wyc.lang

Class Stmt.Assert

java.lang.Object

wybs.lang.SyntacticElement.Impl

wyc.lang.Stmt.Assert

All Implemented Interfaces:

wybs.lang.SyntacticElement, Stmt

Enclosing interface:

Stmt

public static final class Stmt.Assert
extends wybs.lang.SyntacticElement.Impl
implements Stmt

Represents a assert statement of the form assert e, where e is a boolean expression. The following illustrates:

 function abs(int x) -> int:
     if x < 0:
         x = -x
     assert x >= 0
     return x
 

Assertions are either statically checked by the verifier, or turned into runtime checks.

Author:

David J. Pearce

Nested Class Summary

Nested classes/interfaces inherited from interface wyc.lang.Stmt

Stmt.Assert, Stmt.Assign, Stmt.Assume, Stmt.Break, Stmt.Case, Stmt.Continue, Stmt.Debug, Stmt.DoWhile, Stmt.Fail, Stmt.IfElse, Stmt.NamedBlock, Stmt.Return, Stmt.Skip, Stmt.Switch, Stmt.VariableDeclaration, Stmt.While

Nested classes/interfaces inherited from interface wybs.lang.SyntacticElement

wybs.lang.SyntacticElement.Impl

Field Summary

Fields

Modifier and Type	Field and Description
Expr	expr

Constructor Summary

Constructors

Constructor and Description
Assert(Expr expr, wybs.lang.Attribute... attributes) Create a given assert statement.
Assert(String msg, Expr expr, Collection<wybs.lang.Attribute> attributes) Create a given assert statement.

Method Summary

Methods inherited from class wybs.lang.SyntacticElement.Impl

attribute, attributes

Methods inherited from class java.lang.Object

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

Methods inherited from interface wybs.lang.SyntacticElement

attribute, attributes

Field Detail

expr

public Expr expr

Constructor Detail

Assert

public Assert(Expr expr,
              wybs.lang.Attribute... attributes)

Create a given assert statement.

Parameters:

expr - the asserted condition, which may not be null.

attributes -

Assert

public Assert(String msg,
              Expr expr,
              Collection<wybs.lang.Attribute> attributes)

Create a given assert statement.

Parameters:

expr - the asserted condition, which may not be null.

attributes -