disable copyctor

git-svn-id: https://swig.svn.sourceforge.net/svnroot/swig/trunk/SWIG@8036 626c5289-ae23-0410-ae9c-e8d60b6d4f22
This commit is contained in:
Marcelo Matus 2005-12-22 08:38:02 +00:00
commit d812f5fe5e
5 changed files with 54 additions and 60 deletions

View file

@ -334,11 +334,11 @@ disable the implicit constructor/desctructor generation manually.
</p>
<p>
To do so, the <tt>%nodefaultctor</tt>, <tt>%nodefaultdtor</tt> and
<tt>%nocopyctor</tt>directives can be used. Note that these directives
only affects the implicit generation, and they have no effect if
the default/copy constructors or destructor are explicitly declared in
the class interface.
To do so, the <tt>%nodefaultctor</tt> and <tt>%nodefaultdtor</tt>
directives can be used. Note that these directives only affects the
implicit generation, and they have no effect if the default/copy
constructors or destructor are explicitly declared in the class
interface.
</p>
<p>
@ -371,7 +371,7 @@ class Bar {
public:
Bar(); // The default constructor is generated, since is declared
};
%defaultctor; // Enable the creation of default constructors again
%clearnodefaultctor; // Enable the creation of default constructors again
</pre>
</div>
@ -392,30 +392,6 @@ class Foo { // No destructor is generated, unless is declared
</pre>
</div>
<p>
The <tt>%nocopyctor</tt> disable the automatic generation of the copy
constructor, but also has no effect over classes that explicitly
declare a public copy constructor:
</p>
<div class="code">
<pre>
%nocopytor Foo; // Disable the copy constructor for class Foo.
class Foo {
public:
Foo();
};
%nocopytor Bar; // Has no effect on Bar
class Bar {
public:
Bar(const Bar& b); // Copy constructor is generated
};
</pre>
</div>
<p>
</p>
<p>
<b>Compatibility Note:</b> The generation of default
constructors/implicit destructors was made the default behavior in SWIG

View file

@ -90,7 +90,6 @@ CPP_TEST_CASES += \
const_const_2 \
constant_pointers \
constover \
constructor_copy \
constructor_exception \
constructor_explicit \
constructor_value \

View file

@ -570,7 +570,8 @@ public:
/* If class is abstract. No default constructor. Sorry */
if (Getattr(n,"abstract")) {
Delattr(n,"allocate:default_constructor");
} else if (!Getattr(n,"allocate:default_constructor")) {
}
if (!Getattr(n,"allocate:default_constructor")) {
/* Check base classes */
List *bases = Getattr(n,"allbases");
int allows_default = 1;
@ -588,7 +589,10 @@ public:
}
}
if (!Getattr(n,"allocate:has_copy_constructor")) {
if (!Getattr(n,"allocate:copy_constructor") && !Getattr(n,"abstract")) {
if (Getattr(n,"abstract")) {
Delattr(n,"allocate:copy_constructor");
}
if (!Getattr(n,"allocate:copy_constructor")) {
/* Check base classes */
List *bases = Getattr(n,"allbases");
int allows_copy = 1;

View file

@ -352,7 +352,7 @@ void swig_pragma(char *lang, char *name, char *value) {
GenerateDefault = 1;
} else if ((strcmp(name,"no_default") == 0) || ((strcmp(name,"nodefault") == 0))) {
Swig_warning(WARN_DEPRECATED_NODEFAULT, "SWIG",1,
"dangerous, use %nodefaultctor, %nodefaultdtor or %nocopyctor instead.\n");
"dangerous, use %nodefaultctor, %nodefaultdtor instead.\n");
GenerateDefault = 0;
} else if (strcmp(name,"attributefunction") == 0) {
String *nvalue = NewString(value);
@ -2050,7 +2050,7 @@ static Node *makeCopyConstructor(Node *n)
Swig_symbol_setscope(oldscope);
return cn;
}
/*
static Node *makeConstructor(Node *n)
{
Node *cn = NewHash();
@ -2067,6 +2067,30 @@ static Node *makeConstructor(Node *n)
Swig_symbol_setscope(oldscope);
return cn;
}
*/
static Node *makeConstructor(Node *n)
{
Node *cn = Copy(n);
String *name = Getattr(n,"name");
String *rname = 0;
String *dname = NewStringf("%s::",name);
if (SwigType_istemplate(name)) {
rname = SwigType_templateprefix(name);
name = rname;
}
String *lname = Swig_scopename_last(name);
Append(dname,lname);
SetFlag(cn,"feature:new");
Setattr(cn,"decl","f().");
Swig_features_get(Swig_cparse_features(), 0, dname, Getattr(cn,"decl"), cn);
Delete(rname);
Delete(dname);
Delete(lname);
return cn;
}
static Node *makeDestructor(Node *n)
{
@ -2095,28 +2119,6 @@ int Language::classHandler(Node *n) {
bool hasDirector = Swig_directorclass(n) ? true : false;
int odefault = (GenerateDefault && !GetFlag(n,"feature:nodefault"));
if (!ImportMode && (!GetFlag(n,"feature:nocopyctor")) && odefault) {
if (!Getattr(n,"has_copy_constructor") && !Getattr(n,"allocate:has_copy_constructor")
&& (Getattr(n,"allocate:copy_constructor"))) {
if (!Abstract) {
Node *cn = makeCopyConstructor(CurrentClass);
appendChild(n,cn);
}
}
}
cplus_mode = PUBLIC;
if (!ImportMode && !GetFlag(n,"feature:nodefaultctor") && odefault) {
if (!Getattr(n,"has_constructor") && !Getattr(n,"allocate:has_constructor")
&& (Getattr(n,"allocate:default_constructor"))) {
/* Note: will need to change this to support different kinds of classes */
if (!Abstract) {
Node *cn = makeConstructor(CurrentClass);
appendChild(n,cn);
}
}
}
/* Emit all of the class members */
emit_children(n);
@ -2132,6 +2134,18 @@ int Language::classHandler(Node *n) {
SmartPointer = 0;
}
cplus_mode = PUBLIC;
int odefault = (GenerateDefault && !GetFlag(n,"feature:nodefault"));
if (!ImportMode && (GenerateDefault && !GetFlag(n,"feature:nodefault"))) {
if (!Getattr(n,"has_constructor") && !Getattr(n,"allocate:has_constructor") && (Getattr(n,"allocate:default_constructor"))) {
/* Note: will need to change this to support different kinds of classes */
if (!Abstract) {
Node *cn = makeConstructor(CurrentClass);
constructorHandler(cn);
Delete(cn);
}
}
}
if (!ImportMode && !GetFlag(n,"feature:nodefaultdtor") && odefault) {
if (!Getattr(n,"has_destructor") && (!Getattr(n,"allocate:has_destructor"))
&& (Getattr(n,"allocate:default_destructor"))) {

View file

@ -85,8 +85,7 @@ static const char *usage2 = (const char*)"\
-nocontract - Turn off contract checking \n\
-nodefault - Do not generate constructors, destructor or copy constructors (dangerous, don't use it)\n\
-nodefaultctor - Do not generate implicit default constructors\n\
-nodefaultdctor - Do not generate implicit default destructors (dangerous, use %nodefaultdtor instead)\n\
-nocopyctor - Do not generate implicit copy constructors\n\
-nodefaultdtor - Do not generate implicit default destructors (dangerous, use %nodefaultdtor instead)\n\
-nodirprot - Do not wrap director protected members\n\
-noexcept - Do not wrap exception specifiers\n\
-addextern - Add extra extern declarations\n\
@ -448,7 +447,7 @@ void SWIG_getoptions(int argc, char *argv[])
} else if ((strcmp(argv[i],"-no_default") == 0) || (strcmp(argv[i],"-nodefault") == 0)) {
GenerateDefault = 0;
Swig_warning(WARN_DEPRECATED_NODEFAULT, "SWIG",1,
"dangerous, use -nodefaultctor, -nodefaultdtor or -nocopyctor instead.\n");
"dangerous, use -nodefaultctor, -nodefaultdtor instead.\n");
Swig_mark_arg(i);
} else if ((strcmp(argv[i],"-nodefaultctor") == 0)) {
SWIG_setfeature("feature:nodefaultctor","1");
@ -456,9 +455,11 @@ void SWIG_getoptions(int argc, char *argv[])
} else if ((strcmp(argv[i],"-nodefaultdtor") == 0)) {
SWIG_setfeature("feature:nodefaultdtor","1");
Swig_mark_arg(i);
#if 0
} else if ((strcmp(argv[i],"-nocopyctor") == 0)) {
SWIG_setfeature("feature:nocopyctor","1");
Swig_mark_arg(i);
#endif
} else if (strcmp(argv[i],"-noexcept") == 0) {
NoExcept = 1;
Swig_mark_arg(i);