初始化

uni_modules/UniDevTools/node_modules/v8-to-istanbul/lib/range.js

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+/**
+ * ...something resembling a binary search, to find the lowest line within the range.
+ * And then you could break as soon as the line is longer than the range...
+ */
+module.exports.sliceRange = (lines, startCol, endCol, inclusive = false) => {
+  let start = 0
+  let end = lines.length - 1
+
+  /**
+   * I consider this a temporary solution until I find an alternaive way to fix the "off by one issue"
+   */
+  const extStartCol = inclusive ? startCol - 1 : startCol
+
+  while (start < end) {
+    const mid = (start + end) >> 1
+    if (lines[mid].startCol <= startCol && lines[mid].endCol > extStartCol) {
+      start = mid
+      end = start
+    } else if (lines[mid].startCol > startCol) {
+      end = mid - 1
+    } else {
+      start = mid + 1
+    }
+  }
+  if (start === end) {
+    while (end < lines.length && extStartCol < lines[end].endCol && endCol >= lines[end].startCol) {
+      ++end
+    }
+    return lines.slice(start, end)
+  } else {
+    return []
+  }
+}