make OptionsParser#libgraalOptions final

Author: dougxc

compiler/src/jdk.graal.compiler/src/jdk/graal/compiler/libgraal/LibGraalFeature.java

@@ -188,20 +188,11 @@ public void duringSetup(DuringSetupAccess access) {
      * Collects all instances of the LibGraalLoader loaded {@link OptionKey} class reached by the
      * static analysis.
      */
-    private class OptionCollector implements Consumer<OptionKey<?>> {
+    private final class OptionCollector implements Consumer<OptionKey<?>> {
         private final Set<OptionKey<?>> options = Collections.newSetFromMap(new ConcurrentHashMap<>());
 
-        /**
-         * Libgraal compiler options info.
-         */
-        private final OptionsParser.LibGraalOptionsInfo compilerOptionsInfo;
-
         private boolean sealed;
 
-        OptionCollector() {
-            compilerOptionsInfo = OptionsParser.setLibgraalOptions(OptionsParser.LibGraalOptionsInfo.create());
-        }
-
         @Override
         public void accept(OptionKey<?> option) {
             if (sealed) {
@@ -221,11 +212,11 @@ void afterAnalysis(AfterAnalysisAccess access) {
                     GraalError.guarantee(access.isReachable(descriptor.getClass()), "%s", descriptor.getClass());
 
                     String name = option.getName();
-                    compilerOptionsInfo.descriptors().put(name, descriptor);
+                    OptionsParser.libgraalOptions.descriptors().put(name, descriptor);
 
                     String module = modules.get(descriptor.getDeclaringClass().getName());
                     if (module.contains("enterprise")) {
-                        compilerOptionsInfo.enterpriseOptions().add(name);
+                        OptionsParser.libgraalOptions.enterpriseOptions().add(name);
                     }
                 }
             }

compiler/src/jdk.graal.compiler/src/jdk/graal/compiler/options/OptionsParser.java

@@ -38,7 +38,7 @@
 import java.util.Set;
 import java.util.regex.Pattern;
 
-import jdk.graal.compiler.debug.GraalError;
+import jdk.graal.nativeimage.LibGraalLoader;
 import org.graalvm.collections.EconomicMap;
 import org.graalvm.collections.EconomicSet;
 import org.graalvm.collections.MapCursor;
@@ -68,7 +68,7 @@ public static LibGraalOptionsInfo create() {
      * Compiler options info available in libgraal. This field is only non-null when
      * {@link OptionsParser} is loaded by a {@link jdk.graal.nativeimage.LibGraalLoader}.
      */
-    private static LibGraalOptionsInfo libgraalOptions;
+    public static final LibGraalOptionsInfo libgraalOptions = OptionsParser.class.getClassLoader() instanceof LibGraalLoader ? LibGraalOptionsInfo.create() : null;
 
     /**
      * Gets an iterable of available {@link OptionDescriptors}.
@@ -97,14 +97,6 @@ public static Iterable<OptionDescriptors> getOptionsLoader() {
         }
     }
 
-    @ExcludeFromJacocoGeneratedReport("only called when building libgraal")
-    public static LibGraalOptionsInfo setLibgraalOptions(LibGraalOptionsInfo info) {
-        GraalError.guarantee(inImageBuildtimeCode(), "Can only set libgraal compiler options when building libgraal");
-        GraalError.guarantee(libgraalOptions == null, "Libgraal compiler options must be set exactly once");
-        OptionsParser.libgraalOptions = info;
-        return info;
-    }
-
     /**
      * Parses a map representing assignments of values to options.
      *