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Use pre-created string objects for most common exceptions

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(especially IndexError which is caught by 'for')
This commit is contained in:
Guido van Rossum 1996-08-09 20:51:27 +00:00
parent 86c04c252b
commit 929f1b83ea
1 changed files with 8 additions and 2 deletions
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10
Objects/listobject.c
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@ -97,6 +97,8 @@ getlistsize(op)
return ((listobject *)op) -> ob_size; return ((listobject *)op) -> ob_size;
} }
static object *indexerr;
object * object *
getlistitem(op, i) getlistitem(op, i)
object *op; object *op;
@ -107,7 +109,9 @@ getlistitem(op, i)
return NULL; return NULL;
} }
if (i < 0 || i >= ((listobject *)op) -> ob_size) { if (i < 0 || i >= ((listobject *)op) -> ob_size) {
err_setstr(IndexError, "list index out of range"); if (indexerr == NULL)
indexerr = newstringobject("list index out of range");
err_setval(IndexError, indexerr);
return NULL; return NULL;
} }
return ((listobject *)op) -> ob_item[i]; return ((listobject *)op) -> ob_item[i];
@ -274,7 +278,9 @@ list_item(a, i)
int i; int i;
{ {
if (i < 0 || i >= a->ob_size) { if (i < 0 || i >= a->ob_size) {
err_setstr(IndexError, "list index out of range"); if (indexerr == NULL)
indexerr = newstringobject("list index out of range");
err_setval(IndexError, indexerr);
return NULL; return NULL;
} }
INCREF(a->ob_item[i]); INCREF(a->ob_item[i]);