fix warnings

build.gradle.kts

@@ -7,7 +7,6 @@ plugins {
     `maven-publish`
     signing
     kotlin("multiplatform") version "1.5.32"
-    kotlin("native.cocoapods") version "1.5.32"
 }
 
 repositories {

src/commonMain/kotlin/dev/gitlive/difflib/UnifiedDiffUtils.kt

@@ -190,7 +190,7 @@ object UnifiedDiffUtils {
                         )
                         ret.addAll(curBlock)
                         deltas.clear()
-                        deltas.add(nextDelta!!)
+                        deltas.add(nextDelta)
                     }
                     delta = nextDelta
                 }

src/commonMain/kotlin/dev/gitlive/difflib/patch/AbstractDelta.kt

@@ -52,17 +52,17 @@ abstract class AbstractDelta<T>(val type: DeltaType, val source: Chunk<T>, val t
         return Triple(this.source, this.target, this.type).hashCode()
     }
 
-    override fun equals(obj: Any?): Boolean {
-        if (this === obj) {
+    override fun equals(other: Any?): Boolean {
+        if (this === other) {
             return true
         }
-        if (obj == null) {
+        if (other == null) {
             return false
         }
-        if (this::class != obj::class) {
+        if (this::class != other::class) {
             return false
         }
-        val other = obj as AbstractDelta<*>
+        val other = other as AbstractDelta<*>
         if (source != other.source) {
             return false
         }

src/commonMain/kotlin/dev/gitlive/difflib/patch/Chunk.kt

@@ -120,22 +120,18 @@ class Chunk<T> {
         return Triple(lines, position, size()).hashCode()
     }
 
-    override fun equals(obj: Any?): Boolean {
-        if (this === obj) {
+    override fun equals(other: Any?): Boolean {
+        if (this === other) {
             return true
         }
-        if (obj == null) {
+        if (other == null) {
             return false
         }
-        if (this::class != obj::class) {
+        if (this::class != other::class) {
             return false
         }
-        val other = obj as Chunk<*>?
-        if (lines == null) {
-            if (other!!.lines != null) {
-                return false
-            }
-        } else if (lines != other!!.lines) {
+        val other = other as Chunk<*>?
+        if (lines != other!!.lines) {
             return false
         }
         return position == other.position

src/commonMain/kotlin/dev/gitlive/difflib/text/DiffRow.kt

@@ -46,36 +46,24 @@ class DiffRow(
         return Triple(newLine, oldLine, tag).hashCode()
     }
 
-    override fun equals(obj: Any?): Boolean {
-        if (this === obj) {
+    override fun equals(other: Any?): Boolean {
+        if (this === other) {
             return true
         }
-        if (obj == null) {
+        if (other == null) {
             return false
         }
-        if (this::class != obj::class) {
+        if (this::class != other::class) {
             return false
         }
-        val other = obj as DiffRow
-        if (newLine == null) {
-            if (other.newLine != null) {
-                return false
-            }
-        } else if (newLine != other.newLine) {
+        val other = other as DiffRow
+        if (newLine != other.newLine) {
             return false
         }
-        if (oldLine == null) {
-            if (other.oldLine != null) {
-                return false
-            }
-        } else if (oldLine != other.oldLine) {
+        if (oldLine != other.oldLine) {
             return false
         }
-        if (tag == null) {
-            if (other.tag != null) {
-                return false
-            }
-        } else if (tag != other.tag) {
+        if (tag != other.tag) {
             return false
         }
         return true

src/commonMain/kotlin/dev/gitlive/difflib/text/StringUtils.kt

@@ -45,7 +45,6 @@ internal object StringUtils {
      * @param columnWidth the given column
      * @return the wrapped text
      */
-    @OptIn(ExperimentalStdlibApi::class)
     @kotlin.jvm.JvmStatic
     fun wrapText(line: String, columnWidth: Int): String {
         require(columnWidth >= 0) { "columnWidth may not be less 0" }

src/commonMain/kotlin/dev/gitlive/difflib/unifieddiff/UnifiedDiff.kt

@@ -36,7 +36,7 @@ class UnifiedDiff {
     }
 
     fun setTailTxt(tailTxt: String?) {
-        tail = tailTxt.takeUnless { it.isNullOrEmpty() }
+        tail = tailTxt
     }
 
 //    @Throws(PatchFailedException::class)

src/commonMain/kotlin/dev/gitlive/difflib/unifieddiff/UnifiedDiffReader.kt

@@ -182,16 +182,18 @@ class UnifiedDiffReader internal constructor(lineReader: LineReader) {
             }
         }
 
-        var tailTxt = ""
         line = nextLine()
-        while (line != null) {
-            if (tailTxt.isNotEmpty()) {
-                tailTxt += "\n"
+        if(line != null) {
+            var tailTxt = ""
+            while (line != null) {
+                if (tailTxt.isNotEmpty()) {
+                    tailTxt += "\n"
+                }
+                tailTxt += line
+                line = nextLine()
             }
-            tailTxt += line
-            line = nextLine()
+            data.setTailTxt(tailTxt)
         }
-        data.setTailTxt(tailTxt)
         return data
     }