function resolveBuiltin(target) {
var resolved = lassoResolveFrom(__dirname, target);
if (!resolved) {
throw new Error('Missing builtin: ' + target);
}
return resolved.path;
}
transform: function (code, context) {
var file = context.dependency.file;
if (!file || file.includes('node_modules/') || file.includes('test/') || file.includes('coverage/') || file.includes('benchmark/')) return code;
var unwrappedCode;
if (context.dependency.type === 'commonjs-def') {
unwrappedCode = code.replace(/^\$\_mod[^\n]+?\{ /, '').replace(/\n\}\);$/, '');
}
var actualFile = resolve(__dirname, file).path;
var instrumentedCode = instrumenter.instrumentSync(unwrappedCode || code, actualFile);
return unwrappedCode ? code.replace(unwrappedCode, instrumentedCode) : instrumentedCode;
}
async function defaultUrlResolver (url, lassoContext) {
if (url.indexOf('//') !== -1) {
return url;
}
var queryStart = url.indexOf('?');
var query;
var target = url;
if (queryStart !== -1) {
query = url.substring(queryStart + 1);
target = url.substring(0, queryStart);
}
if (target.charAt(0) === '/' && target.charAt(1) !== '/') {
target = nodePath.join(lassoContext.getProjectRoot(), target);
} else if (target.startsWith(REQUIRE_PREFIX)) {
target = target.substring(REQUIRE_PREFIX.length).trim();
var from;
if (lassoContext.dependency) {
from = lassoContext.dependency.getDir(lassoContext);
} else {
from = lassoContext.getProjectRoot();
}
var resolved = lassoResolveFrom(from, target);
if (resolved) {
target = resolved.path;
} else {
var err = new Error('Module not found: ' + target + ' (from: ' + from + ')');
err.target = target;
err.from = from;
err.code = 'MODULE_NOT_FOUND';
throw err;
}
}
if (query) {
// Add back the query string
target += '?' + query;
}
return target;
}