org.antlr.v4.codegen.target

Class JavaTarget

java.lang.Object

org.antlr.v4.codegen.Target

org.antlr.v4.codegen.target.JavaTarget

public class JavaTarget
extends Target

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
protected static class	JavaTarget.JavaStringRenderer

Field Summary

Fields

Modifier and Type	Field and Description
protected java.util.Set<java.lang.String>	badWords Avoid grammar symbols in this set to prevent conflicts in gen'd code.
protected static java.lang.String[]	javaKeywords
private static java.lang.ThreadLocal<org.stringtemplate.v4.STGroup>	targetTemplates The Java target can cache the code generation templates.

Fields inherited from class org.antlr.v4.codegen.Target

gen, targetCharValueEscape

Constructor Summary

Constructors

Constructor and Description
JavaTarget(CodeGenerator gen)

Method Summary

Modifier and Type	Method and Description
protected void	addBadWords()
protected void	appendUnicodeEscapedCodePoint(int codePoint, java.lang.StringBuilder sb) Escape the Unicode code point appropriately for this language and append the escaped value to sb.
java.util.Set<java.lang.String>	getBadWords()
int	getSerializedATNSegmentLimit() Gets the maximum number of 16-bit unsigned integers that can be encoded in a single segment of the serialized ATN.
java.lang.String	getVersion() ANTLR tool should check output templates / target are compatible with tool code generation.
protected org.stringtemplate.v4.STGroup	loadTemplates()
protected boolean	visibleGrammarSymbolCausesIssueInGeneratedCode(GrammarAST idNode)

Methods inherited from class org.antlr.v4.codegen.Target

encodeIntAsCharEscape, genFile, getAltLabelContextStructName, getBaseListenerFileName, getBaseVisitorFileName, getCodeGenerator, getElementListName, getElementName, getImplicitRuleLabel, getImplicitSetLabel, getImplicitTokenLabel, getInlineTestSetWordSize, getLanguage, getListenerFileName, getListLabel, getLoopCounter, getLoopLabel, getRecognizerFileName, getRuleFunctionContextStructName, getRuleFunctionContextStructName, getTargetStringLiteralFromANTLRStringLiteral, getTargetStringLiteralFromString, getTargetStringLiteralFromString, getTemplates, getTokenTypeAsTargetLabel, getTokenTypesAsTargetLabels, getVisitorFileName, grammarSymbolCausesIssueInGeneratedCode, needsHeader, supportsOverloadedMethods, templatesExist, wantsBaseListener, wantsBaseVisitor

Methods inherited from class java.lang.Object

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

Field Detail

targetTemplates

private static final java.lang.ThreadLocal<org.stringtemplate.v4.STGroup> targetTemplates

The Java target can cache the code generation templates.

javaKeywords

protected static final java.lang.String[] javaKeywords

badWords

protected final java.util.Set<java.lang.String> badWords

Avoid grammar symbols in this set to prevent conflicts in gen'd code.

Constructor Detail

JavaTarget

public JavaTarget(CodeGenerator gen)

Method Detail

getVersion

public java.lang.String getVersion()

Description copied from class: Target

ANTLR tool should check output templates / target are compatible with tool code generation. For now, a simple string match used on x.y of x.y.z scheme. We use a method to avoid mismatches between a template called VERSION. This value is checked against Tool.VERSION during load of templates. This additional method forces all targets 4.3 and beyond to add this method.

Specified by:

getVersion in class Target

getBadWords

public java.util.Set<java.lang.String> getBadWords()

addBadWords

protected void addBadWords()

getSerializedATNSegmentLimit

public int getSerializedATNSegmentLimit()

Description copied from class: Target

Gets the maximum number of 16-bit unsigned integers that can be encoded in a single segment of the serialized ATN.

Overrides:

getSerializedATNSegmentLimit in class Target

Returns:

the serialized ATN segment limit

See Also:

SerializedATN.getSegments()

visibleGrammarSymbolCausesIssueInGeneratedCode

protected boolean visibleGrammarSymbolCausesIssueInGeneratedCode(GrammarAST idNode)

Specified by:

visibleGrammarSymbolCausesIssueInGeneratedCode in class Target

loadTemplates

protected org.stringtemplate.v4.STGroup loadTemplates()

Overrides:

loadTemplates in class Target

appendUnicodeEscapedCodePoint

protected void appendUnicodeEscapedCodePoint(int codePoint,
                                             java.lang.StringBuilder sb)

Description copied from class: Target

Escape the Unicode code point appropriately for this language and append the escaped value to sb.

Specified by:

appendUnicodeEscapedCodePoint in class Target