Implemented a first version of a gotoRelatedProvider

Author: halirutan

resources/META-INF/plugin.xml

@@ -168,10 +168,12 @@
     <psi.referenceContributor language="Mathematica" implementation="de.halirutan.mathematica.parsing.psi.MathematicaReferenceContributor"/>
     <renamePsiElementProcessor implementation="de.halirutan.mathematica.refactoring.MathematicaPsiRenameProcessor"/>
 
-
     <!--<applicationService serviceInterface="de.halirutan.mathematica.MathematicaSettings" serviceImplementation="de.halirutan.mathematica.MathematicaSettings"/>-->
     <!--<applicationConfigurable groupId="language" displayName="Mathematica" id="preferences.Mathematica"-->
                              <!--instance="de.halirutan.mathematica.MathematicaSettingsConfigurable"/>-->
+    <gotoRelatedProvider
+        implementation="de.halirutan.mathematica.codeinsight.navigation.MathematicaGotoRelatedProvider"/>
+
   </extensions>
 
   <actions>

src/de/halirutan/mathematica/codeinsight/navigation/GotoSymbolItem.java

@@ -0,0 +1,44 @@
+/*
+ * Copyright (c) 2016 Patrick Scheibe
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+package de.halirutan.mathematica.codeinsight.navigation;
+
+import com.intellij.navigation.GotoRelatedItem;
+import com.intellij.psi.PsiElement;
+import org.jetbrains.annotations.NotNull;
+import org.jetbrains.annotations.Nullable;
+
+/**
+ * @author patrick (28.12.16).
+ */
+public class GotoSymbolItem extends GotoRelatedItem {
+  private final String myDescription;
+  GotoSymbolItem(@NotNull PsiElement element, final String description) {
+    super(element);
+    myDescription = description;
+  }
+
+  @Nullable
+  @Override
+  public String getCustomName() {
+    return myDescription;
+  }
+}

src/de/halirutan/mathematica/codeinsight/navigation/MathematicaGotoRelatedProvider.java

@@ -0,0 +1,73 @@
+/*
+ * Copyright (c) 2016 Patrick Scheibe
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+package de.halirutan.mathematica.codeinsight.navigation;
+
+import com.intellij.navigation.GotoRelatedItem;
+import com.intellij.navigation.GotoRelatedProvider;
+import com.intellij.psi.PsiElement;
+import com.intellij.psi.PsiReference;
+import com.intellij.psi.impl.source.tree.LeafPsiElement;
+import de.halirutan.mathematica.parsing.MathematicaElementTypes;
+import de.halirutan.mathematica.parsing.psi.api.Symbol;
+import de.halirutan.mathematica.parsing.psi.util.GlobalDefinitionCollector;
+import de.halirutan.mathematica.parsing.psi.util.GlobalDefinitionCollector.AssignmentProperty;
+import de.halirutan.mathematica.parsing.psi.util.LocalizationConstruct.ConstructType;
+import org.jetbrains.annotations.NotNull;
+
+import java.util.ArrayList;
+import java.util.HashSet;
+import java.util.List;
+import java.util.Map;
+
+/**
+ * @author patrick (28.12.16).
+ */
+public class MathematicaGotoRelatedProvider extends GotoRelatedProvider {
+
+  @NotNull
+  @Override
+  public List<? extends GotoRelatedItem> getItems(@NotNull PsiElement psiElement) {
+    ArrayList<GotoRelatedItem> declarations = new ArrayList<>();
+    if (psiElement instanceof LeafPsiElement && ((LeafPsiElement) psiElement).getElementType().equals(MathematicaElementTypes.IDENTIFIER)) {
+      psiElement = psiElement.getParent();
+    }
+    if (psiElement instanceof Symbol) {
+      PsiReference ref = psiElement.getReference();
+      if (ref != null) {
+        PsiElement resolve = ref.resolve();
+        if (resolve != null) {
+          if (resolve instanceof Symbol && ((Symbol) resolve).getLocalizationConstruct().equals(ConstructType.NULL)) {
+            GlobalDefinitionCollector collector = new GlobalDefinitionCollector(psiElement.getContainingFile());
+            Map<String, HashSet<AssignmentProperty>> assignments = collector.getAssignments();
+            for (AssignmentProperty property : assignments.get(((Symbol) resolve).getSymbolName())) {
+              String text = property.myLhsOfAssignment.getText();
+              GotoRelatedItem item = new GotoSymbolItem(property.myAssignmentSymbol, text.substring(0, Math.min(text.length(),50)));
+              declarations.add(item);
+            }
+          }
+        }
+      }
+    }
+    return declarations;
+  }
+
+}

src/de/halirutan/mathematica/parsing/psi/util/GlobalDefinitionCollector.java

@@ -44,10 +44,10 @@
  */
 public class GlobalDefinitionCollector {
 
-  private Map<String, HashSet<AssignmentProperty>> myAssignments;
+  private final Map<String, HashSet<AssignmentProperty>> myAssignments;
 
   public GlobalDefinitionCollector(PsiFile startElement) {
-    myAssignments = new HashMap<String, HashSet<AssignmentProperty>>();
+    myAssignments = new HashMap<>();
     final CollectorVisitor myVisitor = new CollectorVisitor();
     startElement.accept(myVisitor);
   }
@@ -64,7 +64,7 @@ private void addAssignment(Symbol symbol, PsiElement lhs, SymbolAssignmentType t
     if (myAssignments.containsKey(key)) {
       assignment = myAssignments.get(key);
     } else {
-      assignment = new HashSet<AssignmentProperty>(1);
+      assignment = new HashSet<>(1);
       myAssignments.put(key, assignment);
     }
     assignment.add(new AssignmentProperty(symbol, lhs, type));
@@ -92,7 +92,8 @@ public void visitSet(final Set set) {
       for (Symbol symbol : unboundSymbols) {
         PsiElement context = lhs;
         if (visitor.getAssignmentType() == ATTRIBUTES_ASSIGNMENT || visitor.getAssignmentType() == OPTIONS_ASSIGNMENT) {
-          context = set.getLastChild();
+//          context = set.getLastChild();
+          context = set.getFirstChild();
         }
         addAssignment(symbol, context, visitor.getAssignmentType());
       }