Current Dev State

static/js/ketcher2/node_modules/babel-plugin-transform-es2015-for-of/lib/index.js

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+"use strict";
+
+exports.__esModule = true;
+
+exports.default = function (_ref) {
+  var messages = _ref.messages,
+      template = _ref.template,
+      t = _ref.types;
+
+  var buildForOfArray = template("\n    for (var KEY = 0; KEY < ARR.length; KEY++) BODY;\n  ");
+
+  var buildForOfLoose = template("\n    for (var LOOP_OBJECT = OBJECT,\n             IS_ARRAY = Array.isArray(LOOP_OBJECT),\n             INDEX = 0,\n             LOOP_OBJECT = IS_ARRAY ? LOOP_OBJECT : LOOP_OBJECT[Symbol.iterator]();;) {\n      var ID;\n      if (IS_ARRAY) {\n        if (INDEX >= LOOP_OBJECT.length) break;\n        ID = LOOP_OBJECT[INDEX++];\n      } else {\n        INDEX = LOOP_OBJECT.next();\n        if (INDEX.done) break;\n        ID = INDEX.value;\n      }\n    }\n  ");
+
+  var buildForOf = template("\n    var ITERATOR_COMPLETION = true;\n    var ITERATOR_HAD_ERROR_KEY = false;\n    var ITERATOR_ERROR_KEY = undefined;\n    try {\n      for (var ITERATOR_KEY = OBJECT[Symbol.iterator](), STEP_KEY; !(ITERATOR_COMPLETION = (STEP_KEY = ITERATOR_KEY.next()).done); ITERATOR_COMPLETION = true) {\n      }\n    } catch (err) {\n      ITERATOR_HAD_ERROR_KEY = true;\n      ITERATOR_ERROR_KEY = err;\n    } finally {\n      try {\n        if (!ITERATOR_COMPLETION && ITERATOR_KEY.return) {\n          ITERATOR_KEY.return();\n        }\n      } finally {\n        if (ITERATOR_HAD_ERROR_KEY) {\n          throw ITERATOR_ERROR_KEY;\n        }\n      }\n    }\n  ");
+
+
+  function _ForOfStatementArray(path) {
+    var node = path.node,
+        scope = path.scope;
+
+    var nodes = [];
+    var right = node.right;
+
+    if (!t.isIdentifier(right) || !scope.hasBinding(right.name)) {
+      var uid = scope.generateUidIdentifier("arr");
+      nodes.push(t.variableDeclaration("var", [t.variableDeclarator(uid, right)]));
+      right = uid;
+    }
+
+    var iterationKey = scope.generateUidIdentifier("i");
+
+    var loop = buildForOfArray({
+      BODY: node.body,
+      KEY: iterationKey,
+      ARR: right
+    });
+
+    t.inherits(loop, node);
+    t.ensureBlock(loop);
+
+    var iterationValue = t.memberExpression(right, iterationKey, true);
+
+    var left = node.left;
+    if (t.isVariableDeclaration(left)) {
+      left.declarations[0].init = iterationValue;
+      loop.body.body.unshift(left);
+    } else {
+      loop.body.body.unshift(t.expressionStatement(t.assignmentExpression("=", left, iterationValue)));
+    }
+
+    if (path.parentPath.isLabeledStatement()) {
+      loop = t.labeledStatement(path.parentPath.node.label, loop);
+    }
+
+    nodes.push(loop);
+
+    return nodes;
+  }
+
+  return {
+    visitor: {
+      ForOfStatement: function ForOfStatement(path, state) {
+        if (path.get("right").isArrayExpression()) {
+          if (path.parentPath.isLabeledStatement()) {
+            return path.parentPath.replaceWithMultiple(_ForOfStatementArray(path));
+          } else {
+            return path.replaceWithMultiple(_ForOfStatementArray(path));
+          }
+        }
+
+        var callback = spec;
+        if (state.opts.loose) callback = loose;
+
+        var node = path.node;
+
+        var build = callback(path, state);
+        var declar = build.declar;
+        var loop = build.loop;
+        var block = loop.body;
+
+        path.ensureBlock();
+
+        if (declar) {
+          block.body.push(declar);
+        }
+
+        block.body = block.body.concat(node.body.body);
+
+        t.inherits(loop, node);
+        t.inherits(loop.body, node.body);
+
+        if (build.replaceParent) {
+          path.parentPath.replaceWithMultiple(build.node);
+          path.remove();
+        } else {
+          path.replaceWithMultiple(build.node);
+        }
+      }
+    }
+  };
+
+  function loose(path, file) {
+    var node = path.node,
+        scope = path.scope,
+        parent = path.parent;
+    var left = node.left;
+
+    var declar = void 0,
+        id = void 0;
+
+    if (t.isIdentifier(left) || t.isPattern(left) || t.isMemberExpression(left)) {
+      id = left;
+    } else if (t.isVariableDeclaration(left)) {
+      id = scope.generateUidIdentifier("ref");
+      declar = t.variableDeclaration(left.kind, [t.variableDeclarator(left.declarations[0].id, id)]);
+    } else {
+      throw file.buildCodeFrameError(left, messages.get("unknownForHead", left.type));
+    }
+
+    var iteratorKey = scope.generateUidIdentifier("iterator");
+    var isArrayKey = scope.generateUidIdentifier("isArray");
+
+    var loop = buildForOfLoose({
+      LOOP_OBJECT: iteratorKey,
+      IS_ARRAY: isArrayKey,
+      OBJECT: node.right,
+      INDEX: scope.generateUidIdentifier("i"),
+      ID: id
+    });
+
+    if (!declar) {
+      loop.body.body.shift();
+    }
+
+    var isLabeledParent = t.isLabeledStatement(parent);
+    var labeled = void 0;
+
+    if (isLabeledParent) {
+      labeled = t.labeledStatement(parent.label, loop);
+    }
+
+    return {
+      replaceParent: isLabeledParent,
+      declar: declar,
+      node: labeled || loop,
+      loop: loop
+    };
+  }
+
+  function spec(path, file) {
+    var node = path.node,
+        scope = path.scope,
+        parent = path.parent;
+
+    var left = node.left;
+    var declar = void 0;
+
+    var stepKey = scope.generateUidIdentifier("step");
+    var stepValue = t.memberExpression(stepKey, t.identifier("value"));
+
+    if (t.isIdentifier(left) || t.isPattern(left) || t.isMemberExpression(left)) {
+      declar = t.expressionStatement(t.assignmentExpression("=", left, stepValue));
+    } else if (t.isVariableDeclaration(left)) {
+      declar = t.variableDeclaration(left.kind, [t.variableDeclarator(left.declarations[0].id, stepValue)]);
+    } else {
+      throw file.buildCodeFrameError(left, messages.get("unknownForHead", left.type));
+    }
+
+    var iteratorKey = scope.generateUidIdentifier("iterator");
+
+    var template = buildForOf({
+      ITERATOR_HAD_ERROR_KEY: scope.generateUidIdentifier("didIteratorError"),
+      ITERATOR_COMPLETION: scope.generateUidIdentifier("iteratorNormalCompletion"),
+      ITERATOR_ERROR_KEY: scope.generateUidIdentifier("iteratorError"),
+      ITERATOR_KEY: iteratorKey,
+      STEP_KEY: stepKey,
+      OBJECT: node.right,
+      BODY: null
+    });
+
+    var isLabeledParent = t.isLabeledStatement(parent);
+
+    var tryBody = template[3].block.body;
+    var loop = tryBody[0];
+
+    if (isLabeledParent) {
+      tryBody[0] = t.labeledStatement(parent.label, loop);
+    }
+
+    return {
+      replaceParent: isLabeledParent,
+      declar: declar,
+      loop: loop,
+      node: template
+    };
+  }
+};
+
+module.exports = exports["default"];