public static FormattingContext Create(
DocumentUri uri,
DocumentSnapshot originalSnapshot,
RazorCodeDocument codeDocument,
FormattingOptions options,
AdhocWorkspaceFactory workspaceFactory,
bool isFormatOnType = false)
{
if (uri is null)
{
throw new ArgumentNullException(nameof(uri));
}
if (originalSnapshot is null)
{
throw new ArgumentNullException(nameof(originalSnapshot));
}
if (codeDocument is null)
{
throw new ArgumentNullException(nameof(codeDocument));
}
if (options is null)
{
throw new ArgumentNullException(nameof(options));
}
if (workspaceFactory is null)
{
throw new ArgumentNullException(nameof(workspaceFactory));
}
var syntaxTree = codeDocument.GetSyntaxTree();
var formattingSpans = syntaxTree.GetFormattingSpans();
var result = new FormattingContext(workspaceFactory)
{
Uri = uri,
OriginalSnapshot = originalSnapshot,
CodeDocument = codeDocument,
Options = options,
IsFormatOnType = isFormatOnType,
FormattingSpans = formattingSpans
};
var sourceText = codeDocument.GetSourceText();
var indentations = new Dictionary <int, IndentationContext>();
var previousIndentationLevel = 0;
for (var i = 0; i < sourceText.Lines.Count; i++)
{
// Get first non-whitespace character position
var nonWsPos = sourceText.Lines[i].GetFirstNonWhitespacePosition();
var existingIndentation = (nonWsPos ?? sourceText.Lines[i].End) - sourceText.Lines[i].Start;
// The existingIndentation above is measured in characters, and is used to create text edits
// The below is measured in columns, so takes into account tab size. This is useful for creating
// new indentation strings
var existingIndentationSize = sourceText.Lines[i].GetIndentationSize(options.TabSize);
var emptyOrWhitespaceLine = false;
if (nonWsPos == null)
{
emptyOrWhitespaceLine = true;
nonWsPos = sourceText.Lines[i].Start;
}
// position now contains the first non-whitespace character or 0. Get the corresponding FormattingSpan.
if (result.TryGetFormattingSpan(nonWsPos.Value, out var span))
{
indentations[i] = new IndentationContext(firstSpan: span)
{
Line = i,
RazorIndentationLevel = span.RazorIndentationLevel,
HtmlIndentationLevel = span.HtmlIndentationLevel,
RelativeIndentationLevel = span.IndentationLevel - previousIndentationLevel,
ExistingIndentation = existingIndentation,
ExistingIndentationSize = existingIndentationSize,
EmptyOrWhitespaceLine = emptyOrWhitespaceLine,
};
previousIndentationLevel = span.IndentationLevel;
}
else
{
// Couldn't find a corresponding FormattingSpan. Happens if it is a 0 length line.
// Let's create a 0 length span to represent this and default it to HTML.
var placeholderSpan = new FormattingSpan(
new Language.Syntax.TextSpan(nonWsPos.Value, 0),
new Language.Syntax.TextSpan(nonWsPos.Value, 0),
FormattingSpanKind.Markup,
FormattingBlockKind.Markup,
razorIndentationLevel: 0,
htmlIndentationLevel: 0,
isInClassBody: false,
componentLambdaNestingLevel: 0);
indentations[i] = new IndentationContext(firstSpan: placeholderSpan)
{
Line = i,
RazorIndentationLevel = 0,
HtmlIndentationLevel = 0,
RelativeIndentationLevel = previousIndentationLevel,
ExistingIndentation = existingIndentation,
ExistingIndentationSize = existingIndentation,
EmptyOrWhitespaceLine = emptyOrWhitespaceLine,
};
}
}
result.Indentations = indentations;
return(result);
}
public static FormattingContext Create(
DocumentUri uri,
DocumentSnapshot originalSnapshot,
RazorCodeDocument codeDocument,
FormattingOptions options,
Range range = null,
bool isFormatOnType = false)
{
if (uri is null)
{
throw new ArgumentNullException(nameof(uri));
}
if (originalSnapshot is null)
{
throw new ArgumentNullException(nameof(originalSnapshot));
}
if (codeDocument is null)
{
throw new ArgumentNullException(nameof(codeDocument));
}
if (options is null)
{
throw new ArgumentNullException(nameof(options));
}
var text = codeDocument.GetSourceText();
range ??= TextSpan.FromBounds(0, text.Length).AsRange(text);
var result = new FormattingContext()
{
Uri = uri,
OriginalSnapshot = originalSnapshot,
CodeDocument = codeDocument,
Range = range,
Options = options,
IsFormatOnType = isFormatOnType
};
var source = codeDocument.Source;
var syntaxTree = codeDocument.GetSyntaxTree();
var formattingSpans = syntaxTree.GetFormattingSpans();
var indentations = new Dictionary <int, IndentationContext>();
var total = 0;
var previousIndentationLevel = 0;
for (var i = 0; i < source.Lines.Count; i++)
{
// Get first non-whitespace character position
var lineLength = source.Lines.GetLineLength(i);
var nonWsChar = 0;
for (var j = 0; j < lineLength; j++)
{
var ch = source[total + j];
if (!char.IsWhiteSpace(ch) && !ParserHelpers.IsNewLine(ch))
{
nonWsChar = j;
break;
}
}
// position now contains the first non-whitespace character or 0. Get the corresponding FormattingSpan.
if (TryGetFormattingSpan(total + nonWsChar, formattingSpans, out var span))
{
indentations[i] = new IndentationContext
{
Line = i,
IndentationLevel = span.IndentationLevel,
RelativeIndentationLevel = span.IndentationLevel - previousIndentationLevel,
ExistingIndentation = nonWsChar,
FirstSpan = span,
};
previousIndentationLevel = span.IndentationLevel;
}
else
{
// Couldn't find a corresponding FormattingSpan. Happens if it is a 0 length line.
// Let's create a 0 length span to represent this and default it to HTML.
var placeholderSpan = new FormattingSpan(
new Language.Syntax.TextSpan(total + nonWsChar, 0),
new Language.Syntax.TextSpan(total + nonWsChar, 0),
FormattingSpanKind.Markup,
FormattingBlockKind.Markup,
indentationLevel: 0,
isInClassBody: false);
indentations[i] = new IndentationContext
{
Line = i,
IndentationLevel = 0,
RelativeIndentationLevel = previousIndentationLevel,
ExistingIndentation = nonWsChar,
FirstSpan = placeholderSpan,
};
}
total += lineLength;
}
result.Indentations = indentations;
return(result);
}
public static FormattingContext Create(
DocumentUri uri,
DocumentSnapshot originalSnapshot,
RazorCodeDocument codeDocument,
FormattingOptions options,
Range range = null,
bool isFormatOnType = false)
{
if (uri is null)
{
throw new ArgumentNullException(nameof(uri));
}
if (originalSnapshot is null)
{
throw new ArgumentNullException(nameof(originalSnapshot));
}
if (codeDocument is null)
{
throw new ArgumentNullException(nameof(codeDocument));
}
if (options is null)
{
throw new ArgumentNullException(nameof(options));
}
var text = codeDocument.GetSourceText();
range ??= TextSpan.FromBounds(0, text.Length).AsRange(text);
var result = new FormattingContext()
{
Uri = uri,
OriginalSnapshot = originalSnapshot,
CodeDocument = codeDocument,
Range = range,
Options = options,
IsFormatOnType = isFormatOnType
};
var sourceText = codeDocument.GetSourceText();
var syntaxTree = codeDocument.GetSyntaxTree();
var formattingSpans = syntaxTree.GetFormattingSpans();
var indentations = new Dictionary <int, IndentationContext>();
var previousIndentationLevel = 0;
for (var i = 0; i < sourceText.Lines.Count; i++)
{
// Get first non-whitespace character position
var nonWsPos = sourceText.Lines[i].GetFirstNonWhitespacePosition();
var existingIndentation = (nonWsPos ?? sourceText.Lines[i].End) - sourceText.Lines[i].Start;
var emptyOrWhitespaceLine = false;
if (nonWsPos == null)
{
emptyOrWhitespaceLine = true;
nonWsPos = sourceText.Lines[i].Start;
}
// position now contains the first non-whitespace character or 0. Get the corresponding FormattingSpan.
if (TryGetFormattingSpan(nonWsPos.Value, formattingSpans, out var span))
{
indentations[i] = new IndentationContext
{
Line = i,
RazorIndentationLevel = span.RazorIndentationLevel,
HtmlIndentationLevel = span.HtmlIndentationLevel,
RelativeIndentationLevel = span.IndentationLevel - previousIndentationLevel,
ExistingIndentation = existingIndentation,
FirstSpan = span,
EmptyOrWhitespaceLine = emptyOrWhitespaceLine,
};
previousIndentationLevel = span.IndentationLevel;
}
else
{
// Couldn't find a corresponding FormattingSpan. Happens if it is a 0 length line.
// Let's create a 0 length span to represent this and default it to HTML.
var placeholderSpan = new FormattingSpan(
new Language.Syntax.TextSpan(nonWsPos.Value, 0),
new Language.Syntax.TextSpan(nonWsPos.Value, 0),
FormattingSpanKind.Markup,
FormattingBlockKind.Markup,
razorIndentationLevel: 0,
htmlIndentationLevel: 0,
isInClassBody: false);
indentations[i] = new IndentationContext
{
Line = i,
RazorIndentationLevel = 0,
HtmlIndentationLevel = 0,
RelativeIndentationLevel = previousIndentationLevel,
ExistingIndentation = existingIndentation,
FirstSpan = placeholderSpan,
EmptyOrWhitespaceLine = emptyOrWhitespaceLine,
};
}
}
result.Indentations = indentations;
return(result);
}
/// <summary>A Dictionary of int (line number) to IndentationContext.</summary>
/// <remarks>
/// Don't use this to discover the indentation level you should have, use
/// <see cref="TryGetIndentationLevel(int, out int)"/> which operates on the position rather than just the line.
/// </remarks>
public IReadOnlyDictionary <int, IndentationContext> GetIndentations()
{
if (_indentations is null)
{
var sourceText = this.SourceText;
var indentations = new Dictionary <int, IndentationContext>();
var previousIndentationLevel = 0;
for (var i = 0; i < sourceText.Lines.Count; i++)
{
var line = sourceText.Lines[i];
// Get first non-whitespace character position
var nonWsPos = line.GetFirstNonWhitespacePosition();
var existingIndentation = (nonWsPos ?? line.End) - line.Start;
// The existingIndentation above is measured in characters, and is used to create text edits
// The below is measured in columns, so takes into account tab size. This is useful for creating
// new indentation strings
var existingIndentationSize = line.GetIndentationSize(this.Options.TabSize);
var emptyOrWhitespaceLine = false;
if (nonWsPos is null)
{
emptyOrWhitespaceLine = true;
nonWsPos = line.Start;
}
// position now contains the first non-whitespace character or 0. Get the corresponding FormattingSpan.
if (TryGetFormattingSpan(nonWsPos.Value, out var span))
{
indentations[i] = new IndentationContext(firstSpan: span)
{
Line = i,
#if DEBUG
DebugOnly_LineText = line.ToString(),
#endif
RazorIndentationLevel = span.RazorIndentationLevel,
HtmlIndentationLevel = span.HtmlIndentationLevel,
RelativeIndentationLevel = span.IndentationLevel - previousIndentationLevel,
ExistingIndentation = existingIndentation,
ExistingIndentationSize = existingIndentationSize,
EmptyOrWhitespaceLine = emptyOrWhitespaceLine,
};
previousIndentationLevel = span.IndentationLevel;
}
else
{
// Couldn't find a corresponding FormattingSpan. Happens if it is a 0 length line.
// Let's create a 0 length span to represent this and default it to HTML.
var placeholderSpan = new FormattingSpan(
new Language.Syntax.TextSpan(nonWsPos.Value, 0),
new Language.Syntax.TextSpan(nonWsPos.Value, 0),
FormattingSpanKind.Markup,
FormattingBlockKind.Markup,
razorIndentationLevel: 0,
htmlIndentationLevel: 0,
isInClassBody: false,
componentLambdaNestingLevel: 0);
indentations[i] = new IndentationContext(firstSpan: placeholderSpan)
{
Line = i,
#if DEBUG
DebugOnly_LineText = line.ToString(),
#endif
RazorIndentationLevel = 0,
HtmlIndentationLevel = 0,
RelativeIndentationLevel = previousIndentationLevel,
ExistingIndentation = existingIndentation,
ExistingIndentationSize = existingIndentation,
EmptyOrWhitespaceLine = emptyOrWhitespaceLine,
};
}
}
_indentations = indentations;
}
return(_indentations);
}