Add inspection to replace not-null assertion with elvis return

#KT-30381 Fixed
2019-03-12 12:05:00 +09:00
parent 1c0c01725b
commit dffcfdc02f
24 changed files with 282 additions and 0 deletions
@@ -3355,6 +3355,15 @@
                     language="kotlin"
    />

+    <localInspection implementationClass="org.jetbrains.kotlin.idea.inspections.ReplaceNotNullAssertionWithElvisReturnInspection"
+                     displayName="Replace '!!' with '?: return'"
+                     groupPath="Kotlin"
+                     groupName="Style issues"
+                     enabledByDefault="false"
+                     level="WEAK WARNING"
+                     language="kotlin"
+    />
+
    <referenceImporter implementation="org.jetbrains.kotlin.idea.quickfix.KotlinReferenceImporter"/>

    <fileType.fileViewProviderFactory filetype="KJSM" implementationClass="com.intellij.psi.ClassFileViewProviderFactory"/>
@@ -0,0 +1,13 @@
+<html>
+<body>
+This inspection reports not-null assertion (<b>!!</b>) calls that can be replaced with elvis and return (<b>?: return</b>). For example:
+<br /><br />
+<pre>
+val number: Int? = 42
+fun foo() {
+    val a = number!! // Replace '!!' with '?: return'
+    println(1 + a)
+}
+</pre>
+</body>
+</html>