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module statics
imports
signatures/Poosl-sig
signatures/Common-sig
statics-comm
statics-expr-stat
statics-typing
statics-opt
statics-names
// see README.md for details on how to switch to multi-file analysis
// TODO file-based imports (not namespace-based imports)
rules // single-file entry point
programOk : Poosl
programOk(Poosl(ImportList(imports), ClassList())) :- {}
new s_poosl,
try { selectSystemClasses(classes) == [_|[]] } | error $[There should be exactly 1 system class],
okClasses(s_poosl, classes).
rules // multi-file entry point
projectOk : scope
projectOk(s).
fileOk : scope * Poosl
fileOk(s, Poosl(ImportList(imports), ClassList())) :- {}
new s_poosl, s_poosl -P-> s,
try { selectSystemClasses(classes) == [_|[]] } | error $[There should be exactly 1 system class],
okClasses(s_poosl, classes).
rules // === Classes ( -P-> ) =======
maps okClass(*, list(*))
: scope * Class
okClass(, DataClass(AnnotationList(annotations), nativeClause, , extendsClause, DeclarationOptCommaList(variables), DataMethodList(methods))) :-
{} new s_internal, s_internal -P-> s, // variables, methods
{} T_extends == okExtendsClauseDataClass(s_internal, name, extendsClause),
declareDataClass(s, name, TypeDataClass(s_internal, T_extends)),
okDeclarationOptCommas(s_internal, variables),
okDataMethods(s, s_internal, name, TypeDataClass(s_internal, T_extends), methods).
okClass(, ProcessClass(AnnotationList(annotations), name, optParameters, extendsClause, PortList(ports), MessageSignatureList(messages), DeclarationOptCommaList(variables), initMethodCall, ProcessMethodList(methods))) :-
{} new s_external, s_external -P-> s, // parameters, ports, messages
{} new s_internal, s_internal -P-> s_external, // variables, methods
okExtendsClauseProcessClass(s_external, s_internal, extendsClause),
declareProcessOrClusterClass(s, name, TypeProcessClass(s_external, s_internal)),
okDeclarations(s_external, stripOptParameterList(optParameters)) == _,
okPorts(s_external, ports),
okMessageSignatures(s_external, messages),
okDeclarationOptCommas(s_internal, variables),
okProcessMethodCall(s_internal, initMethodCall),
okProcessMethods(s_internal, methods).
okClass(, ClusterClass(AnnotationList(annotations), name, optParameters, PortList(ports), InstanceList(instances), ChannelList(channels))) :-
{} new s_external, s_external -P-> s, // parameters, ports
{} new s_internal, s_internal -P-> s_external, // instances, channels
declareProcessOrClusterClass(s, name, TypeClusterClass(s_external)),
okDeclarations(s_external, stripOptParameterList(optParameters)) == _,
okPorts(s_external, ports),
okInstances(s_internal, instances),
okChannels(s_internal, channels).
okClass(s, System(AnnotationList(annotations), InstanceList(instances), ChannelList(channels))) :-
{} new s_internal, s_internal -P-> s, // instances, channels
okInstances(s_internal, instances),
okChannels(s_internal, channels).
// Note: no scopes associated to ports (for the related message signatures), because of inheritance.
rules // === Class extends clauses ( -I-> ) =======
: scope * string * ExtendsClause -> TypeDataClass
okExtendsClauseDataClass(s_internal, "Object", _) = TypeDataClassRoot().
okExtendsClauseDataClass(, _, NoExtends()) = TypeDataClass(, T_extends) :-
TypeDataClass(s2_internal, T_extends) == typeOfDataClassNoRef(s_internal, "Object"),
s_internal -I-> s2_internal.
okExtendsClauseDataClass(, _, Extends(name)) = TypeDataClass(, T_extends) :-
TypeDataClass(s2_internal, T_extends) == typeOfDataClass(s_internal, name),
s_internal -I-> s2_internal.
: scope * scope * ExtendsClause
okExtendsClauseProcessClass(s_external, s_internal, NoExtends()).
okExtendsClauseProcessClass(s_external, , Extends(name)) :-
{ } TypeProcessClass(s2_external, s2_internal) == typeOfProcessOrClusterClass(s_internal, name),
s_external -I-> s2_external,
s_internal -I-> s2_internal.
rules // === Methods ( -P-> ) =======
okProcessMethods maps okProcessMethod(*, list(*))
: scope * ProcessMethod
okProcessMethod(, ProcessMethod(AnnotationList(annotations), name, ParameterList(inParameters), ParameterList(outParameters), optLocalVariables, body)) :-
{} new s_method, s_method -P-> s_internal,
{} typesInputParameters == okDeclarations(s_method, inParameters),
{} typesOutputParameters == okDeclarations(s_method, outParameters),
declareProcessMethod(s_internal, name, TypeProcessMethod(flattenDataClasses(typesInputParameters), flattenDataClasses(typesOutputParameters))),
okDeclarations(s_method, stripOptLocalVariablesList(optLocalVariables)) == _,
okStatement(s_method, body).
okDataMethods maps okDataMethod(*, *, *, *, list(*))
: scope * scope * string * TypeDataClass * DataMethod
okDataMethod(, s_internal, cname, , DataMethodNamed(AnnotationList(annotations), name, optParameters, returnType, optLocalVariables, )) :-
{} new s_method, s_method -P-> s_internal,
{} typesInputParameters == flattenDataClasses(okDeclarations(s_method, stripOptParameterList(optParameters))),
{} typeReturnValue == typeOfDataClass(s, returnType),
declareNamedDataMethod(s, cname, name, TypeDataMethod(typeClass, typesInputParameters, typeReturnValue)),
okDeclarations(s_method, stripOptLocalVariablesList(optLocalVariables)) == _,
{} type_Body == okExpression(s_method, typeClass, body),
try { compatibleType(type_Body, typeReturnValue) } | warning $[Incompatible type] @body.
okDataMethod(, s_internal, cname, , DataMethodUnary(AnnotationList(annotations), name, _, returnType, optLocalVariables, )) :-
{} new s_method, s_method -P-> s_internal,
{} typeReturnValue == typeOfDataClass(s, returnType),
declareUnaryDataMethod(s, cname, name, TypeDataMethod(typeClass, [], typeReturnValue)),
okDeclarations(s_method, stripOptLocalVariablesList(optLocalVariables)) == _,
{} type_Body == okExpression(s_method, typeClass, body),
try { compatibleType(type_Body, typeReturnValue) } | warning $[Incompatible type] @body.
okDataMethod(, s_internal, cname, , DataMethodBinary(AnnotationList(annotations), name, , returnType, optLocalVariables, )) :-
{} new s_method, s_method -P-> s_internal,
{} typesInputParameters == flattenDataClasses(okDeclarations(s_method, [parameter])),
try { [_|[]] == typesInputParameters } | error $[Expected only 1 argument] @parameter,
{} typeReturnValue == typeOfDataClass(s, returnType),
declareBinaryDataMethod(s, cname, name, TypeDataMethod(typeClass, typesInputParameters, typeReturnValue)),
okDeclarations(s_method, stripOptLocalVariablesList(optLocalVariables)) == _,
{} type_Body == okExpression(s_method, typeClass, body),
try { compatibleType(type_Body, typeReturnValue) } | warning $[Incompatible type] @body.
okDataMethod(, s_internal, cname, typeClass, DataMethodNamedNative(name, optParameters, returnType)) :-
{} new s_method, s_method -P-> s_internal,
{} typesInputParameters == flattenDataClasses(okDeclarations(s_method, stripOptParameterList(optParameters))),
{} typeReturnValue == typeOfDataClass(s, returnType),
declareNamedDataMethod(s, cname, name, TypeDataMethod(typeClass, typesInputParameters, typeReturnValue)).
okDataMethod(, s_internal, cname, typeClass, DataMethodUnaryNative(name, _, returnType)) :-
{} typeReturnValue == typeOfDataClass(s, returnType),
declareUnaryDataMethod(s, cname, name, TypeDataMethod(typeClass, [], typeReturnValue)).
okDataMethod(, s_internal, cname, typeClass, DataMethodBinaryNative(name, , returnType)) :-
{} new s_method, s_method -P-> s_internal,
{} typesInputParameters == flattenDataClasses(okDeclarations(s_method, [parameter])),
try { [_|[]] == typesInputParameters } | error $[Expected only 1 argument] @parameter,
{} typeReturnValue == typeOfDataClass(s, returnType),
declareBinaryDataMethod(s, cname, name, TypeDataMethod(typeClass, typesInputParameters, typeReturnValue)).
rules
: list(Class) -> list(Class)
selectSystemClasses([]) = [].
selectSystemClasses([System(AnnotationList(annotations), instances, channels)|Cs]) = [System(AnnotationList(annotations), instances, channels)|selectSystemClasses(Cs)].
selectSystemClasses([_|Cs]) = selectSystemClasses(Cs).
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