64 lines
1.4 KiB
C
64 lines
1.4 KiB
C
#ifndef TREE_SITTER_LENGTH_H_
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#define TREE_SITTER_LENGTH_H_
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#include "parser/point.h"
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#include "parser/api.h"
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#include <stdbool.h>
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#include <stdlib.h>
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typedef struct s_parse_length
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{
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t_u32 bytes;
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t_point extent;
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} t_parse_length;
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static const t_parse_length LENGTH_UNDEFINED = {0, {0, 1}};
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static const t_parse_length LENGTH_MAX = {UINT32_MAX, {UINT32_MAX, UINT32_MAX}};
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static inline bool length_is_undefined(t_parse_length length)
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{
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return (length.bytes == 0 && length.extent.column != 0);
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}
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static inline t_parse_length length_min(t_parse_length len1,
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t_parse_length len2)
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{
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if (len1.bytes < len2.bytes)
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return (len1);
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else
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return (len2);
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}
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static inline t_parse_length length_add(t_parse_length len1,
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t_parse_length len2)
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{
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t_parse_length result;
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result.bytes = len1.bytes + len2.bytes;
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result.extent = point_add(len1.extent, len2.extent);
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return (result);
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}
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static inline t_parse_length length_sub(t_parse_length len1,
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t_parse_length len2)
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{
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t_parse_length result;
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result.bytes = len1.bytes - len2.bytes;
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result.extent = point_sub(len1.extent, len2.extent);
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return (result);
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}
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static inline t_parse_length length_zero(void)
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{
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return ((t_parse_length){0, {0, 0}});
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}
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static inline t_parse_length length_saturating_sub(t_parse_length len1,
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t_parse_length len2)
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{
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if (len1.bytes > len2.bytes)
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return (length_sub(len1, len2));
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else
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return (length_zero());
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}
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#endif
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