From 8da93d3af2f5bf50a4ba178df193d0c2a8052325 Mon Sep 17 00:00:00 2001
From: Fernando Dodino <fernando.dodino@gmail.com>
Date: Fri, 9 Jul 2021 10:30:47 -0300
Subject: [PATCH] List.get using rounding half up (#2002)

* List.get using rounding half up

* Upgrading to last changes in wollok-language
---
 org.uqbar.project.wollok.lib/src/wollok/lang/WList.xtend    | 6 ++++--
 .../NumbersConfigurationTruncateStrategyTestCase.xtend      | 2 +-
 org.uqbar.project.wollok/src/wollok/lang/Exception.xtend    | 2 ++
 wollok-language                                             | 2 +-
 4 files changed, 8 insertions(+), 4 deletions(-)

diff --git a/org.uqbar.project.wollok.lib/src/wollok/lang/WList.xtend b/org.uqbar.project.wollok.lib/src/wollok/lang/WList.xtend
index fa404a2ee6..e806a49e9b 100644
--- a/org.uqbar.project.wollok.lib/src/wollok/lang/WList.xtend
+++ b/org.uqbar.project.wollok.lib/src/wollok/lang/WList.xtend
@@ -13,6 +13,7 @@ import org.uqbar.project.wollok.interpreter.nativeobj.JavaWrapper
 import static extension org.uqbar.project.wollok.interpreter.nativeobj.WollokJavaConversions.*
 import static extension org.uqbar.project.wollok.lib.WollokSDKExtensions.*
 import static extension org.uqbar.project.wollok.utils.WollokObjectUtils.*
+import java.math.RoundingMode
 
 /**
  * Native part of the wollok.lang.List class
@@ -27,8 +28,9 @@ class WList extends WCollection<List<WollokObject>> implements JavaWrapper<List<
 	
 	def get(BigDecimal index) {
 		index.checkNotNull("get")
-		val convertedIndex = index.coerceToPositiveInteger
-		wrapped.get(convertedIndex)
+		index.coerceToPositiveInteger
+		val convertedIndex = index.setScale(0, RoundingMode.HALF_UP)
+		wrapped.get(convertedIndex.intValue)
 	}
 
 	def sortBy(WollokObject predicate) {
diff --git a/org.uqbar.project.wollok.tests/src/org/uqbar/project/wollok/tests/interpreter/NumbersConfigurationTruncateStrategyTestCase.xtend b/org.uqbar.project.wollok.tests/src/org/uqbar/project/wollok/tests/interpreter/NumbersConfigurationTruncateStrategyTestCase.xtend
index a0c5311eba..b40619e5e6 100644
--- a/org.uqbar.project.wollok.tests/src/org/uqbar/project/wollok/tests/interpreter/NumbersConfigurationTruncateStrategyTestCase.xtend
+++ b/org.uqbar.project.wollok.tests/src/org/uqbar/project/wollok/tests/interpreter/NumbersConfigurationTruncateStrategyTestCase.xtend
@@ -58,7 +58,7 @@ class NumbersConfigurationTruncateStrategyTestCase extends AbstractWollokInterpr
 	@Test
 	def void listGet() {
 		'''
-		assert.equals("hola", ["saludo", "hola", "jua"].get(1.99999))
+		assert.equals("jua", ["saludo", "hola", "jua"].get(1.99999))
 		'''.test
 	}
 	
diff --git a/org.uqbar.project.wollok/src/wollok/lang/Exception.xtend b/org.uqbar.project.wollok/src/wollok/lang/Exception.xtend
index 321b659196..6ad51a4e16 100644
--- a/org.uqbar.project.wollok/src/wollok/lang/Exception.xtend
+++ b/org.uqbar.project.wollok/src/wollok/lang/Exception.xtend
@@ -32,6 +32,8 @@ class Exception {
 			.reverse
 	}
 	
+	def initialize() {}
+	
 	def getStackTrace() {
 		stackTrace.map[ 
 			exceptionObject.call("createStackTraceElement", contextDescription.javaToWollok, location.toString.javaToWollok)
diff --git a/wollok-language b/wollok-language
index 335dd2f866..a287071358 160000
--- a/wollok-language
+++ b/wollok-language
@@ -1 +1 @@
-Subproject commit 335dd2f8667014bed20a4396724dc0edbfa34c20
+Subproject commit a287071358ed17bc2efbdb320a29407e8fabba53