public DebuggerSyntaxTree(SoalSyntaxNode root, SourceText text)
: base(
text,
text.Encoding,
text.ChecksumAlgorithm,
path: "",
options: SoalParseOptions.Default,
root: root,
directives: DirectiveStack.Empty)
{
}
/// <summary>
/// <para>
/// Internal helper for <see cref="SoalSyntaxNode"/> class to create a new syntax tree rooted at the given root node.
/// This method does not create a clone of the given root, but instead preserves it's reference identity.
/// </para>
/// <para>NOTE: This method is only intended to be used from <see cref="SoalSyntaxNode.SyntaxTree"/> property.</para>
/// <para>NOTE: Do not use this method elsewhere, instead use <see cref="Create(SoalSyntaxNode, SoalParseOptions, string, Encoding)"/> method for creating a syntax tree.</para>
/// </summary>
internal static SoalSyntaxTree CreateWithoutClone(SoalSyntaxNode root)
{
Debug.Assert(root != null);
return(new ParsedSyntaxTree(
textOpt: null,
encodingOpt: null,
checksumAlgorithm: SourceHashAlgorithm.Sha1,
path: "",
options: SoalParseOptions.Default,
root: root,
directives: DirectiveStack.Empty,
cloneRoot: false));
}
internal ParsedSyntaxTree(SourceText textOpt, Encoding encodingOpt, SourceHashAlgorithm checksumAlgorithm, string path, SoalParseOptions options, SoalSyntaxNode root, DirectiveStack directives, bool cloneRoot = true)
{
Debug.Assert(root != null);
Debug.Assert(options != null);
Debug.Assert(path != null);
Debug.Assert(textOpt == null || textOpt.Encoding == encodingOpt && textOpt.ChecksumAlgorithm == checksumAlgorithm);
_lazyText = textOpt;
_encodingOpt = encodingOpt ?? textOpt?.Encoding;
_checksumAlgorithm = checksumAlgorithm;
_options = options;
_path = path;
_root = cloneRoot ? new MainSyntax((InternalSyntaxNode)root.Green, this, 0) : root;
_hasCompilationUnitRoot = root.Kind == SoalSyntaxKind.Main;
this.SetDirectiveStack(directives);
}
/// <summary>
/// Creates a new syntax tree from a syntax node.
/// </summary>
public static SoalSyntaxTree Create(SoalSyntaxNode root, SoalParseOptions options = null, string path = "", Encoding encoding = null)
{
if (root == null)
{
throw new ArgumentNullException(nameof(root));
}
var directives = DirectiveStack.Empty;
return(new ParsedSyntaxTree(
textOpt: null,
encodingOpt: encoding,
checksumAlgorithm: SourceHashAlgorithm.Sha1,
path: path,
options: options ?? SoalParseOptions.Default,
root: root,
directives: directives));
}
public override bool TryGetRoot(out SoalSyntaxNode root)
{
root = _root;
return(true);
}
/// <summary> /// Gets the root node of the syntax tree if it is already available. /// </summary> public abstract bool TryGetRoot(out SoalSyntaxNode root);
/// <summary>
/// Creates a new syntax tree from a syntax node with text that should correspond to the syntax node.
/// </summary>
/// <remarks>This is used by the ExpressionEvaluator.</remarks>
internal static SoalSyntaxTree CreateForDebugger(SoalSyntaxNode root, SourceText text)
{
Debug.Assert(root != null);
return(new DebuggerSyntaxTree(root, text));
}
