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- /*
- MIT License http://www.opensource.org/licenses/mit-license.php
- Author Tobias Koppers @sokra
- */
- "use strict";
-
- const DependencyReference = require("./DependencyReference");
- const HarmonyImportDependency = require("./HarmonyImportDependency");
- const HarmonyLinkingError = require("../HarmonyLinkingError");
-
- class HarmonyImportSpecifierDependency extends HarmonyImportDependency {
- constructor(
- request,
- originModule,
- sourceOrder,
- parserScope,
- id,
- name,
- range,
- strictExportPresence
- ) {
- super(request, originModule, sourceOrder, parserScope);
- this.id = id === null ? null : `${id}`;
- this.redirectedId = undefined;
- this.name = name;
- this.range = range;
- this.strictExportPresence = strictExportPresence;
- this.namespaceObjectAsContext = false;
- this.callArgs = undefined;
- this.call = undefined;
- this.directImport = undefined;
- this.shorthand = undefined;
- }
-
- get type() {
- return "harmony import specifier";
- }
-
- get _id() {
- return this.redirectedId || this.id;
- }
-
- getReference() {
- if (!this._module) return null;
- return new DependencyReference(
- this._module,
- this._id && !this.namespaceObjectAsContext ? [this._id] : true,
- false,
- this.sourceOrder
- );
- }
-
- getWarnings() {
- if (
- this.strictExportPresence ||
- this.originModule.buildMeta.strictHarmonyModule
- ) {
- return [];
- }
- return this._getErrors();
- }
-
- getErrors() {
- if (
- this.strictExportPresence ||
- this.originModule.buildMeta.strictHarmonyModule
- ) {
- return this._getErrors();
- }
- return [];
- }
-
- _getErrors() {
- const importedModule = this._module;
- if (!importedModule) {
- return;
- }
-
- if (!importedModule.buildMeta || !importedModule.buildMeta.exportsType) {
- // It's not an harmony module
- if (
- this.originModule.buildMeta.strictHarmonyModule &&
- this._id &&
- this._id !== "default"
- ) {
- // In strict harmony modules we only support the default export
- return [
- new HarmonyLinkingError(
- `Can't import the named export '${this._id}' from non EcmaScript module (only default export is available)`
- )
- ];
- }
- return;
- }
-
- if (!this._id) {
- return;
- }
-
- if (importedModule.isProvided(this._id) !== false) {
- // It's provided or we are not sure
- return;
- }
-
- // We are sure that it's not provided
- const idIsNotNameMessage =
- this._id !== this.name ? ` (imported as '${this.name}')` : "";
- const errorMessage = `"export '${this._id}'${idIsNotNameMessage} was not found in '${this.userRequest}'`;
- return [new HarmonyLinkingError(errorMessage)];
- }
-
- // implement this method to allow the occurrence order plugin to count correctly
- getNumberOfIdOccurrences() {
- return 0;
- }
-
- updateHash(hash) {
- super.updateHash(hash);
- const importedModule = this._module;
- hash.update((importedModule && this._id) + "");
- hash.update(
- (importedModule && this._id && importedModule.isUsed(this._id)) + ""
- );
- hash.update(
- (importedModule &&
- (!importedModule.buildMeta || importedModule.buildMeta.exportsType)) +
- ""
- );
- hash.update(
- (importedModule &&
- importedModule.used + JSON.stringify(importedModule.usedExports)) + ""
- );
- }
-
- disconnect() {
- super.disconnect();
- this.redirectedId = undefined;
- }
- }
-
- HarmonyImportSpecifierDependency.Template = class HarmonyImportSpecifierDependencyTemplate extends HarmonyImportDependency.Template {
- apply(dep, source, runtime) {
- super.apply(dep, source, runtime);
- const content = this.getContent(dep, runtime);
- source.replace(dep.range[0], dep.range[1] - 1, content);
- }
-
- getContent(dep, runtime) {
- const exportExpr = runtime.exportFromImport({
- module: dep._module,
- request: dep.request,
- exportName: dep._id,
- originModule: dep.originModule,
- asiSafe: dep.shorthand,
- isCall: dep.call,
- callContext: !dep.directImport,
- importVar: dep.getImportVar()
- });
- return dep.shorthand ? `${dep.name}: ${exportExpr}` : exportExpr;
- }
- };
-
- module.exports = HarmonyImportSpecifierDependency;
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