From 572fd95692d599842a1e14de387ba962c0646f53 Mon Sep 17 00:00:00 2001
From: UnlegitDqrk <finn.abadi@outlook.de>
Date: Mon, 2 Mar 2026 13:31:34 +0100
Subject: [PATCH] Fixed issue: #86

---
 .../luaj/vm2/libs/DebugLib$CallFrame.class    | Bin 3118 -> 3118 bytes
 .../luaj/vm2/libs/DebugLib$CallStack.class    | Bin 5834 -> 5834 bytes
 .../luaj/vm2/libs/DebugLib$DebugInfo.class    | Bin 1519 -> 1519 bytes
 .../org/luaj/vm2/libs/DebugLib$NameWhat.class | Bin 449 -> 449 bytes
 .../org/luaj/vm2/libs/DebugLib$getinfo.class  | Bin 3928 -> 3994 bytes
 .../org/luaj/vm2/libs/DebugLib$getlocal.class | Bin 1465 -> 1465 bytes
 .../luaj/vm2/libs/DebugLib$getmetatable.class | Bin 589 -> 589 bytes
 .../luaj/vm2/libs/DebugLib$getregistry.class  | Bin 682 -> 682 bytes
 .../luaj/vm2/libs/DebugLib$getupvalue.class   | Bin 1050 -> 1050 bytes
 .../luaj/vm2/libs/DebugLib$getuservalue.class | Bin 569 -> 569 bytes
 .../org/luaj/vm2/libs/DebugLib$sethook.class  | Bin 1768 -> 1768 bytes
 .../org/luaj/vm2/libs/DebugLib$setlocal.class | Bin 1579 -> 1579 bytes
 .../luaj/vm2/libs/DebugLib$setmetatable.class | Bin 1062 -> 1062 bytes
 .../luaj/vm2/libs/DebugLib$setupvalue.class   | Bin 1019 -> 1019 bytes
 .../luaj/vm2/libs/DebugLib$setuservalue.class | Bin 892 -> 892 bytes
 .../luaj/vm2/libs/DebugLib$traceback.class    | Bin 1883 -> 1883 bytes
 .../luaj/vm2/libs/DebugLib$upvalueid.class    | Bin 903 -> 903 bytes
 .../luaj/vm2/libs/DebugLib$upvaluejoin.class  | Bin 925 -> 925 bytes
 .../java/org/luaj/vm2/libs/DebugLib.class     | Bin 10888 -> 10985 bytes
 .../main/java/org/luaj/vm2/libs/DebugLib.java |  16 +++++++++----
 .../test/java/org/luaj/vm2/FragmentsTest.java |  22 ++++++++++++++++++
 21 files changed, 34 insertions(+), 4 deletions(-)

diff --git a/core/src/main/java/org/luaj/vm2/libs/DebugLib$CallFrame.class b/core/src/main/java/org/luaj/vm2/libs/DebugLib$CallFrame.class
index 0f0f9fd73814ee376e3f773aadabc0be45b4b34b..c1b30b492c5721faf7f7aad0d3acea6c1f144380 100644
GIT binary patch
delta 173
zcmZ1{u})%xFbCu5$s!!4yq6hRnXWK!F<oWgXSy~yjKhiX#^jkC7Ob~{;&&!r1FE<O
zWZeg<cmP!KaIyrakLY8d$P=K*Q=rH*22rNx3~Ed-CRcK1@V;VTV|vXX&-8}DjOpFv
zcbo-+AAusDfFhq6G?>0Hm@s{toX=Ir`HO*v={JKE)1S#Nxe{3aGYBy=O!njUWMXEX
TJd@jxjhT&shnaoyTW&`HW>7LU

delta 173
zcmZ1{u})%xFbCt|$s!!4yr&shna(h9F`Z@LXF4}IjKhiX!sMA87Oa<n;#VeL1FE<N
zWL*cUxB*mgbFu`dkLYcn$Q_`_U7*N422rN_3~EddCRcK1@IGQ-V|vUW&-8@BjOp3r
zcbo-+FM%SjfFiFMG??Bnm@vJYoX=Ir`H6vt=`({A)0fFFxe{2vGYB#LnC!>x$;9+~
T@=R_&Hl}|-`TvvOaytS5Jr^|@

diff --git a/core/src/main/java/org/luaj/vm2/libs/DebugLib$CallStack.class b/core/src/main/java/org/luaj/vm2/libs/DebugLib$CallStack.class
index cf3ca53da8054013ab6dc7f2a36ee728881e76ca..d2113fbbde401f25442ac9860c399f63242e2250 100644
GIT binary patch
delta 633
zcmWNNT}abm6vm(TAzCt<I+;3k*^*U$Oal>ZWtNjZYzqr2EnA;9EJOQHu(WwmrWjQG
z?YqphkOkFhP<dlPQQ%EcHzh<@fmcCyU3k%R^?P5=a}K|AX8be$L^w6Wjs>*A&P7OP
z3i4>TBB@cA11U^LA)P1{%fxDCTC=G?H)N~ghKsqX=3yoCQAH2xxC9|_2Me&9OA(<L
zZDI!t(N7<S#9{FUms|f9ce#r-r4$(~LoUnV5m$&sTxAV7I^7kjRw9#C$Y(VQ#A4CU
zfR&ck?Ws|<R<`S9P$$12%Ei^<8rECmX)(_xCAKKh053!84XZb#4Z=!nORh^VF|l2W
zG)bTtIotyu_i9iJD!C7989|Wyv7HCd#Di$%A++-_x_JcW*@}xiiYtubHrp`9V~F!O
z5^Tp5Pv9Lp@SdHR;YobvX?z!F#os)GuK<c*n@5ffTdlc_d%hkyoI@6S<q(r<uNLal
zGBK(4At2VX--<gY{1=oQ&_OQAbWo<lG9A?62T;Qy)at)kY!G+ya<V5gX=2yZV!_D~
zEaP=8a1*C^3thZ}tGo+~_c6**O!5Je9K$pp;tR*|jT896NBG6ZlAgpI<M_iT_{*o5
z=QESS=f=r|$>s~=<x5k-SEhomO@MDqkke)(M@)zxOrwJzO|u>?Vw9h(Dc4(ap>;N^
F@jsNYfs+6L

delta 633
zcmWNNT}abm6vm(TF*0*GH{0B@6<VgYmQjc{Em5aLSxn2+GNTV!lF*mair5x?fM_WF
z$+GOrD6@+a27wS7bhn$LZc2!*0<VJZx{&I*`n@mbIfvglsX!_)z1QYQ!xHlknFO+F
zkjFHu(-v_pMFy8)9hYO1xLK@VrZsQ-USn6q0T-RB=Af7>QBD_X=|-d2%v`k6gHC$U
zEuLW>67*p}927^n#`?1&>MhWe^>A<lR<Q^^u}Caov2`=+tk<t<068qhYHq<=aibXE
zR?BYh^OdPuF53zj1m#zWQgORj$tr8Y9`{u%QKLjH@)=TZy?R61pk9fF<j!oriSJV+
zEP*C?*o;E%*PsI^V+*Qy5Or)t6Wh?nc69L&dUzOp>_Ci1aD$x~=249C7@qJrrg#F=
zJc${0;XNbxz*9)E8y|TZU&VRxCwuT2Knc<p;Yr6HYr!#Icuo!%;AXEJ`lZ^dg`!%f
zU#d|A#SkxAQ_g3BD@w+6khn|}GQB3#gbp9W4qipI{=3B8VhgV)FXbdnd_XOOaB>I*
zyrl((ah@ZH@-{|j!Qve};wUD07fIg3EXVMP_wj`f@Qvg6!H1H5j0HZ$FHYb$pJS0P
zOa>>7lP^s!r%XOy89!f}ZG2;boHliQYZ^FY8u`wIvp8$o_2>{IoU>+Jb2NXg%kJ=h
DWH^5T

diff --git a/core/src/main/java/org/luaj/vm2/libs/DebugLib$DebugInfo.class b/core/src/main/java/org/luaj/vm2/libs/DebugLib$DebugInfo.class
index 37476d237b4363a787e91710771d9e4613a71382..f95bc55805d8063cda25ff40da41b3a1b4510c0b 100644
GIT binary patch
delta 71
zcmV-N0J#6}3-1fCsRRM!ld1%lHS_=n0rdb60rmhU0rvnd0r&tm0r>z(0r~(?0s8<`
d0sH`20sR180sa7E0sjDL0ssJU0s@nE1$l_`7YzUa

delta 71
zcmV-N0J#6}3-1fCsRRMsld1%lHS7Qf0qp<}0qy`M0q+1V0q_7e0r3Dx0rCJ)0rLP;
d0rUV_0rdc00rmi60rvoD0r&uM0s5161$l>C7?S`1

diff --git a/core/src/main/java/org/luaj/vm2/libs/DebugLib$NameWhat.class b/core/src/main/java/org/luaj/vm2/libs/DebugLib$NameWhat.class
index fbabae78bfdd557fb8121b0d32cff8aefbb49193..922dc7557c39eec2701d60cc69e4150a844658ae 100644
GIT binary patch
delta 25
gcmX@ee2{s=Bt~8t1{P*n22N%<20mu_$@3YN07^~-$N&HU

delta 25
gcmX@ee2{s=Bt~8l1{P*f22N%%20mu-$@3YN07&ixr~m)}

diff --git a/core/src/main/java/org/luaj/vm2/libs/DebugLib$getinfo.class b/core/src/main/java/org/luaj/vm2/libs/DebugLib$getinfo.class
index 59925f4520cccc95dfafce5bcdb9c8bf88a1151a..a1f43ab19da033bb7e085e78ffd3e0f7eb75ac99 100644
GIT binary patch
delta 291
zcmWN^y-Nad9DwoXdmaAnx)cO2Fv?bOs3k-MLt3h(2!f`DmIxf$TBEHc8V({H8)}kX
zB<-Ev3!@iGdNF#j>>r4Rkid>-c|MP!bn8mgs@KElctHy|Nvpf5BdF&{L=D?W(;#sb
ziR()=2R*itowatPZjW}S&)YKD&nkngF+`SO))^&7iag_NFu@j6Y%{|ya~!b9A<G=G
z$+6oBMNX-3#t-MBQxG2)65>+ATuF>;>ET93xRn%lGEGtDxt9eVB*T;BDak(115)5c
zO1w&iH~Dt|m$Ihup(#E!KVQ6qbYlNuORu6_BY~+f6ajImh$+StT?o|hV>(G+qv@iG
Lr;3)1_}b(jBo0j=

delta 225
zcmWN{J4iwS0EW@;S1a>s4w2xHLQqT4=q9*@Q%j3O;N}vzwK%jyb8wxChK6X9>Q)Nb
z6GaP)G($rpZE%*LB?NUl!`Tlu1E(RwW$)p@12&r(F;<-m{z<>%im-KL<YmvWY{otF
z+v}VW<D3mF5?qkvk`!5XxF$`WLvA?Xc0BHQ<enN2{EYQWfdNIiDal7!OFSvWv(~66
z#*4Oi)h=(^qpAbmbxd6uK9r-OGELR^RENf*dbHH1tv|jr<eLsC!0doIMW^Tv3F9>7
N^-aJ()7Iw9ibf}0L_Poj

diff --git a/core/src/main/java/org/luaj/vm2/libs/DebugLib$getlocal.class b/core/src/main/java/org/luaj/vm2/libs/DebugLib$getlocal.class
index 5581bc5cc0ef426cf3e16ac303055857ed3be5cf..ceccb23b295f62890f4050addad887085da6b74f 100644
GIT binary patch
delta 39
vcmdnVy_0*xK^DeWlMk`9iN0ZAVtC7-!0?Vii{U+k3Bv~lXNHfHV_9PWAyo~C

delta 39
vcmdnVy_0*xK^Dd*lMk`9i9TasVtCG=!0>`Wi{T}M3BxM}XNK34V_9PW9)As9

diff --git a/core/src/main/java/org/luaj/vm2/libs/DebugLib$getmetatable.class b/core/src/main/java/org/luaj/vm2/libs/DebugLib$getmetatable.class
index ad0bb2a7e2da17f602ce9eeb410b73c90d391502..6b82319b86b2bbc46b6a24f83b36d801dd51cb5e 100644
GIT binary patch
delta 23
fcmX@ha+YPoT}H-llkYK_vHoCSW%xN+lF0-Bb%zM8

delta 23
fcmX@ha+YPoT}H+alkYK_v3_D;W%xW<lF0-BblC`-

diff --git a/core/src/main/java/org/luaj/vm2/libs/DebugLib$getregistry.class b/core/src/main/java/org/luaj/vm2/libs/DebugLib$getregistry.class
index a875b0af416865ad195beaddcc22074257888862..a6af9ca2a513ce7f4da3bdd0b9f5474238619e5b 100644
GIT binary patch
delta 20
bcmZ3*x{7s!9~0xh$^J~{OpFYZJD8LJMD_){

delta 20
ccmZ3*x{7s!9~0w`$^J~{Obov!cQ7dd07;4lt^fc4

diff --git a/core/src/main/java/org/luaj/vm2/libs/DebugLib$getupvalue.class b/core/src/main/java/org/luaj/vm2/libs/DebugLib$getupvalue.class
index 74efd4755fb51c0831704b9ff4c92ec42613cd7a..1c0c60a946daeece9d6ac5c510492b67fc8efd03 100644
GIT binary patch
delta 48
zcmbQmF^gkECNmQw>*Q?aL|JwQHbxEx9!5?EVMZ<nNk(o4MMfS5HAY?r3r2y-FPRMi
Dx(x=h

delta 48
zcmbQmF^gkECNmSm|H;|RiL#6gY>Z3{JdDf?!i+2ol8mejii~UwYK-g*7K~hzUosm4
E0NiT_djJ3c

diff --git a/core/src/main/java/org/luaj/vm2/libs/DebugLib$getuservalue.class b/core/src/main/java/org/luaj/vm2/libs/DebugLib$getuservalue.class
index 1a01d921e1378c668e96e9b2349cb23bab0fdd14..de567cd2b4b3221920ec015b0e7cff6b8bd34037 100644
GIT binary patch
delta 19
bcmdnVvXf=Q6-GwU$yXUo7{w=ZG3f&ULrevk

delta 19
bcmdnVvXf=Q6-Gw>$yXUo7zHPDG3f&ULhJ>N

diff --git a/core/src/main/java/org/luaj/vm2/libs/DebugLib$sethook.class b/core/src/main/java/org/luaj/vm2/libs/DebugLib$sethook.class
index 205e7137897b880a45405dcd8b7942292cab56b4..cea02ea06f8325f0abe399b935ca4b1a4e5b787f 100644
GIT binary patch
delta 91
zcmaFC`+|3aKP#i`<N(%Bp7IP#j0y}2jEW4}j7kjVjLHm7j4BM?jH(O~jA{%GjOq++
uj2a9*jG7GnK(VQe+6=Q9br=>g>N2ck)MMDdsL!yS(STteqv7Okwpai!eG%XQ

delta 91
zcmaFC`+|3aKP#j7<N(%Bo{|hqj8Y5=jM5C+j4}-7jIs<)jB*U#jPeW-j0y}5jEW3x
uj7khWjLHoCK(VQestmIk)fg5rsxz!))L_`asL8OMQHx<8qxR%(wpaigNfBrO

diff --git a/core/src/main/java/org/luaj/vm2/libs/DebugLib$setlocal.class b/core/src/main/java/org/luaj/vm2/libs/DebugLib$setlocal.class
index b19b2c6103b11dd355cec1f5bbf48dbf6658ea9e..f4c70abca8d8b3cb1a5de473616bd11a60a86906 100644
GIT binary patch
delta 43
zcmZ3@vzljv0xP50WJT6Vk`@e1jFt=vj8+U<jMfY$j5Z8*jJ6EEjCPaHu*L%bzibFl

delta 43
zcmZ3@vzljv0xP4zWJT6Vl12<njK&NKj3x|PjHV1GjAjgWjOGl!j24s6u*L%byU++A

diff --git a/core/src/main/java/org/luaj/vm2/libs/DebugLib$setmetatable.class b/core/src/main/java/org/luaj/vm2/libs/DebugLib$setmetatable.class
index ea5285275d714e6676df507087802ac1b569cc88..361a4cb9ccd410fd788f40f326cb0d43a55a8978 100644
GIT binary patch
delta 55
zcmZ3+v5aGb88f5vWOL@ps;&%djBX4zjP4B1j2;YLjGhdEj9v^8jNT0Kj6Mu$jJ^yx
LjQ*3~Gn)edLPZN*

delta 55
zcmZ3+v5aGb88f5pWOL@ps`d<Qj1CMojE)S>j7|(*jLr;!j4lijjIIpvjBX5RjP49M
LjGmL<Gn)edJI4zf

diff --git a/core/src/main/java/org/luaj/vm2/libs/DebugLib$setupvalue.class b/core/src/main/java/org/luaj/vm2/libs/DebugLib$setupvalue.class
index 628adb3a3516b958f74231d4f0edf7c44f378d3b..bc72984371ff911a23598e40b5534bf6fde4e69a 100644
GIT binary patch
delta 55
zcmey({+oS+6*FVVWNYSh)i4G&#&8B6#s~&s#z+P!#wZ2_#%Kl&#ux@&##jbx#yAE$
K#>C0TnN0vvP73w_

delta 55
zcmey({+oS+6*HsXWNYSh)c^)I#y|!h#vle^#$X01#t;St#!v<g#xMq5#&8B}#s~&G
K#^}k%nN0vo&<eBw

diff --git a/core/src/main/java/org/luaj/vm2/libs/DebugLib$setuservalue.class b/core/src/main/java/org/luaj/vm2/libs/DebugLib$setuservalue.class
index 7662e64e60483e919ea7cf9f4471e3cbb023f527..8065b18083a809f7abf49faec7dc9f878cff3950 100644
GIT binary patch
delta 39
vcmeyv_J?i57beEE$zPcQL^BxJ7&94o7_%5e8M7JW7;_lZ8FME`F)IN8_oE5}

delta 39
vcmeyv_J?i57beDp$zPcQM3WfU7?T-z7*iNT8B-bL7}FTk8Pg|6F)IN8^vwy`

diff --git a/core/src/main/java/org/luaj/vm2/libs/DebugLib$traceback.class b/core/src/main/java/org/luaj/vm2/libs/DebugLib$traceback.class
index bffeffaebd0b1a9dae3fe327787e582673d88956..409adba565295df227f54d04f18b715604e56536 100644
GIT binary patch
delta 39
ucmcc3cbjj6FB@agWIwhZ(GmtG#!?0a#xe$N#&QNT#tH^k#>&a>*>V8dRSH=E

delta 39
ucmcc3cbjj6FB@adWIwhZ(L4qw#(V|^#sUUy#zF=&#v%q+#^TBE*>V8ae+n-E

diff --git a/core/src/main/java/org/luaj/vm2/libs/DebugLib$upvalueid.class b/core/src/main/java/org/luaj/vm2/libs/DebugLib$upvalueid.class
index c38266a98ca19c82e4bb09f16c831e58c9cc6597..7df095f82d60bbdb922c0b4029e8c23900d3fe64 100644
GIT binary patch
delta 43
ycmZo?Z)e|dg^96l@>Qk`$p!{C#zqDn#wG?~#%2ad#uf&B##RP<#*WEh%!U90Eedl0

delta 43
ycmZo?Z)e|dg^96Z@>Qk`$tngm#%cy0#u^4;###nR#ySRl#(D;O#-_<(%!UB|f(k<b

diff --git a/core/src/main/java/org/luaj/vm2/libs/DebugLib$upvaluejoin.class b/core/src/main/java/org/luaj/vm2/libs/DebugLib$upvaluejoin.class
index 74e22acfbf2dba53937f450b579beddc89edd010..369c497d5a22686a37896a69746421fa281f3288 100644
GIT binary patch
delta 55
zcmV-70LcHH2b~A7vjPE)le7YYC653G0gwO;0g(U`0g?b30h0hI0h9nQ0hIti0hRzq
N0ha(-0hp6p145g@4WR%4

delta 55
zcmbQsK9_yNW+uk=$y=D3R67~i7`qsF7`qvS8G9I{7<(Bs82cFX8T%O=7$-2eGfrfP
LWSlfPn%M~el|v0*

diff --git a/core/src/main/java/org/luaj/vm2/libs/DebugLib.class b/core/src/main/java/org/luaj/vm2/libs/DebugLib.class
index f0f1615a06c87890fb299e2f60babee6d1ae1212..d34529b368fcad74e28ab592dbe8baff639d4750 100644
GIT binary patch
delta 4941
zcmZ8l34B!5x&Qw6Omc4~CzIteAv<9UNg#x>1PBB&Nd^cc6SA=>gfST)5E5P%q!u0f
zYU|PpwHMn$MG(c*)&+(TP%7Bk2d|}-wsx`4wu+Wg>#j&EW$AZLBE<Lmk^Al6`L^@j
zJKWRwR-^mpSD!mhM1CW5(7nuU$2G4DHE&qc)85?O+R+Zm$jx(B#ihrPMQ=!Ylm6<g
zcGqY84dm_UTwB=I6I@@odE?~5s-B>~v$Lbqq`y07+#{@W^bbi<^tN-+JtF2^Ne|F_
zpi<{UGsP*2oe=$j;(X|=i_M6=K%ba&QPMx@U(WVepLKyQN%}Wkc3z1c>A6bROppX%
zfRdfpW0RdsnHS?il!<5w)2Wd;t{4fo^F^5zD-mbHBk45aoqclQs6<dAN7xkX>I!vs
zXRisiwuM^UbRIUxhGCq8lQ?XcXGsi_G2BFoL@LspNpTB38OSt|B{71wf>NBOxD;n^
zoChPFXX0|L42+f-gR#zQae3ZxAlJg+=Aawd$Ww0fLF3r1?M(6{v+4wi0!(xQp2A7V
zm?ZH9It(&4HOJ6ZOp%z1Y3!i6qb0=Ln=0Lyju|FqN)%(3^OPqqb2>^S=3o}cn(uG$
z)y;46xygf42_MRwk3IF_3XmsvO-E;TYj>zK*xk{YXJH;F?sGiu9~MYd(jHJ$WuU^p
zOmP-TR4I-X@Grg23`o={rs1zuI<*pYiWI(z3Pm?aG-|rOu}sn7r4q|Dqq?z5F;+<2
zr0I&vC5m1tu}aad%0b3ziJ)eb`2yNyvqX!wD66Sc7HcHd4k#=eV6;lC*9!Fu^bu_m
z8wcsSu(Ifo*rXZNHQHmRM3<%)*DO`?9*NDGZVXf_dW*yt740eu)HEo@mn61og(`nQ
z(RWCM6>U^$@s}n3dw}#S>0J_ERb+H|O<+p7ufYw8yCv?ySWrxN$NH}B&ery|7VZPN
zH-@@{{I{-yC+{l0A#p#pITsTq+27<&v~@HG+f+ZlCE;L)Gc&QUVmiJp@tvU^FH>W&
zQ)1UpW_b*oJtVPP1rk+T?W<d)9PN?Vi$|O%6HAgGm3T}Eg+H)FMfkWxFTU?wOUzmJ
z1CD)dTgNTIHVaR(`I^>HTZ@IKL1xdU&B3;wkUH{!#6fjr%;4meZBg7q5`9CtzAb8&
z`z4OxsB?SL==A3#j;VWNwRQ~@!p$XnUg9`TILDImYk$n5=8pER?qGYjg%>%L!TPZC
z|B*O}Qyg<;{UUBpZe`vIb>`0`ey+}p)>F!fTDUugZ`>~>Ucwot$Q~8@Yy8H<%M!oE
z@0@14s39AF;01v*7XAprT;=6ei9abX?!kPz1`_&<#B1uznC?(lx38M-qJ^_ulyYBH
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diff --git a/core/src/main/java/org/luaj/vm2/libs/DebugLib.java b/core/src/main/java/org/luaj/vm2/libs/DebugLib.java
index 3be24b01..29b37373 100644
--- a/core/src/main/java/org/luaj/vm2/libs/DebugLib.java
+++ b/core/src/main/java/org/luaj/vm2/libs/DebugLib.java
@@ -173,10 +173,16 @@ public class DebugLib extends TwoArgFunction {
 			// find the stack info
 			DebugLib.CallFrame frame;
 			if ( func.isnumber() ) {
-				frame = callstack.getCallFrame(func.toint());
-				if (frame == null)
-					return NONE;
-				func = frame.f;
+				int level = func.toint();
+				if (level == 0) {
+					frame = null;
+					func = this;
+				} else {
+					frame = callstack.getCallFrame(level);
+					if (frame == null)
+						return NONE;
+					func = frame.f;
+				}
 			} else if ( func.isfunction() ) {
 				frame = callstack.findCallFrame(func);
 			} else {
@@ -453,12 +459,14 @@ public class DebugLib extends TwoArgFunction {
 		if (s.inhook || s.hookfunc == null) return;
 		s.inhook = true;
 		try {
+			callstack().onCall(s.hookfunc.checkfunction());
 			s.hookfunc.call(type, arg);
 		} catch (LuaError e) {
 			throw e;
 		} catch (RuntimeException e) {
 			throw new LuaError(e);
 		} finally {
+			callstack().onReturn();
 			s.inhook = false;
 		}
 	}
diff --git a/jse/src/test/java/org/luaj/vm2/FragmentsTest.java b/jse/src/test/java/org/luaj/vm2/FragmentsTest.java
index 202204e1..50db64fd 100644
--- a/jse/src/test/java/org/luaj/vm2/FragmentsTest.java
+++ b/jse/src/test/java/org/luaj/vm2/FragmentsTest.java
@@ -140,6 +140,28 @@ public class FragmentsTest extends TestSuite {
 				"return sum\n");
 		}
 
+		public void testDebugGetInfoLevelZeroReturnsGetInfoFunction() {
+			runFragment(
+				LuaValue.TRUE,
+				"return debug.getinfo(0, 'f').func == debug.getinfo\n");
+		}
+
+		public void testDebugGetInfoInsideHookSeesHookFunction() {
+			runFragment(
+				LuaValue.TRUE,
+				"local ok = false\n" +
+				"local hook\n" +
+				"hook = function()\n" +
+				"  local info = debug.getinfo(1, 'f')\n" +
+				"  ok = info ~= nil and info.func == hook\n" +
+				"  debug.sethook()\n" +
+				"end\n" +
+				"debug.sethook(hook, 'c')\n" +
+				"local function foo() end\n" +
+				"foo()\n" +
+				"return ok\n");
+		}
+
 		public void testLongIntegerLiteralPrecision() {
 			runFragment(
 				LuaValue.varargsOf(new LuaValue[] {