Package io.deephaven.lang.generated

Class ChunkerMixin.PeekStream

java.lang.Object

io.deephaven.lang.generated.ChunkerMixin.PeekStream

Enclosing interface:

ChunkerMixin

public static class ChunkerMixin.PeekStream
extends java.lang.Object

A stream specialized for "peek ahead" during semantic LOOKAHEAD. Normally, lookahead will assign tokens as it is looking ahead, but this can be problematic, as it can mis-identify and assign a token, causing the real match to be missed. We instead use direct access to tokens and underlying streams, so we can manually identify which paths to take; this can cause our peekaheads to be called multiple times at the same place (since we aren't assigning tokens for quick re-lookup), but we can ameliorate that performance with some light memoization on tokens (later).

Method Summary

Modifier and Type	Method	Description
ChunkerMixin.PeekStream	assign()
io.deephaven.lang.generated.ChunkerMixin.PeekStream.EofChecker	eof(char... cs)
ChunkerMixin.PeekStream	eofOr(char... cs)
ChunkerMixin.PeekStream	exact(char... cs)
ChunkerMixin.PeekStream	exact(java.lang.String cs)
ChunkerMixin.PeekStream	identifier(java.util.Set<java.lang.Character> allowedEndings)
io.deephaven.lang.generated.ChunkerMixin.PeekStream.Checker	is(char... cs)
io.deephaven.lang.generated.ChunkerMixin.PeekStream.Checker	is(java.lang.String s)
boolean	matches(boolean peeking)
ChunkerMixin.PeekStream	whitespace()
io.deephaven.lang.generated.ChunkerMixin.PeekStream.Checker	ws()
io.deephaven.lang.generated.ChunkerMixin.PeekStream.Checker	ws(boolean required)

Methods inherited from class java.lang.Object

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

Method Detail

whitespace

public ChunkerMixin.PeekStream whitespace()

ws

public io.deephaven.lang.generated.ChunkerMixin.PeekStream.Checker ws()

ws

public io.deephaven.lang.generated.ChunkerMixin.PeekStream.Checker ws(boolean required)

identifier

public ChunkerMixin.PeekStream identifier(java.util.Set<java.lang.Character> allowedEndings)

eofOr

public ChunkerMixin.PeekStream eofOr(char... cs)

assign

public ChunkerMixin.PeekStream assign()

eof

public io.deephaven.lang.generated.ChunkerMixin.PeekStream.EofChecker eof(char... cs)

exact

public ChunkerMixin.PeekStream exact(char... cs)

exact

public ChunkerMixin.PeekStream exact(java.lang.String cs)

is

public io.deephaven.lang.generated.ChunkerMixin.PeekStream.Checker is(char... cs)

is

public io.deephaven.lang.generated.ChunkerMixin.PeekStream.Checker is(java.lang.String s)

matches

public boolean matches(boolean peeking)