Files
pikuma_ps1/scripts/passes/annotation.lua
T
2026-07-10 09:08:29 -04:00

766 lines
28 KiB
Lua

-- passes/annotation.lua
--
-- Validate atom annotation DSL usage in source files. Reads:
-- - atom_annot / atom_init / atom_setup / atom_commit / atom_bind
-- / atom_terminate / atom_label / atom_offset / TAPE_WORDS
-- - atom_resource / atom_region / atom_group / atom_cadence / atom_async
-- - Binds_* struct declarations
-- Writes:
-- - <ctx.out_root>/<basename>.errors.h (with #error directives on findings)
-- - <ctx.out_root>/<basename>.annotations.txt (human-readable summary)
-- Ported from scripts/tape_atom_annotation_pass.lua:78-545 + 1081-1407
-- (validation only — NOT rendering, which goes to passes/report.lua).
--
-- Coding standard: tabs (1/level), EmmyLua annotations, no regex.
-- ════════════════════════════════════════════════════════════════════════════
-- Module-scope requires + package.path setup
-- ════════════════════════════════════════════════════════════════════════════
local script_path = arg and arg[0] or "?"
local last_sep = 0
for i = 1, #script_path do
local c = script_path:sub(i, i)
if c == "/" or c == "\\" then last_sep = i end
end
local script_dir = last_sep == 0 and "./" or script_path:sub(1, last_sep)
package.path = script_dir .. "../?.lua;" .. script_dir .. "../?/init.lua;" .. script_dir .. "?.lua;" .. package.path
local duffle = require("duffle")
local is_space = duffle.is_space
local is_alpha = duffle.is_alpha
local is_alnum = duffle.is_alnum
local trim = duffle.trim
local find_byte = duffle.find_byte
local read_file = duffle.read_file
local write_file = duffle.write_file
local ensure_dir = duffle.ensure_dir
local dirname = duffle.dirname
local basename_no_ext = duffle.basename_no_ext
local skip_str_or_cmt = duffle.skip_str_or_cmt
local skip_ws_and_cmt = duffle.skip_ws_and_cmt
local read_ident = duffle.read_ident
local read_parens = duffle.read_parens
local read_braces = duffle.read_braces
local scan_to_char = duffle.scan_to_char
local split_top_level_commas = duffle.split_top_level_commas
-- Domain tables (single source of truth in duffle.lua).
local WAVE_CONTEXT_REGS = duffle.WAVE_CONTEXT_REGS
local TAPE_ATOM_MACROS = duffle.TAPE_ATOM_MACROS
local function is_wave_context_reg(n) return WAVE_CONTEXT_REGS[n] ~= nil end
-- ════════════════════════════════════════════════════════════════════════════
-- Hand-rolled split helpers (no regex patterns used)
-- ════════════════════════════════════════════════════════════════════════════
--- Split a string at top-level commas. Used inside TAPE_ATOM_* macro
--- bodies where nested parens/braces/brackets are possible.
local function split_csv_top(s)
local tokens = {}
local i, start = 1, 1
local depth = 0
while i <= #s do
local c = s:sub(i, i)
if c == "(" or c == "{" or c == "[" then
depth = depth + 1
i = i + 1
elseif c == ")" or c == "}" or c == "]" then
depth = depth - 1
i = i + 1
elseif c == "," and depth == 0 then
tokens[#tokens + 1] = s:sub(start, i - 1)
i = i + 1
start = i
else
i = i + 1
end
end
local last = s:sub(start)
if trim(last) ~= "" then tokens[#tokens + 1] = last end
return tokens
end
--- Split a string into whitespace-separated tokens.
--- Hand-rolled (no regex patterns).
local function split_ws(s)
local tokens = {}
local i, n = 1, 1
local len = #s
while i <= len do
-- Skip whitespace.
while i <= len and is_space(s:sub(i, i)) do i = i + 1 end
if i > len then break end
local start = i
-- Take non-whitespace run.
while i <= len and not is_space(s:sub(i, i)) do i = i + 1 end
tokens[n] = s:sub(start, i - 1)
n = n + 1
end
return tokens
end
-- ════════════════════════════════════════════════════════════════════════════
-- Parse TAPE_ATOM_ANNOT(...) calls
-- ════════════════════════════════════════════════════════════════════════════
-- Recognize a `atom_bind(...)`, `atom_reads(...)`, or `atom_writes(...)`
-- sub-call embedded inside an atom_info arg list. Returns the kind
-- ("atom_bind" / "atom_reads" / "atom_writes") and the inner content,
-- or nil if the token isn't a recognized sub-call form. Flattened via
-- a prefix lookup instead of a nested if/elseif chain.
local REGS_CALL_PREFIX = {
["atom_writes("] = { kind = "atom_writes", inner_offset = 13 },
["atom_reads("] = { kind = "atom_reads", inner_offset = 12 },
["atom_bind("] = { kind = "atom_bind", inner_offset = 11, single_ident = true },
}
local function parse_regs_call(s)
if s:sub(-1) ~= ")" then return nil end
-- Try longest prefix first so "atom_writes(" wins over "atom_reads("
-- when both 12-char prefixes would otherwise match. Lengths:
-- atom_writes( = 12 chars, offset 13
-- atom_reads( = 11 chars, offset 12
-- atom_bind( = 10 chars, offset 11
local spec = REGS_CALL_PREFIX[s:sub(1, 12)]
if not spec then
spec = REGS_CALL_PREFIX[s:sub(1, 11)]
end
if not spec then
spec = REGS_CALL_PREFIX[s:sub(1, 10)]
end
if not spec then return nil end
local inner = s:sub(spec.inner_offset, -2)
if spec.single_ident then
-- atom_bind takes a single Binds_* type ident. Trim and pass through.
return spec.kind, trim(inner)
end
return spec.kind, inner
end
-- Resolve any phase_* / R_* alias macros in a register list.
-- (Phase / region / cadence aliases have been dropped. Kept as an
-- identity function so callers can stay uniform.)
local function resolve_reg_aliases(regs)
return regs
end
-- Parse a comma-separated inner content (e.g. inside atom_reads(...))
-- into a list of trimmed identifiers with aliases resolved.
local function parse_regs_list(inner)
local out = {}
for _, r in ipairs(split_csv_top(inner)) do
local trimmed = trim(r)
if trimmed ~= "" then out[#out + 1] = trimmed end
end
return resolve_reg_aliases(out)
end
-- Parse a single token (from split_csv_top) into an arg entry.
-- Three forms: register-list call, bare identifier,
-- "other" (preserved as text).
local function parse_arg_token(s)
local kind, inner = parse_regs_call(s)
if kind then
if kind == "atom_bind" then
return { kind = kind, value = inner } -- single ident, not a list
end
return { kind = kind, value = parse_regs_list(inner) }
end
local id = read_ident(s, 1)
if id and trim(s) == id then
return { kind = "ident", value = id }
end
return { kind = "other", value = s }
end
--- Extract identifier args from a parenthesized group. Returns a list
--- of {kind, value} pairs where kind is one of:
--- "ident" -- a bare identifier (e.g. phase_work)
--- "atom_reads" -- an atom_reads(...) call: value is the register list
--- "atom_writes" -- an atom_writes(...) call: value is the register list
--- "other" -- something we can't classify (preserved as text)
local function parse_atom_annot_args(inner)
local args = {}
for _, tok in ipairs(split_csv_top(inner)) do
local s = trim(tok)
if s ~= "" then
args[#args + 1] = parse_arg_token(s)
end
end
return args
end
-- ════════════════════════════════════════════════════════════════════════════
-- Parse TAPE_WORDS(mac_X, N) pragma directives
-- ════════════════════════════════════════════════════════════════════════════
--- Find every TAPE_WORDS(mac_X, N) pragma in source.
--- Accepts both forms:
--- _Pragma("mac_X tape_atom words=N") (operator form)
--- #pragma mac_X tape_atom words=N (directive form)
local function find_macro_word_annotations(source)
local line_of = duffle.LineIndex(source)
local out = {}
local len = #source
local i = 1
while i <= len do
i = skip_ws_and_cmt(source, i); if i > len then break end
-- Skip preprocessor directives (lines starting with #).
if source:sub(i, i) == "#" then
local j = i
while j <= len and source:sub(j, j) ~= "\n" do j = j + 1 end
i = j + 1
else
local ident, after = read_ident(source, i)
if not ident then
i = i + 1
elseif ident == "_Pragma" then
local open = skip_ws_and_cmt(source, after)
if source:sub(open, open) == "(" then
local str, str_end = read_parens(source, open)
str = trim(str)
if str:sub(1, 1) == '"' and str:sub(-1) == '"' then
local inner = str:sub(2, -2)
local space = find_byte(inner, " ", 1)
if space then
local name = inner:sub(1, space - 1)
local rest = inner:sub(space + 1)
local eq = find_byte(rest, "=", 1)
if eq then
local key = trim(rest:sub(1, eq - 1))
local val = trim(rest:sub(eq + 1))
if key == "tape_atom words" or key == "words" then
local n = tonumber(val) or 0
out[#out + 1] = {
line = line_of(i),
name = name,
words = n,
}
end
end
end
end
i = str_end
else
i = open + 1
end
elseif ident == "pragma" then
-- Directive form: `#pragma mac_X tape_atom words=N`
local rest_start = skip_ws_and_cmt(source, after)
local j = rest_start
while j <= len and source:sub(j, j) ~= "\n" do j = j + 1 end
local line_text = trim(source:sub(rest_start, j - 1))
local tokens = split_ws(line_text)
if #tokens >= 3 and tokens[2] == "tape_atom" and tokens[3]:sub(1, 6) == "words=" then
local name = tokens[1]
local n = tonumber(tokens[3]:sub(7)) or 0
out[#out + 1] = { line = line_of(i), name = name, words = n }
elseif #tokens >= 2 and tokens[2]:sub(1, 6) == "words=" then
local name = tokens[1]
local n = tonumber(tokens[2]:sub(7)) or 0
out[#out + 1] = { line = line_of(i), name = name, words = n }
end
i = j
else
i = after
end
end
end
return out
end
-- ════════════════════════════════════════════════════════════════════════════
-- Parse `typedef Struct_(Binds_X) { ... };` declarations
-- ════════════════════════════════════════════════════════════════════════════
--- Find every Binds_* struct declaration.
--- Returns a list of {line, name, fields = {{name, byte_offset}, ...}}.
local function find_binds_structs(source)
local line_of = duffle.LineIndex(source)
local out = {}
local len = #source
local i = 1
while i <= len do
i = skip_ws_and_cmt(source, i); if i > len then break end
if source:sub(i, i) == "#" then
local j = i
while j <= len and source:sub(j, j) ~= "\n" do j = j + 1 end
i = j + 1
else
local ident, after = read_ident(source, i)
if not ident then
i = i + 1
elseif ident == "typedef" then
local j = skip_ws_and_cmt(source, after)
local id2, after2 = read_ident(source, j)
if id2 ~= "Struct_" then
i = after2 or (j + 1)
elseif id2 == "Struct_" then
local open = skip_ws_and_cmt(source, after2)
if source:sub(open, open) == "(" then
local inner, after_paren = read_parens(source, open)
local name = trim(inner)
local brace = scan_to_char(source, "{", after_paren)
if brace then
local body, after_brace = read_braces(source, brace)
local fields = {}
local byte_off = 0
local k = 1
while k <= #body do
k = skip_ws_and_cmt(body, k); if k > #body then break end
local tid, tafter = read_ident(body, k)
if not tid then
k = k + 1
elseif tid == "U4" then
local fid, fafter = read_ident(body, skip_ws_and_cmt(body, tafter))
if fid then
fields[#fields + 1] = { name = fid, offset = byte_off }
byte_off = byte_off + 4
end
k = fafter or tafter + 1
else
k = tafter + 1
end
end
-- Only emit Binds_* structs.
if name:sub(1, 6) == "Binds_" then
out[#out + 1] = {
line = line_of(i),
name = name,
fields = fields,
bytes = byte_off,
}
end
i = after_brace
else
i = open + 1
end
else
i = open + 1
end
else
i = after2 or (j + 1)
end
else
i = after
end
end
end
return out
end
-- ════════════════════════════════════════════════════════════════════════════
-- Find every MipsAtom_(name) { ... } declaration in source
-- ════════════════════════════════════════════════════════════════════════════
local function find_atom_names(source)
local line_of = duffle.LineIndex(source)
local out = {}
local len = #source
local i = 1
while i <= len do
i = skip_ws_and_cmt(source, i); if i > len then break end
local ident, after = read_ident(source, i)
if not ident then
i = i + 1
elseif ident == "MipsAtom_" then
local open = skip_ws_and_cmt(source, after)
if source:sub(open, open) == "(" then
local inner, after_paren = read_parens(source, open)
local a = 1
while a <= #inner and is_space(inner:sub(a, a)) do a = a + 1 end
local b = a
while b <= #inner and is_alnum(inner:sub(b, b)) do b = b + 1 end
local name = inner:sub(a, b - 1)
if name ~= "" then
out[#out + 1] = { line = line_of(i), name = name }
end
local brace = scan_to_char(source, "{", after_paren)
if brace then
local _, after_brace = read_braces(source, brace)
i = after_brace
else
i = open + 1
end
else
i = open + 1
end
else
i = after
end
end
return out
end
-- ════════════════════════════════════════════════════════════════════════════
-- Find atom annotations (atom_annot / atom_init / atom_setup / atom_commit
-- / atom_bind / atom_terminate)
-- ════════════════════════════════════════════════════════════════════════════
--- True iff the parsed arg is a register-list call (any recognized form).
local function is_regs_arg(a)
return a and (a.kind == "atom_reads" or a.kind == "atom_writes" or a.kind == "regs")
end
--- Per-macro arg-shape handlers. Each takes (entry, args) and mutates
--- Per-atom_info sub-call dispatch. Each takes (entry, args) and mutates
--- entry.{reads, writes, binds, errors}. The new annotation shape is:
---
--- MipsAtom_(name) atom_info(
--- atom_bind(Binds_X)
--- , atom_reads(...)
--- , atom_writes(...)
--- ) { ... };
---
--- All sub-calls are order-independent; each is dispatched on its
--- `kind` (atom_bind / atom_reads / atom_writes) when parsed.
local ANNOT_ARG_HANDLERS = {}
-- atom_info(atom_bind(Binds_X), atom_reads(...), atom_writes(...))
function ANNOT_ARG_HANDLERS.info(entry, args)
for _, arg in ipairs(args) do
if arg.kind == "atom_bind" then
entry.binds = arg.value
elseif arg.kind == "atom_reads" then
entry.reads = arg.value
elseif arg.kind == "atom_writes" then
entry.writes = arg.value
elseif arg.kind == "ident" then
-- Reserved for future phase tokens. Currently ignored.
-- (Could be reintroduced as `phase_*` sub-calls of atom_info.)
else
entry.errors[#entry.errors + 1] = string.format(
"unexpected atom_info arg kind=%s value=%s", arg.kind, tostring(arg.value))
end
end
end
-- Build a new annotation entry with the standard shape.
local function new_annot_entry(line, ident, name, kind)
return {
line = line,
macro = ident,
name = name,
kind = kind,
binds = nil,
reads = {},
writes = {},
errors = {},
}
end
--- Find every MipsAtom_(name) declaration in source, then look for an
--- immediately-following atom_info(...) call. If present, parse its
--- sub-calls into a normalized annotation entry linked to the MipsAtom_
--- name. If no atom_info follows, emit NO annotation entry (atoms
--- without annotations are valid in the new minimal shape).
local function find_atom_annotations(source)
local line_of = duffle.LineIndex(source)
local annots = {}
local len = #source
local i = 1
while i <= len do
i = skip_ws_and_cmt(source, i); if i > len then break end
-- Skip preprocessor directives (lines starting with #).
if source:sub(i, i) == "#" then
local j = i
while j <= len and source:sub(j, j) ~= "\n" do j = j + 1 end
i = j + 1
goto continue
end
local ident, after = read_ident(source, i)
if not ident then
i = i + 1
elseif ident == "MipsAtom_" then
local open = skip_ws_and_cmt(source, after)
if source:sub(open, open) ~= "(" then
i = open + 1
goto continue
end
local inner, after_paren = read_parens(source, open)
local a = 1
while a <= #inner and is_space(inner:sub(a, a)) do a = a + 1 end
local b = a
while b <= #inner and is_alnum(inner:sub(b, b)) do b = b + 1 end
local name = inner:sub(a, b - 1)
-- Look for atom_info(...) right after MipsAtom_(name).
local lookahead = skip_ws_and_cmt(source, after_paren)
local look_ident, look_after = read_ident(source, lookahead)
if look_ident == "atom_info" then
local info_open = skip_ws_and_cmt(source, look_after)
if source:sub(info_open, info_open) == "(" then
local info_inner, info_after = read_parens(source, info_open)
local args = parse_atom_annot_args(info_inner)
local entry = new_annot_entry(line_of(lookahead), "atom_info", name, "info")
ANNOT_ARG_HANDLERS.info(entry, args)
annots[#annots + 1] = entry
i = info_after
else
i = info_open + 1
end
else
-- No atom_info follows this MipsAtom_. Valid in new shape.
i = after_paren
end
-- Skip past the body { ... } if present.
local brace = scan_to_char(source, "{", i)
if brace then
local _, after_brace = read_braces(source, brace)
i = after_brace
end
else
i = after
end
::continue::
end
return annots
end
-- ════════════════════════════════════════════════════════════════════════════
-- Validation (ported from tape_atom_annotation_pass.lua:1193-1405)
-- ════════════════════════════════════════════════════════════════════════════
local function validate(ctx, src)
local source = src.text
local annots = find_atom_annotations(source)
local macros = find_macro_word_annotations(source)
local binds = find_binds_structs(source)
local atoms = find_atom_names(source)
local atom_index = {}
for _, a in ipairs(atoms) do atom_index[a.name] = a end
local binds_index = {}
for _, b in ipairs(binds) do binds_index[b.name] = b end
local errors = {}
local warnings = {}
local info = {}
-- 1. Every annotated atom must exist as a real MipsAtom_ declaration.
for _, a in ipairs(annots) do
if a.error then
errors[#errors + 1] = {line = a.line, msg = a.error}
elseif not atom_index[a.name] then
errors[#errors + 1] = {
line = a.line,
msg = string.format("annotation for '%s' has no matching MipsAtom_(%s) { ... }", a.name, a.name),
}
end
if a.errors then
for _, msg in ipairs(a.errors) do
errors[#errors + 1] = {line = a.line, msg = string.format("'%s': %s", a.name, msg)}
end
end
end
-- 2. Every atom may have AT MOST ONE annotation (no duplicates).
-- (Atoms with ZERO annotations are valid in the new minimal shape.)
local count_per_atom = {}
for _, a in ipairs(annots) do
if a.name and not a.error then
count_per_atom[a.name] = (count_per_atom[a.name] or 0) + 1
end
end
for name, n in pairs(count_per_atom) do
if n > 1 then
errors[#errors + 1] = {
line = atom_index[name] and atom_index[name].line or 0,
msg = string.format("MipsAtom_(%s) has %d annotations (expected at most 1)", name, n),
}
end
end
-- 3. (Phase validity check DROPPED. Phases were removed from the
-- annotation DSL. They may be reintroduced later as sub-calls of
-- atom_info, at which point ordering checks will go here.)
-- 4. BIND atoms must reference a real Binds_* struct.
for _, a in ipairs(annots) do
if a.binds then
if not binds_index[a.binds] then
errors[#errors + 1] = {
line = a.line,
msg = string.format("'%s' binds '%s' but no Struct_(%s) { ... } declaration found", a.name, a.binds, a.binds),
}
end
end
end
-- 5. BIND writes must be wave-context registers that match Binds_ fields.
for _, a in ipairs(annots) do
if a.binds and binds_index[a.binds] then
local bs = binds_index[a.binds]
local field_names = {}
for _, f in ipairs(bs.fields) do field_names[f.name] = true end
for _, f in ipairs(bs.fields) do
local candidate = "R_" .. f.name
if not is_wave_context_reg(candidate) then
warnings[#warnings + 1] = {
line = bs.line,
msg = string.format("%s field '%s' doesn't match a known wave-context register (candidate '%s')", a.binds, f.name, candidate),
}
end
end
for _, w in ipairs(a.writes) do
if not is_wave_context_reg(w) then
warnings[#warnings + 1] = {
line = a.line,
msg = string.format("%s writes '%s' which is not a known wave-context register", a.name, w),
}
end
end
end
end
-- 6. INFO reads should be wave-context registers (or R_TapePtr for rbind).
for _, a in ipairs(annots) do
for _, r in ipairs(a.reads) do
if not is_wave_context_reg(r) and r ~= "R_TapePtr" then
warnings[#warnings + 1] = {
line = a.line,
msg = string.format("atom '%s' reads '%s' which is not a known wave-context register", a.name, r),
}
end
end
end
-- 7. TAPE_WORDS(mac_X, N) ↔ WORD_COUNT(mac_X, N) drift.
-- Three outcomes: missing (error), mismatch (error), match (info).
-- Flattened via early-return-style helper instead of 3-way elseif.
local function check_macro_drift(m, declared)
if not declared then
errors[#errors + 1] = {
line = m.line,
msg = string.format("TAPE_WORDS(%s, %d) but '%s' is not in metadata.h", m.name, m.words, m.name),
}
return
end
if declared ~= m.words then
errors[#errors + 1] = {
line = m.line,
msg = string.format("DRIFT: TAPE_WORDS(%s, %d) but metadata.h declares WORD_COUNT(%s, %d)", m.name, m.words, m.name, declared),
}
return
end
info[#info + 1] = {
line = m.line,
msg = string.format("OK: %s = %d words", m.name, m.words),
}
end
for _, m in ipairs(macros) do
check_macro_drift(m, ctx.shared.word_counts[m.name])
end
-- 8. (atom_<...> _Pragma validation DROPPED. The pragma macros
-- atom_resource / atom_region / atom_group / atom_cadence /
-- atom_async were removed from atom_dsl.h. They may be
-- reintroduced later as sub-calls of atom_info.)
-- 9. (CADENCE_ONDEMAND requires async check DROPPED. Same reason
-- as #8.)
-- 10. Information summary.
info[#info + 1] = {
line = 0,
msg = string.format("scanned: %d atom(s), %d annotation(s), %d macro-word-decl(s), %d binds struct(s)",
#atoms, #annots, #macros, #binds),
}
return {
atoms = atoms,
annots = annots,
macros = macros,
pragmas = pragmas,
binds = binds,
errors = errors,
warnings = warnings,
info = info,
}
end
-- ════════════════════════════════════════════════════════════════════════════
-- Per-source output: errors.h + annotations.txt
-- ════════════════════════════════════════════════════════════════════════════
--- Render <basename>.errors.h with #error directives for any structural issues.
local function emit_errors_h(ctx, src, result)
local out_path = ctx.out_root .. "/" .. src.basename .. ".errors.h"
local lines = {
"// Auto-generated by ps1_meta.lua (passes/annotation.lua) — DO NOT EDIT",
"#pragma once",
"",
}
for _, e in ipairs(result.errors) do
lines[#lines + 1] = string.format('#error "annotation: %s (line %d)"', e.msg, e.line)
end
if #result.errors == 0 then
lines[#lines + 1] = "// annotation pass OK"
end
if ctx.dry_run then return nil end
ensure_dir(ctx.out_root)
write_file(out_path, table.concat(lines, "\n") .. "\n")
return out_path
end
--- Render <basename>.annotations.txt human-readable summary.
--- Implementation lives in passes/report.lua (extracted to keep this
--- file focused on validation). We delegate via a callback set on ctx.
local function emit_annotations_txt(ctx, src, result)
-- The annotation pass emits a structured result; the report pass
-- renders it. To avoid a circular dep, the M.run below packs the
-- result into ctx.upstream.annotation for the report pass to
-- consume via ctx.flags._annot_results.
ctx.flags = ctx.flags or {}
ctx.flags._annot_results = ctx.flags._annot_results or {}
ctx.flags._annot_results[#ctx.flags._annot_results + 1] = {
source = src,
result = result,
}
return nil -- annotations.txt is written by report.lua
end
-- ════════════════════════════════════════════════════════════════════════════
-- M.run — orchestrator entry
-- ════════════════════════════════════════════════════════════════════════════
--- @class M
local M = {}
--- @param ctx PassCtx
--- @return PassResult
function M.run(ctx)
local outputs = {}
local errors = {}
local warnings = {}
for _, src in ipairs(ctx.sources) do
local result = validate(ctx, src)
local err_path = emit_errors_h(ctx, src, result)
if err_path then
table.insert(outputs, { errors_h = err_path })
end
-- Stash result for report pass.
emit_annotations_txt(ctx, src, result)
for _, e in ipairs(result.errors) do
errors[#errors + 1] = { line = e.line, msg = e.msg }
end
for _, w in ipairs(result.warnings) do
warnings[#warnings + 1] = { line = w.line, msg = w.msg }
end
end
return { outputs = outputs, errors = errors, warnings = warnings }
end
return M