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Diffstat (limited to 'src/nvim/eval_defs.h')
| -rw-r--r-- | src/nvim/eval_defs.h | 116 |
1 files changed, 116 insertions, 0 deletions
diff --git a/src/nvim/eval_defs.h b/src/nvim/eval_defs.h new file mode 100644 index 0000000000..aa086c3278 --- /dev/null +++ b/src/nvim/eval_defs.h @@ -0,0 +1,116 @@ +#ifndef NEOVIM_EVAL_DEFS_H +#define NEOVIM_EVAL_DEFS_H + +#include "hashtab.h" + +typedef int varnumber_T; +typedef double float_T; + +typedef struct listvar_S list_T; +typedef struct dictvar_S dict_T; + +/* + * Structure to hold an internal variable without a name. + */ +typedef struct { + char v_type; /* see below: VAR_NUMBER, VAR_STRING, etc. */ + char v_lock; /* see below: VAR_LOCKED, VAR_FIXED */ + union { + varnumber_T v_number; /* number value */ + float_T v_float; /* floating number value */ + char_u *v_string; /* string value (can be NULL!) */ + list_T *v_list; /* list value (can be NULL!) */ + dict_T *v_dict; /* dict value (can be NULL!) */ + } vval; +} typval_T; + +/* Values for "v_type". */ +#define VAR_UNKNOWN 0 +#define VAR_NUMBER 1 /* "v_number" is used */ +#define VAR_STRING 2 /* "v_string" is used */ +#define VAR_FUNC 3 /* "v_string" is function name */ +#define VAR_LIST 4 /* "v_list" is used */ +#define VAR_DICT 5 /* "v_dict" is used */ +#define VAR_FLOAT 6 /* "v_float" is used */ + +/* Values for "dv_scope". */ +#define VAR_SCOPE 1 /* a:, v:, s:, etc. scope dictionaries */ +#define VAR_DEF_SCOPE 2 /* l:, g: scope dictionaries: here funcrefs are not + allowed to mask existing functions */ + +/* Values for "v_lock". */ +#define VAR_LOCKED 1 /* locked with lock(), can use unlock() */ +#define VAR_FIXED 2 /* locked forever */ + +/* + * Structure to hold an item of a list: an internal variable without a name. + */ +typedef struct listitem_S listitem_T; + +struct listitem_S { + listitem_T *li_next; /* next item in list */ + listitem_T *li_prev; /* previous item in list */ + typval_T li_tv; /* type and value of the variable */ +}; + +/* + * Struct used by those that are using an item in a list. + */ +typedef struct listwatch_S listwatch_T; + +struct listwatch_S { + listitem_T *lw_item; /* item being watched */ + listwatch_T *lw_next; /* next watcher */ +}; + +/* + * Structure to hold info about a list. + */ +struct listvar_S { + listitem_T *lv_first; /* first item, NULL if none */ + listitem_T *lv_last; /* last item, NULL if none */ + int lv_refcount; /* reference count */ + int lv_len; /* number of items */ + listwatch_T *lv_watch; /* first watcher, NULL if none */ + int lv_idx; /* cached index of an item */ + listitem_T *lv_idx_item; /* when not NULL item at index "lv_idx" */ + int lv_copyID; /* ID used by deepcopy() */ + list_T *lv_copylist; /* copied list used by deepcopy() */ + char lv_lock; /* zero, VAR_LOCKED, VAR_FIXED */ + list_T *lv_used_next; /* next list in used lists list */ + list_T *lv_used_prev; /* previous list in used lists list */ +}; + +/* + * Structure to hold an item of a Dictionary. + * Also used for a variable. + * The key is copied into "di_key" to avoid an extra alloc/free for it. + */ +struct dictitem_S { + typval_T di_tv; /* type and value of the variable */ + char_u di_flags; /* flags (only used for variable) */ + char_u di_key[1]; /* key (actually longer!) */ +}; + +typedef struct dictitem_S dictitem_T; + +#define DI_FLAGS_RO 1 /* "di_flags" value: read-only variable */ +#define DI_FLAGS_RO_SBX 2 /* "di_flags" value: read-only in the sandbox */ +#define DI_FLAGS_FIX 4 /* "di_flags" value: fixed variable, not allocated */ +#define DI_FLAGS_LOCK 8 /* "di_flags" value: locked variable */ + +/* + * Structure to hold info about a Dictionary. + */ +struct dictvar_S { + char dv_lock; /* zero, VAR_LOCKED, VAR_FIXED */ + char dv_scope; /* zero, VAR_SCOPE, VAR_DEF_SCOPE */ + int dv_refcount; /* reference count */ + int dv_copyID; /* ID used by deepcopy() */ + hashtab_T dv_hashtab; /* hashtab that refers to the items */ + dict_T *dv_copydict; /* copied dict used by deepcopy() */ + dict_T *dv_used_next; /* next dict in used dicts list */ + dict_T *dv_used_prev; /* previous dict in used dicts list */ +}; + +#endif // NEOVIM_EVAL_DEFS_H |