private bool ParseModelStatement(CodeBlockInfo block)
        {
            var currentLocation    = this.CurrentLocation;
            var acceptedCharacters = this.RequireSingleWhiteSpace() ? AcceptedCharacters.None : AcceptedCharacters.Any;

            this.End(MetaCodeSpan.Create(this.Context, false, acceptedCharacters));

            if (this.modelStatementFound)
            {
                this.OnError(currentLocation, string.Format(CultureInfo.CurrentCulture, "Only one @model statement is allowed."));
            }

            this.modelStatementFound = true;
            this.Context.AcceptWhiteSpace(false);
            string modelTypeName = null;

            if (ParserHelpers.IsIdentifierStart(this.CurrentCharacter))
            {
                using (this.Context.StartTemporaryBuffer())
                {
                    this.Context.AcceptUntil(c => ParserHelpers.IsNewLine(c));
                    modelTypeName = this.Context.ContentBuffer.ToString();
                    this.Context.AcceptTemporaryBuffer();
                }
                this.Context.AcceptNewLine();
            }
            else
            {
                this.OnError(currentLocation, string.Format(CultureInfo.CurrentCulture, "@model must be followed by a type name."));
            }

            this.CheckForInheritsAndModelStatements();
            this.End(new ModelSpan(this.Context, modelTypeName));
            return(false);
        }
 private bool IsIdentifierStart()
 {
     if (CurrentCharacter == '_')
     {
         // VB Spec §2.2:
         //  If an identifier begins with an underscore, it must contain at least one other valid identifier character to disambiguate it from a line continuation.
         return(ParserHelpers.IsIdentifierPart(Peek()));
     }
     if (CurrentCharacter == '[')
     {
         return(ParserHelpers.IsIdentifierPart(Peek()));
     }
     return(ParserHelpers.IsIdentifierStart(CurrentCharacter));
 }
Exemplo n.º 3
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        /// <summary>
        /// Parses the modeltype statement.
        /// </summary>
        /// <param name="block">The code block.</param>
        public bool ParseModelTypeStatement(CodeBlockInfo block)
        {
            Contract.Requires(block != null);

            using (StartBlock(BlockType.Directive))
            {
                block.ResumeSpans(Context);

                SourceLocation location       = CurrentLocation;
                bool           readWhitespace = RequireSingleWhiteSpace();

                End(MetaCodeSpan.Create(Context, false, readWhitespace ? AcceptedCharacters.None : AcceptedCharacters.Any));

                if (_modelOrInheritsStatementFound)
                {
                    OnError(location, "The modeltype or inherits keywords can only appear once.");
                }

                _modelOrInheritsStatementFound = true;

                // Accept Whitespace up to the new line or non-whitespace character
                Context.AcceptWhiteSpace(false);

                string typeName = null;
                if (ParserHelpers.IsIdentifierStart(CurrentCharacter))
                {
                    using (Context.StartTemporaryBuffer())
                    {
                        Context.AcceptUntil(ParserHelpers.IsNewLine);
                        typeName = Context.ContentBuffer.ToString();
                        Context.AcceptTemporaryBuffer();
                    }
                    Context.AcceptNewLine();
                }
                else
                {
                    OnError(location, "Expected model identifier.");
                }
                End(new ModelSpan(Context, typeName));
            }
            return(false);
        }
Exemplo n.º 4
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        private bool ParseModelStatement(CodeBlockInfo block)
        {
            using (StartBlock(BlockType.Directive)) {
                block.ResumeSpans(Context);

                SourceLocation endModelLocation = CurrentLocation;
                bool           readWhitespace   = RequireSingleWhiteSpace();

                End(MetaCodeSpan.Create(Context, hidden: false, acceptedCharacters: readWhitespace ? AcceptedCharacters.None : AcceptedCharacters.Any));

                if (_modelStatementFound)
                {
                    OnError(endModelLocation, String.Format(CultureInfo.CurrentCulture, MvcResources.MvcRazorCodeParser_OnlyOneModelStatementIsAllowed, ModelTypeKeyword));
                }

                _modelStatementFound = true;

                // Accept Whitespace up to the new line or non-whitespace character
                Context.AcceptWhiteSpace(includeNewLines: false);

                string typeName = null;
                if (ParserHelpers.IsIdentifierStart(CurrentCharacter))
                {
                    using (Context.StartTemporaryBuffer()) {
                        Context.AcceptUntil(c => ParserHelpers.IsNewLine(c));
                        typeName = Context.ContentBuffer.ToString();
                        Context.AcceptTemporaryBuffer();
                    }
                    Context.AcceptNewLine();
                }
                else
                {
                    OnError(endModelLocation, String.Format(CultureInfo.CurrentCulture, MvcResources.MvcRazorCodeParser_ModelKeywordMustBeFollowedByTypeName, ModelTypeKeyword));
                }
                CheckForInheritsAndModelStatements();
                End(new ModelSpan(Context, typeName));
            }
            return(false);
        }
Exemplo n.º 5
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        /// <summary>
        /// Parses the model statement.
        /// </summary>
        /// <param name="block">The code block.</param>
        private bool ParseModelStatement(CodeBlockInfo block)
        {
            var location = CurrentLocation;

            bool readWhiteSpace = RequireSingleWhiteSpace();

            End(MetaCodeSpan.Create(Context, false, readWhiteSpace ? AcceptedCharacters.None : AcceptedCharacters.Any));

            if (_modelOrInheritsStatementFound)
            {
                OnError(location, "The model or inherits keywords can only appear once.");
            }

            _modelOrInheritsStatementFound = true;

            Context.AcceptWhiteSpace(false);

            string typeName = null;

            if (ParserHelpers.IsIdentifierStart(CurrentCharacter))
            {
                using (Context.StartTemporaryBuffer())
                {
                    Context.AcceptUntil(ParserHelpers.IsNewLine);
                    typeName = Context.ContentBuffer.ToString();
                    Context.AcceptTemporaryBuffer();
                }
                Context.AcceptNewLine();
            }
            else
            {
                OnError(location, "Expected model identifier.");
            }
            End(new ModelSpan(Context, typeName));
            return(false);
        }
        private bool ParseResourceStatement(CodeBlockInfo block)
        {
            End(MetaCodeSpan.Create);

            SourceLocation endModelLocation = CurrentLocation;

            if (_modelStatementFound)
            {
                OnError(endModelLocation, String.Format(CultureInfo.CurrentCulture, "Only one '{0}' statement is allowed in a file.", ResourceKeyword));
            }

            _modelStatementFound = true;

            // Accept Whitespace up to the new line or non-whitespace character
            Context.AcceptWhiteSpace(false);

            string typeName = null;

            if (ParserHelpers.IsIdentifierStart(CurrentCharacter))
            {
                using (Context.StartTemporaryBuffer())
                {
                    // Accept a dotted-identifier, but allow <>
                    AcceptTypeName();
                    typeName = Context.ContentBuffer.ToString();
                    Context.AcceptTemporaryBuffer();
                }
            }
            else
            {
                OnError(endModelLocation, String.Format(CultureInfo.CurrentCulture, "The '{0}' keyword must be followed by a type name on the same line.", ResourceKeyword));
            }
            CheckForInheritsAndResourceStatements();
            End(ResourceSpan.Create(Context, typeName));
            return(false);
        }