You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
405 lines
12 KiB
405 lines
12 KiB
/*
|
|
MIT License http://www.opensource.org/licenses/mit-license.php
|
|
Author Tobias Koppers @sokra
|
|
*/
|
|
|
|
"use strict";
|
|
|
|
const Dependency = require("../Dependency");
|
|
const { UsageState } = require("../ExportsInfo");
|
|
const Template = require("../Template");
|
|
const { equals } = require("../util/ArrayHelpers");
|
|
const makeSerializable = require("../util/makeSerializable");
|
|
const propertyAccess = require("../util/propertyAccess");
|
|
const { handleDependencyBase } = require("./CommonJsDependencyHelpers");
|
|
const ModuleDependency = require("./ModuleDependency");
|
|
const processExportInfo = require("./processExportInfo");
|
|
|
|
/** @typedef {import("webpack-sources").ReplaceSource} ReplaceSource */
|
|
/** @typedef {import("../Dependency").ExportsSpec} ExportsSpec */
|
|
/** @typedef {import("../Dependency").ReferencedExport} ReferencedExport */
|
|
/** @typedef {import("../Dependency").TRANSITIVE} TRANSITIVE */
|
|
/** @typedef {import("../DependencyTemplate").DependencyTemplateContext} DependencyTemplateContext */
|
|
/** @typedef {import("../ExportsInfo")} ExportsInfo */
|
|
/** @typedef {import("../ExportsInfo").ExportInfo} ExportInfo */
|
|
/** @typedef {import("../Module")} Module */
|
|
/** @typedef {import("../ModuleGraph")} ModuleGraph */
|
|
/** @typedef {import("../javascript/JavascriptParser").Range} Range */
|
|
/** @typedef {import("../serialization/ObjectMiddleware").ObjectDeserializerContext} ObjectDeserializerContext */
|
|
/** @typedef {import("../serialization/ObjectMiddleware").ObjectSerializerContext} ObjectSerializerContext */
|
|
/** @typedef {import("../util/runtime").RuntimeSpec} RuntimeSpec */
|
|
/** @typedef {import("./CommonJsDependencyHelpers").CommonJSDependencyBaseKeywords} CommonJSDependencyBaseKeywords */
|
|
|
|
const idsSymbol = Symbol("CommonJsExportRequireDependency.ids");
|
|
|
|
const EMPTY_OBJECT = {};
|
|
|
|
class CommonJsExportRequireDependency extends ModuleDependency {
|
|
/**
|
|
* @param {Range} range range
|
|
* @param {Range | null} valueRange value range
|
|
* @param {CommonJSDependencyBaseKeywords} base base
|
|
* @param {string[]} names names
|
|
* @param {string} request request
|
|
* @param {string[]} ids ids
|
|
* @param {boolean} resultUsed true, when the result is used
|
|
*/
|
|
constructor(range, valueRange, base, names, request, ids, resultUsed) {
|
|
super(request);
|
|
this.range = range;
|
|
this.valueRange = valueRange;
|
|
this.base = base;
|
|
this.names = names;
|
|
this.ids = ids;
|
|
this.resultUsed = resultUsed;
|
|
this.asiSafe = undefined;
|
|
}
|
|
|
|
get type() {
|
|
return "cjs export require";
|
|
}
|
|
|
|
/**
|
|
* @returns {boolean | TRANSITIVE} true, when changes to the referenced module could affect the referencing module; TRANSITIVE, when changes to the referenced module could affect referencing modules of the referencing module
|
|
*/
|
|
couldAffectReferencingModule() {
|
|
return Dependency.TRANSITIVE;
|
|
}
|
|
|
|
/**
|
|
* @param {ModuleGraph} moduleGraph the module graph
|
|
* @returns {string[]} the imported id
|
|
*/
|
|
getIds(moduleGraph) {
|
|
return (
|
|
/** @type {TODO} */ (moduleGraph.getMeta(this))[idsSymbol] || this.ids
|
|
);
|
|
}
|
|
|
|
/**
|
|
* @param {ModuleGraph} moduleGraph the module graph
|
|
* @param {string[]} ids the imported ids
|
|
* @returns {void}
|
|
*/
|
|
setIds(moduleGraph, ids) {
|
|
/** @type {TODO} */ (moduleGraph.getMeta(this))[idsSymbol] = ids;
|
|
}
|
|
|
|
/**
|
|
* Returns list of exports referenced by this dependency
|
|
* @param {ModuleGraph} moduleGraph module graph
|
|
* @param {RuntimeSpec} runtime the runtime for which the module is analysed
|
|
* @returns {(string[] | ReferencedExport)[]} referenced exports
|
|
*/
|
|
getReferencedExports(moduleGraph, runtime) {
|
|
const ids = this.getIds(moduleGraph);
|
|
const getFullResult = () => {
|
|
if (ids.length === 0) {
|
|
return Dependency.EXPORTS_OBJECT_REFERENCED;
|
|
}
|
|
return [
|
|
{
|
|
name: ids,
|
|
canMangle: false
|
|
}
|
|
];
|
|
};
|
|
if (this.resultUsed) return getFullResult();
|
|
/** @type {ExportsInfo | undefined} */
|
|
let exportsInfo = moduleGraph.getExportsInfo(
|
|
/** @type {Module} */ (moduleGraph.getParentModule(this))
|
|
);
|
|
for (const name of this.names) {
|
|
const exportInfo = /** @type {ExportInfo} */ (
|
|
exportsInfo.getReadOnlyExportInfo(name)
|
|
);
|
|
const used = exportInfo.getUsed(runtime);
|
|
if (used === UsageState.Unused) return Dependency.NO_EXPORTS_REFERENCED;
|
|
if (used !== UsageState.OnlyPropertiesUsed) return getFullResult();
|
|
exportsInfo = exportInfo.exportsInfo;
|
|
if (!exportsInfo) return getFullResult();
|
|
}
|
|
if (exportsInfo.otherExportsInfo.getUsed(runtime) !== UsageState.Unused) {
|
|
return getFullResult();
|
|
}
|
|
/** @type {string[][]} */
|
|
const referencedExports = [];
|
|
for (const exportInfo of exportsInfo.orderedExports) {
|
|
processExportInfo(
|
|
runtime,
|
|
referencedExports,
|
|
ids.concat(exportInfo.name),
|
|
exportInfo,
|
|
false
|
|
);
|
|
}
|
|
return referencedExports.map(name => ({
|
|
name,
|
|
canMangle: false
|
|
}));
|
|
}
|
|
|
|
/**
|
|
* Returns the exported names
|
|
* @param {ModuleGraph} moduleGraph module graph
|
|
* @returns {ExportsSpec | undefined} export names
|
|
*/
|
|
getExports(moduleGraph) {
|
|
if (this.names.length === 1) {
|
|
const ids = this.getIds(moduleGraph);
|
|
const name = this.names[0];
|
|
const from = moduleGraph.getConnection(this);
|
|
if (!from) return;
|
|
return {
|
|
exports: [
|
|
{
|
|
name,
|
|
from,
|
|
export: ids.length === 0 ? null : ids,
|
|
// we can't mangle names that are in an empty object
|
|
// because one could access the prototype property
|
|
// when export isn't set yet
|
|
canMangle: !(name in EMPTY_OBJECT) && false
|
|
}
|
|
],
|
|
dependencies: [from.module]
|
|
};
|
|
} else if (this.names.length > 0) {
|
|
const name = this.names[0];
|
|
return {
|
|
exports: [
|
|
{
|
|
name,
|
|
// we can't mangle names that are in an empty object
|
|
// because one could access the prototype property
|
|
// when export isn't set yet
|
|
canMangle: !(name in EMPTY_OBJECT) && false
|
|
}
|
|
],
|
|
dependencies: undefined
|
|
};
|
|
}
|
|
const from = moduleGraph.getConnection(this);
|
|
if (!from) return;
|
|
const reexportInfo = this.getStarReexports(
|
|
moduleGraph,
|
|
undefined,
|
|
from.module
|
|
);
|
|
const ids = this.getIds(moduleGraph);
|
|
if (reexportInfo) {
|
|
return {
|
|
exports: Array.from(
|
|
/** @type {TODO} */ (reexportInfo).exports,
|
|
name => ({
|
|
name,
|
|
from,
|
|
export: ids.concat(name),
|
|
canMangle: !(name in EMPTY_OBJECT) && false
|
|
})
|
|
),
|
|
// TODO handle deep reexports
|
|
dependencies: [from.module]
|
|
};
|
|
}
|
|
return {
|
|
exports: true,
|
|
from: ids.length === 0 ? from : undefined,
|
|
canMangle: false,
|
|
dependencies: [from.module]
|
|
};
|
|
}
|
|
|
|
/**
|
|
* @param {ModuleGraph} moduleGraph the module graph
|
|
* @param {RuntimeSpec} runtime the runtime
|
|
* @param {Module} importedModule the imported module (optional)
|
|
* @returns {{exports?: Set<string>, checked?: Set<string>} | undefined} information
|
|
*/
|
|
getStarReexports(
|
|
moduleGraph,
|
|
runtime,
|
|
importedModule = /** @type {Module} */ (moduleGraph.getModule(this))
|
|
) {
|
|
/** @type {ExportsInfo | undefined} */
|
|
let importedExportsInfo = moduleGraph.getExportsInfo(importedModule);
|
|
const ids = this.getIds(moduleGraph);
|
|
if (ids.length > 0)
|
|
importedExportsInfo = importedExportsInfo.getNestedExportsInfo(ids);
|
|
/** @type {ExportsInfo | undefined} */
|
|
let exportsInfo = moduleGraph.getExportsInfo(
|
|
/** @type {Module} */ (moduleGraph.getParentModule(this))
|
|
);
|
|
if (this.names.length > 0)
|
|
exportsInfo = exportsInfo.getNestedExportsInfo(this.names);
|
|
|
|
const noExtraExports =
|
|
importedExportsInfo &&
|
|
importedExportsInfo.otherExportsInfo.provided === false;
|
|
const noExtraImports =
|
|
exportsInfo &&
|
|
exportsInfo.otherExportsInfo.getUsed(runtime) === UsageState.Unused;
|
|
|
|
if (!noExtraExports && !noExtraImports) {
|
|
return;
|
|
}
|
|
|
|
const isNamespaceImport =
|
|
importedModule.getExportsType(moduleGraph, false) === "namespace";
|
|
|
|
/** @type {Set<string>} */
|
|
const exports = new Set();
|
|
/** @type {Set<string>} */
|
|
const checked = new Set();
|
|
|
|
if (noExtraImports) {
|
|
for (const exportInfo of /** @type {ExportsInfo} */ (exportsInfo)
|
|
.orderedExports) {
|
|
const name = exportInfo.name;
|
|
if (exportInfo.getUsed(runtime) === UsageState.Unused) continue;
|
|
if (name === "__esModule" && isNamespaceImport) {
|
|
exports.add(name);
|
|
} else if (importedExportsInfo) {
|
|
const importedExportInfo =
|
|
importedExportsInfo.getReadOnlyExportInfo(name);
|
|
if (importedExportInfo.provided === false) continue;
|
|
exports.add(name);
|
|
if (importedExportInfo.provided === true) continue;
|
|
checked.add(name);
|
|
} else {
|
|
exports.add(name);
|
|
checked.add(name);
|
|
}
|
|
}
|
|
} else if (noExtraExports) {
|
|
for (const importedExportInfo of /** @type {ExportsInfo} */ (
|
|
importedExportsInfo
|
|
).orderedExports) {
|
|
const name = importedExportInfo.name;
|
|
if (importedExportInfo.provided === false) continue;
|
|
if (exportsInfo) {
|
|
const exportInfo = exportsInfo.getReadOnlyExportInfo(name);
|
|
if (exportInfo.getUsed(runtime) === UsageState.Unused) continue;
|
|
}
|
|
exports.add(name);
|
|
if (importedExportInfo.provided === true) continue;
|
|
checked.add(name);
|
|
}
|
|
if (isNamespaceImport) {
|
|
exports.add("__esModule");
|
|
checked.delete("__esModule");
|
|
}
|
|
}
|
|
|
|
return { exports, checked };
|
|
}
|
|
|
|
/**
|
|
* @param {ObjectSerializerContext} context context
|
|
*/
|
|
serialize(context) {
|
|
const { write } = context;
|
|
write(this.asiSafe);
|
|
write(this.range);
|
|
write(this.valueRange);
|
|
write(this.base);
|
|
write(this.names);
|
|
write(this.ids);
|
|
write(this.resultUsed);
|
|
super.serialize(context);
|
|
}
|
|
|
|
/**
|
|
* @param {ObjectDeserializerContext} context context
|
|
*/
|
|
deserialize(context) {
|
|
const { read } = context;
|
|
this.asiSafe = read();
|
|
this.range = read();
|
|
this.valueRange = read();
|
|
this.base = read();
|
|
this.names = read();
|
|
this.ids = read();
|
|
this.resultUsed = read();
|
|
super.deserialize(context);
|
|
}
|
|
}
|
|
|
|
makeSerializable(
|
|
CommonJsExportRequireDependency,
|
|
"webpack/lib/dependencies/CommonJsExportRequireDependency"
|
|
);
|
|
|
|
CommonJsExportRequireDependency.Template = class CommonJsExportRequireDependencyTemplate extends (
|
|
ModuleDependency.Template
|
|
) {
|
|
/**
|
|
* @param {Dependency} dependency the dependency for which the template should be applied
|
|
* @param {ReplaceSource} source the current replace source which can be modified
|
|
* @param {DependencyTemplateContext} templateContext the context object
|
|
* @returns {void}
|
|
*/
|
|
apply(
|
|
dependency,
|
|
source,
|
|
{
|
|
module,
|
|
runtimeTemplate,
|
|
chunkGraph,
|
|
moduleGraph,
|
|
runtimeRequirements,
|
|
runtime
|
|
}
|
|
) {
|
|
const dep = /** @type {CommonJsExportRequireDependency} */ (dependency);
|
|
const used = moduleGraph
|
|
.getExportsInfo(module)
|
|
.getUsedName(dep.names, runtime);
|
|
|
|
const [type, base] = handleDependencyBase(
|
|
dep.base,
|
|
module,
|
|
runtimeRequirements
|
|
);
|
|
|
|
const importedModule = moduleGraph.getModule(dep);
|
|
let requireExpr = runtimeTemplate.moduleExports({
|
|
module: importedModule,
|
|
chunkGraph,
|
|
request: dep.request,
|
|
weak: dep.weak,
|
|
runtimeRequirements
|
|
});
|
|
if (importedModule) {
|
|
const ids = dep.getIds(moduleGraph);
|
|
const usedImported = moduleGraph
|
|
.getExportsInfo(importedModule)
|
|
.getUsedName(ids, runtime);
|
|
if (usedImported) {
|
|
const comment = equals(usedImported, ids)
|
|
? ""
|
|
: `${Template.toNormalComment(propertyAccess(ids))} `;
|
|
requireExpr += `${comment}${propertyAccess(usedImported)}`;
|
|
}
|
|
}
|
|
|
|
switch (type) {
|
|
case "expression":
|
|
source.replace(
|
|
dep.range[0],
|
|
dep.range[1] - 1,
|
|
used
|
|
? `${base}${propertyAccess(used)} = ${requireExpr}`
|
|
: `/* unused reexport */ ${requireExpr}`
|
|
);
|
|
return;
|
|
case "Object.defineProperty":
|
|
throw new Error("TODO");
|
|
default:
|
|
throw new Error("Unexpected type");
|
|
}
|
|
}
|
|
};
|
|
|
|
module.exports = CommonJsExportRequireDependency;
|