Package jflex.generator
Class Emitter
- java.lang.Object
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- jflex.generator.Emitter
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public final class Emitter extends java.lang.Object
This class manages the actual code generation, putting the scanner together, filling in skeleton sections etc.Table compression, String packing etc. is also done here.
- Version:
- JFlex 1.9.1
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Field Summary
Fields Modifier and Type Field Description private java.util.Map<Action,java.lang.Integer>
actionTable
maps actions to their switch labelprivate boolean[]
colKilled
private int[]
colMap
private DFA
dfa
private java.lang.String
eofCode
private java.lang.String
eofThrow
private static int
FINAL
private java.io.File
inputFile
private boolean[]
isTransition
private static int
NOLOOK
private int
numCols
private java.io.PrintWriter
out
(package private) java.lang.String
outputFileName
private LexParse
parser
private boolean[]
rowKilled
private int[]
rowMap
private AbstractLexScan
scanner
private Skeleton
skel
private java.lang.String
visibility
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Method Summary
All Methods Static Methods Instance Methods Concrete Methods Modifier and Type Method Description void
emit()
Main Emitter method.private void
emitActions()
private void
emitActionTable()
emitActionTable.private void
emitAttributes()
private void
emitCharMapArrayUnPacked()
private void
emitCharMapTables()
Emits two-level character translation tables.private void
emitClassCode()
private void
emitClassName()
private void
emitCMapAccess()
private void
emitConstructorDecl()
private void
emitConstructorDecl(boolean printCtorArgs)
private void
emitCtorArgs()
private void
emitDoEOF()
private void
emitDynamicInit()
private void
emitEOFVal()
private void
emitGetRowMapNext()
private void
emitHeader()
private void
emitLexFunctHeader(java.lang.String functionName)
private void
emitLexicalStates()
private void
emitLookBuffer()
private void
emitMain(java.lang.String functionName)
private void
emitNextInput()
private void
emitNoMatch()
private void
emitRowMapArray()
private void
emitScanError()
private void
emitTokenSizeLimit(java.lang.String limit)
private void
emitUserCode()
private void
emitVarDefs()
Emityychar
,yycolumn
,zzAtBOL
,zzEOFDone
with warning suppression when needed.private static java.lang.String
escapify(java.lang.String s)
Escapes all " ' \ tabs and newlinesprivate void
findActionStates()
(package private) static java.lang.String
getBaseName(java.lang.String className)
Computes base name of the class name.private boolean
hasGenLookAhead()
private void
mapColMap(int[] blocks)
Performs an in-place update to map the colMap translation over the char classes in the second-level cmap table.static java.io.File
normalize(java.lang.String name, java.io.File input)
Constructs a file in Options.getDir() or in the same directory as another file.private void
print(int i)
private void
print(int i, int tab)
private void
print(java.lang.String line)
private void
println()
private void
println(int i)
private void
println(java.lang.String line)
private void
reduceColumns()
private void
reduceRows()
private void
setupEOFCode()
Set up EOF code section according to scanner.eofcodestatic java.lang.String
sourceFileString(java.io.File file)
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Field Detail
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FINAL
private static final int FINAL
- See Also:
- Constant Field Values
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NOLOOK
private static final int NOLOOK
- See Also:
- Constant Field Values
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inputFile
private final java.io.File inputFile
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outputFileName
final java.lang.String outputFileName
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out
private final java.io.PrintWriter out
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skel
private final Skeleton skel
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scanner
private final AbstractLexScan scanner
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parser
private final LexParse parser
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dfa
private final DFA dfa
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isTransition
private boolean[] isTransition
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rowMap
private int[] rowMap
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rowKilled
private boolean[] rowKilled
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numCols
private int numCols
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colMap
private int[] colMap
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colKilled
private boolean[] colKilled
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actionTable
private final java.util.Map<Action,java.lang.Integer> actionTable
maps actions to their switch label
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visibility
private final java.lang.String visibility
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eofCode
private java.lang.String eofCode
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eofThrow
private java.lang.String eofThrow
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Method Detail
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getBaseName
static java.lang.String getBaseName(java.lang.String className)
Computes base name of the class name. Needs to take into account generics.- Parameters:
className
- Class name for which to construct the base name
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normalize
public static java.io.File normalize(java.lang.String name, java.io.File input)
Constructs a file in Options.getDir() or in the same directory as another file. Makes a backup if the file already exists.- Parameters:
name
- the name (without path) of the fileinput
- fall back location ifpath = null
(expected to be a file in the directory to write to)- Returns:
- The constructed File
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println
private void println()
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println
private void println(java.lang.String line)
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println
private void println(int i)
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print
private void print(java.lang.String line)
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print
private void print(int i)
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print
private void print(int i, int tab)
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hasGenLookAhead
private boolean hasGenLookAhead()
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emitLookBuffer
private void emitLookBuffer()
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emitScanError
private void emitScanError()
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emitMain
private void emitMain(java.lang.String functionName)
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emitNoMatch
private void emitNoMatch()
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emitNextInput
private void emitNextInput()
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sourceFileString
public static java.lang.String sourceFileString(java.io.File file)
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emitHeader
private void emitHeader()
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emitUserCode
private void emitUserCode()
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emitClassName
private void emitClassName()
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emitLexicalStates
private void emitLexicalStates()
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emitDynamicInit
private void emitDynamicInit()
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emitCharMapArrayUnPacked
private void emitCharMapArrayUnPacked()
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mapColMap
private void mapColMap(int[] blocks)
Performs an in-place update to map the colMap translation over the char classes in the second-level cmap table.
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emitCharMapTables
private void emitCharMapTables()
Emits two-level character translation tables. The translation is from raw input codepoint to the column in the generated DFA table.For maxCharCode < 256, a single-level unpacked array is used instead.
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emitRowMapArray
private void emitRowMapArray()
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emitAttributes
private void emitAttributes()
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emitClassCode
private void emitClassCode()
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emitConstructorDecl
private void emitConstructorDecl()
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emitConstructorDecl
private void emitConstructorDecl(boolean printCtorArgs)
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emitCtorArgs
private void emitCtorArgs()
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emitDoEOF
private void emitDoEOF()
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emitLexFunctHeader
private void emitLexFunctHeader(java.lang.String functionName)
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emitCMapAccess
private void emitCMapAccess()
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emitGetRowMapNext
private void emitGetRowMapNext()
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escapify
private static java.lang.String escapify(java.lang.String s)
Escapes all " ' \ tabs and newlines- Parameters:
s
- The string to escape- Returns:
- The escaped string
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emitActionTable
private void emitActionTable()
emitActionTable.
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emitTokenSizeLimit
private void emitTokenSizeLimit(java.lang.String limit)
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emitActions
private void emitActions()
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emitEOFVal
private void emitEOFVal()
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findActionStates
private void findActionStates()
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reduceColumns
private void reduceColumns()
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reduceRows
private void reduceRows()
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setupEOFCode
private void setupEOFCode()
Set up EOF code section according to scanner.eofcode
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emitVarDefs
private void emitVarDefs()
Emityychar
,yycolumn
,zzAtBOL
,zzEOFDone
with warning suppression when needed.
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emit
public void emit()
Main Emitter method.
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