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package bjc.utils.parserutils.pratt.commands;
import bjc.utils.data.ITree;
import bjc.utils.data.Tree;
import bjc.utils.parserutils.ParserException;
import bjc.utils.parserutils.pratt.ParserContext;
import bjc.utils.parserutils.pratt.Token;
public class GroupingCommand<K, V, C> extends AbstractInitialCommand<K, V, C> {
private K term;
private Token<K, V> mark;
private int inner;
public GroupingCommand(int innerPrec, K terminator, Token<K, V> marker) {
inner = innerPrec;
term = terminator;
mark = marker;
}
@SuppressWarnings("unchecked")
@Override
protected ITree<Token<K, V>> intNullDenotation(Token<K, V> operator, ParserContext<K, V, C> ctx)
throws ParserException {
ITree<Token<K, V>> opr = ctx.parse.parseExpression(inner, ctx.tokens, ctx.state, false);
ctx.tokens.expect(term);
return new Tree<>(mark, opr);
}
}
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