mirror of https://github.com/webpack/webpack.git
916 lines
27 KiB
JavaScript
916 lines
27 KiB
JavaScript
/*
|
|
MIT License http://www.opensource.org/licenses/mit-license.php
|
|
Author Tobias Koppers @sokra
|
|
*/
|
|
|
|
"use strict";
|
|
|
|
const InitFragment = require("./InitFragment");
|
|
const RuntimeGlobals = require("./RuntimeGlobals");
|
|
const Template = require("./Template");
|
|
const { equals } = require("./util/ArrayHelpers");
|
|
const compileBooleanMatcher = require("./util/compileBooleanMatcher");
|
|
const propertyAccess = require("./util/propertyAccess");
|
|
const { forEachRuntime, subtractRuntime } = require("./util/runtime");
|
|
|
|
/** @typedef {import("../declarations/WebpackOptions").OutputNormalized} OutputOptions */
|
|
/** @typedef {import("./AsyncDependenciesBlock")} AsyncDependenciesBlock */
|
|
/** @typedef {import("./ChunkGraph")} ChunkGraph */
|
|
/** @typedef {import("./Compilation")} Compilation */
|
|
/** @typedef {import("./Dependency")} Dependency */
|
|
/** @typedef {import("./Module")} Module */
|
|
/** @typedef {import("./ModuleGraph")} ModuleGraph */
|
|
/** @typedef {import("./RequestShortener")} RequestShortener */
|
|
/** @typedef {import("./util/runtime").RuntimeSpec} RuntimeSpec */
|
|
|
|
/**
|
|
* @param {Module} module the module
|
|
* @param {ChunkGraph} chunkGraph the chunk graph
|
|
* @returns {string} error message
|
|
*/
|
|
const noModuleIdErrorMessage = (module, chunkGraph) => {
|
|
return `Module ${module.identifier()} has no id assigned.
|
|
This should not happen.
|
|
It's in these chunks: ${
|
|
Array.from(
|
|
chunkGraph.getModuleChunksIterable(module),
|
|
c => c.name || c.id || c.debugId
|
|
).join(", ") || "none"
|
|
} (If module is in no chunk this indicates a bug in some chunk/module optimization logic)
|
|
Module has these incoming connections: ${Array.from(
|
|
chunkGraph.moduleGraph.getIncomingConnections(module),
|
|
connection =>
|
|
`\n - ${
|
|
connection.originModule && connection.originModule.identifier()
|
|
} ${connection.dependency && connection.dependency.type} ${
|
|
(connection.explanations &&
|
|
Array.from(connection.explanations).join(", ")) ||
|
|
""
|
|
}`
|
|
).join("")}`;
|
|
};
|
|
|
|
class RuntimeTemplate {
|
|
/**
|
|
* @param {Compilation} compilation the compilation
|
|
* @param {OutputOptions} outputOptions the compilation output options
|
|
* @param {RequestShortener} requestShortener the request shortener
|
|
*/
|
|
constructor(compilation, outputOptions, requestShortener) {
|
|
this.compilation = compilation;
|
|
this.outputOptions = outputOptions || {};
|
|
this.requestShortener = requestShortener;
|
|
}
|
|
|
|
isIIFE() {
|
|
return this.outputOptions.iife;
|
|
}
|
|
|
|
isModule() {
|
|
return this.outputOptions.module;
|
|
}
|
|
|
|
supportsConst() {
|
|
return this.outputOptions.environment.const;
|
|
}
|
|
|
|
supportsArrowFunction() {
|
|
return this.outputOptions.environment.arrowFunction;
|
|
}
|
|
|
|
supportsForOf() {
|
|
return this.outputOptions.environment.forOf;
|
|
}
|
|
|
|
supportsDestructuring() {
|
|
return this.outputOptions.environment.destructuring;
|
|
}
|
|
|
|
supportsBigIntLiteral() {
|
|
return this.outputOptions.environment.bigIntLiteral;
|
|
}
|
|
|
|
supportsDynamicImport() {
|
|
return this.outputOptions.environment.dynamicImport;
|
|
}
|
|
|
|
supportsEcmaScriptModuleSyntax() {
|
|
return this.outputOptions.environment.module;
|
|
}
|
|
|
|
supportTemplateLiteral() {
|
|
// TODO
|
|
return false;
|
|
}
|
|
|
|
returningFunction(returnValue, args = "") {
|
|
return this.supportsArrowFunction()
|
|
? `(${args}) => (${returnValue})`
|
|
: `function(${args}) { return ${returnValue}; }`;
|
|
}
|
|
|
|
basicFunction(args, body) {
|
|
return this.supportsArrowFunction()
|
|
? `(${args}) => {\n${Template.indent(body)}\n}`
|
|
: `function(${args}) {\n${Template.indent(body)}\n}`;
|
|
}
|
|
|
|
emptyFunction() {
|
|
return this.supportsArrowFunction() ? "x => {}" : "function() {}";
|
|
}
|
|
|
|
destructureArray(items, value) {
|
|
return this.supportsDestructuring()
|
|
? `var [${items.join(", ")}] = ${value};`
|
|
: Template.asString(
|
|
items.map((item, i) => `var ${item} = ${value}[${i}];`)
|
|
);
|
|
}
|
|
|
|
iife(args, body) {
|
|
return `(${this.basicFunction(args, body)})()`;
|
|
}
|
|
|
|
forEach(variable, array, body) {
|
|
return this.supportsForOf()
|
|
? `for(const ${variable} of ${array}) {\n${Template.indent(body)}\n}`
|
|
: `${array}.forEach(function(${variable}) {\n${Template.indent(
|
|
body
|
|
)}\n});`;
|
|
}
|
|
|
|
/**
|
|
* Add a comment
|
|
* @param {object} options Information content of the comment
|
|
* @param {string=} options.request request string used originally
|
|
* @param {string=} options.chunkName name of the chunk referenced
|
|
* @param {string=} options.chunkReason reason information of the chunk
|
|
* @param {string=} options.message additional message
|
|
* @param {string=} options.exportName name of the export
|
|
* @returns {string} comment
|
|
*/
|
|
comment({ request, chunkName, chunkReason, message, exportName }) {
|
|
let content;
|
|
if (this.outputOptions.pathinfo) {
|
|
content = [message, request, chunkName, chunkReason]
|
|
.filter(Boolean)
|
|
.map(item => this.requestShortener.shorten(item))
|
|
.join(" | ");
|
|
} else {
|
|
content = [message, chunkName, chunkReason]
|
|
.filter(Boolean)
|
|
.map(item => this.requestShortener.shorten(item))
|
|
.join(" | ");
|
|
}
|
|
if (!content) return "";
|
|
if (this.outputOptions.pathinfo) {
|
|
return Template.toComment(content) + " ";
|
|
} else {
|
|
return Template.toNormalComment(content) + " ";
|
|
}
|
|
}
|
|
|
|
/**
|
|
* @param {object} options generation options
|
|
* @param {string=} options.request request string used originally
|
|
* @returns {string} generated error block
|
|
*/
|
|
throwMissingModuleErrorBlock({ request }) {
|
|
const err = `Cannot find module '${request}'`;
|
|
return `var e = new Error(${JSON.stringify(
|
|
err
|
|
)}); e.code = 'MODULE_NOT_FOUND'; throw e;`;
|
|
}
|
|
|
|
/**
|
|
* @param {object} options generation options
|
|
* @param {string=} options.request request string used originally
|
|
* @returns {string} generated error function
|
|
*/
|
|
throwMissingModuleErrorFunction({ request }) {
|
|
return `function webpackMissingModule() { ${this.throwMissingModuleErrorBlock(
|
|
{ request }
|
|
)} }`;
|
|
}
|
|
|
|
/**
|
|
* @param {object} options generation options
|
|
* @param {string=} options.request request string used originally
|
|
* @returns {string} generated error IIFE
|
|
*/
|
|
missingModule({ request }) {
|
|
return `Object(${this.throwMissingModuleErrorFunction({ request })}())`;
|
|
}
|
|
|
|
/**
|
|
* @param {object} options generation options
|
|
* @param {string=} options.request request string used originally
|
|
* @returns {string} generated error statement
|
|
*/
|
|
missingModuleStatement({ request }) {
|
|
return `${this.missingModule({ request })};\n`;
|
|
}
|
|
|
|
/**
|
|
* @param {object} options generation options
|
|
* @param {string=} options.request request string used originally
|
|
* @returns {string} generated error code
|
|
*/
|
|
missingModulePromise({ request }) {
|
|
return `Promise.resolve().then(${this.throwMissingModuleErrorFunction({
|
|
request
|
|
})})`;
|
|
}
|
|
|
|
/**
|
|
* @param {Object} options options object
|
|
* @param {ChunkGraph} options.chunkGraph the chunk graph
|
|
* @param {Module} options.module the module
|
|
* @param {string} options.request the request that should be printed as comment
|
|
* @param {string=} options.idExpr expression to use as id expression
|
|
* @param {"expression" | "promise" | "statements"} options.type which kind of code should be returned
|
|
* @returns {string} the code
|
|
*/
|
|
weakError({ module, chunkGraph, request, idExpr, type }) {
|
|
const moduleId = chunkGraph.getModuleId(module);
|
|
const errorMessage =
|
|
moduleId === null
|
|
? JSON.stringify("Module is not available (weak dependency)")
|
|
: idExpr
|
|
? `"Module '" + ${idExpr} + "' is not available (weak dependency)"`
|
|
: JSON.stringify(
|
|
`Module '${moduleId}' is not available (weak dependency)`
|
|
);
|
|
const comment = request ? Template.toNormalComment(request) + " " : "";
|
|
const errorStatements =
|
|
`var e = new Error(${errorMessage}); ` +
|
|
comment +
|
|
"e.code = 'MODULE_NOT_FOUND'; throw e;";
|
|
switch (type) {
|
|
case "statements":
|
|
return errorStatements;
|
|
case "promise":
|
|
return `Promise.resolve().then(${this.basicFunction(
|
|
"",
|
|
errorStatements
|
|
)})`;
|
|
case "expression":
|
|
return this.iife("", errorStatements);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* @param {Object} options options object
|
|
* @param {Module} options.module the module
|
|
* @param {ChunkGraph} options.chunkGraph the chunk graph
|
|
* @param {string} options.request the request that should be printed as comment
|
|
* @param {boolean=} options.weak if the dependency is weak (will create a nice error message)
|
|
* @returns {string} the expression
|
|
*/
|
|
moduleId({ module, chunkGraph, request, weak }) {
|
|
if (!module) {
|
|
return this.missingModule({
|
|
request
|
|
});
|
|
}
|
|
const moduleId = chunkGraph.getModuleId(module);
|
|
if (moduleId === null) {
|
|
if (weak) {
|
|
return "null /* weak dependency, without id */";
|
|
}
|
|
throw new Error(
|
|
`RuntimeTemplate.moduleId(): ${noModuleIdErrorMessage(
|
|
module,
|
|
chunkGraph
|
|
)}`
|
|
);
|
|
}
|
|
return `${this.comment({ request })}${JSON.stringify(moduleId)}`;
|
|
}
|
|
|
|
/**
|
|
* @param {Object} options options object
|
|
* @param {Module} options.module the module
|
|
* @param {ChunkGraph} options.chunkGraph the chunk graph
|
|
* @param {string} options.request the request that should be printed as comment
|
|
* @param {boolean=} options.weak if the dependency is weak (will create a nice error message)
|
|
* @param {Set<string>} options.runtimeRequirements if set, will be filled with runtime requirements
|
|
* @returns {string} the expression
|
|
*/
|
|
moduleRaw({ module, chunkGraph, request, weak, runtimeRequirements }) {
|
|
if (!module) {
|
|
return this.missingModule({
|
|
request
|
|
});
|
|
}
|
|
const moduleId = chunkGraph.getModuleId(module);
|
|
if (moduleId === null) {
|
|
if (weak) {
|
|
// only weak referenced modules don't get an id
|
|
// we can always emit an error emitting code here
|
|
return this.weakError({
|
|
module,
|
|
chunkGraph,
|
|
request,
|
|
type: "expression"
|
|
});
|
|
}
|
|
throw new Error(
|
|
`RuntimeTemplate.moduleId(): ${noModuleIdErrorMessage(
|
|
module,
|
|
chunkGraph
|
|
)}`
|
|
);
|
|
}
|
|
runtimeRequirements.add(RuntimeGlobals.require);
|
|
return `__webpack_require__(${this.moduleId({
|
|
module,
|
|
chunkGraph,
|
|
request,
|
|
weak
|
|
})})`;
|
|
}
|
|
|
|
/**
|
|
* @param {Object} options options object
|
|
* @param {Module} options.module the module
|
|
* @param {ChunkGraph} options.chunkGraph the chunk graph
|
|
* @param {string} options.request the request that should be printed as comment
|
|
* @param {boolean=} options.weak if the dependency is weak (will create a nice error message)
|
|
* @param {Set<string>} options.runtimeRequirements if set, will be filled with runtime requirements
|
|
* @returns {string} the expression
|
|
*/
|
|
moduleExports({ module, chunkGraph, request, weak, runtimeRequirements }) {
|
|
return this.moduleRaw({
|
|
module,
|
|
chunkGraph,
|
|
request,
|
|
weak,
|
|
runtimeRequirements
|
|
});
|
|
}
|
|
|
|
/**
|
|
* @param {Object} options options object
|
|
* @param {Module} options.module the module
|
|
* @param {ChunkGraph} options.chunkGraph the chunk graph
|
|
* @param {string} options.request the request that should be printed as comment
|
|
* @param {boolean=} options.strict if the current module is in strict esm mode
|
|
* @param {boolean=} options.weak if the dependency is weak (will create a nice error message)
|
|
* @param {Set<string>} options.runtimeRequirements if set, will be filled with runtime requirements
|
|
* @returns {string} the expression
|
|
*/
|
|
moduleNamespace({
|
|
module,
|
|
chunkGraph,
|
|
request,
|
|
strict,
|
|
weak,
|
|
runtimeRequirements
|
|
}) {
|
|
if (!module) {
|
|
return this.missingModule({
|
|
request
|
|
});
|
|
}
|
|
if (chunkGraph.getModuleId(module) === null) {
|
|
if (weak) {
|
|
// only weak referenced modules don't get an id
|
|
// we can always emit an error emitting code here
|
|
return this.weakError({
|
|
module,
|
|
chunkGraph,
|
|
request,
|
|
type: "expression"
|
|
});
|
|
}
|
|
throw new Error(
|
|
`RuntimeTemplate.moduleNamespace(): ${noModuleIdErrorMessage(
|
|
module,
|
|
chunkGraph
|
|
)}`
|
|
);
|
|
}
|
|
const moduleId = this.moduleId({
|
|
module,
|
|
chunkGraph,
|
|
request,
|
|
weak
|
|
});
|
|
const exportsType = module.getExportsType(chunkGraph.moduleGraph, strict);
|
|
switch (exportsType) {
|
|
case "namespace":
|
|
return this.moduleRaw({
|
|
module,
|
|
chunkGraph,
|
|
request,
|
|
weak,
|
|
runtimeRequirements
|
|
});
|
|
case "default-with-named":
|
|
runtimeRequirements.add(RuntimeGlobals.createFakeNamespaceObject);
|
|
return `${RuntimeGlobals.createFakeNamespaceObject}(${moduleId}, 3)`;
|
|
case "default-only":
|
|
runtimeRequirements.add(RuntimeGlobals.createFakeNamespaceObject);
|
|
return `${RuntimeGlobals.createFakeNamespaceObject}(${moduleId}, 1)`;
|
|
case "dynamic":
|
|
runtimeRequirements.add(RuntimeGlobals.createFakeNamespaceObject);
|
|
return `${RuntimeGlobals.createFakeNamespaceObject}(${moduleId}, 7)`;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* @param {Object} options options object
|
|
* @param {ChunkGraph} options.chunkGraph the chunk graph
|
|
* @param {AsyncDependenciesBlock=} options.block the current dependencies block
|
|
* @param {Module} options.module the module
|
|
* @param {string} options.request the request that should be printed as comment
|
|
* @param {string} options.message a message for the comment
|
|
* @param {boolean=} options.strict if the current module is in strict esm mode
|
|
* @param {boolean=} options.weak if the dependency is weak (will create a nice error message)
|
|
* @param {Set<string>} options.runtimeRequirements if set, will be filled with runtime requirements
|
|
* @returns {string} the promise expression
|
|
*/
|
|
moduleNamespacePromise({
|
|
chunkGraph,
|
|
block,
|
|
module,
|
|
request,
|
|
message,
|
|
strict,
|
|
weak,
|
|
runtimeRequirements
|
|
}) {
|
|
if (!module) {
|
|
return this.missingModulePromise({
|
|
request
|
|
});
|
|
}
|
|
const moduleId = chunkGraph.getModuleId(module);
|
|
if (moduleId === null) {
|
|
if (weak) {
|
|
// only weak referenced modules don't get an id
|
|
// we can always emit an error emitting code here
|
|
return this.weakError({
|
|
module,
|
|
chunkGraph,
|
|
request,
|
|
type: "promise"
|
|
});
|
|
}
|
|
throw new Error(
|
|
`RuntimeTemplate.moduleNamespacePromise(): ${noModuleIdErrorMessage(
|
|
module,
|
|
chunkGraph
|
|
)}`
|
|
);
|
|
}
|
|
const promise = this.blockPromise({
|
|
chunkGraph,
|
|
block,
|
|
message,
|
|
runtimeRequirements
|
|
});
|
|
|
|
let appending;
|
|
let idExpr = JSON.stringify(chunkGraph.getModuleId(module));
|
|
const comment = this.comment({
|
|
request
|
|
});
|
|
let header = "";
|
|
if (weak) {
|
|
if (idExpr.length > 8) {
|
|
// 'var x="nnnnnn";x,"+x+",x' vs '"nnnnnn",nnnnnn,"nnnnnn"'
|
|
header += `var id = ${idExpr}; `;
|
|
idExpr = "id";
|
|
}
|
|
runtimeRequirements.add(RuntimeGlobals.moduleFactories);
|
|
header += `if(!${
|
|
RuntimeGlobals.moduleFactories
|
|
}[${idExpr}]) { ${this.weakError({
|
|
module,
|
|
chunkGraph,
|
|
request,
|
|
idExpr,
|
|
type: "statements"
|
|
})} } `;
|
|
}
|
|
const moduleIdExpr = this.moduleId({
|
|
module,
|
|
chunkGraph,
|
|
request,
|
|
weak
|
|
});
|
|
const exportsType = module.getExportsType(chunkGraph.moduleGraph, strict);
|
|
let fakeType = 16;
|
|
switch (exportsType) {
|
|
case "namespace":
|
|
if (header) {
|
|
const rawModule = this.moduleRaw({
|
|
module,
|
|
chunkGraph,
|
|
request,
|
|
weak,
|
|
runtimeRequirements
|
|
});
|
|
appending = `.then(${this.basicFunction(
|
|
"",
|
|
`${header}return ${rawModule};`
|
|
)})`;
|
|
} else {
|
|
runtimeRequirements.add(RuntimeGlobals.require);
|
|
appending = `.then(__webpack_require__.bind(__webpack_require__, ${comment}${idExpr}))`;
|
|
}
|
|
break;
|
|
case "dynamic":
|
|
fakeType |= 4;
|
|
/* fall through */
|
|
case "default-with-named":
|
|
fakeType |= 2;
|
|
/* fall through */
|
|
case "default-only":
|
|
runtimeRequirements.add(RuntimeGlobals.createFakeNamespaceObject);
|
|
if (chunkGraph.moduleGraph.isAsync(module)) {
|
|
if (header) {
|
|
const rawModule = this.moduleRaw({
|
|
module,
|
|
chunkGraph,
|
|
request,
|
|
weak,
|
|
runtimeRequirements
|
|
});
|
|
appending = `.then(${this.basicFunction(
|
|
"",
|
|
`${header}return ${rawModule};`
|
|
)})`;
|
|
} else {
|
|
runtimeRequirements.add(RuntimeGlobals.require);
|
|
appending = `.then(__webpack_require__.bind(__webpack_require__, ${comment}${idExpr}))`;
|
|
}
|
|
appending += `.then(${this.returningFunction(
|
|
`${RuntimeGlobals.createFakeNamespaceObject}(m, ${fakeType})`,
|
|
"m"
|
|
)})`;
|
|
} else {
|
|
fakeType |= 1;
|
|
if (header) {
|
|
const returnExpression = `${RuntimeGlobals.createFakeNamespaceObject}(${moduleIdExpr}, ${fakeType})`;
|
|
appending = `.then(${this.basicFunction(
|
|
"",
|
|
`${header}return ${returnExpression};`
|
|
)})`;
|
|
} else {
|
|
appending = `.then(${RuntimeGlobals.createFakeNamespaceObject}.bind(__webpack_require__, ${comment}${idExpr}, ${fakeType}))`;
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
|
|
return `${promise || "Promise.resolve()"}${appending}`;
|
|
}
|
|
|
|
/**
|
|
* @param {Object} options options object
|
|
* @param {ChunkGraph} options.chunkGraph the chunk graph
|
|
* @param {RuntimeSpec=} options.runtime runtime for which this code will be generated
|
|
* @param {RuntimeSpec | boolean=} options.runtimeCondition only execute the statement in some runtimes
|
|
* @param {Set<string>} options.runtimeRequirements if set, will be filled with runtime requirements
|
|
* @returns {string} expression
|
|
*/
|
|
runtimeConditionExpression({
|
|
chunkGraph,
|
|
runtimeCondition,
|
|
runtime,
|
|
runtimeRequirements
|
|
}) {
|
|
if (runtimeCondition === undefined) return "true";
|
|
if (typeof runtimeCondition === "boolean") return `${runtimeCondition}`;
|
|
/** @type {Set<string>} */
|
|
const positiveRuntimeIds = new Set();
|
|
forEachRuntime(runtimeCondition, runtime =>
|
|
positiveRuntimeIds.add(`${chunkGraph.getRuntimeId(runtime)}`)
|
|
);
|
|
/** @type {Set<string>} */
|
|
const negativeRuntimeIds = new Set();
|
|
forEachRuntime(subtractRuntime(runtime, runtimeCondition), runtime =>
|
|
negativeRuntimeIds.add(`${chunkGraph.getRuntimeId(runtime)}`)
|
|
);
|
|
runtimeRequirements.add(RuntimeGlobals.runtimeId);
|
|
return compileBooleanMatcher.fromLists(
|
|
Array.from(positiveRuntimeIds),
|
|
Array.from(negativeRuntimeIds)
|
|
)(RuntimeGlobals.runtimeId);
|
|
}
|
|
|
|
/**
|
|
*
|
|
* @param {Object} options options object
|
|
* @param {boolean=} options.update whether a new variable should be created or the existing one updated
|
|
* @param {Module} options.module the module
|
|
* @param {ChunkGraph} options.chunkGraph the chunk graph
|
|
* @param {string} options.request the request that should be printed as comment
|
|
* @param {string} options.importVar name of the import variable
|
|
* @param {Module} options.originModule module in which the statement is emitted
|
|
* @param {boolean=} options.weak true, if this is a weak dependency
|
|
* @param {Set<string>} options.runtimeRequirements if set, will be filled with runtime requirements
|
|
* @returns {[string, string]} the import statement and the compat statement
|
|
*/
|
|
importStatement({
|
|
update,
|
|
module,
|
|
chunkGraph,
|
|
request,
|
|
importVar,
|
|
originModule,
|
|
weak,
|
|
runtimeRequirements
|
|
}) {
|
|
if (!module) {
|
|
return [
|
|
this.missingModuleStatement({
|
|
request
|
|
}),
|
|
""
|
|
];
|
|
}
|
|
if (chunkGraph.getModuleId(module) === null) {
|
|
if (weak) {
|
|
// only weak referenced modules don't get an id
|
|
// we can always emit an error emitting code here
|
|
return [
|
|
this.weakError({
|
|
module,
|
|
chunkGraph,
|
|
request,
|
|
type: "statements"
|
|
}),
|
|
""
|
|
];
|
|
}
|
|
throw new Error(
|
|
`RuntimeTemplate.importStatement(): ${noModuleIdErrorMessage(
|
|
module,
|
|
chunkGraph
|
|
)}`
|
|
);
|
|
}
|
|
const moduleId = this.moduleId({
|
|
module,
|
|
chunkGraph,
|
|
request,
|
|
weak
|
|
});
|
|
const optDeclaration = update ? "" : "var ";
|
|
|
|
const exportsType = module.getExportsType(
|
|
chunkGraph.moduleGraph,
|
|
originModule.buildMeta.strictHarmonyModule
|
|
);
|
|
runtimeRequirements.add(RuntimeGlobals.require);
|
|
const importContent = `/* harmony import */ ${optDeclaration}${importVar} = __webpack_require__(${moduleId});\n`;
|
|
|
|
if (exportsType === "dynamic") {
|
|
runtimeRequirements.add(RuntimeGlobals.compatGetDefaultExport);
|
|
return [
|
|
importContent,
|
|
`/* harmony import */ ${optDeclaration}${importVar}_default = /*#__PURE__*/${RuntimeGlobals.compatGetDefaultExport}(${importVar});\n`
|
|
];
|
|
}
|
|
return [importContent, ""];
|
|
}
|
|
|
|
/**
|
|
* @param {Object} options options
|
|
* @param {ModuleGraph} options.moduleGraph the module graph
|
|
* @param {Module} options.module the module
|
|
* @param {string} options.request the request
|
|
* @param {string | string[]} options.exportName the export name
|
|
* @param {Module} options.originModule the origin module
|
|
* @param {boolean|undefined} options.asiSafe true, if location is safe for ASI, a bracket can be emitted
|
|
* @param {boolean} options.isCall true, if expression will be called
|
|
* @param {boolean} options.callContext when false, call context will not be preserved
|
|
* @param {boolean} options.defaultInterop when true and accessing the default exports, interop code will be generated
|
|
* @param {string} options.importVar the identifier name of the import variable
|
|
* @param {InitFragment[]} options.initFragments init fragments will be added here
|
|
* @param {RuntimeSpec} options.runtime runtime for which this code will be generated
|
|
* @param {Set<string>} options.runtimeRequirements if set, will be filled with runtime requirements
|
|
* @returns {string} expression
|
|
*/
|
|
exportFromImport({
|
|
moduleGraph,
|
|
module,
|
|
request,
|
|
exportName,
|
|
originModule,
|
|
asiSafe,
|
|
isCall,
|
|
callContext,
|
|
defaultInterop,
|
|
importVar,
|
|
initFragments,
|
|
runtime,
|
|
runtimeRequirements
|
|
}) {
|
|
if (!module) {
|
|
return this.missingModule({
|
|
request
|
|
});
|
|
}
|
|
if (!Array.isArray(exportName)) {
|
|
exportName = exportName ? [exportName] : [];
|
|
}
|
|
const exportsType = module.getExportsType(
|
|
moduleGraph,
|
|
originModule.buildMeta.strictHarmonyModule
|
|
);
|
|
|
|
if (defaultInterop) {
|
|
if (exportName.length > 0 && exportName[0] === "default") {
|
|
switch (exportsType) {
|
|
case "dynamic":
|
|
if (isCall) {
|
|
return `${importVar}_default()${propertyAccess(exportName, 1)}`;
|
|
} else {
|
|
return asiSafe
|
|
? `(${importVar}_default()${propertyAccess(exportName, 1)})`
|
|
: asiSafe === false
|
|
? `;(${importVar}_default()${propertyAccess(exportName, 1)})`
|
|
: `${importVar}_default.a${propertyAccess(exportName, 1)}`;
|
|
}
|
|
case "default-only":
|
|
case "default-with-named":
|
|
exportName = exportName.slice(1);
|
|
break;
|
|
}
|
|
} else if (exportName.length > 0) {
|
|
if (exportsType === "default-only") {
|
|
return (
|
|
"/* non-default import from non-esm module */undefined" +
|
|
propertyAccess(exportName, 1)
|
|
);
|
|
} else if (
|
|
exportsType !== "namespace" &&
|
|
exportName[0] === "__esModule"
|
|
) {
|
|
return "/* __esModule */true";
|
|
}
|
|
} else if (
|
|
exportsType === "default-only" ||
|
|
exportsType === "default-with-named"
|
|
) {
|
|
runtimeRequirements.add(RuntimeGlobals.createFakeNamespaceObject);
|
|
initFragments.push(
|
|
new InitFragment(
|
|
`var ${importVar}_namespace_cache;\n`,
|
|
InitFragment.STAGE_CONSTANTS,
|
|
-1,
|
|
`${importVar}_namespace_cache`
|
|
)
|
|
);
|
|
return `/*#__PURE__*/ ${
|
|
asiSafe ? "" : asiSafe === false ? ";" : "Object"
|
|
}(${importVar}_namespace_cache || (${importVar}_namespace_cache = ${
|
|
RuntimeGlobals.createFakeNamespaceObject
|
|
}(${importVar}${exportsType === "default-only" ? "" : ", 2"})))`;
|
|
}
|
|
}
|
|
|
|
if (exportName.length > 0) {
|
|
const exportsInfo = moduleGraph.getExportsInfo(module);
|
|
const used = exportsInfo.getUsedName(exportName, runtime);
|
|
if (!used) {
|
|
const comment = Template.toNormalComment(
|
|
`unused export ${propertyAccess(exportName)}`
|
|
);
|
|
return `${comment} undefined`;
|
|
}
|
|
const comment = equals(used, exportName)
|
|
? ""
|
|
: Template.toNormalComment(propertyAccess(exportName)) + " ";
|
|
const access = `${importVar}${comment}${propertyAccess(used)}`;
|
|
if (isCall && callContext === false) {
|
|
return asiSafe
|
|
? `(0,${access})`
|
|
: asiSafe === false
|
|
? `;(0,${access})`
|
|
: `Object(${access})`;
|
|
}
|
|
return access;
|
|
} else {
|
|
return importVar;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* @param {Object} options options
|
|
* @param {AsyncDependenciesBlock} options.block the async block
|
|
* @param {string} options.message the message
|
|
* @param {ChunkGraph} options.chunkGraph the chunk graph
|
|
* @param {Set<string>} options.runtimeRequirements if set, will be filled with runtime requirements
|
|
* @returns {string} expression
|
|
*/
|
|
blockPromise({ block, message, chunkGraph, runtimeRequirements }) {
|
|
if (!block) {
|
|
const comment = this.comment({
|
|
message
|
|
});
|
|
return `Promise.resolve(${comment.trim()})`;
|
|
}
|
|
const chunkGroup = chunkGraph.getBlockChunkGroup(block);
|
|
if (!chunkGroup || chunkGroup.chunks.length === 0) {
|
|
const comment = this.comment({
|
|
message
|
|
});
|
|
return `Promise.resolve(${comment.trim()})`;
|
|
}
|
|
const chunks = chunkGroup.chunks.filter(
|
|
chunk => !chunk.hasRuntime() && chunk.id !== null
|
|
);
|
|
const comment = this.comment({
|
|
message,
|
|
chunkName: block.chunkName
|
|
});
|
|
if (chunks.length === 1) {
|
|
const chunkId = JSON.stringify(chunks[0].id);
|
|
runtimeRequirements.add(RuntimeGlobals.ensureChunk);
|
|
return `${RuntimeGlobals.ensureChunk}(${comment}${chunkId})`;
|
|
} else if (chunks.length > 0) {
|
|
runtimeRequirements.add(RuntimeGlobals.ensureChunk);
|
|
const requireChunkId = chunk =>
|
|
`${RuntimeGlobals.ensureChunk}(${JSON.stringify(chunk.id)})`;
|
|
return `Promise.all(${comment.trim()}[${chunks
|
|
.map(requireChunkId)
|
|
.join(", ")}])`;
|
|
} else {
|
|
return `Promise.resolve(${comment.trim()})`;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* @param {Object} options options
|
|
* @param {AsyncDependenciesBlock} options.block the async block
|
|
* @param {ChunkGraph} options.chunkGraph the chunk graph
|
|
* @param {Set<string>} options.runtimeRequirements if set, will be filled with runtime requirements
|
|
* @param {string=} options.request request string used originally
|
|
* @returns {string} expression
|
|
*/
|
|
asyncModuleFactory({ block, chunkGraph, runtimeRequirements, request }) {
|
|
const dep = block.dependencies[0];
|
|
const module = chunkGraph.moduleGraph.getModule(dep);
|
|
const ensureChunk = this.blockPromise({
|
|
block,
|
|
message: "",
|
|
chunkGraph,
|
|
runtimeRequirements
|
|
});
|
|
const factory = this.returningFunction(
|
|
this.moduleRaw({
|
|
module,
|
|
chunkGraph,
|
|
request,
|
|
runtimeRequirements
|
|
})
|
|
);
|
|
return this.returningFunction(
|
|
ensureChunk.startsWith("Promise.resolve(")
|
|
? `${factory}`
|
|
: `${ensureChunk}.then(${this.returningFunction(factory)})`
|
|
);
|
|
}
|
|
|
|
/**
|
|
* @param {Object} options options
|
|
* @param {Dependency} options.dependency the dependency
|
|
* @param {ChunkGraph} options.chunkGraph the chunk graph
|
|
* @param {Set<string>} options.runtimeRequirements if set, will be filled with runtime requirements
|
|
* @param {string=} options.request request string used originally
|
|
* @returns {string} expression
|
|
*/
|
|
syncModuleFactory({ dependency, chunkGraph, runtimeRequirements, request }) {
|
|
const module = chunkGraph.moduleGraph.getModule(dependency);
|
|
const factory = this.returningFunction(
|
|
this.moduleRaw({
|
|
module,
|
|
chunkGraph,
|
|
request,
|
|
runtimeRequirements
|
|
})
|
|
);
|
|
return this.returningFunction(factory);
|
|
}
|
|
|
|
/**
|
|
* @param {Object} options options
|
|
* @param {string} options.exportsArgument the name of the exports object
|
|
* @param {Set<string>} options.runtimeRequirements if set, will be filled with runtime requirements
|
|
* @returns {string} statement
|
|
*/
|
|
defineEsModuleFlagStatement({ exportsArgument, runtimeRequirements }) {
|
|
runtimeRequirements.add(RuntimeGlobals.makeNamespaceObject);
|
|
runtimeRequirements.add(RuntimeGlobals.exports);
|
|
return `${RuntimeGlobals.makeNamespaceObject}(${exportsArgument});\n`;
|
|
}
|
|
}
|
|
|
|
module.exports = RuntimeTemplate;
|