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#ifndef GU_SEQ_H_
#define GU_SEQ_H_
#include <gu/mem.h>
#include <gu/bits.h>
typedef struct GuBuf GuBuf;
typedef GuOpaque() GuSeq;
GuSeq
gu_empty_seq();
GuSeq
gu_make_seq(size_t elem_size, size_t len, GuPool* pool);
#define gu_new_seq(T, N, POOL) \
gu_make_seq(sizeof(T), (N), (POOL))
static inline size_t
gu_seq_length(GuSeq seq)
{
GuWord w = seq.w_;
size_t tag = gu_tagged_tag(w);
if (tag == 0) {
GuWord* p = gu_tagged_ptr(w);
return (size_t) (p[-1] >> 1);
}
return tag;
}
static inline void*
gu_seq_data(GuSeq seq)
{
GuWord w = seq.w_;
int tag = gu_tagged_tag(w);
void* ptr = gu_tagged_ptr(w);
if (tag == 0) {
GuWord* p = ptr;
if (p[-1] & 0x1) {
return *(uint8_t**) ptr;
}
}
return ptr;
}
static inline bool
gu_seq_is_null(GuSeq seq)
{
return (gu_tagged_ptr(seq.w_)) == NULL;
}
#define gu_seq_index(SEQ, T, I) \
(&((T*)gu_seq_data(SEQ))[I])
#define gu_seq_get(SEQ, T, I) \
(*gu_seq_index(SEQ, T, I))
#define gu_seq_set(SEQ, T, I, V) \
GU_BEGIN \
(*gu_seq_index(SEQ, T, I) = (V)); \
GU_END
GuBuf*
gu_seq_buf(GuSeq seq);
GuSeq
gu_buf_seq(GuBuf* buf);
GuBuf*
gu_make_buf(size_t elem_size, GuPool* pool);
#define gu_new_buf(T, POOL) \
gu_make_buf(sizeof(T), (POOL))
size_t
gu_buf_length(GuBuf* buf);
size_t
gu_buf_avail(GuBuf* buf);
void*
gu_buf_data(GuBuf* buf);
#define gu_buf_index(BUF, T, I) \
(&((T*)gu_buf_data(BUF))[I])
#define gu_buf_get(BUF, T, I) \
(*gu_buf_index(BUF, T, I))
#define gu_buf_set(BUF, T, I) \
GU_BEGIN \
(*gu_buf_index(BUF, T, I) = (V)); \
GU_END
void
gu_buf_push_n(GuBuf* buf, const void* elems, size_t n_elems);
void*
gu_buf_extend_n(GuBuf* buf, size_t n_elems);
void*
gu_buf_extend(GuBuf* buf);
#define gu_buf_push(BUF, T, VAL) \
GU_BEGIN \
((*(T*)gu_buf_extend(BUF)) = (VAL)); \
GU_END
void
gu_buf_pop_n(GuBuf* buf, size_t n_elems, void* data_out);
const void*
gu_buf_trim_n(GuBuf* buf, size_t n_elems);
const void*
gu_buf_trim(GuBuf* buf);
#define gu_buf_pop(BUF, T) \
(*(T*)gu_buf_trim(BUF))
void
gu_seq_resize_tail(GuSeq seq, ptrdiff_t change);
// Using a buffer as a heap
void
gu_buf_heap_push(GuBuf *buf, GuOrder *order, void *value);
void
gu_buf_heap_pop(GuBuf *buf, GuOrder *order, void* data_out);
void
gu_buf_heap_replace(GuBuf *buf, GuOrder *order, void *value, void *data_out);
void
gu_buf_heapify(GuBuf *buf, GuOrder *order);
#if 0
void
gu_buf_resize_head(GuBuf* buf, ptrdiff_t change);
void
gu_buf_unshift(GuBuf* buf, const void* data, size_t size);
void
gu_buf_shift(GuBuf* buf, size_t size, void* data_out);
#endif
GuSeq
gu_buf_freeze(GuBuf* buf, GuPool* pool);
extern const GuSeq gu_null_seq;
#define GU_NULL_SEQ { .w_ = (GuWord)(void*)NULL }
typedef GuSeq GuChars;
typedef GuSeq GuBytes;
typedef GuBuf GuCharBuf;
typedef GuBuf GuByteBuf;
char*
gu_chars_str(GuChars chars, GuPool* pool);
#endif // GU_SEQ_H_
#if defined(GU_OUT_H_) && !defined(GU_SEQ_H_OUT_)
#define GU_SEQ_H_OUT_
GuOut*
gu_buf_out(GuBuf* buf, GuPool* pool);
#endif
#if defined(GU_TYPE_H_) && !defined(GU_SEQ_H_TYPE_)
#define GU_SEQ_H_TYPE_
extern GU_DECLARE_KIND(GuSeq);
extern GU_DECLARE_KIND(GuBuf);
struct GuSeqType {
GuType_GuOpaque opaque_base;
GuType* elem_type;
};
typedef const struct GuSeqType GuSeqType, GuType_GuSeq;
#define GU_TYPE_INIT_GuSeq(k_, t_, elem_type_) { \
.opaque_base = GU_TYPE_INIT_GuOpaque(k_, t_, _), \
.elem_type = elem_type_, \
}
typedef struct GuBufType GuBufType, GuType_GuBuf;
struct GuBufType {
GuType_abstract abstract_base;
GuType* elem_type;
};
#define GU_TYPE_INIT_GuBuf(KIND, BUF_T, ELEM_T) { \
.abstract_base = GU_TYPE_INIT_abstract(KIND, BUF_T, _), \
.elem_type = ELEM_T \
}
extern GU_DECLARE_TYPE(GuChars, GuSeq);
extern GU_DECLARE_TYPE(GuBytes, GuSeq);
#endif
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