protected override void WalkCodeExpression(CodeExpression codeExpression)
{
var ix = (codeExpression.CodeType == CodeType.Error || codeExpression.CodeType == CodeType.Result)
? Tuple.Create("state =>", "")
: Tuple.Create("state => {", "}");
var prefix = ix.Item1;
var suffix = ix.Item2;
var startCursor = codeExpression.CodeSpan.Start;
var code = (prefix + codeExpression.CodeSpan.Code + suffix).TrimEnd();
var expression = Syntax.ParseExpression(code);
if (expression.ContainsDiagnostics)
{
foreach (var diag in new DummySyntaxTree().GetDiagnostics(expression))
{
var cursor = diag.Location.IsInSource
? startCursor.Advance(-prefix.Length + diag.Location.SourceSpan.Start)
: startCursor;
this.result.Errors.Add(new CompilerError(startCursor.FileName, cursor.Line, cursor.Column, diag.Info.MessageIdentifier, diag.Info.GetMessage()) { IsWarning = diag.Info.Severity == DiagnosticSeverity.Warning });
}
}
if (expression.Span.Length != code.Length)
{
var sliced = code.Substring(expression.Span.Length);
var trimmed = sliced.TrimStart();
this.result.AddCompilerError(startCursor.Advance(-prefix.Length + expression.Span.Length + (sliced.Length - trimmed.Length)), () => Resources.CS1026_ERROR_UnexpectedCharacter, trimmed[0]);
}
}
protected override void WalkCodeExpression(CodeExpression codeExpression)
{
const string prefix = "state =>";
var startCursor = codeExpression.CodeSpan.Start;
var code = (prefix + codeExpression.CodeSpan.Code).TrimEnd();
var expression = SyntaxFactory.ParseExpression(code);
if (expression.ContainsDiagnostics)
{
foreach (var diag in expression.GetDiagnostics())
{
var cursor = diag.Location.IsInSource
? startCursor.Advance(-prefix.Length + diag.Location.SourceSpan.Start)
: startCursor;
this.result.Errors.Add(new CompilerError(startCursor.FileName ?? string.Empty, cursor.Line, cursor.Column, diag.Id, diag.GetMessage()) { IsWarning = diag.WarningLevel > 0 });
}
}
}
protected virtual void WalkCodeExpression(CodeExpression codeExpression)
{
}
protected override void WalkCodeExpression(CodeExpression codeExpression)
{
this.Set(codeExpression, "string");
}
protected override void WalkCodeExpression(CodeExpression codeExpression)
{
this.containsAssertions[codeExpression] = false;
}
protected override void WalkCodeExpression(CodeExpression codeExpression) => this.RenderCodeExpression(codeExpression, this.writer, this.currentIndentation);
protected override void WalkCodeExpression(CodeExpression codeExpression)
{
this.containsAssertions[codeExpression] = codeExpression.CodeType == CodeType.Parse;
}
protected override void WalkCodeExpression(CodeExpression codeExpression)
{
switch (codeExpression.CodeType)
{
case CodeType.Result:
case CodeType.State:
this.zeroWidth[codeExpression] = true;
break;
case CodeType.Error:
this.zeroWidth[codeExpression] = false;
break;
default:
throw new InvalidOperationException(string.Format(CultureInfo.CurrentCulture, "Unknown code type '{0}'.", codeExpression.CodeType));
}
}