translator: fix support if without else, fix gitignore for gradle

.gitignore

@@ -10,7 +10,7 @@ workspace.xml
 
 .gradle
 build
-translator/idea_run.sh
+translator/.gradle/2.9/taskArtifacts
 
 # Ignore Gradle GUI config
 gradle-app.setting

translator/idea_run.sh

@@ -1,3 +0,0 @@
-#!/bin/bash
-
-java -jar build/libs/ast-kotlin-1.0-SNAPSHOT.jar $1 > $2

translator/run_tests.sh

@@ -37,7 +37,7 @@ for i in $( ls "$DIRECTORY/input"); do
 	    clang-3.6 -S -emit-llvm "$DIRECTORY/c/$TEST.c" -o $DIRECTORY/linked/$TEST"_c.ll" -Wno-implicit-function-declaration
 	fi
 
-	./idea_run.sh $DIRECTORY/kotlin/$TEST.kt $DIRECTORY/linked/$TEST.ll
+	java -jar build/libs/ast-kotlin-1.0-SNAPSHOT.jar  $DIRECTORY/kotlin/$TEST.kt > $DIRECTORY/linked/$TEST.ll
 	llvm-link-3.6 $DIRECTORY/linked/* > $DIRECTORY/linked/run.ll
 	lli-3.6 $DIRECTORY/linked/run.ll
 	

translator/src/main/kotlin/org/kotlinnative/translator/BlockCodegen.kt

@@ -176,7 +176,7 @@ abstract class BlockCodegen(open val state: TranslationState, open val variableM
     private fun evaluateReferenceExpression(expr: KtReferenceExpression, scopeDepth: Int, classScope: ClassCodegen? = null): LLVMSingleValue? = when (expr) {
         is KtArrayAccessExpression -> evaluateArrayAccessExpression(expr, scopeDepth + 1)
         else -> if ((expr is KtNameReferenceExpression) && (classScope != null)) evaluatenameReferenceExpression(expr, scopeDepth + 1, classScope)
-                else variableManager.getLLVMvalue(expr.firstChild.text)
+        else variableManager.getLLVMvalue(expr.firstChild.text)
     }
 
     private fun evaluateCallExpression(expr: KtCallExpression, scopeDepth: Int, classScope: ClassCodegen? = null): LLVMSingleValue? {
@@ -514,12 +514,12 @@ abstract class BlockCodegen(open val state: TranslationState, open val variableM
         val condition = getBrackets.getNextSiblingIgnoringWhitespaceAndComments() ?: return null
         getBrackets = condition.getNextSiblingIgnoringWhitespaceAndComments() ?: return null
         val thenExpression = getBrackets.getNextSiblingIgnoringWhitespaceAndComments() ?: return null
-        val elseKeyword = thenExpression.getNextSiblingIgnoringWhitespaceAndComments() ?: return null
-        val elseExpression = elseKeyword.getNextSiblingIgnoringWhitespaceAndComments() ?: return null
+        val elseKeyword = thenExpression.getNextSiblingIgnoringWhitespaceAndComments()
+        val elseExpression = elseKeyword?.getNextSiblingIgnoringWhitespaceAndComments()
 
         return when (ifExpression) {
-            null -> executeIfBlock(condition.firstChild as KtBinaryExpression, thenExpression.firstChild, elseExpression.firstChild, scopeDepth + 1)
-            else -> executeIfExpression(condition.firstChild as KtBinaryExpression, thenExpression.firstChild, elseExpression.firstChild, ifExpression, scopeDepth + 1)
+            null -> executeIfBlock(condition.firstChild as KtBinaryExpression, thenExpression.firstChild, elseExpression?.firstChild, scopeDepth + 1)
+            else -> executeIfExpression(condition.firstChild as KtBinaryExpression, thenExpression.firstChild, elseExpression!!.firstChild, ifExpression, scopeDepth + 1)
         }
     }
 
@@ -552,10 +552,12 @@ abstract class BlockCodegen(open val state: TranslationState, open val variableM
         val elseLabel = codeBuilder.getNewLabel(prefix = "if")
         val endLabel = codeBuilder.getNewLabel(prefix = "if")
 
-        codeBuilder.addCondition(conditionResult, thenLabel, elseLabel)
+        codeBuilder.addCondition(conditionResult, thenLabel, if (elseExpression != null) elseLabel else endLabel)
 
         evaluateCodeBlock(thenExpression, thenLabel, endLabel, scopeDepth + 1)
-        evaluateCodeBlock(elseExpression, elseLabel, endLabel, scopeDepth + 1)
+        if (elseExpression != null) {
+            evaluateCodeBlock(elseExpression, elseLabel, endLabel, scopeDepth + 1)
+        }
 
         codeBuilder.markWithLabel(endLabel)
 

translator/src/test/kotlin/tests/input/if_2.txt

@@ -0,0 +1,2 @@
+if_without_else_2(5) == 1256
+if_without_else_2(55) == 1320

translator/src/test/kotlin/tests/kotlin/if_2.kt

@@ -0,0 +1,7 @@
+fun if_without_else_2(x: Int): Int {
+    var res = 1256
+    if (x > 10) {
+        res = res + 64
+    }
+    return res
+}