jml2b.pog.proofobligation
Class MethodPO

java.lang.Object
  jml2b.util.Profiler
      jml2b.pog.proofobligation.ProofObligation
          jml2b.pog.proofobligation.SourceProofObligation
              jml2b.pog.proofobligation.MethodPO

All Implemented Interfaces:

IFormToken, jml.JmlDeclParserTokenTypes

Direct Known Subclasses:

ConstructorPO

public class MethodPO

extends SourceProofObligation

This class describes proof obligations for a method and facilities to calculate them.

Author:

L. Burdy

Field Summary

Fields inherited from class jml2b.pog.proofobligation.SourceProofObligation

methodCount

Fields inherited from interface jml.JmlDeclParserTokenTypes

ABRUPT_BEHAVIOR, ACCESSIBLE, ACCESSIBLE_KEYWORD, ACCESSIBLE_REDUNDANTLY, ACCESSIBLE_SEQ, ADDITIVE_ASSIGNMENT_OP, ADDITIVE_OP, AFFIRM_KEYWORD, ALSO, AND, ARRAY_DECLARATOR, ASGNABLE_SEQ, ASSERT, ASSERT_REDUNDANTLY, ASSIGN, ASSIGNABLE, ASSIGNABLE_KEYWORD, ASSIGNABLE_REDUNDANTLY, ASSUME, ASSUME_KEYWORD, ASSUME_REDUNDANTLY, AXIOM, BACKWARD_IMPLIES, BADCHAR, BAND, BAND_ASSIGN, BEHAVIOR, BITWISE_ASSIGNMENT_OP, BITWISE_OP, BNOT, BOR, BOR_ASSIGN, BREAKS, BREAKS_KEYWORD, BREAKS_REDUNDANTLY, BREAKS_SEQ, BSR, BSR_ASSIGN, BXOR, BXOR_ASSIGN, CALLABLE, CALLABLE_KEYWORD, CALLABLE_REDUNDANTLY, CALLABLE_SEQ, CASE, CAST, CHAR_LITERAL, CHOOSE, CHOOSE_IF, COLON, COMMA, CONJOINABLE_SPEC, CONSTRAINT, CONSTRAINT_KEYWORD, CONSTRAINT_REDUNDANTLY, CONSTRUCTOR, CONT_SEQ, CONTINUES, CONTINUES_KEYWORD, CONTINUES_REDUNDANTLY, DEC, DECREASES, DECREASES_REDUNDANTLY, DECREASING, DECREASING_KEYWORD, DECREASING_REDUNDANTLY, DEPENDS, DEPENDS_KEYWORD, DEPENDS_REDUNDANTLY, DIM_EXPRS, DIMS, DINFORMALLY, DIV, DIV_ASSIGN, DIV_SEQ, DIVERGES, DIVERGES_KEYWORD, DIVERGES_REDUNDANTLY, DOC_ATSIGN, DOC_ATSIGN_KEYWORD, DOC_AUTHOR, DOC_COMMENT, DOC_COMMENT_START, DOC_DEPRECATED, DOC_EXCEPTION, DOC_JML_SPECS, DOC_NL_WS, DOC_NON_EMPTY_TEXTLINE, DOC_NON_NL_WS, DOC_PARAM, DOC_RETURN, DOC_SEE, DOC_SERIAL, DOC_SERIALDATA, DOC_SERIALFIELD, DOC_SINCE, DOC_THROWS, DOC_UNKNOWN_KEYWORD, DOC_VERSION, DOT, DOT_DOT, ELSE, ENS_SEQ, ENSURES, ENSURES_KEYWORD, ENSURES_REDUNDANTLY, EOF, EQUAL, EQUALITY_OP, EQUIV, EQUIVALENCE_OP, ESC, EXAMPLE, EXCEPTIONAL_BEHAVIOR, EXCEPTIONAL_EXAMPLE, EXPONENT, EXSURES, EXSURES_REDUNDANTLY, EXT_ALSO, EXT_AND, FLOAT_SUFFIX, FOR, FOR_EXAMPLE, FOR_INIT, FOR_TEST, FOR_UPDATER, FORALL, GE, GHOST, GT, HENCE_BY, HENCE_BY_KEYWORD, HENCE_BY_REDUNDANTLY, HEX_DIGIT, IDENT, IGNORED_AT_IN_COMMENT, IMPLICATION_OP, IMPLIES_THAT, INC, INFORMAL_DESCRIPTION, INIT, INITIALIZER, INITIALLY, INSTANCE, INSTANCE_INIT, INVARIANT, INVARIANT_KEYWORD, INVARIANT_REDUNDANTLY, IS_SUBTYPE_OF, JAVA_BUILTIN_TYPE, JAVA_MODIFIER, JML_BACKSLASH_SEQUENCE, JML_MODIFIER, L_ARROW, LABEL, LABEL_KEYWORD, LAND, LBRACK, LCURLY, LCURLY_VBAR, LE, LET, LETOLD_KEYWORD, LIMPLIES, LITERAL_abstract, LITERAL_assert, LITERAL_boolean, LITERAL_break, LITERAL_byte, LITERAL_case, LITERAL_catch, LITERAL_char, LITERAL_class, LITERAL_const, LITERAL_continue, LITERAL_default, LITERAL_do, LITERAL_double, LITERAL_else, LITERAL_extends, LITERAL_false, LITERAL_final, LITERAL_finally, LITERAL_float, LITERAL_for, LITERAL_if, LITERAL_implements, LITERAL_import, LITERAL_instanceof, LITERAL_int, LITERAL_interface, LITERAL_long, LITERAL_native, LITERAL_new, LITERAL_null, LITERAL_package, LITERAL_private, LITERAL_protected, LITERAL_public, LITERAL_return, LITERAL_short, LITERAL_static, LITERAL_strictfp, LITERAL_super, LITERAL_switch, LITERAL_synchronized, LITERAL_this, LITERAL_throw, LITERAL_throws, LITERAL_transient, LITERAL_true, LITERAL_try, LITERAL_void, LITERAL_volatile, LITERAL_while, LNOT, LOGICAL_OP, LOOP_ASGNABLE_SEQ, LOOP_ASSIGNABLE_KEYWORD, LOOP_EXSURES, LOOP_INV_SEQ, LOOP_INVARIANT, LOOP_INVARIANT_REDUNDANTLY, LOOP_MODIFIES, LOOP_SIG_SEQ, LOR, LPAREN, LT, MAINTAINING, MAINTAINING_KEYWORD, MAINTAINING_REDUNDANTLY, MEASURED_BY, MEASURED_BY_KEYWORD, MEASURED_BY_REDUNDANTLY, METH, MINUS, MINUS_ASSIGN, ML_COMMENT, MOD, MOD_ASSIGN, MODEL, MODEL_PROGRAM, MODIFIABLE, MODIFIABLE_REDUNDANTLY, MODIFIER_SET, MODIFIES, MODIFIES_REDUNDANTLY, MONITORED, MONITORED_BY, MULTIPLICATIVE_ASSIGNMENT_OP, MULTIPLICATIVE_OP, NESTED_CLASS, NL_WS, NON_NL_WS, NON_NULL, NORMAL_BEHAVIOR, NORMAL_EXAMPLE, NOT_EQUAL, NOT_EQUIV, NOWARN_LABEL, NOWARN_LABEL_LIST, NULL_TREE_LOOKAHEAD, NUM_FLOAT, NUM_INT, OLD, OR, PARAM, PLUS, PLUS_ASSIGN, POST, POST_DEC, POST_INC, POST_INCREMENT_OP, POST_REDUNDANTLY, PRE, PRE_INCREMENT_OP, PRE_REDUNDANTLY, PRIVACY_MODIFIER, PURE, QUANT_VARS, QUANTIFIED_EXPR, QUANTIFIER_TOKEN, QUESTION, R_ARROW, RBRACK, RCURLY, READABLE_IF, REFINE, RELATIONAL_OP, REPLACE, REPRESENTS, REPRESENTS_KEYWORD, REPRESENTS_REDUNDANTLY, REQUIRES, REQUIRES_KEYWORD, REQUIRES_REDUNDANTLY, RETURNS, RETURNS_KEYWORD, RETURNS_REDUNDANTLY, RETURNS_SEQ, RPAREN, SEMI, SET, SET_COMPR, SHIFT_ASSIGNMENT_OP, SHIFT_OP, SIG_SEQ, SIGNALS, SIGNALS_KEYWORD, SIGNALS_REDUNDANTLY, SL, SL_ASSIGN, SL_COMMENT, SPEC_CASE, SPEC_PROTECTED, SPEC_PUBLIC, SPEC_SL_COMMENT, SPEC_STATEMENT, SR, SR_ASSIGN, STAR, STAR_ASSIGN, STAR_ELEMS, STATIC_INITIALIZER, STRING_LITERAL, SUBCLASSING_CONTRACT, T_ELEMTYPE, T_EVERYTHING, T_EXISTS, T_FIELDS_OF, T_FORALL, T_FRESH, T_INVARIANT_FOR, T_IS_INITIALIZED, T_LBLNEG, T_LBLPOS, T_LOCKSET, T_MAX, T_MIN, T_NONNULLELEMENTS, T_NOT_MODIFIED, T_NOT_SPECIFIED, T_NOTHING, T_NUM_OF, T_OLD, T_OTHER, T_PRODUCT, T_REACH, T_RESULT, T_SUCH_THAT, T_SUM, T_TYPE, T_TYPEOF, T_TYPEOFALLTYPES, UNARY_NUMERIC_OP, UNINITIALIZED, UNREACHABLE, VAR_DECL, VBAR_RCURLY, VF_SEQ, VOCAB, WEAKLY, WHEN, WHEN_KEYWORD, WHEN_REDUNDANTLY, WS

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

MethodPO(Class c, Method m, Formula h1, Formula h2, ColoredInfo box, Statement b, Theorem p1, Theorem p7)
Constructs a proof obligation

Method Summary

java.lang.String	getDisplayedName()
Method	getMethod() Returns the currentmethod.
static Formula	parameterDeclaration(Method method) Returns the formula corresponding to the parameter declaration of the method.
void	pog(IJml2bConfiguration config) Process the WP calculus on the proof obligations.
void	proveObvious(boolean prove) Proves the obvious goals if asked.

Methods inherited from class jml2b.util.Profiler

runGC

Methods inherited from class java.lang.Object

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

Constructor Detail

MethodPO

public MethodPO(Class c,
                Method m,
                Formula h1,
                Formula h2,
                ColoredInfo box,
                Statement b,
                Theorem p1,
                Theorem p7)

Constructs a proof obligation

Parameters:

c - The current class

m - The current method

h1 - The invariant

h2 - The requires

box - The colored info

b - The body

p1 - The normal behaviour proof

p7 - The exceptional behaviour proof

Method Detail

pog

public void pog(IJml2bConfiguration config)
         throws Jml2bException,
                PogException

Process the WP calculus on the proof obligations. Add the hypothesis concerning the typing of this and finalize the calculated lemmas.

Specified by:

pog in class ProofObligation

Parameters:

config - The current configuration

Throws:

PogException

Jml2bException

parameterDeclaration

public static Formula parameterDeclaration(Method method)

Returns the formula corresponding to the parameter declaration of the method.

proveObvious

public void proveObvious(boolean prove)

Description copied from class: ProofObligation

Proves the obvious goals if asked. Cast all the remaining lemmas in SimpleLemma. This task is performed at the end of the WP calculus.

Specified by:

proveObvious in class ProofObligation

Parameters:

prove - indicate whether obvious goals should be suppressed from the theorems

getMethod

public Method getMethod()

Returns the currentmethod.

Returns:

method

getDisplayedName

public java.lang.String getDisplayedName()

Specified by:

getDisplayedName in class ProofObligation

Returns:

the name to display in the progress monitor.