHTkRvwhrRyENtudHQ7g*)p;
	T1_ = (NI)0;
}
static N_INLINE(void, initStackBottomWith)(void* locals) {
	nimGC_setStackBottom(locals);
}
N_LIB_PRIVATE void PreMainInner(void) {
}
	N_LIB_PRIVATE int cmdCount;
	N_LIB_PRIVATE char** cmdLine;
	N_LIB_PRIVATE char** gEnv;
N_LIB_PRIVATE void PreMain(void) {
	void (*volatile inner)(void);
	inner = PreMainInner;
	atmdotdotatsdotdotatsdotdotatsdotchoosenimatstoolchainsatsnimminus1dot6dot14atslibatssystemdotnim_DatInit000();
	initStackBottomWith((void *)&inner);
	atmdotdotatsdotdotatsdotdotatsdotchoosenimatstoolchainsatsnimminus1dot6dot14atslibatssystemdotnim_Init000();
	atmtempdotnim_DatInit000();
	(*inner)();
}
N_LIB_PRIVATE N_CDECL(void, NimMainInner)(void) {
	NimMainModule();
}
N_CDECL(void, NimMain)(void) {
	void (*volatile inner)(void);
	PreMain();
	inner = NimMainInner;
	initStackBottomWith((void *)&inner);
	(*inner)();
}
int main(int argc, char** args, char** env) {
	cmdLine = args;
	cmdCount = argc;
	gEnv = env;
	NimMain();
	return nim_program_result;
}
N_LIB_PRIVATE N_NIMCALL(void, NimMainModule)(void) {
{
	NI T1_;
	tySequence__qwqHTkRvwhrRyENtudHQ7g* T2_;
	NI T3_;
	NI T4_;
	nimfr_("temp", "/home/runner/work/Nim/Nim/temp.nim");
	if (((aLen_0-1)) < ((NI) 0) || ((aLen_0-1)) > ((NI) IL64(9223372036854775807))){ raiseRangeErrorI((aLen_0-1), ((NI) 0), ((NI) IL64(9223372036854775807))); }
	T1_ = (NI)0;
	T1_ = f__temp_1(TM__SRd76hP9cMfCzdUO857UhQQ_2, 1, ((NI) ((aLen_0-1))));
	(void)(T1_);
	T2_ = NIM_NIL;
	T2_ = (tySequence__qwqHTkRvwhrRyENtudHQ7g*) newSeq((&NTIseqLintT__qwqHTkRvwhrRyENtudHQ7g_), 1);
	T2_->data[0] = ((NI) 0);
	T3_ = ((a ? a->Sup.len : 0)-1);
	if ((T3_) < ((NI) 0) || (T3_) > ((NI) IL64(9223372036854775807))){ raiseRangeErrorI(T3_, ((NI) 0), ((NI) IL64(9223372036854775807))); }
	T4_ = (NI)0;
	T4_ = x__temp_26(T2_, ((NI) (T3_)));
	(void)(T4_);
	popFrame();
}
}
N_LIB_PRIVATE N_NIMCALL(void, atmtempdotnim_DatInit000)(void) {
NTIseqLintT__qwqHTkRvwhrRyENtudHQ7g_.size = sizeof(tySequence__qwqHTkRvwhrRyENtudHQ7g*);
NTIseqLintT__qwqHTkRvwhrRyENtudHQ7g_.align = NIM_ALIGNOF(tySequence__qwqHTkRvwhrRyENtudHQ7g*);
NTIseqLintT__qwqHTkRvwhrRyENtudHQ7g_.kind = 24;
NTIseqLintT__qwqHTkRvwhrRyENtudHQ7g_.base = (&NTIint__rR5Bzr1D5krxoo1NcNyeMA_);
NTIseqLintT__qwqHTkRvwhrRyENtudHQ7g_.flags = 2;
NTIseqLintT__qwqHTkRvwhrRyENtudHQ7g_.marker = Marker_tySequence__qwqHTkRvwhrRyENtudHQ7g;
}

AST

nnkStmtList.newTree(
  nnkFuncDef.newTree(
    newIdentNode("f"),
    newEmptyNode(),
    newEmptyNode(),
    nnkFormalParams.newTree(
      newIdentNode("int"),
      nnkIdentDefs.newTree(
        newIdentNode("a"),
        nnkBracketExpr.newTree(
          newIdentNode("openArray"),
          newIdentNode("int")
        ),
        newEmptyNode()
      ),
      nnkIdentDefs.newTree(
        newIdentNode("i"),
        newIdentNode("Natural"),
        nnkDotExpr.newTree(
          newIdentNode("a"),
          newIdentNode("high")
        )
      )
    ),
    newEmptyNode(),
    newEmptyNode(),
    nnkStmtList.newTree(
      newLit(0)
    )
  ),
  nnkDiscardStmt.newTree(
    nnkCall.newTree(
      newIdentNode("f"),
      nnkBracket.newTree(
        newLit(0)
      )
    )
  ),
  nnkFuncDef.newTree(
    newIdentNode("x"),
    newEmptyNode(),
    newEmptyNode(),
    nnkFormalParams.newTree(
      newIdentNode("int"),
      nnkIdentDefs.newTree(
        newIdentNode("a"),
        nnkBracketExpr.newTree(
          newIdentNode("seq"),
          newIdentNode("int")
        ),
        newEmptyNode()
      ),
      nnkIdentDefs.newTree(
        newIdentNode("i"),
        newIdentNode("Natural"),
        nnkDotExpr.newTree(
          newIdentNode("a"),
          newIdentNode("high")
        )
      )
    ),
    newEmptyNode(),
    newEmptyNode(),
    nnkStmtList.newTree(
      newLit(0)
    )
  ),
  nnkDiscardStmt.newTree(
    nnkCall.newTree(
      newIdentNode("x"),
      nnkPrefix.newTree(
        newIdentNode("@"),
        nnkBracket.newTree(
          newLit(0)
        )
      )
    )
  )
)

1.6.0 :-1: FAIL

Output

Error: Command failed: nim c --run -d:strip -d:ssl -d:nimDisableCertificateValidation --forceBuild:on --colors:off --threads:off --verbosity:0 --hints:off --warnings:off --lineTrace:off  --nimcache:/home/runner/work/Nim/Nim --out:/home/runner/work/Nim/Nim/temp /home/runner/work/Nim/Nim/temp.nim
/home/runner/work/Nim/Nim/@mtemp.nim.c: In function ‘NimMainModule’:
/home/runner/work/Nim/Nim/@mtemp.nim.c:183:15: error: ‘aLen_0’ undeclared (first use in this function)
  183 |         if (((aLen_0-1)) < ((NI) 0) || ((aLen_0-1)) > ((NI) IL64(9223372036854775807))){ raiseRangeErrorI((aLen_0-1), ((NI) 0), ((NI) IL64(9223372036854775807))); }
      |               ^~~~~~
/home/runner/work/Nim/Nim/@mtemp.nim.c:183:15: note: each undeclared identifier is reported only once for each function it appears in
/home/runner/work/Nim/Nim/@mtemp.nim.c:190:17: error: ‘a’ undeclared (first use in this function)
  190 |         T3_ = ((a ? a->Sup.len : 0)-1);
      |                 ^
Error: execution of an external compiler program 'gcc -c  -w -fmax-errors=3   -I/home/runner/.choosenim/toolchains/nim-1.6.0/lib -I/home/runner/work/Nim/Nim -o /home/runner/work/Nim/Nim/@mtemp.nim.c.o /home/runner/work/Nim/Nim/@mtemp.nim.c' failed with exit code: 1

Stats

• Created 2023-07-06T20:29:00Z
• Started 2023-07-06T20:29:45
• Finished 2023-07-06T20:29:46
• Duration 1 minute
• Commands nim c --run -d:strip -d:ssl -d:nimDisableCertificateValidation --forceBuild:on --colors:off --threads:off --verbosity:0 --hints:off --warnings:off --lineTrace:off --nimcache:/home/runner/work/Nim/Nim --out:/home/runner/work/Nim/Nim/temp /home/runner/work/Nim/Nim/temp.nim

IR

#define NIM_INTBITS 64
#include "nimbase.h"
#undef LANGUAGE_C
#undef MIPSEB
#undef MIPSEL
#undef PPC
#undef R3000
#undef R4000
#undef i386
#undef linux
#undef mips
#undef near
#undef far
#undef powerpc
#undef unix
  #  define nimfr_(proc, file) \
      TFrame FR_; \
      FR_.procname = proc; FR_.filename = file; FR_.line = 0; FR_.len = 0; nimFrame(&FR_);
  #  define nimfrs_(proc, file, slots, length) \
      struct {TFrame* prev;NCSTRING procname;NI line;NCSTRING filename; NI len; VarSlot s[slots];} FR_; \
      FR_.procname = proc; FR_.filename = file; FR_.line = 0; FR_.len = length; nimFrame((TFrame*)&FR_);
  #  define nimln_(n, file) \
      FR_.line = n; FR_.filename = file;
  typedef struct tySequence__qwqHTkRvwhrRyENtudHQ7g tySequence__qwqHTkRvwhrRyENtudHQ7g;
typedef struct TGenericSeq TGenericSeq;
typedef struct TNimType TNimType;
typedef struct TNimNode TNimNode;
typedef NI tyArray__GAcaPw08Gj9cXYhAaMMr9cfw[1];
struct TGenericSeq {
NI len;
NI reserved;
};
typedef NU8 tyEnum_TNimKind__jIBKr1ejBgsfM33Kxw4j7A;
typedef NU8 tySet_tyEnum_TNimTypeFlag__v8QUszD1sWlSIWZz7mC4bQ;
typedef N_NIMCALL_PTR(void, tyProc__ojoeKfW4VYIm36I9cpDTQIg) (void* p, NI op);
typedef N_NIMCALL_PTR(void*, tyProc__WSm2xU5ARYv9aAR4l0z9c9auQ) (void* p);
struct TNimType {
NI size;
NI align;
tyEnum_TNimKind__jIBKr1ejBgsfM33Kxw4j7A kind;
tySet_tyEnum_TNimTypeFlag__v8QUszD1sWlSIWZz7mC4bQ flags;
TNimType* base;
TNimNode* node;
void* finalizer;
tyProc__ojoeKfW4VYIm36I9cpDTQIg marker;
tyProc__WSm2xU5ARYv9aAR4l0z9c9auQ deepcopy;
};
typedef NU8 tyEnum_TNimNodeKind__unfNsxrcATrufDZmpBq4HQ;
struct TNimNode {
tyEnum_TNimNodeKind__unfNsxrcATrufDZmpBq4HQ kind;
NI offset;
TNimType* typ;
NCSTRING name;
NI len;
TNimNode** sons;
};
struct tySequence__qwqHTkRvwhrRyENtudHQ7g {
  TGenericSeq Sup;
  NI data[SEQ_DECL_SIZE];
};
N_LIB_PRIVATE N_NIMCALL(NI, f_temp_1)(NI* a, NI aLen_0, NI i);
static N_INLINE(void, nimFrame)(TFrame* s);
N_LIB_PRIVATE N_NOINLINE(void, callDepthLimitReached_system_2997)(void);
static N_INLINE(void, popFrame)(void);
N_LIB_PRIVATE N_NOINLINE(void, raiseRangeErrorI)(NI64 i, NI64 a, NI64 b);
N_LIB_PRIVATE N_NIMCALL(NI, x_temp_26)(tySequence__qwqHTkRvwhrRyENtudHQ7g* a, NI i);
N_LIB_PRIVATE N_NIMCALL(void*, newSeq)(TNimType* typ, NI len);
static N_NIMCALL(void, Marker_tySequence__qwqHTkRvwhrRyENtudHQ7g)(void* p, NI op);
static N_INLINE(void, initStackBottomWith)(void* locals);
N_LIB_PRIVATE N_NOINLINE(void, nimGC_setStackBottom)(void* theStackBottom);
N_LIB_PRIVATE N_NIMCALL(void, systemDatInit000)(void);
N_LIB_PRIVATE N_NIMCALL(void, systemInit000)(void);
N_LIB_PRIVATE N_NIMCALL(void, tempDatInit000)(void);
N_LIB_PRIVATE N_NIMCALL(void, NimMainModule)(void);
static NIM_CONST tyArray__GAcaPw08Gj9cXYhAaMMr9cfw TM__SRd76hP9cMfCzdUO857UhQQ_2 = {((NI) 0)}
;
extern TNimType NTIint__rR5Bzr1D5krxoo1NcNyeMA_;
N_LIB_PRIVATE TNimType NTIseqLintT__qwqHTkRvwhrRyENtudHQ7g_;
extern TFrame* framePtr_system_2564;
extern TFrame* framePtr_system_2564;
extern TFrame* framePtr_system_2564;
extern TFrame* framePtr_system_2564;
extern TFrame* framePtr_system_2564;
extern TFrame* framePtr_system_2564;
static N_INLINE(void, nimFrame)(TFrame* s) {
	{
		if (!(framePtr_system_2564 == ((TFrame*) NIM_NIL))) goto LA3_;
		(*s).calldepth = ((NI16) 0);
	}
	goto LA1_;
	LA3_: ;
	{
		(*s).calldepth = (NI16)((*framePtr_system_2564).calldepth + ((NI16) 1));
	}
	LA1_: ;
	(*s).prev = framePtr_system_2564;
	framePtr_system_2564 = s;
	{
		if (!((*s).calldepth == ((NI16) 2000))) goto LA8_;
		callDepthLimitReached_system_2997();
	}
	LA8_: ;
}
static N_INLINE(void, popFrame)(void) {
	framePtr_system_2564 = (*framePtr_system_2564).prev;
}
N_LIB_PRIVATE N_NIMCALL(NI, f_temp_1)(NI* a, NI aLen_0, NI i) {
	NI result;
	nimfr_("f", "/home/runner/work/Nim/Nim/temp.nim");
	result = (NI)0;
	result = ((NI) 0);
	popFrame();
	return result;
}
N_LIB_PRIVATE N_NIMCALL(NI, x_temp_26)(tySequence__qwqHTkRvwhrRyENtudHQ7g* a, NI i) {
	NI result;
	nimfr_("x", "/home/runner/work/Nim/Nim/temp.nim");
	result = (NI)0;
	result = ((NI) 0);
	popFrame();
	return result;
}
static N_NIMCALL(void, Marker_tySequence__qwqHTkRvwhrRyENtudHQ7g)(void* p, NI op) {
	tySequence__qwqHTkRvwhrRyENtudHQ7g* a;
	NI T1_;
	a = (tySequence__qwqHTkRvwhrRyENtudHQ7g*)p;
	T1_ = (NI)0;
}
static N_INLINE(void, initStackBottomWith)(void* locals) {
	nimGC_setStackBottom(locals);
}
N_LIB_PRIVATE void PreMainInner(void) {
}
N_LIB_PRIVATE int cmdCount;
N_LIB_PRIVATE char** cmdLine;
N_LIB_PRIVATE char** gEnv;
N_LIB_PRIVATE void PreMain(void) {
	void (*volatile inner)(void);
	inner = PreMainInner;
	systemDatInit000();
	initStackBottomWith((void *)&inner);
	systemInit000();
	tempDatInit000();
	(*inner)();
}
N_LIB_PRIVATE N_CDECL(void, NimMainInner)(void) {
	NimMainModule();
}
N_CDECL(void, NimMain)(void) {
	void (*volatile inner)(void);
	PreMain();
	inner = NimMainInner;
	initStackBottomWith((void *)&inner);
	(*inner)();
}
int main(int argc, char** args, char** env) {
	cmdLine = args;
	cmdCount = argc;
	gEnv = env;
	NimMain();
	return nim_program_result;
}
N_LIB_PRIVATE N_NIMCALL(void, NimMainModule)(void) {
{
	NI T1_;
	tySequence__qwqHTkRvwhrRyENtudHQ7g* T2_;
	NI T3_;
	NI T4_;
	nimfr_("temp", "/home/runner/work/Nim/Nim/temp.nim");
	if (((aLen_0-1)) < ((NI) 0) || ((aLen_0-1)) > ((NI) IL64(9223372036854775807))){ raiseRangeErrorI((aLen_0-1), ((NI) 0), ((NI) IL64(9223372036854775807))); }
	T1_ = (NI)0;
	T1_ = f_temp_1(TM__SRd76hP9cMfCzdUO857UhQQ_2, 1, ((NI) ((aLen_0-1))));
	(void)(T1_);
	T2_ = (tySequence__qwqHTkRvwhrRyENtudHQ7g*)0;
	T2_ = (tySequence__qwqHTkRvwhrRyENtudHQ7g*) newSeq((&NTIseqLintT__qwqHTkRvwhrRyENtudHQ7g_), 1);
	T2_->data[0] = ((NI) 0);
	T3_ = ((a ? a->Sup.len : 0)-1);
	if ((T3_) < ((NI) 0) || (T3_) > ((NI) IL64(9223372036854775807))){ raiseRangeErrorI(T3_, ((NI) 0), ((NI) IL64(9223372036854775807))); }
	T4_ = (NI)0;
	T4_ = x_temp_26(T2_, ((NI) (T3_)));
	(void)(T4_);
	popFrame();
}
}
N_LIB_PRIVATE N_NIMCALL(void, tempDatInit000)(void) {
NTIseqLintT__qwqHTkRvwhrRyENtudHQ7g_.size = sizeof(tySequence__qwqHTkRvwhrRyENtudHQ7g*);
NTIseqLintT__qwqHTkRvwhrRyENtudHQ7g_.align = NIM_ALIGNOF(tySequence__qwqHTkRvwhrRyENtudHQ7g*);
NTIseqLintT__qwqHTkRvwhrRyENtudHQ7g_.kind = 24;
NTIseqLintT__qwqHTkRvwhrRyENtudHQ7g_.base = (&NTIint__rR5Bzr1D5krxoo1NcNyeMA_);
NTIseqLintT__qwqHTkRvwhrRyENtudHQ7g_.marker = Marker_tySequence__qwqHTkRvwhrRyENtudHQ7g;
}

AST

nnkStmtList.newTree(
  nnkFuncDef.newTree(
    newIdentNode("f"),
    newEmptyNode(),
    newEmptyNode(),
    nnkFormalParams.newTree(
      newIdentNode("int"),
      nnkIdentDefs.newTree(
        newIdentNode("a"),
        nnkBracketExpr.newTree(
          newIdentNode("openArray"),
          newIdentNode("int")
        ),
        newEmptyNode()
      ),
      nnkIdentDefs.newTree(
        newIdentNode("i"),
        newIdentNode("Natural"),
        nnkDotExpr.newTree(
          newIdentNode("a"),
          newIdentNode("high")
        )
      )
    ),
    newEmptyNode(),
    newEmptyNode(),
    nnkStmtList.newTree(
      newLit(0)
    )
  ),
  nnkDiscardStmt.newTree(
    nnkCall.newTree(
      newIdentNode("f"),
      nnkBracket.newTree(
        newLit(0)
      )
    )
  ),
  nnkFuncDef.newTree(
    newIdentNode("x"),
    newEmptyNode(),
    newEmptyNode(),
    nnkFormalParams.newTree(
      newIdentNode("int"),
      nnkIdentDefs.newTree(
        newIdentNode("a"),
        nnkBracketExpr.newTree(
          newIdentNode("seq"),
          newIdentNode("int")
        ),
        newEmptyNode()
      ),
      nnkIdentDefs.newTree(
        newIdentNode("i"),
        newIdentNode("Natural"),
        nnkDotExpr.newTree(
          newIdentNode("a"),
          newIdentNode("high")
        )
      )
    ),
    newEmptyNode(),
    newEmptyNode(),
    nnkStmtList.newTree(
      newLit(0)
    )
  ),
  nnkDiscardStmt.newTree(
    nnkCall.newTree(
      newIdentNode("x"),
      nnkPrefix.newTree(
        newIdentNode("@"),
        nnkBracket.newTree(
          newLit(0)
        )
      )
    )
  )
)

1.4.0 :-1: FAIL

Output

Error: Command failed: nim c --run -d:strip -d:ssl -d:nimDisableCertificateValidation --forceBuild:on --colors:off --threads:off --verbosity:0 --hints:off --warnings:off --lineTrace:off  --nimcache:/home/runner/work/Nim/Nim --out:/home/runner/work/Nim/Nim/temp /home/runner/work/Nim/Nim/temp.nim
/home/runner/work/Nim/Nim/@mtemp.nim.c: In function ‘NimMainModule’:
/home/runner/work/Nim/Nim/@mtemp.nim.c:169:15: error: ‘aLen_0’ undeclared (first use in this function)
  169 |         if (((aLen_0-1)) < ((NI) 0) || ((aLen_0-1)) > ((NI) IL64(9223372036854775807))){ raiseRangeErrorI((aLen_0-1), ((NI) 0), ((NI) IL64(9223372036854775807))); }
      |               ^~~~~~
/home/runner/work/Nim/Nim/@mtemp.nim.c:169:15: note: each undeclared identifier is reported only once for each function it appears in
/home/runner/work/Nim/Nim/@mtemp.nim.c:173:17: error: ‘a’ undeclared (first use in this function)
  173 |         T2_ = ((a ? a->Sup.len : 0)-1);
      |                 ^
Error: execution of an external compiler program 'gcc -c  -w -fmax-errors=3   -I/home/runner/.choosenim/toolchains/nim-1.4.0/lib -I/home/runner/work/Nim/Nim -o /home/runner/work/Nim/Nim/@mtemp.nim.c.o /home/runner/work/Nim/Nim/@mtemp.nim.c' failed with exit code: 1

Stats

• Created 2023-07-06T20:29:00Z
• Started 2023-07-06T20:29:50
• Finished 2023-07-06T20:29:51
• Duration 1 minute
• Commands nim c --run -d:strip -d:ssl -d:nimDisableCertificateValidation --forceBuild:on --colors:off --threads:off --verbosity:0 --hints:off --warnings:off --lineTrace:off --nimcache:/home/runner/work/Nim/Nim --out:/home/runner/work/Nim/Nim/temp /home/runner/work/Nim/Nim/temp.nim

IR

#define NIM_INTBITS 64

#include "nimbase.h"
#undef LANGUAGE_C
#undef MIPSEB
#undef MIPSEL
#undef PPC
#undef R3000
#undef R4000
#undef i386
#undef linux
#undef mips
#undef near
#undef far
#undef powerpc
#undef unix

  #  define nimfr_(proc, file) \
      TFrame FR_; \
      FR_.procname = proc; FR_.filename = file; FR_.line = 0; FR_.len = 0; nimFrame(&FR_);
  #  define nimfrs_(proc, file, slots, length) \
      struct {TFrame* prev;NCSTRING procname;NI line;NCSTRING filename; NI len; VarSlot s[slots];} FR_; \
      FR_.procname = proc; FR_.filename = file; FR_.line = 0; FR_.len = length; nimFrame((TFrame*)&FR_);
  #  define nimln_(n, file) \
      FR_.line = n; FR_.filename = file;

typedef struct tySequence__qwqHTkRvwhrRyENtudHQ7g tySequence__qwqHTkRvwhrRyENtudHQ7g;
typedef struct TGenericSeq TGenericSeq;

typedef NI tyArray__GAcaPw08Gj9cXYhAaMMr9cfw[1];
struct TGenericSeq {
NI len;
NI reserved;
};

struct tySequence__qwqHTkRvwhrRyENtudHQ7g {
  TGenericSeq Sup;
  NI data[SEQ_DECL_SIZE];
};

N_LIB_PRIVATE N_NIMCALL(NI, f__CCfxCXjCNM5hZm6C45d88w)(NI* a, NI aLen_0, NI i);
static N_INLINE(void, nimFrame)(TFrame* s);
N_LIB_PRIVATE N_NOINLINE(void, callDepthLimitReached__mMRdr4sgmnykA9aWeM9aDZlw)(void);
static N_INLINE(void, popFrame)(void);
N_LIB_PRIVATE N_NOINLINE(void, raiseRangeErrorI)(NI64 i, NI64 a, NI64 b);
N_LIB_PRIVATE N_NIMCALL(NI, x__sDAdEN6A6hAeEkY9cwXT3Ng)(tySequence__qwqHTkRvwhrRyENtudHQ7g* a, NI i);
static N_INLINE(void, initStackBottomWith)(void* locals);
N_LIB_PRIVATE N_NOINLINE(void, nimGC_setStackBottom)(void* theStackBottom);
N_LIB_PRIVATE N_NIMCALL(void, systemDatInit000)(void);
N_LIB_PRIVATE N_NIMCALL(void, systemInit000)(void);
N_LIB_PRIVATE N_NIMCALL(void, NimMainModule)(void);

static NIM_CONST tyArray__GAcaPw08Gj9cXYhAaMMr9cfw TM__SRd76hP9cMfCzdUO857UhQQ_2 = {((NI) 0)}
;
static NIM_CONST struct {
  TGenericSeq Sup;
  NI data[1];
} TM__SRd76hP9cMfCzdUO857UhQQ_4 = {{1, 1 | NIM_STRLIT_FLAG}, {((NI) 0)}};
static NIM_CONST tySequence__qwqHTkRvwhrRyENtudHQ7g* TM__SRd76hP9cMfCzdUO857UhQQ_3 = ((tySequence__qwqHTkRvwhrRyENtudHQ7g*)&TM__SRd76hP9cMfCzdUO857UhQQ_4);

extern TFrame* framePtr__HRfVMH3jYeBJz6Q6X9b6Ptw;
extern TFrame* framePtr__HRfVMH3jYeBJz6Q6X9b6Ptw;
extern TFrame* framePtr__HRfVMH3jYeBJz6Q6X9b6Ptw;
extern TFrame* framePtr__HRfVMH3jYeBJz6Q6X9b6Ptw;
extern TFrame* framePtr__HRfVMH3jYeBJz6Q6X9b6Ptw;
extern TFrame* framePtr__HRfVMH3jYeBJz6Q6X9b6Ptw;

static N_INLINE(void, nimFrame)(TFrame* s) {
	{
		if (!(framePtr__HRfVMH3jYeBJz6Q6X9b6Ptw == NIM_NIL)) goto LA3_;
		(*s).calldepth = ((NI16) 0);
	}
	goto LA1_;
	LA3_: ;
	{
		(*s).calldepth = (NI16)((*framePtr__HRfVMH3jYeBJz6Q6X9b6Ptw).calldepth + ((NI16) 1));
	}
	LA1_: ;
	(*s).prev = framePtr__HRfVMH3jYeBJz6Q6X9b6Ptw;
	framePtr__HRfVMH3jYeBJz6Q6X9b6Ptw = s;
	{
		if (!((*s).calldepth == ((NI16) 2000))) goto LA8_;
		callDepthLimitReached__mMRdr4sgmnykA9aWeM9aDZlw();
	}
	LA8_: ;
}
static N_INLINE(void, popFrame)(void) {
	framePtr__HRfVMH3jYeBJz6Q6X9b6Ptw = (*framePtr__HRfVMH3jYeBJz6Q6X9b6Ptw).prev;
}
N_LIB_PRIVATE N_NIMCALL(NI, f__CCfxCXjCNM5hZm6C45d88w)(NI* a, NI aLen_0, NI i) {
	NI result;
	nimfr_("f", "/home/runner/work/Nim/Nim/temp.nim");
	result = (NI)0;
	result = ((NI) 0);
	popFrame();
	return result;
}
N_LIB_PRIVATE N_NIMCALL(NI, x__sDAdEN6A6hAeEkY9cwXT3Ng)(tySequence__qwqHTkRvwhrRyENtudHQ7g* a, NI i) {
	NI result;
	nimfr_("x", "/home/runner/work/Nim/Nim/temp.nim");
	result = (NI)0;
	result = ((NI) 0);
	popFrame();
	return result;
}
static N_INLINE(void, initStackBottomWith)(void* locals) {
	nimGC_setStackBottom(locals);
}
N_LIB_PRIVATE void PreMainInner(void) {
}
N_LIB_PRIVATE int cmdCount;
N_LIB_PRIVATE char** cmdLine;
N_LIB_PRIVATE char** gEnv;
N_LIB_PRIVATE void PreMain(void) {
	void (*volatile inner)(void);
	inner = PreMainInner;
	systemDatInit000();
	initStackBottomWith((void *)&inner);
	systemInit000();
	(*inner)();
}
N_LIB_PRIVATE N_CDECL(void, NimMainInner)(void) {
	NimMainModule();
}
N_CDECL(void, NimMain)(void) {
	void (*volatile inner)(void);
	PreMain();
	inner = NimMainInner;
	initStackBottomWith((void *)&inner);
	(*inner)();
}
int main(int argc, char** args, char** env) {
	cmdLine = args;
	cmdCount = argc;
	gEnv = env;
	NimMain();
	return nim_program_result;
}
N_LIB_PRIVATE N_NIMCALL(void, NimMainModule)(void) {
{
	NI T1_;
	NI T2_;
	NI T3_;
	nimfr_("temp", "/home/runner/work/Nim/Nim/temp.nim");
	if (((aLen_0-1)) < ((NI) 0) || ((aLen_0-1)) > ((NI) IL64(9223372036854775807))){ raiseRangeErrorI((aLen_0-1), ((NI) 0), ((NI) IL64(9223372036854775807))); }
	T1_ = (NI)0;
	T1_ = f__CCfxCXjCNM5hZm6C45d88w(TM__SRd76hP9cMfCzdUO857UhQQ_2, 1, ((NI) ((aLen_0-1))));
	(void)(T1_);
	T2_ = ((a ? a->Sup.len : 0)-1);
	if ((T2_) < ((NI) 0) || (T2_) > ((NI) IL64(9223372036854775807))){ raiseRangeErrorI(T2_, ((NI) 0), ((NI) IL64(9223372036854775807))); }
	T3_ = (NI)0;
	T3_ = x__sDAdEN6A6hAeEkY9cwXT3Ng(TM__SRd76hP9cMfCzdUO857UhQQ_3, ((NI) (T2_)));
	(void)(T3_);
	popFrame();
}
}

AST

nnkStmtList.newTree(
  nnkFuncDef.newTree(
    newIdentNode("f"),
    newEmptyNode(),
    newEmptyNode(),
    nnkFormalParams.newTree(
      newIdentNode("int"),
      nnkIdentDefs.newTree(
        newIdentNode("a"),
        nnkBracketExpr.newTree(
          newIdentNode("openArray"),
          newIdentNode("int")
        ),
        newEmptyNode()
      ),
      nnkIdentDefs.newTree(
        newIdentNode("i"),
        newIdentNode("Natural"),
        nnkDotExpr.newTree(
          newIdentNode("a"),
          newIdentNode("high")
        )
      )
    ),
    newEmptyNode(),
    newEmptyNode(),
    nnkStmtList.newTree(
      newLit(0)
    )
  ),
  nnkDiscardStmt.newTree(
    nnkCall.newTree(
      newIdentNode("f"),
      nnkBracket.newTree(
        newLit(0)
      )
    )
  ),
  nnkFuncDef.newTree(
    newIdentNode("x"),
    newEmptyNode(),
    newEmptyNode(),
    nnkFormalParams.newTree(
      newIdentNode("int"),
      nnkIdentDefs.newTree(
        newIdentNode("a"),
        nnkBracketExpr.newTree(
          newIdentNode("seq"),
          newIdentNode("int")
        ),
        newEmptyNode()
      ),
      nnkIdentDefs.newTree(
        newIdentNode("i"),
        newIdentNode("Natural"),
        nnkDotExpr.newTree(
          newIdentNode("a"),
          newIdentNode("high")
        )
      )
    ),
    newEmptyNode(),
    newEmptyNode(),
    nnkStmtList.newTree(
      newLit(0)
    )
  ),
  nnkDiscardStmt.newTree(
    nnkCall.newTree(
      newIdentNode("x"),
      nnkPrefix.newTree(
        newIdentNode("@"),
        nnkBracket.newTree(
          newLit(0)
        )
      )
    )
  )
)

1.2.0 :-1: FAIL

Output

Error: Command failed: nim c --run -d:strip -d:ssl -d:nimDisableCertificateValidation --forceBuild:on --colors:off --threads:off --verbosity:0 --hints:off --warnings:off --lineTrace:off  --nimcache:/home/runner/work/Nim/Nim --out:/home/runner/work/Nim/Nim/temp /home/runner/work/Nim/Nim/temp.nim
/home/runner/work/Nim/Nim/@mtemp.nim.c: In function ‘NimMainModule’:
/home/runner/work/Nim/Nim/@mtemp.nim.c:151:15: error: ‘aLen_0’ undeclared (first use in this function)
  151 |         if (((aLen_0-1)) < ((NI) 0) || ((aLen_0-1)) > ((NI) IL64(9223372036854775807))){ raiseRangeErrorI((aLen_0-1), ((NI) 0), ((NI) IL64(9223372036854775807))); }
      |               ^~~~~~
/home/runner/work/Nim/Nim/@mtemp.nim.c:151:15: note: each undeclared identifier is reported only once for each function it appears in
/home/runner/work/Nim/Nim/@mtemp.nim.c:155:17: error: ‘a’ undeclared (first use in this function)
  155 |         T2_ = ((a ? a->Sup.len : 0)-1);
      |                 ^
Error: execution of an external compiler program 'gcc -c  -w   -I/home/runner/.choosenim/toolchains/nim-1.2.0/lib -I/home/runner/work/Nim/Nim -o /home/runner/work/Nim/Nim/@mtemp.nim.c.o /home/runner/work/Nim/Nim/@mtemp.nim.c' failed with exit code: 1

Stats

• Created 2023-07-06T20:29:00Z
• Started 2023-07-06T20:30:07
• Finished 2023-07-06T20:30:08
• Duration 1 minute
• Commands nim c --run -d:strip -d:ssl -d:nimDisableCertificateValidation --forceBuild:on --colors:off --threads:off --verbosity:0 --hints:off --warnings:off --lineTrace:off --nimcache:/home/runner/work/Nim/Nim --out:/home/runner/work/Nim/Nim/temp /home/runner/work/Nim/Nim/temp.nim

IR

#define NIM_INTBITS 64
#include "nimbase.h"
#undef LANGUAGE_C
#undef MIPSEB
#undef MIPSEL
#undef PPC
#undef R3000
#undef R4000
#undef i386
#undef linux
#undef mips
#undef near
#undef far
#undef powerpc
#undef unix
  #  define nimfr_(proc, file) \
      TFrame FR_; \
      FR_.procname = proc; FR_.filename = file; FR_.line = 0; FR_.len = 0; nimFrame(&FR_);
  #  define nimfrs_(proc, file, slots, length) \
      struct {TFrame* prev;NCSTRING procname;NI line;NCSTRING filename; NI len; VarSlot s[slots];} FR_; \
      FR_.procname = proc; FR_.filename = file; FR_.line = 0; FR_.len = length; nimFrame((TFrame*)&FR_);
  #  define nimln_(n, file) \
      FR_.line = n; FR_.filename = file;
  typedef struct tySequence__qwqHTkRvwhrRyENtudHQ7g tySequence__qwqHTkRvwhrRyENtudHQ7g;
typedef struct TGenericSeq TGenericSeq;
typedef NI tyArray__GAcaPw08Gj9cXYhAaMMr9cfw[1];
struct TGenericSeq {
NI len;
NI reserved;
};
struct tySequence__qwqHTkRvwhrRyENtudHQ7g {
  TGenericSeq Sup;
  NI data[SEQ_DECL_SIZE];
};
N_LIB_PRIVATE N_NIMCALL(NI, f__CCfxCXjCNM5hZm6C45d88w)(NI* a, NI aLen_0, NI i);
static N_INLINE(void, nimFrame)(TFrame* s);
N_LIB_PRIVATE N_NOINLINE(void, callDepthLimitReached__mMRdr4sgmnykA9aWeM9aDZlw)(void);
static N_INLINE(void, popFrame)(void);
N_LIB_PRIVATE N_NOINLINE(void, raiseRangeErrorI)(NI64 i, NI64 a, NI64 b);
N_LIB_PRIVATE N_NIMCALL(NI, x__sDAdEN6A6hAeEkY9cwXT3Ng)(tySequence__qwqHTkRvwhrRyENtudHQ7g* a, NI i);
static N_INLINE(void, initStackBottomWith)(void* locals);
N_LIB_PRIVATE N_NOINLINE(void, nimGC_setStackBottom)(void* theStackBottom);
N_LIB_PRIVATE N_NIMCALL(void, systemDatInit000)(void);
N_LIB_PRIVATE N_NIMCALL(void, systemInit000)(void);
N_LIB_PRIVATE N_NIMCALL(void, NimMainModule)(void);
static NIM_CONST tyArray__GAcaPw08Gj9cXYhAaMMr9cfw TM__SRd76hP9cMfCzdUO857UhQQ_2 = {((NI) 0)}
;
static NIM_CONST struct {
  TGenericSeq Sup;
  NI data[1];
} TM__SRd76hP9cMfCzdUO857UhQQ_4 = {{1, 1 | NIM_STRLIT_FLAG}, {((NI) 0)}};
static NIM_CONST tySequence__qwqHTkRvwhrRyENtudHQ7g* TM__SRd76hP9cMfCzdUO857UhQQ_3 = ((tySequence__qwqHTkRvwhrRyENtudHQ7g*)&TM__SRd76hP9cMfCzdUO857UhQQ_4);
extern TFrame* framePtr__HRfVMH3jYeBJz6Q6X9b6Ptw;
extern TFrame* framePtr__HRfVMH3jYeBJz6Q6X9b6Ptw;
extern TFrame* framePtr__HRfVMH3jYeBJz6Q6X9b6Ptw;
extern TFrame* framePtr__HRfVMH3jYeBJz6Q6X9b6Ptw;
extern TFrame* framePtr__HRfVMH3jYeBJz6Q6X9b6Ptw;
extern TFrame* framePtr__HRfVMH3jYeBJz6Q6X9b6Ptw;
static N_INLINE(void, nimFrame)(TFrame* s) {
	{
		if (!(framePtr__HRfVMH3jYeBJz6Q6X9b6Ptw == NIM_NIL)) goto LA3_;
		(*s).calldepth = ((NI16) 0);
	}
	goto LA1_;
	LA3_: ;
	{
		(*s).calldepth = (NI16)((*framePtr__HRfVMH3jYeBJz6Q6X9b6Ptw).calldepth + ((NI16) 1));
	}
	LA1_: ;
	(*s).prev = framePtr__HRfVMH3jYeBJz6Q6X9b6Ptw;
	framePtr__HRfVMH3jYeBJz6Q6X9b6Ptw = s;
	{
		if (!((*s).calldepth == ((NI16) (((NI) 2000))))) goto LA8_;
		callDepthLimitReached__mMRdr4sgmnykA9aWeM9aDZlw();
	}
	LA8_: ;
}
static N_INLINE(void, popFrame)(void) {
	framePtr__HRfVMH3jYeBJz6Q6X9b6Ptw = (*framePtr__HRfVMH3jYeBJz6Q6X9b6Ptw).prev;
}
N_LIB_PRIVATE N_NIMCALL(NI, f__CCfxCXjCNM5hZm6C45d88w)(NI* a, NI aLen_0, NI i) {
	NI result;
	nimfr_("f", "/home/runner/work/Nim/Nim/temp.nim");
	result = (NI)0;
	result = ((NI) 0);
	popFrame();
	return result;
}
N_LIB_PRIVATE N_NIMCALL(NI, x__sDAdEN6A6hAeEkY9cwXT3Ng)(tySequence__qwqHTkRvwhrRyENtudHQ7g* a, NI i) {
	NI result;
	nimfr_("x", "/home/runner/work/Nim/Nim/temp.nim");
	result = (NI)0;
	result = ((NI) 0);
	popFrame();
	return result;
}
static N_INLINE(void, initStackBottomWith)(void* locals) {
	nimGC_setStackBottom(locals);
}
N_LIB_PRIVATE void PreMainInner(void) {
}
N_LIB_PRIVATE int cmdCount;
N_LIB_PRIVATE char** cmdLine;
N_LIB_PRIVATE char** gEnv;
N_LIB_PRIVATE void PreMain(void) {
	void (*volatile inner)(void);
	inner = PreMainInner;
	systemDatInit000();
	initStackBottomWith((void *)&inner);
	systemInit000();
	(*inner)();
}
N_LIB_PRIVATE N_CDECL(void, NimMainInner)(void) {
	NimMainModule();
}
N_CDECL(void, NimMain)(void) {
	void (*volatile inner)(void);
	PreMain();
	inner = NimMainInner;
	initStackBottomWith((void *)&inner);
	(*inner)();
}
int main(int argc, char** args, char** env) {
	cmdLine = args;
	cmdCount = argc;
	gEnv = env;
	NimMain();
	return nim_program_result;
}
N_LIB_PRIVATE N_NIMCALL(void, NimMainModule)(void) {
{
	NI T1_;
	NI T2_;
	NI T3_;
	nimfr_("temp", "/home/runner/work/Nim/Nim/temp.nim");
	if (((aLen_0-1)) < ((NI) 0) || ((aLen_0-1)) > ((NI) IL64(9223372036854775807))){ raiseRangeErrorI((aLen_0-1), ((NI) 0), ((NI) IL64(9223372036854775807))); }
	T1_ = (NI)0;
	T1_ = f__CCfxCXjCNM5hZm6C45d88w(TM__SRd76hP9cMfCzdUO857UhQQ_2, 1, ((NI) ((aLen_0-1))));
	(void)(T1_);
	T2_ = ((a ? a->Sup.len : 0)-1);
	if ((T2_) < ((NI) 0) || (T2_) > ((NI) IL64(9223372036854775807))){ raiseRangeErrorI(T2_, ((NI) 0), ((NI) IL64(9223372036854775807))); }
	T3_ = (NI)0;
	T3_ = x__sDAdEN6A6hAeEkY9cwXT3Ng(TM__SRd76hP9cMfCzdUO857UhQQ_3, ((NI) (T2_)));
	(void)(T3_);
	popFrame();
}
}

AST

nnkStmtList.newTree(
  nnkFuncDef.newTree(
    newIdentNode("f"),
    newEmptyNode(),
    newEmptyNode(),
    nnkFormalParams.newTree(
      newIdentNode("int"),
      nnkIdentDefs.newTree(
        newIdentNode("a"),
        nnkBracketExpr.newTree(
          newIdentNode("openArray"),
          newIdentNode("int")
        ),
        newEmptyNode()
      ),
      nnkIdentDefs.newTree(
        newIdentNode("i"),
        newIdentNode("Natural"),
        nnkDotExpr.newTree(
          newIdentNode("a"),
          newIdentNode("high")
        )
      )
    ),
    newEmptyNode(),
    newEmptyNode(),
    nnkStmtList.newTree(
      newLit(0)
    )
  ),
  nnkDiscardStmt.newTree(
    nnkCall.newTree(
      newIdentNode("f"),
      nnkBracket.newTree(
        newLit(0)
      )
    )
  ),
  nnkFuncDef.newTree(
    newIdentNode("x"),
    newEmptyNode(),
    newEmptyNode(),
    nnkFormalParams.newTree(
      newIdentNode("int"),
      nnkIdentDefs.newTree(
        newIdentNode("a"),
        nnkBracketExpr.newTree(
          newIdentNode("seq"),
          newIdentNode("int")
        ),
        newEmptyNode()
      ),
      nnkIdentDefs.newTree(
        newIdentNode("i"),
        newIdentNode("Natural"),
        nnkDotExpr.newTree(
          newIdentNode("a"),
          newIdentNode("high")
        )
      )
    ),
    newEmptyNode(),
    newEmptyNode(),
    nnkStmtList.newTree(
      newLit(0)
    )
  ),
  nnkDiscardStmt.newTree(
    nnkCall.newTree(
      newIdentNode("x"),
      nnkPrefix.newTree(
        newIdentNode("@"),
        nnkBracket.newTree(
          newLit(0)
        )
      )
    )
  )
)

1.0.0 :-1: FAIL

Output

Error: Command failed: nim c --run -d:strip -d:ssl -d:nimDisableCertificateValidation --forceBuild:on --colors:off --threads:off --verbosity:0 --hints:off --warnings:off --lineTrace:off  --nimcache:/home/runner/work/Nim/Nim --out:/home/runner/work/Nim/Nim/temp /home/runner/work/Nim/Nim/temp.nim
Error: execution of an external compiler program 'gcc -c  -w  -I/home/runner/.choosenim/toolchains/nim-1.0.0/lib -I/home/runner/work/Nim/Nim -o /home/runner/work/Nim/Nim/@mtemp.nim.c.o /home/runner/work/Nim/Nim/@mtemp.nim.c' failed with exit code: 1

/home/runner/work/Nim/Nim/@mtemp.nim.c: In function ‘NimMainModule’:
/home/runner/work/Nim/Nim/@mtemp.nim.c:185:91: error: ‘aLen_0’ undeclared (first use in this function)
  185 |         T1_ = f__CCfxCXjCNM5hZm6C45d88w(TM__SRd76hP9cMfCzdUO857UhQQ_2, 1, ((NI)chckRange((aLen_0-1), ((NI) 0), ((NI) IL64(9223372036854775807)))));
      |                                                                                           ^~~~~~
/home/runner/work/Nim/Nim/@mtemp.nim.c:185:91: note: each undeclared identifier is reported only once for each function it appears in
/home/runner/work/Nim/Nim/@mtemp.nim.c:187:17: error: ‘a’ undeclared (first use in this function)
  187 |         T2_ = ((a ? a->Sup.len : 0)-1);
      |                 ^

Stats

• Created 2023-07-06T20:29:00Z
• Started 2023-07-06T20:30:22
• Finished 2023-07-06T20:30:22
• Duration now
• Commands nim c --run -d:strip -d:ssl -d:nimDisableCertificateValidation --forceBuild:on --colors:off --threads:off --verbosity:0 --hints:off --warnings:off --lineTrace:off --nimcache:/home/runner/work/Nim/Nim --out:/home/runner/work/Nim/Nim/temp /home/runner/work/Nim/Nim/temp.nim

IR

#define NIM_INTBITS 64
#include "nimbase.h"
#undef LANGUAGE_C
#undef MIPSEB
#undef MIPSEL
#undef PPC
#undef R3000
#undef R4000
#undef i386
#undef linux
#undef mips
#undef near
#undef far
#undef powerpc
#undef unix
  #  define nimfr_(proc, file) \
      TFrame FR_; \
      FR_.procname = proc; FR_.filename = file; FR_.line = 0; FR_.len = 0; nimFrame(&FR_);
  #  define nimfrs_(proc, file, slots, length) \
      struct {TFrame* prev;NCSTRING procname;NI line;NCSTRING filename; NI len; VarSlot s[slots];} FR_; \
      FR_.procname = proc; FR_.filename = file; FR_.line = 0; FR_.len = length; nimFrame((TFrame*)&FR_);
  #  define nimln_(n, file) \
      FR_.line = n; FR_.filename = file;
  typedef struct tySequence__qwqHTkRvwhrRyENtudHQ7g tySequence__qwqHTkRvwhrRyENtudHQ7g;
typedef struct TGenericSeq TGenericSeq;
typedef NI tyArray__GAcaPw08Gj9cXYhAaMMr9cfw[1];
struct TGenericSeq {
NI len;
NI reserved;
};
struct tySequence__qwqHTkRvwhrRyENtudHQ7g {
  TGenericSeq Sup;
  NI data[SEQ_DECL_SIZE];
};
N_LIB_PRIVATE N_NIMCALL(NI, f__CCfxCXjCNM5hZm6C45d88w)(NI* a, NI aLen_0, NI i);
static N_INLINE(void, nimFrame)(TFrame* s);
N_LIB_PRIVATE N_NOINLINE(void, callDepthLimitReached__mMRdr4sgmnykA9aWeM9aDZlw)(void);
static N_INLINE(void, popFrame)(void);
static N_INLINE(NI, chckRange)(NI i, NI a, NI b);
N_NOINLINE(void, raiseRangeError)(NI64 val);
N_LIB_PRIVATE N_NIMCALL(NI, x__sDAdEN6A6hAeEkY9cwXT3Ng)(tySequence__qwqHTkRvwhrRyENtudHQ7g* a, NI i);
static N_INLINE(void, initStackBottomWith)(void* locals);
N_NOINLINE(void, nimGC_setStackBottom)(void* theStackBottom);
N_LIB_PRIVATE N_NIMCALL(void, systemDatInit000)(void);
N_LIB_PRIVATE N_NIMCALL(void, systemInit000)(void);
N_LIB_PRIVATE N_NIMCALL(void, NimMainModule)(void);
extern TFrame* framePtr__HRfVMH3jYeBJz6Q6X9b6Ptw;
extern TFrame* framePtr__HRfVMH3jYeBJz6Q6X9b6Ptw;
extern TFrame* framePtr__HRfVMH3jYeBJz6Q6X9b6Ptw;
extern TFrame* framePtr__HRfVMH3jYeBJz6Q6X9b6Ptw;
extern TFrame* framePtr__HRfVMH3jYeBJz6Q6X9b6Ptw;
extern TFrame* framePtr__HRfVMH3jYeBJz6Q6X9b6Ptw;
NIM_CONST tyArray__GAcaPw08Gj9cXYhAaMMr9cfw TM__SRd76hP9cMfCzdUO857UhQQ_2 = {((NI) 0)}
;
NIM_CONST struct {
  TGenericSeq Sup;
  NI data[1];
} TM__SRd76hP9cMfCzdUO857UhQQ_4 = {{1, 1 | NIM_STRLIT_FLAG}, {((NI) 0)}};
NIM_CONST tySequence__qwqHTkRvwhrRyENtudHQ7g* TM__SRd76hP9cMfCzdUO857UhQQ_3 = ((tySequence__qwqHTkRvwhrRyENtudHQ7g*)&TM__SRd76hP9cMfCzdUO857UhQQ_4);
static N_INLINE(void, nimFrame)(TFrame* s) {
	NI T1_;
	T1_ = (NI)0;
	{
		if (!(framePtr__HRfVMH3jYeBJz6Q6X9b6Ptw == NIM_NIL)) goto LA4_;
		T1_ = ((NI) 0);
	}
	goto LA2_;
	LA4_: ;
	{
		T1_ = ((NI) ((NI16)((*framePtr__HRfVMH3jYeBJz6Q6X9b6Ptw).calldepth + ((NI16) 1))));
	}
	LA2_: ;
	(*s).calldepth = ((NI16) (T1_));
	(*s).prev = framePtr__HRfVMH3jYeBJz6Q6X9b6Ptw;
	framePtr__HRfVMH3jYeBJz6Q6X9b6Ptw = s;
	{
		if (!((*s).calldepth == ((NI16) (((NI) 2000))))) goto LA9_;
		callDepthLimitReached__mMRdr4sgmnykA9aWeM9aDZlw();
	}
	LA9_: ;
}
static N_INLINE(void, popFrame)(void) {
	framePtr__HRfVMH3jYeBJz6Q6X9b6Ptw = (*framePtr__HRfVMH3jYeBJz6Q6X9b6Ptw).prev;
}
N_LIB_PRIVATE N_NIMCALL(NI, f__CCfxCXjCNM5hZm6C45d88w)(NI* a, NI aLen_0, NI i) {
	NI result;
	nimfr_("f", "/home/runner/work/Nim/Nim/temp.nim");
	result = (NI)0;
	result = ((NI) 0);
	popFrame();
	return result;
}
static N_INLINE(NI, chckRange)(NI i, NI a, NI b) {
	NI result;
{	result = (NI)0;
	{
		NIM_BOOL T3_;
		T3_ = (NIM_BOOL)0;
		T3_ = (a <= i);
		if (!(T3_)) goto LA4_;
		T3_ = (i <= b);
		LA4_: ;
		if (!T3_) goto LA5_;
		result = i;
		goto BeforeRet_;
	}
	goto LA1_;
	LA5_: ;
	{
		raiseRangeError(((NI64) (i)));
	}
	LA1_: ;
	}BeforeRet_: ;
	return result;
}
N_LIB_PRIVATE N_NIMCALL(NI, x__sDAdEN6A6hAeEkY9cwXT3Ng)(tySequence__qwqHTkRvwhrRyENtudHQ7g* a, NI i) {
	NI result;
	nimfr_("x", "/home/runner/work/Nim/Nim/temp.nim");
	result = (NI)0;
	result = ((NI) 0);
	popFrame();
	return result;
}
static N_INLINE(void, initStackBottomWith)(void* locals) {
	nimGC_setStackBottom(locals);
}
void PreMainInner(void) {
}
int cmdCount;
char** cmdLine;
char** gEnv;
void PreMain(void) {
	void (*volatile inner)(void);
	inner = PreMainInner;
	systemDatInit000();
	initStackBottomWith((void *)&inner);
	systemInit000();
	(*inner)();
}
N_CDECL(void, NimMainInner)(void) {
	NimMainModule();
}
N_CDECL(void, NimMain)(void) {
	void (*volatile inner)(void);
	PreMain();
	inner = NimMainInner;
	initStackBottomWith((void *)&inner);
	(*inner)();
}
int main(int argc, char** args, char** env) {
	cmdLine = args;
	cmdCount = argc;
	gEnv = env;
	NimMain();
	return nim_program_result;
}
N_LIB_PRIVATE N_NIMCALL(void, NimMainModule)(void) {
{
	NI T1_;
	NI T2_;
	NI T3_;
	nimfr_("temp", "/home/runner/work/Nim/Nim/temp.nim");
	T1_ = (NI)0;
	T1_ = f__CCfxCXjCNM5hZm6C45d88w(TM__SRd76hP9cMfCzdUO857UhQQ_2, 1, ((NI)chckRange((aLen_0-1), ((NI) 0), ((NI) IL64(9223372036854775807)))));
	(void)(T1_);
	T2_ = ((a ? a->Sup.len : 0)-1);
	T3_ = (NI)0;
	T3_ = x__sDAdEN6A6hAeEkY9cwXT3Ng(TM__SRd76hP9cMfCzdUO857UhQQ_3, ((NI)chckRange(T2_, ((NI) 0), ((NI) IL64(9223372036854775807)))));
	(void)(T3_);
	popFrame();
}
}

AST

nnkStmtList.newTree(
  nnkFuncDef.newTree(
    newIdentNode("f"),
    newEmptyNode(),
    newEmptyNode(),
    nnkFormalParams.newTree(
      newIdentNode("int"),
      nnkIdentDefs.newTree(
        newIdentNode("a"),
        nnkBracketExpr.newTree(
          newIdentNode("openArray"),
          newIdentNode("int")
        ),
        newEmptyNode()
      ),
      nnkIdentDefs.newTree(
        newIdentNode("i"),
        newIdentNode("Natural"),
        nnkDotExpr.newTree(
          newIdentNode("a"),
          newIdentNode("high")
        )
      )
    ),
    newEmptyNode(),
    newEmptyNode(),
    nnkStmtList.newTree(
      newLit(0)
    )
  ),
  nnkDiscardStmt.newTree(
    nnkCall.newTree(
      newIdentNode("f"),
      nnkBracket.newTree(
        newLit(0)
      )
    )
  ),
  nnkFuncDef.newTree(
    newIdentNode("x"),
    newEmptyNode(),
    newEmptyNode(),
    nnkFormalParams.newTree(
      newIdentNode("int"),
      nnkIdentDefs.newTree(
        newIdentNode("a"),
        nnkBracketExpr.newTree(
          newIdentNode("seq"),
          newIdentNode("int")
        ),
        newEmptyNode()
      ),
      nnkIdentDefs.newTree(
        newIdentNode("i"),
        newIdentNode("Natural"),
        nnkDotExpr.newTree(
          newIdentNode("a"),
          newIdentNode("high")
        )
      )
    ),
    newEmptyNode(),
    newEmptyNode(),
    nnkStmtList.newTree(
      newLit(0)
    )
  ),
  nnkDiscardStmt.newTree(
    nnkCall.newTree(
      newIdentNode("x"),
      nnkPrefix.newTree(
        newIdentNode("@"),
        nnkBracket.newTree(
          newLit(0)
        )
      )
    )
  )
)

🤖 Bug found in 47 minutes bisecting 6 commits at 0 commits per second.

[juancarlospaco]

Its not about Generics nor openArray, its about using the high of the 1st argument and Natural.

[metagn]

Works now, maybe because of #24006?