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add %destructor statements in bison code to cleanup allocated memory also in case of syntax error bailout

This commit is contained in:
stefan schippers 2026-08-10 00:47:13 +02:00
parent 66c632fe2b
commit 12d3c9c903
1 changed files with 12 additions and 1 deletions
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13
src/expandlabel.y
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@ -304,11 +304,14 @@ int *idx; /* for bus index & bus index ranges */
%left ','
%left '*'
%destructor {my_free(_ALLOC_ID_, &$$); } <idx>
%destructor {my_free(_ALLOC_ID_, &$$.str); } <ptr>
%destructor {my_free(_ALLOC_ID_, &$$); } <str>
/* Grammar follows */
%%
line: /* empty */
line: %empty /* empty */
| list {
dbg(dbg_var, "yyparse(): list, dest_string.str=%s\n", $1.str);
my_strdup(_ALLOC_ID_, &(dest_string.str),$1.str);
@ -481,6 +484,7 @@ index: B_IDXNUM ':' B_IDXNUM ':' B_IDXNUM ':' B_IDXNUM
{
/* start : end : extend : repetitions */
int r, i, sign, offset;
(void)$1;
sign = XSIGN($5-$3);
offset = 0;
for(r=0; r < $9; r++) {
@ -498,6 +502,7 @@ index: B_IDXNUM ':' B_IDXNUM ':' B_IDXNUM ':' B_IDXNUM
int i;
int sign;
(void)$1;
sign = XSIGN($5-$3);
for(i=$3;;i+=sign*$7)
{
@ -511,6 +516,7 @@ index: B_IDXNUM ':' B_IDXNUM ':' B_IDXNUM ':' B_IDXNUM
| index ',' B_IDXNUM ':' B_IDXNUM
{
int i;
(void)$1;
for(i=$3;;i+=XSIGN($5-$3))
{
++$$[0];
@ -521,6 +527,7 @@ index: B_IDXNUM ':' B_IDXNUM ':' B_IDXNUM ':' B_IDXNUM
}
| index ',' B_IDXNUM
{
(void)$1;
++$$[0];
check_idx(&$$, $$[0]);
$$[$$[0]]=$3;
@ -579,6 +586,7 @@ index_nobracket: B_IDXNUM B_DOUBLEDOT B_IDXNUM B_DOUBLEDOT B_IDXNUM B_DOUBLEDOT
{
/* start .. end .. offset .. repetitions */
int r, i, sign, offset;
(void)$1;
sign = XSIGN($5-$3);
offset = 0;
for(r=0; r < $9; r++) {
@ -596,6 +604,7 @@ index_nobracket: B_IDXNUM B_DOUBLEDOT B_IDXNUM B_DOUBLEDOT B_IDXNUM B_DOUBLEDOT
int i;
int sign;
(void)$1;
sign = XSIGN($5-$3);
for(i=$3;;i+=sign*$7)
{
@ -609,6 +618,7 @@ index_nobracket: B_IDXNUM B_DOUBLEDOT B_IDXNUM B_DOUBLEDOT B_IDXNUM B_DOUBLEDOT
| index_nobracket ',' B_IDXNUM B_DOUBLEDOT B_IDXNUM
{
int i;
(void)$1;
for(i=$3;;i+=XSIGN($5-$3))
{
++$$[0];
@ -619,6 +629,7 @@ index_nobracket: B_IDXNUM B_DOUBLEDOT B_IDXNUM B_DOUBLEDOT B_IDXNUM B_DOUBLEDOT
}
| index_nobracket ',' B_IDXNUM
{
(void)$1;
++$$[0];
check_idx(&$$, $$[0]);
$$[$$[0]]=$3;