Named arguments should be clickable #1240

src/main/java/fr/adrienbrault/idea/symfony2plugin/config/yaml/YamlGoToDeclarationHandler.java

@@ -11,6 +11,7 @@
 import com.intellij.psi.tree.IElementType;
 import com.jetbrains.php.PhpIndex;
 import com.jetbrains.php.lang.psi.elements.Method;
+import com.jetbrains.php.lang.psi.elements.Parameter;
 import com.jetbrains.php.lang.psi.elements.PhpClass;
 import fr.adrienbrault.idea.symfony2plugin.Symfony2ProjectComponent;
 import fr.adrienbrault.idea.symfony2plugin.config.EventDispatcherSubscriberUtil;
@@ -88,6 +89,14 @@ public PsiElement[] getGotoDeclarationTargets(PsiElement psiElement, int i, Edit
             }
         }
 
+        if (elementType == YAMLTokenTypes.SCALAR_KEY) {
+            String psiText = PsiElementUtils.getText(psiElement);
+
+            if(psiText.startsWith("$")) {
+                targets.addAll(namedArgumentGoto(psiElement)) ;
+            }
+        }
+
         // yaml Plugin BC: "!php/const:" is a tag
         if(elementType == YAMLTokenTypes.TAG) {
             String psiText = PsiElementUtils.getText(psiElement);
@@ -167,6 +176,17 @@ public PsiElement[] getGotoDeclarationTargets(PsiElement psiElement, int i, Edit
         return targets.toArray(new PsiElement[targets.size()]);
     }
 
+    private Collection<? extends PsiElement> namedArgumentGoto(PsiElement psiElement) {
+        Collection<PsiElement> psiElements = new HashSet<>();
+
+        Parameter yamlNamedArgument = ServiceContainerUtil.getYamlNamedArgument(psiElement, new ContainerCollectionResolver.LazyServiceCollector(psiElement.getProject()));
+        if (yamlNamedArgument != null) {
+            psiElements.add(yamlNamedArgument);
+        }
+
+        return psiElements;
+    }
+
     private boolean hasNewConst(@NotNull PsiElement psiElement) {
         PsiElement prevSibling = psiElement.getPrevSibling();
         while (prevSibling != null) {

src/main/java/fr/adrienbrault/idea/symfony2plugin/dic/container/util/ServiceContainerUtil.java

@@ -12,6 +12,7 @@
 import com.jetbrains.php.PhpIndex;
 import com.jetbrains.php.lang.psi.elements.Field;
 import com.jetbrains.php.lang.psi.elements.Method;
+import com.jetbrains.php.lang.psi.elements.Parameter;
 import com.jetbrains.php.lang.psi.elements.PhpClass;
 import fr.adrienbrault.idea.symfony2plugin.config.xml.XmlHelper;
 import fr.adrienbrault.idea.symfony2plugin.dic.attribute.value.AttributeValueInterface;
@@ -366,6 +367,42 @@ public static ServiceTypeHint getYamlConstructorTypeHint(@NotNull YAMLScalar yam
         return null;
     }
 
+    /**
+     * arguments: ['$foobar': '@foo']
+     */
+    @Nullable
+    public static Parameter getYamlNamedArgument(@NotNull PsiElement psiElement, @NotNull ContainerCollectionResolver.LazyServiceCollector lazyServiceCollector) {
+        PsiElement context = psiElement.getContext();
+        if(context instanceof YAMLKeyValue) {
+            // arguments: ['$foobar': '@foo']
+
+            String parameterName = ((YAMLKeyValue) context).getKeyText();
+            if(parameterName.startsWith("$") && parameterName.length() > 1) {
+                PsiElement yamlMapping = context.getParent();
+                if(yamlMapping instanceof YAMLMapping) {
+                    PsiElement yamlKeyValue = yamlMapping.getParent();
+                    if(yamlKeyValue instanceof YAMLKeyValue) {
+                        String keyText = ((YAMLKeyValue) yamlKeyValue).getKeyText();
+                        if(keyText.equals("arguments")) {
+                            YAMLMapping parentMapping = ((YAMLKeyValue) yamlKeyValue).getParentMapping();
+                            if(parentMapping != null) {
+                                String serviceId = getServiceClassFromServiceMapping(parentMapping);
+                                if(StringUtils.isNotBlank(serviceId)) {
+                                    PhpClass serviceClass = ServiceUtil.getResolvedClassDefinition(psiElement.getProject(), serviceId, lazyServiceCollector);
+                                    if(serviceClass != null) {
+                                        return PhpElementsUtil.getConstructorParameterArgumentByName(serviceClass, StringUtils.stripStart(parameterName, "$"));
+                                    }
+                                }
+                            }
+                        }
+                    }
+                }
+            }
+        }
+
+        return null;
+    }
+
     /**
      * Symfony 3.3: "class" is optional; use service name for its it
      *

src/main/java/fr/adrienbrault/idea/symfony2plugin/util/PhpElementsUtil.java

@@ -1299,6 +1299,21 @@ public static Collection<String> getTernaryExpressionConditionStrings(@NotNull T
         return types;
     }
 
+    /**
+     * Find argument by name in constructor parameter: __construct($foobar)
+     */
+    @Nullable
+    public static Parameter getConstructorParameterArgumentByName(@NotNull PhpClass phpClass, @NotNull String argumentName) {
+        Method constructor = phpClass.getConstructor();
+        if(constructor == null) {
+            return null;
+        }
+
+        return Arrays.stream(constructor.getParameters()).filter(
+                parameter -> argumentName.equals(parameter.getName())
+        ).findFirst().orElse(null);
+    }
+
     /**
      * Find argument by name in constructor parameter: __construct($foobar)
      */

src/test/java/fr/adrienbrault/idea/symfony2plugin/tests/config/yaml/YamlGoToDeclarationHandlerTest.java

@@ -4,6 +4,7 @@
 import com.intellij.patterns.PsiElementPattern;
 import com.jetbrains.php.lang.PhpFileType;
 import com.jetbrains.php.lang.psi.elements.Method;
+import com.jetbrains.php.lang.psi.elements.Parameter;
 import com.jetbrains.php.lang.psi.elements.PhpClass;
 import com.jetbrains.php.lang.psi.elements.StringLiteralExpression;
 import fr.adrienbrault.idea.symfony2plugin.tests.SymfonyLightCodeInsightFixtureTestCase;
@@ -226,6 +227,16 @@ public void testThatNavigationForControllerInvokeMethodIsAvailable() {
         );
     }
 
+    public void testNamedArgumentsNavigationForService() {
+        assertNavigationMatch("services.yml", "" +
+                        "services:\n" +
+                        "    Foo\\Bar:\n" +
+                        "       arguments:\n" +
+                        "           $<caret>i: ~\n",
+                PlatformPatterns.psiElement(Parameter.class)
+        );
+    }
+
     @NotNull
     private PsiElementPattern.Capture<PhpClass> getClassPattern() {
         return PlatformPatterns.psiElement(PhpClass.class);