edu.uiowa.cs.clc.kind2.lustre

Class ImportedComponentBuilder

java.lang.Object

edu.uiowa.cs.clc.kind2.lustre.ImportedComponentBuilder

public class ImportedComponentBuilder
extends java.lang.Object

This class represents an imported function/node. An imported function/node does not have a body (let ... tel). In a Lustre compiler, this is usually used to encode a C function or more generally a call to an external library.

In Kind 2, this means that the function/node is always abstract in the contract sense. It can never be refined, and is always abstracted by its contract. If none is given, then the implicit (rather weak) contract (*@contract assume true; guarantee true; *) is used.

In a modular analysis, imported functions/nodes will not be analyzed, although if their contract has modes they will be checked for exhaustiveness, consistently with the usual Kind 2 contract workflow.

Constructor Summary

Constructors

Constructor and Description
ImportedComponentBuilder(java.lang.String id) Constructor

Method Summary

Modifier and Type	Method and Description
IdExpr	createConstInput(java.lang.String name, Type type) add a constant input parameter
IdExpr	createVarInput(java.lang.String name, Type type) add a variable input parameter
IdExpr	createVarOutput(java.lang.String name, Type type) add a variable output parameter
void	setContractBody(ContractBodyBuilder contractBodyBuilder) set the contract body for the imported component

Methods inherited from class java.lang.Object

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

Constructor Detail

ImportedComponentBuilder

public ImportedComponentBuilder(java.lang.String id)

Constructor

Parameters:

id - name of the imported component

Method Detail

createConstInput

public IdExpr createConstInput(java.lang.String name,
                               Type type)

add a constant input parameter

Parameters:

name - name of the input parameter

type - type of the input parameter

Returns:

an id-expr for the input parameter

createVarInput

public IdExpr createVarInput(java.lang.String name,
                             Type type)

add a variable input parameter

Parameters:

name - name of the input parameter

type - type of the input parameter

Returns:

an id-expr for the input parameter

createVarOutput

public IdExpr createVarOutput(java.lang.String name,
                              Type type)

add a variable output parameter

Parameters:

name - name of the output parameter

type - type of the output parameter

Returns:

an id-expr for the output parameter

setContractBody

public void setContractBody(ContractBodyBuilder contractBodyBuilder)

set the contract body for the imported component

Parameters:

contractBodyBuilder - a builder for the contract body