jml2b.formula
Class TriaryForm

java.lang.Object
  jml2b.util.Profiler
      jml2b.formula.Formula
          jml2b.formula.TriaryForm

All Implemented Interfaces:

IFormToken, java.io.Serializable

Direct Known Subclasses:

JavaTriaryForm

public class TriaryForm

extends Formula

This class implements tri-ary formula, that is conditional formula coming from the Java structure a ? b : c or equals with restricted domains formulas. The token associated with those formulas can be

• Ja_QUESTION
• EQUALS_RESTRICT_DOM
• EQUAL_SUBSTRACTION_DOM

Author:

L. Burdy

See Also:

Serialized Form

Field Summary

Fields inherited from interface jml2b.formula.IFormToken

ARRAY_ACCESS, ARRAY_RANGE, B_ACCOLADE, B_APPLICATION, B_ARRAY_EQUALS, B_BOOL, B_BTRUE, B_COUPLE, B_DOM, B_FUNCTION_EQUALS, B_IN, B_INTERVAL, B_OVERRIDING, B_SET_EQUALS, B_SUBSTRACTION_DOM, B_UNION, CONSTANT_FUNCTION, CONSTANT_FUNCTION_FUNCTION, EQUALS_ON_OLD_INSTANCES, EQUALS_ON_OLD_INSTANCES_ARRAY, FINAL_IDENT, GUARDED_SET, INTERSECTION_IS_NOT_EMPTY, IS_ARRAY, IS_MEMBER_FIELD, IS_STATIC_FIELD, Ja_ADD_OP, Ja_AND_OP, Ja_CHAR_LITERAL, Ja_COMMA, Ja_DIFFERENT_OP, Ja_DIV_OP, Ja_EQUALS_OP, Ja_GE_OP, Ja_GREATER_OP, Ja_IDENT, Ja_JAVA_BUILTIN_TYPE, Ja_LE_OP, Ja_LESS_OP, Ja_LITERAL_false, Ja_LITERAL_null, Ja_LITERAL_super, Ja_LITERAL_this, Ja_LITERAL_true, Ja_LNOT, Ja_MOD, Ja_MUL_OP, Ja_NEGATIVE_OP, Ja_NUM_INT, Ja_OR_OP, Ja_QUESTION, Ja_STRING_LITERAL, Ja_UNARY_NUMERIC_OP, Jm_AND_THEN, Jm_EXISTS, Jm_FORALL, Jm_IMPLICATION_OP, Jm_IS_SUBTYPE, Jm_OR_ELSE, Jm_T_OLD, Jm_T_RESULT, Jm_T_TYPE, LOCAL_ELEMENTS_DECL, LOCAL_VAR_DECL, MODIFIED_FIELD, NEW_OBJECT, T_CALLED_OLD, T_TYPE, T_VARIANT_OLD, toString

Constructor Summary

TriaryForm(byte nodeType, Formula cond, Formula left, Formula right)
Constructs a question formula from three formulas.

TriaryForm(TriaryForm f)

Method Summary

java.lang.Object	clone() Clones the formula.
int	contains(java.util.Vector selectedFields)
boolean	equals(java.lang.Object f) Returns whether the formula equals the parameter.
void	garbageIdent() Annotates all the fields that appear in the formula to declare them in the Atelier B files.
BasicType	getBasicType() Returns the type of a formula
Formula	getF1() Returns the f1.
void	getFields(java.util.Set fields) Collects the fields that occur in the formula.
Formula	getLeft() Returns the left.
Formula	getRight() Returns the right.
Formula	instancie(Formula b) Replaces this with the parameter in the expression.
boolean	is(Formula f) Returns whether the formula corresponds to a read formula.
boolean	isObvious(boolean atTheEnd) Returns whether a formula is obvious.
void	processIdent() Collects all the indentifier of a formula to give them an index in the identifer array.
void	save(IJml2bConfiguration config, IOutputStream s, IJmlFile jf) Saves the formula in a .jpo file
Formula	sub(Formula a, Formula b, boolean subInCalledOld) Applies a substitution on a formula.
Formula	subIdent(java.lang.String a, Formula b) Applies a substitution on a formula.
Formula	suppressSpecialOld(int token) Suppress the called old pragmas.

Methods inherited from class jml2b.formula.Formula

and, create, declarField, domainRestrict, getFalse, getNodeType, getNull, implies, indent, isBFalse, matchAEqualsNull, not, oldParam, or, renameParam, sub, toJava, toLang, toVector

Methods inherited from class jml2b.util.Profiler

runGC

Methods inherited from class java.lang.Object

getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

TriaryForm

public TriaryForm(TriaryForm f)

TriaryForm

public TriaryForm(byte nodeType,
                  Formula cond,
                  Formula left,
                  Formula right)

Constructs a question formula from three formulas.

Parameters:

cond - The condition formula

left - The formula corresponding to a valid condition

right - The formula corresponding to a unvalid condition

Method Detail

clone

public java.lang.Object clone()

Description copied from class: Formula

Clones the formula.

Specified by:

clone in class Formula

Returns:

the cloned formula

processIdent

public void processIdent()

Description copied from class: Formula

Collects all the indentifier of a formula to give them an index in the identifer array. This array is then analyzed to give short name when it is possible to identifiers.

Specified by:

processIdent in class Formula

See Also:

jml2b.pog.IdentifierResolver#bIdents

instancie

public Formula instancie(Formula b)

Description copied from class: Formula

Replaces this with the parameter in the expression.

Specified by:

instancie in class Formula

Parameters:

b - expression on which the method where the expression occurs is called.

Returns:

the modified expression

sub

public Formula sub(Formula a,
                   Formula b,
                   boolean subInCalledOld)

Description copied from class: Formula

Applies a substitution on a formula.

Specified by:

sub in class Formula

Parameters:

a - the substituted formula

b - the new formula

subInCalledOld - specify whether the substitution should also be applied in the called old construction

Returns:

the formula when the substitution has been applied.

suppressSpecialOld

public Formula suppressSpecialOld(int token)

Description copied from class: Formula

Suppress the called old pragmas. old pragma are substitued with called old into the specification of a called method in manner to be differentiated from the old pragma of the current method. After the treatment, the called old pragmas are suppressed.

Specified by:

suppressSpecialOld in class Formula

Returns:

the formula with suppressed called old pragmas

subIdent

public Formula subIdent(java.lang.String a,
                        Formula b)

Description copied from class: Formula

Applies a substitution on a formula.

Specified by:

subIdent in class Formula

Parameters:

a - the substituted string correspondingto an identifier

b - the new formula

Returns:

the formula when the substitution has been applied.

equals

public boolean equals(java.lang.Object f)

Description copied from class: Formula

Returns whether the formula equals the parameter.

Specified by:

equals in class Formula

Parameters:

f - the checked parameter

Returns:

true if the formula syntaxically equals the parameter, false otherwise

is

public boolean is(Formula f)

Description copied from class: Formula

Returns whether the formula corresponds to a read formula.

Specified by:

is in class Formula

Parameters:

f - a read formula coming from a jpo file

Returns:

true if the formula equals to the read formula, false otherwise.

contains

public int contains(java.util.Vector selectedFields)

Specified by:

contains in class Formula

isObvious

public boolean isObvious(boolean atTheEnd)

Description copied from class: Formula

Returns whether a formula is obvious.

Specified by:

isObvious in class Formula

Returns:

true if the formula is considered as obvious, false otherwise

save

public void save(IJml2bConfiguration config,
                 IOutputStream s,
                 IJmlFile jf)
          throws java.io.IOException

Description copied from class: Formula

Saves the formula in a .jpo file

Specified by:

save in class Formula

Parameters:

config -

s - the ouputstream corresponding to a jpo file

jf -

Throws:

java.io.IOException - when the formula cannot be saved.

garbageIdent

public void garbageIdent()

Description copied from class: Formula

Annotates all the fields that appear in the formula to declare them in the Atelier B files.

Specified by:

garbageIdent in class Formula

getFields

public void getFields(java.util.Set fields)

Description copied from class: Formula

Collects the fields that occur in the formula.

Specified by:

getFields in class Formula

Parameters:

fields - The set a collected fields.

getF1

public Formula getF1()

Returns the f1.

Returns:

Formula

getLeft

public Formula getLeft()

Returns the left.

Returns:

Formula

getRight

public Formula getRight()

Returns the right.

Returns:

Formula

getBasicType

public BasicType getBasicType()

Description copied from class: Formula

Returns the type of a formula

Specified by:

getBasicType in class Formula

Returns:

The basic type of ta formula.