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FujoJTOP

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loment
Loment — a systems programming language. Compiles to native x86-64 (Linux ELF, Windows PE, or freestanding for bare metal) with no runtim...

Rust · 5 stars

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Unbounded recursion dies with a bare SIGSEGV: no stack probe and no overflow diagnostic (the road Rust walked before rust-lang/rust#16012)
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bug frontend selfhost sev-4

Difficulty 5/5 Over a week Newbie friendliness 42/100

FujoJTOP/loment#995 · Opened Oct 19, 2026
One 200-character package name makes lompi refuse the whole store with 'could not be hashed (see the guide's limits)' — a limit no guide states, while the Python side hashes it
Open
- Is something wrong?
bug lompi selfhost sev-3

Difficulty 4/5 1-2 days Newbie friendliness 74/100

FujoJTOP/loment#992 · Opened Oct 19, 2026
lompi indexes at most 512 packages per store and silently drops the rest: a package that exists is reported as 'no such package in store'
Open
- Is something wrong?
bug lompi selfhost sev-3

Difficulty 3/5 1-2 days Newbie friendliness 72/100

FujoJTOP/loment#991 · Opened Oct 19, 2026
lomeol stops reading git's listing at 2 MiB and reports the tree clean: files after the cut are never checked and there is no truncation diagnostic
Open
- Is something wrong?
bug ci selfhost sev-6

Difficulty 2/5 1-3 hours Newbie friendliness 78/100

FujoJTOP/loment#990 · Opened Oct 19, 2026
loment_register_test silently passes when the linker fails: it prints (跳过: …) which the suite runner does not recognise as a skip
Open
- Is something wrong?
bug ci sev-6

Difficulty 2/5 1-3 hours Newbie friendliness 75/100

FujoJTOP/loment#989 · Opened Oct 19, 2026
The capacity ratchet is blind to literal bounds: loment_caps --frontend reports 缺口 0 while codegen has four silent literal caps (sn<64, nf<8, cn<64, arms<12)
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- Is something wrong?
bug ci selfhost sev-6

Difficulty 3/5 1-2 days Newbie friendliness 56/100

FujoJTOP/loment#988 · Opened Oct 19, 2026
The language server silently stops indexing after 256 symbols per document: sym_add returns 0 on a full table and both callers ignore it
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- Is something wrong?
bug lsp sev-2

Difficulty 3/5 1-2 days Newbie friendliness 67/100

FujoJTOP/loment#987 · Opened Oct 19, 2026
lomlib scans only the first 16 KiB of each source file for use edges: a dependency on line 1000 is invisible, the closure shrinks and the identity diverges from the Python implementation
Open
- Is something wrong?
bug lompi selfhost sev-6

Difficulty 3/5 1-2 days Newbie friendliness 75/100

FujoJTOP/loment#986 · Opened Oct 19, 2026
lomcapasserts reads at most 128 form objects and silently drops the rest: 129 valid objects yield 128 assertions and exit 0
Open
- Is something wrong?
bug ci selfhost sev-6

Difficulty 3/5 1-2 days Newbie friendliness 66/100

FujoJTOP/loment#985 · Opened Oct 19, 2026
lompotc accepts a Loment source as grammar c and emits a lossy Potato object (one variant, no functions) where the reference refuses it
Open
- Is something wrong?
bug cli selfhost sev-5

Difficulty 3/5 1-2 days Newbie friendliness 74/100

FujoJTOP/loment#984 · Opened Oct 19, 2026
(ptr expr) as u64 emits zext i32 in the self-host driver: the address is truncated to 32 bits (docs/158 §4 item 8, unfiled)
Open
- Is something wrong?
bug frontend selfhost sev-5

Difficulty 3/5 1-2 days Newbie friendliness 68/100

FujoJTOP/loment#983 · Opened Oct 19, 2026
A parameter named fn desynchronises the self-host checker: valid unit rejected with E2 pointing at an unrelated line (docs/158 §4 item 12, unfiled)
Open
- Is something wrong?
bug frontend selfhost sev-3

Difficulty 4/5 1-2 days Newbie friendliness 67/100

FujoJTOP/loment#982 · Opened Oct 19, 2026
lompi fetch writes attacker-chosen paths outside the cache: the registry index's name/version fields are concatenated into the destination with no validation (arbitrary file write in the toolchain's own directory)
Open
- Is something wrong?
bug lompi security sev-9

Difficulty 4/5 3-5 days Newbie friendliness 58/100

FujoJTOP/loment#981 · Opened Oct 19, 2026
Dependency confusion against the standard library: a package named std materialises into deps/std and shadows every use std, and lompi reserves no names
Open
- Is something wrong?
bug lompi security sev-9

Difficulty 5/5 Over a week Newbie friendliness 35/100

FujoJTOP/loment#980 · Opened Oct 19, 2026
The genesis ELF — the bootstrap chain's root of trust — is never rebuilt by any criterion: its reproducibility is asserted in docs and only hash-self-checked in CI
Open
- Is something wrong?
bug ci security sev-8

Difficulty 4/5 3-5 days Newbie friendliness 55/100

FujoJTOP/loment#979 · Opened Oct 19, 2026
The POSIX installer silently installs unverified when sha256sum is missing, although the docs promise it always checks SHA256SUMS before writing
Open
- Is something wrong?
bug cli security sev-6

Difficulty 2/5 1-3 hours Newbie friendliness 74/100

FujoJTOP/loment#978 · Opened Oct 19, 2026
lomlib refuses any dependency tree deeper than 16 with the misleading message 解析失败, while the Python implementation accepts it
Open
- Is something wrong?
bug lompi selfhost sev-3

Difficulty 3/5 1-2 days Newbie friendliness 72/100

FujoJTOP/loment#977 · Opened Oct 19, 2026
lomlib indexes at most 16 dependency edges per package: the 17th is neither hashed nor followed, and the Python and self-host identities diverge
Open
- Is something wrong?
bug lompi selfhost sev-6

Difficulty 4/5 1-2 days Newbie friendliness 45/100

FujoJTOP/loment#976 · Opened Oct 19, 2026
lomlib hashes at most 32 source files per package and silently ignores the rest: a 33-file package gets the wrong identity, and an ignored file can change without changing the hash
Open
- Is something wrong?
bug lompi selfhost sev-6

Difficulty 4/5 3-5 days Newbie friendliness 45/100

FujoJTOP/loment#975 · Opened Oct 19, 2026
loment doc silently stops at 1 MiB and emits a truncated API document with exit 0 (the lomdoc half of the read-cap pattern)
Open
- Is something wrong?
bug cli selfhost sev-5

Difficulty 3/5 1-2 days Newbie friendliness 68/100

FujoJTOP/loment#973 · Opened Oct 19, 2026
match on a local variable emits its payload binding without an alloca: %v.addr is undefined and the unit cannot be linked (a parameter subject works)
Open
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bug frontend selfhost sev-3

Difficulty 3/5 1-2 days Newbie friendliness 72/100

FujoJTOP/loment#972 · Opened Oct 19, 2026
str == str compiles in the self-host to icmp eq on {ptr,i64} and returns false for equal contents (the reference refuses the same program)
Open
- Is something wrong?
bug frontend selfhost sev-5

Difficulty 3/5 1-2 days Newbie friendliness 75/100

FujoJTOP/loment#971 · Opened Oct 19, 2026
A struct field of enum or struct type passes the self-host check and emits invalid IR (undefined label / field index past the aggregate), while the reference refuses it
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- Is something wrong?
bug frontend selfhost sev-3

Difficulty 4/5 3-5 days Newbie friendliness 42/100

FujoJTOP/loment#970 · Opened Oct 19, 2026
self-hosted checker: a function with ~35 locals is reported as a type mismatch at an unrelated token, while the reference accepts it
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- Is something wrong?
bug selfhost sev-3

Difficulty 4/5 1-2 days Newbie friendliness 56/100

FujoJTOP/loment#969 · Opened Oct 19, 2026
Four translation-equivalence suites never run on the Linux CI: nine tools still gate on a wsl binary that Ubuntu runners do not have (#371 was only fixed in 32 files)
Open
- Is something wrong?
bug ci sev-6

Difficulty 2/5 1-3 hours Newbie friendliness 73/100

FujoJTOP/loment#968 · Opened Oct 19, 2026
loment_genesis.py --emit refuses to run on Linux even with clang: the release-genesis tool still probes for a wsl binary
Open
- Is something wrong?
bug ci selfhost sev-3

Difficulty 2/5 1-3 hours Newbie friendliness 78/100

FujoJTOP/loment#967 · Opened Oct 19, 2026
A struct with 9 scalar fields is registered with only 8: a parameter of that type is emitted with 8 fields and the callee reads past it
Open
- Is something wrong?
bug frontend selfhost sev-5

Difficulty 2/5 1-3 hours Newbie friendliness 75/100

FujoJTOP/loment#966 · Opened Oct 19, 2026
if let binds its payload to an undeclared local: the self-host emits %v.addr with no alloca and lomelf refuses the unit
Open
- Is something wrong?
bug frontend selfhost sev-3

Difficulty 3/5 1-2 days Newbie friendliness 75/100

FujoJTOP/loment#965 · Opened Oct 19, 2026
Generic struct fields are loaded as i64 regardless of the instantiation: Pair<u32> compiles to ill-typed IR and returns the wrong value
Open
- Is something wrong?
bug frontend selfhost sev-5

Difficulty 4/5 3-5 days Newbie friendliness 52/100

FujoJTOP/loment#964 · Opened Oct 19, 2026
A unit with 65 capabilities is rejected by the self-host checker with E4 at the 7th declaration: the capability table is written with no capacity check
Open
- Is something wrong?
bug frontend selfhost sev-3

Difficulty 3/5 1-2 days Newbie friendliness 58/100

FujoJTOP/loment#962 · Opened Oct 19, 2026
A payload match with more than 12 arms is silently truncated to 12: the arm-label table is fixed at state offset 560 and the loop just stops
Open
- Is something wrong?
bug frontend selfhost sev-5

Difficulty 4/5 3-5 days Newbie friendliness 55/100

FujoJTOP/loment#961 · Opened Oct 19, 2026
The enum record's generic-parameter fields alias variant slot 7: every enum with 8+ variants loses its 8th variant and 9+ variants collapse onto tag -1
Open
- Is something wrong?
bug frontend selfhost sev-5

Difficulty 3/5 1-2 days Newbie friendliness 72/100

FujoJTOP/loment#960 · Opened Oct 19, 2026
A generic body that calls another generic compiles to a self-recursive call (pick_u32 becomes outer_u32) and the program stack-overflows
Open
- Is something wrong?
bug frontend selfhost sev-6

Difficulty 4/5 3-5 days Newbie friendliness 48/100

FujoJTOP/loment#959 · Opened Oct 19, 2026
A match with 385 arms segfaults the self-host driver with no diagnostic (384 compiles): the per-match arm table is fixed and unguarded
Open
- Is something wrong?
bug frontend selfhost sev-4

Difficulty 3/5 1-2 days Newbie friendliness 66/100

FujoJTOP/loment#957 · Opened Oct 19, 2026
The 65th struct is silently dropped from the self-host codegen table: it compiles as a scalar i64 with index -1 and runs wrong
Open
- Is something wrong?
bug frontend selfhost sev-5

Difficulty 3/5 1-2 days Newbie friendliness 58/100

FujoJTOP/loment#955 · Opened Oct 19, 2026
loment fmt silently truncates any source over 1 MiB and exits 0: read_all stops at SRC_CAP with no EOF check
Open
- Is something wrong?
bug cli selfhost sev-5

Difficulty 2/5 1-3 hours Newbie friendliness 78/100

FujoJTOP/loment#953 · Opened Oct 19, 2026
lomelf.py crashes with a raw struct.error on a legal unsigned-spelled switch case constant (i32 4294967295)
Open
- Is something wrong?
bug frontend linker sev-4

Difficulty 2/5 1-3 hours Newbie friendliness 82/100

FujoJTOP/loment#951 · Opened Oct 19, 2026
513 local bindings in one function segfault the self-host driver: the 4 KiB local table has no bound check and spills into the parameter-type table
Open
- Is something wrong?
bug frontend selfhost sev-4

Difficulty 3/5 1-2 days Newbie friendliness 75/100

FujoJTOP/loment#949 · Opened Oct 19, 2026
The shipped LVM interpreter segfaults on a switch with no operands: switch_of assumes the bracket exists and indexes the block table with a wrapped offset
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- Is something wrong?
bug selfhost sev-4 vm

Difficulty 2/5 1-3 hours Newbie friendliness 86/100

FujoJTOP/loment#948 · Opened Oct 19, 2026
loment doc segfaults when a file ends with the fn keyword: the declaration reader steps past EOF instead of reporting E1
Open
- Is something wrong?
bug cli selfhost sev-4

Difficulty 2/5 1-3 hours Newbie friendliness 84/100

FujoJTOP/loment#946 · Opened Oct 19, 2026
`choose runtime`: `runtime` and `no_runtime` must be a property of the artifact, not a claim
Open
- Is something wrong?
enhancement frontend linker rt

Difficulty 5/5 Over a week Newbie friendliness 24/100

FujoJTOP/loment#944 · Opened Oct 19, 2026
Every new dimension joins the matrix: `vm`, `lms`, `lspe` get the same checklist and a cell apiece
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- Is something wrong?
enhancement frontend lms selfhost vm

Difficulty 5/5 Over a week Newbie friendliness 25/100

FujoJTOP/loment#943 · Opened Oct 19, 2026
`choose gc`: the three tiers must drive the runtime's four rungs, the VM and the artifact — not just a flag
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- Is something wrong?
enhancement frontend gc selfhost

Difficulty 5/5 Over a week Newbie friendliness 30/100

FujoJTOP/loment#942 · Opened Oct 19, 2026
`choose mode`: `std` and `no_std` must reach the linker, the runtime closure and the docs — not just the checker
Open
- Is something wrong?
cap enhancement frontend linker

Difficulty 5/5 Over a week Newbie friendliness 25/100

FujoJTOP/loment#941 · Opened Oct 19, 2026
The `choose` matrix: every legal combination is a program every subsystem must agree on
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enhancement frontend linker selfhost

Difficulty 5/5 Over a week Newbie friendliness 20/100

FujoJTOP/loment#940 · 2 comments · Opened Oct 19, 2026
lomextblock segfaults on a ~80 KB input: its fixed token table has no bound check
Open
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bug selfhost sev-4

Difficulty 2/5 1-3 hours Newbie friendliness 75/100

FujoJTOP/loment#939 · Opened Oct 19, 2026
0.1.5.4 — LSPE: the ledger invariants and the self-audit
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vision

Difficulty 5/5 Over a week Newbie friendliness 25/100

FujoJTOP/loment#938 · Opened Oct 19, 2026
0.1.5.3 — LSPE: the counter-asker and the police (LSPC)
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vision

Difficulty 5/5 Over a week Newbie friendliness 35/100

FujoJTOP/loment#937 · Opened Oct 19, 2026
0.1.5.2 — capability domains in depth
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vision

Difficulty 5/5 Over a week Newbie friendliness 35/100

FujoJTOP/loment#936 · Opened Oct 19, 2026
0.1.5.1 — LMS: the safe memory manager, seven levels
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vision

Difficulty 5/5 Over a week Newbie friendliness 35/100

FujoJTOP/loment#935 · Opened Oct 19, 2026

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