add exception fixes

Author: OlesiaSub

src/main/kotlin/org/objectionary/ddr/graph/CondAttributesSetter.kt

@@ -60,13 +60,15 @@ class CondAttributesSetter(
             }
             val igCond = IgNodeCondition(cond)
             traverseParents(node.parentNode, igCond.freeVars)
-            if (name(node) != "@") {
-                graph.igNodes.add(IGraphCondNode(node, packageName(node), igCond, fstOption, sndOption))
-                val parent = graph.igNodes.find { it.body == node.parentNode }
-                parent?.attributes?.add(IGraphCondAttr(name(node)!!, 0, node, igCond, fstOption, sndOption))
-            } else {
-                val parent = graph.igNodes.find { it.body == node.parentNode }
-                parent?.attributes?.add(IGraphCondAttr(name(node)!!, 0, node, igCond, fstOption, sndOption))
+            name(node)?.let {name ->
+                if (name != "@") {
+                    graph.igNodes.add(IGraphCondNode(node, packageName(node), igCond, fstOption, sndOption))
+                    val parent = graph.igNodes.find { it.body == node.parentNode }
+                    parent?.attributes?.add(IGraphCondAttr(name, 0, node, igCond, fstOption, sndOption))
+                } else {
+                    val parent = graph.igNodes.find { it.body == node.parentNode }
+                    parent?.attributes?.add(IGraphCondAttr(name, 0, node, igCond, fstOption, sndOption))
+                }
             }
         }
     }

src/main/kotlin/org/objectionary/ddr/graph/InnerPropagator.kt

@@ -64,7 +64,6 @@ class InnerPropagator(
     @Suppress("MAGIC_NUMBER")
     private fun processDecorators() {
         val repetitions = 5
-
         // @todo #44:30min this solution is naive, optimize it (see commented out lines)
         //  while (decorators.containsValue(false)) {
         for (i in 0..repetitions) {

src/main/kotlin/org/objectionary/ddr/transform/Resolver.kt

@@ -145,7 +145,7 @@ abstract class Resolver(
             }
         }
         if (base(node) == "^") {
-            return node.parentNode.parentNode
+            return node.parentNode?.parentNode
         }
         if (base(node) == "$") {
             return node.parentNode

src/test/resources/integration/in/basic_cycle_ddr/basic_cycle.xmir

@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<program ms="1"
+<program ms="2"
           name="transformer"
-          time="2022-11-03T11:34:11.279528900Z"
+          time="2022-11-05T13:49:55.333288200Z"
           version="0.28.10">
    <listing>+alias util.utils
 

src/test/resources/resolver/xmirs/alias_chain/app.xmir

@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<program ms="2"
+<program ms="3"
           name="transformer"
-          time="2022-11-03T11:34:11.297481300Z"
+          time="2022-11-05T13:49:55.350243Z"
           version="0.28.10">
    <listing>+package util
 

src/test/resources/resolver/xmirs/alias_chain/util/utils.xmir

@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<program ms="5"
+<program ms="2"
           name="transformer"
-          time="2022-11-03T11:34:12.116281200Z"
+          time="2022-11-05T13:49:56.102232600Z"
           version="0.28.10">
    <listing>+alias org.ut.util
 

src/test/resources/resolver/xmirs/basic/app.xmir

@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<program ms="0"
+<program ms="1"
           name="transformer"
-          time="2022-11-03T11:34:12.129246600Z"
+          time="2022-11-05T13:49:56.115199400Z"
           version="0.28.10">
    <listing>+package org.ut
 

src/test/resources/resolver/xmirs/basic/util_dir/util.xmir

@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <program ms="7"
           name="transformer"
-          time="2022-11-03T11:34:09.583734400Z"
+          time="2022-11-05T13:49:53.912090400Z"
           version="0.28.10">
    <listing>+alias stdout org.eolang.io.stdout
 

src/test/resources/resolver/xmirs/condition/condition.xmir

@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<program ms="2"
+<program ms="5"
           name="transformer"
-          time="2022-11-03T11:34:11.679459400Z"
+          time="2022-11-05T13:49:55.711278600Z"
           version="0.28.10">
    <listing>+alias stdout org.eolang.io.stdout