org.antlr.v4.codegen.target

Class Python3Target

java.lang.Object

org.antlr.v4.codegen.Target

org.antlr.v4.codegen.target.Python3Target

public class Python3Target
extends Target

Author:

Eric Vergnaud

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
protected static class	Python3Target.PythonStringRenderer

Field Summary

Fields

Modifier and Type	Field and Description
protected Set<String>	badWords Avoid grammar symbols in this set to prevent conflicts in gen'd code.
protected static String[]	python3Keywords

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

gen, targetCharValueEscape

Constructor Summary

Constructors

Constructor and Description
Python3Target(CodeGenerator gen)

Method Summary

Methods

Modifier and Type	Method and Description
protected void	addBadWords()
protected void	appendUnicodeEscapedCodePoint(int codePoint, StringBuilder sb) Escape the Unicode code point appropriately for this language and append the escaped value to sb.
Set<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.
String	getVersion() ANTLR tool should check output templates / target are compatible with tool code generation.
protected org.stringtemplate.v4.STGroup	loadTemplates()
boolean	supportsOverloadedMethods()
protected boolean	visibleGrammarSymbolCausesIssueInGeneratedCode(GrammarAST idNode)
boolean	wantsBaseListener()
boolean	wantsBaseVisitor()

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, templatesExist

Methods inherited from class java.lang.Object

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

Field Detail

python3Keywords

protected static final String[] python3Keywords

badWords

protected final Set<String> badWords

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

Constructor Detail

Python3Target

public Python3Target(CodeGenerator gen)

Method Detail

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

wantsBaseListener

public boolean wantsBaseListener()

Overrides:

wantsBaseListener in class Target

wantsBaseVisitor

public boolean wantsBaseVisitor()

Overrides:

wantsBaseVisitor in class Target

supportsOverloadedMethods

public boolean supportsOverloadedMethods()

Overrides:

supportsOverloadedMethods in class Target

getVersion

public 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 Set<String> getBadWords()

addBadWords

protected void addBadWords()

appendUnicodeEscapedCodePoint

protected void appendUnicodeEscapedCodePoint(int codePoint,
                                 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