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- /*
- MIT License http://www.opensource.org/licenses/mit-license.php
- Author Tobias Koppers @sokra
- */
- "use strict";
-
- const AMDRequireItemDependency = require("./AMDRequireItemDependency");
- const AMDRequireContextDependency = require("./AMDRequireContextDependency");
- const ConstDependency = require("./ConstDependency");
- const AMDDefineDependency = require("./AMDDefineDependency");
- const AMDRequireArrayDependency = require("./AMDRequireArrayDependency");
- const LocalModuleDependency = require("./LocalModuleDependency");
- const ContextDependencyHelpers = require("./ContextDependencyHelpers");
- const LocalModulesHelpers = require("./LocalModulesHelpers");
-
- function isBoundFunctionExpression(expr) {
- if(expr.type !== "CallExpression") return false;
- if(expr.callee.type !== "MemberExpression") return false;
- if(expr.callee.computed) return false;
- if(expr.callee.object.type !== "FunctionExpression") return false;
- if(expr.callee.property.type !== "Identifier") return false;
- if(expr.callee.property.name !== "bind") return false;
- return true;
- }
-
- class AMDDefineDependencyParserPlugin {
- constructor(options) {
- this.options = options;
- }
-
- newDefineDependency(range, arrayRange, functionRange, objectRange, namedModule) {
- return new AMDDefineDependency(range, arrayRange, functionRange, objectRange, namedModule);
- }
-
- apply(parser) {
- const options = this.options;
- parser.plugin("call define", (expr) => {
- let array, fn, obj, namedModule;
- switch(expr.arguments.length) {
- case 1:
- if(expr.arguments[0].type === "FunctionExpression" || isBoundFunctionExpression(expr.arguments[0])) {
- // define(f() {...})
- fn = expr.arguments[0];
- } else if(expr.arguments[0].type === "ObjectExpression") {
- // define({...})
- obj = expr.arguments[0];
- } else {
- // define(expr)
- // unclear if function or object
- obj = fn = expr.arguments[0];
- }
- break;
- case 2:
- if(expr.arguments[0].type === "Literal") {
- namedModule = expr.arguments[0].value;
- // define("...", ...)
- if(expr.arguments[1].type === "FunctionExpression" || isBoundFunctionExpression(expr.arguments[1])) {
- // define("...", f() {...})
- fn = expr.arguments[1];
- } else if(expr.arguments[1].type === "ObjectExpression") {
- // define("...", {...})
- obj = expr.arguments[1];
- } else {
- // define("...", expr)
- // unclear if function or object
- obj = fn = expr.arguments[1];
- }
- } else {
- array = expr.arguments[0];
- if(expr.arguments[1].type === "FunctionExpression" || isBoundFunctionExpression(expr.arguments[1])) {
- // define([...], f() {})
- fn = expr.arguments[1];
- } else if(expr.arguments[1].type === "ObjectExpression") {
- // define([...], {...})
- obj = expr.arguments[1];
- } else {
- // define([...], expr)
- // unclear if function or object
- obj = fn = expr.arguments[1];
- }
- }
- break;
- case 3:
- // define("...", [...], f() {...})
- namedModule = expr.arguments[0].value;
- array = expr.arguments[1];
- if(expr.arguments[2].type === "FunctionExpression" || isBoundFunctionExpression(expr.arguments[2])) {
- // define("...", [...], f() {})
- fn = expr.arguments[2];
- } else if(expr.arguments[2].type === "ObjectExpression") {
- // define("...", [...], {...})
- obj = expr.arguments[2];
- } else {
- // define("...", [...], expr)
- // unclear if function or object
- obj = fn = expr.arguments[2];
- }
- break;
- default:
- return;
- }
- let fnParams = null;
- let fnParamsOffset = 0;
- if(fn) {
- if(fn.type === "FunctionExpression") fnParams = fn.params;
- else if(isBoundFunctionExpression(fn)) {
- fnParams = fn.callee.object.params;
- fnParamsOffset = fn.arguments.length - 1;
- if(fnParamsOffset < 0) fnParamsOffset = 0;
- }
- }
- let fnRenames = Object.create(parser.scope.renames);
- let identifiers;
- if(array) {
- identifiers = {};
- const param = parser.evaluateExpression(array);
- const result = parser.applyPluginsBailResult("call define:amd:array", expr, param, identifiers, namedModule);
- if(!result) return;
- if(fnParams) fnParams = fnParams.slice(fnParamsOffset).filter((param, idx) => {
- if(identifiers[idx]) {
- fnRenames["$" + param.name] = identifiers[idx];
- return false;
- }
- return true;
- });
- } else {
- identifiers = ["require", "exports", "module"];
- if(fnParams) fnParams = fnParams.slice(fnParamsOffset).filter((param, idx) => {
- if(identifiers[idx]) {
- fnRenames["$" + param.name] = identifiers[idx];
- return false;
- }
- return true;
- });
- }
- let inTry;
- if(fn && fn.type === "FunctionExpression") {
- inTry = parser.scope.inTry;
- parser.inScope(fnParams, () => {
- parser.scope.renames = fnRenames;
- parser.scope.inTry = inTry;
- if(fn.body.type === "BlockStatement")
- parser.walkStatement(fn.body);
- else
- parser.walkExpression(fn.body);
- });
- } else if(fn && isBoundFunctionExpression(fn)) {
- inTry = parser.scope.inTry;
- parser.inScope(fn.callee.object.params.filter((i) => ["require", "module", "exports"].indexOf(i.name) < 0), () => {
- parser.scope.renames = fnRenames;
- parser.scope.inTry = inTry;
- if(fn.callee.object.body.type === "BlockStatement")
- parser.walkStatement(fn.callee.object.body);
- else
- parser.walkExpression(fn.callee.object.body);
- });
- if(fn.arguments)
- parser.walkExpressions(fn.arguments);
- } else if(fn || obj) {
- parser.walkExpression(fn || obj);
- }
-
- const dep = this.newDefineDependency(
- expr.range,
- array ? array.range : null,
- fn ? fn.range : null,
- obj ? obj.range : null,
- namedModule ? namedModule : null
- );
- dep.loc = expr.loc;
- if(namedModule) {
- dep.localModule = LocalModulesHelpers.addLocalModule(parser.state, namedModule);
- }
- parser.state.current.addDependency(dep);
- return true;
- });
- parser.plugin("call define:amd:array", (expr, param, identifiers, namedModule) => {
- if(param.isArray()) {
- param.items.forEach((param, idx) => {
- if(param.isString() && ["require", "module", "exports"].indexOf(param.string) >= 0)
- identifiers[idx] = param.string;
- const result = parser.applyPluginsBailResult("call define:amd:item", expr, param, namedModule);
- if(result === undefined) {
- parser.applyPluginsBailResult("call define:amd:context", expr, param);
- }
- });
- return true;
- } else if(param.isConstArray()) {
- const deps = [];
- param.array.forEach((request, idx) => {
- let dep;
- let localModule;
- if(request === "require") {
- identifiers[idx] = request;
- dep = "__webpack_require__";
- } else if(["exports", "module"].indexOf(request) >= 0) {
- identifiers[idx] = request;
- dep = request;
- } else if(localModule = LocalModulesHelpers.getLocalModule(parser.state, request)) { // eslint-disable-line no-cond-assign
- dep = new LocalModuleDependency(localModule);
- dep.loc = expr.loc;
- parser.state.current.addDependency(dep);
- } else {
- dep = new AMDRequireItemDependency(request);
- dep.loc = expr.loc;
- dep.optional = !!parser.scope.inTry;
- parser.state.current.addDependency(dep);
- }
- deps.push(dep);
- });
- const dep = new AMDRequireArrayDependency(deps, param.range);
- dep.loc = expr.loc;
- dep.optional = !!parser.scope.inTry;
- parser.state.current.addDependency(dep);
- return true;
- }
- });
- parser.plugin("call define:amd:item", (expr, param, namedModule) => {
- if(param.isConditional()) {
- param.options.forEach((param) => {
- const result = parser.applyPluginsBailResult("call define:amd:item", expr, param);
- if(result === undefined) {
- parser.applyPluginsBailResult("call define:amd:context", expr, param);
- }
- });
- return true;
- } else if(param.isString()) {
- let dep, localModule;
- if(param.string === "require") {
- dep = new ConstDependency("__webpack_require__", param.range);
- } else if(["require", "exports", "module"].indexOf(param.string) >= 0) {
- dep = new ConstDependency(param.string, param.range);
- } else if(localModule = LocalModulesHelpers.getLocalModule(parser.state, param.string, namedModule)) { // eslint-disable-line no-cond-assign
- dep = new LocalModuleDependency(localModule, param.range);
- } else {
- dep = new AMDRequireItemDependency(param.string, param.range);
- }
- dep.loc = expr.loc;
- dep.optional = !!parser.scope.inTry;
- parser.state.current.addDependency(dep);
- return true;
- }
- });
- parser.plugin("call define:amd:context", (expr, param) => {
- const dep = ContextDependencyHelpers.create(AMDRequireContextDependency, param.range, param, expr, options);
- if(!dep) return;
- dep.loc = expr.loc;
- dep.optional = !!parser.scope.inTry;
- parser.state.current.addDependency(dep);
- return true;
- });
- }
- }
- module.exports = AMDDefineDependencyParserPlugin;
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