Arguments/named arguments

idea/src/org/jetbrains/jet/JetNodeTypes.java

@@ -36,7 +36,6 @@ public interface JetNodeTypes {
     // TODO: Not sure if we really need separate PSI nodes for the class parameters?
     JetNodeType PRIMARY_CONSTRUCTOR_PARAMETERS_LIST = new JetNodeType("PRIMARY_CONSTRUCTOR_PARAMETERS_LIST", JetParameterList.class);
     JetNodeType PRIMARY_CONSTRUCTOR_PARAMETER       = new JetNodeType("PRIMARY_CONSTRUCTOR_PARAMETER", JetParameter.class);
-    JetNodeType NAMED_ARGUMENT                      = new JetNodeType("NAMED_ARGUMENT");
     JetNodeType CLASS_BODY                          = new JetNodeType("CLASS_BODY", JetClassBody.class);
     JetNodeType IMPORT_DIRECTIVE                    = new JetNodeType("IMPORT_DIRECTIVE", JetImportDirective.class);
     JetNodeType IMPORTED                            = new JetNodeType("IMPORTED");
@@ -48,6 +47,7 @@ public interface JetNodeTypes {
     JetNodeType TYPE_ARGUMENT_LIST                  = new JetNodeType("TYPE_ARGUMENT_LIST", JetTypeArgumentList.class);
     JetNodeType VALUE_ARGUMENT_LIST                 = new JetNodeType("VALUE_ARGUMENT_LIST", JetArgumentList.class);
     JetNodeType VALUE_ARGUMENT                      = new JetNodeType("VALUE_ARGUMENT", JetArgument.class);
+    JetNodeType NAMED_ARGUMENT                      = new JetNodeType("NAMED_ARGUMENT");
     JetNodeType TYPE_REFERENCE                      = new JetNodeType("TYPE_REFERENCE", JetTypeReference.class);
     JetNodeType LABELED_TUPLE_ENTRY                 = new JetNodeType("LABELED_TUPLE_ENTRY");
     JetNodeType TUPLE_TYPE                          = new JetNodeType("TUPLE_TYPE");

idea/src/org/jetbrains/jet/lang/psi/JetArgument.java

@@ -2,6 +2,7 @@ package org.jetbrains.jet.lang.psi;
 
 import com.intellij.lang.ASTNode;
 import org.jetbrains.annotations.NotNull;
+import org.jetbrains.annotations.Nullable;
 
 /**
  * @author max
@@ -14,4 +15,9 @@ public class JetArgument extends JetElement {
     public void accept(JetVisitor visitor) {
         visitor.visitArgument(this);
     }
+
+    @Nullable
+    public JetExpression getArgumentExpression() {
+        return findChildByClass(JetExpression.class);
+    }
 }

idea/src/org/jetbrains/jet/lang/psi/JetNamedArgumentImpl.java

@@ -0,0 +1,22 @@
+package org.jetbrains.jet.lang.psi;
+
+import com.intellij.lang.ASTNode;
+import org.jetbrains.annotations.NotNull;
+import org.jetbrains.jet.lexer.JetTokens;
+
+/**
+ * @author max
+ */
+public class JetNamedArgumentImpl extends JetArgument {
+    public JetNamedArgumentImpl(@NotNull ASTNode node) {
+        super(node);
+    }
+
+    public String getParameterName() {
+        return getParameterNameNode().getText();
+    }
+
+    private ASTNode getParameterNameNode() {
+        return getNode().findChildByType(JetTokens.IDENTIFIER);
+    }
+}