@masknet/eslint-plugin/lib/type-checker.js

eslint plugin for masknet

export function isElement(checker, node) {
    return isBaseType(checker, node, ['Window', 'Document', 'Element']);
}
export function isEventTarget(checker, node) {
    return isBaseType(checker, node, ['Window', 'Document', 'Element', 'EventTarget']);
}
export function isKeyboardEvent(checker, node) {
    return isBaseType(checker, node, ['KeyboardEvent']);
}
function isBaseType(checker, node, typeNames) {
    const type = checker.getTypeAtLocation(node);
    const types = type.isUnionOrIntersection() ? type.types : [type];
    const allTypes = types.flatMap((t) => [t, ...(t.getBaseTypes() ?? [])]);
    return allTypes.some((t) => {
        const symbol = t.getSymbol();
        return symbol && typeNames.includes(checker.symbolToString(symbol));
    });
}
export function isConstructor(checker, node, typeName) {
    return getConstructorTypeName(checker, node) === typeName;
}
function getConstructorTypeName(checker, node) {
    const symbol = checker.getTypeAtLocation(node).getSymbol();
    if (!symbol?.valueDeclaration)
        return;
    const type = checker.getTypeOfSymbolAtLocation(symbol, symbol.valueDeclaration);
    return checker.typeToString(type);
}
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