at.dms.kjc
Class JMultExpression

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.JMultExpression
All Implemented Interfaces:
Constants, Constants

public class JMultExpression
extends JBinaryArithmeticExpression

A representation of the multiplication operator (JLS2 15.17.1)


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
DBG_LEVEL_HIGH, DBG_LEVEL_LOW, DBG_LEVEL_NO
 
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_BOOLEAN, TID_BYTE, TID_CHAR, TID_CLASS, TID_DOUBLE, TID_FLOAT, TID_INT, TID_LONG, TID_SHORT, TID_VOID
 
Fields inherited from interface at.dms.classfile.Constants
ACC_ABSTRACT, ACC_FINAL, ACC_INTERFACE, ACC_NATIVE, ACC_NBR_FLAGS, 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
JMultExpression(TokenReference where, JExpression left, JExpression right)
          Construct a node in the parsing tree.
 
Method Summary
 void accept(KjcVisitor p)
          Accepts the specified visitor
 JExpression checkBinaryBody(CExpressionContext context)
          Check expression and evaluate and alter context.
 double compute(double left, double right)
          Computes the result of the * operation on two double constant values.
 float compute(float left, float right)
          Computes the result of the * operation on two float constant values.
 int compute(int left, int right)
          Computes the result of the * operation on two integer constant values.
 long compute(long left, long right)
          Computes the result of the * operation on two long constant values.
 void genCode(CodeSequence code)
          Generates a sequence of bytecodes for this expression.
static int getOpcode(CType type)
          Returns the opcode for multiplication, depending on the type of the operands.
 
Methods inherited from class at.dms.kjc.JBinaryArithmeticExpression
checkExpression, computeType, constantFolding
 
Methods inherited from class at.dms.kjc.JBinaryExpression
genBooleanResultCode, genBranch, genBranch, getLeft, getRight, getType, promote, setLeft, setRight, setType
 
Methods inherited from class at.dms.kjc.JExpression
checkExpression, convertType, fail, getBooleanLiteral, getLiteral, getNumberLiteral, getOrdinalLiteral, getRealLiteral, getStringLiteral, isAssignableTo, isConstant, isLiteral, isStatementExpression, isSubTypePossible, setConstant, unParenthesize
 
Methods inherited from class at.dms.kjc.JPhylum
check, check, check, check
 
Methods inherited from class at.dms.compiler.Phylum
getTokenReference, setTokenReference
 
Methods inherited from class at.dms.util.Utils
assert, assert, fail, fail, hasFlag, hasMoreThanOneFlag, hasOtherFlags, splitQualifiedName, splitQualifiedName, vectorToArray, vectorToIntArray
 
Methods inherited from class java.lang.Object
, clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

JMultExpression

public JMultExpression(TokenReference where,
                       JExpression left,
                       JExpression right)
Construct a node in the parsing tree.
Parameters:
where - the line of this node in the source code
left - the left operand
right - the right operand
Method Detail

checkBinaryBody

public JExpression checkBinaryBody(CExpressionContext context)
                            throws PositionedError
Check expression and evaluate and alter context.
Overrides:
checkBinaryBody in class JBinaryArithmeticExpression
Parameters:
context - the actual context of analyse
Returns:
a pure java expression including promote node
Throws:
PositionedError - Any compilation-related errror with position information.

compute

public int compute(int left,
                   int right)
Computes the result of the * operation on two integer constant values.
Overrides:
compute in class JBinaryArithmeticExpression
Parameters:
left - the left operand
right - the right operand
Returns:
the result of the operation

compute

public long compute(long left,
                    long right)
Computes the result of the * operation on two long constant values.
Overrides:
compute in class JBinaryArithmeticExpression
Parameters:
left - the left operand
right - the right operand
Returns:
the result of the operation

compute

public float compute(float left,
                     float right)
Computes the result of the * operation on two float constant values.
Overrides:
compute in class JBinaryArithmeticExpression
Parameters:
left - the left operand
right - the right operand
Returns:
the result of the operation

compute

public double compute(double left,
                      double right)
Computes the result of the * operation on two double constant values.
Overrides:
compute in class JBinaryArithmeticExpression
Parameters:
left - the left operand
right - the right operand
Returns:
the result of the operation

accept

public void accept(KjcVisitor p)
Accepts the specified visitor
Overrides:
accept in class JExpression
Parameters:
p - the visitor

getOpcode

public static int getOpcode(CType type)
Returns the opcode for multiplication, depending on the type of the operands.
Parameters:
type - the type to which the operands are promoted.
Returns:
the opcode for this operation

genCode

public void genCode(CodeSequence code)
Generates a sequence of bytecodes for this expression.
Overrides:
genCode in class JExpression
Parameters:
code - the code list