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Fix crash on exit (addresses #607).

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MutableVal's destructor now checks if the global scope still exists
before trying to remove an identifier from it.
This commit is contained in:
Jon Siwek 2011-09-12 13:16:48 -05:00
parent 2d85ab9818
commit a267c30fcd
2 changed files with 5 additions and 3 deletions
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2
src/Scope.cc
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@ -219,5 +219,5 @@ Scope* current_scope()
Scope* global_scope()
{
return scopes[0];
return scopes.length() == 0 ? 0 : scopes[0];
}

2
src/Val.cc
View file

@ -638,6 +638,7 @@ MutableVal::~MutableVal()
{
for ( list<ID*>::iterator i = aliases.begin(); i != aliases.end(); ++i )
{
if ( global_scope() )
global_scope()->Remove((*i)->Name());
(*i)->ClearVal(); // just to make sure.
Unref((*i));
@ -645,6 +646,7 @@ MutableVal::~MutableVal()
if ( id )
{
if ( global_scope() )
global_scope()->Remove(id->Name());
id->ClearVal(); // just to make sure.
Unref(id);