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fixed memory fault, adapted mechanism code_scope

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This commit is contained in:
ceriel 1989-11-01 15:41:06 +00:00
parent d72e4424cd
commit 2db075ab69
3 changed files with 18 additions and 20 deletions
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8
lang/cem/cemcom/code.c
View file

@ -382,11 +382,6 @@ code_declaration(idf, expr, lvl, sc)
return; return;
if (sc == EXTERN && expr && !is_anon_idf(idf)) if (sc == EXTERN && expr && !is_anon_idf(idf))
error("%s is extern; cannot initialize", idf->id_text); error("%s is extern; cannot initialize", idf->id_text);
#ifndef PREPEND_SCOPES
if (def->df_type->tp_fund == FUNCTION) {
code_scope(idf->id_text, def);
}
#endif PREPEND_SCOPES
if (lvl == L_GLOBAL) { /* global variable */ if (lvl == L_GLOBAL) { /* global variable */
/* is this an allocating declaration? */ /* is this an allocating declaration? */
if ( (sc == 0 || sc == STATIC) if ( (sc == 0 || sc == STATIC)
@ -429,9 +424,6 @@ code_declaration(idf, expr, lvl, sc)
case GLOBAL: case GLOBAL:
case IMPLICIT: case IMPLICIT:
/* we are sure there is no expression */ /* we are sure there is no expression */
#ifndef PREPEND_SCOPES
code_scope(idf->id_text, def);
#endif PREPEND_SCOPES
break; break;
case AUTO: case AUTO:
case REGISTER: case REGISTER:

6
lang/cem/cemcom/expr.c
View file

@ -22,6 +22,7 @@
#include "sizes.h" #include "sizes.h"
#include "level.h" #include "level.h"
#include "noRoption.h" #include "noRoption.h"
#include "use_tmp.h"
extern char *symbol2str(); extern char *symbol2str();
extern char options[]; extern char options[];
@ -183,7 +184,12 @@ idf2expr(expr)
} }
else { else {
#ifndef LINT #ifndef LINT
if (! def->df_used) {
def->df_used = 1; def->df_used = 1;
#ifndef PREPEND_SCOPES
code_scope(idf->id_text, def);
#endif PREPEND_SCOPES
}
#endif LINT #endif LINT
expr->ex_type = def->df_type; expr->ex_type = def->df_type;
if (expr->ex_type == error_type) if (expr->ex_type == error_type)

22
lang/cem/cemcom/ival.g
View file

@ -38,6 +38,7 @@ char *long2str();
char *strncpy(); char *strncpy();
extern char options[]; extern char options[];
static int gen_error; static int gen_error;
static int pack_level;
struct type **gen_tphead(), **gen_tpmiddle(); struct type **gen_tphead(), **gen_tpmiddle();
struct sdef *gen_align_to_next(); struct sdef *gen_align_to_next();
struct e_stack *p_stack; struct e_stack *p_stack;
@ -69,7 +70,6 @@ initial_value(register struct type **tpp; register struct expr **expp;) :
; ;
initial_value_pack(struct type **tpp; struct expr **expp;) initial_value_pack(struct type **tpp; struct expr **expp;)
{ static int pack_level; }
: :
'{' '{'
{ if (pack_level == 0) gen_error = 0; pack_level++; } { if (pack_level == 0) gen_error = 0; pack_level++; }
@ -83,6 +83,7 @@ initial_value_pack(struct type **tpp; struct expr **expp;)
p_stack = p; p_stack = p;
} }
} }
if (pack_level < gen_error) gen_error = 0;
} }
'}' '}'
; ;
@ -115,20 +116,20 @@ gen_tpcheck(tpp, union_allowed)
switch((tp = *tpp)->tp_fund) { switch((tp = *tpp)->tp_fund) {
case ARRAY: case ARRAY:
if (! valid_type(tp->tp_up, "array element")) if (! valid_type(tp->tp_up, "array element"))
gen_error = 1; gen_error = pack_level;
break; break;
case STRUCT: case STRUCT:
if (! valid_type(tp, "struct")) if (! valid_type(tp, "struct"))
gen_error = 1; gen_error = pack_level;
break; break;
case UNION: case UNION:
if (! union_allowed) { if (! union_allowed) {
error("union initialisation not allowed"); error("union initialisation not allowed");
gen_error = 1; gen_error = pack_level;
break; break;
} }
if (! valid_type(tp, "union")) if (! valid_type(tp, "union"))
gen_error = 1; gen_error = pack_level;
break; break;
} }
} }
@ -152,7 +153,7 @@ gen_simple_exp(tpp, expp)
check_and_pad(expp, tpp); check_and_pad(expp, tpp);
break; break;
case ERRONEOUS: case ERRONEOUS:
gen_error = 1; gen_error = pack_level;
break; break;
default: default:
check_ival(expp, tp); check_ival(expp, tp);
@ -200,7 +201,7 @@ gen_tphead(tpp, nest)
register struct sdef *sd; register struct sdef *sd;
if (tpp && *tpp == error_type) { if (tpp && *tpp == error_type) {
gen_error = 1; gen_error = pack_level;
return 0; return 0;
} }
if (gen_error) return tpp; if (gen_error) return tpp;
@ -229,7 +230,7 @@ gen_tphead(tpp, nest)
#endif #endif
if (! sd) { if (! sd) {
/* something wrong with this struct */ /* something wrong with this struct */
gen_error = 1; gen_error = pack_level;
p_stack = p->next; p_stack = p->next;
free_e_stack(p); free_e_stack(p);
return 0; return 0;
@ -358,7 +359,6 @@ gen_tpend()
free_e_stack(p_stack); free_e_stack(p_stack);
p_stack = p; p_stack = p;
} }
gen_error = 0;
} }
/* check_and_pad() is given a simple initialisation expression /* check_and_pad() is given a simple initialisation expression
@ -687,12 +687,12 @@ illegal_init_cst(ex)
struct expr *ex; struct expr *ex;
{ {
expr_error(ex, "illegal initialisation constant"); expr_error(ex, "illegal initialisation constant");
gen_error = 1; gen_error = pack_level;
} }
too_many_initialisers() too_many_initialisers()
{ {
error("too many initialisers"); error("too many initialisers");
gen_error = 1; gen_error = pack_level;
} }
} }