Changes in src/SynTree/Expression.cc [d5556a3:8bf784a]

File:

• src/SynTree/Expression.cc (modified) (2 diffs)

src/SynTree/Expression.cc

@@ -438 +438 @@
 }
 
-NameExpr::NameExpr( std::string _name, Expression *_aname ) : Expression( _aname ), name(_name) {}
+NameExpr::NameExpr( std::string _name, Expression *_aname ) : Expression( _aname ), name(_name) {
+        assertf(_name != "0", "Zero is not a valid name\n");
+        assertf(_name != "1", "One is not a valid name\n");
+}
 
 NameExpr::NameExpr( const NameExpr &other ) : Expression( other ), name( other.name ) {
@@ -669 +672 @@
 
 std::ostream & operator<<( std::ostream & out, const Expression * expr ) {
-        expr->print( out );
+        if ( expr ) {
+                expr->print( out );
+        } else {
+                out << "nullptr";
+        }
         return out;
 }