typia/lib/transformers/ImportTransformer.mjs

Superfast runtime validators with only one line

import path from 'path';
import ts from 'typescript';

var ImportTransformer;
(function (ImportTransformer) {
    ImportTransformer.transform = (props) => (context) => (file) => transform_file({
        top: props.from,
        to: props.to,
        context,
        file,
    });
    const transform_file = (props) => {
        if (props.file.isDeclarationFile)
            return props.file;
        const from = get_directory_path(path.resolve(props.file.getSourceFile().fileName));
        const to = from.replace(props.top, props.to);
        return ts.visitEachChild(props.file, (node) => transform_node({
            top: props.top,
            from,
            to,
            node,
        }), props.context);
    };
    const transform_node = (props) => {
        if (!ts.isImportDeclaration(props.node) ||
            !ts.isStringLiteral(props.node.moduleSpecifier))
            return props.node;
        const text = props.node.moduleSpecifier.text;
        if (text[0] !== ".")
            return props.node;
        const location = path.resolve(props.from, text);
        if (location.indexOf(props.top) === 0)
            return props.node;
        const replaced = (() => {
            const simple = path
                .relative(props.to, location)
                .split(path.sep)
                .join("/");
            return simple[0] === "." ? simple : `./${simple}`;
        })();
        return ts.factory.createImportDeclaration(undefined, props.node.importClause, ts.factory.createStringLiteral(replaced), props.node.assertClause);
    };
})(ImportTransformer || (ImportTransformer = {}));
const get_directory_path = (file) => {
    const split = path.resolve(file).split(path.sep);
    split.pop();
    return path.resolve(split.join(path.sep));
};

export { ImportTransformer };
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