code-complexity/dist/src/lib/complexity/cyclomatic.js

Measure the churn/complexity score. Higher values mean hotspots where refactorings should happen.

"use strict";
exports.__esModule = true;
exports.calculate = void 0;
var node_path_1 = require("node:path");
var node_fs_1 = require("node:fs");
var utils_1 = require("../../utils");
var core_1 = require("@babel/core");
// eslint-disable-next-line @typescript-eslint/no-var-requires
var escomplex = require("escomplex");
var internal = { debug: (0, utils_1.buildDebugger)("cyclomatic") };
function calculate(path) {
    switch ((0, node_path_1.extname)(path)) {
        case ".ts":
            return fromTypeScript(path);
        case ".mjs":
        case ".js":
            return fromJavaScript(path);
        default:
            internal.debug("Unsupported file extension. Falling back on default complexity (1)");
            return new utils_1.UnsupportedExtension();
    }
}
exports.calculate = calculate;
function fromJavaScript(path) {
    var content = (0, node_fs_1.readFileSync)(path, { encoding: "utf8" });
    var babelResult = (0, core_1.transformSync)(content, {
        presets: ["@babel/preset-env"]
    });
    if (!babelResult)
        throw new Error("Error while parsing file ".concat(path));
    var result = escomplex.analyse(babelResult.code, {});
    return result.aggregate.cyclomatic;
}
function fromTypeScript(path) {
    var content = (0, node_fs_1.readFileSync)(path, { encoding: "utf8" });
    var babelResult = (0, core_1.transformSync)(content, {
        plugins: ["@babel/plugin-transform-typescript"],
        presets: ["@babel/preset-env"]
    });
    if (!babelResult)
        throw new Error("Error while parsing file ".concat(path));
    var result = escomplex.analyse(babelResult.code);
    return result.aggregate.cyclomatic;
}