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node_modules/graphql/language/printLocation.js

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+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.printLocation = printLocation;
+exports.printSourceLocation = printSourceLocation;
+
+var _location = require("../language/location");
+
+/**
+ * Render a helpful description of the location in the GraphQL Source document.
+ */
+function printLocation(location) {
+  return printSourceLocation(location.source, (0, _location.getLocation)(location.source, location.start));
+}
+/**
+ * Render a helpful description of the location in the GraphQL Source document.
+ */
+
+
+function printSourceLocation(source, sourceLocation) {
+  var firstLineColumnOffset = source.locationOffset.column - 1;
+  var body = whitespace(firstLineColumnOffset) + source.body;
+  var lineIndex = sourceLocation.line - 1;
+  var lineOffset = source.locationOffset.line - 1;
+  var lineNum = sourceLocation.line + lineOffset;
+  var columnOffset = sourceLocation.line === 1 ? firstLineColumnOffset : 0;
+  var columnNum = sourceLocation.column + columnOffset;
+  var locationStr = "".concat(source.name, ":").concat(lineNum, ":").concat(columnNum, "\n");
+  var lines = body.split(/\r\n|[\n\r]/g);
+  var locationLine = lines[lineIndex]; // Special case for minified documents
+
+  if (locationLine.length > 120) {
+    var sublineIndex = Math.floor(columnNum / 80);
+    var sublineColumnNum = columnNum % 80;
+    var sublines = [];
+
+    for (var i = 0; i < locationLine.length; i += 80) {
+      sublines.push(locationLine.slice(i, i + 80));
+    }
+
+    return locationStr + printPrefixedLines([["".concat(lineNum), sublines[0]]].concat(sublines.slice(1, sublineIndex + 1).map(function (subline) {
+      return ['', subline];
+    }), [[' ', whitespace(sublineColumnNum - 1) + '^'], ['', sublines[sublineIndex + 1]]]));
+  }
+
+  return locationStr + printPrefixedLines([// Lines specified like this: ["prefix", "string"],
+  ["".concat(lineNum - 1), lines[lineIndex - 1]], ["".concat(lineNum), locationLine], ['', whitespace(columnNum - 1) + '^'], ["".concat(lineNum + 1), lines[lineIndex + 1]]]);
+}
+
+function printPrefixedLines(lines) {
+  var existingLines = lines.filter(function (_ref) {
+    var _ = _ref[0],
+        line = _ref[1];
+    return line !== undefined;
+  });
+  var padLen = Math.max.apply(Math, existingLines.map(function (_ref2) {
+    var prefix = _ref2[0];
+    return prefix.length;
+  }));
+  return existingLines.map(function (_ref3) {
+    var prefix = _ref3[0],
+        line = _ref3[1];
+    return lpad(padLen, prefix) + (line ? ' | ' + line : ' |');
+  }).join('\n');
+}
+
+function whitespace(len) {
+  return Array(len + 1).join(' ');
+}
+
+function lpad(len, str) {
+  return whitespace(len - str.length) + str;
+}