Fix read thread access of Twig lookup elements rendering

Author: Haehnchen

src/main/java/fr/adrienbrault/idea/symfony2plugin/templating/PhpTwigMethodLookupElement.java

@@ -8,40 +8,45 @@
 import fr.adrienbrault.idea.symfony2plugin.templating.util.TwigTypeResolveUtil;
 import fr.adrienbrault.idea.symfony2plugin.util.completion.TwigTypeInsertHandler;
 import org.jetbrains.annotations.NotNull;
+import org.jetbrains.annotations.Nullable;
 
 /**
  * @author Daniel Espendiller <daniel@espendiller.net>
  */
 public class PhpTwigMethodLookupElement extends PhpLookupElement {
+    @Nullable
+    private String methodName;
+
     PhpTwigMethodLookupElement(@NotNull PhpNamedElement namedElement) {
         super(namedElement);
+
+        if (namedElement instanceof Method method) {
+            this.methodName = method.getName();
+        }
     }
 
     @Override
-    public void handleInsert(InsertionContext context) {
+    public void handleInsert(@NotNull InsertionContext context) {
         TwigTypeInsertHandler.getInstance().handleInsert(context, this);
     }
 
     @Override
-    public void renderElement(LookupElementPresentation presentation) {
+    public void renderElement(@NotNull LookupElementPresentation presentation) {
         super.renderElement(presentation);
 
-        PhpNamedElement phpNamedElement = this.getNamedElement();
-
         // reset method to show full name again, which was stripped inside getLookupString
-        if(phpNamedElement instanceof Method && TwigTypeResolveUtil.isPropertyShortcutMethod((Method) phpNamedElement)) {
-            presentation.setItemText(phpNamedElement.getName());
+        if (methodName != null && TwigTypeResolveUtil.isPropertyShortcutMethod(methodName)) {
+            presentation.setItemText(methodName);
         }
-
     }
 
     @NotNull
     public String getLookupString() {
         String lookupString = super.getLookupString();
 
         // remove property shortcuts eg getter / issers
-        if(this.getNamedElement() instanceof Method && TwigTypeResolveUtil.isPropertyShortcutMethod((Method) this.getNamedElement())) {
-            lookupString = TwigTypeResolveUtil.getPropertyShortcutMethodName((Method) this.getNamedElement());
+        if (methodName != null && TwigTypeResolveUtil.isPropertyShortcutMethod(methodName)) {
+            lookupString = TwigTypeResolveUtil.getPropertyShortcutMethodName(methodName);
         }
 
         return lookupString;

src/main/java/fr/adrienbrault/idea/symfony2plugin/templating/util/TwigTypeResolveUtil.java

@@ -658,9 +658,12 @@ public static String getTypeDisplayName(Project project, Set<String> types) {
     }
 
     public static boolean isPropertyShortcutMethod(Method method) {
+        return isPropertyShortcutMethod(method.getName());
+    }
 
-        for(String shortcut: PROPERTY_SHORTCUTS) {
-            if(method.getName().startsWith(shortcut) && method.getName().length() > shortcut.length()) {
+    public static boolean isPropertyShortcutMethod(String methodName) {
+        for (String shortcut: PROPERTY_SHORTCUTS) {
+            if (methodName.startsWith(shortcut) && methodName.length() > shortcut.length()) {
                 return true;
             }
         }
@@ -669,9 +672,8 @@ public static boolean isPropertyShortcutMethod(Method method) {
     }
 
     public static boolean isPropertyShortcutMethodEqual(String methodName, String variableName) {
-
-        for(String shortcut: PROPERTY_SHORTCUTS) {
-            if(methodName.equalsIgnoreCase(shortcut + variableName)) {
+        for (String shortcut: PROPERTY_SHORTCUTS) {
+            if (methodName.equalsIgnoreCase(shortcut + variableName)) {
                 return true;
             }
         }
@@ -688,11 +690,13 @@ public static boolean isPropertyShortcutMethodEqual(String methodName, String va
      */
     @NotNull
     public static String getPropertyShortcutMethodName(@NotNull Method method) {
-        String methodName = method.getName();
+        return getPropertyShortcutMethodName(method.getName());
+    }
 
-        for(String shortcut: PROPERTY_SHORTCUTS) {
+    public static String getPropertyShortcutMethodName(@NotNull String methodName) {
+        for (String shortcut: PROPERTY_SHORTCUTS) {
             // strip possible property shortcut and make it lcfirst
-            if(method.getName().startsWith(shortcut) && method.getName().length() > shortcut.length()) {
+            if (methodName.startsWith(shortcut) && methodName.length() > shortcut.length()) {
                 methodName = methodName.substring(shortcut.length());
                 return Character.toLowerCase(methodName.charAt(0)) + methodName.substring(1);
             }