update examples to latest syntax

examples/macros/PerformTransaction/PerformTransactionMacro.boo

@@ -23,14 +23,11 @@
 // SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
 // CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
 // OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
-// THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+// THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #endregion
 
 
-import Boo.Lang.Compiler
-import Boo.Lang.Compiler.Ast
-
-class PerformTransactionMacro(AbstractAstMacro):
+macro performTransaction(connection as Boo.Lang.Compiler.Ast.Expression): 
 """
 performTransaction connection:
 	connection.Execute(cmd1)
@@ -47,50 +44,17 @@ ensure:
 	transaction.End()
 """
 
-	override def Expand(macro as MacroStatement):
-
-		assert 1 == len(macro.Arguments)
-
-		connection = macro.Arguments[0]
-
-		block = Block()
-		block.Add(
-			BinaryExpression(
-				BinaryOperatorType.Assign,
-				ReferenceExpression("transaction"),
-				MethodInvocationExpression(
-					MemberReferenceExpression(
-						connection,
-						"BeginTransaction"))))
-
-		stmt = TryStatement()
-		stmt.ProtectedBlock = macro.Body
-		stmt.ProtectedBlock.Add(
-			MethodInvocationExpression(
-				MemberReferenceExpression(
-					ReferenceExpression("transaction"),
-					"Commit")))
-
-		handler = ExceptionHandler()
-		handler.Block.Add(
-			MethodInvocationExpression(
-				MemberReferenceExpression(
-					ReferenceExpression("transaction"),
-					"Revert")))
-		handler.Block.Add(
-			RaiseStatement())
-		stmt.ExceptionHandlers.Add(handler)
-
-		stmt.EnsureBlock = Block()
-		stmt.EnsureBlock.Add(
-			MethodInvocationExpression(
-				MemberReferenceExpression(
-					ReferenceExpression("transaction"),
-					"End")))
-
-		block.Add(stmt)			
-
-		return block
+	yield [| transaction = $connection.BeginTransaction() |]
+	yield [|
+		try:
+			$(performTransaction.Body)
+			transaction.Commit()
+		except:
+			transaction.Revert()
+			raise
+		ensure:
+			transaction.End()
+	|]
 
 
 

examples/macros/PerformTransaction/default.build

@@ -3,6 +3,7 @@
 
 	<target name="expand" depends="compile-macro">
 		<booc
+			target="library"
 			output="nothanks"
 			pipeline="boo">
 
@@ -25,7 +26,7 @@
 	</target>
 
 	<target name="init">
-		<loadtasks assembly="../../../bin/Boo.NAnt.Tasks.dll" />
+		<loadtasks assembly="../../../build/Boo.NAnt.Tasks.dll" />
 	</target>
 
 </project>

examples/misc/lines.boo

@@ -31,4 +31,4 @@ import System.IO
 fname, = argv
 using stream = File.OpenText(fname):
 	for index, line in enumerate(stream):
-		print("${index}: ${line}")
+		print "$index: $line"