tree-sitter/test/helpers/point_helpers.cc

82 lines
2.2 KiB
C++

#include "./point_helpers.h"
#include <string>
#include <ostream>
#include <cassert>
#include "runtime/length.h"
#include "tree_sitter/runtime.h"
using namespace std;
bool operator==(const TSPoint &left, const TSPoint &right) {
return left.row == right.row && left.column == right.column;
}
bool operator==(const TSRange &left, const TSRange &right) {
return (
left.start_byte == right.start_byte &&
left.end_byte == right.end_byte &&
left.start_point == right.start_point &&
left.end_point == right.end_point
);
}
bool operator==(const Length &left, const Length &right) {
return left.bytes == right.bytes && left.extent == right.extent;
}
bool operator<(const TSPoint &left, const TSPoint &right) {
if (left.row < right.row) return true;
if (left.row > right.row) return false;
return left.column < right.column;
}
bool operator>(const TSPoint &left, const TSPoint &right) {
return right < left;
}
Length operator*(const Length &length, uint32_t factor) {
return {length.bytes * factor, {0, length.extent.column * factor}};
}
Length operator+(const Length &left, const Length &right) {
return length_add(left, right);
}
std::ostream &operator<<(std::ostream &stream, const TSPoint &point) {
return stream << "{" << point.row << ", " << point.column << "}";
}
std::ostream &operator<<(std::ostream &stream, const TSRange &range) {
return stream << "{" << range.start_point << ", " << range.end_point << "}";
}
ostream &operator<<(ostream &stream, const Length &length) {
return stream << "{bytes:" << length.bytes << ", extent:" << length.extent << "}";
}
TSPoint extent_for_string(const string &text, size_t end_index) {
if (end_index > text.size()) end_index = text.size();
TSPoint result = {0, 0};
for (size_t i = 0; i < end_index; i++) {
if (text[i] == '\n') {
result.row++;
result.column = 0;
} else {
result.column++;
}
}
return result;
}
TSRange range_for_substring(const string &text, const string &substring) {
size_t start = text.find(substring);
assert(start != string::npos);
size_t end = start + substring.size();
return TSRange {
extent_for_string(text, start),
extent_for_string(text, end),
static_cast<uint32_t>(start),
static_cast<uint32_t>(end),
};
};