1 files changed, 68 insertions, 0 deletions
diff --git a/rba.tool.editor/src/rba/tool/editor/scoping/internal/RBAModelMemberOperationRegistry.xtend b/rba.tool.editor/src/rba/tool/editor/scoping/internal/RBAModelMemberOperationRegistry.xtend
new file mode 100644
index 0000000..b641362
--- /dev/null
+++ b/rba.tool.editor/src/rba/tool/editor/scoping/internal/RBAModelMemberOperationRegistry.xtend
@@ -0,0 +1,68 @@
+package rba.tool.editor.scoping.internal
+
+import com.google.inject.Inject
+import com.google.inject.Singleton
+import java.util.Collections
+import java.util.Map
+import java.util.Set
+import java.util.regex.Matcher
+import java.util.regex.Pattern
+import org.eclipse.emf.ecore.EObject
+import org.eclipse.xtext.GrammarUtil
+import org.eclipse.xtext.IGrammarAccess
+import org.eclipse.xtext.Keyword
+import org.eclipse.xtext.generator.parser.antlr.FirstSetComputer
+import org.eclipse.xtext.naming.QualifiedName
+import org.eclipse.xtext.resource.IEObjectDescription
+import rba.core.ExpressionType
+import rba.core.Operator
+import rba.core.RuleObject
+import rba.tool.editor.resource.RBAModelEObjectDescription
+import rba.tool.editor.scoping.IExpressionScope
+
+@Singleton
+class RBAModelMemberOperationRegistry {
+
+	private static Map<String, String> EMPTY_USERDATA = Collections.<String, String>emptyMap();
+	private static Pattern pattern = Pattern.compile("^ConfigurationParserRule_([A-Za-z]+)OperatorFor([A-Za-z]+)$");
+	private static String DESCRIPTION_KEY = "%s_%s";
+	private static String QUALIFIED_NAME = "%s()";
+
+	private final Map<String, Set<IEObjectDescription>> operations = newLinkedHashMap();
+
+	@Inject
+	public new(IGrammarAccess grammarAccess) {
+		registerOperations(grammarAccess);
+	}
+
+	def protected void registerOperations(IGrammarAccess grammarAccess) {
+		val multipleOperandParserRule = GrammarUtil.findRuleForName(grammarAccess.getGrammar(), "ConfigurationParserRule_OperatorWithMultipleOperand");
+		val multipleOperandConfiguration = FirstSetComputer.getFirstSet(multipleOperandParserRule.alternatives).filter(Keyword).toList;
+		val allConfigurations = GrammarUtil.allRules(grammarAccess.getGrammar()).filter(r|pattern.matcher(r.name).find);
+		for (configuration : allConfigurations) {
+			val Matcher matcher = pattern.matcher(configuration.name);
+			if (matcher.find) {
+				val descriptionKey = String.format(DESCRIPTION_KEY, matcher.group(1), matcher.group(2)).toUpperCase;
+				val descriptionEntries = newHashSet();
+				val keywords = FirstSetComputer.getFirstSet(configuration.alternatives).filter(Keyword);
+				for (keyword : keywords) {
+					descriptionEntries.add(
+						new RBAModelEObjectDescription(QualifiedName.create(String.format(QUALIFIED_NAME, keyword.value)), null, EMPTY_USERDATA,
+							#[if (multipleOperandConfiguration.contains(keyword)) -1 else 0, -50]));
+				}
+				operations.put(descriptionKey, descriptionEntries);
+			}
+		}
+	}
+
+	def public Set<IEObjectDescription> getOperations(EObject model, IExpressionScope.Anchor anchor) {
+		var ExpressionType expressionType = ExpressionType.BOOLEAN;
+		if (model instanceof RuleObject) {
+			expressionType = (model as RuleObject).expressionType;
+		} else if (model instanceof Operator) {
+			expressionType = (model as Operator).underlyingType;
+		}
+		return operations.get(String.format(DESCRIPTION_KEY, expressionType.getName(), anchor.name));
+	}
+
+}