Package org.antlr.v4.codegen.target
Class DartTarget
- java.lang.Object
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- org.antlr.v4.codegen.Target
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- org.antlr.v4.codegen.target.DartTarget
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public class DartTarget extends Target
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Field Summary
Fields Modifier and Type Field Description protected Set<String>
badWords
protected static String[]
javaKeywords
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Fields inherited from class org.antlr.v4.codegen.Target
gen, targetCharValueEscape
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Constructor Summary
Constructors Constructor Description DartTarget(CodeGenerator gen)
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method 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 tosb
.String
encodeIntAsCharEscape(int v)
Assume 16-bit charSet<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
getTargetStringLiteralFromANTLRStringLiteral(CodeGenerator generator, String literal, boolean addQuotes)
Convert from an ANTLR string literal found in a grammar file to an equivalent string literal in the target language.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)
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Methods inherited from class org.antlr.v4.codegen.Target
genFile, getAltLabelContextStructName, getBaseListenerFileName, getBaseVisitorFileName, getCodeGenerator, getElementListName, getElementName, getImplicitRuleLabel, getImplicitSetLabel, getImplicitTokenLabel, getInlineTestSetWordSize, getLanguage, getListenerFileName, getListLabel, getLoopCounter, getLoopLabel, getRecognizerFileName, getRuleFunctionContextStructName, getRuleFunctionContextStructName, getTargetStringLiteralFromString, getTargetStringLiteralFromString, getTemplates, getTokenTypeAsTargetLabel, getTokenTypesAsTargetLabels, getVisitorFileName, grammarSymbolCausesIssueInGeneratedCode, needsHeader, shouldUseUnicodeEscapeForCodePointInDoubleQuotedString, supportsOverloadedMethods, templatesExist, wantsBaseListener, wantsBaseVisitor
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Constructor Detail
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DartTarget
public DartTarget(CodeGenerator gen)
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Method Detail
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getTargetStringLiteralFromANTLRStringLiteral
public String getTargetStringLiteralFromANTLRStringLiteral(CodeGenerator generator, String literal, boolean addQuotes)
Description copied from class:Target
Convert from an ANTLR string literal found in a grammar file to an equivalent string literal in the target language.
For Java, this is the translation
'a\n"'
→"a\n\""
. Expect single quotes around the incoming literal. Just flip the quotes and replace double quotes with\"
.Note that we have decided to allow people to use '\"' without penalty, so we must build the target string in a loop as
String.replace(char, char)
cannot handle both\"
and"
without a lot of messing around.- Overrides:
getTargetStringLiteralFromANTLRStringLiteral
in classTarget
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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 classTarget
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addBadWords
protected void addBadWords()
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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 classTarget
- Returns:
- the serialized ATN segment limit
- See Also:
SerializedATN.getSegments()
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visibleGrammarSymbolCausesIssueInGeneratedCode
protected boolean visibleGrammarSymbolCausesIssueInGeneratedCode(GrammarAST idNode)
- Specified by:
visibleGrammarSymbolCausesIssueInGeneratedCode
in classTarget
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loadTemplates
protected org.stringtemplate.v4.STGroup loadTemplates()
- Overrides:
loadTemplates
in classTarget
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encodeIntAsCharEscape
public String encodeIntAsCharEscape(int v)
Description copied from class:Target
Assume 16-bit char- Overrides:
encodeIntAsCharEscape
in classTarget
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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 tosb
.- Specified by:
appendUnicodeEscapedCodePoint
in classTarget
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