Printer class moved from tests to util

2012-08-07 16:44:14 +04:00
parent 0588d51700
commit a98bc541f5
6 changed files with 6 additions and 2 deletions
@@ -0,0 +1,60 @@
+/*
+ * Copyright 2010-2012 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 org.jetbrains.jet.utils;
+
+import org.jetbrains.annotations.NotNull;
+
+/**
+* @author abreslav
+*/
+public class Printer {
+    private static final String INDENTATION_UNIT = "    ";
+    private String indent = "";
+    private final StringBuilder out;
+
+    public Printer(@NotNull StringBuilder out) {
+        this.out = out;
+    }
+
+    public void println(Object... objects) {
+        print(objects);
+        out.append("\n");
+    }
+
+    public void print(Object... objects) {
+        out.append(indent);
+        printWithNoIndent(objects);
+    }
+
+    public void printWithNoIndent(Object... objects) {
+        for (Object object : objects) {
+            out.append(object);
+        }
+    }
+
+    public void pushIndent() {
+        indent += INDENTATION_UNIT;
+    }
+
+    public void popIndent() {
+        if (indent.length() < INDENTATION_UNIT.length()) {
+            throw new IllegalStateException("No indentation to pop");
+        }
+
+        indent = indent.substring(INDENTATION_UNIT.length());
+    }
+}