mirror of
https://github.com/Jermolene/TiddlyWiki5
synced 2024-11-06 01:56:20 +00:00
241 lines
9.6 KiB
JavaScript
241 lines
9.6 KiB
JavaScript
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/*
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Copyright (C) 2012 Ariya Hidayat <ariya.hidayat@gmail.com>
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions are met:
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* Redistributions of source code must retain the above copyright
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notice, this list of conditions and the following disclaimer.
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* Redistributions in binary form must reproduce the above copyright
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notice, this list of conditions and the following disclaimer in the
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documentation and/or other materials provided with the distribution.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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ARE DISCLAIMED. IN NO EVENT SHALL <COPYRIGHT HOLDER> BE LIABLE FOR ANY
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DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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/*jslint node:true browser:true */
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/*global esmorph:true,esprima:true */
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(function (exports) {
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'use strict';
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var Syntax = {
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AssignmentExpression: 'AssignmentExpression',
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ArrayExpression: 'ArrayExpression',
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BlockStatement: 'BlockStatement',
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BinaryExpression: 'BinaryExpression',
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BreakStatement: 'BreakStatement',
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CallExpression: 'CallExpression',
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CatchClause: 'CatchClause',
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ConditionalExpression: 'ConditionalExpression',
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ContinueStatement: 'ContinueStatement',
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DoWhileStatement: 'DoWhileStatement',
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DebuggerStatement: 'DebuggerStatement',
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EmptyStatement: 'EmptyStatement',
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ExpressionStatement: 'ExpressionStatement',
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ForStatement: 'ForStatement',
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ForInStatement: 'ForInStatement',
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FunctionDeclaration: 'FunctionDeclaration',
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FunctionExpression: 'FunctionExpression',
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Identifier: 'Identifier',
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IfStatement: 'IfStatement',
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Literal: 'Literal',
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LabeledStatement: 'LabeledStatement',
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LogicalExpression: 'LogicalExpression',
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MemberExpression: 'MemberExpression',
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NewExpression: 'NewExpression',
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ObjectExpression: 'ObjectExpression',
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Program: 'Program',
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Property: 'Property',
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ReturnStatement: 'ReturnStatement',
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SequenceExpression: 'SequenceExpression',
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SwitchStatement: 'SwitchStatement',
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SwitchCase: 'SwitchCase',
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ThisExpression: 'ThisExpression',
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ThrowStatement: 'ThrowStatement',
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TryStatement: 'TryStatement',
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UnaryExpression: 'UnaryExpression',
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UpdateExpression: 'UpdateExpression',
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VariableDeclaration: 'VariableDeclaration',
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VariableDeclarator: 'VariableDeclarator',
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WhileStatement: 'WhileStatement',
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WithStatement: 'WithStatement'
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};
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// Executes visitor on the object and its children (recursively).
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function traverse(object, visitor, master) {
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var key, child, parent, path;
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parent = (typeof master === 'undefined') ? [] : master;
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if (visitor.call(null, object, parent) === false) {
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return;
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}
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for (key in object) {
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if (object.hasOwnProperty(key)) {
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child = object[key];
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path = [ object ];
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path.push(parent);
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if (typeof child === 'object' && child !== null) {
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traverse(child, visitor, path);
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}
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}
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}
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}
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// Insert a prolog in the body of every function.
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// It will be in the form of a function call:
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//
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// traceName(object);
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//
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// where the object contains the following properties:
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//
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// 'name' holds the name of the function
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// 'lineNumber' holds the starting line number of the function block
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// 'range' contains the index-based range of the function
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//
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// The name of the function represents the associated reference for
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// the function (deduced on a best-effort basis if it is not
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// a function declaration).
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//
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// If traceName is a function instead of a string, it will be invoked and
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// the result will be used as the entire prolog. The arguments for the
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// invocation are the function name, range, and location info.
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function traceFunctionEntrance(traceName) {
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return function (code) {
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var tree,
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functionList,
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param,
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signature,
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pos,
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i;
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tree = esprima.parse(code, { range: true, loc: true });
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functionList = [];
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traverse(tree, function (node, path) {
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var parent;
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if (node.type === Syntax.FunctionDeclaration) {
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functionList.push({
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name: node.id.name,
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range: node.range,
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loc: node.loc,
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blockStart: node.body.range[0]
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});
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} else if (node.type === Syntax.FunctionExpression) {
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parent = path[0];
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if (parent.type === Syntax.AssignmentExpression) {
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if (typeof parent.left.range !== 'undefined') {
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functionList.push({
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name: code.slice(parent.left.range[0],
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parent.left.range[1] + 1),
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range: node.range,
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loc: node.loc,
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blockStart: node.body.range[0]
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});
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}
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} else if (parent.type === Syntax.VariableDeclarator) {
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functionList.push({
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name: parent.id.name,
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range: node.range,
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loc: node.loc,
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blockStart: node.body.range[0]
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});
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} else if (parent.type === Syntax.CallExpression) {
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functionList.push({
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name: parent.id ? parent.id.name : '[Anonymous]',
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range: node.range,
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loc: node.loc,
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blockStart: node.body.range[0]
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});
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} else if (typeof parent.length === 'number') {
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functionList.push({
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name: parent.id ? parent.id.name : '[Anonymous]',
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range: node.range,
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loc: node.loc,
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blockStart: node.body.range[0]
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});
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} else if (typeof parent.key !== 'undefined') {
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if (parent.key.type === 'Identifier') {
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if (parent.value === node && parent.key.name) {
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functionList.push({
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name: parent.key.name,
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range: node.range,
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loc: node.loc,
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blockStart: node.body.range[0]
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});
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}
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}
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}
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}
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});
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// Insert the instrumentation code from the last entry.
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// This is to ensure that the range for each entry remains valid)
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// (it won't shift due to some new inserting string before the range).
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for (i = functionList.length - 1; i >= 0; i -= 1) {
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param = {
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name: functionList[i].name,
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range: functionList[i].range,
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loc: functionList[i].loc
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};
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if (typeof traceName === 'function') {
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signature = traceName.call(null, param);
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} else {
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signature = traceName + '({ ';
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signature += 'name: \'' + functionList[i].name + '\', ';
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if (typeof functionList[i].loc !== 'undefined') {
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signature += 'lineNumber: ' + functionList[i].loc.start.line + ', ';
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}
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signature += 'range: [' + functionList[i].range[0] + ', ' +
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functionList[i].range[1] + '] ';
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signature += '});';
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}
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pos = functionList[i].blockStart + 1;
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code = code.slice(0, pos) + '\n' + signature + code.slice(pos, code.length);
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}
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return code;
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};
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}
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function modify(code, modifiers) {
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var i;
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if (Object.prototype.toString.call(modifiers) === '[object Array]') {
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for (i = 0; i < modifiers.length; i += 1) {
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code = modifiers[i].call(null, code);
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}
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} else if (typeof modifiers === 'function') {
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code = modifiers.call(null, code);
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} else {
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throw new Error('Wrong use of esmorph.modify() function');
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}
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return code;
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}
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// Sync with package.json.
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exports.version = '0.0.0-dev';
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exports.modify = modify;
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exports.Tracer = {
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FunctionEntrance: traceFunctionEntrance
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};
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}(typeof exports === 'undefined' ? (esmorph = {}) : exports));
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