GROOVY-7940: @lazy not generating "is" property accessor for booleans (closes groovy#420)

Author: jwagenleitner

src/main/org/codehaus/groovy/transform/LazyASTTransformation.java

@@ -44,6 +44,7 @@
 import static org.codehaus.groovy.ast.tools.GeneralUtils.assignS;
 import static org.codehaus.groovy.ast.tools.GeneralUtils.assignX;
 import static org.codehaus.groovy.ast.tools.GeneralUtils.block;
+import static org.codehaus.groovy.ast.tools.GeneralUtils.callThisX;
 import static org.codehaus.groovy.ast.tools.GeneralUtils.callX;
 import static org.codehaus.groovy.ast.tools.GeneralUtils.classX;
 import static org.codehaus.groovy.ast.tools.GeneralUtils.ctorX;
@@ -156,8 +157,12 @@ private static void addNonThreadSafeBody(BlockStatement body, FieldNode fieldNod
     private static void addMethod(FieldNode fieldNode, BlockStatement body, ClassNode type) {
         int visibility = ACC_PUBLIC;
         if (fieldNode.isStatic()) visibility |= ACC_STATIC;
-        final String name = "get" + MetaClassHelper.capitalize(fieldNode.getName().substring(1));
-        fieldNode.getDeclaringClass().addMethod(name, visibility, type, Parameter.EMPTY_ARRAY, ClassNode.EMPTY_ARRAY, body);
+        String propName = MetaClassHelper.capitalize(fieldNode.getName().substring(1));
+        fieldNode.getDeclaringClass().addMethod("get" + propName, visibility, type, Parameter.EMPTY_ARRAY, ClassNode.EMPTY_ARRAY, body);
+        if (ClassHelper.boolean_TYPE.equals(type)) {
+            fieldNode.getDeclaringClass().addMethod("is" + propName, visibility, type,
+                    Parameter.EMPTY_ARRAY, ClassNode.EMPTY_ARRAY, stmt(callThisX("get" + propName)));
+        }
     }
 
     private static void createSoft(FieldNode fieldNode, Expression initExpr) {

src/test/org/codehaus/groovy/transform/LazyTransformTest.groovy

@@ -202,4 +202,22 @@ class LazyTransformTest extends GroovyShellTestCase {
         """)
         assertEquals([10,20,30,40,50,60], res)
     }
+
+    // GROOVY-7940
+    void testGeneratesIsAndGetAccessorsForBooleanPrimitives() {
+        assertScript '''
+            class Super {
+                boolean aBoolean = true
+            }
+
+            class Testing extends Super {
+                @Lazy
+                boolean aBoolean = {-> false }()
+            }
+
+            assert !new Testing().isaBoolean()
+            assert !new Testing().getaBoolean()
+            assert !new Testing().aBoolean
+        '''
+    }
 }