Type (RMIC compiler 4.1.1-b001 API)

java.lang.Object
- sun.tools.java.Type

All Implemented Interfaces:

Constants, RuntimeConstants

Direct Known Subclasses:

ArrayType, ClassType, MethodType
```
public class Type
extends Object
implements Constants
```
This class represents an Java Type.
It encapsulates an Java type signature and it provides quick access to the components of the type. Note that all types are hashed into a hashtable (typeHash), that means that each distinct type is only allocated once, saving space and making equality checks cheap.
For simple types use the constants defined in this class. (Type.tInt, Type.tShort, ...). To create complex types use the static methods Type.tArray, Type.tMethod or Type.tClass. For classes, arrays and method types a sub class of class type is created which defines the extra type components. WARNING: The contents of this source file are not part of any supported API. Code that depends on them does so at its own risk: they are subject to change or removal without notice.

Author:

Arthur van Hoff

See Also:
ArrayType, ClassType, MethodType

Field Summary

Fields
Modifier and Type	Field and Description
`static Type[]`	`noArgs`
`static Type`	`tBoolean`
`static Type`	`tByte`
`static Type`	`tChar`
`static Type`	`tClassDesc`
`static Type`	`tCloneable`
`static Type`	`tDouble`
`static Type`	`tError`
`static Type`	`tFloat`
`static Type`	`tInt`
`static Type`	`tLong`
`static Type`	`tNull`
`static Type`	`tObject`
`static Type`	`tPackage`
`static Type`	`tSerializable`
`static Type`	`tShort`
`static Type`	`tString`
`static Type`	`tVoid`
`protected int`	`typeCode` The TypeCode of this type.
`protected String`	`typeSig` The TypeSignature of this type.

Fields inherited from interface sun.tools.java.Constants
ABSTRACT, ACCM_CLASS, ACCM_FIELD, ACCM_INNERCLASS, ACCM_MEMBER, ACCM_METHOD, ADD, AND, ARRAY, ARRAYACCESS, ASGADD, ASGBITAND, ASGBITOR, ASGBITXOR, ASGDIV, ASGLSHIFT, ASGMUL, ASGREM, ASGRSHIFT, ASGSUB, ASGURSHIFT, ASSIGN, ATT_ALL, ATT_ALLCLASSES, ATT_CODE, BITAND, BITNOT, BITOR, BITXOR, BOOLEAN, BOOLEANVAL, BREAK, BYTE, BYTEVAL, CASE, CAST, CATCH, CHAR, CHARVAL, CLASS, COLON, COMMA, COMMENT, COND, CONST, CONTINUE, CONVERT, CS_BINARY, CS_CHECKED, CS_COMPILED, CS_NOTFOUND, CS_PARSED, CS_SOURCE, CS_UNDECIDED, CS_UNDEFINED, CT_BLOCK, CT_BRANCH_FALSE, CT_BRANCH_TRUE, CT_CASE, CT_FIKT_METHOD, CT_FIKT_RET, CT_FIRST_KIND, CT_LAST_KIND, CT_METHOD, CT_SWITH_WO_DEF, DEC, DECLARATION, DEFAULT, DIV, DO, DOUBLE, DOUBLEVAL, ELSE, EQ, ERROR, EXPR, EXPRESSION, EXTENDS, F_COVDATA, F_COVERAGE, F_DEBUG_LINES, F_DEBUG_SOURCE, F_DEBUG_VARS, F_DEPENDENCIES, F_DEPRECATION, F_DUMP, F_ERRORSREPORTED, F_OPT, F_OPT_INTERCLASS, F_PRINT_DEPENDENCIES, F_STRICTDEFAULT, F_VERBOSE, F_VERSION12, F_WARNINGS, FALSE, FIELD, FINAL, FINALLY, FLOAT, FLOATVAL, FOR, GE, GOTO, GT, idAppend, idClass, idClassInit, idClone, idCode, idConstantValue, idCoverageTable, idDeprecated, idDocumentation, IDENT, idExceptions, idFinallyReturnValue, idGetClass, idInit, idInnerClasses, idJavaIoSerializable, idJavaLang, idJavaLangClass, idJavaLangCloneable, idJavaLangError, idJavaLangException, idJavaLangObject, idJavaLangRuntimeException, idJavaLangString, idJavaLangStringBuffer, idJavaLangThrowable, idLength, idLineNumberTable, idLocalVariableTable, idNew, idNull, idSourceFile, idStar, idSuper, idSynthetic, idThis, idToString, idTYPE, idValueOf, IF, IMPLEMENTS, IMPORT, INC, INLINEMETHOD, INLINENEWINSTANCE, INLINERETURN, INSTANCEOF, INT, INTERFACE, INTVAL, LBRACE, LE, LENGTH, LONG, LONGVAL, LPAREN, LSHIFT, LSQBRACKET, LT, M_ABSTRACT, M_ANONYMOUS, M_DEPRECATED, M_FINAL, M_INLINEABLE, M_INTERFACE, M_LOCAL, M_NATIVE, M_PRIVATE, M_PROTECTED, M_PUBLIC, M_STATIC, M_STRICTFP, M_SYNCHRONIZED, M_SYNTHETIC, M_TRANSIENT, M_VOLATILE, MAXFILESIZE, MAXLINENUMBER, METHOD, MM_CLASS, MM_FIELD, MM_MEMBER, MM_METHOD, MUL, NATIVE, NE, NEG, NEW, NEWARRAY, NEWFROMNAME, NEWINSTANCE, NOT, NULL, opNames, opPrecedence, OR, PACKAGE, paraDeprecated, POS, POSTDEC, POSTINC, PREDEC, prefixAccess, prefixArray, prefixClass, prefixLoc, prefixThis, prefixVal, PREINC, PRIVATE, PROTECTED, PUBLIC, QUESTIONMARK, RBRACE, REM, RETURN, RPAREN, RSHIFT, RSQBRACKET, SEMICOLON, SHORT, SHORTVAL, SIG_INNERCLASS, SIGC_INNERCLASS, STAT, STATIC, STRICTFP, STRINGVAL, SUB, SUPER, SWITCH, SYNCHRONIZED, TC_ARRAY, TC_BOOLEAN, TC_BYTE, TC_CHAR, TC_CLASS, TC_DOUBLE, TC_ERROR, TC_FLOAT, TC_INT, TC_LONG, TC_METHOD, TC_NULL, TC_SHORT, TC_VOID, THIS, THROW, THROWS, TM_ARRAY, TM_BOOLEAN, TM_BYTE, TM_CHAR, TM_CLASS, TM_DOUBLE, TM_ERROR, TM_FLOAT, TM_INT, TM_INT32, TM_INTEGER, TM_LONG, TM_METHOD, TM_NULL, TM_NUM32, TM_NUM64, TM_NUMBER, TM_REAL, TM_REFERENCE, TM_SHORT, TM_VOID, tracing, TRANSIENT, TRUE, TRY, TYPE, URSHIFT, VARDECLARATION, VOID, VOLATILE, WHEREOFFSETBITS, WHILE

Fields inherited from interface sun.tools.java.RuntimeConstants
ACC_ABSTRACT, ACC_FINAL, ACC_INTERFACE, ACC_NATIVE, ACC_PRIVATE, ACC_PROTECTED, ACC_PUBLIC, ACC_STATIC, ACC_STRICT, ACC_SUPER, ACC_SYNCHRONIZED, ACC_TRANSIENT, ACC_VOLATILE, CONSTANT_CLASS, CONSTANT_DOUBLE, CONSTANT_FIELD, CONSTANT_FLOAT, CONSTANT_INTEGER, CONSTANT_INTERFACEMETHOD, CONSTANT_INVOKEDYNAMIC, CONSTANT_LONG, CONSTANT_METHOD, CONSTANT_METHODHANDLE, CONSTANT_METHODTYPE, CONSTANT_NAMEANDTYPE, CONSTANT_STRING, CONSTANT_UNICODE, CONSTANT_UTF8, JAVA_DEFAULT_MINOR_VERSION, JAVA_DEFAULT_VERSION, JAVA_MAGIC, JAVA_MAX_SUPPORTED_MINOR_VERSION, JAVA_MAX_SUPPORTED_VERSION, JAVA_MIN_SUPPORTED_VERSION, opc_aaload, opc_aastore, opc_aconst_null, opc_aload, opc_aload_0, opc_aload_1, opc_aload_2, opc_aload_3, opc_anewarray, opc_areturn, opc_arraylength, opc_astore, opc_astore_0, opc_astore_1, opc_astore_2, opc_astore_3, opc_athrow, opc_baload, opc_bastore, opc_bipush, opc_breakpoint, opc_caload, opc_castore, opc_checkcast, opc_d2f, opc_d2i, opc_d2l, opc_dadd, opc_daload, opc_dastore, opc_dcmpg, opc_dcmpl, opc_dconst_0, opc_dconst_1, opc_ddiv, opc_dead, opc_dload, opc_dload_0, opc_dload_1, opc_dload_2, opc_dload_3, opc_dmul, opc_dneg, opc_drem, opc_dreturn, opc_dstore, opc_dstore_0, opc_dstore_1, opc_dstore_2, opc_dstore_3, opc_dsub, opc_dup, opc_dup_x1, opc_dup_x2, opc_dup2, opc_dup2_x1, opc_dup2_x2, opc_f2d, opc_f2i, opc_f2l, opc_fadd, opc_faload, opc_fastore, opc_fcmpg, opc_fcmpl, opc_fconst_0, opc_fconst_1, opc_fconst_2, opc_fdiv, opc_fload, opc_fload_0, opc_fload_1, opc_fload_2, opc_fload_3, opc_fmul, opc_fneg, opc_frem, opc_freturn, opc_fstore, opc_fstore_0, opc_fstore_1, opc_fstore_2, opc_fstore_3, opc_fsub, opc_getfield, opc_getstatic, opc_goto, opc_goto_w, opc_i2b, opc_i2c, opc_i2d, opc_i2f, opc_i2l, opc_i2s, opc_iadd, opc_iaload, opc_iand, opc_iastore, opc_iconst_0, opc_iconst_1, opc_iconst_2, opc_iconst_3, opc_iconst_4, opc_iconst_5, opc_iconst_m1, opc_idiv, opc_if_acmpeq, opc_if_acmpne, opc_if_icmpeq, opc_if_icmpge, opc_if_icmpgt, opc_if_icmple, opc_if_icmplt, opc_if_icmpne, opc_ifeq, opc_ifge, opc_ifgt, opc_ifle, opc_iflt, opc_ifne, opc_ifnonnull, opc_ifnull, opc_iinc, opc_iload, opc_iload_0, opc_iload_1, opc_iload_2, opc_iload_3, opc_imul, opc_ineg, opc_instanceof, opc_invokedynamic, opc_invokeinterface, opc_invokespecial, opc_invokestatic, opc_invokevirtual, opc_ior, opc_irem, opc_ireturn, opc_ishl, opc_ishr, opc_istore, opc_istore_0, opc_istore_1, opc_istore_2, opc_istore_3, opc_isub, opc_iushr, opc_ixor, opc_jsr, opc_jsr_w, opc_l2d, opc_l2f, opc_l2i, opc_label, opc_ladd, opc_laload, opc_land, opc_lastore, opc_lcmp, opc_lconst_0, opc_lconst_1, opc_ldc, opc_ldc_w, opc_ldc2_w, opc_ldiv, opc_lload, opc_lload_0, opc_lload_1, opc_lload_2, opc_lload_3, opc_lmul, opc_lneg, opc_lookupswitch, opc_lor, opc_lrem, opc_lreturn, opc_lshl, opc_lshr, opc_lstore, opc_lstore_0, opc_lstore_1, opc_lstore_2, opc_lstore_3, opc_lsub, opc_lushr, opc_lxor, opc_monitorenter, opc_monitorexit, opc_multianewarray, opc_new, opc_newarray, opc_nop, opc_pop, opc_pop2, opc_putfield, opc_putstatic, opc_ret, opc_return, opc_saload, opc_sastore, opc_sipush, opc_swap, opc_tableswitch, opc_try, opc_wide, opcLengths, opcNames, SIG_ARRAY, SIG_BOOLEAN, SIG_BYTE, SIG_CHAR, SIG_CLASS, SIG_DOUBLE, SIG_ENDCLASS, SIG_ENDMETHOD, SIG_FLOAT, SIG_INT, SIG_LONG, SIG_METHOD, SIG_PACKAGE, SIG_SHORT, SIG_VOID, SIGC_ARRAY, SIGC_BOOLEAN, SIGC_BYTE, SIGC_CHAR, SIGC_CLASS, SIGC_DOUBLE, SIGC_ENDCLASS, SIGC_ENDMETHOD, SIGC_FLOAT, SIGC_INT, SIGC_LONG, SIGC_METHOD, SIGC_PACKAGE, SIGC_SHORT, SIGC_VOID, T_BOOLEAN, T_BYTE, T_CHAR, T_CLASS, T_DOUBLE, T_FLOAT, T_INT, T_LONG, T_SHORT

Constructor Summary

Constructors
Modifier Constructor and Description

protected Type(int typeCode, String typeSig)
Create a type given a typecode and a type signature.

Constructors
Modifier	Constructor and Description
`protected`	`Type(int typeCode, String typeSig)` Create a type given a typecode and a type signature.

Method Summary

Methods
Modifier and Type	Method and Description
`boolean`	`equalArguments(Type t)` Check if the type arguments are the same.
`Type[]`	`getArgumentTypes()` Return the argument types.
`int`	`getArrayDimension()` Return the array dimension.
`Identifier`	`getClassName()` Return the ClassName.
`Type`	`getElementType()` Return the element type of an array type.
`Type`	`getReturnType()` Return the return type.
`int`	`getTypeCode()` Return the type code.
`int`	`getTypeCodeOffset()` Return the type code offset.
`int`	`getTypeMask()` Return the type mask.
`String`	`getTypeSignature()` Return the Java type signature.
`boolean`	`inMask(int tm)` Check for a certain set of types.
`boolean`	`isType(int tc)` Check for a certain type.
`boolean`	`isVoidArray()` Check to see if this is the bogus type "array of void" Although this highly degenerate "type" is not constructable from the grammar, the Parser accepts it.
`static Identifier`	`mangleInnerType(Identifier className)` Given an inner identifier, return the non-inner, mangled representation used to manage signatures.
`int`	`stackSize()` Return the amount of space this type takes up on the Java operand stack.
`static Type`	`tArray(Type elem)` Create an array type.
`static Type`	`tClass(Identifier className)` Create a class type.
`static Type`	`tMethod(Type ret)` Create a method type with no arguments.
`static Type`	`tMethod(Type returnType, Type[] argTypes)` Create a method type with arguments.
`String`	`toString()` Convert to a String
`static Type`	`tType(String sig)` Create a Type from an Java type signature.
`String`	`typeString(String id)` Create a type string, given an identifier.
`String`	`typeString(String id, boolean abbrev, boolean ret)` Convert a Type to a string, if abbrev is true class names are not fully qualified, if ret is true the return type is included.

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

- Field Detail
  - typeCode
```
protected int typeCode
```
    The TypeCode of this type. The value of this field is one of the TC_* contant values defined in Constants.
    
    See Also:
    Constants
  - typeSig
```
protected String typeSig
```
    The TypeSignature of this type. This type signature is equivalent to the runtime type signatures used by the interpreter.
  - noArgs
```
public static final Type[] noArgs
```
  - tError
```
public static final Type tError
```
  - tPackage
```
public static final Type tPackage
```
  - tNull
```
public static final Type tNull
```
  - tVoid
```
public static final Type tVoid
```
  - tBoolean
```
public static final Type tBoolean
```
  - tByte
```
public static final Type tByte
```
  - tChar
```
public static final Type tChar
```
  - tShort
```
public static final Type tShort
```
  - tInt
```
public static final Type tInt
```
  - tFloat
```
public static final Type tFloat
```
  - tLong
```
public static final Type tLong
```
  - tDouble
```
public static final Type tDouble
```
  - tObject
```
public static final Type tObject
```
  - tClassDesc
```
public static final Type tClassDesc
```
  - tString
```
public static final Type tString
```
  - tCloneable
```
public static final Type tCloneable
```
  - tSerializable
```
public static final Type tSerializable
```
- Constructor Detail
  - Type
```
protected Type(int typeCode,
    String typeSig)
```
    Create a type given a typecode and a type signature.
- Method Detail
  - getTypeSignature
```
public final String getTypeSignature()
```
    Return the Java type signature.
  - getTypeCode
```
public final int getTypeCode()
```
    Return the type code.
  - getTypeMask
```
public final int getTypeMask()
```
    Return the type mask. The bits in this mask correspond to the TM_* constants defined in Constants. Only one bit is set at a type.
    
    See Also:
    Constants
  - isType
```
public final boolean isType(int tc)
```
    Check for a certain type.
  - isVoidArray
```
public boolean isVoidArray()
```
    Check to see if this is the bogus type "array of void" Although this highly degenerate "type" is not constructable from the grammar, the Parser accepts it. Rather than monkey with the Parser, we check for the bogus type at specific points and give a nice error.
  - inMask
```
public final boolean inMask(int tm)
```
    Check for a certain set of types.
  - tArray
```
public static Type tArray(Type elem)
```
    Create an array type.
  - getElementType
```
public Type getElementType()
```
    Return the element type of an array type. Only works for array types.
  - getArrayDimension
```
public int getArrayDimension()
```
    Return the array dimension. Only works for array types.
  - tClass
```
public static Type tClass(Identifier className)
```
    Create a class type.
  - getClassName
```
public Identifier getClassName()
```
    Return the ClassName. Only works on class types.
  - mangleInnerType
```
public static Identifier mangleInnerType(Identifier className)
```
    Given an inner identifier, return the non-inner, mangled representation used to manage signatures. Note: It is changed to 'public' for Jcov file generation. (see Assembler.java)
  - tMethod
```
public static Type tMethod(Type ret)
```
    Create a method type with no arguments.
  - tMethod
```
public static Type tMethod(Type returnType,
           Type[] argTypes)
```
    Create a method type with arguments.
  - getReturnType
```
public Type getReturnType()
```
    Return the return type. Only works for method types.
  - getArgumentTypes
```
public Type[] getArgumentTypes()
```
    Return the argument types. Only works for method types.
  - tType
```
public static Type tType(String sig)
```
    Create a Type from an Java type signature.
    
    Throws:
    
    CompilerError - invalid type signature.
  - equalArguments
```
public boolean equalArguments(Type t)
```
    Check if the type arguments are the same.
    
    Returns:
    true if both types are method types and the argument types are identical.
  - stackSize
```
public int stackSize()
```
    Return the amount of space this type takes up on the Java operand stack. For a method this is equal to the total space taken up by the arguments.
  - getTypeCodeOffset
```
public int getTypeCodeOffset()
```
    Return the type code offset. This offset can be added to an opcode to get the right opcode type. Most opcodes are ordered: int, long, float, double, array. For example: iload, lload fload, dload, aload. So the appropriate opcode is iadd + type.getTypeCodeOffset().
  - typeString
```
public String typeString(String id,
                boolean abbrev,
                boolean ret)
```
    Convert a Type to a string, if abbrev is true class names are not fully qualified, if ret is true the return type is included.
  - typeString
```
public String typeString(String id)
```
    Create a type string, given an identifier.
  - toString
```
public String toString()
```
    Convert to a String
    
    Overrides:
    
    toString in class Object

Class Type

Field Summary

Fields inherited from interface sun.tools.java.Constants

Fields inherited from interface sun.tools.java.RuntimeConstants

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Field Detail

typeCode

typeSig

noArgs

tError

tPackage

tNull

tVoid

tBoolean

tByte

tChar

tShort

tInt

tFloat

tLong

tDouble

tObject

tClassDesc

tString

tCloneable

tSerializable

Constructor Detail

Type

Method Detail

getTypeSignature

getTypeCode

getTypeMask

isType

isVoidArray

inMask

tArray

getElementType

getArrayDimension

tClass

getClassName

mangleInnerType

tMethod

tMethod

getReturnType

getArgumentTypes

tType

equalArguments

stackSize

getTypeCodeOffset

typeString

typeString

toString