Perf: Add boundaries to get rid of truffle warnings/compilation failures

Author: raph-amiard

lkql_jit/language/src/main/java/com/adacore/lkql_jit/nodes/expressions/LKQLToBoolean.java

@@ -11,6 +11,7 @@
 import com.adacore.lkql_jit.runtime.values.LKQLUnit;
 import com.adacore.lkql_jit.runtime.values.lists.BaseLKQLList;
 import com.adacore.lkql_jit.utils.LKQLTypesHelper;
+import com.oracle.truffle.api.CompilerDirectives;
 import com.oracle.truffle.api.dsl.Fallback;
 import com.oracle.truffle.api.dsl.Specialization;
 import com.oracle.truffle.api.nodes.Node;
@@ -49,6 +50,11 @@ protected boolean onLKQLUnit(LKQLUnit unit) {
 
     @Specialization
     protected boolean onNode(LangkitSupport.NodeInterface node) {
+        return checkNode(node);
+    }
+
+    @CompilerDirectives.TruffleBoundary
+    protected boolean checkNode(LangkitSupport.NodeInterface node) {
         return !node.isNone();
     }
 

lkql_jit/language/src/main/java/com/adacore/lkql_jit/runtime/values/LKQLProperty.java

@@ -37,6 +37,7 @@ public class LKQLProperty extends BasicLKQLValue {
     // ----- Constructors -----
 
     /** Create a new LKQL property from its name and associated node. */
+    @CompilerDirectives.TruffleBoundary
     public LKQLProperty(final String name, final LangkitSupport.NodeInterface node) {
         this.name = name;
         this.description = node.getFieldDescription(name);

lkql_jit/language/src/main/java/com/adacore/lkql_jit/runtime/values/lists/BaseLKQLList.java

@@ -41,6 +41,7 @@ protected BaseLKQLList() {}
      *
      * @throws InvalidIndexException If the provided index is not in the list bounds.
      */
+    @CompilerDirectives.TruffleBoundary
     public abstract Object get(long i) throws InvalidIndexException;
 
     /** Get the iterator for the list. */
@@ -147,6 +148,7 @@ public boolean isBoolean() {
 
     /** Get the boolean representation of the list. */
     @ExportMessage
+    @CompilerDirectives.TruffleBoundary
     public boolean asBoolean() {
         try {
             this.get(0);

lkql_jit/language/src/main/java/com/adacore/lkql_jit/utils/LKQLTypesHelper.java

@@ -156,6 +156,7 @@ public static String fromJava(Object obj) {
      * @param defaultValue The default value to return.
      * @return The string representing the type in the LKQL language.
      */
+    @CompilerDirectives.TruffleBoundary
     public static String fromJava(Object obj, String defaultValue) {
         if (LKQLTypeSystemGen.isUnit(obj)) {
             return LKQL_UNIT;