javascript - example_test.go

     1  package scope_test
     2  
     3  import (
     4  	"fmt"
     5  
     6  	"vimagination.zapto.org/javascript"
     7  	"vimagination.zapto.org/javascript/scope"
     8  	"vimagination.zapto.org/parser"
     9  )
    10  
    11  func Example() {
    12  	src := `let a = 1; console.log(a)`
    13  
    14  	tk := parser.NewStringTokeniser(src)
    15  
    16  	ast, err := javascript.ParseModule(&tk)
    17  	if err != nil {
    18  		fmt.Println(err)
    19  
    20  		return
    21  	}
    22  
    23  	s, err := scope.Build(ast, nil)
    24  	if err != nil {
    25  		fmt.Println(err)
    26  
    27  		return
    28  	}
    29  
    30  	s.Rename("a", "b")
    31  
    32  	fmt.Printf("%s", ast)
    33  
    34  	// Output:
    35  	// let b = 1;
    36  	//
    37  	// console.log(b);
    38  }
    39