1 files changed, 109 insertions, 0 deletions
diff --git a/asm-util/src/test/java/org/objectweb/asm/util/MethodNodeBuilder.java b/asm-util/src/test/java/org/objectweb/asm/util/MethodNodeBuilder.java
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+++ b/asm-util/src/test/java/org/objectweb/asm/util/MethodNodeBuilder.java
@@ -0,0 +1,109 @@
+// ASM: a very sm14all and fast Java bytecode manipulation framework
+// Copyright (c) 2000-2011 INRIA, France Telecom
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions
+// are met:
+// 1. Redistributions of source code must retain the above copyright
+//    notice, this list of conditions and the following disclaimer.
+// 2. Redistributions in binary form must reproduce the above copyright
+//    notice, this list of conditions and the following disclaimer in the
+//    documentation and/or other materials provided with the distribution.
+// 3. Neither the name of the copyright holders nor the names of its
+//    contributors may be used to endorse or promote products derived from
+//    this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+// ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+// LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+// SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+// CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
+// THE POSSIBILITY OF SUCH DAMAGE.
+package org.objectweb.asm.util;
+
+import java.util.Arrays;
+import org.objectweb.asm.Label;
+import org.objectweb.asm.Opcodes;
+import org.objectweb.asm.tree.FrameNode;
+import org.objectweb.asm.tree.MethodNode;
+
+/**
+ * A builder of {@link MethodNode}, to construct test cases for unit tests.
+ *
+ * @author Eric Bruneton
+ */
+final class MethodNodeBuilder {
+
+  private final MethodNode methodNode;
+
+  MethodNodeBuilder() {
+    this(/* maxStack = */ 10, /* maxLocals = */ 10);
+  }
+
+  MethodNodeBuilder(final int maxStack, final int maxLocals) {
+    methodNode = new MethodNode(Opcodes.ACC_PUBLIC, "m", "()V", null, null);
+    methodNode.maxStack = maxStack;
+    methodNode.maxLocals = maxLocals;
+    methodNode.visitCode();
+  }
+
+  MethodNodeBuilder nop() {
+    methodNode.visitInsn(Opcodes.NOP);
+    return this;
+  }
+
+  MethodNodeBuilder iconst_0() {
+    methodNode.visitInsn(Opcodes.ICONST_0);
+    return this;
+  }
+
+  MethodNodeBuilder vreturn() {
+    methodNode.visitInsn(Opcodes.RETURN);
+    return this;
+  }
+
+  MethodNodeBuilder label(final Label label) {
+    methodNode.visitLabel(label);
+    return this;
+  }
+
+  MethodNodeBuilder go(final Label label) {
+    methodNode.visitJumpInsn(Opcodes.GOTO, label);
+    return this;
+  }
+
+  MethodNodeBuilder jsr(final Label label) {
+    methodNode.visitJumpInsn(Opcodes.JSR, label);
+    return this;
+  }
+
+  MethodNodeBuilder ret(final int varIndex) {
+    methodNode.visitVarInsn(Opcodes.RET, varIndex);
+    return this;
+  }
+
+  MethodNodeBuilder ifne(final Label label) {
+    methodNode.visitJumpInsn(Opcodes.IFNE, label);
+    return this;
+  }
+
+  MethodNodeBuilder frame(final int type, final Object[] local, final Object[] stack) {
+    FrameNode frameNode = new FrameNode(Opcodes.F_NEW, 0, null, 0, null);
+    frameNode.type = type;
+    frameNode.local = local == null ? null : Arrays.asList(local);
+    frameNode.stack = stack == null ? null : Arrays.asList(stack);
+    methodNode.instructions.add(frameNode);
+    return this;
+  }
+
+  MethodNode build() {
+    methodNode.visitEnd();
+    return methodNode;
+  }
+}