refactor: classExists

Author: BFergerson

marker/js-marker/src/main/kotlin/spp/jetbrains/marker/js/JavascriptLanguageProvider.kt

@@ -45,14 +45,7 @@ import spp.jetbrains.safeLaunch
  */
 class JavascriptLanguageProvider : LanguageProvider {
 
-    override fun canSetup(): Boolean {
-        return try {
-            Class.forName("com.intellij.lang.javascript.psi.impl.JSElementImpl")
-            true
-        } catch (ignore: ClassNotFoundException) {
-            false
-        }
-    }
+    override fun canSetup() = classExists("com.intellij.lang.javascript.psi.impl.JSElementImpl")
 
     override fun setup(project: Project) {
         SourceFileMarker.SUPPORTED_FILE_TYPES.add(JSFile::class.java)

marker/jvm-marker/src/main/kotlin/spp/jetbrains/marker/jvm/JVMLanguageProvider.kt

@@ -48,14 +48,7 @@ import spp.jetbrains.safeLaunch
  */
 class JVMLanguageProvider : LanguageProvider {
 
-    override fun canSetup(): Boolean {
-        return try {
-            Class.forName("com.intellij.psi.PsiJavaFile")
-            true
-        } catch (ignore: ClassNotFoundException) {
-            false
-        }
-    }
+    override fun canSetup() = classExists("com.intellij.psi.PsiJavaFile")
 
     override fun setup(project: Project) {
         SUPPORTED_FILE_TYPES.add(GroovyFile::class.java)

marker/py-marker/src/main/kotlin/spp/jetbrains/marker/py/PythonLanguageProvider.kt

@@ -44,14 +44,7 @@ import spp.jetbrains.safeLaunch
  */
 class PythonLanguageProvider : LanguageProvider {
 
-    override fun canSetup(): Boolean {
-        return try {
-            Class.forName("com.jetbrains.python.psi.PyElement")
-            true
-        } catch (ignore: ClassNotFoundException) {
-            false
-        }
-    }
+    override fun canSetup() = classExists("com.jetbrains.python.psi.PyElement")
 
     override fun setup(project: Project) {
         SourceFileMarker.SUPPORTED_FILE_TYPES.add(PyFile::class.java)

marker/src/main/kotlin/spp/jetbrains/marker/LanguageProvider.kt

@@ -34,4 +34,13 @@ interface LanguageProvider {
         }
         return ultimateProvider!!
     }
+
+    fun classExists(className: String): Boolean {
+        return try {
+            Class.forName(className)
+            true
+        } catch (ignore: ClassNotFoundException) {
+            false
+        }
+    }
 }