IDEA-77745 Please add a "Print parameters to system out" live template

java/java-impl/src/com/intellij/codeInsight/template/macro/GroovyScriptMacro.java

@@ -20,6 +20,8 @@ import com.intellij.codeInsight.lookup.LookupElement;
 import com.intellij.codeInsight.lookup.LookupElementBuilder;
 import com.intellij.codeInsight.template.*;
 import com.intellij.openapi.util.text.StringUtil;
+import com.intellij.util.Function;
+import com.intellij.util.containers.ContainerUtil;
 import groovy.lang.Binding;
 import groovy.lang.GroovyShell;
 import groovy.lang.Script;
@@ -60,7 +62,18 @@ public class GroovyScriptMacro extends Macro {
 
       for(int i = 1; i < params.length; ++i) {
         Result paramResult = params[i].calculateResult(context);
-        binding.setVariable("_"+i, paramResult != null ? paramResult.toString():null);
+        Object value = null;
+        if (paramResult instanceof ListResult) {
+          value = ContainerUtil.map2List(((ListResult)paramResult).getComponents(), new Function<Result, String>() {
+            @Override
+            public String fun(Result result) {
+              return result.toString();
+            }
+          });
+        } else if (paramResult != null) {
+          value = paramResult.toString();
+        }
+        binding.setVariable("_"+i, value);
       }
 
       binding.setVariable("_editor", context.getEditor());

java/java-impl/src/com/intellij/codeInsight/template/macro/MethodParametersMacro.java

@@ -0,0 +1,69 @@
+/*
+ * Copyright 2000-2011 JetBrains s.r.o.
+ *
+ * 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 com.intellij.codeInsight.template.macro;
+
+import com.intellij.codeInsight.CodeInsightBundle;
+import com.intellij.codeInsight.template.*;
+import com.intellij.openapi.project.Project;
+import com.intellij.psi.*;
+import org.jetbrains.annotations.NotNull;
+
+import java.util.ArrayList;
+import java.util.List;
+
+public class MethodParametersMacro extends Macro {
+
+  public String getName() {
+    return "methodParameters";
+  }
+
+  public String getPresentableName() {
+    return CodeInsightBundle.message("macro.method.parameters");
+  }
+
+  @NotNull
+  public String getDefaultValue() {
+    return "a";
+  }
+
+  public Result calculateResult(@NotNull Expression[] params, final ExpressionContext context) {
+    Project project = context.getProject();
+    int templateStartOffset = context.getTemplateStartOffset();
+    final int offset = templateStartOffset > 0 ? context.getTemplateStartOffset() - 1 : context.getTemplateStartOffset();
+
+    PsiDocumentManager.getInstance(project).commitAllDocuments();
+
+    PsiFile file = PsiDocumentManager.getInstance(project).getPsiFile(context.getEditor().getDocument());
+    PsiElement place = file.findElementAt(offset);
+    while(place != null){
+      if (place instanceof PsiMethod){
+        List<Result> result = new ArrayList<Result>();
+        for (PsiParameter parameter : ((PsiMethod)place).getParameterList().getParameters()) {
+          result.add(new TextResult(parameter.getName()));
+        }
+        return new ListResult(result);
+      }
+      place = place.getParent();
+    }
+    return null;
+  }
+
+  @Override
+  public boolean isAcceptableInContext(TemplateContextType context) {
+    return context instanceof JavaCodeContextType;
+  }
+
+}