Class JavaTarget

java.lang.Object

org.antlr.v4.codegen.Target

org.antlr.v4.codegen.target.JavaTarget

public class JavaTarget
extends Target

Field Summary

Fields

Modifier and Type	Field	Description
protected static final HashSet<String>	reservedWords
private static final ThreadLocal<org.stringtemplate.v4.STGroup>	targetTemplates	The Java target can cache the code generation templates.

Fields inherited from class Target

defaultCharValueEscape, gen

Constructor Summary

Constructors

Constructor	Description
JavaTarget(CodeGenerator gen)

Method Summary

Modifier and Type	Method	Description
Set<String>	getReservedWords()
int	getSerializedATNSegmentLimit()	Gets the maximum number of 16-bit unsigned integers that can be encoded in a single segment (a declaration in target language) of the serialized ATN.
boolean	isATNSerializedAsInts()

Methods inherited from class Target

addEscapedChar, addEscapedChar, appendUnicodeEscapedCodePoint, encodeInt16AsCharEscape, escapeChar, escapeIfNeeded, escapeWord, genFile, getAltLabelContextStructName, getBaseListenerFileName, getBaseVisitorFileName, getCodeGenerator, getElementListName, getElementName, getImplicitRuleLabel, getImplicitSetLabel, getImplicitTokenLabel, getInlineTestSetWordSize, getLanguage, getListenerFileName, getListLabel, getLoopCounter, getLoopLabel, getRecognizerFileName, getRuleFunctionContextStructName, getRuleFunctionContextStructName, getTargetCharValueEscape, getTargetStringLiteralFromANTLRStringLiteral, getTargetStringLiteralFromANTLRStringLiteral, getTargetStringLiteralFromString, getTargetStringLiteralFromString, getTemplates, getTokenTypeAsTargetLabel, getTokenTypesAsTargetLabels, getVersion, getVisitorFileName, grammarSymbolCausesIssueInGeneratedCode, loadTemplates, needsHeader, shouldUseUnicodeEscapeForCodePointInDoubleQuotedString, supportsOverloadedMethods, templatesExist, visibleGrammarSymbolCausesIssueInGeneratedCode, wantsBaseListener, wantsBaseVisitor

Methods inherited from class Object

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

Field Details

targetTemplates

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

The Java target can cache the code generation templates.

reservedWords

protected static final HashSet<String> reservedWords

Constructor Details

JavaTarget

public JavaTarget(CodeGenerator gen)

Method Details

getReservedWords

public Set<String> getReservedWords()

Specified by:

getReservedWords in class Target

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 (a declaration in target language) of the serialized ATN. E.g., in C++, a small segment length results in multiple decls like: static const int32_t serializedATNSegment1[] = { 0x7, 0x12, 0x2, 0x13, 0x7, 0x13, 0x2, 0x14, 0x7, 0x14, 0x2, 0x15, 0x7, 0x15, 0x2, 0x16, 0x7, 0x16, 0x2, 0x17, 0x7, 0x17, 0x2, 0x18, 0x7, 0x18, 0x2, 0x19, 0x7, 0x19, 0x2, 0x1a, 0x7, 0x1a, 0x2, 0x1b, 0x7, 0x1b, 0x2, 0x1c, 0x7, 0x1c, 0x2, 0x1d, 0x7, 0x1d, 0x2, 0x1e, 0x7, 0x1e, 0x2, 0x1f, 0x7, 0x1f, 0x2, 0x20, 0x7, 0x20, 0x2, 0x21, 0x7, 0x21, 0x2, 0x22, 0x7, 0x22, 0x2, 0x23, 0x7, 0x23, 0x2, 0x24, 0x7, 0x24, 0x2, 0x25, 0x7, 0x25, 0x2, 0x26, }; instead of one big one. Targets are free to ignore this like JavaScript does. This is primarily needed by Java target to limit size of any single ATN string to 65k length.

Overrides:

getSerializedATNSegmentLimit in class Target

Returns:

the serialized ATN segment limit

See Also:

• invalid reference

  SerializedATN#getSegments

isATNSerializedAsInts

public boolean isATNSerializedAsInts()

Overrides:

isATNSerializedAsInts in class Target