org.antlr.v4.codegen.model

Class Choice

java.lang.Object

org.antlr.v4.codegen.model.OutputModelObject

org.antlr.v4.codegen.model.SrcOp

org.antlr.v4.codegen.model.RuleElement

org.antlr.v4.codegen.model.Choice

Direct Known Subclasses:

AltBlock, LL1Choice, LL1Loop, Loop

public abstract class Choice
extends RuleElement

The class hierarchy underneath SrcOp is pretty deep but makes sense that, for example LL1StarBlock is a kind of LL1Loop which is a kind of Choice. The problem is it's impossible to figure out how to construct one of these deeply nested objects because of the long super constructor call chain. Instead, I decided to in-line all of this and then look for opportunities to re-factor code into functions. It makes sense to use a class hierarchy to share data fields, but I don't think it makes sense to factor code using super constructors because it has too much work to do.

Field Summary

Fields

Modifier and Type	Field and Description
List<CodeBlockForAlt>	alts
int	decision
Decl	label
List<SrcOp>	preamble

Fields inherited from class org.antlr.v4.codegen.model.RuleElement

stateNumber

Fields inherited from class org.antlr.v4.codegen.model.SrcOp

enclosingBlock, enclosingRuleRunction, uniqueID

Fields inherited from class org.antlr.v4.codegen.model.OutputModelObject

ast, factory

Constructor Summary

Constructors

Constructor and Description
Choice(OutputModelFactory factory, GrammarAST blkOrEbnfRootAST, List<CodeBlockForAlt> alts)

Method Summary

Methods

Modifier and Type	Method and Description
TestSetInline	addCodeForLookaheadTempVar(IntervalSet look)
void	addPreambleOp(SrcOp op)
List<String[]>	getAltLookaheadAsStringLists(IntervalSet[] altLookSets)
ThrowNoViableAlt	getThrowNoViableAlt(OutputModelFactory factory, GrammarAST blkAST, IntervalSet expecting)

Methods inherited from class org.antlr.v4.codegen.model.SrcOp

getContextName, getOuterMostAltCodeBlock

Methods inherited from class java.lang.Object

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

Field Detail

decision

public int decision

label

public Decl label

alts

public List<CodeBlockForAlt> alts

preamble

public List<SrcOp> preamble

Constructor Detail

Choice

public Choice(OutputModelFactory factory,
      GrammarAST blkOrEbnfRootAST,
      List<CodeBlockForAlt> alts)

Method Detail

addPreambleOp

public void addPreambleOp(SrcOp op)

getAltLookaheadAsStringLists

public List<String[]> getAltLookaheadAsStringLists(IntervalSet[] altLookSets)

addCodeForLookaheadTempVar

public TestSetInline addCodeForLookaheadTempVar(IntervalSet look)

getThrowNoViableAlt

public ThrowNoViableAlt getThrowNoViableAlt(OutputModelFactory factory,
                                   GrammarAST blkAST,
                                   IntervalSet expecting)