Package com.google.caja.parser.js

Examples of com.google.caja.parser.js.Block

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      CharProducer cp, Criterion<Token<JsTokenType>> filt, boolean quasi)
      throws ParseException {
    JsLexer lexer = new JsLexer(cp);
    JsTokenQueue tq = new JsTokenQueue(lexer, sourceOf(cp), filt);
    Parser p = new Parser(tq, mq, quasi);
    Block b = p.parse();
    tq.expectEmpty();
    return b;
  }
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  private Scope fromProgram(Block n) {
    return Scope.fromProgram(n, mq);
  }

  public final void testSimpleDeclaredFunction() throws Exception {
    Block n = js(fromString(
        "var x = 3;" +
        "function foo() {" +
        "  var y = 3;" +
        "  z = 4;" +
        "};"));
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  private void assertFreeVariables(String code,
                                   String freeVariables,
                                   String notFreeVariables)
      throws Exception {
    Block n = js(fromString(code));
    Scope s = fromProgram(n);
    for (String v : freeVariables.split(",")) {
      assertTrue(
          "<" + v + "> should be a free variable in <" + code + ">",
          s.isImported(v));
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          s.isImported(v));
    }
  }

  public final void testAnonymousFunction() throws Exception {
    Block n = js(fromString("var x = function() {};"));
    Scope s0 = fromProgram(n);
    Scope s1 = Scope.fromFunctionConstructor(s0, findFunctionConstructor(n, null));

    assertTrue(s0.isDefined("x"));
    assertFalse(s0.isImported("x"));
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    assertTrue(s1.isDefined("x"));
    assertFalse(s1.isImported("x"));
  }

  public final void testNamedFunction() throws Exception {
    Block n = js(fromString("var x = function foo() {};"));
    Scope s0 = fromProgram(n);
    Scope s1 = Scope.fromFunctionConstructor(s0, findFunctionConstructor(n, "foo"));

    assertTrue(s0.isDefined("x"));
    assertFalse(s0.isImported("x"));
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    assertTrue(s1.isDefined("foo"));
    assertFalse(s1.isImported("foo"));
  }

  public final void testNamedFunctionSameName() throws Exception {
    Block n = js(fromString("var x = function x() {};"));
    Scope s0 = fromProgram(n);
    Scope s1 = Scope.fromFunctionConstructor(s0, findFunctionConstructor(n, "x"));

    assertTrue(s0.isDefined("x"));
    assertFalse(s0.isImported("x"));
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    assertTrue(s1.isDefined("x"));
    assertFalse(s1.isImported("x"));
  }

  public final void testFormalParams() throws Exception {
    Block n = js(fromString("function f(x) {};"));
    Scope s0 = fromProgram(n);
    Scope s1 = Scope.fromFunctionConstructor(s0, findFunctionConstructor(n, "f"));

    assertFalse(s0.isDefined("x"));
    assertTrue(s1.isDefined("x"));
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    assertFalse(s0.isDefined("x"));
    assertTrue(s1.isDefined("x"));
  }

  public final void testCatchBlocks() throws Exception {
    Block n = js(fromString("try { } catch (e) { var x; }"));

    TryStmt t = (TryStmt) n.children().get(0);
    CatchStmt c = (CatchStmt) t.children().get(1);

    Scope s0 = fromProgram(n);
    Scope s1 = Scope.fromCatchStmt(s0, c);
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    // Definition of x appears in main scope
    assertTrue(s0.isDefined("x"));
  }

  public final void testBodyOfNamedFunction() throws Exception {
    Block n = js(fromString("function foo() { var x; }"));

    Scope s0 = fromProgram(n);

    assertEquals(0, mq.getMessages().size());
    assertTrue(s0.isDefined("foo"));
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    assertEquals(0, mq.getMessages().size());
    assertTrue(s0.isDefined("foo"));
  }

  public final void testMaskedExceptionVariablesErrorA() throws Exception {
    Block n = js(fromString("var e; try { } catch (e) { var x; }"));

    TryStmt t = (TryStmt) n.children().get(1);
    CatchStmt c = (CatchStmt) t.children().get(1);

    Scope s0 = fromProgram(n);
    Scope.fromCatchStmt(s0, c);
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Related Classes of com.google.caja.parser.js.Block

  • com.google.caja.ancillary.opt.ConstantPooler
  • com.google.caja.ancillary.opt.ConstantPoolerTest
  • com.google.caja.ancillary.opt.ConstLocalOptimization
  • com.google.caja.ancillary.opt.ConstLocalOptimizationTest
  • com.google.caja.ancillary.opt.JsOptimizer
  • com.google.caja.ancillary.opt.JsOptimizerTest
  • com.google.caja.ancillary.opt.ParseTreeKB
  • com.google.caja.ancillary.opt.StatementSimplifier
  • com.google.caja.ancillary.opt.StatementSimplifierTest
  • com.google.caja.ancillary.opt.VarCollector
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