81 lines
1.6 KiB
C#
81 lines
1.6 KiB
C#
using System.Text;
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using Syntax;
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using Syntax.Typing.BoundNode;
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namespace Generation.QBE;
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internal class QBEWriter
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{
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private readonly StringBuilder _builder = new();
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private int _currentLine = -1;
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public QBEWriter(string debugFile)
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{
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_builder.AppendLine($"dbgfile \"{debugFile}\"");
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_builder.AppendLine();
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}
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public void StartFunction(string signature)
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{
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_currentLine = -1;
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_builder.Append(signature);
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_builder.AppendLine(" {");
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_builder.AppendLine("@start");
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}
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public void EndFunction()
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{
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_builder.AppendLine("}");
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}
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private void WriteDebugLocation(SourceSpan span)
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{
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var line = span.Start.Line;
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if (_currentLine != line)
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{
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_builder.AppendLine($" dbgloc {line}");
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_currentLine = line;
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}
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}
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public void WriteDebugLocation(BoundNode node)
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{
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var firstToken = node.Tokens.FirstOrDefault();
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if (firstToken != null)
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{
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WriteDebugLocation(firstToken.Span);
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}
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}
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public void Indented(string value)
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{
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_builder.Append('\t');
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_builder.AppendLine(value);
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}
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public void Comment(string comment)
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{
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_builder.AppendLine("# " + comment);
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}
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public void WriteLine(string text)
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{
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_builder.AppendLine(text);
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}
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public void Write(string text)
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{
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_builder.Append(text);
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}
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public void NewLine()
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{
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_builder.AppendLine();
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}
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public override string ToString()
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{
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return _builder.ToString();
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}
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} |