public RequireReferenceParser(IAsset asset, ScriptBundle bundle, CommonJsSettings settings, IExternalModuleResolver moduleResolver)
{
_asset = asset;
_bundle = bundle;
_settings = settings;
_moduleResolver = moduleResolver;
_moduleAsset = _asset as IModuleAsset;
}
public override void Visit(BinaryOperator node)
{
// if the file has no dependencies it might end up here
// all we care about is whether it has any exports
if (_moduleAsset == null && node.IsAssign && this.IsExportMember(node.Operand1))
{
_moduleAsset = new ModuleAsset(_asset);
}
base.Visit(node);
}
public override void Visit(CallNode node)
{
if (this.IsRequireCall(node))
{
var constWrapper = node.Arguments[0] as ConstantWrapper;
if (constWrapper != null && constWrapper.PrimitiveType == PrimitiveType.String)
{
_moduleAsset = _moduleAsset ?? new ModuleAsset(_asset);
var path = (string)constWrapper.Value;
if (FileUtility.IsRelativePath(path))
{
if (path.StartsWith("./", StringComparison.Ordinal))
{
path = path.Length == 2 ? string.Empty : path.Substring(2);
}
if (path.EndsWith("/", StringComparison.Ordinal))
{
path += "index.js";
}
if (path.EndsWith(".js", StringComparison.OrdinalIgnoreCase) == false)
{
path += ".js";
}
_moduleAsset.AddReference(path, 0);
}
else if (this.ShouldIncludeReference(path))
{
var mainFile = _moduleResolver.Resolve(path);
_bundle.Assets.Add(new ExternalModuleAsset(path, mainFile, _bundle));
}
}
return;
}
base.Visit(node);
}
