Example usage for org.antlr.v4.runtime.misc Pair Pair

Introduction

In this page you can find the example usage for org.antlr.v4.runtime.misc Pair Pair.

Prototype

public Pair(A a, B b)

Source Link

Usage

From source file:com.sample.JavaErrorStrategy.java

License:BSD License

/**
 * Conjure up a missing token during error recovery.
 *
 * The recognizer attempts to recover from single missing symbols. But,
 * actions might refer to that missing symbol. For example, x=ID {f($x);}.
 * The action clearly assumes that there has been an identifier matched
 * previously and that $x points at that token. If that token is missing,
 * but the next token in the stream is what we want we assume that this
 * token is missing and we keep going. Because we have to return some token
 * to replace the missing token, we have to conjure one up. This method
 * gives the user control over the tokens returned for missing tokens.
 * Mostly, you will want to create something special for identifier tokens.
 * For literals such as '{' and ',', the default action in the parser or
 * tree parser works. It simply creates a CommonToken of the appropriate
 * type. The text will be the token. If you change what tokens must be
 * created by the lexer, override this method to create the appropriate
 * tokens.//  www  . j av a  2s . c  om
 */
@NotNull
protected Token getMissingSymbol(@NotNull Parser recognizer) {
    Token currentSymbol = recognizer.getCurrentToken();
    IntervalSet expecting = getExpectedTokens(recognizer);
    int expectedTokenType = expecting.getMinElement(); // get any element
    String tokenText;
    if (expectedTokenType == Token.EOF)
        tokenText = "<missing EOF>";
    else
        tokenText = "<missing " + recognizer.getTokenNames()[expectedTokenType] + ">";
    Token current = currentSymbol;
    Token lookback = recognizer.getInputStream().LT(-1);
    if (current.getType() == Token.EOF && lookback != null) {
        current = lookback;
    }
    return recognizer.getTokenFactory()
            .create(new Pair<TokenSource, CharStream>(current.getTokenSource(),
                    current.getTokenSource().getInputStream()), expectedTokenType, tokenText,
                    Token.DEFAULT_CHANNEL, -1, -1, current.getLine(), current.getCharPositionInLine());
}

From source file:de.vandermeer.skb.commons.collections.FlatMultiTable.java

License:Apache License

@Override
public boolean columnValue(Object row, Object column, E value) {
    String key = Table.tableJoiner.transform(new Pair<Object, Object>(row, column)).toString();
    if (this.sval.containsKey(key)) {
        if (this.sval.get(key) != null) {
            this.sval.get(key).add(value);
        } else {/*  w ww  .  j ava  2s  .  c om*/
            ComCollection<E> coll = new ComCollection<E>();
            coll.add(value);
            this.sval.put(key, coll);
        }
        return true;
    }
    return false;
}

From source file:de.vandermeer.skb.commons.collections.FlatMultiTable.java

License:Apache License

@Override
public boolean contains(Object row) {
    return this.sval.containsKey(Table.tableJoiner.transform(new Pair<Object, Object>(null, row)).toString());
}

From source file:de.vandermeer.skb.commons.collections.FlatMultiTable.java

License:Apache License

@Override
public boolean contains(Object row, Object column) {
    return this.sval.containsKey(Table.tableJoiner.transform(new Pair<Object, Object>(row, column)).toString());
}

From source file:de.vandermeer.skb.commons.collections.FlatMultiTable.java

License:Apache License

@Override
public Map<String, E> get(Object row) {
    Map<String, E> ret = new HashMap<String, E>();
    Collection<String> columns = IsPath.GET_SUB_PATHS(Table.defaulSeparator,
            Table.tableJoiner.transform(new Pair<Object, Object>(null, row)), this.sval.keySet());
    for (String s : columns) {
        if (this.sval.get(s) == null) {
            ret.put(s, null);/*w  ww .ja va 2  s  .c  om*/
        } else {
            ret.put(s, this.sval.get(s).getFirst());
        }
    }
    return ret;
}

From source file:de.vandermeer.skb.commons.collections.FlatMultiTable.java

License:Apache License

@Override
public E get(Object row, Object column) {
    ComCollection<E> coll = this.sval
            .get(Table.tableJoiner.transform(new Pair<Object, Object>(row, column)).toString());
    if (coll != null) {
        return coll.getFirst();
    }/*from w w w  . j a v  a  2s  .c  o  m*/
    return null;
}

From source file:de.vandermeer.skb.commons.collections.FlatMultiTable.java

License:Apache License

/**
 * Returns the values of a cell identified by row and column
 * @param row row of the cell/*w ww. j  av a2  s.  co  m*/
 * @param column column of the cell
 * @return collection of values of the cell
 */
public Collection<E> getMulti(Object row, Object column) {
    return this.sval.get(Table.tableJoiner.transform(new Pair<Object, Object>(row, column)).toString());
}

From source file:de.vandermeer.skb.commons.collections.FlatMultiTable.java

License:Apache License

/**
 * Returns a complete row will all columns and asociated values.
 * @param row row identifier//from www  .j ava 2 s.co m
 * @return complete row
 */
public Map<String, ComCollection<E>> getRow(Object row) {
    Map<String, ComCollection<E>> ret = new HashMap<String, ComCollection<E>>();
    Collection<String> columns = IsPath.GET_SUB_PATHS(Table.defaulSeparator,
            Table.tableJoiner.transform(new Pair<Object, Object>(null, row)), this.sval.keySet());
    for (String s : columns) {
        ret.put(s, this.sval.get(s));
    }
    return ret;
}

From source file:de.vandermeer.skb.commons.collections.FlatMultiTree.java

License:Apache License

@Override
public boolean containsNode(Object fqpn) {
    return this.sval.containsKey(Tree.treeJoiner.transform(new Pair<Object, Object>(null, fqpn)).toString());
}

From source file:de.vandermeer.skb.commons.collections.FlatMultiTree.java

License:Apache License

@Override
public boolean containsNode(Object path, Object name) {
    return this.sval.containsKey(Tree.treeJoiner.transform(new Pair<Object, Object>(path, name)).toString());
}