Appendix A. Language keywords

Appendix A. Language keywords
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	Text not verified for kermeta 2

The following keywords are used by Kermeta textual syntax.

Note

	Note
If you want to name some class or property using those names, you'll need to escape them using the ~ (tilda).Ex: `class ~class {}` (See Section 2.2, “ Escaping reserved keywords ” )

If you want to name some class or property using those names, you'll need to escape them using the ~ (tilda).Ex: class ~class {}

(See Section 2.2, “ Escaping reserved keywords ” )

Keyword	Usage
@pre	Represents self before the call to this operation in the scope of a post condition. See Section 2.21.1.1, “pre – post conditions syntax”
abstract	Modifier for class or operation
alias	Definition of a primitive type
and	Boolean expression
aspect	Modifier for class. Indicates that the class reopen another class. See Section 2.22, “ Weaving Kermeta code ”
attribute	Definition of an attribute
bag	See Section 2.15, “ Collections ”
class	Definition of a class
do	Beginning of a block
else	Else part of a conditional instruction
end	End of a block
enumeration	Definition of an enumeration
extern	Call of a java static operation
false	Boolean literal
from	Loop instruction
function	Declares a local function
getter	Declaration of a property getter
if	Conditional instruction
inherits	Declartion of the super classes of the class
init	Initialization of a variable. In Kermeta 2, this can be replaced by `:=`
inv	Declaration of an invariant. See Section 2.21.1.2, “Invariant constraint syntax”
is	part of the declaration of an operation or method. See Section 2.8.2, “Defining operations”
loop	Loop instruction
method	Redefinition of an operation. See Section 2.8.2, “Defining operations”
modeltype	Definition of a modeltype.
not	Boolean expression
operation	Declaration of an operation. See Section 2.8.2, “Defining operations”
or	Boolean expression
oset	See Section 2.15, “ Collections ”
package	Declaration of package
post	Declaration of a postcondition. See Section 2.21.1.1, “pre – post conditions syntax”
pre	Declaration of a precondition. See Section 2.21.1.1, “pre – post conditions syntax”
property	Declaration of a derived property
raise	Throw an exception
raises	Declares the exception that an operation can throw
readonly	Modifier for properties
reference	Declaration of a reference
rescue	Catch an excetion
result	Special variable used for the return value of an operation. See Section 2.8.2, “Defining operations”
setter	Declaration of property setter
self	Special varaible representing this instances
set	See Section 2.15, “ Collections ”
seq	See Section 2.15, “ Collections ”
singleton	Definition of a singleton class. See Section 2.17, “ Singleton class ”
super	Call to the super operation
then	Then part of a conditional instruction
true	Boolean literal
until	Loop condition
using	Shortcut used to avoid to write the full qualified name
value	Special variable used in getter and setter to represent the actual value of the property
var	Declaration of a variable
void	Void literal

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Chapter 4. Kermeta framework	Home	Appendix B. Known Kermeta tags