return 0, true
	}
	return 0, false
}

// disallowVendor checks that srcDir is allowed to import p as path.
// If the import is allowed, disallowVendor returns the original package p.
// If not, it returns a PackageError.
func disallowVendor(srcDir string, path string, importerPath string, p *Package, stk *ImportStack) *PackageError {