#14: Fixed issue with cast methods when being invocation targets

src/main/java/org/jsweet/transpiler/typescript/Java2TypeScriptAdapter.java

@@ -246,37 +246,38 @@ public class Java2TypeScriptAdapter extends AbstractPrinterAdapter {
 			return true;
 		}
 		if (matchesMethod(targetClassName, targetMethodName, UTIL_CLASSNAME, "array")) {
-			getPrinter().print(invocation.args.head);
+			printCastMethodInvocation(invocation);
 			return true;
 		}
 		if (matchesMethod(targetClassName, targetMethodName, UTIL_CLASSNAME, "function")) {
-			getPrinter().printArgList(invocation.args);
+			printCastMethodInvocation(invocation);
 			return true;
 		}
 		if (matchesMethod(targetClassName, targetMethodName, UTIL_CLASSNAME, "string")) {
-			getPrinter().printArgList(invocation.args);
+			printCastMethodInvocation(invocation);
 			return true;
 		}
 		if (matchesMethod(targetClassName, targetMethodName, UTIL_CLASSNAME, "bool")) {
-			getPrinter().printArgList(invocation.args);
+			printCastMethodInvocation(invocation);
 			return true;
 		}
 		if (matchesMethod(targetClassName, targetMethodName, UTIL_CLASSNAME, "number")) {
-			getPrinter().printArgList(invocation.args);
+			printCastMethodInvocation(invocation);
 			return true;
 		}
 		if (matchesMethod(targetClassName, targetMethodName, UTIL_CLASSNAME, "integer")) {
-			getPrinter().printArgList(invocation.args);
+			printCastMethodInvocation(invocation);
 			return true;
 		}
 		if (matchesMethod(targetClassName, targetMethodName, UTIL_CLASSNAME, "object")) {
-			getPrinter().printArgList(invocation.args);
+			printCastMethodInvocation(invocation);
 			return true;
 		}
 		if (matchesMethod(targetClassName, targetMethodName, UTIL_CLASSNAME, "union")) {
 			getPrinter().typeChecker.checkUnionTypeAssignment(getPrinter().getContext().types, getPrinter().getParent(), invocation);
-			getPrinter().print("<any>");
+			getPrinter().print("(<any>");
-			getPrinter().printArgList(invocation.args);
+			printCastMethodInvocation(invocation);
+			getPrinter().print(")");
 			return true;
 		}
 
@@ -418,6 +419,16 @@ public class Java2TypeScriptAdapter extends AbstractPrinterAdapter {
 		return super.substituteMethodInvocation(invocation);
 	}
 
+	private void printCastMethodInvocation(JCMethodInvocation invocation) {
+		if(getPrinter().getParent() instanceof JCMethodInvocation) {
+			getPrinter().print("(");
+		}
+		getPrinter().print(invocation.args.head);
+		if(getPrinter().getParent() instanceof JCMethodInvocation) {
+			getPrinter().print(")");
+		}
+	}
+	
 	@Override
 	public boolean substituteFieldAccess(JCFieldAccess fieldAccess) {
 		String name = fieldAccess.name.toString();

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

@@ -29,6 +29,7 @@ import org.junit.Test;
 import source.syntax.AnnotationQualifiedNames;
 import source.syntax.FinalVariables;
 import source.syntax.FinalVariablesRuntime;
+import source.syntax.GlobalsCastMethod;
 import source.syntax.GlobalsInvocation;
 import source.syntax.IndexedAccessInStaticScope;
 import source.syntax.Keywords;
@@ -144,4 +145,12 @@ public class SyntaxTests extends AbstractTest {
 		} , getSourceFile(ValidIndexedAccesses.class));
 	}
 	
+	@Test
+	public void testGlobalCastMethod() {
+		transpile((logHandler) -> {
+			logHandler.assertReportedProblems();
+		} , getSourceFile(GlobalsCastMethod.class));
+	}
+
+	
 }

src/test/java/source/syntax/GlobalsCastMethod.java

@@ -0,0 +1,35 @@
+/* 
+ * JSweet - http://www.jsweet.org
+ * Copyright (C) 2015 CINCHEO SAS <renaud.pawlak@cincheo.fr>
+ * 
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package source.syntax;
+
+import static jsweet.util.Globals.number;
+
+public class GlobalsCastMethod {
+
+	public static void main(String[] args) {
+
+		double n = 5;
+
+		// this invocation must preserve parentheses on target
+		number(n / 2).toFixed(0);
+
+		// this invocation does not
+		number(n / 2);
+
+	}
+
+}