traxys/tree-sitter
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Store edits in trees, not by splitting stack

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This allows for multiple edits per parse, though it is not exposed through
the API yet
This commit is contained in:
Max Brunsfeld 2015-09-13 19:47:45 -07:00
parent 0467d190fe
commit b3d883e128
11 changed files with 169 additions and 333 deletions
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45
src/runtime/tree.h
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@ -34,10 +34,16 @@ struct TSTree {
unsigned short int ref_count;
};
typedef struct {
TSTree *tree;
TSLength offset;
} TSTreeChild;
TSTree *ts_tree_make_leaf(TSSymbol, TSLength, TSLength, TSNodeType);
TSTree *ts_tree_make_node(TSSymbol, size_t, TSTree **, TSNodeType);
TSTree *ts_tree_make_error(TSLength size, TSLength padding, char lookahead_char);
void ts_tree_retain(TSTree *tree);
void ts_tree_release(TSTree *tree);
bool ts_tree_eq(const TSTree *tree1, const TSTree *tree2);
char *ts_tree_string(const TSTree *tree, const char **names);
TSLength ts_tree_total_size(const TSTree *tree);
void ts_tree_prepend_children(TSTree *, size_t, TSTree **);
void ts_tree_edit(TSTree *, TSInputEdit);
static inline bool ts_tree_is_extra(const TSTree *tree) {
return tree->options.extra;
@ -59,28 +65,29 @@ static inline void ts_tree_set_fragile_right(TSTree *tree) {
tree->options.fragile_right = true;
}
static inline bool ts_tree_is_fragile_left(TSTree *tree) {
static inline bool ts_tree_is_fragile_left(const TSTree *tree) {
return tree->options.fragile_left;
}
static inline bool ts_tree_is_fragile_right(TSTree *tree) {
static inline bool ts_tree_is_fragile_right(const TSTree *tree) {
return tree->options.fragile_right;
}
TSTree *ts_tree_make_leaf(TSSymbol, TSLength, TSLength, TSNodeType);
TSTree *ts_tree_make_node(TSSymbol, size_t, TSTree **, TSNodeType);
TSTree *ts_tree_make_error(TSLength size, TSLength padding, char lookahead_char);
void ts_tree_retain(TSTree *tree);
void ts_tree_release(TSTree *tree);
bool ts_tree_eq(const TSTree *tree1, const TSTree *tree2);
char *ts_tree_string(const TSTree *tree, const char **names);
char *ts_tree_error_string(const TSTree *tree, const char **names);
TSLength ts_tree_total_size(const TSTree *tree);
void ts_tree_prepend_children(TSTree *, size_t, TSTree **);
void ts_tree_edit(TSTree *, TSInputEdit);
static inline bool ts_tree_is_terminal(const TSTree *tree) {
return tree->child_count == 0;
}
static inline bool ts_tree_is_empty(TSTree *tree) {
return ts_tree_total_size(tree).bytes == 0;
static inline bool ts_tree_has_changes(const TSTree *tree) {
return tree->options.has_changes;
}
static inline bool ts_tree_is_empty(const TSTree *tree) {
return ts_tree_total_size(tree).chars == 0;
}
static inline bool ts_tree_is_fragile(const TSTree *tree) {
return ts_tree_is_empty(tree) || tree->options.fragile_left ||
tree->options.fragile_right;
}
#ifdef __cplusplus