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