IO.print without new line (#10858)

CHANGELOG.md

@@ -30,13 +30,15 @@
 - [Mixed Decimal/Float arithmetic now throws an error; mixed comparisons now
   attach warnings.][10725]
 - [Support for creating Atoms in expressions.][10820]
+- [IO.print without new line][10858]
 
 [10614]: https://github.com/enso-org/enso/pull/10614
 [10660]: https://github.com/enso-org/enso/pull/10660
 [10761]: https://github.com/enso-org/enso/pull/10761
 [10733]: https://github.com/enso-org/enso/pull/10733
 [10725]: https://github.com/enso-org/enso/pull/10725
 [10820]: https://github.com/enso-org/enso/pull/10820
+[10858]: https://github.com/enso-org/enso/pull/10858
 
 #### Enso Language & Runtime
 

distribution/lib/Standard/Base/0.0.0-dev/src/IO.enso

@@ -1,6 +1,7 @@
 import project.Any.Any
 import project.Data.Text.Text
 import project.Nothing.Nothing
+import project.Internal.IO_Helpers
 
 ## PRIVATE
    ADVANCED
@@ -30,7 +31,23 @@ print_err message = @Builtin_Method "IO.print_err"
 
          IO.println "Oh yes!"
 println : Any -> Nothing
-println message = @Builtin_Method "IO.println"
+println message = IO_Helpers.println message '\n'
+
+## PRIVATE
+   ADVANCED
+   Prints the provided message to standard output without adding a new line at the end.
+
+   Arguments:
+   - message: The message to print. It will have to_text called on it to
+     generate a textual representation that is then printed.
+
+   > Example
+     Print the message "Oh yes!" to standard output using `print` and then `println`.
+
+         IO.print "Oh "
+         IO.println "yes!"
+print : Any -> Nothing
+print message = IO_Helpers.println message ''
 
 ## PRIVATE
    ADVANCED

distribution/lib/Standard/Base/0.0.0-dev/src/Internal/Extra_Imports.enso

@@ -4,10 +4,6 @@ private
 # building native image version of Enso with Standard
 # libraries included in
 
-# needed for Standard.Test.Test_Reporter
-# tracked as https://github.com/enso-org/enso/issues/10028
-polyglot java import java.io.PrintStream
-
 # needed by Util_Spec
 polyglot java import org.enso.base.text.CaseFoldedString as JCaseFoldedString
 polyglot java import org.enso.base.text.CaseFoldedString.Grapheme

distribution/lib/Standard/Base/0.0.0-dev/src/Internal/IO_Helpers.enso

@@ -0,0 +1,3 @@
+private
+
+println message ends_with = @Builtin_Method "IO.println"

distribution/lib/Standard/Test/0.0.0-dev/src/Test_Reporter.enso

@@ -194,17 +194,17 @@ print_progress current_progress total_count status_text =
     truncated_line = if line.length <= progress_width then line else
         line.take (progress_width - 3) + '...'
 
-    Java_System.out.print '\r'
-    Java_System.out.print (' ' * progress_width)
-    Java_System.out.print '\r'
-    Java_System.out.print truncated_line
-    Java_System.out.print '\r'
+    IO.print '\r'
+    IO.print (' ' * progress_width)
+    IO.print '\r'
+    IO.print truncated_line
+    IO.print '\r'
 
 ## PRIVATE
 clear_progress =
-    Java_System.out.print '\r'
-    Java_System.out.print (' ' * progress_width)
-    Java_System.out.print '\r'
+    IO.print '\r'
+    IO.print (' ' * progress_width)
+    IO.print '\r'
 
 ## PRIVATE
 type Ignore_Progress_Reporter

engine/runtime-integration-tests/src/test/java/org/enso/interpreter/test/instrument/IncrementalUpdatesTest.java

@@ -3,6 +3,7 @@
 import static org.junit.Assert.assertEquals;
 import static org.junit.Assert.assertNotNull;
 import static org.junit.Assert.assertTrue;
+import static org.junit.Assert.fail;
 
 import com.oracle.truffle.api.nodes.Node;
 import java.io.File;
@@ -279,7 +280,7 @@ private static String extractPositions(
     Assert.assertEquals(List.newBuilder().addOne(originalOutput), context.consumeOut());
 
     var allNodesAfterException =
-        nodeCountingInstrument.assertNewNodes("Execution creates some nodes", 20, 35);
+        nodeCountingInstrument.assertNewNodes("Execution creates some nodes", 30, 40);
 
     // push foo call
     context.send(
@@ -354,7 +355,14 @@ private <T extends Node> T findLiteralNode(
       Class<T> type, Map<Class, java.util.List<Node>> nodes) {
     var intNodes = nodes.get(type);
     assertNotNull("Found LiteralNode in " + nodes, intNodes);
-    assertEquals("Expecting one node: " + intNodes, 1, intNodes.size());
+    assertEquals("Expecting two nodes: " + intNodes, 2, intNodes.size());
+    if (intNodes.get(1) instanceof LiteralNode ln) {
+      var text = ln.executeGeneric(null);
+      assertEquals("The second node is ends_with from IO.println", "\n", text.toString());
+    } else {
+      fail("Expecting literal two nodes: " + intNodes);
+    }
+
     return type.cast(intNodes.get(0));
   }