90 lines
3.5 KiB
JavaScript
90 lines
3.5 KiB
JavaScript
/*
|
|
MIT License http://www.opensource.org/licenses/mit-license.php
|
|
Author Tobias Koppers @sokra
|
|
*/
|
|
"use strict";
|
|
|
|
const CommonJsRequireDependency = require("./CommonJsRequireDependency");
|
|
const CommonJsRequireContextDependency = require("./CommonJsRequireContextDependency");
|
|
const RequireHeaderDependency = require("./RequireHeaderDependency");
|
|
const LocalModuleDependency = require("./LocalModuleDependency");
|
|
const ContextDependencyHelpers = require("./ContextDependencyHelpers");
|
|
const LocalModulesHelpers = require("./LocalModulesHelpers");
|
|
const ParserHelpers = require("../ParserHelpers");
|
|
|
|
class CommonJsRequireDependencyParserPlugin {
|
|
constructor(options) {
|
|
this.options = options;
|
|
}
|
|
|
|
apply(parser) {
|
|
const options = this.options;
|
|
parser.plugin("expression require.cache", ParserHelpers.toConstantDependency("__webpack_require__.c"));
|
|
parser.plugin("expression require", (expr) => {
|
|
const dep = new CommonJsRequireContextDependency(options.unknownContextRequest, options.unknownContextRecursive, options.unknownContextRegExp, expr.range);
|
|
dep.critical = options.unknownContextCritical && "require function is used in a way in which dependencies cannot be statically extracted";
|
|
dep.loc = expr.loc;
|
|
dep.optional = !!parser.scope.inTry;
|
|
parser.state.current.addDependency(dep);
|
|
return true;
|
|
});
|
|
parser.plugin("call require", (expr) => {
|
|
if(expr.arguments.length !== 1) return;
|
|
let localModule;
|
|
const param = parser.evaluateExpression(expr.arguments[0]);
|
|
if(param.isConditional()) {
|
|
let isExpression = false;
|
|
const prevLength = parser.state.current.dependencies.length;
|
|
const dep = new RequireHeaderDependency(expr.callee.range);
|
|
dep.loc = expr.loc;
|
|
parser.state.current.addDependency(dep);
|
|
param.options.forEach(function(param) {
|
|
const result = parser.applyPluginsBailResult("call require:commonjs:item", expr, param);
|
|
if(result === undefined) {
|
|
isExpression = true;
|
|
}
|
|
});
|
|
if(isExpression) {
|
|
parser.state.current.dependencies.length = prevLength;
|
|
} else {
|
|
return true;
|
|
}
|
|
}
|
|
if(param.isString() && (localModule = LocalModulesHelpers.getLocalModule(parser.state, param.string))) {
|
|
const dep = new LocalModuleDependency(localModule, expr.range);
|
|
dep.loc = expr.loc;
|
|
parser.state.current.addDependency(dep);
|
|
return true;
|
|
} else {
|
|
const result = parser.applyPluginsBailResult("call require:commonjs:item", expr, param);
|
|
if(result === undefined) {
|
|
parser.applyPluginsBailResult("call require:commonjs:context", expr, param);
|
|
} else {
|
|
const dep = new RequireHeaderDependency(expr.callee.range);
|
|
dep.loc = expr.loc;
|
|
parser.state.current.addDependency(dep);
|
|
}
|
|
return true;
|
|
}
|
|
});
|
|
parser.plugin("call require:commonjs:item", (expr, param) => {
|
|
if(param.isString()) {
|
|
const dep = new CommonJsRequireDependency(param.string, param.range);
|
|
dep.loc = expr.loc;
|
|
dep.optional = !!parser.scope.inTry;
|
|
parser.state.current.addDependency(dep);
|
|
return true;
|
|
}
|
|
});
|
|
parser.plugin("call require:commonjs:context", (expr, param) => {
|
|
const dep = ContextDependencyHelpers.create(CommonJsRequireContextDependency, expr.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 = CommonJsRequireDependencyParserPlugin;
|