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refactorInterfaces-read3.xbgf
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refactorInterfaces-read3.xbgf
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<?xml version="1.0" encoding="utf-8"?>
<xbgf:sequence
xmlns:bgf="http://planet-sl.org/bgf"
xmlns:xbgf="http://planet-sl.org/xbgf">
<!--
Expressions in the syntax appendix look like this:
InterfaceDeclaration is defined as:
NormalInterfaceDeclaration
AnnotationTypeDeclaration
NormalInterfaceDeclaration is defined as:
"interface" Identifier [ TypeParameters ] [ "extends" TypeList ] InterfaceBody
InterfaceBody is defined as:
"{" { InterfaceBodyDeclaration } "}"
InterfaceBodyDeclaration is defined as:
";"
ModifiersOpt InterfaceMemberDecl
InterfaceMemberDecl is defined as:
InterfaceMethodOrFieldDecl
"void" Identifier VoidInterfaceMethodDeclaratorRest
ClassOrInterfaceDeclaration
InterfaceMethodOrFieldDecl is defined as:
Type Identifier InterfaceMethodOrFieldRest
InterfaceMethodOrFieldRest is defined as:
ConstantDeclaratorsRest ";"
InterfaceMethodDeclaratorRest
ConstantDeclaratorsRest is defined as:
ConstantDeclaratorRest { "," ConstantDeclarator }
InterfaceMethodDeclaratorRest is defined as:
FormalParameters BracketsOpt [ "throws" QualifiedIdentifierList ] ";"
VoidInterfaceMethodDeclaratorRest is defined as:
FormalParameters [ "throws" QualifiedIdentifierList ] ";"
While in the text of the spec it is yaccified:
InterfaceDeclaration is defined as:
NormalInterfaceDeclaration
AnnotationTypeDeclaration
NormalInterfaceDeclaration is defined as:
[ InterfaceModifiers ] "interface" Identifier [ ExtendsInterfaces ] InterfaceBody
ExtendsInterfaces is defined as:
"extends" InterfaceType
ExtendsInterfaces "," InterfaceType
InterfaceBody is defined as:
{ [ InterfaceMemberDeclarations ] }
InterfaceMemberDeclarations is defined as:
InterfaceMemberDeclaration
InterfaceMemberDeclarations InterfaceMemberDeclaration
InterfaceMemberDeclaration is defined as:
ConstantDeclaration
AbstractMethodDeclaration
ClassDeclaration
InterfaceDeclaration
";"
ConstantDeclaration is defined as:
[ ConstantModifiers ] Type VariableDeclarators
AbstractMethodDeclaration is defined as:
[ AbstractMethodModifiers ] ResultType MethodDeclarator [ Throws ] ";"
MethodDeclarator is defined as:
Identifier "(" [ FormalParameterList ] ")"
-->
<!--
- Fail: NormalInterfaceDeclaration.
- [], ,([t(interface), n(Identifier), ?(,([t(extends), n(TypeList)])), n(InterfaceBody)])
vs.
- [], ,([n(ModifiersOpt), t(interface), n(Identifier), ?(n(ExtendsInterfaces)), n(InterfaceBody)])
-->
<xbgf:unfold>
<nonterminal>ModifiersOpt</nonterminal>
<in>
<nonterminal>NormalInterfaceDeclaration</nonterminal>
</in>
</xbgf:unfold>
<!-- RELAXATION -->
<xbgf:disappear>
<bgf:production>
<nonterminal>NormalInterfaceDeclaration</nonterminal>
<bgf:expression>
<sequence>
<bgf:expression>
<marked>
<bgf:expression>
<star>
<bgf:expression>
<nonterminal>Modifier</nonterminal>
</bgf:expression>
</star>
</bgf:expression>
</marked>
</bgf:expression>
<bgf:expression>
<terminal>interface</terminal>
</bgf:expression>
<bgf:expression>
<nonterminal>Identifier</nonterminal>
</bgf:expression>
<bgf:expression>
<optional>
<bgf:expression>
<nonterminal>ExtendsInterfaces</nonterminal>
</bgf:expression>
</optional>
</bgf:expression>
<bgf:expression>
<nonterminal>InterfaceBody</nonterminal>
</bgf:expression>
</sequence>
</bgf:expression>
</bgf:production>
</xbgf:disappear>
<xbgf:deyaccify>ExtendsInterfaces</xbgf:deyaccify>
<xbgf:fold>
<nonterminal>TypeList</nonterminal>
<in>
<nonterminal>ExtendsInterfaces</nonterminal>
</in>
</xbgf:fold>
<!--
- Fail: NormalInterfaceDeclaration.
- [], ,([t(interface), n(Identifier), ?(n(TypeParameters)), ?(,([t(extends), n(TypeList)])), n(InterfaceBody)])
vs.
- [], ,([t(interface), n(Identifier), ?(,([t(extends), n(TypeList)])), n(InterfaceBody)])
-->
<!-- RELAXATION -->
<xbgf:appear>
<bgf:production>
<nonterminal>NormalInterfaceDeclaration</nonterminal>
<bgf:expression>
<sequence>
<bgf:expression>
<terminal>interface</terminal>
</bgf:expression>
<bgf:expression>
<nonterminal>Identifier</nonterminal>
</bgf:expression>
<bgf:expression>
<marked>
<bgf:expression>
<optional>
<bgf:expression>
<nonterminal>TypeParameters</nonterminal>
</bgf:expression>
</optional>
</bgf:expression>
</marked>
</bgf:expression>
<bgf:expression>
<optional>
<bgf:expression>
<nonterminal>ExtendsInterfaces</nonterminal>
</bgf:expression>
</optional>
</bgf:expression>
<bgf:expression>
<nonterminal>InterfaceBody</nonterminal>
</bgf:expression>
</sequence>
</bgf:expression>
</bgf:production>
</xbgf:appear>
<xbgf:inline>ExtendsInterfaces</xbgf:inline>
<!--
- Fail: InterfaceBody.
- [], ,([t({), *(n(InterfaceBodyDeclaration)), t(})])
vs.
- [], ,([t({), ?(n(InterfaceMemberDeclarations)), t(})])
-->
<xbgf:deyaccify>InterfaceMemberDeclarations</xbgf:deyaccify>
<xbgf:inline>InterfaceMemberDeclarations</xbgf:inline>
<xbgf:massage>
<bgf:expression>
<optional>
<bgf:expression>
<plus>
<bgf:expression>
<nonterminal>InterfaceBodyDeclaration</nonterminal>
</bgf:expression>
</plus>
</bgf:expression>
</optional>
</bgf:expression>
<bgf:expression>
<star>
<bgf:expression>
<nonterminal>InterfaceBodyDeclaration</nonterminal>
</bgf:expression>
</star>
</bgf:expression>
</xbgf:massage>
<!--
- Fail: InterfaceBodyDeclaration.
- [], ;([t((;)), ,([*(n(Modifier)), n(InterfaceMemberDecl)])])
vs.
- [], ;([n(ConstantDeclaration), n(AbstractMethodDeclaration), n(ClassDeclaration), n(InterfaceDeclaration), t((;))])
-->
<xbgf:inline>ConstantDeclaration</xbgf:inline>
<xbgf:inline>AbstractMethodDeclaration</xbgf:inline>
<!-- modifiers -->
<!-- RELAXATION -->
<xbgf:appear>
<bgf:production>
<nonterminal>InterfaceBodyDeclaration</nonterminal>
<bgf:expression>
<sequence>
<bgf:expression>
<marked>
<bgf:expression>
<star>
<bgf:expression>
<nonterminal>Modifier</nonterminal>
</bgf:expression>
</star>
</bgf:expression>
</marked>
</bgf:expression>
<bgf:expression>
<nonterminal>ClassDeclaration</nonterminal>
</bgf:expression>
</sequence>
</bgf:expression>
</bgf:production>
</xbgf:appear>
<!-- RELAXATION -->
<xbgf:appear>
<bgf:production>
<nonterminal>InterfaceBodyDeclaration</nonterminal>
<bgf:expression>
<sequence>
<bgf:expression>
<marked>
<bgf:expression>
<star>
<bgf:expression>
<nonterminal>Modifier</nonterminal>
</bgf:expression>
</star>
</bgf:expression>
</marked>
</bgf:expression>
<bgf:expression>
<nonterminal>InterfaceDeclaration</nonterminal>
</bgf:expression>
</sequence>
</bgf:expression>
</bgf:production>
</xbgf:appear>
<xbgf:fold>
<nonterminal>ModifiersOpt</nonterminal>
</xbgf:fold>
<!--
- Fail: Annotations.
- [], ,([n(Annotation), ?(n(Annotations))])
vs.
- [], ;([n(Annotation), ,([n(Annotations), n(Annotation)])])
-->
<xbgf:deyaccify>Annotations</xbgf:deyaccify>
<!--
- Fail: AnnotationTypeDeclaration.
- [], ,([t(@), t(interface), n(Identifier), n(AnnotationTypeBody)])
vs.
- [], ,([*(n(Modifier)), t(@), t(interface), n(Identifier), n(AnnotationTypeBody)])
-->
<xbgf:unfold>
<nonterminal>ModifiersOpt</nonterminal>
<in>
<nonterminal>AnnotationTypeDeclaration</nonterminal>
</in>
</xbgf:unfold>
<!-- RELAXATION -->
<xbgf:disappear>
<bgf:production>
<nonterminal>AnnotationTypeDeclaration</nonterminal>
<bgf:expression>
<sequence>
<bgf:expression>
<marked>
<bgf:expression>
<star>
<bgf:expression>
<nonterminal>Modifier</nonterminal>
</bgf:expression>
</star>
</bgf:expression>
</marked>
</bgf:expression>
<bgf:expression>
<terminal>@</terminal>
</bgf:expression>
<bgf:expression>
<terminal>interface</terminal>
</bgf:expression>
<bgf:expression>
<nonterminal>Identifier</nonterminal>
</bgf:expression>
<bgf:expression>
<nonterminal>AnnotationTypeBody</nonterminal>
</bgf:expression>
</sequence>
</bgf:expression>
</bgf:production>
</xbgf:disappear>
<!--
This is needed for Annotation (see below)
ElementValuePairs is defined as:
ElementValuePair
ElementValuePairs "," ElementValuePair
so we effectively "narrow" it (by executing remove instead of deyaccify/narrow)
(also because narrow(*(L),true) doesn't work)
-->
<!-- RELAXATION -->
<xbgf:remove>
<vertical>
<bgf:production>
<nonterminal>ElementValuePairs</nonterminal>
<bgf:expression>
<sequence>
<bgf:expression>
<nonterminal>ElementValuePairs</nonterminal>
</bgf:expression>
<bgf:expression>
<terminal>,</terminal>
</bgf:expression>
<bgf:expression>
<nonterminal>ElementValuePair</nonterminal>
</bgf:expression>
</sequence>
</bgf:expression>
</bgf:production>
</vertical>
</xbgf:remove>
<xbgf:inline>ElementValuePairs</xbgf:inline>
<!--
- Fail: Annotation.
- [], ,([t(@), n(TypeName), ?(,([t((), ?(,([n(Identifier), t(=)])), n(ElementValue), t())]))])
vs.
- [], ;([n(NormalAnnotation), n(MarkerAnnotation), n(SingleElementAnnotation)])
-->
<xbgf:inline>NormalAnnotation</xbgf:inline>
<xbgf:inline>MarkerAnnotation</xbgf:inline>
<xbgf:inline>SingleElementAnnotation</xbgf:inline>
<xbgf:inline>ElementValuePair</xbgf:inline>
<!--
The following solution breaks semantics by disallowing
,([t(@), n(QualifiedIdentifier), t((), t())])
- Fail: Annotation.
- [], ,([t(@), n(QualifiedIdentifier), ?(,([t((), ?(,([n(Identifier), t(=)])), n(ElementValue), t())]))])
vs.
- [], ;([,([t(@), n(QualifiedIdentifier), t((), ?(,([n(Identifier), t(=), n(ElementValue)])), t())]),
,([t(@), n(QualifiedIdentifier)]),
,([t(@), n(QualifiedIdentifier), t((), n(ElementValue), t())])])
-->
<xbgf:massage>
<bgf:expression>
<optional>
<bgf:expression>
<sequence>
<bgf:expression>
<nonterminal>Identifier</nonterminal>
</bgf:expression>
<bgf:expression>
<terminal>=</terminal>
</bgf:expression>
<bgf:expression>
<nonterminal>ElementValue</nonterminal>
</bgf:expression>
</sequence>
</bgf:expression>
</optional>
</bgf:expression>
<bgf:expression>
<choice>
<bgf:expression>
<sequence>
<bgf:expression>
<nonterminal>Identifier</nonterminal>
</bgf:expression>
<bgf:expression>
<terminal>=</terminal>
</bgf:expression>
<bgf:expression>
<nonterminal>ElementValue</nonterminal>
</bgf:expression>
</sequence>
</bgf:expression>
<bgf:expression>
<epsilon/>
</bgf:expression>
</choice>
</bgf:expression>
</xbgf:massage>
<xbgf:distribute>
<nonterminal>Annotation</nonterminal>
</xbgf:distribute>
<xbgf:vertical>
<nonterminal>Annotation</nonterminal>
</xbgf:vertical>
<!-- RELAXATION -->
<xbgf:remove>
<vertical>
<bgf:production>
<nonterminal>Annotation</nonterminal>
<bgf:expression>
<sequence>
<bgf:expression>
<terminal>@</terminal>
</bgf:expression>
<bgf:expression>
<nonterminal>QualifiedIdentifier</nonterminal>
</bgf:expression>
<bgf:expression>
<terminal>(</terminal>
</bgf:expression>
<bgf:expression>
<terminal>)</terminal>
</bgf:expression>
</sequence>
</bgf:expression>
</bgf:production>
</vertical>
</xbgf:remove>
<xbgf:horizontal>Annotation</xbgf:horizontal>
<xbgf:factor>
<bgf:expression>
<choice>
<bgf:expression>
<sequence>
<bgf:expression>
<terminal>@</terminal>
</bgf:expression>
<bgf:expression>
<nonterminal>QualifiedIdentifier</nonterminal>
</bgf:expression>
<bgf:expression>
<terminal>(</terminal>
</bgf:expression>
<bgf:expression>
<nonterminal>Identifier</nonterminal>
</bgf:expression>
<bgf:expression>
<terminal>=</terminal>
</bgf:expression>
<bgf:expression>
<nonterminal>ElementValue</nonterminal>
</bgf:expression>
<bgf:expression>
<terminal>)</terminal>
</bgf:expression>
</sequence>
</bgf:expression>
<bgf:expression>
<sequence>
<bgf:expression>
<terminal>@</terminal>
</bgf:expression>
<bgf:expression>
<nonterminal>QualifiedIdentifier</nonterminal>
</bgf:expression>
</sequence>
</bgf:expression>
<bgf:expression>
<sequence>
<bgf:expression>
<terminal>@</terminal>
</bgf:expression>
<bgf:expression>
<nonterminal>QualifiedIdentifier</nonterminal>
</bgf:expression>
<bgf:expression>
<terminal>(</terminal>
</bgf:expression>
<bgf:expression>
<nonterminal>ElementValue</nonterminal>
</bgf:expression>
<bgf:expression>
<terminal>)</terminal>
</bgf:expression>
</sequence>
</bgf:expression>
</choice>
</bgf:expression>
<bgf:expression>
<sequence>
<bgf:expression>
<terminal>@</terminal>
</bgf:expression>
<bgf:expression>
<nonterminal>QualifiedIdentifier</nonterminal>
</bgf:expression>
<bgf:expression>
<choice>
<bgf:expression>
<sequence>
<bgf:expression>
<terminal>(</terminal>
</bgf:expression>
<bgf:expression>
<choice>
<bgf:expression>
<sequence>
<bgf:expression>
<nonterminal>Identifier</nonterminal>
</bgf:expression>
<bgf:expression>
<terminal>=</terminal>
</bgf:expression>
</sequence>
</bgf:expression>
<bgf:expression>
<epsilon/>
</bgf:expression>
</choice>
</bgf:expression>
<bgf:expression>
<nonterminal>ElementValue</nonterminal>
</bgf:expression>
<bgf:expression>
<terminal>)</terminal>
</bgf:expression>
</sequence>
</bgf:expression>
<bgf:expression>
<epsilon/>
</bgf:expression>
</choice>
</bgf:expression>
</sequence>
</bgf:expression>
</xbgf:factor>
<xbgf:massage>
<bgf:expression>
<choice>
<bgf:expression>
<sequence>
<bgf:expression>
<nonterminal>Identifier</nonterminal>
</bgf:expression>
<bgf:expression>
<terminal>=</terminal>
</bgf:expression>
</sequence>
</bgf:expression>
<bgf:expression>
<epsilon/>
</bgf:expression>
</choice>
</bgf:expression>
<bgf:expression>
<optional>
<bgf:expression>
<sequence>
<bgf:expression>
<nonterminal>Identifier</nonterminal>
</bgf:expression>
<bgf:expression>
<terminal>=</terminal>
</bgf:expression>
</sequence>
</bgf:expression>
</optional>
</bgf:expression>
</xbgf:massage>
<xbgf:massage>
<bgf:expression>
<choice>
<bgf:expression>
<sequence>
<bgf:expression>
<terminal>(</terminal>
</bgf:expression>
<bgf:expression>
<optional>
<bgf:expression>
<sequence>
<bgf:expression>
<nonterminal>Identifier</nonterminal>
</bgf:expression>
<bgf:expression>
<terminal>=</terminal>
</bgf:expression>
</sequence>
</bgf:expression>
</optional>
</bgf:expression>
<bgf:expression>
<nonterminal>ElementValue</nonterminal>
</bgf:expression>
<bgf:expression>
<terminal>)</terminal>
</bgf:expression>
</sequence>
</bgf:expression>
<bgf:expression>
<epsilon/>
</bgf:expression>
</choice>
</bgf:expression>
<bgf:expression>
<optional>
<bgf:expression>
<sequence>
<bgf:expression>
<terminal>(</terminal>
</bgf:expression>
<bgf:expression>
<optional>
<bgf:expression>
<sequence>
<bgf:expression>
<nonterminal>Identifier</nonterminal>
</bgf:expression>
<bgf:expression>
<terminal>=</terminal>
</bgf:expression>
</sequence>
</bgf:expression>
</optional>
</bgf:expression>
<bgf:expression>
<nonterminal>ElementValue</nonterminal>
</bgf:expression>
<bgf:expression>
<terminal>)</terminal>
</bgf:expression>
</sequence>
</bgf:expression>
</optional>
</bgf:expression>
</xbgf:massage>
<!-- ISSUE PERMISSIVENESS
ExceptionTypeList vs QualifiedIdentifierList -->
<!-- GENERALITY -->
<!-- RELAXATION -->
<xbgf:undefine>ExceptionTypeList</xbgf:undefine>
<!-- RELAXATION -->
<xbgf:unite>
<add>ExceptionTypeList</add>
<to>QualifiedIdentifierList</to>
</xbgf:unite>
<xbgf:inline>Throws</xbgf:inline>
<xbgf:eliminate>ExceptionType</xbgf:eliminate>
<!--
can't match right away because one is left recursion and the other one is right
- Fail: ElementValues.
- [], ,([n('ElementValue'), ?(,([t((',')), n('ElementValues')]))])
vs.
- [], ;([n('ElementValue'), ,([n('ElementValues'), t((',')), n('ElementValue')])])
-->
<xbgf:deyaccify>ElementValues</xbgf:deyaccify>
<xbgf:massage>
<bgf:expression>
<sequence>
<bgf:expression>
<nonterminal>ElementValue</nonterminal>
</bgf:expression>
<bgf:expression>
<star>
<bgf:expression>
<sequence>
<bgf:expression>
<terminal>,</terminal>
</bgf:expression>
<bgf:expression>
<nonterminal>ElementValue</nonterminal>
</bgf:expression>
</sequence>
</bgf:expression>
</star>
</bgf:expression>
</sequence>
</bgf:expression>
<bgf:expression>
<sequence>
<bgf:expression>
<star>
<bgf:expression>
<sequence>
<bgf:expression>
<nonterminal>ElementValue</nonterminal>
</bgf:expression>
<bgf:expression>
<terminal>,</terminal>
</bgf:expression>
</sequence>
</bgf:expression>
</star>
</bgf:expression>
<bgf:expression>
<nonterminal>ElementValue</nonterminal>
</bgf:expression>
</sequence>
</bgf:expression>
</xbgf:massage>
<xbgf:yaccify>
<bgf:production>
<nonterminal>ElementValues</nonterminal>
<bgf:expression>
<nonterminal>ElementValue</nonterminal>
</bgf:expression>
</bgf:production>
<bgf:production>
<nonterminal>ElementValues</nonterminal>
<bgf:expression>
<sequence>
<bgf:expression>
<nonterminal>ElementValue</nonterminal>
</bgf:expression>
<bgf:expression>
<terminal>,</terminal>
</bgf:expression>
<bgf:expression>
<nonterminal>ElementValues</nonterminal>
</bgf:expression>
</sequence>
</bgf:expression>
</bgf:production>
</xbgf:yaccify>
<xbgf:horizontal>ElementValues</xbgf:horizontal>
<xbgf:factor>
<bgf:expression>
<choice>
<bgf:expression>
<nonterminal>ElementValue</nonterminal>
</bgf:expression>
<bgf:expression>
<sequence>
<bgf:expression>
<nonterminal>ElementValue</nonterminal>
</bgf:expression>
<bgf:expression>
<terminal>,</terminal>
</bgf:expression>
<bgf:expression>
<nonterminal>ElementValues</nonterminal>
</bgf:expression>
</sequence>
</bgf:expression>
</choice>
</bgf:expression>
<bgf:expression>
<sequence>
<bgf:expression>
<nonterminal>ElementValue</nonterminal>
</bgf:expression>
<bgf:expression>
<choice>
<bgf:expression>
<sequence>
<bgf:expression>
<terminal>,</terminal>
</bgf:expression>
<bgf:expression>
<nonterminal>ElementValues</nonterminal>
</bgf:expression>
</sequence>
</bgf:expression>
<bgf:expression>
<epsilon/>
</bgf:expression>
</choice>
</bgf:expression>
</sequence>
</bgf:expression>
</xbgf:factor>
<xbgf:massage>
<bgf:expression>
<choice>
<bgf:expression>
<sequence>
<bgf:expression>
<terminal>,</terminal>
</bgf:expression>
<bgf:expression>
<nonterminal>ElementValues</nonterminal>
</bgf:expression>
</sequence>
</bgf:expression>
<bgf:expression>
<epsilon/>
</bgf:expression>
</choice>
</bgf:expression>
<bgf:expression>
<optional>
<bgf:expression>
<sequence>
<bgf:expression>
<terminal>,</terminal>
</bgf:expression>
<bgf:expression>
<nonterminal>ElementValues</nonterminal>
</bgf:expression>
</sequence>
</bgf:expression>
</optional>
</bgf:expression>
</xbgf:massage>
<!--
- Fail: ImportDeclaration.
- [], ,([t(import), ?(t(static)), n(Identifier), *(,([t(.), n(Identifier)])), ?(,([t(.), t(*)])), t((;))])
vs.
- [], ;([,([t(import), n(QualifiedIdentifier), ?(,([t(.), t(*)])), t((;))]), n(SingleStaticImportDeclaration), n(StaticImportOnDemandDeclaration)])
-->
<xbgf:inline>SingleStaticImportDeclaration</xbgf:inline>
<xbgf:inline>StaticImportOnDemandDeclaration</xbgf:inline>
<!--
- Fail: InterfaceBodyDeclaration.
- [], ;([t((;)), ,([*(n(Modifier)), n(InterfaceMemberDecl)])])
vs.
- [], t((;))
- [], ,([n(ModifiersOpt), n(InterfaceDeclaration)])
- [], ,([n(ModifiersOpt), n(ClassDeclaration)])
- [], ,([*(n(Modifier)), ?(n(TypeParameters)), ;([n(Type), t(void)]), n(Identifier), t((), ?(n(FormalParameterList)), t()), n(BracketsOpt), ?(,([t(throws), n(QualifiedIdentifierList)])), t((;))])
-->
<!--<xbgf:unfold>
<nonterminal>ModifiersOpt</nonterminal>
<in>
<nonterminal>InterfaceBodyDeclaration</nonterminal>
</in>
</xbgf:unfold>
<xbgf:horizontal>InterfaceBodyDeclaration</xbgf:horizontal>-->
<xbgf:massage>
<bgf:expression>
<optional>
<bgf:expression>
<nonterminal>TypeParameters</nonterminal>
</bgf:expression>
</optional>
</bgf:expression>
<bgf:expression>
<choice>
<bgf:expression>
<nonterminal>TypeParameters</nonterminal>
</bgf:expression>
<bgf:expression>
<epsilon/>
</bgf:expression>
</choice>
</bgf:expression>
<in>
<nonterminal>InterfaceBodyDeclaration</nonterminal>
</in>
</xbgf:massage>
<xbgf:distribute>
<nonterminal>InterfaceBodyDeclaration</nonterminal>
</xbgf:distribute>
<xbgf:vertical>
<nonterminal>InterfaceBodyDeclaration</nonterminal>
</xbgf:vertical>
<!-- ISSUE PERMISSIVENESS
- Fail: InterfaceBodyDeclaration.
- [], ,([n(ModifiersOpt), t(void), n(Identifier), t((), ?(n(FormalParameterDecls)), t()), ?(,([t(throws), n(QualifiedIdentifierList)])), t((;))])
- [], ,([n(ModifiersOpt), n(TypeParameters), t(void), n(Identifier), t((), ?(n(FormalParameterDecls)), t()), n(BracketsOpt), ?(,([t(throws), n(QualifiedIdentifierList)])), t((;))])
- [], ,([n(ModifiersOpt), n(TypeParameters), n(Type), n(Identifier), t((), ?(n(FormalParameterDecls)), t()), n(BracketsOpt), ?(,([t(throws), n(QualifiedIdentifierList)])), t((;))])
- [], ,([n(ModifiersOpt), n(Type), n(Identifier), t((), ?(n(FormalParameterDecls)), t()), n(BracketsOpt), ?(,([t(throws), n(QualifiedIdentifierList)])), t((;))])
- [], ,([n(ModifiersOpt), n(Type), n(Identifier), n(ConstantDeclaratorRest), *(,([t((,)), n(ConstantDeclarator)])), t((;))])
vs.
- [], ,([n(ModifiersOpt), t(void), n(Identifier), t((), ?(n(FormalParameterList)), t()), n(BracketsOpt), ?(,([t(throws), n(QualifiedIdentifierList)])), t((;))])
- [], ,([n(ModifiersOpt), n(Type), n(Identifier), t((), ?(n(FormalParameterList)), t()), n(BracketsOpt), ?(,([t(throws), n(QualifiedIdentifierList)])), t((;))])
- [], ,([n(ModifiersOpt), n(TypeParameters), t(void), n(Identifier), t((), ?(n(FormalParameterList)), t()), n(BracketsOpt), ?(,([t(throws), n(QualifiedIdentifierList)])), t((;))])
- [], ,([n(ModifiersOpt), n(TypeParameters), n(Type), n(Identifier), t((), ?(n(FormalParameterList)), t()), n(BracketsOpt), ?(,([t(throws), n(QualifiedIdentifierList)])), t((;))])
- [], ,([n(ModifiersOpt), n(Type), n(VariableDeclarators), t((;))])
-->
<!-- TODO: too brutal -->
<!-- GENERALITY -->
<!-- RELAXATION -->
<xbgf:replace>
<bgf:expression>
<nonterminal>FormalParameterList</nonterminal>
</bgf:expression>
<bgf:expression>
<nonterminal>FormalParameterDecls</nonterminal>
</bgf:expression>
</xbgf:replace>
<xbgf:unfold>
<nonterminal>BracketsOpt</nonterminal>
<in>
<nonterminal>InterfaceBodyDeclaration</nonterminal>
</in>
</xbgf:unfold>
<!-- CORRECTION -->
<xbgf:disappear>
<bgf:production>
<nonterminal>InterfaceBodyDeclaration</nonterminal>
<bgf:expression>
<sequence>
<bgf:expression>
<nonterminal>ModifiersOpt</nonterminal>
</bgf:expression>
<bgf:expression>
<terminal>void</terminal>
</bgf:expression>
<bgf:expression>
<nonterminal>Identifier</nonterminal>
</bgf:expression>
<bgf:expression>
<terminal>(</terminal>
</bgf:expression>
<bgf:expression>
<optional>
<bgf:expression>
<nonterminal>FormalParameterDecls</nonterminal>
</bgf:expression>
</optional>
</bgf:expression>
<bgf:expression>
<terminal>)</terminal>
</bgf:expression>
<bgf:expression>
<marked>
<bgf:expression>
<star>
<bgf:expression>
<sequence>
<bgf:expression>
<terminal>[</terminal>
</bgf:expression>
<bgf:expression>
<terminal>]</terminal>
</bgf:expression>
</sequence>
</bgf:expression>
</star>
</bgf:expression>
</marked>
</bgf:expression>
<bgf:expression>
<optional>
<bgf:expression>
<sequence>
<bgf:expression>
<terminal>throws</terminal>
</bgf:expression>
<bgf:expression>
<nonterminal>QualifiedIdentifierList</nonterminal>
</bgf:expression>
</sequence>
</bgf:expression>
</optional>
</bgf:expression>
<bgf:expression>
<terminal>;</terminal>
</bgf:expression>
</sequence>
</bgf:expression>
</bgf:production>
</xbgf:disappear>
<xbgf:fold>
<nonterminal>BracketsOpt</nonterminal>
<in>
<nonterminal>InterfaceBodyDeclaration</nonterminal>
</in>
</xbgf:fold>
<!-- ???
- Fail: InterfaceBodyDeclaration.
- [], ,([n(ModifiersOpt), n(Type), n(Identifier), n(ConstantDeclaratorRest), *(,([t((,)), n(ConstantDeclarator)])), t((;))])
vs.
- [], ,([n(ModifiersOpt), n(Type), n(VariableDeclarators), t((;))])
-->
<xbgf:introduce>
<bgf:production>
<nonterminal>ConstantDeclaratorRest</nonterminal>
<bgf:expression>
<sequence>
<bgf:expression>
<nonterminal>BracketsOpt</nonterminal>
</bgf:expression>
<bgf:expression>
<terminal>=</terminal>
</bgf:expression>
<bgf:expression>
<nonterminal>VariableInitializer</nonterminal>
</bgf:expression>
</sequence>
</bgf:expression>
</bgf:production>
</xbgf:introduce>
<xbgf:introduce>
<bgf:production>