/
MetaProperty.ts
148 lines (137 loc) · 4.27 KB
/
MetaProperty.ts
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import MagicString from 'magic-string';
import { accessedFileUrlGlobals, accessedMetaUrlGlobals } from '../../utils/defaultPlugin';
import { dirname, normalize, relative } from '../../utils/path';
import { PluginDriver } from '../../utils/PluginDriver';
import { ObjectPathKey } from '../utils/PathTracker';
import Identifier from './Identifier';
import MemberExpression from './MemberExpression';
import * as NodeType from './NodeType';
import { NodeBase } from './shared/Node';
const ASSET_PREFIX = 'ROLLUP_ASSET_URL_';
const CHUNK_PREFIX = 'ROLLUP_CHUNK_URL_';
const FILE_PREFIX = 'ROLLUP_FILE_URL_';
export default class MetaProperty extends NodeBase {
meta!: Identifier;
property!: Identifier;
type!: NodeType.tMetaProperty;
private metaProperty?: string | null;
hasEffects(): boolean {
return false;
}
hasEffectsWhenAccessedAtPath(path: ObjectPathKey[]): boolean {
return path.length > 1;
}
include() {
if (!this.included) {
this.included = true;
const parent = this.parent;
const metaProperty = (this.metaProperty =
parent instanceof MemberExpression && typeof parent.propertyKey === 'string'
? parent.propertyKey
: null);
if (
metaProperty &&
(metaProperty.startsWith(FILE_PREFIX) ||
metaProperty.startsWith(ASSET_PREFIX) ||
metaProperty.startsWith(CHUNK_PREFIX))
) {
this.scope.addAccessedGlobalsByFormat(accessedFileUrlGlobals);
} else {
this.scope.addAccessedGlobalsByFormat(accessedMetaUrlGlobals);
}
}
}
initialise() {
if (this.meta.name === 'import') {
this.context.addImportMeta(this);
}
}
renderFinalMechanism(
code: MagicString,
chunkId: string,
format: string,
outputPluginDriver: PluginDriver
): void {
if (!this.included) return;
const parent = this.parent;
const metaProperty = this.metaProperty as string | null;
if (
metaProperty &&
(metaProperty.startsWith(FILE_PREFIX) ||
metaProperty.startsWith(ASSET_PREFIX) ||
metaProperty.startsWith(CHUNK_PREFIX))
) {
let referenceId: string | null = null;
let assetReferenceId: string | null = null;
let chunkReferenceId: string | null = null;
let fileName: string;
if (metaProperty.startsWith(FILE_PREFIX)) {
referenceId = metaProperty.substr(FILE_PREFIX.length);
fileName = outputPluginDriver.getFileName(referenceId);
} else if (metaProperty.startsWith(ASSET_PREFIX)) {
this.context.warnDeprecation(
`Using the "${ASSET_PREFIX}" prefix to reference files is deprecated. Use the "${FILE_PREFIX}" prefix instead.`,
false
);
assetReferenceId = metaProperty.substr(ASSET_PREFIX.length);
fileName = outputPluginDriver.getFileName(assetReferenceId);
} else {
this.context.warnDeprecation(
`Using the "${CHUNK_PREFIX}" prefix to reference files is deprecated. Use the "${FILE_PREFIX}" prefix instead.`,
false
);
chunkReferenceId = metaProperty.substr(CHUNK_PREFIX.length);
fileName = outputPluginDriver.getFileName(chunkReferenceId);
}
const relativePath = normalize(relative(dirname(chunkId), fileName));
let replacement;
if (assetReferenceId !== null) {
replacement = outputPluginDriver.hookFirstSync('resolveAssetUrl', [
{
assetFileName: fileName,
chunkId,
format,
moduleId: this.context.module.id,
relativeAssetPath: relativePath
}
]);
}
if (!replacement) {
replacement = outputPluginDriver.hookFirstSync<'resolveFileUrl', string>('resolveFileUrl', [
{
assetReferenceId,
chunkId,
chunkReferenceId,
fileName,
format,
moduleId: this.context.module.id,
referenceId: referenceId || assetReferenceId || (chunkReferenceId as string),
relativePath
}
]);
}
code.overwrite(
(parent as MemberExpression).start,
(parent as MemberExpression).end,
replacement,
{ contentOnly: true }
);
return;
}
const replacement = outputPluginDriver.hookFirstSync('resolveImportMeta', [
metaProperty,
{
chunkId,
format,
moduleId: this.context.module.id
}
]);
if (typeof replacement === 'string') {
if (parent instanceof MemberExpression) {
code.overwrite(parent.start, parent.end, replacement, { contentOnly: true });
} else {
code.overwrite(this.start, this.end, replacement, { contentOnly: true });
}
}
}
}