feat: skip nil filepath when loadPackages (#145)

* feat: add log

* feat: skip nil file path

Author: Duslia

lang/golang/parser/ctx.go

@@ -121,7 +121,7 @@ func (p *GoParser) getFileBytes(path string) []byte {
 	}
 	bs, err := os.ReadFile(path)
 	if err != nil {
-		panic(err)
+		panic(fmt.Sprintf("read file %s failed: %v", path, err))
 	}
 	p.files[path] = bs
 	return bs

lang/golang/parser/pkg.go

@@ -229,6 +229,10 @@ func (p *GoParser) loadPackages(mod *Module, dir string, pkgPath PkgPath) (err e
 				filePath = pkg.CompiledGoFiles[idx]
 			} else {
 				filePath = fset.Position(file.Pos()).Filename
+				if filePath == "" {
+					fmt.Fprintf(os.Stderr, "filename is empty, pkg: %s\n", pkg.ID)
+					continue
+				}
 			}
 			var skip bool
 			for _, exclude := range p.exclues {