--
-- *******************************************************************************
-- Copyright (c) 2009 Mia-Software and others.
-- All rights reserved. This program and the accompanying materials
-- are made available under the terms of the Eclipse Public License v2.0
-- which accompanies this distribution, and is available at
-- http://www.eclipse.org/legal/epl-v20.html
-- 
-- Contributors:
-- 
--     Fabien Giquel (Mia-Software) - initial API and implementation
-- *******************************************************************************
--
--

-- @nsURI http://www.eclipse.org/MoDisco/Java/0.2.incubation/java
-- @nsPrefix java
package java {

	abstract class AbstractMethodDeclaration extends BodyDeclaration {
		reference body[0-1] container : Block;
		reference parameters[*] ordered container : SingleVariableDeclaration oppositeOf methodDeclaration;	
		reference thrownExceptions[*] ordered container : TypeAccess;
		reference typeParameters[*] ordered container : TypeParameter;
		reference usagesInDocComments[*] : MethodRef oppositeOf method; -- NamedElementRef substitute opposite
		reference usages[*] : AbstractMethodInvocation oppositeOf method; -- NamedElementRef substitute opposite
	}
			
	
	abstract class AbstractMethodInvocation extends ASTNode {
		reference method : AbstractMethodDeclaration oppositeOf usages; -- NamedElementRef substitute
		reference arguments[*] ordered container : Expression;
		reference typeArguments[*] ordered container : TypeAccess;
	}
	
	abstract class AbstractTypeDeclaration extends BodyDeclaration, Type {
		reference bodyDeclarations[*] ordered container : BodyDeclaration oppositeOf abstractTypeDeclaration;
		reference commentsBeforeBody[*] ordered container : Comment;
		reference commentsAfterBody[*] ordered container : Comment;
		reference "package"[0-1] : Package oppositeOf ownedElements;
		reference superInterfaces[*] ordered container : TypeAccess;
	}
					
	
	abstract class AbstractTypeQualifiedExpression extends Expression {
		reference qualifier[0-1] container : TypeAccess;
	}
	
	abstract class AbstractVariablesContainer extends ASTNode {
		reference type[0-1] container : TypeAccess;
		reference fragments[*] ordered container : VariableDeclarationFragment oppositeOf variablesContainer;
	}
	
	class Annotation extends Expression {
		reference type container : TypeAccess;
		reference values[*] ordered container : AnnotationMemberValuePair;
	}
	
	class Archive extends NamedElement {
		attribute originalFilePath : String;
		reference classFiles[*] container : ClassFile;
		reference manifest[0-1] container : Manifest;
	}
	
	class AssertStatement extends Statement {
		reference message[0-1] container : Expression;
		reference expression container : Expression;
	}
	
	abstract class ASTNode {
		reference comments[*] ordered container : Comment;
		reference originalCompilationUnit[0-1] : CompilationUnit;
		reference originalClassFile[0-1] : ClassFile;
	}
	
	class AnnotationMemberValuePair extends NamedElement {
		reference member[0-1] : AnnotationTypeMemberDeclaration oppositeOf usages; -- NamedElementRef substitute
		reference value container : Expression;
	}

	class AnnotationTypeDeclaration extends AbstractTypeDeclaration {
	}
	
	class AnnotationTypeMemberDeclaration extends BodyDeclaration {
		reference default[0-1] container : Expression;
		reference type container : TypeAccess;
		reference usages[*] : AnnotationMemberValuePair oppositeOf member; -- NamedElementRef substitute opposite
	}
	
	class AnonymousClassDeclaration extends ASTNode {
		reference bodyDeclarations[*] ordered container : BodyDeclaration oppositeOf anonymousClassDeclarationOwner;
		reference classInstanceCreation[0-1] : ClassInstanceCreation oppositeOf anonymousClassDeclaration;
	}
	
	class ArrayAccess extends Expression {
		reference array container : Expression;
		reference index container : Expression;
	}

	class ArrayCreation extends Expression {
		reference dimensions[*] ordered container : Expression;
		reference initializer[0-1] container : ArrayInitializer;
		reference type container : TypeAccess ;
	}

	class ArrayInitializer extends Expression {
		reference expressions[*] ordered container : Expression;
	}

	class ArrayLengthAccess extends Expression {
		reference array container : Expression;
	}
	
	class ArrayType extends Type {
		attribute dimensions : Integer;
		reference elementType container : TypeAccess ;
	}
	
	class Assignment extends Expression {
		reference leftHandSide container : Expression;
		attribute operator : AssignmentKind;
		reference rightHandSide container : Expression;
	}
		
	enumeration AssignmentKind {
		-- @literalValue "="
		literal ASSIGN;
		-- @literalValue "+="
		literal PLUS_ASSIGN; 
		-- @literalValue "-="
		literal MINUS_ASSIGN; 
 		-- @literalValue "*="
    	literal TIMES_ASSIGN;
		-- @literalValue "/="
    	literal DIVIDE_ASSIGN;
		-- @literalValue "&="
    	literal BIT_AND_ASSIGN;
		-- @literalValue "|="
    	literal BIT_OR_ASSIGN;
		-- @literalValue "^="
    	literal BIT_XOR_ASSIGN;
		-- @literalValue "%="
    	literal REMAINDER_ASSIGN;
		-- @literalValue "<<="
    	literal LEFT_SHIFT_ASSIGN;
		-- @literalValue ">>="
    	literal RIGHT_SHIFT_SIGNED_ASSIGN;
		-- @literalValue ">>>="
    	literal RIGHT_SHIFT_UNSIGNED_ASSIGN;	
	}
	
	abstract class BodyDeclaration extends NamedElement {
		reference abstractTypeDeclaration[0-1] : AbstractTypeDeclaration oppositeOf bodyDeclarations;
		reference annotations[*] ordered container : Annotation;
		reference anonymousClassDeclarationOwner[0-1] : AnonymousClassDeclaration oppositeOf bodyDeclarations;
		reference modifier[0..1] container : Modifier oppositeOf bodyDeclaration;
	}
	
	class BooleanLiteral extends Expression {
		attribute value : Boolean;
	}
	
	class BlockComment extends Comment {
		
	}
	
	class Block extends Statement {
		reference statements[*] ordered container : Statement;
	}
	
	class BreakStatement extends Statement {
		reference label[0-1] : LabeledStatement oppositeOf usagesInBreakStatements; -- NamedElementRef substitute
	}
	
	class CastExpression extends Expression {
		reference expression container : Expression;
		reference type  container : TypeAccess ;
	}
	
	class CatchClause extends Statement {
		reference exception container : SingleVariableDeclaration oppositeOf catchClause;
		reference body container : Block;
	}
	
	
	class CharacterLiteral extends Expression {
		attribute escapedValue : String;
	}
	
	class ClassFile extends NamedElement {
		attribute originalFilePath : String;
		reference type[0-1] : AbstractTypeDeclaration;
		reference attachedSource[0-1] : CompilationUnit;
		reference "package"[0-1] : Package;
	}
	
	class ClassInstanceCreation extends Expression, AbstractMethodInvocation {
		reference anonymousClassDeclaration[0-1] container : AnonymousClassDeclaration oppositeOf classInstanceCreation;
		reference expression[0-1] container : Expression;
		reference type  container : TypeAccess ;
	}
	
	class ConstructorDeclaration extends AbstractMethodDeclaration {
	}
	
	class ConditionalExpression extends Expression {
		reference elseExpression container : Expression;
		reference expression container : Expression;
		reference thenExpression container : Expression;
	}
	
	class ConstructorInvocation extends Statement, AbstractMethodInvocation {
	}
	
	class ClassDeclaration extends TypeDeclaration {
		reference superClass[0-1]  container : TypeAccess ;
	}
	
	abstract class Comment extends ASTNode {
		attribute content : String;
		attribute enclosedByParent : Boolean;
		attribute prefixOfParent : Boolean;
	}
	
	class CompilationUnit extends NamedElement {
		attribute originalFilePath : String;
		reference commentList[*] ordered : Comment;
		reference imports[*] ordered container : ImportDeclaration;
		reference "package"[0-1] : Package;
		reference types[*] ordered : AbstractTypeDeclaration;
	}
	
	class ContinueStatement extends Statement {
		reference label[0-1] : LabeledStatement oppositeOf usagesInContinueStatements; -- NamedElementRef substitute
	}
	
	class DoStatement extends Statement {
		reference expression container : Expression;
		reference body container : Statement;
	}

	class EmptyStatement extends Statement {
		
	}
	
	class EnhancedForStatement extends Statement {
		reference body container : Statement;
		reference expression container : Expression;
		reference parameter container : SingleVariableDeclaration oppositeOf enhancedForStatement;
	}
	
	-- EnumConstantDeclaration is considered as VariableDeclaration to allowing 
	-- to be referenced by VariableAccess and without introducing more complex VariableDeclaration hierarchy
	-- or a new EnumConstantAccess type
	class EnumConstantDeclaration extends BodyDeclaration, VariableDeclaration {
		reference anonymousClassDeclaration[0-1] container : AnonymousClassDeclaration;
		reference arguments[*] ordered container : Expression;
	}
	
	class EnumDeclaration extends AbstractTypeDeclaration {
		reference enumConstants[*] ordered container : EnumConstantDeclaration;
	}
	
	abstract class Expression extends ASTNode {
	}
	
	class ExpressionStatement extends Statement {
		reference expression container : Expression;
	}
	
	class FieldAccess extends Expression {
		reference field container : SingleVariableAccess;
		reference expression container : Expression;
	}	
	
	class FieldDeclaration extends BodyDeclaration, AbstractVariablesContainer {
	}
	
	class ForStatement extends Statement {
		reference expression[0-1] container : Expression;
		reference updaters[*] ordered container : Expression;
		reference initializers[*] ordered container : Expression;
		reference body container : Statement;
	}
	
	class IfStatement extends Statement {
		reference expression container : Expression;
		reference thenStatement container : Statement;
		reference elseStatement[0-1] container : Statement;
	}
	
	class ImportDeclaration extends ASTNode {
		attribute static[0-1] : Boolean;
		reference importedElement : NamedElement oppositeOf usagesInImports; -- NamedElementRef substitute
	}
	
	class InfixExpression extends Expression {
		attribute operator : InfixExpressionKind;
		reference rightOperand container : Expression;
		reference leftOperand container : Expression;
		reference extendedOperands[*] ordered container : Expression;
	}
	
	enumeration InfixExpressionKind {
		-- @literalValue "*"
	    literal	TIMES;
		-- @literalValue "/"
 	    literal	DIVIDE;
		-- @literalValue "%"
	    literal	REMAINDER;
		-- @literalValue "+"
	    literal	PLUS;
		-- @literalValue "-"
	    literal	MINUS;  
		-- @literalValue "<<"
	    literal	LEFT_SHIFT;
		-- @literalValue ">>"
	    literal	RIGHT_SHIFT_SIGNED;
		-- @literalValue ">>>"
	    literal	RIGHT_SHIFT_UNSIGNED;
		-- @literalValue "<"
	    literal	LESS;
		-- @literalValue ">"
	    literal	GREATER;
		-- @literalValue "<="
	    literal	LESS_EQUALS;
		-- @literalValue ">="
	    literal	GREATER_EQUALS;
		-- @literalValue "=="
	    literal	EQUALS;
		-- @literalValue "!="
	    literal	NOT_EQUALS;
		-- @literalValue "^"
	    literal	XOR;
		-- @literalValue "&"
 	    literal	AND;
		-- @literalValue "|"
	    literal	OR;
		-- @literalValue "&&"
	    literal	CONDITIONAL_AND;
		-- @literalValue "||"
	    literal	CONDITIONAL_OR;
	}
	
	enumeration InheritanceKind {
		literal "none";
		literal "abstract";
		literal final;
	}
	
	class Initializer extends BodyDeclaration {
		reference body container : Block;
	}
	
	class InstanceofExpression extends Expression {
		reference rightOperand container : TypeAccess;
		reference leftOperand container : Expression;
	}
	
	class InterfaceDeclaration extends TypeDeclaration {
	}
	
	class Javadoc extends Comment {
		reference tags[*] ordered container : TagElement;
	}
	
	class LabeledStatement extends NamedElement, Statement {
		reference body container : Statement;
		reference usagesInBreakStatements[*] : BreakStatement oppositeOf label; -- NamedElementRef substitute opposite
		reference usagesInContinueStatements[*] : ContinueStatement oppositeOf label; -- NamedElementRef substitute opposite
	}
	
	class LineComment extends Comment {
		
	}
	
	class Manifest {
		reference mainAttributes [*] container : ManifestAttribute;
		reference entryAttributes [*] container : ManifestEntry;
	}
	
	class ManifestAttribute {
		attribute key : String;
		attribute value : String;
	}
	
	class ManifestEntry {
		attribute name[0-1] : String;
		reference attributes [*] container : ManifestAttribute;
	}
	
	-- member can be a MethodDeclaration/Constructor/VariableDeclarationFragment/Type
	class MemberRef extends ASTNode {
		reference member : NamedElement;
		reference qualifier[0-1]  container : TypeAccess ;
	}
			
	
	class MethodDeclaration extends AbstractMethodDeclaration {
		attribute extraArrayDimensions : Integer;
		reference returnType[0-1]  container : TypeAccess ;
		reference redefinedMethodDeclaration[0-1] : MethodDeclaration oppositeOf redefinitions; -- NamedElementRef substitute
		reference redefinitions[*] : MethodDeclaration oppositeOf redefinedMethodDeclaration;-- NamedElementRef substitute opposite
	}
	
	class MethodInvocation extends Expression, AbstractMethodInvocation {
		reference expression[0-1] container : Expression;
	}
	
	class MethodRef extends ASTNode {
		reference method : AbstractMethodDeclaration oppositeOf usagesInDocComments; -- NamedElementRef substitute
		reference qualifier[0-1]  container : TypeAccess ;
		reference parameters[*] ordered container : MethodRefParameter;
	}


	class MethodRefParameter extends ASTNode {
		attribute name[0-1] : String;
		attribute varargs : Boolean;
		reference type  container : TypeAccess ;
	}
	
	class Model {
		attribute name[0-1] : String;
		reference ownedElements[*] container : Package oppositeOf model;
		reference orphanTypes[*] container : Type;
		reference unresolvedItems[*] container : UnresolvedItem;
		reference compilationUnits[*] container : CompilationUnit;
		reference classFiles[*] container : ClassFile;
		reference archives[*] container : Archive;
	}
	
	class Modifier extends ASTNode {
		attribute visibility : VisibilityKind;
		attribute inheritance : InheritanceKind;
		attribute static : Boolean;
		attribute transient : Boolean;
		attribute volatile : Boolean;
		attribute native : Boolean;
		attribute strictfp : Boolean;
		attribute synchronized : Boolean;
		reference bodyDeclaration[0-1] : BodyDeclaration oppositeOf modifier;
		reference singleVariableDeclaration[0-1] : SingleVariableDeclaration oppositeOf modifier;
		reference variableDeclarationStatement[0-1] : VariableDeclarationStatement oppositeOf modifier;
		reference variableDeclarationExpression[0-1] : VariableDeclarationExpression oppositeOf modifier;
	}
	
	abstract class NamedElement extends ASTNode {
		attribute name[0-1] : String;
		attribute proxy : Boolean;
		reference usagesInImports[*] : ImportDeclaration oppositeOf importedElement; -- NamedElementRef substitute opposite
	}
	
	abstract class NamespaceAccess extends ASTNode {
	}
		
	class NumberLiteral extends Expression {
		attribute tokenValue : String;
	}

	class NullLiteral extends Expression {
		
	}
	
	class Package extends NamedElement {
		reference ownedElements[*] container : AbstractTypeDeclaration oppositeOf "package";
		reference model[0-1] : Model oppositeOf ownedElements;
		reference ownedPackages[*] container : Package oppositeOf "package";
		reference "package"[0-1] : Package oppositeOf ownedPackages;
		reference usagesInPackageAccess[*] : PackageAccess oppositeOf "package";
	}
	
	class PackageAccess extends NamespaceAccess {
		reference "package" : Package oppositeOf usagesInPackageAccess;
		reference qualifier[0-1] container : PackageAccess;
	}
	
	-- arguments types are TypeAccess rather than direct Type reference
	-- for injector implementation constraints (unicity and ordering)
	class ParameterizedType extends Type {
		reference type  container : TypeAccess ;
		reference typeArguments[*] ordered container : TypeAccess;
	}
	
	class ParenthesizedExpression extends Expression {
		reference expression container : Expression;
	}

	class PostfixExpression extends Expression {
		attribute operator : PostfixExpressionKind;
		reference operand container : Expression;
	}
	
	enumeration PostfixExpressionKind {
		-- @literalValue "++"
	    literal INCREMENT;
		-- @literalValue "--"
   		literal DECREMENT;
	}
	
	class PrefixExpression extends Expression {
		attribute operator : PrefixExpressionKind;
		reference operand container : Expression;
	}

	enumeration PrefixExpressionKind {
		-- @literalValue "++"
	    literal INCREMENT;
		-- @literalValue "--"
	    literal	DECREMENT;
		-- @literalValue "+"
	    literal	PLUS;
		-- @literalValue "-"
	    literal	MINUS;
		-- @literalValue "~"
	    literal	COMPLEMENT;
		-- @literalValue "!"
	    literal	NOT;
   	}
	
	class PrimitiveType extends Type {
	}

	class PrimitiveTypeBoolean extends PrimitiveType {
		
	}

	class PrimitiveTypeByte extends PrimitiveType {
		
	}

	class PrimitiveTypeChar extends PrimitiveType {
		
	}

	class PrimitiveTypeDouble extends PrimitiveType {
		
	}

	class PrimitiveTypeShort extends PrimitiveType {
		
	}

	class PrimitiveTypeFloat extends PrimitiveType {
		
	}

	class PrimitiveTypeInt extends PrimitiveType {
		
	}

	class PrimitiveTypeLong extends PrimitiveType {
		
	}

	class PrimitiveTypeVoid extends PrimitiveType {
		
	}
		
	class ReturnStatement extends Statement {
		reference expression[0-1] container : Expression;
	}
	
	-- This indirection metaclass is necessary for referencing variables in statements.
   	-- e.g. method invocations args may be some variable access or other expressions (literal...). So
   	-- - method invocations args must be Expression instances
   	-- - method invocations args must be owned (containment reference) by the MethodInvocation instance
   	-- - it involves injector implementation constraints (args unicity and ordering)
   	-- 
   	-- qualifier could be a acces to type or to a package --> Expression
   	class SingleVariableAccess extends Expression {
		reference variable : VariableDeclaration oppositeOf usageInVariableAccess; -- NamedElementRef substitute
		reference qualifier[0-1] container : Expression;
	}
	
	class SingleVariableDeclaration extends VariableDeclaration {
		reference modifier[0..1] container : Modifier oppositeOf singleVariableDeclaration;
		attribute varargs : Boolean;
		reference type container : TypeAccess ;
		reference annotations[*] ordered container : Annotation;
		reference methodDeclaration[0-1] : AbstractMethodDeclaration oppositeOf parameters;
		reference catchClause[0-1] : CatchClause oppositeOf exception;
		reference enhancedForStatement[0-1] : EnhancedForStatement oppositeOf parameter;
	}
	
	abstract class Statement extends ASTNode {
	}
	
	class StringLiteral extends Expression {
		attribute escapedValue : String;
	}
	
	class SuperConstructorInvocation extends Statement, AbstractMethodInvocation {
		reference expression[0-1] container : Expression;
	}
	
	class SuperFieldAccess extends AbstractTypeQualifiedExpression {
		reference field container : SingleVariableAccess;
	}

	class SuperMethodInvocation extends AbstractTypeQualifiedExpression, AbstractMethodInvocation {
	}
	
	class SwitchCase extends Statement {
		attribute "default" : Boolean;
		reference expression[0-1] container : Expression;
	}

	class SwitchStatement extends Statement {
		reference expression container : Expression;
		reference statements[*] ordered container : Statement;
	}
	
	class SynchronizedStatement extends Statement {
		reference body container : Block;
		reference expression container : Expression;
	}
	
	class TagElement extends ASTNode {
		attribute tagName[0-1] : String;
		reference fragments[*] ordered container : ASTNode;
	}

	class TextElement extends ASTNode {
		attribute text : String;
	}
		
	class ThisExpression extends AbstractTypeQualifiedExpression {
	}	
	
	class ThrowStatement extends Statement {
		reference expression container : Expression;
	}
	
	class TryStatement extends Statement {
		reference body container : Block;
		reference finally[0-1] container : Block;
		reference catchClauses[*] ordered container : CatchClause;
	}
	
	abstract class Type extends NamedElement {
		reference usagesInTypeAccess[*] : TypeAccess oppositeOf type; -- NamedElementRef substitute opposite
	}

	class TypeAccess extends Expression, NamespaceAccess {
		reference type : Type oppositeOf usagesInTypeAccess; -- NamedElementRef substitute 
		-- qualifier is a TypeAcces or PackageAccess
		reference qualifier[0-1] container : NamespaceAccess;
	}
	
	abstract class TypeDeclaration extends AbstractTypeDeclaration {
		reference typeParameters[*] ordered container : TypeParameter;
	}
	
	class TypeDeclarationStatement extends Statement {
		reference declaration container : AbstractTypeDeclaration;
	}

	class TypeLiteral extends Expression {
		reference type container : TypeAccess;
	}
	
	-- TypeParameter must be a Type to be referenced as a type in method parameters
	class TypeParameter extends Type {
		reference bounds[*] ordered container : TypeAccess;
	}
	
	class UnresolvedItem extends NamedElement {
	}
	
	class UnresolvedItemAccess extends Expression, NamespaceAccess {
		reference element[0-1] : UnresolvedItem;
		-- qualifier can be a Expression or a NamespaceAccess
		reference qualifier[0-1] container : ASTNode;
	}
	
	class UnresolvedAnnotationDeclaration extends AnnotationTypeDeclaration, UnresolvedItem {
	}
	
	class UnresolvedAnnotationTypeMemberDeclaration extends AnnotationTypeMemberDeclaration, UnresolvedItem {
	}
	
	class UnresolvedClassDeclaration extends ClassDeclaration, UnresolvedItem {
	}
	
	class UnresolvedEnumDeclaration extends EnumDeclaration, UnresolvedItem {
	}
	
	class UnresolvedInterfaceDeclaration extends InterfaceDeclaration, UnresolvedItem {
	}
	
	class UnresolvedLabeledStatement extends LabeledStatement, UnresolvedItem {
	}
	
	class UnresolvedMethodDeclaration extends MethodDeclaration, UnresolvedItem {
	}
	
	class UnresolvedSingleVariableDeclaration extends SingleVariableDeclaration, UnresolvedItem {
	}
	
	class UnresolvedType extends Type, UnresolvedItem {
	}
	
	class UnresolvedTypeDeclaration extends AbstractTypeDeclaration, UnresolvedItem {
	}	
	
	class UnresolvedVariableDeclarationFragment extends VariableDeclarationFragment, UnresolvedItem {
	}
	
	abstract class VariableDeclaration extends NamedElement {
		attribute extraArrayDimensions : Integer;
		reference initializer[0-1] container : Expression;
		reference usageInVariableAccess[*] : SingleVariableAccess  oppositeOf variable; -- NamedElementRef substitute opposite
	}
	
	class VariableDeclarationExpression extends Expression, AbstractVariablesContainer {
		reference modifier[0..1] container : Modifier oppositeOf variableDeclarationExpression;
		reference annotations[*] ordered container : Annotation;
	}
	
	class VariableDeclarationFragment extends VariableDeclaration {
		reference variablesContainer[0-1] : AbstractVariablesContainer oppositeOf fragments;
	}
	
	class VariableDeclarationStatement extends Statement, AbstractVariablesContainer {
		attribute extraArrayDimensions : Integer;
		reference modifier[0..1] container : Modifier oppositeOf variableDeclarationStatement;
		reference annotations[*] ordered container : Annotation;
	}
	
	enumeration VisibilityKind {
		literal none;
		literal public;
		literal private;
		literal protected;
	}
	
	class WildCardType extends Type {
		attribute upperBound : Boolean;
		reference bound[0-1] container : TypeAccess;
	}
	
	class WhileStatement extends Statement {
		reference expression container : Expression;
		reference body container : Statement;
	}

}

package PrimitiveTypes {
	datatype Boolean;
	datatype Integer;
	datatype String;
}