JS inline: added FunctionInlineMutator

js/js.inliner/src/org/jetbrains/k2js/inline/FunctionInlineMutator.java

@@ -0,0 +1,52 @@
+/*
+ * Copyright 2008 Google Inc.
+ *
+ * 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.k2js.inline;
+
+import com.google.dart.compiler.backend.js.ast.*;
+
+import java.util.*;
+
+class FunctionInlineMutator {
+    private static final String RESULT_LABEL = "result_inlined";
+
+    private final JsInvocation call;
+    private final JsScope callerScope;
+    private final JsFunction invokedFunction;
+    private final List<JsStatement> statements = new ArrayList<JsStatement>();
+    private final IdentityHashMap<JsName, JsNameRef> renameMap = new IdentityHashMap<JsName, JsNameRef>();
+
+    public static InlineableResult getInlineableCallReplacement(
+            JsInvocation call,
+            JsScope callerScope,
+            JsFunction invokedFunction
+    ) {
+        return (new FunctionInlineMutator(call, callerScope, invokedFunction)).process();
+    }
+
+    private FunctionInlineMutator(JsInvocation call, JsScope callerScope, JsFunction invokedFunction) {
+        this.call = call;
+        this.callerScope = callerScope;
+        this.invokedFunction = invokedFunction;
+    }
+
+    private InlineableResult process() {
+        JsBlock inlinedBody = new JsBlock(statements);
+        JsNameRef result = callerScope.declareName(RESULT_LABEL).makeRef();
+        statements.addAll(invokedFunction.getBody().getStatements());
+        return new InlineableResult(inlinedBody, result);
+    }
+}