create-js-app-scripts
Version:
Configuration and scripts for Create Js App.
196 lines (185 loc) • 8.4 kB
JavaScript
/*
MIT License http://www.opensource.org/licenses/mit-license.php
Author Tobias Koppers @sokra
*/
var NullDependency = require("./NullDependency");
var HarmonyModulesHelpers = require("./HarmonyModulesHelpers");
function HarmonyExportImportedSpecifierDependency(originModule, importDependency, importedVar, id, name, position) {
NullDependency.call(this);
this.originModule = originModule;
this.importDependency = importDependency;
this.importedVar = importedVar;
this.id = id;
this.name = name;
this.position = position;
}
module.exports = HarmonyExportImportedSpecifierDependency;
HarmonyExportImportedSpecifierDependency.prototype = Object.create(NullDependency.prototype);
HarmonyExportImportedSpecifierDependency.prototype.constructor = HarmonyExportImportedSpecifierDependency;
HarmonyExportImportedSpecifierDependency.prototype.type = "harmony export imported specifier";
HarmonyExportImportedSpecifierDependency.prototype.getReference = function() {
var used = this.originModule.isUsed(this.name);
var active = HarmonyModulesHelpers.isActive(this.originModule, this);
if(!this.importDependency.module || !used || !active) return null;
if(!this.originModule.usedExports) return null;
var m = this.importDependency.module;
if(!this.name) {
// export *
if(Array.isArray(this.originModule.usedExports)) {
// reexport * with known used exports
var activeExports = HarmonyModulesHelpers.getActiveExports(this.originModule);
if(Array.isArray(m.providedExports)) {
return {
module: m,
importedNames: this.originModule.usedExports.filter(function(id) {
return activeExports.indexOf(id) < 0 && m.providedExports.indexOf(id) >= 0 && id !== "default";
}, this)
}
} else {
return {
module: m,
importedNames: this.originModule.usedExports.filter(function(id) {
return activeExports.indexOf(id) < 0 && id !== "default";
}, this)
}
}
} else if(Array.isArray(m.providedExports)) {
return {
module: m,
importedNames: m.providedExports.filter(function(id) {
return id !== "default"
})
}
} else {
return {
module: m,
importedNames: true
}
}
} else {
if(Array.isArray(this.originModule.usedExports) && this.originModule.usedExports.indexOf(this.name) < 0) return null;
if(this.id) {
// export { name as name }
return {
module: m,
importedNames: [this.id]
};
} else {
// export { * as name }
return {
module: m,
importedNames: true
};
}
}
};
HarmonyExportImportedSpecifierDependency.prototype.getExports = function() {
if(this.name) {
return {
exports: [this.name]
}
};
if(this.importDependency.module && Array.isArray(this.importDependency.module.providedExports)) {
return {
exports: this.importDependency.module.providedExports.filter(function(id) {
return id !== "default"
}),
dependencies: [this.importDependency.module]
};
}
if(this.importDependency.module && this.importDependency.module.providedExports) {
return {
exports: true
};
}
if(this.importDependency.module) {
return {
exports: null,
dependencies: [this.importDependency.module]
};
}
return {
exports: null
}
};
HarmonyExportImportedSpecifierDependency.prototype.describeHarmonyExport = function() {
return {
exportedName: this.name,
precedence: this.name ? 2 : 3
};
};
HarmonyExportImportedSpecifierDependency.prototype.updateHash = function(hash) {
NullDependency.prototype.updateHash.call(this, hash);
var importedModule = this.importDependency.module;
hash.update((importedModule && (importedModule.used + JSON.stringify(importedModule.usedExports) + JSON.stringify(importedModule.providedExports))) + "");
};
HarmonyExportImportedSpecifierDependency.Template = function HarmonyExportImportedSpecifierDependencyTemplate() {};
HarmonyExportImportedSpecifierDependency.Template.prototype.apply = function(dep, source, outputOptions, requestShortener) {
var name = dep.importedVar;
var used = dep.originModule.isUsed(dep.name);
var importedModule = dep.importDependency.module;
var active = HarmonyModulesHelpers.isActive(dep.originModule, dep);
var content;
var activeExports;
var items;
var importIsHarmony = importedModule && (!importedModule.meta || importedModule.meta.harmonyModule);
function getReexportStatement(key, valueKey) {
return(importIsHarmony || !valueKey ? "" : "if(__webpack_require__.o(" + name + ", " + valueKey + ")) ") +
"__webpack_require__.d(exports, " + key + ", " +
"function() { return " + name + (valueKey === null ? "_default.a" : valueKey && "[" + valueKey + "]") + "; });\n"
}
if(!used) { // we want to rexport something, but the export isn't used
content = "/* unused harmony reexport " + dep.name + " */\n";
} else if(!active) { // we want to reexport something but another exports overrides this one
content = "/* inactive harmony reexport " + (dep.name || "namespace") + " */\n";
} else if(dep.name && dep.id === "default" && !(importedModule && (!importedModule.meta || importedModule.meta.harmonyModule))) { // we want to reexport the default export from a non-hamory module
content = "/* harmony reexport (default from non-hamory) */ " + getReexportStatement(JSON.stringify(used), null);
} else if(dep.name && dep.id) { // we want to reexport a key as new key
var idUsed = importedModule && importedModule.isUsed(dep.id);
content = "/* harmony reexport (binding) */ " + getReexportStatement(JSON.stringify(used), JSON.stringify(idUsed));
} else if(dep.name) { // we want to reexport the module object as named export
content = "/* harmony reexport (module object) */ " + getReexportStatement(JSON.stringify(used), "");
} else if(Array.isArray(dep.originModule.usedExports)) { // we know which exports are used
activeExports = HarmonyModulesHelpers.getActiveExports(dep.originModule);
items = dep.originModule.usedExports.map(function(id) {
if(id === "default") return;
if(activeExports.indexOf(id) >= 0) return;
if(importedModule.isProvided(id) === false) return;
var exportUsed = dep.originModule.isUsed(id);
var idUsed = importedModule && importedModule.isUsed(id);
return [exportUsed, idUsed];
}).filter(Boolean);
if(items.length > 0) {
content = items.map(function(item) {
return "/* harmony namespace reexport (by used) */ " + getReexportStatement(JSON.stringify(item[0]), JSON.stringify(item[1]));
}).join("");
} else content = "/* unused harmony namespace reexport */\n";
} else if(dep.originModule.usedExports && importedModule && Array.isArray(importedModule.providedExports)) { // not sure which exports are used, but we know which are provided
activeExports = HarmonyModulesHelpers.getActiveExports(dep.originModule);
items = importedModule.providedExports.map(function(id) {
if(id === "default") return;
if(activeExports.indexOf(id) >= 0) return;
var exportUsed = dep.originModule.isUsed(id);
var idUsed = importedModule && importedModule.isUsed(id);
return [exportUsed, idUsed];
}).filter(Boolean);
if(items.length > 0) {
content = items.map(function(item) {
return "/* harmony namespace reexport (by provided) */ " + getReexportStatement(JSON.stringify(item[0]), JSON.stringify(item[1]));
}).join("");
} else content = "/* empty harmony namespace reexport */\n";
} else if(dep.originModule.usedExports) { // not sure which exports are used and provided
activeExports = HarmonyModulesHelpers.getActiveExports(dep.originModule);
content = "/* harmony namespace reexport (unknown) */ for(var __WEBPACK_IMPORT_KEY__ in " + name + ") ";
// Filter out exports which are defined by other exports
// and filter out default export because it cannot be reexported with *
if(activeExports.length > 0)
content += "if(" + JSON.stringify(activeExports.concat("default")) + ".indexOf(__WEBPACK_IMPORT_KEY__) < 0) ";
else
content += "if(__WEBPACK_IMPORT_KEY__ !== 'default') ";
content += "(function(key) { __webpack_require__.d(exports, key, function() { return " + name + "[key]; }) }(__WEBPACK_IMPORT_KEY__));\n";
} else {
content = "/* unused harmony reexport namespace */\n";
}
source.insert(dep.position, content);
};