VDM-10 Language Manual

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$Course Material\Efficiently Coding Communication Protocols in C++ ...$

VDM-10 Language Manual getCardnumber : atmc -> seq1 of digit getCardnumber (atmc) == atmc.cardnumber end ATMCard ✡✝ ✆ Here the invariant on the type atmc states that expiry dates must represent valid dates, and card numbers must be at least 8 digits long. Note that since digit is not exported with the struct keyword from the module BankAccount, we cannot access the invariant for digit in module ATMCard. However this notwithstanding, all values of type digit manipulated in ATMCard must satisfy the invariant. 160
Chapter 18 Trace Definitions In order to automate the testing process VDM++ contains a notation enabling the expression of the traces that one would like to have tested exhaustively. Such traces are used to express combinations of sequences of operations that wish to be tested in all possible combinations. In a sense this is similar to model checking limitations except that this is done with real and not symbolic values. However, errors in test cases are filtered away so other test cases with the same prefix will be skipped automatically. Syntax: traces definitions = ‘traces’, { named trace } ; named trace = identifier, { ‘/’, identifier }, ‘:’, trace definition list ; trace definition list = trace definition term, { ‘;’, trace definition term } ; trace definition term = trace definition | trace definition term, ‘|’, trace definition ; trace definition = trace core definition | trace bindings, trace core definition | trace core definition, trace repeat pattern | trace bindings, trace core definition, trace repeat pattern ; trace core definition = trace apply expression | trace bracketed expression ; trace apply expression = call statement ; trace repeat pattern = ‘*’ | ‘+’ | ‘?’ | ‘{’, numeric literal, ‘}’ | ‘{’, numeric literal, ‘,’ numeric literal, ‘}’ ; 161
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Overture - Open-source Tools for Fo
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Contents 1 Introduction 1 1.1 The V
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CONTENTS 13 Statements 97 13.1 Let
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CONTENTS A.7.19 The Undefined Expre
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Chapter 1 Introduction The Vienna D
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Chapter 2 Concrete Syntax Notation
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Chapter 3 Data Type Definitions As
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Chapter 3. Data Type Definitions We
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Chapter 3. Data Type Definitions Op
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Chapter 3. Data Type Definitions (a
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Chapter 3. Data Type Definitions
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Chapter 3. Data Type Definitions m1
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Chapter 3. Data Type Definitions Sy
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Chapter 3. Data Type Definitions Th
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Chapter 3. Data Type Definitions to
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Chapter 4 Algorithm Definitions In
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Chapter 5 Function Definitions In t
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Chapter 5. Function Definitions Not
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Chapter 5. Function Definitions Thi
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Chapter 6 Expressions In this subse
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Chapter 6. Expressions ✡✝ mk_Sc
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Chapter 6. Expressions Examples: Th
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Chapter 6. Expressions where e1 is
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Chapter 6. Expressions all expressi
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Chapter 6. Expressions where bd is
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Chapter 6. Expressions 6.8 Sequence
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Chapter 6. Expressions where all th
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Chapter 6. Expressions mu operator.
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Chapter 6. Expressions new expressi
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Chapter 6. Expressions Examples: Us
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Chapter 6. Expressions which will r
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Chapter 6. Expressions Examples: As
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Chapter 6. Expressions • #active(
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Chapter 6. Expressions ✞ state si
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Chapter 6. Expressions Semantics: A
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Chapter 7 Patterns Syntax: pattern
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Chapter 7. Patterns In the followin
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Chapter 7. Patterns ✡✝ ✆ The
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Chapter 8 Bindings Syntax: bind = s
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Chapter 9 Value (Constant) Definiti
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Chapter 10 Instance Variables (VDM+
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Chapter 11 The State Definition (VD
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Chapter 11. The State Definition (V
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Chapter 12 Operation Definitions Op
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Chapter 12. Operation Definitions s
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Chapter 12. Operation Definitions p
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Chapter 12. Operation Definitions h
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Chapter 13 Statements In this secti
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Chapter 13. Statements ✡✝ def t
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Chapter 13. Statements block return
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Chapter 13. Statements Examples: Th
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Chapter 13. Statements elseif state
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Chapter 13. Statements ‘do’, st
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Page 127 and 128: Chapter 13. Statements ✡✝ else
Page 129 and 130: Chapter 13. Statements ✞ bootSequ
Page 131 and 132: Chapter 13. Statements ✞ op1 : na
Page 133 and 134: Chapter 14 Top-level Specification
Page 135 and 136: Chapter 14. Top-level Specification
Page 145 and 146: Chapter 15 Synchronization Constrai
Page 147 and 148: Chapter 15. Synchronization Constra
Page 153 and 154: Chapter 16 Threads (VDM++ and VDM-R
Page 155 and 156: Chapter 16. Threads (VDM++ and VDM-
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Page 159 and 160: Chapter 17 Top-level Specification
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Page 171 and 172: Chapter 18. Trace Definitions stack
Page 173 and 174: Chapter 19 Static Semantics VDM spe
Page 175 and 176: Chapter 20 Scope Conflicts (VDM++ a
Page 177 and 178: References [Ada LRM] [Bicarregui&94
Page 179 and 180: Chapter 20. Scope Conflicts (VDM++
Page 181 and 182: Appendix A The Syntax of the VDM La
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Page 207 and 208: Appendix B Lexical Specification B.
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Page 211 and 212: Appendix B. Lexical Specification S
Page 213 and 214: Appendix C Operator Precedence The
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Appendix D Differences between the
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Index abs, 9 and, 6 card, 14 comp f
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INDEX arithmetic minus, 185 arithme
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INDEX boolean type, 6 char, 11 func
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INDEX sequence enumeration, 53, 187
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