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mescc: Support typedef and many TCC declaration variants. 

* module/language/c99/compiler.mes (ast->info): Register typedefs in types.
  (enum-def-list->constants): Support addition and substraction in
  enum field values.
  (get-type): New function.  Use throughout.
This commit is contained in:
Jan Nieuwenhuizen 2017-05-25 07:32:29 +02:00
parent 3b4e7cd8a8
commit bade7d5519
1 changed files with 184 additions and 11 deletions
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195
module/language/c99/compiler.mes
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@ -590,6 +590,12 @@
(size (type->size info type)))
(append-text info (wrap-as (i386:value->accu size)))))
((sizeof-type (type-name (decl-spec-list (type-spec (struct-ref (ident ,name))))))
(let* ((type (list "struct" name))
(fields (or (type->description info type) '()))
(size (type->size info type)))
(append-text info (wrap-as (i386:value->accu size)))))
;; c+p expr->arg
;; g_cells[<expr>]
((array-ref ,index (p-expr (ident ,array)))
@ -932,7 +938,7 @@
(pmatch o
((fixed-type ,type) type)
((struct-ref (ident ,name)) (list "struct" name))
((decl (decl-spec-list (type-spec (struct-ref (ident ,name)))));; "scm"
((decl (decl-spec-list (type-spec (struct-ref (ident ,name))))) ;; "scm"
(list "struct" name)) ;; FIXME
((typename ,name) name)
(,name name)
@ -1128,10 +1134,30 @@
(cons type name))
((comp-decl (decl-spec-list (type-spec (typename ,type))) (comp-declr-list (comp-declr (ident ,name))))
(cons type name))
((comp-decl (decl-spec-list (type-spec (fixed-type ,type))) (comp-declr-list (comp-declr (ftn-declr (scope (ptr-declr (pointer) (ident ,name))) (param-list (param-decl (decl-spec-list (type-spec (void)))))))))
((comp-decl (decl-spec-list (type-spec (typename ,type))) (comp-declr-list (comp-declr (ptr-declr (pointer (pointer)) (ident ,name)))))
(cons type name)) ;; FIXME: **
((comp-decl (decl-spec-list (type-spec (fixed-type ,type))) (comp-declr-list (comp-declr (ftn-declr (scope (ptr-declr (pointer) (ident ,name))) (param-list . ,param-list)))))
(cons type name)) ;; FIXME function / int
((comp-decl (decl-spec-list (type-spec (fixed-type ,type))) (comp-declr-list (comp-declr (ptr-declr (pointer) (ident ,name)))))
(cons type name)) ;; FIXME: ptr/char
((comp-decl (decl-spec-list (type-spec (fixed-type ,type))) (comp-declr-list (comp-declr (ptr-declr (pointer (pointer)) (ident ,name)))))
(cons type name)) ;; FIXME: **
((comp-decl (decl-spec-list (type-spec (void))) (comp-declr-list (comp-declr (ptr-declr (pointer) (ident ,name)))))
(cons '(void) name)) ;; FIXME: *
((comp-decl (decl-spec-list (type-spec (void))) (comp-declr-list (comp-declr (ftn-declr (scope (ptr-declr (pointer) (ident ,name))) (param-list . ,param-list)))))
(cons '(void) name))
((comp-decl (decl-spec-list (type-spec (typename ,type))) (comp-declr-list (comp-declr (ptr-declr (pointer) (ident ,name)))))
(cons '(void) name))
;; FIXME: BufferedFile *include_stack[INCLUDE_STACK_SIZE];
((comp-decl (decl-spec-list (type-spec (typename ,type))) (comp-declr-list (comp-declr (ptr-declr (pointer) (array-of (ident ,name) (p-expr (fixed ,size)))))))
(cons type name)) ;; FIXME: decl, array size
((comp-decl (decl-spec-list (type-spec (fixed-type ,type))) (comp-declr-list (comp-declr (array-of (ident ,name) (p-expr (fixed ,size))))))
(cons type name))
;; struct InlineFunc **inline_fns;
((comp-decl (decl-spec-list (type-spec (struct-ref (ident ,type)))) (comp-declr-list (comp-declr (ptr-declr (pointer (pointer)) (ident ,name)))))
(cons type name))
((comp-decl (decl-spec-list (type-spec (struct-ref (ident ,type)))) (comp-declr-list (comp-declr (ptr-declr (pointer) (ident ,name)))))
(cons type name))
(_ (error "struct-field: unsupported: " o))))
(define (ast->type o)
@ -1154,7 +1180,11 @@
(type->size info type))
((decl-spec-list (type-spec (fixed-type ,type)) (type-qual ,qual))
(type->size info type))
(_ (let ((type (assoc-ref (.types info) o)))
((decl-spec-list (type-qual ,qual) (type-spec (fixed-type ,type)))
(type->size info type))
((struct-ref (ident ,type))
(type->size info `("struct" ,type)))
(_ (let ((type (get-type (.types info) o)))
(if type (cadr type)
(error "type->size: unsupported: " o))))))
@ -1180,13 +1210,21 @@
(ident->type info array))
(_ (error "p-expr->type: unsupported: " o))))
(define (get-type types o)
(let ((t (assoc-ref types o)))
(pmatch t
((typedef ,next) (get-type types next))
(_ t))))
(define (type->description info o)
(pmatch o
((decl-spec-list (type-spec (fixed-type ,type)))
(type->description info type))
((decl-spec-list (type-spec (fixed-type ,type)) (type-qual ,qual))
(type->description info type))
(_ (let ((type (assoc-ref (.types info) o)))
((struct-ref (ident ,type))
(type->description info `("struct" ,type)))
(_ (let ((type (get-type (.types info) o)))
(if (not type) (stderr "TYPES=~s\n" (.types info)))
(if type (caddr type)
(error "type->description: unsupported:" o))))))
@ -1243,6 +1281,7 @@
(globals (.globals info))
(locals (.locals info))
(constants (.constants info))
(types (.types info))
(text (.text info)))
(define (add-local locals name type pointer)
(let* ((id (if (or (null? locals) (not (local? (cdar locals)))) 1
@ -1590,6 +1629,7 @@
(let ((globals (append globals (list (ident->global name type 1 0)))))
(clone info #:globals globals))))
;; char *p = 0;
((decl (decl-spec-list (type-spec (fixed-type ,type)) . _) (init-declr-list (init-declr (ptr-declr (pointer) (ident ,name)) (initzer (p-expr (fixed ,value))))))
(let ((value (cstring->number value)))
(if (.function info)
@ -1599,6 +1639,26 @@
((accu->ident info) name))))
(clone info #:globals (append globals (list (ident->global name type 1 value)))))))
;; FILE *p;
((decl (decl-spec-list (type-spec (typename ,type))) (init-declr-list (init-declr (ptr-declr (pointer) (ident ,name)))))
(if (.function info)
(let* ((locals (add-local locals name type 1))
(info (clone info #:locals locals)))
(append-text info (append (wrap-as (i386:value->accu 0))
((accu->ident info) name))))
(let ((globals (append globals (list (ident->global name type 1 0)))))
(clone info #:globals globals))))
;; FILE *p = 0;
((decl (decl-spec-list (type-spec (typename ,type)) . _) (init-declr-list (init-declr (ptr-declr (pointer) (ident ,name)) (initzer (p-expr (fixed ,value))))))
(let ((value (cstring->number value)))
(if (.function info)
(let* ((locals (add-local locals name type 1))
(info (clone info #:locals locals)))
(append-text info (append (wrap-as (i386:value->accu value))
((accu->ident info) name))))
(clone info #:globals (append globals (list (ident->global name type 1 value)))))))
;; char **p;
((decl (decl-spec-list (type-spec (fixed-type ,type))) (init-declr-list (init-declr (ptr-declr (pointer (pointer)) (ident ,name)))))
(if (.function info)
@ -1789,7 +1849,7 @@
(let ((type (enum->type name fields))
(constants (enum-def-list->constants constants fields)))
(clone info
#:types (append (.types info) (list type))
#:types (append types (list type))
#:constants (append constants (.constants info)))))
;; enum {};
@ -1798,10 +1858,32 @@
(clone info
#:constants (append constants (.constants info)))))
;; FIXME TCC/Nyacc madness here: extra parentheses around struct name?!?
;; struct (FOO) WTF?
((decl (decl-spec-list (type-spec (struct-def (ident (,name)) (field-list . ,fields)))))
(let ((type (struct->type (list "struct" name) (map struct-field fields))))
(clone info #:types (append types (list type)))))
((decl (decl-spec-list (type-spec (struct-def (ident (,type)) (field-list . ,fields))))
(init-declr-list (init-declr (ident ,name))))
(let ((info ((ast->info info) `(decl (decl-spec-list (type-spec (struct-def (ident ,type) (field-list . ,fields))))))))
((ast->info info)
`(decl (decl-spec-list (type-spec (struct-ref (ident ,type)))) (init-declr-list (init-declr (ident ,name)))))))
;; struct foo* bar = expr;
((decl (decl-spec-list (type-spec (struct-ref (ident (,type))))) (init-declr-list (init-declr (ptr-declr (pointer) (ident ,name)) (initzer (ref-to (p-expr (ident ,value)))))))
(if (.function info) (let* ((locals (add-local locals name (list "struct" type) 1))
(info (clone info #:locals locals)))
(append-text info (append ((ident-address->accu info) value)
((accu->ident info) name))))
(error "ast->info: unsupported global:" o)))
;; END FIXME -- dupe of the below
;; struct
((decl (decl-spec-list (type-spec (struct-def (ident ,name) (field-list . ,fields)))))
(let ((type (struct->type (list "struct" name) (map struct-field fields))))
(clone info #:types (append (.types info) (list type)))))
(clone info #:types (cons type types))))
;; struct foo {} bar;
((decl (decl-spec-list (type-spec (struct-def (ident ,type) (field-list . ,fields))))
@ -1971,8 +2053,7 @@
(declare name))
((decl (decl-spec-list (stor-spec (typedef)) (type-spec (fixed-type ,type))) (init-declr-list (init-declr (ident ,name))))
(let ((types (.types info)))
(clone info #:types (cons (cons name (assoc-ref types type)) types))))
(clone info #:types (cons (cons name (get-type types type)) types)))
;; int foo ();
((decl (decl-spec-list (type-spec (fixed-type ,type))) (init-declr-list (init-declr (ftn-declr (ident ,name) (param-list . ,param-list)))))
@ -1995,7 +2076,64 @@
(declare name))
;; printf (char const* format, ...)
((decl (decl-spec-list (type-spec (fixed-type ,type))) (init-declr-list (init-declr (ftn-declr (ident ,name) (param-list ,param-list . (ellipsis))))))
((decl (decl-spec-list ,type) (init-declr-list (init-declr (ftn-declr (ident ,name) (param-list ,param-list . (ellipsis))))))
(declare name))
;; <name> tcc_new
((decl (decl-spec-list ,type) (init-declr-list (init-declr (ptr-declr (pointer) (ftn-declr (ident ,name) (param-list . ,param-list))))))
(declare name))
;; extern type foo ()
((decl (decl-spec-list (stor-spec (extern)) ,type) (init-declr-list (init-declr (ftn-declr (ident ,name) (param-list . ,param-list)))))
(declare name))
;; struct TCCState;
((decl (decl-spec-list (type-spec (struct-ref (ident ,name)))))
info)
;; extern type global;
((decl (decl-spec-list (stor-spec (extern)) ,type) (init-declr-list (init-declr (ident ,name))))
info)
;; ST_DATA struct TCCState *tcc_state;
((decl (decl-spec-list (stor-spec (extern)) (type-spec (struct-ref (ident ,type)))) (init-declr-list (init-declr (ptr-declr (pointer) (ident ,name)))))
info)
;; ST_DATA int ch, tok; -- TCC, why oh why so difficult?
((decl (decl-spec-list (stor-spec (extern)) (type-spec (fixed-type ,type))) (init-declr-list (init-declr (ident ,name)) . ,rest))
info)
;; ST_DATA const int *macro_ptr;
((decl (decl-spec-list (stor-spec (extern)) (type-qual ,qual) (type-spec (fixed-type ,type))) (init-declr-list (init-declr (ptr-declr (pointer) (ident ,name)))))
info)
;; ST_DATA TokenSym **table_ident;
((decl (decl-spec-list (stor-spec (extern)) (type-spec (typename ,type))) (init-declr-list (init-declr (ptr-declr (pointer (pointer)) (ident ,name)))))
info)
;; ST_DATA Section *text_section, *data_section, *bss_section; /* predefined sections */
((decl (decl-spec-list (stor-spec (extern)) (type-spec (typename ,type))) (init-declr-list (init-declr (ptr-declr (pointer) (ident ,name))) . ,rest))
info)
;; ST_DATA void **sym_pools;
((decl (decl-spec-list (stor-spec (extern)) (type-spec (void))) (init-declr-list (init-declr (ptr-declr (pointer (pointer)) (ident ,name)))))
info)
;; ST_DATA CType char_pointer_type, func_old_type, int_type, size_type;
((decl (decl-spec-list (stor-spec (extern)) (type-spec (typename ,type))) (init-declr-list (init-declr (ident ,name)) . ,rest))
info)
;; ST_DATA SValue __vstack[1+/*to make bcheck happy*/ VSTACK_SIZE], *vtop;
;; Yay, let's hear it for the T-for Tiny in TCC!?
((decl (decl-spec-list (stor-spec (extern)) (type-spec (typename ,type))) (init-declr-list (init-declr (array-of (ident ,name) (add (p-expr (fixed ,a)) (p-expr (fixed ,b))))) (init-declr (ptr-declr (pointer) (ident ,name2)))))
info)
;; ST_DATA char *funcname;
((decl (decl-spec-list (stor-spec (extern)) (type-spec (fixed-type ,type))) (init-declr-list (init-declr (ptr-declr (pointer) (ident ,name)))))
info)
;; ST_DATA const int reg_classes[NB_REGS];
((decl (decl-spec-list (stor-spec (extern)) (type-qual ,qual) (type-spec (fixed-type ,type))) (init-declr-list (init-declr (array-of (ident ,name) (p-expr (fixed ,size))))))
info)
;; int i = 0, j = 0;
@ -2006,9 +2144,39 @@
((ast->info info)
`(decl (decl-spec-list (type-spec (fixed-type ,type))) (init-declr-list ,(car inits))))))))
;; char *foo[0], *bar;
((decl (decl-spec-list (type-spec (fixed-type ,type))) (init-declr-list (init-declr (array-of (ident ,name) ,index)) . ,rest))
(let loop ((inits `((init-declr (array-of (ident ,name) ,index)) ,@rest)) (info info))
(if (null? inits) info
(loop (cdr inits)
((ast->info info)
`(decl (decl-spec-list (type-spec (fixed-type ,type))) (init-declr-list ,(car inits))))))))
;; const char *target; silly notation, const always operates to the LEFT (except when there's no left)
((decl (decl-spec-list (type-qual ,qual) (type-spec (fixed-type ,type))) (init-declr-list (init-declr (ptr-declr (pointer) (ident ,name)))))
((ast->info info)
`(decl (decl-spec-list (type-spec (fixed-type ,type)) (type-qual ,qual)) (init-declr-list (init-declr (ptr-declr (pointer) (ident ,name)))))))
((decl (decl-spec-list (stor-spec (typedef)) (type-spec (struct-ref (ident (,type))))) (init-declr-list (init-declr (ident ,name))))
(clone info #:types (cons (cons name (or (get-type types type) `(typedef ("struct" ,type)))) types)))
((decl (decl-spec-list (stor-spec (typedef)) (type-spec (struct-ref (ident ,type)))) (init-declr-list (init-declr (ident ,name))))
(clone info #:types (cons (cons name (or (get-type types type) `(typedef ("struct" ,type)))) types)))
((decl (decl-spec-list (stor-spec (typedef)) (type-spec (struct-ref (ident ,type)))) (init-declr-list (init-declr (ident ,name))))
(clone info #:types (cons (cons name (or (get-type types type) `(typedef ("struct" ,type)))) types)))
((decl (decl-spec-list (stor-spec (typedef)) (type-spec (typename ,type))) (init-declr-list (init-declr (ident ,name))))
(clone info #:types (cons (cons name (or (get-type types type) `(typedef ,type))) types)))
((decl (decl-spec-list (stor-spec (typedef)) (type-spec (struct-def ,field-list))) (init-declr-list (init-declr (ident ,name))))
(let ((info ((ast->info info) `(decl (decl-spec-list (type-spec (struct-def (ident ,name) ,field-list))) (init-declr-list (init-declr (ident ,name)))))))
(clone info #:types (cons (cons name (or (get-type types `("struct" ,name)) `(typedef ,name))) types))))
((decl (decl-spec-list (stor-spec (typedef)) ,type) ,name)
(format (current-error-port) "SKIP: typedef=~s\n" o)
info)
info)
((decl (@ ,at))
(format (current-error-port) "SKIP: at=~s\n" o)
@ -2044,7 +2212,12 @@
((enum-defn (ident ,name) . _) name)))
(i (pmatch field
((enum-defn ,name (p-expr (fixed ,value))) (cstring->number value))
((enum-defn ,name) i))))
((enum-defn ,name) i)
((enum-defn ,name (add (p-expr (fixed ,a)) (p-expr (fixed ,b))))
(+ (cstring->number a) (cstring->number b)))
((enum-defn ,name (sub (p-expr (fixed ,a)) (p-expr (fixed ,b))))
(- (cstring->number a) (cstring->number b)))
(_ (error "not supported enum field=~s\n" field)))))
(loop (cdr fields)
(1+ i)
(append constants (list (ident->constant name i))))))))