com.google.javascript.rhino.jstype.TernaryValue Java Examples

The following examples show how to use com.google.javascript.rhino.jstype.TernaryValue. You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.
Example #1
Source File: Closure_60_NodeUtil_s.java    From coming with MIT License 6 votes vote down vote up 
/**
 * Copied from Rhino's ScriptRuntime
 */
static TernaryValue isStrWhiteSpaceChar(int c) {
  switch (c) {
    case '\u000B': // <VT>
      return TernaryValue.UNKNOWN;  // IE says "no", EcmaScript says "yes"
    case ' ': // <SP>
    case '\n': // <LF>
    case '\r': // <CR>
    case '\t': // <TAB>
    case '\u00A0': // <NBSP>
    case '\u000C': // <FF>
    case '\u2028': // <LS>
    case '\u2029': // <PS>
    case '\uFEFF': // <BOM>
      return TernaryValue.TRUE;
    default:
      return (Character.getType(c) == Character.SPACE_SEPARATOR)
          ? TernaryValue.TRUE : TernaryValue.FALSE;
  }
}
Example #2
Source File: NodeUtil.java    From astor with GNU General Public License v2.0 6 votes vote down vote up 
/**
 * Copied from Rhino's ScriptRuntime
 */
public static TernaryValue isStrWhiteSpaceChar(int c) {
  switch (c) {
    case '\u000B': // <VT>
      return TernaryValue.UNKNOWN;  // IE says "no", ECMAScript says "yes"
    case ' ': // <SP>
    case '\n': // <LF>
    case '\r': // <CR>
    case '\t': // <TAB>
    case '\u00A0': // <NBSP>
    case '\u000C': // <FF>
    case '\u2028': // <LS>
    case '\u2029': // <PS>
    case '\uFEFF': // <BOM>
      return TernaryValue.TRUE;
    default:
      return (Character.getType(c) == Character.SPACE_SEPARATOR)
          ? TernaryValue.TRUE : TernaryValue.FALSE;
  }
}
Example #3
Source File: Cardumen_00149_s.java    From coming with MIT License 6 votes vote down vote up 
/**
 * Copied from Rhino's ScriptRuntime
 */
public static TernaryValue isStrWhiteSpaceChar(int c) {
  switch (c) {
    case '\u000B': // <VT>
      return TernaryValue.UNKNOWN;  // IE says "no", ECMAScript says "yes"
    case ' ': // <SP>
    case '\n': // <LF>
    case '\r': // <CR>
    case '\t': // <TAB>
    case '\u00A0': // <NBSP>
    case '\u000C': // <FF>
    case '\u2028': // <LS>
    case '\u2029': // <PS>
    case '\uFEFF': // <BOM>
      return TernaryValue.TRUE;
    default:
      return (Character.getType(c) == Character.SPACE_SEPARATOR)
          ? TernaryValue.TRUE : TernaryValue.FALSE;
  }
}
Example #4
Source File: jMutRepair_003_s.java    From coming with MIT License 6 votes vote down vote up 
/**
 * Copied from Rhino's ScriptRuntime
 */
public static TernaryValue isStrWhiteSpaceChar(int c) {
  switch (c) {
    case '\u000B': // <VT>
      return TernaryValue.UNKNOWN;  // IE says "no", ECMAScript says "yes"
    case ' ': // <SP>
    case '\n': // <LF>
    case '\r': // <CR>
    case '\t': // <TAB>
    case '\u00A0': // <NBSP>
    case '\u000C': // <FF>
    case '\u2028': // <LS>
    case '\u2029': // <PS>
    case '\uFEFF': // <BOM>
      return TernaryValue.TRUE;
    default:
      return (Character.getType(c) == Character.SPACE_SEPARATOR)
          ? TernaryValue.TRUE : TernaryValue.FALSE;
  }
}
Example #5
Source File: Cardumen_0014_t.java    From coming with MIT License 6 votes vote down vote up 
/**
 * Copied from Rhino's ScriptRuntime
 */
public static TernaryValue isStrWhiteSpaceChar(int c) {
  switch (c) {
    case '\u000B': // <VT>
      return TernaryValue.UNKNOWN;  // IE says "no", ECMAScript says "yes"
    case ' ': // <SP>
    case '\n': // <LF>
    case '\r': // <CR>
    case '\t': // <TAB>
    case '\u00A0': // <NBSP>
    case '\u000C': // <FF>
    case '\u2028': // <LS>
    case '\u2029': // <PS>
    case '\uFEFF': // <BOM>
      return TernaryValue.TRUE;
    default:
      return (Character.getType(c) == Character.SPACE_SEPARATOR)
          ? TernaryValue.TRUE : TernaryValue.FALSE;
  }
}
Example #6
Source File: Closure_61_NodeUtil_s.java    From coming with MIT License 6 votes vote down vote up 
/**
 * Copied from Rhino's ScriptRuntime
 */
static TernaryValue isStrWhiteSpaceChar(int c) {
  switch (c) {
    case '\u000B': // <VT>
      return TernaryValue.UNKNOWN;  // IE says "no", EcmaScript says "yes"
    case ' ': // <SP>
    case '\n': // <LF>
    case '\r': // <CR>
    case '\t': // <TAB>
    case '\u00A0': // <NBSP>
    case '\u000C': // <FF>
    case '\u2028': // <LS>
    case '\u2029': // <PS>
    case '\uFEFF': // <BOM>
      return TernaryValue.TRUE;
    default:
      return (Character.getType(c) == Character.SPACE_SEPARATOR)
          ? TernaryValue.TRUE : TernaryValue.FALSE;
  }
}
Example #7
Source File: Cardumen_0087_s.java    From coming with MIT License 6 votes vote down vote up 
/**
 * Copied from Rhino's ScriptRuntime
 */
public static TernaryValue isStrWhiteSpaceChar(int c) {
  switch (c) {
    case '\u000B': // <VT>
      return TernaryValue.UNKNOWN;  // IE says "no", ECMAScript says "yes"
    case ' ': // <SP>
    case '\n': // <LF>
    case '\r': // <CR>
    case '\t': // <TAB>
    case '\u00A0': // <NBSP>
    case '\u000C': // <FF>
    case '\u2028': // <LS>
    case '\u2029': // <PS>
    case '\uFEFF': // <BOM>
      return TernaryValue.TRUE;
    default:
      return (Character.getType(c) == Character.SPACE_SEPARATOR)
          ? TernaryValue.TRUE : TernaryValue.FALSE;
  }
}
Example #8
Source File: jKali_003_s.java    From coming with MIT License 6 votes vote down vote up 
/**
 * Copied from Rhino's ScriptRuntime
 */
public static TernaryValue isStrWhiteSpaceChar(int c) {
  switch (c) {
    case '\u000B': // <VT>
      return TernaryValue.UNKNOWN;  // IE says "no", ECMAScript says "yes"
    case ' ': // <SP>
    case '\n': // <LF>
    case '\r': // <CR>
    case '\t': // <TAB>
    case '\u00A0': // <NBSP>
    case '\u000C': // <FF>
    case '\u2028': // <LS>
    case '\u2029': // <PS>
    case '\uFEFF': // <BOM>
      return TernaryValue.TRUE;
    default:
      return (Character.getType(c) == Character.SPACE_SEPARATOR)
          ? TernaryValue.TRUE : TernaryValue.FALSE;
  }
}
Example #9
Source File: Closure_60_NodeUtil_t.java    From coming with MIT License 6 votes vote down vote up 
/**
 * Copied from Rhino's ScriptRuntime
 */
static TernaryValue isStrWhiteSpaceChar(int c) {
  switch (c) {
    case '\u000B': // <VT>
      return TernaryValue.UNKNOWN;  // IE says "no", EcmaScript says "yes"
    case ' ': // <SP>
    case '\n': // <LF>
    case '\r': // <CR>
    case '\t': // <TAB>
    case '\u00A0': // <NBSP>
    case '\u000C': // <FF>
    case '\u2028': // <LS>
    case '\u2029': // <PS>
    case '\uFEFF': // <BOM>
      return TernaryValue.TRUE;
    default:
      return (Character.getType(c) == Character.SPACE_SEPARATOR)
          ? TernaryValue.TRUE : TernaryValue.FALSE;
  }
}
Example #10
Source File: Closure_75_NodeUtil_t.java    From coming with MIT License 6 votes vote down vote up 
/**
 * Copied from Rhino's ScriptRuntime
 */
static TernaryValue isStrWhiteSpaceChar(int c) {
  switch (c) {
    case '\u000B': // <VT>
      return TernaryValue.UNKNOWN;  // IE says "no", EcmaScript says "yes"
    case ' ': // <SP>
    case '\n': // <LF>
    case '\r': // <CR>
    case '\t': // <TAB>
    case '\u00A0': // <NBSP>
    case '\u000C': // <FF>
    case '\u2028': // <LS>
    case '\u2029': // <PS>
    case '\uFEFF': // <BOM>
      return TernaryValue.TRUE;
    default:
      return (Character.getType(c) == Character.SPACE_SEPARATOR)
          ? TernaryValue.TRUE : TernaryValue.FALSE;
  }
}
Example #11
Source File: jMutRepair_003_s.java    From coming with MIT License 5 votes vote down vote up 
static String trimJsWhiteSpace(String s) {
  int start = 0;
  int end = s.length();
  while (end > 0
      && isStrWhiteSpaceChar(s.charAt(end - 1)) == TernaryValue.TRUE) {
    end--;
  }
  while (start < end
      && isStrWhiteSpaceChar(s.charAt(start)) == TernaryValue.TRUE) {
    start++;
  }
  return s.substring(start, end);
}
Example #12
Source File: Closure_23_PeepholeFoldConstants_t.java    From coming with MIT License 5 votes vote down vote up 
/**
 * @return Translate NOT expressions into TRUE or FALSE when possible.
 */
private int getNormalizedNodeType(Node n) {
  int type = n.getType();
  if (type == Token.NOT) {
    TernaryValue value = NodeUtil.getPureBooleanValue(n);
    switch (value) {
      case TRUE:
        return Token.TRUE;
      case FALSE:
        return Token.FALSE;
    }
  }
  return type;
}
Example #13
Source File: Closure_60_NodeUtil_s.java    From coming with MIT License 5 votes vote down vote up 
static String trimJsWhiteSpace(String s) {
  int start = 0;
  int end = s.length();
  while (end > 0
      && isStrWhiteSpaceChar(s.charAt(end - 1)) == TernaryValue.TRUE) {
    end--;
  }
  while (start < end
      && isStrWhiteSpaceChar(s.charAt(start)) == TernaryValue.TRUE) {
    start++;
  }
  return s.substring(start, end);
}
Example #14
Source File: Cardumen_0014_t.java    From coming with MIT License 5 votes vote down vote up 
static String trimJsWhiteSpace(String s) {
  int start = 0;
  int end = s.length();
  while (end > 0
      && isStrWhiteSpaceChar(s.charAt(end - 1)) == TernaryValue.TRUE) {
    end--;
  }
  while (start < end
      && isStrWhiteSpaceChar(s.charAt(start)) == TernaryValue.TRUE) {
    start++;
  }
  return s.substring(start, end);
}
Example #15
Source File: Closure_23_PeepholeFoldConstants_t.java    From coming with MIT License 5 votes vote down vote up 
/**
 * Try to fold a AND/OR node.
 */
private Node tryFoldAndOr(Node n, Node left, Node right) {
  Node parent = n.getParent();

  Node result = null;

  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) {
      result = left;

    } else if (!mayHaveSideEffects(left)) {
      // (FALSE || x) => x
      // (TRUE && x) => x
      result = right;
    }
  }

  // Note: Right hand side folding is handled by
  // PeepholeSubstituteAlternateSyntax#tryMinimizeCondition

  if (result != null) {
    // Fold it!
    n.removeChild(result);
    parent.replaceChild(n, result);
    reportCodeChange();

    return result;
  } else {
    return n;
  }
}
Example #16
Source File: PeepholeRemoveDeadCode.java    From astor with GNU General Public License v2.0 5 votes vote down vote up 
/**
 * Remove always true loop conditions.
 */
private void tryFoldForCondition(Node forCondition) {
  if (NodeUtil.getPureBooleanValue(forCondition) == TernaryValue.TRUE) {
    forCondition.getParent().replaceChild(forCondition,
        IR.empty());
    reportCodeChange();
  }
}
Example #17
Source File: Closure_23_PeepholeFoldConstants_t.java    From coming with MIT License 5 votes vote down vote up 
/** Returns whether two JS strings are equal. */
private TernaryValue areStringsEqual(String a, String b) {
  // In JS, browsers parse \v differently. So do not consider strings
  // equal if one contains \v.
  if (a.indexOf('\u000B') != -1 ||
      b.indexOf('\u000B') != -1) {
    return TernaryValue.UNKNOWN;
  } else {
    return a.equals(b) ? TernaryValue.TRUE : TernaryValue.FALSE;
  }
}
Example #18
Source File: Closure_94_NodeUtil_t.java    From coming with MIT License 5 votes vote down vote up 
/**
 * Gets the boolean value of a node that represents a literal. This method
 * effectively emulates the <code>Boolean()</code> JavaScript cast function.
 */
static TernaryValue getBooleanValue(Node n) {
  switch (n.getType()) {
    case Token.STRING:
      return TernaryValue.forBoolean(n.getString().length() > 0);

    case Token.NUMBER:
      return TernaryValue.forBoolean(n.getDouble() != 0);

    case Token.NULL:
    case Token.FALSE:
    case Token.VOID:
      return TernaryValue.FALSE;

    case Token.NAME:
      String name = n.getString();
      if ("undefined".equals(name)
          || "NaN".equals(name)) {
        // We assume here that programs don't change the value of the keyword
        // undefined to something other than the value undefined.
        return TernaryValue.FALSE;
      } else if ("Infinity".equals(name)) {
        return TernaryValue.TRUE;
      }
      break;

    case Token.TRUE:
    case Token.ARRAYLIT:
    case Token.OBJECTLIT:
    case Token.REGEXP:
      return TernaryValue.TRUE;
  }

  return TernaryValue.UNKNOWN;
}
Example #19
Source File: Closure_86_NodeUtil_s.java    From coming with MIT License 5 votes vote down vote up 
/**
 * Gets the boolean value of a node that represents a literal. This method
 * effectively emulates the <code>Boolean()</code> JavaScript cast function.
 */
static TernaryValue getBooleanValue(Node n) {
  switch (n.getType()) {
    case Token.STRING:
      return TernaryValue.forBoolean(n.getString().length() > 0);

    case Token.NUMBER:
      return TernaryValue.forBoolean(n.getDouble() != 0);

    case Token.NULL:
    case Token.FALSE:
    case Token.VOID:
      return TernaryValue.FALSE;

    case Token.NAME:
      String name = n.getString();
      if ("undefined".equals(name)
          || "NaN".equals(name)) {
        // We assume here that programs don't change the value of the keyword
        // undefined to something other than the value undefined.
        return TernaryValue.FALSE;
      } else if ("Infinity".equals(name)) {
        return TernaryValue.TRUE;
      }
      break;

    case Token.TRUE:
    case Token.ARRAYLIT:
    case Token.OBJECTLIT:
    case Token.REGEXP:
      return TernaryValue.TRUE;
  }

  return TernaryValue.UNKNOWN;
}
Example #20
Source File: jMutRepair_003_t.java    From coming with MIT License 5 votes vote down vote up 
static String trimJsWhiteSpace(String s) {
  int start = 0;
  int end = s.length();
  while (end > 0
      && isStrWhiteSpaceChar(s.charAt(end - 1)) == TernaryValue.TRUE) {
    end--;
  }
  while (start < end
      && isStrWhiteSpaceChar(s.charAt(start)) == TernaryValue.TRUE) {
    start++;
  }
  return s.substring(start, end);
}
Example #21
Source File: Closure_78_PeepholeFoldConstants_t.java    From coming with MIT License 5 votes vote down vote up 
/**
 * Try to fold a AND/OR node.
 */
private Node tryFoldAndOr(Node n, Node left, Node right) {
  Node parent = n.getParent();

  Node result = null;

  int type = n.getType();

  TernaryValue leftVal = NodeUtil.getBooleanValue(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) {
      result = left;

    } else {
      // (FALSE || x) => x
      // (TRUE && x) => x
      result = right;
    }
  }

  // Note: Right hand side folding is handled by
  // PeepholeSubstituteAlternateSyntax#tryMinimizeCondition

  if (result != null) {
    // Fold it!
    n.removeChild(result);
    parent.replaceChild(n, result);
    reportCodeChange();

    return result;
  } else {
    return n;
  }
}
Example #22
Source File: PeepholeFoldConstants.java    From astor with GNU General Public License v2.0 5 votes vote down vote up 
/**
 * Try to fold a AND/OR node.
 */
private Node tryFoldAndOr(Node n, Node left, Node right) {
  Node parent = n.getParent();

  Node result = null;

  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) {
      result = left;

    } else if (!mayHaveSideEffects(left)) {
      // (FALSE || x) => x
      // (TRUE && x) => x
      result = right;
    }
  }

  // Note: Right hand side folding is handled by
  // PeepholeSubstituteAlternateSyntax#tryMinimizeCondition

  if (result != null) {
    // Fold it!
    n.removeChild(result);
    parent.replaceChild(n, result);
    reportCodeChange();

    return result;
  } else {
    return n;
  }
}
Example #23
Source File: Closure_74_PeepholeFoldConstants_t.java    From coming with MIT License 5 votes vote down vote up 
/**
 * @return Translate NOT expressions into TRUE or FALSE when possible.
 */
private int getNormalizedNodeType(Node n) {
  int type = n.getType();
  if (type == Token.NOT) {
    TernaryValue value = NodeUtil.getPureBooleanValue(n);
    switch (value) {
      case TRUE:
        return Token.TRUE;
      case FALSE:
        return Token.FALSE;
    }
  }
  return type;
}
Example #24
Source File: Closure_126_MinimizeExitPoints_t.java    From coming with MIT License 5 votes vote down vote up 
@Override
public void visit(NodeTraversal t, Node n, Node parent) {
  switch (n.getType()) {
    case Token.LABEL:
      tryMinimizeExits(
          n.getLastChild(), Token.BREAK, n.getFirstChild().getString());
      break;

    case Token.FOR:
    case Token.WHILE:
      tryMinimizeExits(NodeUtil.getLoopCodeBlock(n), Token.CONTINUE, null);
      break;

    case Token.DO:
      tryMinimizeExits(NodeUtil.getLoopCodeBlock(n), Token.CONTINUE, null);

      Node cond = NodeUtil.getConditionExpression(n);
      if (NodeUtil.getImpureBooleanValue(cond) == TernaryValue.FALSE) {
        // Normally, we wouldn't be able to optimize BREAKs inside a loop
        // but as we know the condition will always false, we can treat them
        // as we would a CONTINUE.
        tryMinimizeExits(n.getFirstChild(), Token.BREAK, null);
      }
      break;

    case Token.FUNCTION:
      tryMinimizeExits(n.getLastChild(), Token.RETURN, null);
      break;
  }
}
Example #25
Source File: Cardumen_0087_t.java    From coming with MIT License 5 votes vote down vote up 
static String trimJsWhiteSpace(String s) {
  int start = 0;
  int end = s.length();
  while (end > 0
      && isStrWhiteSpaceChar(s.charAt(end - 1)) == TernaryValue.TRUE) {
    end--;
  }
  while (start < end
      && isStrWhiteSpaceChar(s.charAt(start)) == TernaryValue.TRUE) {
    start++;
  }
  return s.substring(start, end);
}
Example #26
Source File: Nopol2017_0019_s.java    From coming with MIT License 5 votes vote down vote up 
@Override
public void visit(NodeTraversal t, Node n, Node parent) {
  switch (n.getType()) {
    case Token.LABEL:
      tryMinimizeExits(
          n.getLastChild(), Token.BREAK, n.getFirstChild().getString());
      break;

    case Token.FOR:
    case Token.WHILE:
      tryMinimizeExits(NodeUtil.getLoopCodeBlock(n), Token.CONTINUE, null);
      break;

    case Token.DO:
      tryMinimizeExits(NodeUtil.getLoopCodeBlock(n), Token.CONTINUE, null);

      Node cond = NodeUtil.getConditionExpression(n);
      if (NodeUtil.getImpureBooleanValue(cond) == TernaryValue.FALSE) {
        // Normally, we wouldn't be able to optimize BREAKs inside a loop
        // but as we know the condition will always false, we can treat them
        // as we would a CONTINUE.
        tryMinimizeExits(n.getFirstChild(), Token.BREAK, null);
      }
      break;

    case Token.FUNCTION:
      tryMinimizeExits(n.getLastChild(), Token.RETURN, null);
      break;
  }
}
Example #27
Source File: Nopol2017_0019_t.java    From coming with MIT License 5 votes vote down vote up 
@Override
public void visit(NodeTraversal t, Node n, Node parent) {
  switch (n.getType()) {
    case Token.LABEL:
      tryMinimizeExits(
          n.getLastChild(), Token.BREAK, n.getFirstChild().getString());
      break;

    case Token.FOR:
    case Token.WHILE:
      tryMinimizeExits(NodeUtil.getLoopCodeBlock(n), Token.CONTINUE, null);
      break;

    case Token.DO:
      tryMinimizeExits(NodeUtil.getLoopCodeBlock(n), Token.CONTINUE, null);

      Node cond = NodeUtil.getConditionExpression(n);
      if (NodeUtil.getImpureBooleanValue(cond) == TernaryValue.FALSE) {
        // Normally, we wouldn't be able to optimize BREAKs inside a loop
        // but as we know the condition will always false, we can treat them
        // as we would a CONTINUE.
        tryMinimizeExits(n.getFirstChild(), Token.BREAK, null);
      }
      break;

    case Token.FUNCTION:
      tryMinimizeExits(n.getLastChild(), Token.RETURN, null);
      break;
  }
}
Example #28
Source File: Closure_10_NodeUtil_s.java    From coming with MIT License 5 votes vote down vote up 
static String trimJsWhiteSpace(String s) {
  int start = 0;
  int end = s.length();
  while (end > 0
      && isStrWhiteSpaceChar(s.charAt(end - 1)) == TernaryValue.TRUE) {
    end--;
  }
  while (start < end
      && isStrWhiteSpaceChar(s.charAt(start)) == TernaryValue.TRUE) {
    start++;
  }
  return s.substring(start, end);
}
Example #29
Source File: Closure_60_NodeUtil_t.java    From coming with MIT License 5 votes vote down vote up 
static String trimJsWhiteSpace(String s) {
  int start = 0;
  int end = s.length();
  while (end > 0
      && isStrWhiteSpaceChar(s.charAt(end - 1)) == TernaryValue.TRUE) {
    end--;
  }
  while (start < end
      && isStrWhiteSpaceChar(s.charAt(start)) == TernaryValue.TRUE) {
    start++;
  }
  return s.substring(start, end);
}
Example #30
Source File: jKali_003_t.java    From coming with MIT License 5 votes vote down vote up 
static String trimJsWhiteSpace(String s) {
  int start = 0;
  int end = s.length();
  while (end > 0
      && isStrWhiteSpaceChar(s.charAt(end - 1)) == TernaryValue.TRUE) {
    end--;
  }
  while (start < end
      && isStrWhiteSpaceChar(s.charAt(start)) == TernaryValue.TRUE) {
    start++;
  }
  return s.substring(start, end);
}