Method Minify

js/js.go:40–66

Minify minifies JS data, it reads from r and writes to w.

(_ *minify.M, w io.Writer, r io.Reader, params map[string]string)

// Minify minifies JS data, it reads from r and writes to w.
func (o *Minifier) Minify(_ *minify.M, w io.Writer, r io.Reader, params map[string]string) error {
	z := parse.NewInput(r)
	ast, err := js.Parse(z, js.Options{
		WhileToFor: true,
		Inline:     params != nil && params["inline"] == "1",
	})
	if err != nil {
		return err
	}

	m := &jsMinifier{
		o:       o,
		w:       w,
		renamer: newRenamer(!o.KeepVarNames, !o.useAlphabetVarNames),
	}
	m.hoistVars(&ast.BlockStmt)
	ast.List = optimizeStmtList(ast.List, functionBlock)
	for _, item := range ast.List {
		m.writeSemicolon()
		m.minifyStmt(item)
	}

	if _, err := w.Write(nil); err != nil {
		return err
	}
	return nil
}

type expectExpr int