bendns' repos / helix
Unnamed repository; edit this file 'description' to name the repository.
Diffstat (limited to 'vendor/tree-sitter/src/length.h')
-rw-r--r--vendor/tree-sitter/src/length.h52
1 files changed, 52 insertions, 0 deletions
diff --git a/vendor/tree-sitter/src/length.h b/vendor/tree-sitter/src/length.h
new file mode 100644
index 00000000..42d61ef3
--- /dev/null
+++ b/vendor/tree-sitter/src/length.h
@@ -0,0 +1,52 @@
+#ifndef TREE_SITTER_LENGTH_H_
+#define TREE_SITTER_LENGTH_H_
+
+#include <stdlib.h>
+#include <stdbool.h>
+#include "./point.h"
+#include "tree_sitter/api.h"
+
+typedef struct {
+ uint32_t bytes;
+ TSPoint extent;
+} Length;
+
+static const Length LENGTH_UNDEFINED = {0, {0, 1}};
+static const Length LENGTH_MAX = {UINT32_MAX, {UINT32_MAX, UINT32_MAX}};
+
+static inline bool length_is_undefined(Length length) {
+ return length.bytes == 0 && length.extent.column != 0;
+}
+
+static inline Length length_min(Length len1, Length len2) {
+ return (len1.bytes < len2.bytes) ? len1 : len2;
+}
+
+static inline Length length_add(Length len1, Length len2) {
+ Length result;
+ result.bytes = len1.bytes + len2.bytes;
+ result.extent = point_add(len1.extent, len2.extent);
+ return result;
+}
+
+static inline Length length_sub(Length len1, Length len2) {
+ Length result;
+ result.bytes = len1.bytes - len2.bytes;
+ result.extent = point_sub(len1.extent, len2.extent);
+ return result;
+}
+
+static inline Length length_zero(void) {
+ Length result = {0, {0, 0}};
+ return result;
+}
+
+static inline Length length_saturating_sub(Length len1, Length len2) {
+ if (len1.bytes > len2.bytes) {
+ return length_sub(len1, len2);
+ } else {
+ return length_zero();
+ }
+}
+
+#endif