99 lines
3.0 KiB
JavaScript
99 lines
3.0 KiB
JavaScript
|
"use strict";
|
||
|
|
|
||
|
|
Object.defineProperty(exports, "__esModule", {
|
||
|
|
value: true
|
||
|
|
});
|
||
|
|
exports.ESMOutputFormat = void 0;
|
||
|
|
class ESMOutputFormat {
|
||
|
|
constructor(packager) {
|
||
|
|
this.packager = packager;
|
||
|
|
}
|
||
|
|
buildBundlePrelude() {
|
||
|
|
let res = '';
|
||
|
|
let lines = 0;
|
||
|
|
for (let [source, specifiers] of this.packager.externals) {
|
||
|
|
let defaultSpecifier = null;
|
||
|
|
let namespaceSpecifier = null;
|
||
|
|
let namedSpecifiers = [];
|
||
|
|
for (let [imported, symbol] of specifiers) {
|
||
|
|
if (imported === 'default' /* || isCommonJS*/) {
|
||
|
|
defaultSpecifier = symbol;
|
||
|
|
} else if (imported === '*') {
|
||
|
|
namespaceSpecifier = `* as ${symbol}`;
|
||
|
|
} else {
|
||
|
|
let specifier = imported;
|
||
|
|
if (symbol !== imported) {
|
||
|
|
specifier += ` as ${symbol}`;
|
||
|
|
}
|
||
|
|
namedSpecifiers.push(specifier);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
// ESModule syntax allows combining default and namespace specifiers, or default and named, but not all three.
|
||
|
|
|
||
|
|
let imported = '';
|
||
|
|
if (namespaceSpecifier) {
|
||
|
|
let s = namespaceSpecifier;
|
||
|
|
if (defaultSpecifier) {
|
||
|
|
s = `${defaultSpecifier}, ${namespaceSpecifier}`;
|
||
|
|
}
|
||
|
|
res += `import ${s} from ${JSON.stringify(source)};\n`;
|
||
|
|
lines++;
|
||
|
|
} else if (defaultSpecifier) {
|
||
|
|
imported = defaultSpecifier;
|
||
|
|
if (namedSpecifiers.length > 0) {
|
||
|
|
imported += `, {${namedSpecifiers.join(', ')}}`;
|
||
|
|
}
|
||
|
|
} else if (namedSpecifiers.length > 0) {
|
||
|
|
imported = `{${namedSpecifiers.join(', ')}}`;
|
||
|
|
}
|
||
|
|
if (imported.length > 0) {
|
||
|
|
res += `import ${imported} from ${JSON.stringify(source)};\n`;
|
||
|
|
lines++;
|
||
|
|
} else if (!namespaceSpecifier) {
|
||
|
|
res += `import ${JSON.stringify(source)};\n`;
|
||
|
|
lines++;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
if (res.length > 0) {
|
||
|
|
res += '\n';
|
||
|
|
lines++;
|
||
|
|
}
|
||
|
|
return [res, lines];
|
||
|
|
}
|
||
|
|
buildBundlePostlude() {
|
||
|
|
let res = '';
|
||
|
|
let lines = 0;
|
||
|
|
let exportSpecifiers = [];
|
||
|
|
for (let {
|
||
|
|
asset,
|
||
|
|
exportSymbol,
|
||
|
|
local,
|
||
|
|
exportAs
|
||
|
|
} of this.packager.exportedSymbols.values()) {
|
||
|
|
if (this.packager.wrappedAssets.has(asset.id)) {
|
||
|
|
let obj = `parcelRequire("${this.packager.bundleGraph.getAssetPublicId(asset)}")`;
|
||
|
|
res += `\nvar ${local} = ${this.packager.getPropertyAccess(obj, exportSymbol)};`;
|
||
|
|
lines++;
|
||
|
|
}
|
||
|
|
for (let as of exportAs) {
|
||
|
|
let specifier = local;
|
||
|
|
if (exportAs !== local) {
|
||
|
|
specifier += ` as ${as}`;
|
||
|
|
}
|
||
|
|
exportSpecifiers.push(specifier);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
if (exportSpecifiers.length > 0) {
|
||
|
|
res += `\nexport {${exportSpecifiers.join(', ')}};`;
|
||
|
|
lines++;
|
||
|
|
}
|
||
|
|
if (this.packager.needsPrelude && this.packager.shouldBundleQueue(this.packager.bundle)) {
|
||
|
|
// Should be last thing the bundle executes on intial eval
|
||
|
|
res += `\n$parcel$global.rlb(${JSON.stringify(this.packager.bundle.publicId)})`;
|
||
|
|
lines++;
|
||
|
|
}
|
||
|
|
return [res, lines];
|
||
|
|
}
|
||
|
|
}
|
||
|
|
exports.ESMOutputFormat = ESMOutputFormat;
|