Example usage for org.objectweb.asm MethodVisitor visitLocalVariable

List of usage examples for org.objectweb.asm MethodVisitor visitLocalVariable

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Introduction

In this page you can find the example usage for org.objectweb.asm MethodVisitor visitLocalVariable.

Prototype

public void visitLocalVariable(final String name, final String descriptor, final String signature,
        final Label start, final Label end, final int index)

Source Link

Document

Visits a local variable declaration.

Usage

From source file:org.spongepowered.test.decompile.OperatorTests.java

License:Open Source License

@Test
public void testIntConstant() {
    TestMethodBuilder builder = new TestMethodBuilder("test_mth", "(I)V");
    MethodVisitor mv = builder.getGenerator();
    Label start = new Label();
    mv.visitLabel(start);/*  w  w  w  .jav a2  s . co  m*/
    Label end = new Label();
    mv.visitIntInsn(BIPUSH, 65);
    mv.visitIntInsn(ISTORE, 0);
    mv.visitLabel(end);
    mv.visitInsn(RETURN);
    mv.visitLocalVariable("i", "I", null, start, end, 0);

    String insn = TestHelper.getAsString(builder.finish(), "test_mth");
    String good = "i = 65;";
    Assert.assertEquals(good, insn);
}

From source file:org.spongepowered.test.decompile.OperatorTests.java

License:Open Source License

@Test
public void testTypeConstant() {
    TestMethodBuilder builder = new TestMethodBuilder("test_mth", "(I)V");
    MethodVisitor mv = builder.getGenerator();
    Label start = new Label();
    mv.visitLabel(start);// w w w  .  ja  v a  2  s  .  c om
    Label end = new Label();
    mv.visitLdcInsn(Type.getType("Ljava/lang/String;"));
    mv.visitIntInsn(ASTORE, 0);
    mv.visitLabel(end);
    mv.visitInsn(RETURN);
    mv.visitLocalVariable("i", "Ljava/lang/Class;", null, start, end, 0);

    String insn = TestHelper.getAsString(builder.finish(), "test_mth");
    String good = "i = String.class;";
    Assert.assertEquals(good, insn);
}

From source file:org.spongepowered.test.decompile.OperatorTests.java

License:Open Source License

@Test
public void testNegative() {
    TestMethodBuilder builder = new TestMethodBuilder("test_mth", "(II)V");
    MethodVisitor mv = builder.getGenerator();
    Label start = new Label();
    mv.visitLabel(start);//from  w w  w  . j a  v  a2  s  .  co m
    Label end = new Label();
    mv.visitIntInsn(ILOAD, 1);
    mv.visitInsn(INEG);
    mv.visitIntInsn(ISTORE, 0);
    mv.visitLabel(end);
    mv.visitInsn(RETURN);
    mv.visitLocalVariable("i", "I", null, start, end, 0);
    mv.visitLocalVariable("a", "I", null, start, end, 1);

    String insn = TestHelper.getAsString(builder.finish(), "test_mth");
    String good = "i = -a;";
    Assert.assertEquals(good, insn);
}

From source file:org.spongepowered.test.decompile.OperatorTests.java

License:Open Source License

@Test
public void testAdd() {
    TestMethodBuilder builder = new TestMethodBuilder("test_mth", "(III)V");
    MethodVisitor mv = builder.getGenerator();
    Label start = new Label();
    mv.visitLabel(start);//from  w  w  w.  j a  va2 s  .co m
    Label end = new Label();
    mv.visitIntInsn(ILOAD, 1);
    mv.visitIntInsn(ILOAD, 2);
    mv.visitInsn(IADD);
    mv.visitIntInsn(ISTORE, 0);
    mv.visitLabel(end);
    mv.visitInsn(RETURN);
    mv.visitLocalVariable("i", "I", null, start, end, 0);
    mv.visitLocalVariable("a", "I", null, start, end, 1);
    mv.visitLocalVariable("b", "I", null, start, end, 2);

    String insn = TestHelper.getAsString(builder.finish(), "test_mth");
    String good = "i = a + b;";
    Assert.assertEquals(good, insn);
}

From source file:org.spongepowered.test.decompile.OperatorTests.java

License:Open Source License

@Test
public void testSub() {
    TestMethodBuilder builder = new TestMethodBuilder("test_mth", "(III)V");
    MethodVisitor mv = builder.getGenerator();
    Label start = new Label();
    mv.visitLabel(start);/*from ww  w .  j a  va2  s. c om*/
    Label end = new Label();
    mv.visitIntInsn(ILOAD, 1);
    mv.visitIntInsn(ILOAD, 2);
    mv.visitInsn(ISUB);
    mv.visitIntInsn(ISTORE, 0);
    mv.visitLabel(end);
    mv.visitInsn(RETURN);
    mv.visitLocalVariable("i", "I", null, start, end, 0);
    mv.visitLocalVariable("a", "I", null, start, end, 1);
    mv.visitLocalVariable("b", "I", null, start, end, 2);

    String insn = TestHelper.getAsString(builder.finish(), "test_mth");
    String good = "i = a - b;";
    Assert.assertEquals(good, insn);
}

From source file:org.spongepowered.test.decompile.OperatorTests.java

License:Open Source License

@Test
public void testMultiply() {
    TestMethodBuilder builder = new TestMethodBuilder("test_mth", "(III)V");
    MethodVisitor mv = builder.getGenerator();
    Label start = new Label();
    mv.visitLabel(start);/*from  w  w  w.j  a va  2 s  .co  m*/
    Label end = new Label();
    mv.visitIntInsn(ILOAD, 1);
    mv.visitIntInsn(ILOAD, 2);
    mv.visitInsn(IMUL);
    mv.visitIntInsn(ISTORE, 0);
    mv.visitLabel(end);
    mv.visitInsn(RETURN);
    mv.visitLocalVariable("i", "I", null, start, end, 0);
    mv.visitLocalVariable("a", "I", null, start, end, 1);
    mv.visitLocalVariable("b", "I", null, start, end, 2);

    String insn = TestHelper.getAsString(builder.finish(), "test_mth");
    String good = "i = a * b;";
    Assert.assertEquals(good, insn);
}

From source file:org.spongepowered.test.decompile.OperatorTests.java

License:Open Source License

@Test
public void testDiv() {
    TestMethodBuilder builder = new TestMethodBuilder("test_mth", "(III)V");
    MethodVisitor mv = builder.getGenerator();
    Label start = new Label();
    mv.visitLabel(start);/* www. j a  v  a2 s.co m*/
    Label end = new Label();
    mv.visitIntInsn(ILOAD, 1);
    mv.visitIntInsn(ILOAD, 2);
    mv.visitInsn(IDIV);
    mv.visitIntInsn(ISTORE, 0);
    mv.visitLabel(end);
    mv.visitInsn(RETURN);
    mv.visitLocalVariable("i", "I", null, start, end, 0);
    mv.visitLocalVariable("a", "I", null, start, end, 1);
    mv.visitLocalVariable("b", "I", null, start, end, 2);

    String insn = TestHelper.getAsString(builder.finish(), "test_mth");
    String good = "i = a / b;";
    Assert.assertEquals(good, insn);
}

From source file:org.spongepowered.test.decompile.OperatorTests.java

License:Open Source License

@Test
public void testRem() {
    TestMethodBuilder builder = new TestMethodBuilder("test_mth", "(III)V");
    MethodVisitor mv = builder.getGenerator();
    Label start = new Label();
    mv.visitLabel(start);//www .j a  v a 2s. co  m
    Label end = new Label();
    mv.visitIntInsn(ILOAD, 1);
    mv.visitIntInsn(ILOAD, 2);
    mv.visitInsn(IREM);
    mv.visitIntInsn(ISTORE, 0);
    mv.visitLabel(end);
    mv.visitInsn(RETURN);
    mv.visitLocalVariable("i", "I", null, start, end, 0);
    mv.visitLocalVariable("a", "I", null, start, end, 1);
    mv.visitLocalVariable("b", "I", null, start, end, 2);

    String insn = TestHelper.getAsString(builder.finish(), "test_mth");
    String good = "i = a % b;";
    Assert.assertEquals(good, insn);
}

From source file:org.spongepowered.test.decompile.OperatorTests.java

License:Open Source License

@Test
public void testShr() {
    TestMethodBuilder builder = new TestMethodBuilder("test_mth", "(III)V");
    MethodVisitor mv = builder.getGenerator();
    Label start = new Label();
    mv.visitLabel(start);/*from ww w .j a  v  a  2s  .  com*/
    Label end = new Label();
    mv.visitIntInsn(ILOAD, 1);
    mv.visitIntInsn(ILOAD, 2);
    mv.visitInsn(ISHR);
    mv.visitIntInsn(ISTORE, 0);
    mv.visitLabel(end);
    mv.visitInsn(RETURN);
    mv.visitLocalVariable("i", "I", null, start, end, 0);
    mv.visitLocalVariable("a", "I", null, start, end, 1);
    mv.visitLocalVariable("b", "I", null, start, end, 2);

    String insn = TestHelper.getAsString(builder.finish(), "test_mth");
    String good = "i = a >> b;";
    Assert.assertEquals(good, insn);
}

From source file:org.spongepowered.test.decompile.OperatorTests.java

License:Open Source License

@Test
public void testUshr() {
    TestMethodBuilder builder = new TestMethodBuilder("test_mth", "(III)V");
    MethodVisitor mv = builder.getGenerator();
    Label start = new Label();
    mv.visitLabel(start);/* w  w  w .j a va  2 s . c  o m*/
    Label end = new Label();
    mv.visitIntInsn(ILOAD, 1);
    mv.visitIntInsn(ILOAD, 2);
    mv.visitInsn(IUSHR);
    mv.visitIntInsn(ISTORE, 0);
    mv.visitLabel(end);
    mv.visitInsn(RETURN);
    mv.visitLocalVariable("i", "I", null, start, end, 0);
    mv.visitLocalVariable("a", "I", null, start, end, 1);
    mv.visitLocalVariable("b", "I", null, start, end, 2);

    String insn = TestHelper.getAsString(builder.finish(), "test_mth");
    String good = "i = a >>> b;";
    Assert.assertEquals(good, insn);
}