@Replace now uses a better-looking mustache-like syntax

core-lib/es5/src/main/java/jsweet/lang/Replace.java

@@ -30,6 +30,24 @@ import java.lang.annotation.Target;
  * The annotation's value contains TypeScript which is generated as is by the
  * JSweet transpiler. The code will be checked by the TypeScript transpiler.
  * 
+ * <p>
+ * The replacing code can contain variables substituted using a mustache-like
+ * convention ({{variableName}}). Note that no space is allowed between the
+ * variable name and the mustaches. Here is the list of supported variables:
+ * 
+ * <ul>
+ * <li>{{className}}: the current class.</li>
+ * <li>{{methodName}}: the current method name.</li>
+ * <li>{{body}}: the body of the current method. A typical use of this variable
+ * is to wrap the original behavior in a lambda. For instance:
+ * <code>[before code] let _result = () => { {{body}} }(); [after code] return result;</code>
+ * </li>
+ * <li>{{baseIndent}}: the indentation of the replaced method. Can be used to
+ * generate well-formatted code.</li>
+ * <li>{{indent}}: substituted with an indentation. Can be used to generate
+ * well-formatted code.</li>
+ * </ul>
+ * 
  * @author Renaud Pawlak
  */
 @Retention(RetentionPolicy.RUNTIME)
@@ -37,10 +55,10 @@ import java.lang.annotation.Target;
 @Documented
 public @interface Replace {
 
-	/**
+    /**
-	 * The code that will be generated by the transpiler in place of the
+     * The code that will be generated by the transpiler in place of the
-	 * annotated method body.
+     * annotated method body.
-	 */
+     */
-	java.lang.String value();
+    java.lang.String value();
 
 }

core-lib/es6/src/main/java/jsweet/lang/Replace.java

@@ -30,6 +30,24 @@ import java.lang.annotation.Target;
  * The annotation's value contains TypeScript which is generated as is by the
  * JSweet transpiler. The code will be checked by the TypeScript transpiler.
  * 
+ * <p>
+ * The replacing code can contain variables substituted using a mustache-like
+ * convention ({{variableName}}). Note that no space is allowed between the
+ * variable name and the mustaches. Here is the list of supported variables:
+ * 
+ * <ul>
+ * <li>{{className}}: the current class.</li>
+ * <li>{{methodName}}: the current method name.</li>
+ * <li>{{body}}: the body of the current method. A typical use of this variable
+ * is to wrap the original behavior in a lambda. For instance:
+ * <code>[before code] let _result = () => { {{body}} }(); [after code] return result;</code>
+ * </li>
+ * <li>{{baseIndent}}: the indentation of the replaced method. Can be used to
+ * generate well-formatted code.</li>
+ * <li>{{indent}}: substituted with an indentation. Can be used to generate
+ * well-formatted code.</li>
+ * </ul>
+ * 
  * @author Renaud Pawlak
  */
 @Retention(RetentionPolicy.RUNTIME)
@@ -37,10 +55,10 @@ import java.lang.annotation.Target;
 @Documented
 public @interface Replace {
 
-	/**
+    /**
-	 * The code that will be generated by the transpiler in place of the
+     * The code that will be generated by the transpiler in place of the
-	 * annotated method body.
+     * annotated method body.
-	 */
+     */
-	java.lang.String value();
+    java.lang.String value();
 
 }

transpiler/src/main/java/org/jsweet/transpiler/Java2TypeScriptTranslator.java

@@ -160,11 +160,11 @@ public class Java2TypeScriptTranslator extends AbstractTreePrinter {
 	public static final String ENUM_WRAPPER_CLASS_NAME = "_$name";
 	public static final String ENUM_WRAPPER_CLASS_ORDINAL = "_$ordinal";
 	public static final String VAR_DECL_KEYWORD = "let";
-	public static final String BODY_MARKER = "#BODY#";
+	public static final String BODY_MARKER = "{{body}}";
-	public static final String BASE_INDENT_MARKER = "#BASEINDENT#";
+	public static final String BASE_INDENT_MARKER = "{{baseIndent}}";
-	public static final String INDENT_MARKER = "#INDENT#";
+	public static final String INDENT_MARKER = "{{indent}}";
-	public static final String METHOD_NAME_MARKER = "#METHODNAME#";
+	public static final String METHOD_NAME_MARKER = "{{methodName}}";
-	public static final String CLASS_NAME_MARKER = "#CLASSNAME#";
+	public static final String CLASS_NAME_MARKER = "{{className}}";
 	public static final String GENERATOR_PREFIX = "__generator_";
 
 	protected static Logger logger = Logger.getLogger(Java2TypeScriptTranslator.class);

transpiler/src/test/java/org/jsweet/test/transpiler/StructuralTests.java

@@ -331,7 +331,7 @@ public class StructuralTests extends AbstractTest {
 						context.addAnnotation("@Replace('return (this.i + 2)')",
 								"source.structural.ReplaceAnnotation.m2()");
 						context.addAnnotation(
-								"@Replace('let result = (() => { #BODY# })(); return (result + '#METHODNAME#'.length);')",
+								"@Replace('let result = (() => { {{body}} })(); return (result + '{{methodName}}'.length);')",
 								"source.structural.ReplaceAnnotation.m4()");
 					}
 				};