Abstract: The invention relates to a method for checking and/or transformation of a computer program present in a programming language which supports first-class functions and in which a type check of the program or of at least a part of the program is performed in order to assign a type to each expression of the program or part of the program, the type consisting of a base type and a binding time. The set of base types comprises at least base types for describing simple values and a function type for describing functions, and the set of binding times comprises at least one static binding time and one dynamic binding time, and a function type is only accepted during the type check together with the static binding time.

Abstract: The invention relates to a method for checking and/or transformation of a computer program present in a programming language which supports first-class functions and in which a type check of the program or of at least a part of the program is performed in order to assign a type to each expression of the program or part of the program, the type consisting of a base type and a binding time. The set of base types comprises at least base types for describing simple values and a function type for describing functions, and the set of binding times comprises at least one static binding time and one dynamic binding time, and a function type is only accepted during the type check together with the static binding time.