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import "mem.hff";
import "libc.hff";
import "option.hff";
/// Macros
defmacro assert {
(ex, s, ...args) [
(do
if not (ex) {
fprintf(stderr, "%s:%d: assertion failed: ", #FILE, #LINE);
fprintf(stderr, s, args);
fprintf(stderr, "\n");
abort();
}
)
]
}
defmacro foreach(x, i, a, ...body) [
{
let $a = a;
for let i = 0; i < $a.#len; ++i {
let x = $a[i];
{ body }
}
}
]
defmacro streq(a,b) [ (strcmp(a,b) == 0) ]
/// Types
struct Type;
struct Decl;
struct Expr;
struct Env;
struct Loc {
fileid i16,
col i16,
line int,
idx isize,
}
#[lax]
enum TokT : i32 {
// !sorted
kw_and, kw_as, kw_break, kw_case, kw_const,
kw_continue, kw_def, kw_defmacro, kw_do,
kw_else, kw_enum, kw_extern, kw_fn,
kw_for, kw_if, kw_import, kw_let, kw_not,
kw_or, kw_return, kw_sizeof, kw_static,
kw_struct, kw_switch, kw_typedef, kw_typeof,
kw_union, kw_while,
NUM_KEYWORDS,
int = -100,
flo,
bool,
str,
chr,
null,
ident,
macident,
gensym,
type,
label,
strify,
eof,
}
def NUM_KEYWORDS = TokT:NUM_KEYWORDS;
struct Tok {
t TokT,
loc Loc,
ty *const Type,
u union {
int i64,
uint u64,
flo f64,
bool bool,
str [#]const u8,
ident *const u8,
},
}
struct Type {
size usize,
align usize,
konst bool,
id uint,
u enum union {
Void,
Bool,
Int struct { sgn bool },
Flo,
Ptr *Type,
Arr struct { child *Type, length i64 },
Slice *Type,
}
}
struct Parser {
fp *FILE,
alloc *Allocator,
curfile *const u8,
tokloc Loc,
curloc Loc,
eof bool,
peekchr Option<int>,
peektok Option<Tok>,
}
struct Decl {
name *const u8,
}
struct DeclList {
link *DeclList,
decl Decl,
}
struct Targ {
name *const u8,
ptrsize u8,
intsize u8,
longsize u8, longalign u8,
llongsize u8, llongalign u8,
sizesize u8,
f64align u8,
valistsize u8, valistalign u8,
charsigned bool,
shortenum bool,
}
// parse.cff
extern fn parser_init(*Parser, path *const u8) void;
extern fn parse(*Parser) [#]Decl;
// util.cff
extern fn xmalloc(n usize) *void;
extern fn xcalloc(n usize, m usize) *void;
extern fn xrealloc(p *void, n usize) *void;
extern fn xstrdup(str *const u8) *u8;
def FNV1A_INI u32 = 0x811c9dc5;
extern fn fnv1a(h u32, [#]const u8) u32;
extern fn fnv1a_s(h u32, *const u8) u32;
extern fn fnv1a_i(h u32, i64) u32;
extern fn addfilepath(*const u8) int;
extern fn fatal(*Parser, Loc, fmt *const u8, ...) void;
extern fn internstr(*const u8) *const u8;
// fmt.cff
extern fn vpfmt(proc *fn(u8, *void) void, parg *void, fmt *const u8, va_list) void;
extern fn pfmt(proc *fn(u8, *void) void, parg *void, fmt *const u8, ...) void;
extern fn vefmt(fmt *const u8, ap va_list) void;
extern fn efmt(fmt *const u8, ...) void;
// type.cff
// env.cff
extern fn mkenv(parent *Env, alloc *Allocator) *Env;
extern fn envput(*Env, *const Decl) *Decl;
// targ.cff
extern static g_targ *const Targ;
extern fn targ_ini(name *const u8) bool;
// Inline functions
fn bswap32(x u32) u32 {
return (x >> 24)
| ((x >> 8) & 0x00FF00)
| ((x << 8) & 0xFF0000)
| (x << 24);
}
fn bswap64(x u64) u64 {
return (as(u64)bswap32(x) << 32)
| (bswap32(x >> 32));
}
fn spanz(x *const u8) [#]const u8 {
return x[0::strlen(x)];
}
|
