org.jmlspecs.checker
Class JmlPredicate

java.lang.Object
  org.multijava.util.Utils
      org.multijava.util.compiler.Phylum
          org.multijava.mjc.JPhylum
              org.multijava.mjc.JExpression
                  org.jmlspecs.checker.JmlPredicate

All Implemented Interfaces:

Cloneable, Constants, Constants, PhylumType

Direct Known Subclasses:

JmlPredicateKeyword, RacPredicate

public class JmlPredicate

extends JExpression

This represents the AST node for a predicate in JML.

Field Summary
private  boolean	purityChecked
private  JmlSpecExpression	specExpression

 

Fields inherited from class org.multijava.mjc.JExpression

EMPTY

 

Fields inherited from class org.multijava.util.compiler.Phylum

 

Fields inherited from class org.multijava.util.Utils

DBG_LEVEL_HIGH, DBG_LEVEL_LOW, DBG_LEVEL_NO

 

Fields inherited from interface org.multijava.mjc.Constants

ACC_MODIFIER_FLAGS_MASK, ACC_NON_NULL, ACC_NON_NULL_BY_DEFAULT, ACC_NULLABLE, ACC_NULLABLE_BY_DEFAULT, ACC_PURE, ACCESS_FLAG_ARRAY, ACCESS_FLAG_NAMES, AMID_JAVA_MATH, AMID_MAX, AMID_SAFE_MATH, CMP_VERSION, IMPLICITLY_NON_NULL, JAV_ASSERTION_ERROR, JAV_CLASS, JAV_CLASSLOADER, JAV_CLASSNOTFOUND_EXCEPTION, JAV_CLONE, JAV_CLONEABLE, JAV_CONSTRUCTOR, JAV_ERROR, JAV_EXCEPTION, JAV_INIT, JAV_LENGTH, JAV_NAME_SEPARATOR, JAV_NOCLASSDEFFOUND_ERROR, JAV_OBJECT, JAV_OUTER_THIS, JAV_RMJ_RUNTIME_EXCEPTION, JAV_RUNTIME, JAV_RUNTIME_EXCEPTION, JAV_SERIALIZABLE, JAV_STATIC_INIT, JAV_STRING, JAV_STRINGBUFFER, JAV_SUPER, JAV_THIS, JAV_THROWABLE, MJ_ANCHOR, NULLITY_MODS, OPE_BAND, OPE_BNOT, OPE_BOR, OPE_BSR, OPE_BXOR, OPE_EQ, OPE_GE, OPE_GT, OPE_LAND, OPE_LE, OPE_LNOT, OPE_LOR, 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_MAX, TID_SHORT, TID_VOID, UNIV_ARRAY_TMP, UNIV_TMP

 

Fields inherited from interface org.multijava.util.classfile.Constants

ACC_ABSTRACT, ACC_FINAL, ACC_INTERFACE, ACC_NATIVE, ACC_PRIVATE, ACC_PROTECTED, ACC_PUBLIC, ACC_STATIC, ACC_STRICT, ACC_SUPER, ACC_SYNCHRONIZED, ACC_SYNTHETIC, ACC_TRANSIENT, ACC_VOLATILE, ATT_ANCHOR, ATT_BRIDGE, ATT_CODE, ATT_CONSTANTVALUE, ATT_DEPRECATED, ATT_DISPATCHER, ATT_EXCEPTIONS, ATT_GENERIC, ATT_GENERIC_FUNCTIONS, ATT_INNERCLASSES, ATT_LINENUMBERTABLE, ATT_LOCALVARIABLETABLE, ATT_MM_BODY, ATT_REDIRECTOR, ATT_RMJ_GLUE, ATT_RMJ_SIGNATURE, ATT_RUNTIME_VISIBLE_ANNOTATIONS, ATT_RUNTIME_VISIBLE_PARAMETER_ANNOTATIONS, ATT_SIGNATURE, ATT_SOURCEFILE, ATT_SYNTHETIC, ATT_UNIVERSE_FIELD, ATT_UNIVERSE_METHOD, ATT_UNIVERSE_VERSION, 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_dup2, opc_dup2_x1, opc_dup2_x2, opc_dup_x1, opc_dup_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_ldc2_w, opc_ldc_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

JmlPredicate(JmlSpecExpression specExpression)

 

Method Summary
void	accept(MjcVisitor p)           Accepts the specified visitor.
void	genCode(CodeSequence code)
Object[]	getFANonNulls(CContextType context)           Returns a list of expressions known to be non-null (null) in this context
Object[]	getFANulls(CContextType context)           Returns a list of expressions known to be null if this evaluates to false.
CType	getType()
boolean	isNonNull(CContextType context)           Returns true iff the value represented by this expression is non-null
boolean	isSameKeyword()
boolean	purityChecked()           Returns true if the purity of this spec expression has already been performed.
void	setPurityChecked()           Indicates the the purity of this spec expression has already been performed.
JmlSpecExpression	specExpression()
String	toString()
JExpression	typecheck(CExpressionContextType context)           Typechecks this JML predicate in the context of the given context, context.
JExpression	typecheck(CExpressionContextType context, long privacy)           Typechecks this JML predicate in the context of the given context, context.

 

Methods inherited from class org.multijava.mjc.JExpression

buildUniverseDynChecks, clone, convertType, dumpArray, fail, genBranch, genUniverseDynCheckCode, getApparentType, getBooleanLiteral, getLiteral, getNumberLiteral, getOrdinalLiteral, getRealLiteral, getStringLiteral, isAssignableTo, isBooleanLiteral, isConstant, isDeclaredNonNull, isLiteral, isMaybeInitializable, isOrdinalLiteral, isRealLiteral, isStatementExpression, isStringLiteral, typecheck, unParenthesize

 

Methods inherited from class org.multijava.mjc.JPhylum

check, check, check, check, fail, fail, warn, warn, warn, warn

 

Methods inherited from class org.multijava.util.compiler.Phylum

getTokenReference, setTokenReference

 

Methods inherited from class org.multijava.util.Utils

assertTrue, assertTrue, combineArrays, escapeString, escapeString, fail, fail, getFilePath, hasFlag, hasOtherFlags, parsePathParts, relativePathTo, splitQualifiedName, splitQualifiedName, stripJavaModifiers, stripNonJavaModifiers, stripPrivateModifier, unescapeString, vectorToArray, vectorToIntArray

 

Methods inherited from class java.lang.Object

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

 

Field Detail

specExpression

private JmlSpecExpression specExpression

purityChecked

private boolean purityChecked

JmlPredicate

public JmlPredicate(JmlSpecExpression specExpression)

isSameKeyword

public boolean isSameKeyword()

specExpression

public JmlSpecExpression specExpression()

getType

public CType getType()

Description copied from class: JExpression

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

purityChecked

public boolean purityChecked()

Returns true if the purity of this spec expression has already been performed.

setPurityChecked

public void setPurityChecked()

Indicates the the purity of this spec expression has already been performed.

accept

public void accept(MjcVisitor p)

Accepts the specified visitor.

Parameters:

p - the visitor

isNonNull

public boolean isNonNull(CContextType context)

Returns true iff the value represented by this expression is non-null

Overrides:

isNonNull in class JExpression

getFANonNulls

public Object[] getFANonNulls(CContextType context)

Returns a list of expressions known to be non-null (null) in this context

Overrides:

getFANonNulls in class JExpression

getFANulls

public Object[] getFANulls(CContextType context)

Description copied from class: JExpression

Returns a list of expressions known to be null if this evaluates to false. Should only be called on boolean expressions.

Overrides:

getFANulls in class JExpression

typecheck

public JExpression typecheck(CExpressionContextType context,
                             long privacy)
                      throws PositionedError

Typechecks this JML predicate in the context of the given context, context. Also, performs visibility and purity checks in the specification context of visibility, privacy.

 requires context != null;
 

Throws:

PositionedError

typecheck

public JExpression typecheck(CExpressionContextType context)
                      throws PositionedError

Typechecks this JML predicate in the context of the given context, context.

Throws:

PositionedError

genCode

public void genCode(CodeSequence code)

Description copied from class: JExpression

Generates a sequence of bytecodes

toString

public String toString()

Overrides:

toString in class Object