org.antlr.v4.analysis

Class LeftFactoringRuleTransformer

java.lang.Object

org.antlr.v4.analysis.LeftFactoringRuleTransformer

public class LeftFactoringRuleTransformer
extends Object

Author:

Sam Harwell

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
protected static class	LeftFactoringRuleTransformer.DecisionFactorMode
protected static class	LeftFactoringRuleTransformer.RuleVariants

Field Summary

Fields

Modifier and Type	Field and Description
GrammarRootAST	_ast
Grammar	_g
Map<String,Rule>	_rules
Tool	_tool
static String	LEFTFACTOR
static String	SUPPRESS_ACCESSOR

Constructor Summary

Constructors

Constructor and Description
LeftFactoringRuleTransformer(GrammarRootAST ast, Map<String,Rule> rules, Grammar g)

Method Summary

Modifier and Type	Method and Description
protected LeftFactoringRuleTransformer.RuleVariants	createLeftFactoredRuleVariant(Rule rule, String factoredElement)
protected GrammarAST	expandOptionalQuantifiersForAlt(GrammarAST alt)
protected boolean	expandOptionalQuantifiersForBlock(GrammarAST block, boolean variant)
protected GrammarAST	translateLeftFactoredAlternative(GrammarAST alternative, String factoredRule, boolean variant, LeftFactoringRuleTransformer.DecisionFactorMode mode, boolean includeFactoredElement)
protected boolean	translateLeftFactoredDecision(GrammarAST block, String factoredRule, boolean variant, LeftFactoringRuleTransformer.DecisionFactorMode mode, boolean includeFactoredElement)
protected GrammarAST	translateLeftFactoredElement(GrammarAST element, String factoredRule, boolean variant, LeftFactoringRuleTransformer.DecisionFactorMode mode, boolean includeFactoredElement)
void	translateLeftFactoredRules()

Methods inherited from class java.lang.Object

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

Field Detail

LEFTFACTOR

public static final String LEFTFACTOR

See Also:

Constant Field Values

SUPPRESS_ACCESSOR

public static final String SUPPRESS_ACCESSOR

See Also:

Constant Field Values

_ast

public GrammarRootAST _ast

_rules

public Map<String,Rule> _rules

_g

public Grammar _g

_tool

public Tool _tool

Constructor Detail

LeftFactoringRuleTransformer

public LeftFactoringRuleTransformer(@NotNull
                                    GrammarRootAST ast,
                                    @NotNull
                                    Map<String,Rule> rules,
                                    @NotNull
                                    Grammar g)

Method Detail

translateLeftFactoredRules

public void translateLeftFactoredRules()

expandOptionalQuantifiersForBlock

protected boolean expandOptionalQuantifiersForBlock(GrammarAST block,
                                                    boolean variant)

expandOptionalQuantifiersForAlt

protected GrammarAST expandOptionalQuantifiersForAlt(GrammarAST alt)

translateLeftFactoredDecision

protected boolean translateLeftFactoredDecision(GrammarAST block,
                                                String factoredRule,
                                                boolean variant,
                                                LeftFactoringRuleTransformer.DecisionFactorMode mode,
                                                boolean includeFactoredElement)

translateLeftFactoredAlternative

protected GrammarAST translateLeftFactoredAlternative(GrammarAST alternative,
                                                      String factoredRule,
                                                      boolean variant,
                                                      LeftFactoringRuleTransformer.DecisionFactorMode mode,
                                                      boolean includeFactoredElement)

translateLeftFactoredElement

protected GrammarAST translateLeftFactoredElement(GrammarAST element,
                                                  String factoredRule,
                                                  boolean variant,
                                                  LeftFactoringRuleTransformer.DecisionFactorMode mode,
                                                  boolean includeFactoredElement)

createLeftFactoredRuleVariant

protected LeftFactoringRuleTransformer.RuleVariants createLeftFactoredRuleVariant(Rule rule,
                                                                                  String factoredElement)