Current Dev State

static/js/ketcher2/node_modules/espree/lib/ast-node-types.js

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+/**
+ * @fileoverview The AST node types produced by the parser.
+ * @author Nicholas C. Zakas
+ */
+
+"use strict";
+
+//------------------------------------------------------------------------------
+// Requirements
+//------------------------------------------------------------------------------
+
+// None!
+
+//------------------------------------------------------------------------------
+// Public
+//------------------------------------------------------------------------------
+
+module.exports = {
+    AssignmentExpression: "AssignmentExpression",
+    AssignmentPattern: "AssignmentPattern",
+    ArrayExpression: "ArrayExpression",
+    ArrayPattern: "ArrayPattern",
+    ArrowFunctionExpression: "ArrowFunctionExpression",
+    AwaitExpression: "AwaitExpression",
+    BlockStatement: "BlockStatement",
+    BinaryExpression: "BinaryExpression",
+    BreakStatement: "BreakStatement",
+    CallExpression: "CallExpression",
+    CatchClause: "CatchClause",
+    ClassBody: "ClassBody",
+    ClassDeclaration: "ClassDeclaration",
+    ClassExpression: "ClassExpression",
+    ConditionalExpression: "ConditionalExpression",
+    ContinueStatement: "ContinueStatement",
+    DoWhileStatement: "DoWhileStatement",
+    DebuggerStatement: "DebuggerStatement",
+    EmptyStatement: "EmptyStatement",
+    ExperimentalRestProperty: "ExperimentalRestProperty",
+    ExperimentalSpreadProperty: "ExperimentalSpreadProperty",
+    ExpressionStatement: "ExpressionStatement",
+    ForStatement: "ForStatement",
+    ForInStatement: "ForInStatement",
+    ForOfStatement: "ForOfStatement",
+    FunctionDeclaration: "FunctionDeclaration",
+    FunctionExpression: "FunctionExpression",
+    Identifier: "Identifier",
+    IfStatement: "IfStatement",
+    Literal: "Literal",
+    LabeledStatement: "LabeledStatement",
+    LogicalExpression: "LogicalExpression",
+    MemberExpression: "MemberExpression",
+    MetaProperty: "MetaProperty",
+    MethodDefinition: "MethodDefinition",
+    NewExpression: "NewExpression",
+    ObjectExpression: "ObjectExpression",
+    ObjectPattern: "ObjectPattern",
+    Program: "Program",
+    Property: "Property",
+    RestElement: "RestElement",
+    ReturnStatement: "ReturnStatement",
+    SequenceExpression: "SequenceExpression",
+    SpreadElement: "SpreadElement",
+    Super: "Super",
+    SwitchCase: "SwitchCase",
+    SwitchStatement: "SwitchStatement",
+    TaggedTemplateExpression: "TaggedTemplateExpression",
+    TemplateElement: "TemplateElement",
+    TemplateLiteral: "TemplateLiteral",
+    ThisExpression: "ThisExpression",
+    ThrowStatement: "ThrowStatement",
+    TryStatement: "TryStatement",
+    UnaryExpression: "UnaryExpression",
+    UpdateExpression: "UpdateExpression",
+    VariableDeclaration: "VariableDeclaration",
+    VariableDeclarator: "VariableDeclarator",
+    WhileStatement: "WhileStatement",
+    WithStatement: "WithStatement",
+    YieldExpression: "YieldExpression",
+    JSXIdentifier: "JSXIdentifier",
+    JSXNamespacedName: "JSXNamespacedName",
+    JSXMemberExpression: "JSXMemberExpression",
+    JSXEmptyExpression: "JSXEmptyExpression",
+    JSXExpressionContainer: "JSXExpressionContainer",
+    JSXElement: "JSXElement",
+    JSXClosingElement: "JSXClosingElement",
+    JSXOpeningElement: "JSXOpeningElement",
+    JSXAttribute: "JSXAttribute",
+    JSXSpreadAttribute: "JSXSpreadAttribute",
+    JSXText: "JSXText",
+    ExportDefaultDeclaration: "ExportDefaultDeclaration",
+    ExportNamedDeclaration: "ExportNamedDeclaration",
+    ExportAllDeclaration: "ExportAllDeclaration",
+    ExportSpecifier: "ExportSpecifier",
+    ImportDeclaration: "ImportDeclaration",
+    ImportSpecifier: "ImportSpecifier",
+    ImportDefaultSpecifier: "ImportDefaultSpecifier",
+    ImportNamespaceSpecifier: "ImportNamespaceSpecifier"
+};

static/js/ketcher2/node_modules/espree/lib/comment-attachment.js

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+/**
+ * @fileoverview Attaches comments to the AST.
+ * @author Nicholas C. Zakas
+ */
+
+"use strict";
+
+//------------------------------------------------------------------------------
+// Requirements
+//------------------------------------------------------------------------------
+
+var astNodeTypes = require("./ast-node-types");
+
+//------------------------------------------------------------------------------
+// Private
+//------------------------------------------------------------------------------
+
+var extra = {
+    trailingComments: [],
+    leadingComments: [],
+    bottomRightStack: [],
+    previousNode: null
+};
+
+//------------------------------------------------------------------------------
+// Public
+//------------------------------------------------------------------------------
+
+module.exports = {
+
+    reset: function() {
+        extra.trailingComments = [];
+        extra.leadingComments = [];
+        extra.bottomRightStack = [];
+        extra.previousNode = null;
+    },
+
+    addComment: function(comment) {
+        extra.trailingComments.push(comment);
+        extra.leadingComments.push(comment);
+    },
+
+    processComment: function(node) {
+        var lastChild,
+            trailingComments,
+            i,
+            j;
+
+        if (node.type === astNodeTypes.Program) {
+            if (node.body.length > 0) {
+                return;
+            }
+        }
+
+        if (extra.trailingComments.length > 0) {
+
+            /*
+             * If the first comment in trailingComments comes after the
+             * current node, then we're good - all comments in the array will
+             * come after the node and so it's safe to add then as official
+             * trailingComments.
+             */
+            if (extra.trailingComments[0].range[0] >= node.range[1]) {
+                trailingComments = extra.trailingComments;
+                extra.trailingComments = [];
+            } else {
+
+                /*
+                 * Otherwise, if the first comment doesn't come after the
+                 * current node, that means we have a mix of leading and trailing
+                 * comments in the array and that leadingComments contains the
+                 * same items as trailingComments. Reset trailingComments to
+                 * zero items and we'll handle this by evaluating leadingComments
+                 * later.
+                 */
+                extra.trailingComments.length = 0;
+            }
+        } else {
+            if (extra.bottomRightStack.length > 0 &&
+                    extra.bottomRightStack[extra.bottomRightStack.length - 1].trailingComments &&
+                    extra.bottomRightStack[extra.bottomRightStack.length - 1].trailingComments[0].range[0] >= node.range[1]) {
+                trailingComments = extra.bottomRightStack[extra.bottomRightStack.length - 1].trailingComments;
+                delete extra.bottomRightStack[extra.bottomRightStack.length - 1].trailingComments;
+            }
+        }
+
+        // Eating the stack.
+        while (extra.bottomRightStack.length > 0 && extra.bottomRightStack[extra.bottomRightStack.length - 1].range[0] >= node.range[0]) {
+            lastChild = extra.bottomRightStack.pop();
+        }
+
+        if (lastChild) {
+            if (lastChild.leadingComments) {
+                if (lastChild.leadingComments[lastChild.leadingComments.length - 1].range[1] <= node.range[0]) {
+                    node.leadingComments = lastChild.leadingComments;
+                    delete lastChild.leadingComments;
+                } else {
+                    // A leading comment for an anonymous class had been stolen by its first MethodDefinition,
+                    // so this takes back the leading comment.
+                    // See Also: https://github.com/eslint/espree/issues/158
+                    for (i = lastChild.leadingComments.length - 2; i >= 0; --i) {
+                        if (lastChild.leadingComments[i].range[1] <= node.range[0]) {
+                            node.leadingComments = lastChild.leadingComments.splice(0, i + 1);
+                            break;
+                        }
+                    }
+                }
+            }
+        } else if (extra.leadingComments.length > 0) {
+            if (extra.leadingComments[extra.leadingComments.length - 1].range[1] <= node.range[0]) {
+                if (extra.previousNode) {
+                    for (j = 0; j < extra.leadingComments.length; j++) {
+                        if (extra.leadingComments[j].end < extra.previousNode.end) {
+                            extra.leadingComments.splice(j, 1);
+                            j--;
+                        }
+                    }
+                }
+                if (extra.leadingComments.length > 0) {
+                    node.leadingComments = extra.leadingComments;
+                    extra.leadingComments = [];
+                }
+            } else {
+
+                // https://github.com/eslint/espree/issues/2
+
+                /*
+                 * In special cases, such as return (without a value) and
+                 * debugger, all comments will end up as leadingComments and
+                 * will otherwise be eliminated. This extra step runs when the
+                 * bottomRightStack is empty and there are comments left
+                 * in leadingComments.
+                 *
+                 * This loop figures out the stopping point between the actual
+                 * leading and trailing comments by finding the location of the
+                 * first comment that comes after the given node.
+                 */
+                for (i = 0; i < extra.leadingComments.length; i++) {
+                    if (extra.leadingComments[i].range[1] > node.range[0]) {
+                        break;
+                    }
+                }
+
+                /*
+                 * Split the array based on the location of the first comment
+                 * that comes after the node. Keep in mind that this could
+                 * result in an empty array, and if so, the array must be
+                 * deleted.
+                 */
+                node.leadingComments = extra.leadingComments.slice(0, i);
+                if (node.leadingComments.length === 0) {
+                    delete node.leadingComments;
+                }
+
+                /*
+                 * Similarly, trailing comments are attached later. The variable
+                 * must be reset to null if there are no trailing comments.
+                 */
+                trailingComments = extra.leadingComments.slice(i);
+                if (trailingComments.length === 0) {
+                    trailingComments = null;
+                }
+            }
+        }
+
+        extra.previousNode = node;
+
+        if (trailingComments) {
+            node.trailingComments = trailingComments;
+        }
+
+        extra.bottomRightStack.push(node);
+    }
+
+};

static/js/ketcher2/node_modules/espree/lib/features.js

@@ -0,0 +1,32 @@
+/**
+ * @fileoverview The list of feature flags supported by the parser and their default
+ *      settings.
+ * @author Nicholas C. Zakas
+ */
+
+"use strict";
+
+//------------------------------------------------------------------------------
+// Requirements
+//------------------------------------------------------------------------------
+
+// None!
+
+//------------------------------------------------------------------------------
+// Public
+//------------------------------------------------------------------------------
+
+module.exports = {
+
+    // React JSX parsing
+    jsx: false,
+
+    // allow return statement in global scope
+    globalReturn: false,
+
+    // allow implied strict mode
+    impliedStrict: false,
+
+    // allow experimental object rest/spread
+    experimentalObjectRestSpread: false
+};

static/js/ketcher2/node_modules/espree/lib/token-translator.js

@@ -0,0 +1,258 @@
+/**
+ * @fileoverview Translates tokens between Acorn format and Esprima format.
+ * @author Nicholas C. Zakas
+ */
+/* eslint no-underscore-dangle: 0 */
+
+"use strict";
+
+//------------------------------------------------------------------------------
+// Requirements
+//------------------------------------------------------------------------------
+
+// none!
+
+//------------------------------------------------------------------------------
+// Private
+//------------------------------------------------------------------------------
+
+
+// Esprima Token Types
+var Token = {
+    Boolean: "Boolean",
+    EOF: "<end>",
+    Identifier: "Identifier",
+    Keyword: "Keyword",
+    Null: "Null",
+    Numeric: "Numeric",
+    Punctuator: "Punctuator",
+    String: "String",
+    RegularExpression: "RegularExpression",
+    Template: "Template",
+    JSXIdentifier: "JSXIdentifier",
+    JSXText: "JSXText"
+};
+
+/**
+ * Converts part of a template into an Esprima token.
+ * @param {AcornToken[]} tokens The Acorn tokens representing the template.
+ * @param {string} code The source code.
+ * @returns {EsprimaToken} The Esprima equivalent of the template token.
+ * @private
+ */
+function convertTemplatePart(tokens, code) {
+    var firstToken = tokens[0],
+        lastTemplateToken = tokens[tokens.length - 1];
+
+    var token = {
+        type: Token.Template,
+        value: code.slice(firstToken.start, lastTemplateToken.end)
+    };
+
+    if (firstToken.loc) {
+        token.loc = {
+            start: firstToken.loc.start,
+            end: lastTemplateToken.loc.end
+        };
+    }
+
+    if (firstToken.range) {
+        token.start = firstToken.range[0];
+        token.end = lastTemplateToken.range[1];
+        token.range = [token.start, token.end];
+    }
+
+    return token;
+}
+
+/**
+ * Contains logic to translate Acorn tokens into Esprima tokens.
+ * @param {Object} acornTokTypes The Acorn token types.
+ * @param {string} code The source code Acorn is parsing. This is necessary
+ *      to correct the "value" property of some tokens.
+ * @constructor
+ */
+function TokenTranslator(acornTokTypes, code) {
+
+    // token types
+    this._acornTokTypes = acornTokTypes;
+
+    // token buffer for templates
+    this._tokens = [];
+
+    // track the last curly brace
+    this._curlyBrace = null;
+
+    // the source code
+    this._code = code;
+
+}
+
+TokenTranslator.prototype = {
+    constructor: TokenTranslator,
+
+    /**
+     * Translates a single Esprima token to a single Acorn token. This may be
+     * inaccurate due to how templates are handled differently in Esprima and
+     * Acorn, but should be accurate for all other tokens.
+     * @param {AcornToken} token The Acorn token to translate.
+     * @param {Object} extra Espree extra object.
+     * @returns {EsprimaToken} The Esprima version of the token.
+     */
+    translate: function(token, extra) {
+
+        var type = token.type,
+            tt = this._acornTokTypes;
+
+        if (type === tt.name) {
+            token.type = Token.Identifier;
+
+            // TODO: See if this is an Acorn bug
+            if (token.value === "static") {
+                token.type = Token.Keyword;
+            }
+
+            if (extra.ecmaVersion > 5 && (token.value === "yield" || token.value === "let")) {
+                token.type = Token.Keyword;
+            }
+
+        } else if (type === tt.semi || type === tt.comma ||
+                 type === tt.parenL || type === tt.parenR ||
+                 type === tt.braceL || type === tt.braceR ||
+                 type === tt.dot || type === tt.bracketL ||
+                 type === tt.colon || type === tt.question ||
+                 type === tt.bracketR || type === tt.ellipsis ||
+                 type === tt.arrow || type === tt.jsxTagStart ||
+                 type === tt.incDec || type === tt.starstar ||
+                 type === tt.jsxTagEnd || type === tt.prefix ||
+                 (type.binop && !type.keyword) ||
+                 type.isAssign) {
+
+            token.type = Token.Punctuator;
+            token.value = this._code.slice(token.start, token.end);
+        } else if (type === tt.jsxName) {
+            token.type = Token.JSXIdentifier;
+        } else if (type.label === "jsxText" || type === tt.jsxAttrValueToken) {
+            token.type = Token.JSXText;
+        } else if (type.keyword) {
+            if (type.keyword === "true" || type.keyword === "false") {
+                token.type = Token.Boolean;
+            } else if (type.keyword === "null") {
+                token.type = Token.Null;
+            } else {
+                token.type = Token.Keyword;
+            }
+        } else if (type === tt.num) {
+            token.type = Token.Numeric;
+            token.value = this._code.slice(token.start, token.end);
+        } else if (type === tt.string) {
+
+            if (extra.jsxAttrValueToken) {
+                extra.jsxAttrValueToken = false;
+                token.type = Token.JSXText;
+            } else {
+                token.type = Token.String;
+            }
+
+            token.value = this._code.slice(token.start, token.end);
+        } else if (type === tt.regexp) {
+            token.type = Token.RegularExpression;
+            var value = token.value;
+            token.regex = {
+                flags: value.flags,
+                pattern: value.pattern
+            };
+            token.value = "/" + value.pattern + "/" + value.flags;
+        }
+
+        return token;
+    },
+
+    /**
+     * Function to call during Acorn's onToken handler.
+     * @param {AcornToken} token The Acorn token.
+     * @param {Object} extra The Espree extra object.
+     * @returns {void}
+     */
+    onToken: function(token, extra) {
+
+        var that = this,
+            tt = this._acornTokTypes,
+            tokens = extra.tokens,
+            templateTokens = this._tokens;
+
+        /**
+         * Flushes the buffered template tokens and resets the template
+         * tracking.
+         * @returns {void}
+         * @private
+         */
+        function translateTemplateTokens() {
+            tokens.push(convertTemplatePart(that._tokens, that._code));
+            that._tokens = [];
+        }
+
+        if (token.type === tt.eof) {
+
+            // might be one last curlyBrace
+            if (this._curlyBrace) {
+                tokens.push(this.translate(this._curlyBrace, extra));
+            }
+
+            return;
+        }
+
+        if (token.type === tt.backQuote) {
+
+            // if there's already a curly, it's not part of the template
+            if (this._curlyBrace) {
+                tokens.push(this.translate(this._curlyBrace, extra));
+                this._curlyBrace = null;
+            }
+
+            templateTokens.push(token);
+
+            // it's the end
+            if (templateTokens.length > 1) {
+                translateTemplateTokens();
+            }
+
+            return;
+        } else if (token.type === tt.dollarBraceL) {
+            templateTokens.push(token);
+            translateTemplateTokens();
+            return;
+        } else if (token.type === tt.braceR) {
+
+            // if there's already a curly, it's not part of the template
+            if (this._curlyBrace) {
+                tokens.push(this.translate(this._curlyBrace, extra));
+            }
+
+            // store new curly for later
+            this._curlyBrace = token;
+            return;
+        } else if (token.type === tt.template || token.type === tt.invalidTemplate) {
+            if (this._curlyBrace) {
+                templateTokens.push(this._curlyBrace);
+                this._curlyBrace = null;
+            }
+
+            templateTokens.push(token);
+            return;
+        }
+
+        if (this._curlyBrace) {
+            tokens.push(this.translate(this._curlyBrace, extra));
+            this._curlyBrace = null;
+        }
+
+        tokens.push(this.translate(token, extra));
+    }
+};
+
+//------------------------------------------------------------------------------
+// Public
+//------------------------------------------------------------------------------
+
+module.exports = TokenTranslator;

static/js/ketcher2/node_modules/espree/lib/visitor-keys.js

@@ -0,0 +1,127 @@
+/**
+ * @fileoverview The visitor keys for the node types Espree supports
+ * @author Nicholas C. Zakas
+ *
+ * This file contains code from estraverse-fb.
+ *
+ * The MIT license. Copyright (c) 2014 Ingvar Stepanyan
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ *  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+"use strict";
+
+//------------------------------------------------------------------------------
+// Requirements
+//------------------------------------------------------------------------------
+
+// None!
+
+//------------------------------------------------------------------------------
+// Public
+//------------------------------------------------------------------------------
+
+module.exports = {
+
+    // ECMAScript
+    AssignmentExpression: ["left", "right"],
+    AssignmentPattern: ["left", "right"],
+    ArrayExpression: ["elements"],
+    ArrayPattern: ["elements"],
+    ArrowFunctionExpression: ["params", "body"],
+    BlockStatement: ["body"],
+    BinaryExpression: ["left", "right"],
+    BreakStatement: ["label"],
+    CallExpression: ["callee", "arguments"],
+    CatchClause: ["param", "body"],
+    ClassBody: ["body"],
+    ClassDeclaration: ["id", "superClass", "body"],
+    ClassExpression: ["id", "superClass", "body"],
+    ConditionalExpression: ["test", "consequent", "alternate"],
+    ContinueStatement: ["label"],
+    DebuggerStatement: [],
+    DirectiveStatement: [],
+    DoWhileStatement: ["body", "test"],
+    EmptyStatement: [],
+    ExportAllDeclaration: ["source"],
+    ExportDefaultDeclaration: ["declaration"],
+    ExportNamedDeclaration: ["declaration", "specifiers", "source"],
+    ExportSpecifier: ["exported", "local"],
+    ExpressionStatement: ["expression"],
+    ForStatement: ["init", "test", "update", "body"],
+    ForInStatement: ["left", "right", "body"],
+    ForOfStatement: ["left", "right", "body"],
+    FunctionDeclaration: ["id", "params", "body"],
+    FunctionExpression: ["id", "params", "body"],
+    Identifier: [],
+    IfStatement: ["test", "consequent", "alternate"],
+    ImportDeclaration: ["specifiers", "source"],
+    ImportDefaultSpecifier: ["local"],
+    ImportNamespaceSpecifier: ["local"],
+    ImportSpecifier: ["imported", "local"],
+    Literal: [],
+    LabeledStatement: ["label", "body"],
+    LogicalExpression: ["left", "right"],
+    MemberExpression: ["object", "property"],
+    MetaProperty: ["meta", "property"],
+    MethodDefinition: ["key", "value"],
+    ModuleSpecifier: [],
+    NewExpression: ["callee", "arguments"],
+    ObjectExpression: ["properties"],
+    ObjectPattern: ["properties"],
+    Program: ["body"],
+    Property: ["key", "value"],
+    RestElement: [ "argument" ],
+    ReturnStatement: ["argument"],
+    SequenceExpression: ["expressions"],
+    SpreadElement: ["argument"],
+    Super: [],
+    SwitchStatement: ["discriminant", "cases"],
+    SwitchCase: ["test", "consequent"],
+    TaggedTemplateExpression: ["tag", "quasi"],
+    TemplateElement: [],
+    TemplateLiteral: ["quasis", "expressions"],
+    ThisExpression: [],
+    ThrowStatement: ["argument"],
+    TryStatement: ["block", "handler", "finalizer"],
+    UnaryExpression: ["argument"],
+    UpdateExpression: ["argument"],
+    VariableDeclaration: ["declarations"],
+    VariableDeclarator: ["id", "init"],
+    WhileStatement: ["test", "body"],
+    WithStatement: ["object", "body"],
+    YieldExpression: ["argument"],
+
+    // JSX
+    JSXIdentifier: [],
+    JSXNamespacedName: ["namespace", "name"],
+    JSXMemberExpression: ["object", "property"],
+    JSXEmptyExpression: [],
+    JSXExpressionContainer: ["expression"],
+    JSXElement: ["openingElement", "closingElement", "children"],
+    JSXClosingElement: ["name"],
+    JSXOpeningElement: ["name", "attributes"],
+    JSXAttribute: ["name", "value"],
+    JSXText: null,
+    JSXSpreadAttribute: ["argument"],
+
+    // Experimental features
+    ExperimentalRestProperty: ["argument"],
+    ExperimentalSpreadProperty: ["argument"]
+};