@nestjs/cli
Version:
Nest - modern, fast, powerful node.js web framework (@cli)
52 lines (51 loc) • 3.55 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
exports.PluginMetadataPrinter = void 0;
const fs_1 = require("fs");
const path_1 = require("path");
const SERIALIZED_METADATA_FILENAME = 'metadata.ts';
const TYPE_IMPORT_VARIABLE_NAME = 't';
/**
* Prints the metadata to a file.
*/
class PluginMetadataPrinter {
print(metadata, typeImports, options, tsBinary) {
const objectLiteralExpr = tsBinary.factory.createObjectLiteralExpression(Object.keys(metadata).map((key) => this.recursivelyCreatePropertyAssignment(key, metadata[key], tsBinary)));
const exportAssignment = tsBinary.factory.createExportAssignment(undefined, undefined, tsBinary.factory.createArrowFunction([tsBinary.factory.createToken(tsBinary.SyntaxKind.AsyncKeyword)], undefined, [], undefined, tsBinary.factory.createToken(tsBinary.SyntaxKind.EqualsGreaterThanToken), tsBinary.factory.createBlock([
this.createTypeImportVariableStatement(typeImports, tsBinary),
tsBinary.factory.createReturnStatement(objectLiteralExpr),
], true)));
const printer = tsBinary.createPrinter({
newLine: tsBinary.NewLineKind.LineFeed,
});
const resultFile = tsBinary.createSourceFile('file.ts', '', tsBinary.ScriptTarget.Latest,
/*setParentNodes*/ false, tsBinary.ScriptKind.TS);
const filename = (0, path_1.join)(options.outputDir, options.filename ?? SERIALIZED_METADATA_FILENAME);
const eslintPrefix = `/* eslint-disable */\n`;
(0, fs_1.writeFileSync)(filename, eslintPrefix +
printer.printNode(tsBinary.EmitHint.Unspecified, exportAssignment, resultFile));
}
recursivelyCreatePropertyAssignment(identifier, meta, tsBinary) {
if (Array.isArray(meta)) {
return tsBinary.factory.createPropertyAssignment(tsBinary.factory.createStringLiteral(identifier), tsBinary.factory.createArrayLiteralExpression(meta.map(([importExpr, meta]) => tsBinary.factory.createArrayLiteralExpression([
importExpr,
tsBinary.factory.createObjectLiteralExpression(Object.keys(meta).map((key) => this.recursivelyCreatePropertyAssignment(key, meta[key], tsBinary))),
]))));
}
return tsBinary.factory.createPropertyAssignment(tsBinary.factory.createStringLiteral(identifier), tsBinary.isObjectLiteralExpression(meta)
? meta
: tsBinary.factory.createObjectLiteralExpression(Object.keys(meta).map((key) => this.recursivelyCreatePropertyAssignment(key, meta[key], tsBinary))));
}
createTypeImportVariableStatement(typeImports, tsBinary) {
return tsBinary.factory.createVariableStatement(undefined, tsBinary.factory.createVariableDeclarationList([
tsBinary.factory.createVariableDeclaration(tsBinary.factory.createIdentifier(TYPE_IMPORT_VARIABLE_NAME), undefined, undefined, tsBinary.factory.createObjectLiteralExpression(Object.keys(typeImports).map((ti) => this.createPropertyAssignment(ti, typeImports[ti], tsBinary)), true)),
], tsBinary.NodeFlags.Const |
tsBinary.NodeFlags.AwaitContext |
tsBinary.NodeFlags.ContextFlags |
tsBinary.NodeFlags.TypeExcludesFlags));
}
createPropertyAssignment(identifier, target, tsBinary) {
return tsBinary.factory.createPropertyAssignment(tsBinary.factory.createComputedPropertyName(tsBinary.factory.createStringLiteral(identifier)), tsBinary.factory.createIdentifier(target));
}
}
exports.PluginMetadataPrinter = PluginMetadataPrinter;