Add more modifier checks to MethodDeclaration node

Author: inxilpro

src/Node/MethodDeclaration.php

@@ -40,18 +40,38 @@ class MethodDeclaration extends Node implements FunctionLike {
         // FunctionBody
         'compoundStatementOrSemicolon'
     ];
+    
+    public function hasModifier(int $targetModifier) : bool {
+	    if ($this->modifiers === null) {
+		    return false;
+	    }
+	    foreach ($this->modifiers as $modifier) {
+		    if ($modifier->kind === $targetModifier) {
+			    return true;
+		    }
+	    }
+	    return false;
+    }
 
     public function isStatic() : bool {
-        if ($this->modifiers === null) {
-            return false;
-        }
-        foreach ($this->modifiers as $modifier) {
-            if ($modifier->kind === TokenKind::StaticKeyword) {
-                return true;
-            }
-        }
-        return false;
+        return $this->hasModifier(TokenKind::StaticKeyword);
     }
+	
+	public function isPublic() : bool {
+		return $this->hasModifier(TokenKind::PublicKeyword);
+	}
+	
+	public function isProtected() : bool {
+		return $this->hasModifier(TokenKind::ProtectedKeyword);
+	}
+	
+	public function isPrivate() : bool {
+		return $this->hasModifier(TokenKind::PrivateKeyword);
+	}
+	
+	public function isAbstract() : bool {
+		return $this->hasModifier(TokenKind::AbstractKeyword);
+	}
 
     public function getName() {
         return $this->name->getText($this->getFileContents());