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// n.b. ts-morph is a sibling devDependency of typescript, so that the module
// loader will resolve our project's typescript package, not the transient
// dependency of ts-morph. We only want to reference our typescript dependency
// for its version and its lib.dom.d.ts file. If any typescript functionality
// is needed, use import { ts } from "ts-morph";
import {
InterfaceDeclaration,
Node,
Project,
Structure,
SyntaxKind,
TypeAliasDeclaration,
} from 'ts-morph';
import { version } from 'typescript';
// List of types we directly reference from the dom lib. Only interface and type
// alias identifiers are valid, since other syntax types (class, function, var)
// are implementations, which will not be available outside of the browser.
const types = [
'AuthenticatorAssertionResponse',
'AttestationConveyancePreference',
'AuthenticatorAttestationResponse',
'AuthenticatorTransport',
'AuthenticationExtensionsClientInputs',
'AuthenticationExtensionsClientOutputs',
'AuthenticatorSelectionCriteria',
'COSEAlgorithmIdentifier',
'PublicKeyCredential',
'PublicKeyCredentialCreationOptions',
'PublicKeyCredentialDescriptor',
'PublicKeyCredentialParameters',
'PublicKeyCredentialRequestOptions',
'PublicKeyCredentialUserEntity',
'UserVerificationRequirement',
];
const project = new Project({ skipAddingFilesFromTsConfig: true });
const domSourcePath = 'typescript/lib/lib.dom.d.ts';
const domSourceFile = project.addSourceFileAtPath(require.resolve(domSourcePath));
const resolvedNodes = new Set<InterfaceDeclaration | TypeAliasDeclaration>();
const unresolvedNodes = new Set<InterfaceDeclaration | TypeAliasDeclaration>(
types.map(type => {
const node = domSourceFile.getInterface(type) ?? domSourceFile.getTypeAlias(type);
if (!node) {
throw new Error(`${type} does not refer to an interface or type alias`);
}
return node;
}),
);
while (unresolvedNodes.size > 0) {
for (const node of unresolvedNodes.values()) {
unresolvedNodes.delete(node);
resolvedNodes.add(node);
// Declarations in lib files are never exported because they are globally
// available. Since we are extracting the types to a module, we export them.
node.setIsExported(true);
// Find all descendant identifiers which reference an interface or type
// alias, and add them to the unresolved list.
for (const id of node.getDescendantsOfKind(SyntaxKind.Identifier)) {
for (const dn of id.getDefinitionNodes()) {
if (Node.isInterfaceDeclaration(dn) || Node.isTypeAliasDeclaration(dn)) {
if (!resolvedNodes.has(dn)) {
unresolvedNodes.add(dn);
}
}
}
}
}
}
const outputSourceFile = project.createSourceFile(`src/dom.ts`, undefined, { overwrite: true });
outputSourceFile.addStatements([
`// Generated from typescript@${version} ${domSourcePath}`,
`// To regenerate, run the following command from the project root:`,
`// npx lerna --scope=@simplewebauthn/typescript-types exec -- npm run extract-dom-types`,
]);
const resolvedStructures = Array.from(resolvedNodes).map(node => node.getStructure());
outputSourceFile.addInterfaces(resolvedStructures.filter(Structure.isInterface));
outputSourceFile.addTypeAliases(resolvedStructures.filter(Structure.isTypeAlias));
outputSourceFile.saveSync();
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