Examples of com.google.javascript.rhino.jstype.TernaryValue.toBoolean()

Package com.google.javascript.rhino.jstype

Class com.google.javascript.rhino.jstype.TernaryValue

Examples of com.google.javascript.rhino.jstype.TernaryValue.toBoolean()

com.google.javascript.rhino.jstype.TernaryValue.toBoolean()

          double numValue = left.getDouble();
          if (numValue == 0 || numValue == 1) {
            return n;
          }
        }
        Node replacementNode = NodeUtil.booleanNode(!leftVal.toBoolean(true));
        parent.replaceChild(n, replacementNode);
        reportCodeChange();
        return replacementNode;
      case Token.POS:
        if (NodeUtil.isNumericResult(left)) {

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    int type = n.getType();


    TernaryValue leftVal = NodeUtil.getImpureBooleanValue(left);


    if (leftVal != TernaryValue.UNKNOWN) {
      boolean lval = leftVal.toBoolean(true);


      // (TRUE || x) => TRUE (also, (3 || x) => 3)
      // (FALSE && x) => FALSE
      if (lval && type == Token.OR ||
          !lval && type == Token.AND) {

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    TernaryValue result = evaluateComparison(n.getType(), left, right);
    if (result == TernaryValue.UNKNOWN) {
      return n;
    }


    Node newNode = NodeUtil.booleanNode(result.toBoolean(true));
    n.getParent().replaceChild(n, newNode);
    reportCodeChange();


    return newNode;
  }

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          && lhsAssign.getString().equals(condition.getString())) {
        Node rhsAssign = getSimpleAssignmentValue(n);
        TernaryValue value = NodeUtil.getImpureBooleanValue(rhsAssign);
        if (value != TernaryValue.UNKNOWN) {
          Node replacementConditionNode =
              NodeUtil.booleanNode(value.toBoolean(true));
          condition.getParent().replaceChild(condition,
              replacementConditionNode);
          reportCodeChange();
        }
      }

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      branchToKeep.addChildToFront(IR.exprResult(cond).srcref(cond));
      reportCodeChange();
      cond = newCond;
    }


    boolean condTrue = condValue.toBoolean(true);
    if (n.getChildCount() == 2) {
      Preconditions.checkState(type == Token.IF);


      if (condTrue) {
        // Replace "if (true) { X }" with "X".

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        return n;  // We can't remove branches otherwise!
      }
    }


    // Transform "(a = 2) ? x =2 : y" into "a=2,x=2"
    Node branchToKeep = condValue.toBoolean(true) ? thenBody : elseBody;
    Node replacement;
    boolean condHasSideEffects = mayHaveSideEffects(cond);
    // Must detach after checking for side effects, to ensure that the parents
    // of nodes are set correctly.
    n.detachChildren();

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        return "undefined";


      case Token.NOT:
        TernaryValue child = getPureBooleanValue(n.getFirstChild());
        if (child != TernaryValue.UNKNOWN) {
          return child.toBoolean(true) ? "false" : "true"; // reversed.
        }
        break;


      case Token.ARRAYLIT:
        return arrayToString(n);

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        return null;


      case Token.NOT:
        TernaryValue child = getPureBooleanValue(n.getFirstChild());
        if (child != TernaryValue.UNKNOWN) {
          return child.toBoolean(true) ? 0.0 : 1.0; // reversed.
        }
        break;


      case Token.STRING:
        return getStringNumberValue(n.getString());

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        // the new AST is easier for other passes to handle.
        TernaryValue rightVal = NodeUtil.getPureBooleanValue(right);
        if (NodeUtil.getPureBooleanValue(right) != TernaryValue.UNKNOWN) {
          int type = n.getType();
          Node replacement = null;
          boolean rval = rightVal.toBoolean(true);


          // (x || FALSE) => x
          // (x && TRUE) => x
          if (type == Token.OR && !rval ||
              type == Token.AND && rval) {

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      default:
        // while(true) --> while(1)
        TernaryValue nVal = NodeUtil.getPureBooleanValue(n);
        if (nVal != TernaryValue.UNKNOWN) {
          boolean result = nVal.toBoolean(true);
          int equivalentResult = result ? 1 : 0;
          return maybeReplaceChildWithNumber(n, parent, equivalentResult);
        }
        // We can't do anything else currently.
        return n;

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