at.dms.kjc.sir
Class SIRPeekExpression

java.lang.Object
  at.dms.util.Utils
      at.dms.compiler.Phylum
          at.dms.kjc.JPhylum
              at.dms.kjc.JExpression
                  at.dms.kjc.sir.SIRPeekExpression

All Implemented Interfaces:

Constants, DeepCloneable, Finalizable, Serializable

public class SIRPeekExpression
extends JExpression

This represents a peek expression.

See Also:

Serialized Form

Field Summary

protected JExpression	arg The argument to the peek expression--the index of the item to peek.
protected CType	tapeType Type of the item to peek.

Fields inherited from class at.dms.kjc.JExpression

EMPTY

Fields inherited from class at.dms.util.Utils

EMPTY_LIST, getForLoopCallers

Fields inherited from interface at.dms.kjc.Constants

CMP_VERSION, JAV_CLASS, JAV_CLONE, JAV_CLONEABLE, JAV_CONSTRUCTOR, JAV_ERROR, JAV_EXCEPTION, JAV_INIT, JAV_LENGTH, JAV_NAME_SEPARATOR, JAV_OBJECT, JAV_OUTER_THIS, JAV_RUNTIME, JAV_RUNTIME_EXCEPTION, JAV_STATIC_INIT, JAV_STRING, JAV_STRINGBUFFER, JAV_THIS, JAV_THROWABLE, OPE_BAND, OPE_BNOT, OPE_BOR, OPE_BSR, OPE_BXOR, OPE_EQ, OPE_GE, OPE_GT, OPE_LE, OPE_LNOT, OPE_LT, OPE_MINUS, OPE_NE, OPE_PERCENT, OPE_PLUS, OPE_POSTDEC, OPE_POSTINC, OPE_PREDEC, OPE_PREINC, OPE_SIMPLE, OPE_SL, OPE_SLASH, OPE_SR, OPE_STAR, TID_ARRAY, TID_BIT, TID_BOOLEAN, TID_BYTE, TID_CHAR, TID_CLASS, TID_DOUBLE, TID_FLOAT, TID_INT, TID_LONG, TID_SHORT, TID_VECTOR, TID_VOID, VECTOR_EMPTY

Fields inherited from interface at.dms.classfile.Constants

ACC_ABSTRACT, ACC_FINAL, ACC_INLINE, ACC_INTERFACE, ACC_NATIVE, ACC_PRIVATE, ACC_PROTECTED, ACC_PUBLIC, ACC_STATIC, ACC_STRICT, ACC_SUPER, ACC_SYNCHRONIZED, ACC_TRANSIENT, ACC_VOLATILE, ATT_CODE, ATT_CONSTANTVALUE, ATT_DEPRECATED, ATT_EXCEPTIONS, ATT_GENERIC, ATT_INNERCLASSES, ATT_LINENUMBERTABLE, ATT_LOCALVARIABLETABLE, ATT_SOURCEFILE, ATT_SYNTHETIC, CST_CLASS, CST_DOUBLE, CST_FIELD, CST_FLOAT, CST_INTEGER, CST_INTERFACEMETHOD, CST_LONG, CST_METHOD, CST_NAMEANDTYPE, CST_STRING, CST_UTF8, ENV_DEBUG_MODE, ENV_USE_CACHE, JAVA_MAGIC, JAVA_MAJOR, JAVA_MINOR, MAX_CODE_PER_METHOD, 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_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_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_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_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_wide, opc_xxxunusedxxx, POO_ASCII_CONSTANT, POO_CLASS_CONSTANT, POO_DOUBLE_CONSTANT, POO_FLOAT_CONSTANT, POO_INTEGER_CONSTANT, POO_LONG_CONSTANT, POO_NAT_CONSTANT, POO_REF_CONSTANT, POO_STRING_CONSTANT, TYP_ADDRESS, TYP_DOUBLE, TYP_FLOAT, TYP_INT, TYP_LONG, TYP_REFERENCE, TYP_VOID

Constructor Summary

protected	SIRPeekExpression() No argument constructor, FOR AUTOMATIC CLONING ONLY.
	SIRPeekExpression(JExpression arg) Construct a node in the parsing tree with null TokenReference
	SIRPeekExpression(JExpression arg, CType tapeType)
	SIRPeekExpression(TokenReference where, JExpression arg) Construct a node in the parsing tree

Method Summary

Object	accept(AttributeVisitor p) Accepts the specified attribute visitor.
<S,T> S	accept(ExpressionVisitor<S,T> p, T o) Accepts the specified visitor
void	accept(KjcVisitor p) Accepts the specified visitor.
JExpression	analyse(CExpressionContext context) Throws an exception (NOT SUPPORTED YET)
Object	deepClone() Returns a deep clone of this object.
protected void	deepCloneInto(SIRPeekExpression other) Clones all fields of this into
void	genCode(CodeSequence code, boolean discardValue) Generates JVM bytecode to evaluate this expression.
JExpression	getArg() Returns the argument of this.
CType	getType() Returns the type of this expression (call after parsing only)
boolean	isStatementExpression() Returns true iff this expression can be used as a statement (JLS 14.8)
void	setArg(JExpression arg) Sets the arg of this.
void	setTapeType(CType type) Sets the type of the tape being peeked at
void	setType(CType type) Set the type of this expression.
String	toString() Generates a nice readable version of the PeekExpression.

Methods inherited from class at.dms.kjc.JExpression

booleanValue, byteValue, charValue, convertType, convertType, deepCloneInto, doubleValue, fail, floatValue, genBranch, genEndStoreCode, genStartStoreCode, getIdent, getLiteral, intValue, isAssignableTo, isConstant, isDynamic, isFinal, isInitialized, isLValue, longValue, setInitialized, shortValue, stringValue

Methods inherited from class at.dms.kjc.JPhylum

assertMutable, check, check, check, check, deepCloneInto, setLineNumber

Methods inherited from class at.dms.compiler.Phylum

deepCloneInto, getTokenReference, setTokenReference

Methods inherited from class at.dms.util.Utils

asPercent, cellMathEquivalent, cMathEquivalent, cppMathEquivalent, deepCloneInto, equalArrays, fail, getEnvironmentVariable, getExpression, hasPeeks, initArray, initArray, initLiteralArray, intArrayToList, isMathMethod, isUniform, kopi_assert, kopi_assert, makeCountdownForLoop, makeDotFileName, makeForLoop, makeForLoop, makeForLoop, makeForLoopFieldIndex, makeForLoopLocalIndex, nextPow2, passThruParens, peelMarkers, popBeforePeek, readFile, removeUnusedPops, replaceAll, setupDotFileName, simplifyMathMethod, splitQualifiedName, splitQualifiedName, toArray, toIntArray, toVector, voidToInt, writeFile

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

arg

protected JExpression arg

The argument to the peek expression--the index of the item to peek.

tapeType

protected CType tapeType

Type of the item to peek.

Constructor Detail

SIRPeekExpression

protected SIRPeekExpression()

No argument constructor, FOR AUTOMATIC CLONING ONLY.

SIRPeekExpression

public SIRPeekExpression(TokenReference where,
                         JExpression arg)

Construct a node in the parsing tree

Parameters:

where - the line of this node in the source code

arg - the argument of the call

SIRPeekExpression

public SIRPeekExpression(JExpression arg)

Construct a node in the parsing tree with null TokenReference

Parameters:

arg - the argument of the call

SIRPeekExpression

public SIRPeekExpression(JExpression arg,
                         CType tapeType)

Method Detail

setTapeType

public void setTapeType(CType type)

Sets the type of the tape being peeked at

Parameters:

type - the type of the tape

setType

public void setType(CType type)

Description copied from class: JExpression

Set the type of this expression. Added 2006-12-20 Use with extreme caution Currently used when recreating expressions to copy type from old expression to recreated expression.

Specified by:

setType in class JExpression

Parameters:

type - the CType to set.

setArg

public void setArg(JExpression arg)

Sets the arg of this.

getArg

public JExpression getArg()

Returns the argument of this.

getType

public CType getType()

Description copied from class: JExpression

Returns the type of this expression (call after parsing only)

Specified by:

getType in class JExpression

Returns:

the type of this expression

isStatementExpression

public boolean isStatementExpression()

Returns true iff this expression can be used as a statement (JLS 14.8)

Overrides:

isStatementExpression in class JExpression

analyse

public JExpression analyse(CExpressionContext context)
                    throws PositionedError

Throws an exception (NOT SUPPORTED YET)

Specified by:

analyse in class JExpression

Parameters:

context - the analysis context

Returns:

an equivalent, analysed expression

Throws:

PositionedError - the analysis detected an error

accept

public void accept(KjcVisitor p)

Accepts the specified visitor.

Specified by:

accept in class JExpression

Parameters:

p - the visitor

accept

public Object accept(AttributeVisitor p)

Accepts the specified attribute visitor.

Specified by:

accept in class JExpression

Parameters:

p - the visitor

Returns:

data to pass back up

accept

public <S,T> S accept(ExpressionVisitor<S,T> p,
                      T o)

Accepts the specified visitor

Specified by:

accept in class JExpression

Type Parameters:

S - output type

T - auxilliary input type

Parameters:

p - the visitor

o - object containing extra data to be passed to visitor

Returns:

object containing data generated by visitor

genCode

public void genCode(CodeSequence code,
                    boolean discardValue)

Generates JVM bytecode to evaluate this expression. NOT SUPPORTED YET.

Specified by:

genCode in class JExpression

Parameters:

code - the bytecode sequence

discardValue - discard the result of the evaluation ?

toString

public String toString()

Generates a nice readable version of the PeekExpression.

Overrides:

toString in class Object

deepClone

public Object deepClone()

Returns a deep clone of this object.

Specified by:

deepClone in interface DeepCloneable

Overrides:

deepClone in class JExpression

deepCloneInto

protected void deepCloneInto(SIRPeekExpression other)

Clones all fields of this into

other