grammar org.xtext.example.mydsl.MyDsl with org.eclipse.xtext.common.Terminals

generate myDsl "http://www.xtext.org/example/mydsl/MyDsl"

import "http://www.eclipse.org/xtext/common/JavaVMTypes" as types

Model:
	statements += Statement*;
	
Statement:
	SetStatement | GetStatement
;


GetStatement:
	"with" class=[types::JvmDeclaredType|FQN] "get" "the" op=[types::JvmOperation]
;

SetStatement:
	"with" class=[types::JvmDeclaredType|FQN] "set" "the" op=[types::JvmOperation] "to" value=STRING
;

FQN: ID ("." ID)*;

public class MyDslScopeProvider extends AbstractDeclarativeScopeProvider {
	
	IScope scope_Statement_op(SetStatement context, EReference ref) {
		Iterable<JvmOperation> setters = Iterables.filter(context.getClass_().getDeclaredOperations(), new Predicate<JvmOperation>() {
			public boolean apply(JvmOperation op) {
				return op.getSimpleName().startsWith("set") && op.getParameters().size() == 1;
			}
		});
		
		Function<JvmOperation, QualifiedName> nameComputation = new Function<JvmOperation, QualifiedName>() {
			public QualifiedName apply(JvmOperation op) {
				return QualifiedName.create(op.getSimpleName().substring(3).toLowerCase());
			}
		};
		return Scopes.scopeFor(setters, nameComputation , IScope.NULLSCOPE);
	}
	
	IScope scope_Statement_op(GetStatement context, EReference ref) {
		Iterable<JvmOperation> setters = Iterables.filter(context.getClass_().getDeclaredOperations(), new Predicate<JvmOperation>() {
			public boolean apply(JvmOperation op) {
				return op.getSimpleName().startsWith("get") && op.getParameters().size() == 0;
			}
		});
		
		Function<JvmOperation, QualifiedName> nameComputation = new Function<JvmOperation, QualifiedName>() {
			public QualifiedName apply(JvmOperation op) {
				return QualifiedName.create(op.getSimpleName().substring(3).toLowerCase());
			}
		};
		return Scopes.scopeFor(setters, nameComputation , IScope.NULLSCOPE);
	}

}