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Handle PyString_FromInternedString() failing (unlikely, but possible). 

Klocwork #325

(I'm not backporting this, but if someone wants to, feel free.)
This commit is contained in:
Neal Norwitz 2006-08-19 04:52:03 +00:00
parent 7fd9607bad
commit 7605936dee
1 changed files with 8 additions and 9 deletions
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17
Python/symtable.c
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@ -221,8 +221,8 @@ PySymtable_Build(mod_ty mod, const char *filename, PyFutureFeatures *future)
return st;
st->st_filename = filename;
st->st_future = future;
if (!symtable_enter_block(st, GET_IDENTIFIER(top), ModuleBlock,
(void *)mod, 0)) {
if (!GET_IDENTIFIER(top) ||
!symtable_enter_block(st, top, ModuleBlock, (void *)mod, 0)) {
PySymtable_Free(st);
return NULL;
}
@ -1123,12 +1123,13 @@ symtable_visit_expr(struct symtable *st, expr_ty e)
VISIT(st, expr, e->v.UnaryOp.operand);
break;
case Lambda_kind: {
if (!symtable_add_def(st, GET_IDENTIFIER(lambda), DEF_LOCAL))
if (!GET_IDENTIFIER(lambda) ||
!symtable_add_def(st, lambda, DEF_LOCAL))
return 0;
if (e->v.Lambda.args->defaults)
VISIT_SEQ(st, expr, e->v.Lambda.args->defaults);
/* XXX how to get line numbers for expressions */
if (!symtable_enter_block(st, GET_IDENTIFIER(lambda),
if (!symtable_enter_block(st, lambda,
FunctionBlock, (void *)e, 0))
return 0;
VISIT_IN_BLOCK(st, arguments, e->v.Lambda.args, (void*)e);
@ -1404,8 +1405,8 @@ symtable_visit_genexp(struct symtable *st, expr_ty e)
/* Outermost iterator is evaluated in current scope */
VISIT(st, expr, outermost->iter);
/* Create generator scope for the rest */
if (!symtable_enter_block(st, GET_IDENTIFIER(genexpr),
FunctionBlock, (void *)e, 0)) {
if (!GET_IDENTIFIER(genexpr) ||
!symtable_enter_block(st, genexpr, FunctionBlock, (void *)e, 0)) {
return 0;
}
st->st_cur->ste_generator = 1;
@ -1419,7 +1420,5 @@ symtable_visit_genexp(struct symtable *st, expr_ty e)
VISIT_SEQ_TAIL_IN_BLOCK(st, comprehension,
e->v.GeneratorExp.generators, 1, (void*)e);
VISIT_IN_BLOCK(st, expr, e->v.GeneratorExp.elt, (void*)e);
if (!symtable_exit_block(st, (void *)e))
return 0;
return 1;
return symtable_exit_block(st, (void *)e);
}