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toolchain: banner purge + WHY-only comment sweep (rule 8)

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selfhost/, cmd/, internal/ join the tree-wide sweep: every section
banner dies (91 selfhost + the cmd C-style dividers -> 0); narration
and stale contracts deleted (pre-#22 bundler notes, retired
single-PT_LOAD and no-archive claims, superseded ABI tables); every
ref/harec/qbe cite, task cite, encoding/ELF contract, and rule-10
twin pointer kept; lost lifetime/rationale lines restored where the
sweep over-cut (elf_globals ownership, kwtab linear-scan). Comment-
only proven: all five wwstage tool binaries byte-identical across
the sweep; test-commit, test-byteid (161+1399, 0 pinned-divergent),
and test-bootstrap (fixed point + 991-995 byte-id) all exit 0.
The read-through banked 66 latent-bug leads (checkpoint).
This commit is contained in:
Hojun-Cho
2026-08-08 23:14:03 +09:00
parent 83f5956df2
commit 62b9d20383
60 changed files with 232 additions and 1045 deletions
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14
cmd/wcc/ww.h
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@@ -1,6 +1,4 @@
/*
* ww.h — central header for libwcc.a (the ww frontend library).
*
* Plan 9 in spirit. This file mirrors cc/cc.h's role: one shared
* header that declares everything every translation unit in the
* frontend cares about.
@@ -19,7 +17,6 @@
/* version banner — printed by `ww -V` */
#define WW_VERSION "0.0"
/* short integer aliases, Plan 9 / Hare-flavoured */
typedef int8_t i8;
typedef int16_t i16;
typedef int32_t i32;
@@ -29,7 +26,6 @@ typedef uint16_t u16;
typedef uint32_t u32;
typedef uint64_t u64;
/* forward decls — concrete shapes appear in their phases. */
typedef struct Tok Tok;
typedef struct Lex Lex;
typedef struct Node Node;
@@ -54,8 +50,6 @@ char *astrndup(Arena*, const char*, u64);
char *aprintf(Arena*, const char*, ...);
void freearena(Arena*);
/* err.c — diagnostics. Phase 0 has only fatal/warn; later phases add
* source-location-bearing variants. */
typedef struct Pos Pos;
struct Pos {
const char *file;
@@ -72,15 +66,12 @@ void fatal(const char*, ...) __attribute__((noreturn, format(printf, 1, 2)));
void errorf(Pos, const char*, ...) __attribute__((format(printf, 2, 3)));
void warnf(Pos, const char*, ...) __attribute__((format(printf, 2, 3)));
/* tiny helpers */
#define nelem(a) ((sizeof(a) / sizeof((a)[0])))
/* ---- lexer (lex.c, tok.c) ----------------------------------------- */
typedef enum {
/* zero is "no token" so memset-zero structs read sane */
TK_NONE = 0,
/* trivial */
TK_EOF,
TK_ERR,
TK_IDENT,
@@ -117,7 +108,6 @@ typedef enum {
TK_CONST, /* const binding */
TK_UNDER, /* bare '_' discard */
/* punct + operators */
TK_LPAREN, /* ( */
TK_RPAREN, /* ) */
TK_LBRACE, /* { */
@@ -233,7 +223,6 @@ const char *tokname(Tkind); /* canonical spelling, e.g. "fn", "+=" */
void tokprint(FILE*, Tok); /* one line, "%s:%d:%d: %s %q" */
Tkind kwlookup(const char *s, u64 n); /* TK_NONE if not a keyword */
/* ---- AST (ast.c, parse.c) ----------------------------------------- */
typedef enum {
N_NONE = 0,
@@ -399,7 +388,6 @@ void parserinit(Parser*, Arena*, Lex*);
Node *parsefile(Parser*);
Node *parseexpr_top(Parser*); /* for testing: parse one expression */
/* ---- types (type.c) ----------------------------------------------- */
typedef enum {
TY_NONE = 0,
TY_VOID,
@@ -525,7 +513,6 @@ int type_isuntyped(Type *t);
int type_assignable(Type *dst, Type *src);
Type *type_default(Type *t); /* untyped → default concrete */
/* ---- symbols (sym.c) ---------------------------------------------- */
typedef enum {
SK_NONE = 0,
SK_VAR,
@@ -580,7 +567,6 @@ Sym *scope_lookup_in_module(Scope*, const char *mod, const char *name);
Sym *scope_lookup_prefer(Scope*, const char *mod, const char *name);
Sym *scope_lookup_type(Scope*, const char *mod, const char *name);
/* ---- checker (check.c) -------------------------------------------- */
typedef struct Checker Checker;
struct Checker {
Arena *a;