public static void AddTabs(FormatterOutput output, int column, int firstOperandCharIndex, int tabSize)
{
#if DEBUG
for (int i = 0; i < spaceStrings.Length; i++)
{
System.Diagnostics.Debug.Assert(spaceStrings[i].Length == i + 1);
}
for (int i = 0; i < tabStrings.Length; i++)
{
System.Diagnostics.Debug.Assert(tabStrings[i].Length == i + 1);
}
#endif
const int max_firstOperandCharIndex = 256;
if (firstOperandCharIndex < 0)
{
firstOperandCharIndex = 0;
}
else if (firstOperandCharIndex > max_firstOperandCharIndex)
{
firstOperandCharIndex = max_firstOperandCharIndex;
}
if (tabSize <= 0)
{
int charsLeft = firstOperandCharIndex - column;
if (charsLeft <= 0)
{
charsLeft = 1;
}
AddStrings(output, spaceStrings, charsLeft);
}
else
{
int endCol = firstOperandCharIndex;
if (endCol <= column)
{
endCol = column + 1;
}
int endColRoundDown = endCol / tabSize * tabSize;
bool addedTabs = endColRoundDown > column;
if (addedTabs)
{
int tabs = (endColRoundDown - (column / tabSize * tabSize)) / tabSize;
AddStrings(output, tabStrings, tabs);
column = endColRoundDown;
}
int spaces = firstOperandCharIndex - column;
if (spaces > 0)
{
AddStrings(output, spaceStrings, spaces);
}
else if (!addedTabs)
{
AddStrings(output, spaceStrings, 1);
}
}
}
static void AddStrings(FormatterOutput output, string[] strings, int count)
{
while (count > 0)
{
int n = count;
if (n >= strings.Length)
{
n = strings.Length;
}
output.Write(strings[n - 1], FormatterOutputTextKind.Text);
count -= n;
}
}
/// <summary> /// Formats the mnemonic and any prefixes /// </summary> /// <param name="instruction">Instruction</param> /// <param name="output">Output</param> public void FormatMnemonic(ref Instruction instruction, FormatterOutput output) => FormatMnemonic(ref instruction, output, FormatMnemonicOptions.None);
/// <summary> /// Formats the mnemonic and any prefixes /// </summary> /// <param name="instruction">Instruction</param> /// <param name="output">Output</param> /// <param name="options">Options</param> public abstract void FormatMnemonic(ref Instruction instruction, FormatterOutput output, FormatMnemonicOptions options);
/// <summary> /// Formats the whole instruction: prefixes, mnemonic, operands /// </summary> /// <param name="instruction">Instruction</param> /// <param name="output">Output</param> public void Format(Instruction instruction, FormatterOutput output) => Format(ref instruction, output);
/// <summary> /// Formats the whole instruction: prefixes, mnemonic, operands /// </summary> /// <param name="instruction">Instruction</param> /// <param name="output">Output</param> public abstract void Format(ref Instruction instruction, FormatterOutput output);
/// <summary> /// Formats all operands /// </summary> /// <param name="instruction">Instruction</param> /// <param name="output">Output</param> public abstract void FormatAllOperands(ref Instruction instruction, FormatterOutput output);
/// <summary> /// Formats an operand separator /// </summary> /// <param name="instruction">Instruction</param> /// <param name="output">Output</param> public abstract void FormatOperandSeparator(ref Instruction instruction, FormatterOutput output);
/// <summary> /// Formats an operand. This is a formatter operand and not necessarily a real instruction operand. /// A formatter can add and remove operands. /// </summary> /// <param name="instruction">Instruction</param> /// <param name="output">Output</param> /// <param name="operand">Operand number, 0-based. This is a formatter operand and isn't necessarily the same as an instruction operand. /// See <see cref="GetOperandCount(ref Instruction)"/></param> public abstract void FormatOperand(ref Instruction instruction, FormatterOutput output, int operand);