48 lines
1.2 KiB
C
48 lines
1.2 KiB
C
#ifndef TREE_SITTER_TREE_CURSOR_H_
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#define TREE_SITTER_TREE_CURSOR_H_
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#include "./subtree.h"
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typedef struct {
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const Subtree *subtree;
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t_parse_length position;
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t_u32 child_index;
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t_u32 structural_child_index;
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t_u32 descendant_index;
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} TreeCursorEntry;
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typedef struct {
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const t_parse_tree *tree;
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Array(TreeCursorEntry) stack;
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t_symbol root_alias_symbol;
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} TreeCursor;
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typedef enum {
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TreeCursorStepNone,
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TreeCursorStepHidden,
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TreeCursorStepVisible,
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} TreeCursorStep;
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void ts_tree_cursor_init(TreeCursor *, t_parse_node);
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void ts_tree_cursor_current_status(
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const t_parse_tree_cursor *,
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t_field_id *,
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bool *,
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bool *,
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bool *,
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t_symbol *,
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unsigned *
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);
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TreeCursorStep ts_tree_cursor_goto_first_child_internal(t_parse_tree_cursor *);
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TreeCursorStep ts_tree_cursor_goto_next_sibling_internal(t_parse_tree_cursor *);
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static inline Subtree ts_tree_cursor_current_subtree(const t_parse_tree_cursor *_self) {
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const TreeCursor *self = (const TreeCursor *)_self;
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TreeCursorEntry *last_entry = array_back(&self->stack);
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return *last_entry->subtree;
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}
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t_parse_node ts_tree_cursor_parent_node(const t_parse_tree_cursor *);
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#endif // TREE_SITTER_TREE_CURSOR_H_
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