update

node_modules/nunjucks/src/jinja-compat.js

@@ -0,0 +1,358 @@
+"use strict";
+
+function installCompat() {
+  'use strict';
+  /* eslint-disable camelcase */
+  // This must be called like `nunjucks.installCompat` so that `this`
+  // references the nunjucks instance
+
+  var runtime = this.runtime;
+  var lib = this.lib; // Handle slim case where these 'modules' are excluded from the built source
+
+  var Compiler = this.compiler.Compiler;
+  var Parser = this.parser.Parser;
+  var nodes = this.nodes;
+  var lexer = this.lexer;
+  var orig_contextOrFrameLookup = runtime.contextOrFrameLookup;
+  var orig_memberLookup = runtime.memberLookup;
+  var orig_Compiler_assertType;
+  var orig_Parser_parseAggregate;
+
+  if (Compiler) {
+    orig_Compiler_assertType = Compiler.prototype.assertType;
+  }
+
+  if (Parser) {
+    orig_Parser_parseAggregate = Parser.prototype.parseAggregate;
+  }
+
+  function uninstall() {
+    runtime.contextOrFrameLookup = orig_contextOrFrameLookup;
+    runtime.memberLookup = orig_memberLookup;
+
+    if (Compiler) {
+      Compiler.prototype.assertType = orig_Compiler_assertType;
+    }
+
+    if (Parser) {
+      Parser.prototype.parseAggregate = orig_Parser_parseAggregate;
+    }
+  }
+
+  runtime.contextOrFrameLookup = function contextOrFrameLookup(context, frame, key) {
+    var val = orig_contextOrFrameLookup.apply(this, arguments);
+
+    if (val !== undefined) {
+      return val;
+    }
+
+    switch (key) {
+      case 'True':
+        return true;
+
+      case 'False':
+        return false;
+
+      case 'None':
+        return null;
+
+      default:
+        return undefined;
+    }
+  };
+
+  function getTokensState(tokens) {
+    return {
+      index: tokens.index,
+      lineno: tokens.lineno,
+      colno: tokens.colno
+    };
+  }
+
+  if (process.env.BUILD_TYPE !== 'SLIM' && nodes && Compiler && Parser) {
+    // i.e., not slim mode
+    var Slice = nodes.Node.extend('Slice', {
+      fields: ['start', 'stop', 'step'],
+      init: function init(lineno, colno, start, stop, step) {
+        start = start || new nodes.Literal(lineno, colno, null);
+        stop = stop || new nodes.Literal(lineno, colno, null);
+        step = step || new nodes.Literal(lineno, colno, 1);
+        this.parent(lineno, colno, start, stop, step);
+      }
+    });
+
+    Compiler.prototype.assertType = function assertType(node) {
+      if (node instanceof Slice) {
+        return;
+      }
+
+      orig_Compiler_assertType.apply(this, arguments);
+    };
+
+    Compiler.prototype.compileSlice = function compileSlice(node, frame) {
+      this._emit('(');
+
+      this._compileExpression(node.start, frame);
+
+      this._emit('),(');
+
+      this._compileExpression(node.stop, frame);
+
+      this._emit('),(');
+
+      this._compileExpression(node.step, frame);
+
+      this._emit(')');
+    };
+
+    Parser.prototype.parseAggregate = function parseAggregate() {
+      var _this = this;
+
+      var origState = getTokensState(this.tokens); // Set back one accounting for opening bracket/parens
+
+      origState.colno--;
+      origState.index--;
+
+      try {
+        return orig_Parser_parseAggregate.apply(this);
+      } catch (e) {
+        var errState = getTokensState(this.tokens);
+
+        var rethrow = function rethrow() {
+          lib._assign(_this.tokens, errState);
+
+          return e;
+        }; // Reset to state before original parseAggregate called
+
+
+        lib._assign(this.tokens, origState);
+
+        this.peeked = false;
+        var tok = this.peekToken();
+
+        if (tok.type !== lexer.TOKEN_LEFT_BRACKET) {
+          throw rethrow();
+        } else {
+          this.nextToken();
+        }
+
+        var node = new Slice(tok.lineno, tok.colno); // If we don't encounter a colon while parsing, this is not a slice,
+        // so re-raise the original exception.
+
+        var isSlice = false;
+
+        for (var i = 0; i <= node.fields.length; i++) {
+          if (this.skip(lexer.TOKEN_RIGHT_BRACKET)) {
+            break;
+          }
+
+          if (i === node.fields.length) {
+            if (isSlice) {
+              this.fail('parseSlice: too many slice components', tok.lineno, tok.colno);
+            } else {
+              break;
+            }
+          }
+
+          if (this.skip(lexer.TOKEN_COLON)) {
+            isSlice = true;
+          } else {
+            var field = node.fields[i];
+            node[field] = this.parseExpression();
+            isSlice = this.skip(lexer.TOKEN_COLON) || isSlice;
+          }
+        }
+
+        if (!isSlice) {
+          throw rethrow();
+        }
+
+        return new nodes.Array(tok.lineno, tok.colno, [node]);
+      }
+    };
+  }
+
+  function sliceLookup(obj, start, stop, step) {
+    obj = obj || [];
+
+    if (start === null) {
+      start = step < 0 ? obj.length - 1 : 0;
+    }
+
+    if (stop === null) {
+      stop = step < 0 ? -1 : obj.length;
+    } else if (stop < 0) {
+      stop += obj.length;
+    }
+
+    if (start < 0) {
+      start += obj.length;
+    }
+
+    var results = [];
+
+    for (var i = start;; i += step) {
+      if (i < 0 || i > obj.length) {
+        break;
+      }
+
+      if (step > 0 && i >= stop) {
+        break;
+      }
+
+      if (step < 0 && i <= stop) {
+        break;
+      }
+
+      results.push(runtime.memberLookup(obj, i));
+    }
+
+    return results;
+  }
+
+  function hasOwnProp(obj, key) {
+    return Object.prototype.hasOwnProperty.call(obj, key);
+  }
+
+  var ARRAY_MEMBERS = {
+    pop: function pop(index) {
+      if (index === undefined) {
+        return this.pop();
+      }
+
+      if (index >= this.length || index < 0) {
+        throw new Error('KeyError');
+      }
+
+      return this.splice(index, 1);
+    },
+    append: function append(element) {
+      return this.push(element);
+    },
+    remove: function remove(element) {
+      for (var i = 0; i < this.length; i++) {
+        if (this[i] === element) {
+          return this.splice(i, 1);
+        }
+      }
+
+      throw new Error('ValueError');
+    },
+    count: function count(element) {
+      var count = 0;
+
+      for (var i = 0; i < this.length; i++) {
+        if (this[i] === element) {
+          count++;
+        }
+      }
+
+      return count;
+    },
+    index: function index(element) {
+      var i;
+
+      if ((i = this.indexOf(element)) === -1) {
+        throw new Error('ValueError');
+      }
+
+      return i;
+    },
+    find: function find(element) {
+      return this.indexOf(element);
+    },
+    insert: function insert(index, elem) {
+      return this.splice(index, 0, elem);
+    }
+  };
+  var OBJECT_MEMBERS = {
+    items: function items() {
+      return lib._entries(this);
+    },
+    values: function values() {
+      return lib._values(this);
+    },
+    keys: function keys() {
+      return lib.keys(this);
+    },
+    get: function get(key, def) {
+      var output = this[key];
+
+      if (output === undefined) {
+        output = def;
+      }
+
+      return output;
+    },
+    has_key: function has_key(key) {
+      return hasOwnProp(this, key);
+    },
+    pop: function pop(key, def) {
+      var output = this[key];
+
+      if (output === undefined && def !== undefined) {
+        output = def;
+      } else if (output === undefined) {
+        throw new Error('KeyError');
+      } else {
+        delete this[key];
+      }
+
+      return output;
+    },
+    popitem: function popitem() {
+      var keys = lib.keys(this);
+
+      if (!keys.length) {
+        throw new Error('KeyError');
+      }
+
+      var k = keys[0];
+      var val = this[k];
+      delete this[k];
+      return [k, val];
+    },
+    setdefault: function setdefault(key, def) {
+      if (def === void 0) {
+        def = null;
+      }
+
+      if (!(key in this)) {
+        this[key] = def;
+      }
+
+      return this[key];
+    },
+    update: function update(kwargs) {
+      lib._assign(this, kwargs);
+
+      return null; // Always returns None
+    }
+  };
+  OBJECT_MEMBERS.iteritems = OBJECT_MEMBERS.items;
+  OBJECT_MEMBERS.itervalues = OBJECT_MEMBERS.values;
+  OBJECT_MEMBERS.iterkeys = OBJECT_MEMBERS.keys;
+
+  runtime.memberLookup = function memberLookup(obj, val, autoescape) {
+    if (arguments.length === 4) {
+      return sliceLookup.apply(this, arguments);
+    }
+
+    obj = obj || {}; // If the object is an object, return any of the methods that Python would
+    // otherwise provide.
+
+    if (lib.isArray(obj) && hasOwnProp(ARRAY_MEMBERS, val)) {
+      return ARRAY_MEMBERS[val].bind(obj);
+    }
+
+    if (lib.isObject(obj) && hasOwnProp(OBJECT_MEMBERS, val)) {
+      return OBJECT_MEMBERS[val].bind(obj);
+    }
+
+    return orig_memberLookup.apply(this, arguments);
+  };
+
+  return uninstall;
+}
+
+module.exports = installCompat;