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Code Issues Projects Releases Packages Wiki Activity Actions 17

Don't allow assignment to attributes named __*__

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This commit is contained in:
Guido van Rossum 1992-04-05 14:24:32 +00:00
parent 5113f5fd34
commit 8dd79cf788
1 changed files with 16 additions and 2 deletions
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16
Objects/classobject.c
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@ -1,5 +1,5 @@
/*********************************************************** /***********************************************************
Copyright 1991 by Stichting Mathematisch Centrum, Amsterdam, The Copyright 1991, 1992 by Stichting Mathematisch Centrum, Amsterdam, The
Netherlands. Netherlands.
All Rights Reserved All Rights Reserved
@ -122,6 +122,13 @@ class_setattr(op, name, v)
char *name; char *name;
object *v; object *v;
{ {
if (name[0] == '_' && name[1] == '_') {
int n = strlen(name);
if (name[n-1] == '_' && name[n-2] == '_') {
err_setstr(TypeError, "read-only special attribute");
return -1;
}
}
if (v == NULL) if (v == NULL)
return dictremove(op->cl_methods, name); return dictremove(op->cl_methods, name);
else else
@ -226,6 +233,13 @@ instance_setattr(inst, name, v)
char *name; char *name;
object *v; object *v;
{ {
if (name[0] == '_' && name[1] == '_') {
int n = strlen(name);
if (name[n-1] == '_' && name[n-2] == '_') {
err_setstr(TypeError, "read-only special attribute");
return -1;
}
}
if (v == NULL) if (v == NULL)
return dictremove(inst->in_attr, name); return dictremove(inst->in_attr, name);
else else