at.dms.kjc
Class JMinusExpression

java.lang.Object
  at.dms.util.Utils
      at.dms.compiler.Phylum
          at.dms.kjc.JPhylum
              at.dms.kjc.JExpression
                  at.dms.kjc.JBinaryExpression
                      at.dms.kjc.JBinaryArithmeticExpression
                          at.dms.kjc.JMinusExpression

All Implemented Interfaces:

Constants, DeepCloneable, Finalizable, Serializable

public class JMinusExpression
extends JBinaryArithmeticExpression

This class implements '-' specific operations Plus operand may be String, numbers

See Also:

Serialized Form

Field Summary

Fields inherited from class at.dms.kjc.JBinaryExpression

left, right, type

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	JMinusExpression()
	JMinusExpression(TokenReference where, JExpression left, JExpression right) Construct a node in the parsing tree This method is directly called by the parser

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) Analyses the expression (semantically).
double	compute(double left, double right) Computes the result of the operation at compile-time (JLS 15.28).
float	compute(float left, float right) Computes the result of the operation at compile-time (JLS 15.28).
int	compute(int left, int right) Computes the result of the operation at compile-time (JLS 15.28).
long	compute(long left, long right) Computes the result of the operation at compile-time (JLS 15.28).
static CType	computeType(CType leftType, CType rightType) compute the type of this expression according to operands
Object	deepClone() Returns a deep clone of this object.
protected void	deepCloneInto(JMinusExpression other) Clones all fields of this into
void	genCode(CodeSequence code, boolean discardValue) Generates JVM bytecode to evaluate this expression.
static int	getOpcode(CType type)
CType	getType() Returns the type of this expression (call after parsing only)
String	toString()

Methods inherited from class at.dms.kjc.JBinaryArithmeticExpression

computeType, constantFolding, deepCloneInto

Methods inherited from class at.dms.kjc.JBinaryExpression

deepCloneInto, genBooleanResultCode, genBranch, genBranch, getLeft, getRight, setLeft, setRight, setType

Methods inherited from class at.dms.kjc.JExpression

booleanValue, byteValue, charValue, convertType, convertType, deepCloneInto, doubleValue, fail, floatValue, genEndStoreCode, genStartStoreCode, getIdent, getLiteral, intValue, isAssignableTo, isConstant, isDynamic, isFinal, isInitialized, isLValue, isStatementExpression, 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

Constructor Detail

JMinusExpression

protected JMinusExpression()

JMinusExpression

public JMinusExpression(TokenReference where,
                        JExpression left,
                        JExpression right)

Construct a node in the parsing tree This method is directly called by the parser

Parameters:

where - the line of this node in the source code

left - the left operand

right - the right operand

Method Detail

toString

public String toString()

Overrides:

toString in class Object

analyse

public JExpression analyse(CExpressionContext context)
                    throws PositionedError

Analyses the expression (semantically).

Specified by:

analyse in class JBinaryArithmeticExpression

Parameters:

context - the analysis context

Returns:

an equivalent, analysed expression

Throws:

PositionedError - the analysis detected an error

computeType

public static CType computeType(CType leftType,
                                CType rightType)
                         throws UnpositionedError

compute the type of this expression according to operands

Parameters:

leftType - the type of left operand

rightType - the type of right operand

Returns:

the type computed for this binary operation

Throws:

UnpositionedError - this error will be positioned soon

getType

public CType getType()

Description copied from class: JExpression

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

Overrides:

getType in class JBinaryExpression

Returns:

the type of this expression

compute

public int compute(int left,
                   int right)

Computes the result of the operation at compile-time (JLS 15.28).

Overrides:

compute in class JBinaryArithmeticExpression

Parameters:

left - the first operand

right - the seconds operand

Returns:

the result of the operation

compute

public long compute(long left,
                    long right)

Computes the result of the operation at compile-time (JLS 15.28).

Overrides:

compute in class JBinaryArithmeticExpression

Parameters:

left - the first operand

right - the seconds operand

Returns:

the result of the operation

compute

public float compute(float left,
                     float right)

Computes the result of the operation at compile-time (JLS 15.28).

Overrides:

compute in class JBinaryArithmeticExpression

Parameters:

left - the first operand

right - the seconds operand

Returns:

the result of the operation

compute

public double compute(double left,
                      double right)

Computes the result of the operation at compile-time (JLS 15.28).

Overrides:

compute in class JBinaryArithmeticExpression

Parameters:

left - the first operand

right - the seconds operand

Returns:

the result of the operation

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

getOpcode

public static int getOpcode(CType type)

Parameters:

type - the type of result

Returns:

the type of opcode for this operation

genCode

public void genCode(CodeSequence code,
                    boolean discardValue)

Generates JVM bytecode to evaluate this expression.

Specified by:

genCode in class JExpression

Parameters:

code - the bytecode sequence

discardValue - discard the result of the evaluation ?

deepClone

public Object deepClone()

Returns a deep clone of this object.

Specified by:

deepClone in interface DeepCloneable

Overrides:

deepClone in class JBinaryArithmeticExpression

deepCloneInto

protected void deepCloneInto(JMinusExpression other)

Clones all fields of this into

other