org.objectweb.asm.tree.analysis.Frame#getStackSize ( )源码实例Demo

下面列出了org.objectweb.asm.tree.analysis.Frame#getStackSize ( ) 实例代码，或者点击链接到github查看源代码，也可以在右侧发表评论。

源代码1 项目： Concurnas 文件： CheckClassAdapter.java

static void printAnalyzerResult(
    final MethodNode method, final Analyzer<BasicValue> analyzer, final PrintWriter printWriter) {
  Textifier textifier = new Textifier();
  TraceMethodVisitor traceMethodVisitor = new TraceMethodVisitor(textifier);

  printWriter.println(method.name + method.desc);
  for (int i = 0; i < method.instructions.size(); ++i) {
    method.instructions.get(i).accept(traceMethodVisitor);

    StringBuilder stringBuilder = new StringBuilder();
    Frame<BasicValue> frame = analyzer.getFrames()[i];
    if (frame == null) {
      stringBuilder.append('?');
    } else {
      for (int j = 0; j < frame.getLocals(); ++j) {
        stringBuilder.append(getUnqualifiedName(frame.getLocal(j).toString())).append(' ');
      }
      stringBuilder.append(" : ");
      for (int j = 0; j < frame.getStackSize(); ++j) {
        stringBuilder.append(getUnqualifiedName(frame.getStack(j).toString())).append(' ');
      }
    }
    while (stringBuilder.length() < method.maxStack + method.maxLocals + 1) {
      stringBuilder.append(' ');
    }
    printWriter.print(Integer.toString(i + 100000).substring(1));
    printWriter.print(
        " " + stringBuilder + " : " + textifier.text.get(textifier.text.size() - 1));
  }
  for (TryCatchBlockNode tryCatchBlock : method.tryCatchBlocks) {
    tryCatchBlock.accept(traceMethodVisitor);
    printWriter.print(" " + textifier.text.get(textifier.text.size() - 1));
  }
  printWriter.println();
}

源代码2 项目： AVM 文件： StackThisTracker.java

public boolean isThisTargetOfGet(int index) {
    Frame<ConstructorThisInterpreter.ThisValue> frame = this.frames[index];
    // Note that we will treat this as safe, even on invalid bytecode (we handle the stack underflow).
    int size = frame.getStackSize();
    return (size > 0)
            ? frame.getStack(size - 1).isThis
            : false;
}

源代码3 项目： AVM 文件： StackThisTracker.java

public boolean isThisTargetOfPut(int index) {
    Frame<ConstructorThisInterpreter.ThisValue> frame = this.frames[index];
    // Note that we will treat this as safe, even on invalid bytecode (we handle the stack underflow).
    int size = frame.getStackSize();
    return (size > 1)
            ? frame.getStack(size - 2).isThis
            : false;
}

源代码4 项目： JByteMod-Beta 文件： CheckClassAdapter.java

static void printAnalyzerResult(MethodNode method, Analyzer<BasicValue> a, final PrintWriter pw) {
  Frame<BasicValue>[] frames = a.getFrames();
  Textifier t = new Textifier();
  TraceMethodVisitor mv = new TraceMethodVisitor(t);

  pw.println(method.name + method.desc);
  for (int j = 0; j < method.instructions.size(); ++j) {
    method.instructions.get(j).accept(mv);

    StringBuilder sb = new StringBuilder();
    Frame<BasicValue> f = frames[j];
    if (f == null) {
      sb.append('?');
    } else {
      for (int k = 0; k < f.getLocals(); ++k) {
        sb.append(getShortName(f.getLocal(k).toString())).append(' ');
      }
      sb.append(" : ");
      for (int k = 0; k < f.getStackSize(); ++k) {
        sb.append(getShortName(f.getStack(k).toString())).append(' ');
      }
    }
    while (sb.length() < method.maxStack + method.maxLocals + 1) {
      sb.append(' ');
    }
    pw.print(Integer.toString(j + 100000).substring(1));
    pw.print(" " + sb + " : " + t.text.get(t.text.size() - 1));
  }
  for (int j = 0; j < method.tryCatchBlocks.size(); ++j) {
    method.tryCatchBlocks.get(j).accept(mv);
    pw.print(" " + t.text.get(t.text.size() - 1));
  }
  pw.println();
}

源代码5 项目： JReFrameworker 文件： CheckClassAdapter.java

static void printAnalyzerResult(
    final MethodNode method, final Analyzer<BasicValue> analyzer, final PrintWriter printWriter) {
  Textifier textifier = new Textifier();
  TraceMethodVisitor traceMethodVisitor = new TraceMethodVisitor(textifier);

  printWriter.println(method.name + method.desc);
  for (int i = 0; i < method.instructions.size(); ++i) {
    method.instructions.get(i).accept(traceMethodVisitor);

    StringBuilder stringBuilder = new StringBuilder();
    Frame<BasicValue> frame = analyzer.getFrames()[i];
    if (frame == null) {
      stringBuilder.append('?');
    } else {
      for (int j = 0; j < frame.getLocals(); ++j) {
        stringBuilder.append(getUnqualifiedName(frame.getLocal(j).toString())).append(' ');
      }
      stringBuilder.append(" : ");
      for (int j = 0; j < frame.getStackSize(); ++j) {
        stringBuilder.append(getUnqualifiedName(frame.getStack(j).toString())).append(' ');
      }
    }
    while (stringBuilder.length() < method.maxStack + method.maxLocals + 1) {
      stringBuilder.append(' ');
    }
    printWriter.print(Integer.toString(i + 100000).substring(1));
    printWriter.print(
        " " + stringBuilder + " : " + textifier.text.get(textifier.text.size() - 1));
  }
  for (TryCatchBlockNode tryCatchBlock : method.tryCatchBlocks) {
    tryCatchBlock.accept(traceMethodVisitor);
    printWriter.print(" " + textifier.text.get(textifier.text.size() - 1));
  }
  printWriter.println();
}

源代码6 项目： JReFrameworker 文件： CheckClassAdapter.java

static void printAnalyzerResult(
    final MethodNode method, final Analyzer<BasicValue> analyzer, final PrintWriter printWriter) {
  Textifier textifier = new Textifier();
  TraceMethodVisitor traceMethodVisitor = new TraceMethodVisitor(textifier);

  printWriter.println(method.name + method.desc);
  for (int i = 0; i < method.instructions.size(); ++i) {
    method.instructions.get(i).accept(traceMethodVisitor);

    StringBuilder stringBuilder = new StringBuilder();
    Frame<BasicValue> frame = analyzer.getFrames()[i];
    if (frame == null) {
      stringBuilder.append('?');
    } else {
      for (int j = 0; j < frame.getLocals(); ++j) {
        stringBuilder.append(getUnqualifiedName(frame.getLocal(j).toString())).append(' ');
      }
      stringBuilder.append(" : ");
      for (int j = 0; j < frame.getStackSize(); ++j) {
        stringBuilder.append(getUnqualifiedName(frame.getStack(j).toString())).append(' ');
      }
    }
    while (stringBuilder.length() < method.maxStack + method.maxLocals + 1) {
      stringBuilder.append(' ');
    }
    printWriter.print(Integer.toString(i + 100000).substring(1));
    printWriter.print(
        " " + stringBuilder + " : " + textifier.text.get(textifier.text.size() - 1));
  }
  for (TryCatchBlockNode tryCatchBlock : method.tryCatchBlocks) {
    tryCatchBlock.accept(traceMethodVisitor);
    printWriter.print(" " + textifier.text.get(textifier.text.size() - 1));
  }
  printWriter.println();
}

源代码7 项目： AVM 文件： ConstructorThisInterpreterTest.java

@Test
public void examineTestConstructor() throws Exception {
    MethodNode node = buildTestConstructor();
    Analyzer<ConstructorThisInterpreter.ThisValue> analyzer = new Analyzer<>(new ConstructorThisInterpreter());
    Frame<ConstructorThisInterpreter.ThisValue>[] frames = analyzer.analyze(ConstructorThisInterpreterTest.class.getName(), node);
    
    // Below are the totals derived from manually inspecting the bytecode below and how we interact with it.
    int bytecodeCount = 17;
    int explicitFrameCount = 2;
    int labelCount = 2;
    Assert.assertEquals(bytecodeCount + explicitFrameCount + labelCount, frames.length);
    
    // To make this clear (since this is not obvious), we write the frame stacks.
    for (Frame<ConstructorThisInterpreter.ThisValue> frame : frames) {
        int size = frame.getStackSize();
        report(size + ": ");
        for (int i = size; i > 0; --i) {
            ConstructorThisInterpreter.ThisValue val = frame.getStack(i-1);
            String value = (null != val)
                    ? (val.isThis ? "T" : "F")
                    : "_";
            report(value);
        }
        reportLine();
    }
    
    // Now, verify the top of the stack at each bytecode.
    int index = 0;
    Assert.assertEquals(null, peekStackTop(frames[index++]));
    // ALOAD
    Assert.assertEquals(true, peekStackTop(frames[index++]).isThis);
    // INVOKESPECIAL
    Assert.assertEquals(null, peekStackTop(frames[index++]));
    // ICONST_5
    Assert.assertEquals(false, peekStackTop(frames[index++]).isThis);
    // ILOAD
    Assert.assertEquals(false, peekStackTop(frames[index++]).isThis);
    // IF_ICMPNE
    Assert.assertEquals(null, peekStackTop(frames[index++]));
    // ALOAD
    Assert.assertEquals(true, peekStackTop(frames[index++]).isThis);
    // GOTO
    Assert.assertEquals(null, peekStackTop(frames[index++]));
    // (label)
    Assert.assertEquals(null, peekStackTop(frames[index++]));
    // (frame)
    Assert.assertEquals(null, peekStackTop(frames[index++]));
    // ALOAD
    Assert.assertEquals(false, peekStackTop(frames[index++]).isThis);
    // (label)
    Assert.assertEquals(false, peekStackTop(frames[index++]).isThis);
    // (frame)
    Assert.assertEquals(false, peekStackTop(frames[index++]).isThis);
    // ILOAD
    Assert.assertEquals(false, peekStackTop(frames[index++]).isThis);
    // PUTFIELD
    Assert.assertEquals(null, peekStackTop(frames[index++]));
    // ALOAD
    Assert.assertEquals(true, peekStackTop(frames[index++]).isThis);
    // ICONST_1
    Assert.assertEquals(false, peekStackTop(frames[index++]).isThis);
    // PUTFIELD
    Assert.assertEquals(null, peekStackTop(frames[index++]));
    // ALOAD
    Assert.assertEquals(false, peekStackTop(frames[index++]).isThis);
    // ICONST_2
    Assert.assertEquals(false, peekStackTop(frames[index++]).isThis);
    // PUTFIELD
    Assert.assertEquals(null, peekStackTop(frames[index++]));
    // RETURN
    Assert.assertEquals(frames.length, index);
}

源代码8 项目： AVM 文件： ConstructorThisInterpreterTest.java

@Test
public void examineSecondConstructor() throws Exception {
    MethodNode node = buildSecondConstructor();
    Analyzer<ConstructorThisInterpreter.ThisValue> analyzer = new Analyzer<>(new ConstructorThisInterpreter());
    Frame<ConstructorThisInterpreter.ThisValue>[] frames = analyzer.analyze(ConstructorThisInterpreterTest.class.getName(), node);
    
    // Below are the totals derived from manually inspecting the bytecode below and how we interact with it.
    int bytecodeCount = 6;
    int explicitFrameCount = 0;
    int labelCount = 0;
    Assert.assertEquals(bytecodeCount + explicitFrameCount + labelCount, frames.length);
    
    // To make this clear (since this is not obvious), we write the frame stacks.
    for (Frame<ConstructorThisInterpreter.ThisValue> frame : frames) {
        int size = frame.getStackSize();
        report(size + ": ");
        for (int i = size; i > 0; --i) {
            ConstructorThisInterpreter.ThisValue val = frame.getStack(i-1);
            String value = (null != val)
                    ? (val.isThis ? "T" : "F")
                    : "_";
            report(value);
        }
        reportLine();
    }
    
    // Now, verify the top of the stack at each bytecode.
    int index = 0;
    Assert.assertEquals(null, peekStackTop(frames[index++]));
    // ALOAD
    Assert.assertEquals(true, peekStackTop(frames[index++]).isThis);
    // ALOAD
    Assert.assertEquals(false, peekStackTop(frames[index++]).isThis);
    // PUTFIELD
    Assert.assertEquals(null, peekStackTop(frames[index++]));
    // ALOAD
    Assert.assertEquals(true, peekStackTop(frames[index++]).isThis);
    // INVOKESPECIAL
    Assert.assertEquals(null, peekStackTop(frames[index++]));
    // RETURN
    Assert.assertEquals(frames.length, index);
}

源代码9 项目： AVM 文件： ConstructorThisInterpreterTest.java

private ConstructorThisInterpreter.ThisValue peekStackTop(Frame<ConstructorThisInterpreter.ThisValue> frame) {
    int size = frame.getStackSize();
    return (size > 0)
            ? frame.getStack(size - 1)
            : null;
}

方法所在类

org.objectweb.asm.tree.analysis.Frame