| public static CreateParser ( SupportedLanguage language, TextReader textReader ) : IParser | ||
| language | SupportedLanguage | |
| textReader | TextReader | |
| return | IParser | |
/// <summary>
/// Parse the code. The result may be a CompilationUnit, an Expression, a list of statements or a list of class
/// members.
/// </summary>
public INode Parse(string code)
{
IParser parser = ParserFactory.CreateParser(language, new StringReader(code));
parser.Parse();
this.Errors = parser.Errors;
this.Specials = parser.Lexer.SpecialTracker.RetrieveSpecials();
this.SnippetType = SnippetType.CompilationUnit;
INode result = parser.CompilationUnit;
if (this.Errors.Count > 0)
{
if (language == SupportedLanguage.CSharp)
{
// SEMICOLON HACK : without a trailing semicolon, parsing expressions does not work correctly
parser = ParserFactory.CreateParser(language, new StringReader(code + ";"));
}
else
{
parser = ParserFactory.CreateParser(language, new StringReader(code));
}
Expression expression = parser.ParseExpression();
if (expression != null && parser.Errors.Count < this.Errors.Count)
{
this.Errors = parser.Errors;
this.Specials = parser.Lexer.SpecialTracker.RetrieveSpecials();
this.SnippetType = SnippetType.Expression;
result = expression;
}
}
if (this.Errors.Count > 0)
{
parser = ParserFactory.CreateParser(language, new StringReader(code));
BlockStatement block = parser.ParseBlock();
if (block != null && parser.Errors.Count < this.Errors.Count)
{
this.Errors = parser.Errors;
this.Specials = parser.Lexer.SpecialTracker.RetrieveSpecials();
this.SnippetType = SnippetType.Statements;
result = block;
}
}
if (this.Errors.Count > 0)
{
parser = ParserFactory.CreateParser(language, new StringReader(code));
List <INode> members = parser.ParseTypeMembers();
if (members != null && members.Count > 0 && parser.Errors.Count < this.Errors.Count)
{
this.Errors = parser.Errors;
this.Specials = parser.Lexer.SpecialTracker.RetrieveSpecials();
this.SnippetType = SnippetType.TypeMembers;
result = new NodeListNode(members);
result.StartLocation = members[0].StartLocation;
result.EndLocation = members[members.Count - 1].EndLocation;
}
}
Debug.Assert(result is CompilationUnit || !result.StartLocation.IsEmpty);
Debug.Assert(result is CompilationUnit || !result.EndLocation.IsEmpty);
return(result);
}
