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xo-object: generative GC utest + reinstate coverage build

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This commit is contained in:
Roland Conybeare 2025-08-06 09:30:37 -05:00
commit e80304a09b
18 changed files with 625 additions and 28 deletions
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10
xo-object/include/xo/object/String.hpp
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@ -10,11 +10,13 @@ namespace xo {
namespace obj {
class String : public Object {
public:
enum Owner { unique, shared };
enum class owner { unique, shared };
/** donwcast from @p x iff x is actually a String. Otherwise nullptr **/
static gp<String> from(gp<Object> x);
/** create shared string @p s, using allocator @ref Object::mm **/
static gp<String> share(const char * s);
/** create copy of string @p s, using allocator @ref Object::mm **/
static gp<String> copy(const char * s);
/** create copy of string @p s, using allocator @p mm **/
@ -35,14 +37,14 @@ namespace xo {
virtual std::size_t _forward_children() override;
private:
String(Owner owner, std::size_t z, char * s);
String(owner owner, std::size_t z, char * s);
/** create instance, copying string contents (when @p copy_flag is true) using allocator @p mm **/
String(gc::IAlloc * mm, Owner owner, std::size_t z, char * s, bool copy);
String(gc::IAlloc * mm, owner owner, std::size_t z, char * s);
private:
/** true iff storage in @ref chars_ is owned by this String.
**/
Owner owner_ = Owner::shared;
owner owner_ = owner::shared;
/** length of @ref chars_ in bytes (storage allocated, not necessarily string length) **/
std::size_t z_chars_ = 0;
/** string contents. always null-terminated **/