Common.winxed

$include_const 'datatypes.pasm';
$include_const "iglobals.pasm";

const int DATATYPE_SIZE_T = DATATYPE_LONG; // TODO: probe for appropriate type
const int DATATYPE_GIT_TIME_T = DATATYPE_INT64; // TODO: probe for support
const int DATATYPE_GIT_OFF_T  = DATATYPE_INT64; // ditto

const int GIT_OID_RAWSZ = 20; // TODO: probe for value 

function int_t[anon]() {
  return new 'StructView'([DATATYPE_STRUCT, 1, DATATYPE_INT]);
}

function char_t[anon]() {
  return new 'StructView'([DATATYPE_STRUCT, 1, DATATYPE_CHAR]);
}

function cstring(string s) {
    var str_to_cstring = dlfunc(null, 'Parrot_str_to_cstring', 'ppS');
    return str_to_cstring(getinterp(), s);
}

namespace Git2 {

  class Branch {
    function Branch() {
        /*
        struct git_branch {
        char *remote;
        char *merge;
        };
        */
        return new 'StructView'([ DATATYPE_STRUCT, 2,
            DATATYPE_PTR,
            DATATYPE_PTR
        ]);
    }
  }

  class Common {
  function git_strarray() {
    /*
      typedef struct {
	char **strings;
	size_t count;
      } git_strarray;
    */
    return new 'StructView'([ DATATYPE_STRUCT, 2, 
	DATATYPE_PTR,
	DATATYPE_SIZE_T
    ]);
  }

  function git_config_file() {
    /*
      struct git_config_file {
	struct git_config *cfg;

	int (*open)(struct git_config_file *);
	int (*get)(struct git_config_file *, const char *key, const char **value);
	int (*set)(struct git_config_file *, const char *key, const char *value);
	int (*foreach)(struct git_config_file *, int (*fn)(const char *, void *), void *data);
	void (*free)(struct git_config_file *);
      };
    */
    return new 'StructView'([ DATATYPE_STRUCT, 6,
	DATATYPE_PTR,
	DATATYPE_FUNC_PTR,
	DATATYPE_FUNC_PTR,
	DATATYPE_FUNC_PTR,
	DATATYPE_FUNC_PTR,
	DATATYPE_FUNC_PTR
    ]);
  }

  function git_index_time() {
    /*
      typedef struct {
	git_time_t seconds;
	unsigned int nanoseconds;
      } git_index_time;
    */
    return new 'StructView'([ DATATYPE_STRUCT, 2,
	DATATYPE_GIT_TIME_T,
	DATATYPE_UINT
    ]);
  }

  function git_index_entry() {
    /*
      typedef struct git_index_entry {
	git_index_time ctime;
	git_index_time mtime;

	unsigned int dev;
	unsigned int ino;
	unsigned int mode;
	unsigned int uid;
	unsigned int gid;
	git_off_t file_size;

	git_oid oid;

	unsigned short flags;
	unsigned short flags_extended;

	const char *path;
      } git_index_entry;
    */
    return new 'StructView'([ DATATYPE_STRUCT, 12,
	DATATYPE_SIZED, git_index_time().size(), git_index_time().align(),
	DATATYPE_SIZED, git_index_time().size(), git_index_time().align(),
	DATATYPE_UINT,
	DATATYPE_UINT,
	DATATYPE_UINT,
	DATATYPE_UINT,
	DATATYPE_UINT,
	DATATYPE_GIT_OFF_T,
	DATATYPE_SIZED, git_oid().size(), git_oid().align(),
	DATATYPE_USHORT,
	DATATYPE_USHORT,
	DATATYPE_PTR
    ]);
  }

  function git_index_entry_unmerged() {
    /*
      typedef struct git_index_entry_unmerged {
	unsigned int mode[3];
	git_oid oid[3];
	const char *path;
      } git_index_entry_unmerged;
    */
    return new 'StructView'([ DATATYPE_STRUCT, 3,
	DATATYPE_SIZED, int_t().size()*3, int_t().align(),
	DATATYPE_SIZED, git_oid().aligned_size()*2 + git_oid().size(), git_oid().align,
	DATATYPE_PTR
    ]);
  }

  function git_remote_head() {
    /*
      struct git_remote_head {
	git_oid oid;
	char *name;
      };
    */
    return new 'StructView'([ DATATYPE_STRUCT, 2,
	DATATYPE_SIZED, git_oid().size(), git_oid().align(),
	DATATYPE_PTR
    ]);
  }

  function git_head_array() {
    /*
      struct git_headarray {
	unsigned int len;
	struct git_remote_head **heads;
      };
    */
    return new 'StructView'([ DATATYPE_STRUCT, 2,
	DATATYPE_UINT,
	DATATYPE_PTR
    ]);
  }

  function git_odb_backend() {
    /*
      struct git_odb_backend {
	git_odb *odb;

	int (* read)(
	    void **, size_t *, git_otype *,
	    struct git_odb_backend *,
	    const git_oid *);

	int (* read_prefix)(
	    git_oid *,
	    void **, size_t *, git_otype *,
	    struct git_odb_backend *,
	    const git_oid *,
	    unsigned int);

	int (* read_header)(
	    size_t *, git_otype *,
	    struct git_odb_backend *,
	    const git_oid *);

	int (* write)(
	    git_oid *,
	    struct git_odb_backend *,
	    const void *,
	    size_t,
	    git_otype);

	int (* writestream)(
	    struct git_odb_stream **,
	    struct git_odb_backend *,
	    size_t,
	    git_otype);

	int (* readstream)(
	    struct git_odb_stream **,
	    struct git_odb_backend *,
	    const git_oid *);

	int (* exists)(
	    struct git_odb_backend *,
	    const git_oid *);

	void (* free)(struct git_odb_backend *);
      };
    */
    return new 'StructView'([ DATATYPE_STRUCT, 9,
	DATATYPE_PTR,
	DATATYPE_FUNC_PTR,
	DATATYPE_FUNC_PTR,
	DATATYPE_FUNC_PTR,
	DATATYPE_FUNC_PTR,
	DATATYPE_FUNC_PTR,
	DATATYPE_FUNC_PTR,
	DATATYPE_FUNC_PTR,
	DATATYPE_FUNC_PTR
    ]);
  }


  function git_odb_stream() {
    /*
      struct git_odb_stream {
	struct git_odb_backend *backend;
	int mode;

	int (*read)(struct git_odb_stream *stream, char *buffer, size_t len);
	int (*write)(struct git_odb_stream *stream, const char *buffer, size_t len);
	int (*finalize_write)(git_oid *oid_p, struct git_odb_stream *stream);
	void (*free)(struct git_odb_stream *stream);
      };
    */
    return new 'StructView'([ DATATYPE_STRUCT, 6,
	DATATYPE_PTR,
	DATATYPE_INT,
	DATATYPE_FUNC_PTR,
	DATATYPE_FUNC_PTR,
	DATATYPE_FUNC_PTR,
	DATATYPE_FUNC_PTR
    ]);
  }

  function git_oid() {
    /*
      typedef struct {
	unsigned char id[GIT_OID_RAWSZ];
      } git_oid;
    */
    return new 'StructView'([ DATATYPE_STRUCT, 1,
	DATATYPE_SIZED, char_t().size()*GIT_OID_RAWSZ, char_t().align()
    ]);
  }

  function git_time() {
    /*
      typedef struct git_time {
	git_time_t time;
	int offset;
      } git_time;
    */
    return new 'StructView'([ DATATYPE_STRUCT, 2,
	DATATYPE_GIT_TIME_T,
	DATATYPE_INT
    ]);
  }

  function git_signature() {
    /*
      typedef struct git_signature {
	char *name;
	char *email;
	git_time when;
      } git_signature;
    */
    return new 'StructView'([ DATATYPE_STRUCT, 3,
	DATATYPE_PTR,
	DATATYPE_PTR,
	DATATYPE_SIZED, git_time().size(), git_time().align()
    ]);
  }
  }

}