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[api] introduced linked list macros with z-check z-set upgrade

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Allen Webster
2021-06-12 12:02:44 -07:00
parent 0832e601b7
commit aba3c9a164
3 changed files with 67 additions and 45 deletions
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source/md.h
+47 -1
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@@ -228,6 +228,7 @@ typedef int64_t MD_b64;
typedef float MD_f32;
typedef double MD_f64;
//~ Basic UTF-8 string types.
typedef struct MD_String8 MD_String8;
@@ -575,6 +576,49 @@ struct MD_FileIter
#define MD_StaticAssert(c,label) MD_u8 MD_static_assert_##label[(c)?(1):(-1)]
#define MD_ArrayCount(a) (sizeof(a) / sizeof((a)[0]))
//~ Linked List Macros.
// terminator modes
#define MD_CheckNull(p) ((p)==0)
#define MD_SetNull(p) ((p)=0)
#define MD_CheckNil(p) (MD_NodeIsNil(p))
#define MD_SetNil(p) ((p)=MD_NilNode())
// implementations
#define MD_QueuePush_NZ(f,l,n,next,zchk,zset) (zchk(f)?\
(f)=(l)=(n):\
((l)->next=(n),(l)=(n),zset((n)->next)))
#define MD_QueuePop_NZ(f,l,next,zset) ((f)==(l)?\
(zset(f),zset(l)):\
(f)=(f)->next)
#define MD_StackPush_N(f,n,next) ((n)->next=(f),(f)=(n))
#define MD_StackPop_NZ(f,next,zchk) (zchk(f)?0:(f)=(f)->next)
#define MD_DblPushBack_NPZ(f,l,n,next,prev,zchk,zset) \
(zchk(f)?\
((f)=(l)=(n),zset((n)->next),zset((n)->prev)):\
((n)->prev=(l),(l)->next=(n),(l)=(n),zset((n)->next)))
#define MD_DblRemove_NPZ(f,l,n,next,prev,zset) (((f)==(n)?\
((f)=(f)->next,zset((f)->prev)):\
(l)==(n)?\
((l)=(l)->prev,zset((l)->next)):\
((n)->next->prev=(n)->prev,\
(n)->prev->next=(n)->next)))
// compositions
#define MD_QueuePush(f,l,n) MD_QueuePush_NZ(f,l,n,next,MD_CheckNull,MD_SetNull)
#define MD_QueuePop(f,l) MD_QueuePop_NZ(f,l,next,MD_SetNull)
#define MD_StackPush(f,n) MD_StackPush_N(f,n,next)
#define MD_StackPop(f) MD_StackPop_NZ(f,next,MD_CheckNull)
#define MD_DblPushBack(f,l,n) MD_DblPushBack_NPZ(f,l,n,next,prev,MD_CheckNull,MD_SetNull)
#define MD_DblPushFront(f,l,n) MD_DblPushBack_NPZ(l,f,n,prev,next,MD_CheckNull,MD_SetNull)
#define MD_DblRemove(f,l,n) MD_DblRemove_NPZ(f,l,n,next,prev,MD_SetNull)
#define MD_NodeDblPushBack(f,l,n) MD_DblPushBack_NPZ(f,l,n,next,prev,MD_CheckNil,MD_SetNil)
#define MD_NodeDblPushFront(f,l,n) MD_DblPushBack_NPZ(l,f,n,prev,next,MD_CheckNil,MD_SetNil)
#define MD_NodeDblRemove(f,l,n) MD_DblRemove_NPZ(f,l,n,next,prev,MD_SetNil)
//~ Memory Operations
MD_FUNCTION void MD_MemoryZero(void *memory, MD_u64 size);
MD_FUNCTION void MD_MemoryCopy(void *dst, void *src, MD_u64 size);
@@ -702,11 +746,13 @@ MD_FUNCTION MD_Node *MD_NilNode(void);
MD_FUNCTION MD_Node *MD_MakeNode(MD_NodeKind kind, MD_String8 string,
MD_String8 whole_string, MD_String8 filename,
MD_u8 *file_contents, MD_u8 *at);
MD_FUNCTION void MD_PushSibling(MD_Node **first, MD_Node **last, MD_Node *new_sibling);
MD_FUNCTION void MD_PushChild(MD_Node *parent, MD_Node *new_child);
MD_FUNCTION void MD_PushTag(MD_Node *node, MD_Node *tag);
MD_FUNCTION MD_Node *MD_PushReference(MD_Node *list, MD_Node *target);
// TODO(allen): eliminate
MD_FUNCTION void MD_PushSibling(MD_Node **first, MD_Node **last, MD_Node *new_sibling);
//~ Introspection Helpers
MD_FUNCTION MD_Node * MD_NodeFromString(MD_Node *first, MD_Node *last, MD_String8 string);
MD_FUNCTION MD_Node * MD_NodeFromIndex(MD_Node *first, MD_Node *last, int n);