366 lines
10 KiB
JavaScript
366 lines
10 KiB
JavaScript
/*
|
|
MIT License http://www.opensource.org/licenses/mit-license.php
|
|
Author Tobias Koppers @sokra
|
|
*/
|
|
|
|
"use strict";
|
|
|
|
const RuntimeGlobals = require("../RuntimeGlobals");
|
|
const AMDDefineDependency = require("./AMDDefineDependency");
|
|
const AMDRequireArrayDependency = require("./AMDRequireArrayDependency");
|
|
const AMDRequireContextDependency = require("./AMDRequireContextDependency");
|
|
const AMDRequireItemDependency = require("./AMDRequireItemDependency");
|
|
const ConstDependency = require("./ConstDependency");
|
|
const ContextDependencyHelpers = require("./ContextDependencyHelpers");
|
|
const DynamicExports = require("./DynamicExports");
|
|
const LocalModuleDependency = require("./LocalModuleDependency");
|
|
const { addLocalModule, getLocalModule } = require("./LocalModulesHelpers");
|
|
|
|
/** @typedef {import("estree").CallExpression} CallExpression */
|
|
/** @typedef {import("../javascript/JavascriptParser")} JavascriptParser */
|
|
|
|
/**
|
|
* @param {CallExpression} expr expression
|
|
* @returns {boolean} true if it's a bound function expression
|
|
*/
|
|
const 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;
|
|
};
|
|
|
|
const isUnboundFunctionExpression = expr => {
|
|
if (expr.type === "FunctionExpression") return true;
|
|
if (expr.type === "ArrowFunctionExpression") return true;
|
|
return false;
|
|
};
|
|
|
|
const isCallable = expr => {
|
|
if (isUnboundFunctionExpression(expr)) return true;
|
|
if (isBoundFunctionExpression(expr)) return true;
|
|
return false;
|
|
};
|
|
|
|
class AMDDefineDependencyParserPlugin {
|
|
constructor(options) {
|
|
this.options = options;
|
|
}
|
|
|
|
/**
|
|
* @param {JavascriptParser} parser the parser
|
|
* @returns {void}
|
|
*/
|
|
apply(parser) {
|
|
parser.hooks.call
|
|
.for("define")
|
|
.tap(
|
|
"AMDDefineDependencyParserPlugin",
|
|
this.processCallDefine.bind(this, parser)
|
|
);
|
|
}
|
|
|
|
processArray(parser, expr, param, identifiers, namedModule) {
|
|
if (param.isArray()) {
|
|
param.items.forEach((param, idx) => {
|
|
if (
|
|
param.isString() &&
|
|
["require", "module", "exports"].includes(param.string)
|
|
)
|
|
identifiers[idx] = param.string;
|
|
const result = this.processItem(parser, expr, param, namedModule);
|
|
if (result === undefined) {
|
|
this.processContext(parser, 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 = RuntimeGlobals.require;
|
|
} else if (["exports", "module"].includes(request)) {
|
|
identifiers[idx] = request;
|
|
dep = request;
|
|
} else if ((localModule = getLocalModule(parser.state, request))) {
|
|
localModule.flagUsed();
|
|
dep = new LocalModuleDependency(localModule, undefined, false);
|
|
dep.loc = expr.loc;
|
|
parser.state.module.addPresentationalDependency(dep);
|
|
} else {
|
|
dep = this.newRequireItemDependency(request);
|
|
dep.loc = expr.loc;
|
|
dep.optional = !!parser.scope.inTry;
|
|
parser.state.current.addDependency(dep);
|
|
}
|
|
deps.push(dep);
|
|
});
|
|
const dep = this.newRequireArrayDependency(deps, param.range);
|
|
dep.loc = expr.loc;
|
|
dep.optional = !!parser.scope.inTry;
|
|
parser.state.module.addPresentationalDependency(dep);
|
|
return true;
|
|
}
|
|
}
|
|
processItem(parser, expr, param, namedModule) {
|
|
if (param.isConditional()) {
|
|
param.options.forEach(param => {
|
|
const result = this.processItem(parser, expr, param);
|
|
if (result === undefined) {
|
|
this.processContext(parser, expr, param);
|
|
}
|
|
});
|
|
return true;
|
|
} else if (param.isString()) {
|
|
let dep, localModule;
|
|
if (param.string === "require") {
|
|
dep = new ConstDependency(RuntimeGlobals.require, param.range, [
|
|
RuntimeGlobals.require
|
|
]);
|
|
} else if (param.string === "exports") {
|
|
dep = new ConstDependency("exports", param.range, [
|
|
RuntimeGlobals.exports
|
|
]);
|
|
} else if (param.string === "module") {
|
|
dep = new ConstDependency("module", param.range, [
|
|
RuntimeGlobals.module
|
|
]);
|
|
} else if (
|
|
(localModule = getLocalModule(parser.state, param.string, namedModule))
|
|
) {
|
|
localModule.flagUsed();
|
|
dep = new LocalModuleDependency(localModule, param.range, false);
|
|
} else {
|
|
dep = this.newRequireItemDependency(param.string, param.range);
|
|
dep.optional = !!parser.scope.inTry;
|
|
parser.state.current.addDependency(dep);
|
|
return true;
|
|
}
|
|
dep.loc = expr.loc;
|
|
parser.state.module.addPresentationalDependency(dep);
|
|
return true;
|
|
}
|
|
}
|
|
processContext(parser, expr, param) {
|
|
const dep = ContextDependencyHelpers.create(
|
|
AMDRequireContextDependency,
|
|
param.range,
|
|
param,
|
|
expr,
|
|
this.options,
|
|
{
|
|
category: "amd"
|
|
},
|
|
parser
|
|
);
|
|
if (!dep) return;
|
|
dep.loc = expr.loc;
|
|
dep.optional = !!parser.scope.inTry;
|
|
parser.state.current.addDependency(dep);
|
|
return true;
|
|
}
|
|
|
|
processCallDefine(parser, expr) {
|
|
let array, fn, obj, namedModule;
|
|
switch (expr.arguments.length) {
|
|
case 1:
|
|
if (isCallable(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 (isCallable(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 (isCallable(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 (isCallable(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;
|
|
}
|
|
DynamicExports.bailout(parser.state);
|
|
let fnParams = null;
|
|
let fnParamsOffset = 0;
|
|
if (fn) {
|
|
if (isUnboundFunctionExpression(fn)) {
|
|
fnParams = fn.params;
|
|
} else if (isBoundFunctionExpression(fn)) {
|
|
fnParams = fn.callee.object.params;
|
|
fnParamsOffset = fn.arguments.length - 1;
|
|
if (fnParamsOffset < 0) {
|
|
fnParamsOffset = 0;
|
|
}
|
|
}
|
|
}
|
|
let fnRenames = new Map();
|
|
if (array) {
|
|
const identifiers = {};
|
|
const param = parser.evaluateExpression(array);
|
|
const result = this.processArray(
|
|
parser,
|
|
expr,
|
|
param,
|
|
identifiers,
|
|
namedModule
|
|
);
|
|
if (!result) return;
|
|
if (fnParams) {
|
|
fnParams = fnParams.slice(fnParamsOffset).filter((param, idx) => {
|
|
if (identifiers[idx]) {
|
|
fnRenames.set(param.name, parser.getVariableInfo(identifiers[idx]));
|
|
return false;
|
|
}
|
|
return true;
|
|
});
|
|
}
|
|
} else {
|
|
const identifiers = ["require", "exports", "module"];
|
|
if (fnParams) {
|
|
fnParams = fnParams.slice(fnParamsOffset).filter((param, idx) => {
|
|
if (identifiers[idx]) {
|
|
fnRenames.set(param.name, parser.getVariableInfo(identifiers[idx]));
|
|
return false;
|
|
}
|
|
return true;
|
|
});
|
|
}
|
|
}
|
|
let inTry;
|
|
if (fn && isUnboundFunctionExpression(fn)) {
|
|
inTry = parser.scope.inTry;
|
|
parser.inScope(fnParams, () => {
|
|
for (const [name, varInfo] of fnRenames) {
|
|
parser.setVariable(name, varInfo);
|
|
}
|
|
parser.scope.inTry = inTry;
|
|
if (fn.body.type === "BlockStatement") {
|
|
parser.detectMode(fn.body.body);
|
|
const prev = parser.prevStatement;
|
|
parser.preWalkStatement(fn.body);
|
|
parser.prevStatement = prev;
|
|
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"].includes(i.name)
|
|
),
|
|
() => {
|
|
for (const [name, varInfo] of fnRenames) {
|
|
parser.setVariable(name, varInfo);
|
|
}
|
|
parser.scope.inTry = inTry;
|
|
if (fn.callee.object.body.type === "BlockStatement") {
|
|
parser.detectMode(fn.callee.object.body.body);
|
|
const prev = parser.prevStatement;
|
|
parser.preWalkStatement(fn.callee.object.body);
|
|
parser.prevStatement = prev;
|
|
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 = addLocalModule(parser.state, namedModule);
|
|
}
|
|
parser.state.module.addPresentationalDependency(dep);
|
|
return true;
|
|
}
|
|
|
|
newDefineDependency(
|
|
range,
|
|
arrayRange,
|
|
functionRange,
|
|
objectRange,
|
|
namedModule
|
|
) {
|
|
return new AMDDefineDependency(
|
|
range,
|
|
arrayRange,
|
|
functionRange,
|
|
objectRange,
|
|
namedModule
|
|
);
|
|
}
|
|
newRequireArrayDependency(depsArray, range) {
|
|
return new AMDRequireArrayDependency(depsArray, range);
|
|
}
|
|
newRequireItemDependency(request, range) {
|
|
return new AMDRequireItemDependency(request, range);
|
|
}
|
|
}
|
|
module.exports = AMDDefineDependencyParserPlugin;
|