2012-03-11 21:50:55 +01:00
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/*
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MIT License http://www.opensource.org/licenses/mit-license.php
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Author Tobias Koppers @sokra
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*/
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2012-03-10 13:11:23 +01:00
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var esprima = require("esprima");
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// Syntax: https://developer.mozilla.org/en/SpiderMonkey/Parser_API
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function walkStatements(context, statements) {
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statements.forEach(function(statement) {
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walkStatement(context, statement);
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});
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}
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function walkStatement(context, statement) {
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switch(statement.type) {
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// Real Statements
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case "BlockStatement":
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walkStatements(context, statement.body);
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break;
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case "ExpressionStatement":
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walkExpression(context, statement.expression);
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break;
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case "IfStatement":
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walkExpression(context, statement.test);
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walkStatement(context, statement.consequent);
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if(statement.alternate)
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walkStatement(context, statement.alternate);
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break;
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case "LabeledStatement":
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walkStatement(context, statement.body);
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break;
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case "WithStatement":
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walkExpression(context, statement.object);
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walkStatement(context, statement.body);
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break;
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case "SwitchStatement":
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walkExpression(context, statement.discriminant);
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walkSwitchCases(context, statement.cases);
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break;
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case "ReturnStatement":
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case "ThrowStatement":
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if(statement.argument)
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walkExpression(context, statement.argument);
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break;
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case "TryStatement":
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walkStatement(context, statement.block);
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walkCatchClauses(context, statement.handlers);
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if(statement.finalizer)
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walkStatement(context, statement.finalizer);
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break;
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case "WhileStatement":
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case "DoWhileStatement":
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walkExpression(context, statement.test);
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walkStatement(context, statement.body);
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break;
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case "ForStatement":
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if(statement.init) {
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if(statement.init.type === "VariableDeclaration")
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walkStatement(context, statement.init);
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else
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walkExpression(context, statement.init);
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}
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if(statement.test)
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walkExpression(context, statement.test);
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if(statement.update)
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walkExpression(context, statement.update);
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walkStatement(context, statement.body);
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break;
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case "ForInStatement":
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if(statement.left.type === "VariableDeclaration")
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walkStatement(context, statement.left);
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else
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walkExpression(context, statement.left);
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walkExpression(context, statement.right);
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walkStatement(context, statement.body);
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break;
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// Declarations
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case "FunctionDeclaration":
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2012-04-05 14:59:01 +02:00
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if(context.options.overwrites.hasOwnProperty(statement.name)) {
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2012-03-15 14:38:55 +01:00
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context.overwrite.push(statement.name);
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2012-03-14 16:33:46 +01:00
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}
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2012-03-15 14:38:55 +01:00
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var old = addOverwrites(context, statement.params);
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2012-03-10 13:11:23 +01:00
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if(statement.body.type === "BlockStatement")
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walkStatement(context, statement.body);
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else
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walkExpression(context, statement.body);
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2012-03-15 14:38:55 +01:00
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context.overwrite.length = old;
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2012-03-10 13:11:23 +01:00
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break;
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case "VariableDeclaration":
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if(statement.declarations)
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walkVariableDeclarators(context, statement.declarations);
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break;
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}
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}
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function walkSwitchCases(context, switchCases) {
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switchCases.forEach(function(switchCase) {
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if(switchCase.test)
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walkExpression(context, switchCase.test);
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walkStatements(context, switchCase.consequent);
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});
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}
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function walkCatchClauses(context, catchClauses) {
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catchClauses.forEach(function(catchClause) {
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if(catchClause.guard)
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walkExpression(context, catchClause.guard);
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walkStatement(context, catchClause.body);
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});
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}
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function walkVariableDeclarators(context, declarators) {
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declarators.forEach(function(declarator) {
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switch(declarator.type) {
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case "VariableDeclarator":
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2012-03-15 23:01:42 +01:00
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if(declarator.id.type === "Identifier" &&
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2012-04-05 14:59:01 +02:00
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context.options.overwrites.hasOwnProperty(declarator.id.name)) {
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2012-03-15 23:01:42 +01:00
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context.overwrite.push(declarator.id.name);
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2012-03-15 14:38:55 +01:00
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}
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2012-03-10 13:11:23 +01:00
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if(declarator.init)
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walkExpression(context, declarator.init);
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break;
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}
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});
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}
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function walkExpressions(context, expressions) {
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expressions.forEach(function(expression) {
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walkExpression(context, expression);
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});
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}
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function walkExpression(context, expression) {
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switch(expression.type) {
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case "ArrayExpression":
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if(expression.elements)
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walkExpressions(context, expression.elements);
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break;
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case "ObjectExpression":
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expression.properties.forEach(function(prop) {
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walkExpression(context, prop.value);
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});
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break;
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case "FunctionExpression":
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2012-03-15 14:38:55 +01:00
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var old = addOverwrites(context, expression.params);
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2012-03-10 13:11:23 +01:00
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if(expression.body.type === "BlockStatement")
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walkStatement(context, expression.body);
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else
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walkExpression(context, expression.body);
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2012-03-15 14:38:55 +01:00
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context.overwrite.length = old;
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2012-03-10 13:11:23 +01:00
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break;
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case "SequenceExpression":
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if(expression.expressions)
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walkExpressions(context, expression.expressions);
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break;
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case "UpdateExpression":
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walkExpression(context, expression.argument);
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break;
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2012-03-26 14:49:03 +02:00
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case "UnaryExpression":
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if(expression.operator === "typeof" &&
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expression.argument &&
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expression.argument.type === "Identifier" &&
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expression.argument.name === "require")
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break;
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walkExpression(context, expression.argument);
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break;
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2012-03-10 13:11:23 +01:00
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case "BinaryExpression":
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case "LogicalExpression":
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walkExpression(context, expression.left);
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walkExpression(context, expression.right);
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break;
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2012-03-21 12:41:03 +01:00
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case "AssignmentExpression":
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if(expression.left.type !== "Identifier" ||
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expression.left.name !== "require")
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walkExpression(context, expression.left);
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walkExpression(context, expression.right);
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break;
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2012-03-10 13:11:23 +01:00
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case "ConditionalExpression":
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walkExpression(context, expression.test);
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walkExpression(context, expression.alternate);
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walkExpression(context, expression.consequent);
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break;
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case "NewExpression":
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2012-03-11 22:45:21 +01:00
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walkExpression(context, expression.callee);
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2012-03-10 13:11:23 +01:00
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if(expression.arguments)
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walkExpressions(context, expression.arguments);
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break;
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case "CallExpression":
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2012-03-14 16:33:46 +01:00
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var noCallee = false;
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2012-08-06 21:43:57 +02:00
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function processAmdArray(params, elements) {
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params.forEach(function(param, idx) {
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if(param.conditional) {
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context.requires = context.requires || [];
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param.conditional.forEach(function(paramItem) {
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context.requires.push({
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name: paramItem.value,
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expressionRange: paramItem.range,
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line: elements[idx].loc.start.line,
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column: elements[idx].loc.start.column
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});
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});
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} else if(param.code) {
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// make context
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var pos = param.value.indexOf("/");
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context.contexts = context.contexts || [];
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if(pos === -1) {
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var newContext = {
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name: ".",
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valueRange: elements[idx].range,
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line: elements[idx].loc.start.line,
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column: elements[idx].loc.start.column
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};
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context.contexts.push(newContext);
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} else {
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var match = /\/[^\/]*$/.exec(param.value);
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var dirname = param.value.substring(0, match.index);
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var remainder = "." + param.value.substring(match.index);
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var newContext = {
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name: dirname,
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replace: [param.range, remainder],
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valueRange: elements[idx].range,
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line: elements[idx].loc.start.line,
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column: elements[idx].loc.start.column
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};
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context.contexts.push(newContext);
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}
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2012-08-23 00:10:52 +02:00
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} else if(param.value == "require") {
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// require function
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context.requires = context.requires || [];
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context.requires.push({
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requireFunction: true,
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expressionRange: elements[idx].range,
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line: elements[idx].loc.start.line,
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column: elements[idx].loc.start.column
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});
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2012-08-06 21:43:57 +02:00
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} else {
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// normal require
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context.requires = context.requires || [];
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context.requires.push({
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name: param.value,
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expressionRange: elements[idx].range,
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line: elements[idx].loc.start.line,
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column: elements[idx].loc.start.column
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});
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}
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});
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}
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2012-08-07 23:50:17 +02:00
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// AMD require.config
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if(context.overwrite.indexOf("require") === -1 &&
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expression.callee && expression.arguments &&
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expression.arguments.length == 1 &&
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expression.callee.type === "MemberExpression" &&
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expression.callee.object.type === "Identifier" &&
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expression.callee.object.name === "require" &&
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expression.callee.property.type === "Identifier" &&
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expression.callee.property.name === "config") {
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context.requires = context.requires || [];
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context.requires.push({
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name: "__webpack_amd_require",
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line: expression.callee.loc.start.line,
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column: expression.callee.loc.start.column,
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variable: "require"
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});
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noCallee = true;
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}
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2012-08-06 21:43:57 +02:00
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// AMD require
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2012-08-07 22:48:09 +02:00
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if(context.overwrite.indexOf("require") === -1 &&
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expression.callee && expression.arguments &&
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expression.arguments.length >= 1 &&
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expression.arguments.length <= 2 &&
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expression.callee.type === "Identifier" &&
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expression.callee.name === "require" &&
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expression.arguments[0].type === "ArrayExpression") {
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context.requires = context.requires || [];
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context.requires.push({
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name: "__webpack_amd_require",
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line: expression.callee.loc.start.line,
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column: expression.callee.loc.start.column,
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variable: "require"
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});
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var newContext = {
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requires: [],
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amdRange: expression.arguments[0].range,
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line: expression.loc.start.line,
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column: expression.loc.start.column,
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ignoreOverride: true,
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overwrite: context.overwrite.slice(),
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options: context.options
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};
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if(expression.arguments.length >= 2 &&
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expression.arguments[1].type === "FunctionExpression" &&
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expression.arguments[1].body &&
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expression.arguments[1].body.type === "BlockStatement" &&
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expression.arguments[1].body.range)
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newContext.blockRange = [
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expression.arguments[1].body.range[0]+1,
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expression.arguments[1].body.range[1]-1
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];
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context.asyncs = context.asyncs || [];
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context.asyncs.push(newContext);
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context = newContext;
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var params = parseCalculatedStringArray(expression.arguments[0]);
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var elements = expression.arguments[0].elements;
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processAmdArray(params, elements);
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noCallee = true;
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}
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// AMD define
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if(context.overwrite.indexOf("define") === -1 &&
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expression.callee && expression.arguments &&
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2012-08-06 21:43:57 +02:00
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expression.arguments.length == 2 &&
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expression.callee.type === "Identifier" &&
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2012-08-07 22:48:09 +02:00
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expression.callee.name === "define") {
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2012-08-23 00:10:52 +02:00
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var amdNameRange;
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if(expression.arguments[0].type == "ArrayExpression") {
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var params = parseCalculatedStringArray(expression.arguments[0]);
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var elements = expression.arguments[0].elements;
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processAmdArray(params, elements);
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} else {
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amdNameRange = expression.arguments[0].range;
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}
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2012-08-06 21:43:57 +02:00
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context.requires = context.requires || [];
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2012-08-07 22:48:09 +02:00
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context.requires.push({
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name: "__webpack_amd_define",
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2012-08-23 18:43:25 +02:00
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append: "(module)",
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2012-08-07 22:48:09 +02:00
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line: expression.callee.loc.start.line,
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column: expression.callee.loc.start.column,
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2012-08-23 00:10:52 +02:00
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amdNameRange: amdNameRange,
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label: expression.arguments[0].value,
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2012-08-07 22:48:09 +02:00
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variable: "define"
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});
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2012-08-07 20:52:48 +02:00
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noCallee = true;
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}
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// AMD define
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if(context.overwrite.indexOf("define") === -1 &&
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expression.callee && expression.arguments &&
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expression.arguments.length == 1 &&
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expression.callee.type === "Identifier" &&
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expression.callee.name === "define") {
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2012-08-06 21:43:57 +02:00
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context.requires.push({
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2012-08-07 20:52:48 +02:00
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name: "__webpack_amd_define",
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2012-08-23 18:43:25 +02:00
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append: "(module)",
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2012-08-06 21:43:57 +02:00
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line: expression.callee.loc.start.line,
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2012-08-07 20:52:48 +02:00
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column: expression.callee.loc.start.column,
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variable: "define"
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2012-08-06 21:43:57 +02:00
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});
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2012-08-07 20:52:48 +02:00
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|
|
context.ignoreOverride = true;
|
2012-08-06 21:43:57 +02:00
|
|
|
noCallee = true;
|
|
|
|
}
|
|
|
|
if(context.overwrite.indexOf("define") === -1 &&
|
|
|
|
expression.callee && expression.arguments &&
|
|
|
|
expression.arguments.length == 3 &&
|
|
|
|
expression.callee.type === "Identifier" &&
|
|
|
|
expression.callee.name === "define") {
|
|
|
|
var params = parseCalculatedStringArray(expression.arguments[1]);
|
|
|
|
var elements = expression.arguments[1].type == "ArrayExpression" ?
|
|
|
|
expression.arguments[1].elements : [expression.arguments[1]];
|
|
|
|
processAmdArray(params, elements);
|
|
|
|
context.requires = context.requires || [];
|
|
|
|
context.requires.push({
|
2012-08-07 20:52:48 +02:00
|
|
|
name: "__webpack_amd_define",
|
2012-08-23 18:43:25 +02:00
|
|
|
append: "(module)",
|
2012-08-06 22:17:03 +02:00
|
|
|
amdNameRange: expression.arguments[0].range,
|
|
|
|
label: expression.arguments[0].value+"",
|
2012-08-06 21:43:57 +02:00
|
|
|
line: expression.callee.loc.start.line,
|
2012-08-07 20:52:48 +02:00
|
|
|
column: expression.callee.loc.start.column,
|
|
|
|
variable: "define"
|
2012-08-06 21:43:57 +02:00
|
|
|
});
|
|
|
|
noCallee = true;
|
|
|
|
}
|
|
|
|
// CommonJS
|
2012-03-19 19:59:38 +01:00
|
|
|
if(context.overwrite.indexOf("require") === -1 &&
|
2012-03-14 16:33:46 +01:00
|
|
|
expression.callee && expression.arguments &&
|
2012-03-11 21:37:18 +01:00
|
|
|
expression.arguments.length == 1 &&
|
2012-03-10 13:11:23 +01:00
|
|
|
expression.callee.type === "Identifier" &&
|
2012-08-07 22:48:09 +02:00
|
|
|
expression.callee.name === "require" &&
|
|
|
|
expression.arguments[0].type !== "ArrayExpression") {
|
2012-07-04 11:50:20 +02:00
|
|
|
// "require(...)"
|
2012-03-11 21:37:18 +01:00
|
|
|
var param = parseCalculatedString(expression.arguments[0]);
|
2012-03-19 19:59:38 +01:00
|
|
|
if(param.conditional) {
|
|
|
|
context.requires = context.requires || [];
|
|
|
|
param.conditional.forEach(function(paramItem) {
|
|
|
|
context.requires.push({
|
|
|
|
name: paramItem.value,
|
|
|
|
valueRange: paramItem.range,
|
|
|
|
line: expression.loc.start.line,
|
|
|
|
column: expression.loc.start.column
|
|
|
|
});
|
|
|
|
});
|
|
|
|
} else if(param.code) {
|
2012-03-11 21:37:18 +01:00
|
|
|
// make context
|
|
|
|
var pos = param.value.indexOf("/");
|
2012-03-14 16:33:46 +01:00
|
|
|
context.contexts = context.contexts || [];
|
2012-03-11 21:37:18 +01:00
|
|
|
if(pos === -1) {
|
2012-03-14 16:33:46 +01:00
|
|
|
var newContext = {
|
|
|
|
name: ".",
|
|
|
|
require: true,
|
|
|
|
calleeRange: expression.callee.range,
|
|
|
|
line: expression.loc.start.line,
|
|
|
|
column: expression.loc.start.column
|
|
|
|
};
|
|
|
|
context.contexts.push(newContext);
|
2012-03-11 21:37:18 +01:00
|
|
|
} else {
|
|
|
|
var match = /\/[^\/]*$/.exec(param.value);
|
|
|
|
var dirname = param.value.substring(0, match.index);
|
|
|
|
var remainder = "." + param.value.substring(match.index);
|
|
|
|
var newContext = {
|
|
|
|
name: dirname,
|
|
|
|
require: true,
|
|
|
|
replace: [param.range, remainder],
|
|
|
|
calleeRange: expression.callee.range,
|
|
|
|
line: expression.loc.start.line,
|
|
|
|
column: expression.loc.start.column
|
|
|
|
};
|
|
|
|
context.contexts.push(newContext);
|
|
|
|
}
|
|
|
|
} else {
|
|
|
|
// normal require
|
|
|
|
context.requires = context.requires || [];
|
|
|
|
context.requires.push({
|
|
|
|
name: param.value,
|
2012-03-15 14:38:55 +01:00
|
|
|
expressionRange: [expression.callee.range[0], expression.range[1]],
|
2012-03-11 21:37:18 +01:00
|
|
|
line: expression.loc.start.line,
|
|
|
|
column: expression.loc.start.column
|
|
|
|
});
|
|
|
|
}
|
2012-03-14 16:33:46 +01:00
|
|
|
noCallee = true;
|
2012-03-10 13:11:23 +01:00
|
|
|
}
|
2012-08-06 21:43:57 +02:00
|
|
|
// require.ensure
|
2012-03-19 19:59:38 +01:00
|
|
|
if(context.overwrite.indexOf("require") === -1 &&
|
2012-03-14 16:33:46 +01:00
|
|
|
expression.callee && expression.arguments &&
|
2012-03-10 13:11:23 +01:00
|
|
|
expression.arguments.length >= 1 &&
|
|
|
|
expression.callee.type === "MemberExpression" &&
|
|
|
|
expression.callee.object.type === "Identifier" &&
|
|
|
|
expression.callee.object.name === "require" &&
|
|
|
|
expression.callee.property.type === "Identifier" &&
|
2012-04-05 14:59:01 +02:00
|
|
|
{async:1, ensure:1}.hasOwnProperty(expression.callee.property.name)) {
|
2012-07-04 11:50:20 +02:00
|
|
|
// "require.ensure(...)" or "require.async(...)"
|
2012-03-10 13:11:23 +01:00
|
|
|
var param = parseStringArray(expression.arguments[0]);
|
|
|
|
var newContext = {
|
|
|
|
requires: [],
|
2012-05-21 22:59:31 +02:00
|
|
|
propertyRange: expression.callee.property.range,
|
2012-03-10 13:11:23 +01:00
|
|
|
namesRange: expression.arguments[0].range,
|
|
|
|
line: expression.loc.start.line,
|
2012-03-14 16:33:46 +01:00
|
|
|
column: expression.loc.start.column,
|
2012-03-15 14:38:55 +01:00
|
|
|
ignoreOverride: true,
|
|
|
|
overwrite: context.overwrite.slice(),
|
|
|
|
options: context.options
|
2012-03-10 13:11:23 +01:00
|
|
|
};
|
|
|
|
param.forEach(function(r) {
|
|
|
|
newContext.requires.push({name: r});
|
|
|
|
});
|
2012-04-05 14:59:01 +02:00
|
|
|
if(expression.arguments.length >= 2 &&
|
|
|
|
expression.arguments[1].type === "FunctionExpression" &&
|
|
|
|
expression.arguments[1].body &&
|
|
|
|
expression.arguments[1].body.type === "BlockStatement" &&
|
|
|
|
expression.arguments[1].body.range)
|
|
|
|
newContext.blockRange = [
|
|
|
|
expression.arguments[1].body.range[0]+1,
|
|
|
|
expression.arguments[1].body.range[1]-1
|
|
|
|
];
|
2012-05-17 12:45:48 +02:00
|
|
|
if(expression.arguments[2]) {
|
|
|
|
newContext.name = parseString(expression.arguments[2]);
|
|
|
|
newContext.nameRange = expression.arguments[2].range;
|
|
|
|
}
|
2012-04-05 14:59:01 +02:00
|
|
|
context.asyncs = context.asyncs || [];
|
2012-03-10 13:11:23 +01:00
|
|
|
context.asyncs.push(newContext);
|
|
|
|
context = newContext;
|
2012-03-14 16:33:46 +01:00
|
|
|
noCallee = true;
|
2012-03-10 13:11:23 +01:00
|
|
|
}
|
2012-08-06 21:43:57 +02:00
|
|
|
// (non-standard) require.context
|
2012-03-19 19:59:38 +01:00
|
|
|
if(context.overwrite.indexOf("require") === -1 &&
|
2012-03-14 16:33:46 +01:00
|
|
|
expression.callee && expression.arguments &&
|
2012-03-11 21:37:18 +01:00
|
|
|
expression.arguments.length == 1 &&
|
|
|
|
expression.callee.type === "MemberExpression" &&
|
|
|
|
expression.callee.object.type === "Identifier" &&
|
|
|
|
expression.callee.object.name === "require" &&
|
|
|
|
expression.callee.property.type === "Identifier" &&
|
2012-04-05 14:59:01 +02:00
|
|
|
expression.callee.property.name === "context") {
|
2012-07-04 11:50:20 +02:00
|
|
|
// "require.context(...)"
|
2012-03-11 21:37:18 +01:00
|
|
|
var param = parseString(expression.arguments[0]);
|
|
|
|
context.contexts = context.contexts || [];
|
|
|
|
var newContext = {
|
|
|
|
name: param,
|
|
|
|
expressionRange: [expression.callee.range[0], expression.range[1]],
|
|
|
|
line: expression.loc.start.line,
|
2012-03-15 14:38:55 +01:00
|
|
|
column: expression.loc.start.column
|
2012-03-11 21:37:18 +01:00
|
|
|
};
|
|
|
|
context.contexts.push(newContext);
|
2012-03-14 16:33:46 +01:00
|
|
|
noCallee = true;
|
2012-03-11 21:37:18 +01:00
|
|
|
}
|
2012-08-06 21:43:57 +02:00
|
|
|
// CommonJS: require.resolve
|
2012-03-21 12:41:03 +01:00
|
|
|
if(context.overwrite.indexOf("require") === -1 &&
|
2012-07-04 11:50:20 +02:00
|
|
|
expression.callee && expression.arguments &&
|
|
|
|
expression.arguments.length == 1 &&
|
2012-03-21 12:41:03 +01:00
|
|
|
expression.callee.type === "MemberExpression" &&
|
|
|
|
expression.callee.object.type === "Identifier" &&
|
|
|
|
expression.callee.object.name === "require" &&
|
|
|
|
expression.callee.property.type === "Identifier" &&
|
2012-07-04 11:50:20 +02:00
|
|
|
expression.callee.property.name === "resolve") {
|
|
|
|
// "require.resolve(...)"
|
|
|
|
var param = parseCalculatedString(expression.arguments[0]);
|
|
|
|
if(param.conditional) {
|
|
|
|
context.requires = context.requires || [];
|
|
|
|
param.conditional.forEach(function(paramItem, idx) {
|
|
|
|
context.requires.push({
|
|
|
|
name: paramItem.value,
|
|
|
|
valueRange: paramItem.range,
|
|
|
|
deleteRange: idx === 0 ? expression.callee.range : undefined,
|
|
|
|
line: expression.loc.start.line,
|
|
|
|
column: expression.loc.start.column
|
|
|
|
});
|
|
|
|
});
|
|
|
|
} else {
|
|
|
|
// normal require
|
|
|
|
context.requires = context.requires || [];
|
|
|
|
context.requires.push({
|
|
|
|
name: param.value,
|
|
|
|
expressionRange: [expression.callee.range[0], expression.range[1]],
|
|
|
|
idOnly: true,
|
|
|
|
line: expression.loc.start.line,
|
|
|
|
column: expression.loc.start.column
|
|
|
|
});
|
|
|
|
}
|
2012-03-21 12:41:03 +01:00
|
|
|
noCallee = true;
|
|
|
|
}
|
2012-03-10 13:11:23 +01:00
|
|
|
|
2012-03-14 16:33:46 +01:00
|
|
|
if(expression.callee && !noCallee)
|
2012-03-10 13:11:23 +01:00
|
|
|
walkExpression(context, expression.callee);
|
|
|
|
if(expression.arguments)
|
|
|
|
walkExpressions(context, expression.arguments);
|
|
|
|
break;
|
|
|
|
case "MemberExpression":
|
2012-03-15 14:38:55 +01:00
|
|
|
if(expression.object.type === "Identifier" &&
|
|
|
|
expression.object.name === "module" &&
|
|
|
|
expression.property.type === "Identifier" &&
|
2012-08-22 23:04:26 +02:00
|
|
|
{exports:1, id:1, loaded:1}.hasOwnProperty(expression.property.name))
|
2012-03-15 14:38:55 +01:00
|
|
|
break;
|
2012-07-04 11:50:20 +02:00
|
|
|
if(expression.object.type === "Identifier" &&
|
|
|
|
expression.object.name === "require" &&
|
2012-08-07 20:52:48 +02:00
|
|
|
expression.property.type === "Identifier")
|
2012-07-04 11:50:20 +02:00
|
|
|
break;
|
2012-03-10 13:11:23 +01:00
|
|
|
walkExpression(context, expression.object);
|
|
|
|
if(expression.property.type !== "Identifier")
|
|
|
|
walkExpression(context, expression.property);
|
|
|
|
break;
|
2012-03-14 16:33:46 +01:00
|
|
|
case "Identifier":
|
2012-03-19 19:59:38 +01:00
|
|
|
if(context.overwrite.indexOf("require") === -1 &&
|
2012-03-14 16:33:46 +01:00
|
|
|
expression.name === "require") {
|
|
|
|
context.contexts = context.contexts || [];
|
|
|
|
var newContext = {
|
|
|
|
name: ".",
|
|
|
|
warn: "Identifier",
|
|
|
|
require: true,
|
|
|
|
calleeRange: [expression.range[0], expression.range[1]],
|
|
|
|
line: expression.loc.start.line,
|
2012-03-15 14:38:55 +01:00
|
|
|
column: expression.loc.start.column
|
2012-03-14 16:33:46 +01:00
|
|
|
};
|
|
|
|
context.contexts.push(newContext);
|
2012-03-19 19:59:38 +01:00
|
|
|
} else if(context.overwrite.indexOf(expression.name) === -1 &&
|
2012-04-05 14:59:01 +02:00
|
|
|
context.options.overwrites.hasOwnProperty(expression.name)) {
|
2012-03-15 14:38:55 +01:00
|
|
|
context.requires = context.requires || [];
|
2012-04-05 14:59:01 +02:00
|
|
|
var overwrite = context.options.overwrites[expression.name];
|
|
|
|
var append = undefined;
|
|
|
|
if(overwrite.indexOf("+") !== -1) {
|
|
|
|
append = overwrite.substr(overwrite.indexOf("+")+1);
|
|
|
|
overwrite = overwrite.substr(0, overwrite.indexOf("+"));
|
|
|
|
}
|
2012-03-15 14:38:55 +01:00
|
|
|
context.requires.push({
|
2012-04-05 14:59:01 +02:00
|
|
|
name: overwrite,
|
2012-03-15 14:38:55 +01:00
|
|
|
line: expression.loc.start.line,
|
2012-04-05 14:59:01 +02:00
|
|
|
column: expression.loc.start.column,
|
|
|
|
variable: expression.name,
|
|
|
|
append: append
|
2012-03-15 14:38:55 +01:00
|
|
|
});
|
2012-03-14 16:33:46 +01:00
|
|
|
}
|
|
|
|
break;
|
2012-03-10 13:11:23 +01:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2012-03-15 14:38:55 +01:00
|
|
|
function addOverwrites(context, params) {
|
|
|
|
var l = context.overwrite.length;
|
|
|
|
if(!params) return l;
|
|
|
|
params.forEach(function(param) {
|
|
|
|
if(context.ignoreOverride) {
|
|
|
|
context.ignoreOverride = false;
|
|
|
|
return;
|
|
|
|
}
|
2012-03-19 19:59:38 +01:00
|
|
|
if(param.type === "Identifier" &&
|
2012-04-05 14:59:01 +02:00
|
|
|
context.options.overwrites.hasOwnProperty(param.name))
|
2012-03-15 14:38:55 +01:00
|
|
|
context.overwrite.push(param.name);
|
|
|
|
});
|
|
|
|
return l;
|
|
|
|
}
|
|
|
|
|
2012-03-10 13:11:23 +01:00
|
|
|
function parseString(expression) {
|
|
|
|
switch(expression.type) {
|
|
|
|
case "BinaryExpression":
|
2012-03-11 21:37:18 +01:00
|
|
|
if(expression.operator == "+")
|
|
|
|
return parseString(expression.left) + parseString(expression.right);
|
|
|
|
break;
|
2012-03-10 13:11:23 +01:00
|
|
|
case "Literal":
|
2012-03-11 21:37:18 +01:00
|
|
|
return expression.value+"";
|
2012-03-10 13:11:23 +01:00
|
|
|
}
|
|
|
|
throw new Error(expression.type + " is not supported as parameter for require");
|
|
|
|
}
|
|
|
|
|
2012-03-11 21:37:18 +01:00
|
|
|
function parseCalculatedString(expression) {
|
|
|
|
switch(expression.type) {
|
|
|
|
case "BinaryExpression":
|
|
|
|
if(expression.operator == "+") {
|
|
|
|
var left = parseCalculatedString(expression.left);
|
|
|
|
var right = parseCalculatedString(expression.right);
|
|
|
|
if(left.code) {
|
|
|
|
return {range: left.range, value: left.value, code: true};
|
|
|
|
} else if(right.code) {
|
|
|
|
return {range: [left.range[0], right.range ? right.range[1] : left.range[1]], value: left.value + right.value, code: true};
|
|
|
|
} else {
|
|
|
|
return {range: [left.range[0], right.range[1]], value: left.value + right.value};
|
|
|
|
}
|
|
|
|
}
|
|
|
|
break;
|
2012-03-19 19:59:38 +01:00
|
|
|
case "ConditionalExpression":
|
|
|
|
var consequent = parseCalculatedString(expression.consequent);
|
|
|
|
var alternate = parseCalculatedString(expression.alternate);
|
|
|
|
var items = [];
|
|
|
|
if(consequent.conditional)
|
|
|
|
Array.prototype.push.apply(items, consequent.conditional);
|
|
|
|
else if(!consequent.code)
|
|
|
|
items.push(consequent);
|
|
|
|
else break;
|
|
|
|
if(alternate.conditional)
|
|
|
|
Array.prototype.push.apply(items, alternate.conditional);
|
|
|
|
else if(!alternate.code)
|
|
|
|
items.push(alternate);
|
|
|
|
else break;
|
|
|
|
return {value: "", code: true, conditional: items};
|
2012-03-11 21:37:18 +01:00
|
|
|
case "Literal":
|
|
|
|
return {range: expression.range, value: expression.value+""};
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
return {value: "", code: true};
|
|
|
|
}
|
|
|
|
|
2012-03-10 13:11:23 +01:00
|
|
|
function parseStringArray(expression) {
|
|
|
|
switch(expression.type) {
|
|
|
|
case "ArrayExpression":
|
|
|
|
var arr = [];
|
|
|
|
if(expression.elements)
|
|
|
|
expression.elements.forEach(function(expr) {
|
|
|
|
arr.push(parseString(expr));
|
|
|
|
});
|
|
|
|
return arr;
|
|
|
|
}
|
|
|
|
return [parseString(expression)];
|
|
|
|
}
|
|
|
|
|
2012-08-06 21:43:57 +02:00
|
|
|
function parseCalculatedStringArray(expression) {
|
|
|
|
switch(expression.type) {
|
|
|
|
case "ArrayExpression":
|
|
|
|
var arr = [];
|
|
|
|
if(expression.elements)
|
|
|
|
expression.elements.forEach(function(expr) {
|
|
|
|
arr.push(parseCalculatedString(expr));
|
|
|
|
});
|
|
|
|
return arr;
|
|
|
|
}
|
|
|
|
return [parseCalculatedString(expression)];
|
|
|
|
}
|
|
|
|
|
2012-03-10 13:11:23 +01:00
|
|
|
module.exports = function parse(source, options) {
|
2012-03-11 21:37:18 +01:00
|
|
|
var ast = esprima.parse(source, {range: true, loc: true, raw: true});
|
2012-03-10 13:11:23 +01:00
|
|
|
if(!ast || typeof ast != "object")
|
|
|
|
throw new Error("Source couldn't be parsed");
|
2012-03-15 14:38:55 +01:00
|
|
|
options = options || {};
|
|
|
|
options.overwrites = options.overwrites || {};
|
|
|
|
options.overwrites.require = true;
|
|
|
|
var context = {
|
|
|
|
options: options,
|
|
|
|
overwrite: []
|
|
|
|
};
|
2012-03-10 13:11:23 +01:00
|
|
|
walkStatements(context, ast.body);
|
2012-04-05 14:59:01 +02:00
|
|
|
delete context.options;
|
2012-03-10 13:11:23 +01:00
|
|
|
return context;
|
|
|
|
}
|