org.apache.calcite.util

Class PrecedenceClimbingParser

java.lang.Object

org.apache.calcite.util.PrecedenceClimbingParser

public class PrecedenceClimbingParser
extends Object

Parser that takes a collection of tokens (atoms and operators) and groups them together according to the operators' precedence and associativity.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	PrecedenceClimbingParser.Builder Fluent helper to build a parser containing a list of tokens.
static class	PrecedenceClimbingParser.Call A token that is a call to an operator with arguments.
static class	PrecedenceClimbingParser.Op An operator token.
static class	PrecedenceClimbingParser.Result Result of a call to PrecedenceClimbingParser.Special.apply(org.apache.calcite.util.PrecedenceClimbingParser, org.apache.calcite.util.PrecedenceClimbingParser.SpecialOp).
static interface	PrecedenceClimbingParser.Special Callback defining the behavior of a special function.
static class	PrecedenceClimbingParser.SpecialOp An token corresponding to a special operator.
static class	PrecedenceClimbingParser.Token A token: either an atom, a call to an operator with arguments, or an unmatched operator.
static class	PrecedenceClimbingParser.Type Token type.

Method Summary

Modifier and Type	Method and Description
List<PrecedenceClimbingParser.Token>	all() Returns a list of all tokens.
PrecedenceClimbingParser.Token	atom(Object o)
PrecedenceClimbingParser.Call	call(PrecedenceClimbingParser.Op op, com.google.common.collect.ImmutableList<PrecedenceClimbingParser.Token> args)
PrecedenceClimbingParser	copy(int start, Predicate<PrecedenceClimbingParser.Token> predicate)
PrecedenceClimbingParser.Op	infix(Object o, int precedence, boolean left)
@Nullable PrecedenceClimbingParser.Token	parse()
void	partialParse()
PrecedenceClimbingParser.Op	postfix(Object o, int precedence)
PrecedenceClimbingParser.Op	prefix(Object o, int precedence)
String	print(PrecedenceClimbingParser.Token token)
PrecedenceClimbingParser.SpecialOp	special(Object o, int leftPrec, int rightPrec, PrecedenceClimbingParser.Special special)
String	toString()

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Method Detail

atom

public PrecedenceClimbingParser.Token atom(Object o)

call

public PrecedenceClimbingParser.Call call(PrecedenceClimbingParser.Op op,
                                          com.google.common.collect.ImmutableList<PrecedenceClimbingParser.Token> args)

infix

public PrecedenceClimbingParser.Op infix(Object o,
                                         int precedence,
                                         boolean left)

prefix

public PrecedenceClimbingParser.Op prefix(Object o,
                                          int precedence)

postfix

public PrecedenceClimbingParser.Op postfix(Object o,
                                           int precedence)

special

public PrecedenceClimbingParser.SpecialOp special(Object o,
                                                  int leftPrec,
                                                  int rightPrec,
                                                  PrecedenceClimbingParser.Special special)

parse

public @Nullable PrecedenceClimbingParser.Token parse()

partialParse

public void partialParse()

toString

public String toString()

Overrides:

toString in class Object

all

public List<PrecedenceClimbingParser.Token> all()

Returns a list of all tokens.

print

public String print(PrecedenceClimbingParser.Token token)

copy

public PrecedenceClimbingParser copy(int start,
                                     Predicate<PrecedenceClimbingParser.Token> predicate)