Symtab (jdk.compiler 1.8.132 API)

java.lang.Object
- com.sun.tools.javac.code.Symtab

```
public class Symtab
extends Object
```
A class that defines all predefined constants and operators as well as special classes such as java.lang.Object, which need to be known to the compiler. All symbols are held in instance fields. This makes it possible to work in multiple concurrent projects, which might use different class files for library classes.
This is NOT part of any supported API. If you write code that depends on this, you do so at your own risk. This code and its internal interfaces are subject to change or deletion without notice.

Field Summary

Fields
Modifier and Type	Field and Description
`Type`	`annotationTargetType`
`Type`	`annotationType`
`Symbol.ClassSymbol`	`arrayClass` The builtin type of all arrays.
`Symbol.MethodSymbol`	`arrayCloneMethod`
`Type`	`arraysType`
`Type`	`assertionErrorType`
`Symbol.MethodSymbol`	`autoCloseableClose` The symbol representing the close method on TWR AutoCloseable type
`Type`	`autoCloseableType`
`Type.JCPrimitiveType`	`booleanType`
`Type`	`botType`
`Symbol.ClassSymbol`	`boundClass` VGJ: The (singleton) type of all bound types.
`Name[]`	`boxedName` The name of the class that belongs to a basix type tag.
`Type.JCPrimitiveType`	`byteType` Builtin types.
`Type.JCPrimitiveType`	`charType`
`Map<Name,Symbol.ClassSymbol>`	`classes` A hashtable containing the encountered top-level and member classes, indexed by flat names.
`Type`	`classLoaderType`
`Type`	`classNotFoundExceptionType`
`Type`	`classType`
`Type`	`cloneableType`
`Type`	`cloneNotSupportedExceptionType`
`Type`	`collectionsType`
`Type`	`comparableType`
`Type`	`comparatorType`
`Type`	`deprecatedType`
`Type`	`documentedType`
`Type.JCPrimitiveType`	`doubleType`
`Type`	`elementTypeType`
`Symbol.MethodSymbol`	`enumFinalFinalize` The symbol representing the final finalize method on enums
`Symbol.TypeSymbol`	`enumSym`
`Type`	`errorType`
`Symbol.ClassSymbol`	`errSymbol` The error symbol.
`Type`	`errType` A value for the errType, with a originalType of noType
`Type`	`exceptionType`
`Type.JCPrimitiveType`	`floatType`
`Type`	`functionalInterfaceType`
`Type`	`illegalArgumentExceptionType`
`Type`	`inheritedType`
`Type`	`interruptedExceptionType`
`Type.JCPrimitiveType`	`intType`
`Type`	`iterableType`
`Type`	`iteratorType`
`Type`	`lambdaMetafactory`
`Symbol.VarSymbol`	`lengthVar` The symbol representing the length field of an array.
`Type`	`listType`
`Type.JCPrimitiveType`	`longType`
`Symbol.ClassSymbol`	`methodClass` The builtin type of all methods.
`Type`	`methodHandleLookupType`
`Type`	`methodHandleType`
`Type`	`methodTypeType`
`Type`	`nativeHeaderType`
`Type`	`noClassDefFoundErrorType`
`Type`	`noSuchFieldErrorType`
`Symbol.TypeSymbol`	`noSymbol` A symbol that stands for a missing symbol.
`Symbol.OperatorSymbol`	`nullcheck` The null check operator.
`Type`	`objectType` Predefined types.
`Set<Name>`	`operatorNames` A set containing all operator names.
`Type`	`overrideType`
`Map<Name,Symbol.PackageSymbol>`	`packages` A hashtable containing the encountered packages.
`Symbol.ClassSymbol`	`predefClass` The class symbol that owns all predefined symbols.
`Type`	`profileType`
`Type`	`proprietaryType`
`Type`	`repeatableType`
`Type`	`retentionType`
`Symbol.PackageSymbol`	`rootPackage` A symbol for the root package.
`Type`	`runtimeExceptionType`
`Type`	`serializableType`
`Type`	`serializedLambdaType`
`Type.JCPrimitiveType`	`shortType`
`Type`	`stringBufferType`
`Type`	`stringBuilderType`
`Type`	`stringType`
`Type`	`suppressWarningsType`
`protected static Context.Key<Symtab>`	`symtabKey` The context key for the symbol table.
`Type`	`systemType`
`Type`	`throwableType`
`Type`	`trustMeType`
`Type[]`	`typeOfTag` The predefined type that belongs to a tag.
`Symbol.ClassSymbol`	`unknownSymbol` The unknown symbol.
`Type`	`unknownType` A value for the unknown type.
`Symbol.PackageSymbol`	`unnamedPackage` A symbol for the unnamed package.
`Type.JCVoidType`	`voidType`

Constructor Summary

Constructors
Modifier Constructor and Description

protected Symtab(Context context)
Constructor; enters all predefined identifiers and operators into symbol table.

Constructors
Modifier	Constructor and Description
`protected`	`Symtab(Context context)` Constructor; enters all predefined identifiers and operators into symbol table.

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`void`	`initType(Type type, String name)`
`void`	`initType(Type type, String name, String bname)`
`void`	`initType(Type type, Symbol.ClassSymbol c)`
`static Symtab`	`instance(Context context)` Get the symbol table instance.
`void`	`synthesizeBoxTypeIfMissing(Type type)`
`void`	`synthesizeEmptyInterfaceIfMissing(Type type)`

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

symtabKey

protected static final Context.Key<Symtab> symtabKey

The context key for the symbol table.

byteType

public final Type.JCPrimitiveType byteType

Builtin types.

charType

public final Type.JCPrimitiveType charType

shortType

public final Type.JCPrimitiveType shortType

intType

public final Type.JCPrimitiveType intType

longType

public final Type.JCPrimitiveType longType

floatType

public final Type.JCPrimitiveType floatType

doubleType

public final Type.JCPrimitiveType doubleType

booleanType

public final Type.JCPrimitiveType booleanType

botType
```
public final Type botType
```

voidType
```
public final Type.JCVoidType voidType
```

rootPackage

public final Symbol.PackageSymbol rootPackage

A symbol for the root package.

unnamedPackage

public final Symbol.PackageSymbol unnamedPackage

A symbol for the unnamed package.

noSymbol
```
public final Symbol.TypeSymbol noSymbol
```
A symbol that stands for a missing symbol.

errSymbol

public final Symbol.ClassSymbol errSymbol

The error symbol.

unknownSymbol

public final Symbol.ClassSymbol unknownSymbol

The unknown symbol.

errType
```
public final Type errType
```
A value for the errType, with a originalType of noType

unknownType
```
public final Type unknownType
```
A value for the unknown type.

arrayClass

public final Symbol.ClassSymbol arrayClass

The builtin type of all arrays.

arrayCloneMethod

public final Symbol.MethodSymbol arrayCloneMethod

boundClass
```
public final Symbol.ClassSymbol boundClass
```
VGJ: The (singleton) type of all bound types.

methodClass

public final Symbol.ClassSymbol methodClass

The builtin type of all methods.

objectType
```
public final Type objectType
```
Predefined types.

classType
```
public final Type classType
```

classLoaderType
```
public final Type classLoaderType
```

stringType
```
public final Type stringType
```

stringBufferType
```
public final Type stringBufferType
```

stringBuilderType
```
public final Type stringBuilderType
```

cloneableType
```
public final Type cloneableType
```

serializableType
```
public final Type serializableType
```

serializedLambdaType
```
public final Type serializedLambdaType
```

methodHandleType
```
public final Type methodHandleType
```

methodHandleLookupType

public final Type methodHandleLookupType

methodTypeType
```
public final Type methodTypeType
```

nativeHeaderType
```
public final Type nativeHeaderType
```

throwableType
```
public final Type throwableType
```

errorType
```
public final Type errorType
```

interruptedExceptionType

public final Type interruptedExceptionType

illegalArgumentExceptionType

public final Type illegalArgumentExceptionType

exceptionType
```
public final Type exceptionType
```

runtimeExceptionType
```
public final Type runtimeExceptionType
```

classNotFoundExceptionType

public final Type classNotFoundExceptionType

noClassDefFoundErrorType

public final Type noClassDefFoundErrorType

noSuchFieldErrorType
```
public final Type noSuchFieldErrorType
```

assertionErrorType
```
public final Type assertionErrorType
```

cloneNotSupportedExceptionType

public final Type cloneNotSupportedExceptionType

annotationType
```
public final Type annotationType
```

enumSym
```
public final Symbol.TypeSymbol enumSym
```

listType
```
public final Type listType
```

collectionsType
```
public final Type collectionsType
```

comparableType
```
public final Type comparableType
```

comparatorType
```
public final Type comparatorType
```

arraysType
```
public final Type arraysType
```

iterableType
```
public final Type iterableType
```

iteratorType
```
public final Type iteratorType
```

annotationTargetType
```
public final Type annotationTargetType
```

overrideType
```
public final Type overrideType
```

retentionType
```
public final Type retentionType
```

deprecatedType
```
public final Type deprecatedType
```

suppressWarningsType
```
public final Type suppressWarningsType
```

inheritedType
```
public final Type inheritedType
```

profileType
```
public final Type profileType
```

proprietaryType
```
public final Type proprietaryType
```

systemType
```
public final Type systemType
```

autoCloseableType
```
public final Type autoCloseableType
```

trustMeType
```
public final Type trustMeType
```

lambdaMetafactory
```
public final Type lambdaMetafactory
```

repeatableType
```
public final Type repeatableType
```

documentedType
```
public final Type documentedType
```

elementTypeType
```
public final Type elementTypeType
```

functionalInterfaceType

public final Type functionalInterfaceType

lengthVar
```
public final Symbol.VarSymbol lengthVar
```
The symbol representing the length field of an array.

nullcheck

public final Symbol.OperatorSymbol nullcheck

The null check operator.

enumFinalFinalize
```
public final Symbol.MethodSymbol enumFinalFinalize
```
The symbol representing the final finalize method on enums

autoCloseableClose
```
public final Symbol.MethodSymbol autoCloseableClose
```
The symbol representing the close method on TWR AutoCloseable type

typeOfTag
```
public final Type[] typeOfTag
```
The predefined type that belongs to a tag.

boxedName
```
public final Name[] boxedName
```
The name of the class that belongs to a basix type tag.

operatorNames
```
public final Set<Name> operatorNames
```
A set containing all operator names.

classes
```
public final Map<Name,Symbol.ClassSymbol> classes
```
A hashtable containing the encountered top-level and member classes, indexed by flat names. The table does not contain local classes. It should be updated from the outside to reflect classes defined by compiled source files.

packages
```
public final Map<Name,Symbol.PackageSymbol> packages
```
A hashtable containing the encountered packages. the table should be updated from outside to reflect packages defined by compiled source files.

predefClass
```
public final Symbol.ClassSymbol predefClass
```
The class symbol that owns all predefined symbols.

Constructor Detail
- Symtab
```
protected Symtab(Context context)
          throws Symbol.CompletionFailure
```
  Constructor; enters all predefined identifiers and operators into symbol table.
  
  Throws:
  
  Symbol.CompletionFailure

Method Detail

instance

public static Symtab instance(Context context)

Get the symbol table instance.

initType

public void initType(Type type,
                     Symbol.ClassSymbol c)

initType

public void initType(Type type,
                     String name)

initType

public void initType(Type type,
                     String name,
                     String bname)

synthesizeEmptyInterfaceIfMissing

public void synthesizeEmptyInterfaceIfMissing(Type type)

synthesizeBoxTypeIfMissing

public void synthesizeBoxTypeIfMissing(Type type)

Class Symtab

Field Summary

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Field Detail

symtabKey

byteType

charType

shortType

intType

longType

floatType

doubleType

booleanType

botType

voidType

rootPackage

unnamedPackage

noSymbol

errSymbol

unknownSymbol

errType

unknownType

arrayClass

arrayCloneMethod

boundClass

methodClass

objectType

classType

classLoaderType

stringType

stringBufferType

stringBuilderType

cloneableType

serializableType

serializedLambdaType

methodHandleType

methodHandleLookupType

methodTypeType

nativeHeaderType

throwableType

errorType

interruptedExceptionType

illegalArgumentExceptionType

exceptionType

runtimeExceptionType

classNotFoundExceptionType

noClassDefFoundErrorType

noSuchFieldErrorType

assertionErrorType

cloneNotSupportedExceptionType

annotationType

enumSym

listType

collectionsType

comparableType

comparatorType

arraysType

iterableType

iteratorType

annotationTargetType

overrideType

retentionType

deprecatedType

suppressWarningsType

inheritedType

profileType

proprietaryType

systemType

autoCloseableType

trustMeType

lambdaMetafactory

repeatableType

documentedType

elementTypeType

functionalInterfaceType

lengthVar

nullcheck

enumFinalFinalize