Examples of com.google.javascript.jscomp.Compiler

com.google.javascript.jscomp.Compiler
Compiler (and the other classes in this package) does the following:
- parses JS code
- checks for undefined variables
- performs optimizations such as constant folding and constants inlining
- renames variables (to short names)
- outputs compact JavaScript code
External variables are declared in 'externs' files. For instance, the file may include definitions for global javascript/browser objects such as window, document.

  }


  @Test
  public void testRenameFunction_justFunctionName() {
    String input = "obj.fnCall();";
    Compiler compiler = getCompiler(input);
    Node root = compileToScriptRoot(compiler);
    SuggestedFix fix = new SuggestedFix.Builder()
        .rename(root.getFirstChild().getFirstChild(), "renamedFnCall")
        .build();
    CodeReplacement replacement = new CodeReplacement(4, "fnCall".length(), "renamedFnCall");

View Full Code Here

  @Test
  public void testRenameFunction_entireName() {
    String fnName = "goog.dom.classes.add";
    String newFnName = "goog.dom.classlist.add";
    String input = fnName + "(foo, bar);";
    Compiler compiler = getCompiler(input);
    Node root = compileToScriptRoot(compiler);
    SuggestedFix fix = new SuggestedFix.Builder()
        .rename(root.getFirstChild().getFirstChild(), newFnName, true)
        .build();
    CodeReplacement replacement = new CodeReplacement(0, fnName.length(), newFnName);

View Full Code Here


  @Test
  public void testReplace() {
    String before = "var someRandomCode = {};\n/** some comment */\n";
    String after = "goog.foo()";
    Compiler compiler = getCompiler(before + after);
    Node root = compileToScriptRoot(compiler);
    Node newNode = IR.exprResult(IR.call(
        IR.getprop(IR.name("goog2"), IR.string("get")),
        IR.string("service")));
    SuggestedFix fix = new SuggestedFix.Builder()

View Full Code Here

  }


  @Test
  public void testAddCast() {
    String input = "obj.fnCall();";
    Compiler compiler = getCompiler(input);
    Node root = compileToScriptRoot(compiler);
    Node objNode = root.getFirstChild().getFirstChild().getFirstChild().getFirstChild();
    SuggestedFix fix = new SuggestedFix.Builder()
        .addCast(objNode, compiler, "FooBar")
        .build();

View Full Code Here

  }


  @Test
  public void testRemoveCast() {
    String input = "var x = /** @type {string} */ (y);";
    Compiler compiler = getCompiler(input);
    Node root = compileToScriptRoot(compiler);
    Node castNode = root.getFirstChild().getFirstChild().getFirstChild();
    assertTrue(castNode.isCast());


    SuggestedFix fix = new SuggestedFix.Builder()

View Full Code Here


  @Test
  public void testChangeJsDocType() {
    String before = "/** ";
    String after = "@type {Foo} */\nvar foo = new Foo()";
    Compiler compiler = getCompiler(before + after);
    Node root = compileToScriptRoot(compiler);
    SuggestedFix fix = new SuggestedFix.Builder()
        .changeJsDocType(root.getFirstChild(), compiler, "Object")
        .build();
    CodeReplacement replacement = new CodeReplacement(

View Full Code Here

  }


  @Test
  public void testChangeJsDocType2() {
    String code = "/** @type {Foo} */\nvar foo = new Foo()";
    Compiler compiler = getCompiler(code);
    Node root = compileToScriptRoot(compiler);
    Node varNode = root.getFirstChild();
    Node jsdocRoot =
        Iterables.getOnlyElement(varNode.getJSDocInfo().getTypeNodes());
    SuggestedFix fix = new SuggestedFix.Builder()

View Full Code Here


  @Test
  public void testChangeJsDocType_privateType() {
    String before = "/** ";
    String after = "@private Foo */\nvar foo = new Foo()";
    Compiler compiler = getCompiler(before + after);
    Node root = compileToScriptRoot(compiler);
    SuggestedFix fix = new SuggestedFix.Builder()
        .changeJsDocType(root.getFirstChild(), compiler, "Object")
        .build();
    CodeReplacement replacement = new CodeReplacement(

View Full Code Here


  @Test
  public void testInsertArguments() {
    String before = "goog.dom.classes.add(";
    String after = "foo, bar);";
    Compiler compiler = getCompiler(before + after);
    Node root = compileToScriptRoot(compiler);
    SuggestedFix fix = new SuggestedFix.Builder()
        .insertArguments(root.getFirstChild().getFirstChild(), 0, "baz")
        .build();
    CodeReplacement replacement = new CodeReplacement(before.length(), 0, "baz, ");

View Full Code Here


  @Test
  public void testInsertArguments_emptyArguments() {
    String before = "goog.dom.classes.add(";
    String after = ");";
    Compiler compiler = getCompiler(before + after);
    Node root = compileToScriptRoot(compiler);
    SuggestedFix fix = new SuggestedFix.Builder()
        .insertArguments(root.getFirstChild().getFirstChild(), 0, "baz")
        .build();
    CodeReplacement replacement = new CodeReplacement(before.length(), 0, "baz");

View Full Code Here

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