com.sun.squawk.compiler
Class Type

java.lang.Object
  com.sun.squawk.compiler.Type

public class Type
extends Object

Type representation and types for the Compiler.

Field Summary

static Type	BYTE Define secondary types.
static int	Code_A Opcode subtype codes.
static int	Code_B Opcode subtype codes.
static int	Code_C Opcode subtype codes.
static int	Code_D Opcode subtype codes.
static int	Code_F Opcode subtype codes.
static int	Code_G Opcode subtype codes.
static int	Code_I Opcode subtype codes.
static int	Code_L Opcode subtype codes.
static int	Code_O Opcode subtype codes.
static int	Code_R Opcode subtype codes.
static int	Code_S Opcode subtype codes.
static int	Code_U Opcode subtype codes.
static int	Code_V Opcode subtype codes.
static Type	DOUBLE Define primary types.
static Type	FLOAT Define primary types.
static Type	INT Define primary types.
static Type	IP Special dummy types for specifing the MP, IP and LP variables.
static Type	LONG Define primary types.
static Type	LP Special dummy types for specifing the MP, IP and LP variables.
static Type	MP Special dummy types for specifing the MP, IP and LP variables.
static Type	OOP Define primary types.
static Type	REF Define primary types.
static int	RELOC_ABSOLUTE_INT Relocation type for absolute int addresses.
static int	RELOC_RELATIVE_INT Relocation type for relative int addresses.
static Type	SHORT Define secondary types.
static Type	SS Special dummy types for specifing the MP, IP and LP variables.
static Type	UBYTE Define secondary types.
static Type	UINT Define primary types.
static Type	ULONG Define primary types.
static Type	USHORT Define secondary types.
static Type	UWORD Define the size of stack entries.
static Type	VOID Special dummy type for call and return.
static Type	WORD Define the size of stack entries.

Constructor Summary

Type(int asize, int osize, int code, String name)
Constructor.

Type(int asize, int osize, int code, Type primitive, String name)
Constructor.

Method Summary

int	getActivationSize() Get the activation record size.
Type	getPrimitiveType() Get the primitive version of the type.
int	getStructureSize() Get the structure size.
int	getTypeCode() Get the opcode code.
boolean	isOop() Test the type to see if it is an oop
boolean	isPointer() Test the type to see if it is a pointer
boolean	isPrimary() Test the type to see if it is a primary type.
boolean	isRef() Test the type to see if it is a reference
boolean	isSecondary() Test the type to see if it is a secondary type.
boolean	isSigned() Test the type to see if it is a signed type.
void	print() Prints to stderr information about this type.
String	toString() Gets the name of the type

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

Code_V

public static final int Code_V

Opcode subtype codes.

See Also:

Constant Field Values

Code_R

public static final int Code_R

Opcode subtype codes.

See Also:

Constant Field Values

Code_O

public static final int Code_O

Opcode subtype codes.

See Also:

Constant Field Values

Code_I

public static final int Code_I

Opcode subtype codes.

See Also:

Constant Field Values

Code_U

public static final int Code_U

Opcode subtype codes.

See Also:

Constant Field Values

Code_L

public static final int Code_L

Opcode subtype codes.

See Also:

Constant Field Values

Code_F

public static final int Code_F

Opcode subtype codes.

See Also:

Constant Field Values

Code_D

public static final int Code_D

Opcode subtype codes.

See Also:

Constant Field Values

Code_B

public static final int Code_B

Opcode subtype codes.

See Also:

Constant Field Values

Code_A

public static final int Code_A

Opcode subtype codes.

See Also:

Constant Field Values

Code_S

public static final int Code_S

Opcode subtype codes.

See Also:

Constant Field Values

Code_C

public static final int Code_C

Opcode subtype codes.

See Also:

Constant Field Values

Code_G

public static final int Code_G

Opcode subtype codes.

See Also:

Constant Field Values

REF

public static final Type REF

Define primary types.

OOP

public static final Type OOP

Define primary types.

INT

public static final Type INT

Define primary types.

UINT

public static final Type UINT

Define primary types.

LONG

public static final Type LONG

Define primary types.

ULONG

public static final Type ULONG

Define primary types.

FLOAT

public static final Type FLOAT

Define primary types.

DOUBLE

public static final Type DOUBLE

Define primary types.

BYTE

public static final Type BYTE

Define secondary types.

UBYTE

public static final Type UBYTE

Define secondary types.

SHORT

public static final Type SHORT

Define secondary types.

USHORT

public static final Type USHORT

Define secondary types.

VOID

public static final Type VOID

Special dummy type for call and return.

MP

public static final Type MP

Special dummy types for specifing the MP, IP and LP variables.

IP

public static final Type IP

Special dummy types for specifing the MP, IP and LP variables.

LP

public static final Type LP

Special dummy types for specifing the MP, IP and LP variables.

SS

public static final Type SS

Special dummy types for specifing the MP, IP and LP variables.

WORD

public static final Type WORD

Define the size of stack entries.

UWORD

public static final Type UWORD

Define the size of stack entries.

RELOC_ABSOLUTE_INT

public static final int RELOC_ABSOLUTE_INT

Relocation type for absolute int addresses.

See Also:

Constant Field Values

RELOC_RELATIVE_INT

public static final int RELOC_RELATIVE_INT

Relocation type for relative int addresses.

See Also:

Constant Field Values

Constructor Detail

Type

public Type(int asize,
            int osize,
            int code,
            String name)

Constructor.

Parameters:

asize - the size in words for this type in an activation record

osize - the size in bytes for this type in an object or array

code - the type code the form the bottom 4 bits of the IR opcodes

name - the name if the type

Type

public Type(int asize,
            int osize,
            int code,
            Type primitive,
            String name)

Constructor.

Parameters:

asize - the size in words for this type in an activation record

osize - the size in bytes for this type in an object or array

code - the type code the form the bottom 4 bits of the IR opcodes

primitive - type for this type

name - the name if the type

Method Detail

getActivationSize

public int getActivationSize()

Get the activation record size.

Returns:

the size in words for this type in an activation record

getStructureSize

public int getStructureSize()

Get the structure size.

Returns:

the size in bytes for this type in an object or array

getTypeCode

public int getTypeCode()

Get the opcode code.

Returns:

code the type code the form the bottom 4 bits of the IR opcodes

getPrimitiveType

public Type getPrimitiveType()

Get the primitive version of the type.

Returns:

the primitive the type for this type

isPointer

public boolean isPointer()

Test the type to see if it is a pointer

Returns:

true if it is

isOop

public boolean isOop()

Test the type to see if it is an oop

Returns:

true if it is

isRef

public boolean isRef()

Test the type to see if it is a reference

Returns:

true if it is

isPrimary

public boolean isPrimary()

Test the type to see if it is a primary type.

Returns:

true if it is a primary type, false otherwise.

isSecondary

public boolean isSecondary()

Test the type to see if it is a secondary type.

Returns:

true if it is a secondary type, false otherwise.

isSigned

public boolean isSigned()

Test the type to see if it is a signed type.

Returns:

true if it is a signed type, false otherwise.

toString

public String toString()

Gets the name of the type

Overrides:

toString in class Object

Returns:

a string representation of the object.

print

public void print()

Prints to stderr information about this type. This method is used for debuggging purposes.