WIP: add support for enum literals

Author: stelfrich

pom.xml

@@ -106,6 +106,7 @@
 		<dependency>
 			<groupId>org.scijava</groupId>
 			<artifactId>scijava-expression-parser</artifactId>
+			<version>3.0.2-SNAPSHOT</version>
 		</dependency>
 
 		<!-- Third-party dependencies -->

src/main/java/org/scijava/parse/DefaultParseService.java

@@ -31,14 +31,19 @@
 
 package org.scijava.parse;
 
+import java.util.ArrayList;
 import java.util.Collections;
 import java.util.LinkedHashMap;
 import java.util.List;
 import java.util.Map;
 
+import org.scijava.ItemPersistence;
+import org.scijava.ItemVisibility;
 import org.scijava.plugin.Plugin;
 import org.scijava.service.AbstractService;
 import org.scijava.service.Service;
+import org.scijava.sjep.ExpressionParser;
+import org.scijava.sjep.Operators;
 import org.scijava.sjep.Variable;
 import org.scijava.sjep.eval.DefaultEvaluator;
 import org.scijava.util.ObjectArray;
@@ -99,7 +104,11 @@ public boolean isList() {
 		}
 
 		private void parseItems(final String arg) {
-			final DefaultEvaluator e = new DefaultEvaluator();
+			List<Enum> enums = new ArrayList<Enum>();
+			enums.add(ItemVisibility.NORMAL);
+			enums.add(ItemPersistence.DEFAULT);
+
+			final DefaultEvaluator e = new DefaultEvaluator(new ExpressionParser(Operators.standardList(), enums));
 			final Object result = e.evaluate("(" + arg + ")");
 			if (result == null) {
 				throw new IllegalStateException("Error parsing string: '" + arg + "'");

src/test/java/org/scijava/command/run/CommandCodeRunnerTest.java

@@ -44,6 +44,7 @@
 import org.junit.Test;
 import org.scijava.Context;
 import org.scijava.ItemIO;
+import org.scijava.ItemPersistence;
 import org.scijava.command.Command;
 import org.scijava.command.CommandService;
 import org.scijava.plugin.Parameter;
@@ -123,7 +124,7 @@ public static class OpenSesame implements Command {
 		@Parameter(type = ItemIO.BOTH)
 		private StringBuilder buffer;
 
-		@Parameter(required = false, persist = false)
+		@Parameter(required = false, persist = ItemPersistence.NO)
 		private String magicWord;
 
 		@Override

src/test/java/org/scijava/script/ScriptInfoTest.java

@@ -142,7 +142,7 @@ public void testParameters() {
 			"% @LogService(required = false) log\n" + //
 			"% @int(label=\"Slider Value\", softMin=5, softMax=15, " + //
 			"stepSize=3, value=11, style=\"slider\") sliderValue\n" + //
-			"% @String(persist = false, family='Carnivora', " + //
+			"% @String(persist = \"NO\", family='Carnivora', " + //
 			"choices={'quick brown fox', 'lazy dog'}) animal\n" + //
 			"% @BOTH java.lang.StringBuilder buffer";
 
@@ -165,7 +165,7 @@ public void testParameters() {
 		final List<String> animalChoices = //
 			Arrays.asList("quick brown fox", "lazy dog");
 		assertItem("animal", String.class, null, ItemIO.INPUT, true,
-			ItemPersistence.DEFAULT, null, null, null, null, null, null, null, null,
+			ItemPersistence.NO, null, null, null, null, null, null, null, null,
 			animalChoices, animal);
 		assertEquals(animal.get("family"), "Carnivora"); // test custom attribute