at.dms.kjc
Class JNewObjectExpression

java.lang.Object
  |
  +--at.dms.util.Utils
        |
        +--at.dms.compiler.Phylum
              |
              +--at.dms.kjc.JPhylum
                    |
                    +--at.dms.kjc.JExpression
                          |
                          +--at.dms.kjc.JNewObjectExpression
All Implemented Interfaces:
Constants, Constants
Direct Known Subclasses:
JNewAnonymousClassExpression

public class JNewObjectExpression
extends JExpression

This class represents a new allocation expression 'new toto(1)'


Field Summary
protected  JExpression[] args
          Arguments to the constructor.
protected  CMethod constructor
          The constructor to invoke.
protected  JExpression explicitThis
          If the class to instantiate is an inner class, an explicit-this expression, if present, supplies the outer-class instance to the inner class.
protected  java.lang.String identifier
          If an explicit this is given, then the class to construct cannot be resolved very early, since it must be resolved in the scope of the type of the explicitThis expression; so then the identifier is stored here and when the type of explicitThis is known, the identifier is looked up as the name of an inner class in the type of explicitThis.
protected  CClass local
          The class in which this new-object expression occurs.
protected  CClassType type
          The class to construct.
 
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
JNewObjectExpression(TokenReference where, CClassType objectType, JExpression explicitThis, java.lang.String identifier, JExpression[] args)
          Construct a node in the parsing tree.
 
Method Summary
 void accept(KjcVisitor p)
          Accepts the specified visitor
protected  JExpression checkCall(CExpressionContext context, CType[] argsType)
          ...
 JExpression checkExpression(CExpressionContext context)
          Check expression and evaluate and alter context.
protected  CType[] checkTypes(CExpressionContext context)
          ...
 void genCode(CodeSequence code)
          Generates a sequence of bytecodes.
 CType getType()
          Compute the type of this expression.
 boolean isStatementExpression()
          Returns true iff this expression can be used as a statement.
 boolean isSubTypePossible()
          Returns false, since a new-object expression alway returns objects of exactly the type return in the type property of this JNewObjectExpression.
 
Methods inherited from class at.dms.kjc.JExpression
checkExpression, convertType, fail, genBranch, getBooleanLiteral, getLiteral, getNumberLiteral, getOrdinalLiteral, getRealLiteral, getStringLiteral, isAssignableTo, isConstant, isLiteral, 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
 

Field Detail

explicitThis

protected JExpression explicitThis
If the class to instantiate is an inner class, an explicit-this expression, if present, supplies the outer-class instance to the inner class.

identifier

protected java.lang.String identifier
If an explicit this is given, then the class to construct cannot be resolved very early, since it must be resolved in the scope of the type of the explicitThis expression; so then the identifier is stored here and when the type of explicitThis is known, the identifier is looked up as the name of an inner class in the type of explicitThis.

args

protected JExpression[] args
Arguments to the constructor.

type

protected CClassType type
The class to construct.

local

protected CClass local
The class in which this new-object expression occurs.

constructor

protected CMethod constructor
The constructor to invoke.
Constructor Detail

JNewObjectExpression

public JNewObjectExpression(TokenReference where,
                            CClassType objectType,
                            JExpression explicitThis,
                            java.lang.String identifier,
                            JExpression[] args)
Construct a node in the parsing tree.
Parameters:
where - The line of this node in the source code.
objectType - The type of this object allocator.
explicitThis - An explicit this reference for outerInstance.new InnerClass() kind-of invocations.
args - Parameters to be passed to constructor.
Method Detail

getType

public CType getType()
Compute the type of this expression. Called after parsing.
Overrides:
getType in class JExpression
Returns:
the type of this expression.

isSubTypePossible

public boolean isSubTypePossible()
Returns false, since a new-object expression alway returns objects of exactly the type return in the type property of this JNewObjectExpression. Returns whether this expression can result in subtypes of the type returned by the getType() method, or whether it always returns the exact type returned by getType(). The return value of this method has no meaning unless getType() returns a Class-type. (CType.isClassType())
Overrides:
isSubTypePossible in class JExpression

isStatementExpression

public boolean isStatementExpression()
Returns true iff this expression can be used as a statement. (JLS 14.7)
Overrides:
isStatementExpression in class JExpression

checkExpression

public JExpression checkExpression(CExpressionContext context)
                            throws PositionedError
Check expression and evaluate and alter context.
Overrides:
checkExpression in class JExpression
Parameters:
context - The actual context of analyse.
Returns:
A pure java expression including promote node.
Throws:
PositionedError - If the check fails.

checkCall

protected JExpression checkCall(CExpressionContext context,
                                CType[] argsType)
                         throws PositionedError
...

checkTypes

protected CType[] checkTypes(CExpressionContext context)
                      throws PositionedError
...

accept

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

genCode

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