using System;

using System.Collections.Generic;

using System.Runtime.InteropServices;

using System.Text;

using Microsoft.Win32.SafeHandles;

namespace BinaryNinja

{

[StructLayout(LayoutKind.Sequential)]

internal unsafe struct BNInstructionTextLine

{

/// <summary>

/// BNInstructionTextToken* tokens

/// </summary>

public IntPtr tokens;

/// <summary>

/// uint64_t count

/// </summary>

public ulong count;

}

public sealed class InstructionTextLine

{

public InstructionTextToken[] Tokens { get; } = Array.Empty<InstructionTextToken>();

// The virtual address of the first byte of the instruction this line disassembles. Python's

// Function.instructions / BinaryView.instructions generators yield (tokens, addr) per

// instruction; this field carries that address so consumers do not lose it. It is 0 when the

// line was not produced by an address-walking generator (e.g. synthesized token lists).

public ulong Address { get; } = 0;

// The byte length of the instruction this line disassembles. Python's

// BasicBlock.__getitem__ (basicblock.py:210) yields (tokens, size) per instruction, so the

// size is as much a part of an instruction's identity as its address. It is 0 when the line

// was not produced by an address-walking generator (e.g. synthesized token lists); a block's

// last instruction has no successor, so its size cannot otherwise be recovered from

// consecutive addresses.

public ulong ByteSize { get; } = 0;

public InstructionTextLine()

{

}

public InstructionTextLine(InstructionTextToken[] tokens)

{

this.Tokens = tokens;

}

public InstructionTextLine(InstructionTextToken[] tokens, ulong address)

{

this.Tokens = tokens;

this.Address = address;

}

public InstructionTextLine(InstructionTextToken[] tokens, ulong address, ulong byteSize)

{

this.Tokens = tokens;

this.Address = address;

this.ByteSize = byteSize;

}

public override string ToString()

{

StringBuilder builder = new StringBuilder();

foreach (InstructionTextToken token in Tokens)

{

builder.Append(token.Text);

}

return builder.ToString();

}

}

}