/// <summary>
/// Parses the Tokens into a Document.
/// </summary>
/// <param name="tokens">The tokens.</param>
/// <param name="options">The options.</param>
/// <returns></returns>
internal static IDocumentItem Parse(Queue <TokenPair> tokens, ParserOptions options)
{
var buildStack = new Stack <FormattingScope>();
//instead of recursive calling the parse function we stack the current document
buildStack.Push(new FormattingScope(new MorestachioDocument(), false));
while (tokens.Any())
{
var currentToken = tokens.Dequeue();
var currentDocumentItem = buildStack.Peek(); //get the latest document
if (currentToken.Type == TokenType.Comment)
{
//just ignore this part and print nothing
}
else if (currentToken.Type == TokenType.Content)
{
currentDocumentItem.Item1.Add(new ContentDocumentItem(currentToken.Value)
{
ExpressionStart = currentToken.TokenLocation
});
}
else if (currentToken.Type == TokenType.CollectionOpen)
{
var nestedDocument = new CollectionDocumentItem(currentToken.Value)
{
ExpressionStart = currentToken.TokenLocation
};
buildStack.Push(new FormattingScope(nestedDocument, false));
currentDocumentItem.Item1.Add(nestedDocument);
}
else if (currentToken.Type == TokenType.ElementOpen)
{
var nestedDocument = new ExpressionScopeDocumentItem(currentToken.Value)
{
ExpressionStart = currentToken.TokenLocation
};
buildStack.Push(new FormattingScope(nestedDocument, false));
currentDocumentItem.Item1.Add(nestedDocument);
}
else if (currentToken.Type == TokenType.InvertedElementOpen)
{
var invertedScope = new InvertedExpressionScopeDocumentItem(currentToken.Value)
{
ExpressionStart = currentToken.TokenLocation
};
buildStack.Push(new FormattingScope(invertedScope, false));
currentDocumentItem.Item1.Add(invertedScope);
}
else if (currentToken.Type == TokenType.CollectionClose || currentToken.Type == TokenType.ElementClose)
{
// remove the last document from the stack and go back to the parents
buildStack.Pop();
if (buildStack.Peek().Item2) //is the remaining scope a formatting one. If it is pop it and return to its parent
{
buildStack.Pop();
}
}
else if (currentToken.Type == TokenType.PrintFormatted)
{
currentDocumentItem.Item1.Add(new PrintFormattedItem());
buildStack.Pop(); //Print formatted can only be followed by a Format and if not the parser should have not emited it
}
else if (currentToken.Type == TokenType.Format)
{
if (buildStack.Peek().Item2)
{
buildStack.Pop();
}
var formatterItem = new IsolatedContextDocumentItem()
{
ExpressionStart = currentToken.TokenLocation
};
buildStack.Push(new FormattingScope(formatterItem, true));
formatterItem.Add(new CallFormatterDocumentItem(currentToken.FormatString, currentToken.Value));
currentDocumentItem.Item1.Add(formatterItem);
}
else if (currentToken.Type == TokenType.EscapedSingleValue ||
currentToken.Type == TokenType.UnescapedSingleValue)
{
currentDocumentItem.Item1.Add(new PathDocumentItem(currentToken.Value,
currentToken.Type == TokenType.EscapedSingleValue)
{
ExpressionStart = currentToken.TokenLocation
});
}
else if (currentToken.Type == TokenType.PartialDeclarationOpen)
{
// currently same named partials will override each other
// to allow recursive calls of partials we first have to declare the partial and then load it as we would parse
// -the partial as a whole and then add it to the list would lead to unknown calls of partials inside the partial
var nestedDocument = new MorestachioDocument();
buildStack.Push(new FormattingScope(nestedDocument, false));
currentDocumentItem.Item1.Add(new PartialDocumentItem(currentToken.Value, nestedDocument)
{
ExpressionStart = currentToken.TokenLocation
});
}
else if (currentToken.Type == TokenType.PartialDeclarationClose)
{
currentDocumentItem.Item1.Add(new RenderPartialDoneDocumentItem(currentToken.Value)
{
ExpressionStart = currentToken.TokenLocation
});
buildStack.Pop();
}
else if (currentToken.Type == TokenType.RenderPartial)
{
currentDocumentItem.Item1.Add(new RenderPartialDocumentItem(currentToken.Value)
{
ExpressionStart = currentToken.TokenLocation
});
}
}
if (buildStack.Count != 1)
{
//var invalidScopedElements = buildStack
//throw new MorestachioSyntaxError(new Tokenizer.CharacterLocation(){Character = }, );
throw new InvalidOperationException("There is an Error with the Parser. The Parser still contains unscoped builds: " + buildStack.Select(e => e.Item1.Kind).Aggregate((e, f) => e + ", " + f));
}
return(buildStack.Pop().Item1);
}
internal MorestachioDocumentInfo([NotNull] ParserOptions options, [CanBeNull] IDocumentItem document, [CanBeNull] IEnumerable <IMorestachioError> errors)
{
ParserOptions = options ?? throw new ArgumentNullException(nameof(options));
Document = document;
Errors = errors ?? Enumerable.Empty <IMorestachioError>();
}
public static IEnumerable <TokenPair> Tokenize(ParserOptions parserOptions)
{
var templateString = parserOptions.Template ?? "";
var matches = TokenFinder.Matches(templateString);
var scopestack = new Stack <Tuple <string, int> >();
var idx = 0;
var parseErrors = new List <IndexedParseException>();
var lines = new List <int>();
foreach (Match m in matches)
{
//yield front content.
if (m.Index > idx)
{
yield return(new TokenPair(TokenType.Content, templateString.Substring(idx, m.Index - idx)));
}
if (m.Value.StartsWith("{{#each"))
{
scopestack.Push(Tuple.Create(m.Value, m.Index));
var token = m.Value.TrimStart('{').TrimEnd('}').TrimStart('#').Trim();
token = token.Substring(4);
if (token.StartsWith(" ") && token.Trim() != "")
{
token = token.Trim();
if (FormatInExpressionFinder.IsMatch(token))
{
foreach (var tokenizeFormattable in TokenizeFormattables(token, templateString, m, lines,
parseErrors))
{
yield return(tokenizeFormattable);
}
yield return(new TokenPair(TokenType.CollectionOpen, "."));
}
else
{
yield return(new TokenPair(TokenType.CollectionOpen,
Validated(token, templateString, m.Index, lines, parseErrors).Trim()));
}
}
else
{
var location = HumanizeCharacterLocation(templateString, m.Index, lines);
parseErrors.Add(new IndexedParseException(location,
@"The 'each' block being opened requires a model path to be specified in the form '{{{{#each <name>}}}}'."));
}
}
else if (m.Value.StartsWith("{{/each"))
{
if (m.Value != "{{/each}}")
{
var location = HumanizeCharacterLocation(templateString, m.Index, lines);
parseErrors.Add(new IndexedParseException(location,
@"The syntax to close the 'each' block should be: '{{{{/each}}}}'."));
}
else if (scopestack.Any() && scopestack.Peek().Item1.StartsWith("{{#each"))
{
var token = scopestack.Pop().Item1;
yield return(new TokenPair(TokenType.CollectionClose, token));
}
else
{
var location = HumanizeCharacterLocation(templateString, m.Index, lines);
parseErrors.Add(new IndexedParseException(location,
@"An 'each' block is being closed, but no corresponding opening element ('{{{{#each <name>}}}}') was detected."));
}
}
else if (m.Value.StartsWith("{{#"))
{
//open group
var token = m.Value.TrimStart('{').TrimEnd('}').TrimStart('#').Trim();
if (scopestack.Any() && scopestack.Peek().Item1 == token)
{
yield return(new TokenPair(TokenType.ElementClose,
Validated(token, templateString, m.Index, lines, parseErrors)));
}
else
{
scopestack.Push(Tuple.Create(token, m.Index));
}
yield return(new TokenPair(TokenType.ElementOpen,
Validated(token, templateString, m.Index, lines, parseErrors)));
}
else if (m.Value.StartsWith("{{^"))
{
//open inverted group
var token = m.Value.TrimStart('{').TrimEnd('}').TrimStart('^').Trim();
if (scopestack.Any() && scopestack.Peek().Item1 == token)
{
yield return(new TokenPair(TokenType.ElementClose,
Validated(token, templateString, m.Index, lines, parseErrors)));
}
else
{
scopestack.Push(Tuple.Create(token, m.Index));
}
yield return(new TokenPair(TokenType.InvertedElementOpen,
Validated(token, templateString, m.Index, lines, parseErrors)));
}
else if (m.Value.StartsWith("{{/"))
{
var token = m.Value.TrimStart('{').TrimEnd('}').TrimStart('/').Trim();
//close group
if (scopestack.Any() && scopestack.Peek().Item1 == token)
{
scopestack.Pop();
yield return(new TokenPair(TokenType.ElementClose,
Validated(token, templateString, m.Index, lines, parseErrors)));
}
else
{
var location = HumanizeCharacterLocation(templateString, m.Index, lines);
parseErrors.Add(new IndexedParseException(location,
"It appears that open and closing elements are mismatched."));
}
}
else if (m.Value.StartsWith("{{{") | m.Value.StartsWith("{{&"))
{
//escaped single element
var token = m.Value.TrimStart('{').TrimEnd('}').TrimStart('&').Trim();
yield return(new TokenPair(TokenType.UnescapedSingleValue,
Validated(token, templateString, m.Index, lines, parseErrors)));
}
else if (m.Value.StartsWith("{{!"))
{
//it's a comment drop this on the floor, no need to even yield it.
}
else
{
//unsingle value.
var token = m.Value.TrimStart('{').TrimEnd('}').Trim();
if (FormatInExpressionFinder.IsMatch(token))
{
foreach (var tokenizeFormattable in TokenizeFormattables(token, templateString, m, lines,
parseErrors))
{
yield return(tokenizeFormattable);
}
yield return(new TokenPair(TokenType.PrintFormatted, "."));
}
else
{
yield return(new TokenPair(TokenType.EscapedSingleValue,
Validated(token, templateString, m.Index, lines, parseErrors)));
}
}
//move forward in the string.
idx = m.Index + m.Length;
}
if (idx < templateString.Length)
{
yield return(new TokenPair(TokenType.Content, templateString.Substring(idx)));
}
#region Assert that any scopes opened must be closed.
if (scopestack.Any())
{
var scopes = scopestack.Select(k =>
{
var value = k.Item1.Trim('{', '#', '}');
if (value.StartsWith("each "))
{
value = value.Substring(5);
}
return(new
{
scope = value,
location = HumanizeCharacterLocation(templateString, k.Item2, lines)
});
}).Reverse()
.ToArray();
parseErrors.AddRange(scopes.Select(unclosedScope => new IndexedParseException(unclosedScope.location,
"A scope block to the following path was opened but not closed: '{0}', please close it using the appropriate syntax.",
unclosedScope.scope)));
}
#endregion
//We want to throw an aggregate template exception, but in due time.
if (!parseErrors.Any())
{
yield break;
}
var innerExceptions = parseErrors.OrderBy(k => k.LineNumber).ThenBy(k => k.CharacterOnLine).ToArray();
throw new AggregateException(innerExceptions);
}
/// <summary>
/// Parses the Tokens into a Document.
/// </summary>
/// <param name="tokenizerResult">The result of an Tokenizer.Tokenize call.</param>
/// <param name="options">The ParserOptions</param>
/// <returns></returns>
public static IDocumentItem Parse(TokenizerResult tokenizerResult, ParserOptions options)
{
var buildStack = new Stack <DocumentScope>();
//this is the scope id that determines a scope that is using let or alias variables
int variableScope = 1;
var getScope = new Func <int>(() => variableScope++);
//instead of recursive calling the parse function we stack the current document
buildStack.Push(new DocumentScope(new MorestachioDocument(), () => 0));
DocumentScope GetVariabeScope()
{
return(buildStack.FirstOrDefault(e => e.VariableScopeNumber != -1));
}
foreach (var currentToken in tokenizerResult.Tokens)
{
var currentDocumentItem = buildStack.Peek(); //get the latest document
if (currentToken.Type.Equals(TokenType.Content))
{
currentDocumentItem.Document.Add(new ContentDocumentItem(currentToken.Value)
{
ExpressionStart = currentToken.TokenLocation
});
}
else if (currentToken.Type.Equals(TokenType.If))
{
var nestedDocument = new IfExpressionScopeDocumentItem(currentToken.MorestachioExpression)
{
ExpressionStart = currentToken.TokenLocation
};
buildStack.Push(new DocumentScope(nestedDocument, getScope));
currentDocumentItem.Document.Add(nestedDocument);
}
else if (currentToken.Type.Equals(TokenType.IfNot))
{
var nestedDocument = new IfNotExpressionScopeDocumentItem(currentToken.MorestachioExpression)
{
ExpressionStart = currentToken.TokenLocation
};
buildStack.Push(new DocumentScope(nestedDocument, getScope));
currentDocumentItem.Document.Add(nestedDocument);
}
else if (currentToken.Type.Equals(TokenType.Else))
{
var nestedDocument = new ElseExpressionScopeDocumentItem()
{
ExpressionStart = currentToken.TokenLocation
};
buildStack.Push(new DocumentScope(nestedDocument, getScope));
currentDocumentItem.Document.Add(nestedDocument);
}
else if (currentToken.Type.Equals(TokenType.CollectionOpen))
{
var nestedDocument = new EachDocumentItem(currentToken.MorestachioExpression)
{
ExpressionStart = currentToken.TokenLocation
};
buildStack.Push(new DocumentScope(nestedDocument, getScope));
currentDocumentItem.Document.Add(nestedDocument);
}
else if (currentToken.Type.Equals(TokenType.WhileLoopOpen))
{
var nestedDocument = new WhileLoopDocumentItem(currentToken.MorestachioExpression)
{
ExpressionStart = currentToken.TokenLocation
};
buildStack.Push(new DocumentScope(nestedDocument, getScope));
currentDocumentItem.Document.Add(nestedDocument);
}
else if (currentToken.Type.Equals(TokenType.DoLoopOpen))
{
var nestedDocument = new DoLoopDocumentItem(currentToken.MorestachioExpression)
{
ExpressionStart = currentToken.TokenLocation
};
buildStack.Push(new DocumentScope(nestedDocument, getScope));
currentDocumentItem.Document.Add(nestedDocument);
}
else if (currentToken.Type.Equals(TokenType.ElementOpen))
{
var nestedDocument = new ExpressionScopeDocumentItem(currentToken.MorestachioExpression)
{
ExpressionStart = currentToken.TokenLocation
};
buildStack.Push(new DocumentScope(nestedDocument, getScope));
currentDocumentItem.Document.Add(nestedDocument);
}
else if (currentToken.Type.Equals(TokenType.RepeatLoopOpen))
{
var nestedDocument = new RepeatDocumentItem(currentToken.MorestachioExpression)
{
ExpressionStart = currentToken.TokenLocation
};
buildStack.Push(new DocumentScope(nestedDocument, getScope));
currentDocumentItem.Document.Add(nestedDocument);
}
else if (currentToken.Type.Equals(TokenType.InvertedElementOpen))
{
var invertedScope = new InvertedExpressionScopeDocumentItem(currentToken.MorestachioExpression)
{
ExpressionStart = currentToken.TokenLocation
};
buildStack.Push(new DocumentScope(invertedScope, getScope));
currentDocumentItem.Document.Add(invertedScope);
}
else if (currentToken.Type.Equals(TokenType.CollectionClose) ||
currentToken.Type.Equals(TokenType.ElementClose) ||
currentToken.Type.Equals(TokenType.IfClose) ||
currentToken.Type.Equals(TokenType.ElseClose) ||
currentToken.Type.Equals(TokenType.WhileLoopClose) ||
currentToken.Type.Equals(TokenType.DoLoopClose) ||
currentToken.Type.Equals(TokenType.RepeatLoopClose))
{
DocumentScope scope = buildStack.Peek();
if (scope.HasAlias) //are we in a alias then remove it
{
foreach (var scopeLocalVariable in scope.LocalVariables)
{
currentDocumentItem.Document.Add(new RemoveAliasDocumentItem(scopeLocalVariable, scope.VariableScopeNumber));
}
}
// remove the last document from the stack and go back to the parents
buildStack.Pop();
}
else if (currentToken.Type.Equals(TokenType.EscapedSingleValue) ||
currentToken.Type.Equals(TokenType.UnescapedSingleValue))
{
currentDocumentItem.Document.Add(new PathDocumentItem(currentToken.MorestachioExpression,
currentToken.Type.Equals(TokenType.EscapedSingleValue))
{
ExpressionStart = currentToken.TokenLocation
});
}
else if (currentToken.Type.Equals(TokenType.PartialDeclarationOpen))
{
// currently same named partials will override each other
// to allow recursive calls of partials we first have to declare the partial and then load it as we would parse
// -the partial as a whole and then add it to the list would lead to unknown calls of partials inside the partial
var nestedDocument = new MorestachioDocument();
buildStack.Push(new DocumentScope(nestedDocument, getScope));
currentDocumentItem.Document.Add(new PartialDocumentItem(currentToken.Value, nestedDocument)
{
ExpressionStart = currentToken.TokenLocation
});
}
else if (currentToken.Type.Equals(TokenType.PartialDeclarationClose))
{
buildStack.Pop();
}
else if (currentToken.Type.Equals(TokenType.RenderPartial))
{
currentDocumentItem.Document.Add(new RenderPartialDocumentItem(currentToken.Value, currentToken.MorestachioExpression)
{
ExpressionStart = currentToken.TokenLocation,
});
}
else if (currentToken.Type.Equals(TokenType.Alias))
{
var scope = GetVariabeScope();
var aliasDocumentItem = new AliasDocumentItem(currentToken.Value, scope.VariableScopeNumber)
{
ExpressionStart = currentToken.TokenLocation
};
currentDocumentItem.Document.Add(aliasDocumentItem);
currentDocumentItem.LocalVariables.Add(currentToken.Value);
}
else if (currentToken.Type.Equals(TokenType.VariableVar))
{
var evaluateVariableDocumentItem = new EvaluateVariableDocumentItem(currentToken.Value,
currentToken.MorestachioExpression);
currentDocumentItem.Document.Add(evaluateVariableDocumentItem);
}
else if (currentToken.Type.Equals(TokenType.WriteLineBreak))
{
currentDocumentItem.Document.Add(new TextEditDocumentItem(new AppendLineBreakTextOperation()));
}
else if (currentToken.Type.Equals(TokenType.TrimLineBreak))
{
currentDocumentItem.Document.Add(new TextEditDocumentItem(new TrimLineBreakTextOperation()
{
LineBreaks = 1
}));
}
else if (currentToken.Type.Equals(TokenType.TrimLineBreaks))
{
currentDocumentItem.Document.Add(new TextEditDocumentItem(new TrimLineBreakTextOperation()
{
LineBreaks = -1
}));
}
else if (currentToken.Type.Equals(TokenType.TrimEverything))
{
currentDocumentItem.Document.Add(new TextEditDocumentItem(new TrimAllWhitespacesTextOperation()));
}
else if (currentToken.Type.Equals(TokenType.VariableLet))
{
var scope = 0;
if (buildStack.Count > 1)
{
scope = GetVariabeScope()
.VariableScopeNumber;
}
var evaluateVariableDocumentItem = new EvaluateVariableDocumentItem(currentToken.Value,
currentToken.MorestachioExpression, scope);
currentDocumentItem.Document.Add(evaluateVariableDocumentItem);
if (buildStack.Count > 1)
{
currentDocumentItem.LocalVariables.Add(currentToken.Value);
}
}
else if (currentToken.Type.Equals(TokenType.Comment) || currentToken.Type.Equals(TokenType.BlockComment))
{
//just ignore this part and print nothing
}
else
{
var customDocumentItemProvider =
options.CustomDocumentItemProviders.FirstOrDefault(e => e.ShouldParse(currentToken, options));
var documentItem = customDocumentItemProvider?.Parse(currentToken, options, buildStack, getScope);
if (documentItem != null)
{
currentDocumentItem.Document.Add(documentItem);
}
}
}
if (buildStack.Count != 1)
{
//var invalidScopedElements = buildStack
//throw new MorestachioSyntaxError(new Tokenizer.CharacterLocation(){Character = }, );
throw new InvalidOperationException(
"There is an Error with the Parser. The Parser still contains unscoped builds: " +
buildStack.Select(e => e.Document.GetType().Name).Aggregate((e, f) => e + ", " + f));
}
return(buildStack.Pop().Document);
}
/// <summary>
/// Initializes a new instance of the <see cref="MorestachioDocumentInfo"/> class.
/// </summary>
/// <param name="options">The options.</param>
/// <param name="document">The document.</param>
public MorestachioDocumentInfo([NotNull] ParserOptions options, [NotNull] IDocumentItem document)
: this(options, document ?? throw new ArgumentNullException(nameof(document)), null)
{
}
public async Task <MorestachioDocumentResult> CreateAsync([NotNull] object data, CancellationToken token)
{
if (Errors.Any())
{
throw new AggregateException("You cannot Create this Template as there are one or more Errors. See Inner Exception for more infos.", Errors.Select(e => e.GetException())).Flatten();
}
if (Document is MorestachioDocument morestachioDocument && morestachioDocument.MorestachioVersion !=
MorestachioDocument.GetMorestachioVersion())
{
throw new InvalidOperationException($"The supplied version in the Morestachio document " +
$"'{morestachioDocument.MorestachioVersion}'" +
$" is not compatible with the current morestachio version of " +
$"'{MorestachioDocument.GetMorestachioVersion()}'");
}
var timeoutCancellation = new CancellationTokenSource();
if (ParserOptions.Timeout != TimeSpan.Zero)
{
timeoutCancellation.CancelAfter(ParserOptions.Timeout);
var anyCancellationToken = CancellationTokenSource.CreateLinkedTokenSource(token, timeoutCancellation.Token);
token = anyCancellationToken.Token;
}
var sourceStream = ParserOptions.SourceFactory();
try
{
if (sourceStream == null)
{
throw new NullReferenceException("The created stream is null.");
}
if (!sourceStream.CanWrite)
{
throw new InvalidOperationException($"The stream '{sourceStream.GetType()}' is ReadOnly.");
}
using (var byteCounterStream = new ByteCounterStream(sourceStream,
ParserOptions.Encoding, BufferSize, true, ParserOptions))
{
var context = new ContextObject(ParserOptions, "", null)
{
Value = data,
CancellationToken = token
};
using (var scopeData = new ScopeData())
{
await MorestachioDocument.ProcessItemsAndChildren(new[] { Document }, byteCounterStream,
context, scopeData);
}
}
if (timeoutCancellation.IsCancellationRequested)
{
sourceStream.Dispose();
throw new TimeoutException($"The requested timeout of '{ParserOptions.Timeout:g}' for report generation was reached.");
}
}
catch
{
//If there is any exception while generating the template we must dispose any data written to the stream as it will never returned and might
//create a memory leak with this. This is also true for a timeout
sourceStream?.Dispose();
throw;
}
return(new MorestachioDocumentResult()
{
Stream = sourceStream
});
}
public static MorestachioDocumentInfo ParseWithOptions([NotNull] ParserOptions parsingOptions)
{
return(ParseWithOptionsAsync(parsingOptions).Result);
}
/// <summary>
/// Parses the Tokens into a Document.
/// </summary>
/// <param name="tokens">The tokens.</param>
/// <returns></returns>
internal static IDocumentItem Parse(Queue <TokenPair> tokens, ParserOptions options)
{
var buildStack = new Stack <DocumentScope>();
//instead of recursive calling the parse function we stack the current document
buildStack.Push(new DocumentScope(new MorestachioDocument()));
while (tokens.Any())
{
var currentToken = tokens.Dequeue();
var currentDocumentItem = buildStack.Peek(); //get the latest document
if (currentToken.Type.Equals(TokenType.Comment))
{
//just ignore this part and print nothing
}
else if (currentToken.Type.Equals(TokenType.Content))
{
currentDocumentItem.Document.Add(new ContentDocumentItem(currentToken.Value)
{
ExpressionStart = currentToken.TokenLocation
});
}
else if (currentToken.Type.Equals(TokenType.If))
{
var nestedDocument = new IfExpressionScopeDocumentItem(currentToken.MorestachioExpression)
{
ExpressionStart = currentToken.TokenLocation
};
buildStack.Push(new DocumentScope(nestedDocument));
currentDocumentItem.Document.Add(nestedDocument);
}
else if (currentToken.Type.Equals(TokenType.IfNot))
{
var nestedDocument = new IfNotExpressionScopeDocumentItem(currentToken.MorestachioExpression)
{
ExpressionStart = currentToken.TokenLocation
};
buildStack.Push(new DocumentScope(nestedDocument));
currentDocumentItem.Document.Add(nestedDocument);
}
else if (currentToken.Type.Equals(TokenType.Else))
{
var nestedDocument = new ElseExpressionScopeDocumentItem()
{
ExpressionStart = currentToken.TokenLocation
};
buildStack.Push(new DocumentScope(nestedDocument));
currentDocumentItem.Document.Add(nestedDocument);
}
else if (currentToken.Type.Equals(TokenType.CollectionOpen))
{
var nestedDocument = new EachDocumentItem(currentToken.MorestachioExpression)
{
ExpressionStart = currentToken.TokenLocation
};
buildStack.Push(new DocumentScope(nestedDocument));
currentDocumentItem.Document.Add(nestedDocument);
}
else if (currentToken.Type.Equals(TokenType.WhileLoopOpen))
{
var nestedDocument = new WhileLoopDocumentItem(currentToken.MorestachioExpression)
{
ExpressionStart = currentToken.TokenLocation
};
buildStack.Push(new DocumentScope(nestedDocument));
currentDocumentItem.Document.Add(nestedDocument);
}
else if (currentToken.Type.Equals(TokenType.DoLoopOpen))
{
var nestedDocument = new DoLoopDocumentItem(currentToken.MorestachioExpression)
{
ExpressionStart = currentToken.TokenLocation
};
buildStack.Push(new DocumentScope(nestedDocument));
currentDocumentItem.Document.Add(nestedDocument);
}
else if (currentToken.Type.Equals(TokenType.ElementOpen))
{
var nestedDocument = new ExpressionScopeDocumentItem(currentToken.MorestachioExpression)
{
ExpressionStart = currentToken.TokenLocation
};
buildStack.Push(new DocumentScope(nestedDocument));
currentDocumentItem.Document.Add(nestedDocument);
}
else if (currentToken.Type.Equals(TokenType.InvertedElementOpen))
{
var invertedScope = new InvertedExpressionScopeDocumentItem(currentToken.MorestachioExpression)
{
ExpressionStart = currentToken.TokenLocation
};
buildStack.Push(new DocumentScope(invertedScope));
currentDocumentItem.Document.Add(invertedScope);
}
else if (currentToken.Type.Equals(TokenType.CollectionClose) ||
currentToken.Type.Equals(TokenType.ElementClose) ||
currentToken.Type.Equals(TokenType.IfClose) ||
currentToken.Type.Equals(TokenType.ElseClose) ||
currentToken.Type.Equals(TokenType.WhileLoopClose) ||
currentToken.Type.Equals(TokenType.DoLoopClose))
{
if (buildStack.Peek().HasAlias) //are we in a alias then remove it
{
currentDocumentItem.Document.Add(new RemoveAliasDocumentItem(buildStack.Peek().AliasName));
buildStack.Pop();
}
// remove the last document from the stack and go back to the parents
buildStack.Pop();
}
else if (currentToken.Type.Equals(TokenType.EscapedSingleValue) ||
currentToken.Type.Equals(TokenType.UnescapedSingleValue))
{
currentDocumentItem.Document.Add(new PathDocumentItem(currentToken.MorestachioExpression,
currentToken.Type.Equals(TokenType.EscapedSingleValue))
{
ExpressionStart = currentToken.TokenLocation
});
}
else if (currentToken.Type.Equals(TokenType.PartialDeclarationOpen))
{
// currently same named partials will override each other
// to allow recursive calls of partials we first have to declare the partial and then load it as we would parse
// -the partial as a whole and then add it to the list would lead to unknown calls of partials inside the partial
var nestedDocument = new MorestachioDocument();
buildStack.Push(new DocumentScope(nestedDocument));
currentDocumentItem.Document.Add(new PartialDocumentItem(currentToken.Value, nestedDocument)
{
ExpressionStart = currentToken.TokenLocation
});
}
else if (currentToken.Type.Equals(TokenType.PartialDeclarationClose))
{
currentDocumentItem.Document.Add(new RenderPartialDoneDocumentItem(currentToken.Value)
{
ExpressionStart = currentToken.TokenLocation
});
buildStack.Pop();
}
else if (currentToken.Type.Equals(TokenType.RenderPartial))
{
currentDocumentItem.Document.Add(new RenderPartialDocumentItem(currentToken.Value)
{
ExpressionStart = currentToken.TokenLocation
});
}
else if (currentToken.Type.Equals(TokenType.Alias))
{
var aliasDocumentItem = new AliasDocumentItem(currentToken.Value)
{
ExpressionStart = currentToken.TokenLocation
};
currentDocumentItem.Document.Add(aliasDocumentItem);
buildStack.Push(new DocumentScope(aliasDocumentItem, currentToken.Value));
}
else if (currentToken.Type.Equals(TokenType.VariableDeclaration))
{
var evaluateVariableDocumentItem = new EvaluateVariableDocumentItem(currentToken.Value, currentToken.MorestachioExpression);
currentDocumentItem.Document.Add(evaluateVariableDocumentItem);
}
else
{
var customDocumentItemProvider =
options.CustomDocumentItemProviders.FirstOrDefault(e => e.ShouldParse(currentToken, options));
if (customDocumentItemProvider != null)
{
var documentItem = customDocumentItemProvider.Parse(currentToken, options, buildStack);
currentDocumentItem.Document.Add(documentItem);
}
}
}
if (buildStack.Count != 1)
{
//var invalidScopedElements = buildStack
//throw new MorestachioSyntaxError(new Tokenizer.CharacterLocation(){Character = }, );
throw new InvalidOperationException(
"There is an Error with the Parser. The Parser still contains unscoped builds: " +
buildStack.Select(e => e.Document.Kind).Aggregate((e, f) => e + ", " + f));
}
return(buildStack.Pop().Document);
}
/// <summary>
/// Parses the Tokens into a Document.
/// </summary>
/// <param name="tokenizerResult">The result of an Tokenizer.Tokenize call.</param>
/// <param name="options">The ParserOptions</param>
/// <returns></returns>
public static IDocumentItem Parse(TokenizerResult tokenizerResult, ParserOptions options)
{
var buildStack = new Stack <DocumentScope>();
//this is the scope id that determines a scope that is using let or alias variables
int variableScope = 1;
var getScope = new Func <int>(() => variableScope++);
//instead of recursive calling the parse function we stack the current document
buildStack.Push(new DocumentScope(new MorestachioDocument(), () => 0));
var textEdits = new List <TextEditDocumentItem>();
DocumentScope GetVariableScope()
{
return(buildStack.FirstOrDefault(e => e.VariableScopeNumber != -1));
}
IEnumerable <ITokenOption> GetPublicOptions(TokenPair token)
{
var publicOptions = token.TokenOptions?.Where(e => e.Persistent).ToArray();
return(publicOptions?.Length > 0 ? publicOptions : null);
}
bool TryAdd(IDocumentItem document, IDocumentItem child)
{
if (document is IBlockDocumentItem block)
{
block.Add(child);
return(true);
}
return(false);
}
void CloseScope(Stack <DocumentScope> documentScopes, TokenPair currentToken, DocumentScope currentDocumentItem)
{
DocumentScope scope = documentScopes.Peek();
if (!(scope.Document is IBlockDocumentItem blockDocument))
{
throw new InvalidOperationException(
$"Closing an token '{currentToken.Type}' at '{currentToken.TokenLocation}'" +
$" that is not of type '{typeof(IBlockDocumentItem)}' is not possible.");
}
blockDocument.BlockClosingOptions = GetPublicOptions(currentToken);
if (scope.HasAlias) //are we in a alias then remove it
{
foreach (var scopeLocalVariable in scope.LocalVariables)
{
TryAdd(currentDocumentItem.Document, new RemoveAliasDocumentItem(currentToken.TokenLocation,
scopeLocalVariable,
scope.VariableScopeNumber, null));
}
}
// remove the last document from the stack and go back to the parents
documentScopes.Pop();
}
foreach (var currentToken in tokenizerResult)
{
var currentDocumentItem = buildStack.Peek(); //get the latest document
if (currentToken.Type.Equals(TokenType.Content))
{
var contentDocumentItem = new ContentDocumentItem(currentToken.TokenLocation, currentToken.Value, GetPublicOptions(currentToken));
TryAdd(currentDocumentItem.Document, contentDocumentItem);
if (tokenizerResult.Previous.HasValue)
{
if (tokenizerResult.Previous.Value.FindOption <bool>("Embedded.TrimTailing"))
{
TryAdd(contentDocumentItem, new TextEditDocumentItem(tokenizerResult.Previous.Value.TokenLocation, new TrimLineBreakTextOperation()
{
LineBreaks = 0,
LineBreakTrimDirection = LineBreakTrimDirection.Begin
}, EmbeddedInstructionOrigin.Previous, GetPublicOptions(currentToken)));
}
if (tokenizerResult.Previous.Value.FindOption <bool>("Embedded.TrimAllTailing"))
{
TryAdd(contentDocumentItem, new TextEditDocumentItem(tokenizerResult.Previous.Value.TokenLocation, new TrimLineBreakTextOperation()
{
LineBreaks = -1,
LineBreakTrimDirection = LineBreakTrimDirection.Begin
}, EmbeddedInstructionOrigin.Previous, GetPublicOptions(currentToken)));
}
}
if (tokenizerResult.Next.HasValue)
{
if (tokenizerResult.Next.Value.FindOption <bool>("Embedded.TrimLeading"))
{
TryAdd(contentDocumentItem, new TextEditDocumentItem(tokenizerResult.Next.Value.TokenLocation, new TrimLineBreakTextOperation()
{
LineBreaks = 0,
LineBreakTrimDirection = LineBreakTrimDirection.End
}, EmbeddedInstructionOrigin.Next, GetPublicOptions(currentToken)));
}
if (tokenizerResult.Next.Value.FindOption <bool>("Embedded.TrimAllLeading"))
{
TryAdd(contentDocumentItem, new TextEditDocumentItem(tokenizerResult.Next.Value.TokenLocation, new TrimLineBreakTextOperation()
{
LineBreaks = -1,
LineBreakTrimDirection = LineBreakTrimDirection.End
}, EmbeddedInstructionOrigin.Next, GetPublicOptions(currentToken)));
}
}
foreach (var textEditDocumentItem in textEdits)
{
TryAdd(contentDocumentItem, textEditDocumentItem);
}
textEdits.Clear();
}
else if (currentToken.Type.Equals(TokenType.If))
{
var nestedDocument = new IfExpressionScopeDocumentItem(currentToken.TokenLocation,
currentToken.MorestachioExpression, GetPublicOptions(currentToken), false);
buildStack.Push(new DocumentScope(nestedDocument, getScope));
TryAdd(currentDocumentItem.Document, nestedDocument);
}
else if (currentToken.Type.Equals(TokenType.IfNot))
{
var nestedDocument = new IfExpressionScopeDocumentItem(currentToken.TokenLocation,
currentToken.MorestachioExpression, GetPublicOptions(currentToken), true);
buildStack.Push(new DocumentScope(nestedDocument, getScope));
TryAdd(currentDocumentItem.Document, nestedDocument);
}
else if (currentToken.Type.Equals(TokenType.Else))
{
var nestedDocument = new ElseExpressionScopeDocumentItem(currentToken.TokenLocation, GetPublicOptions(currentToken));
buildStack.Push(new DocumentScope(nestedDocument, getScope));
if (currentDocumentItem.Document is IfExpressionScopeDocumentItem ifDocument)
{
ifDocument.Add(nestedDocument);
}
}
else if (currentToken.Type.Equals(TokenType.ElseIf))
{
var nestedDocument = new ElseIfExpressionScopeDocumentItem(currentToken.TokenLocation,
currentToken.MorestachioExpression,
GetPublicOptions(currentToken));
var documentScope = new DocumentScope(nestedDocument, getScope);
buildStack.Push(documentScope);
if (currentDocumentItem.Document is IfExpressionScopeDocumentItem ifDocument)
{
ifDocument.Add(nestedDocument);
}
//AddIfDocument(currentToken, documentScope);
}
else if (currentToken.Type.Equals(TokenType.CollectionOpen))
{
var nestedDocument = new EachDocumentItem(currentToken.TokenLocation, currentToken.MorestachioExpression, GetPublicOptions(currentToken));
buildStack.Push(new DocumentScope(nestedDocument, getScope));
TryAdd(currentDocumentItem.Document, nestedDocument);
}
else if (currentToken.Type.Equals(TokenType.SwitchOpen))
{
var nestedDocument = new SwitchDocumentItem(currentToken.TokenLocation,
currentToken.MorestachioExpression,
currentToken.FindOption <bool>("ScopeTo"), GetPublicOptions(currentToken));
buildStack.Push(new DocumentScope(nestedDocument, getScope));
TryAdd(currentDocumentItem.Document, nestedDocument);
}
else if (currentToken.Type.Equals(TokenType.SwitchCaseOpen))
{
var nestedDocument = new SwitchCaseDocumentItem(currentToken.TokenLocation, currentToken.MorestachioExpression, GetPublicOptions(currentToken));
buildStack.Push(new DocumentScope(nestedDocument, getScope));
TryAdd(currentDocumentItem.Document, nestedDocument);
}
else if (currentToken.Type.Equals(TokenType.SwitchDefaultOpen))
{
var nestedDocument = new SwitchDefaultDocumentItem(currentToken.TokenLocation, GetPublicOptions(currentToken));
buildStack.Push(new DocumentScope(nestedDocument, getScope));
TryAdd(currentDocumentItem.Document, nestedDocument);
}
else if (currentToken.Type.Equals(TokenType.WhileLoopOpen))
{
var nestedDocument = new WhileLoopDocumentItem(currentToken.TokenLocation, currentToken.MorestachioExpression, GetPublicOptions(currentToken));
buildStack.Push(new DocumentScope(nestedDocument, getScope));
TryAdd(currentDocumentItem.Document, nestedDocument);
}
else if (currentToken.Type.Equals(TokenType.DoLoopOpen))
{
var nestedDocument = new DoLoopDocumentItem(currentToken.TokenLocation, currentToken.MorestachioExpression, GetPublicOptions(currentToken));
buildStack.Push(new DocumentScope(nestedDocument, getScope));
TryAdd(currentDocumentItem.Document, nestedDocument);
}
else if (currentToken.Type.Equals(TokenType.ElementOpen))
{
var nestedDocument = new ExpressionScopeDocumentItem(currentToken.TokenLocation, currentToken.MorestachioExpression, GetPublicOptions(currentToken));
buildStack.Push(new DocumentScope(nestedDocument, getScope));
TryAdd(currentDocumentItem.Document, nestedDocument);
}
else if (currentToken.Type.Equals(TokenType.RepeatLoopOpen))
{
var nestedDocument = new RepeatDocumentItem(currentToken.TokenLocation, currentToken.MorestachioExpression, GetPublicOptions(currentToken));
buildStack.Push(new DocumentScope(nestedDocument, getScope));
TryAdd(currentDocumentItem.Document, nestedDocument);
}
else if (currentToken.Type.Equals(TokenType.InvertedElementOpen))
{
var nestedDocument = new InvertedExpressionScopeDocumentItem(currentToken.TokenLocation,
currentToken.MorestachioExpression, GetPublicOptions(currentToken));
buildStack.Push(new DocumentScope(nestedDocument, getScope));
TryAdd(currentDocumentItem.Document, nestedDocument);
}
else if (currentToken.Type.Equals(TokenType.CollectionClose) ||
currentToken.Type.Equals(TokenType.ElementClose) ||
currentToken.Type.Equals(TokenType.IfClose) ||
currentToken.Type.Equals(TokenType.ElseClose) ||
currentToken.Type.Equals(TokenType.ElseIfClose) ||
currentToken.Type.Equals(TokenType.WhileLoopClose) ||
currentToken.Type.Equals(TokenType.DoLoopClose) ||
currentToken.Type.Equals(TokenType.RepeatLoopClose) ||
currentToken.Type.Equals(TokenType.SwitchCaseClose) ||
currentToken.Type.Equals(TokenType.SwitchDefaultClose) ||
currentToken.Type.Equals(TokenType.SwitchClose))
{
CloseScope(buildStack, currentToken, currentDocumentItem);
}
else if (currentToken.Type.Equals(TokenType.EscapedSingleValue) ||
currentToken.Type.Equals(TokenType.UnescapedSingleValue))
{
var nestedDocument = new PathDocumentItem(currentToken.TokenLocation,
currentToken.MorestachioExpression,
currentToken.Type.Equals(TokenType.EscapedSingleValue), GetPublicOptions(currentToken));
TryAdd(currentDocumentItem.Document, nestedDocument);
}
else if (currentToken.Type.Equals(TokenType.PartialDeclarationOpen))
{
// currently same named partials will override each other
// to allow recursive calls of partials we first have to declare the partial and then load it as we would parse
// -the partial as a whole and then add it to the list would lead to unknown calls of partials inside the partial
var partialDocumentItem = new PartialDocumentItem(currentToken.TokenLocation,
currentToken.Value,
GetPublicOptions(currentToken));
buildStack.Push(new DocumentScope(partialDocumentItem, getScope));
TryAdd(currentDocumentItem.Document, partialDocumentItem);
}
else if (currentToken.Type.Equals(TokenType.PartialDeclarationClose))
{
CloseScope(buildStack, currentToken, currentDocumentItem);
//buildStack.Pop();
}
else if (currentToken.Type.Equals(TokenType.RenderPartial))
{
TryAdd(currentDocumentItem.Document, new RenderPartialDocumentItem(currentToken.TokenLocation,
currentToken.Value,
currentToken.MorestachioExpression, GetPublicOptions(currentToken)));
}
else if (currentToken.Type.Equals(TokenType.ImportPartial))
{
TryAdd(currentDocumentItem.Document, new ImportPartialDocumentItem(currentToken.TokenLocation,
currentToken.MorestachioExpression,
currentToken.FindOption <IMorestachioExpression>("Context"),
GetPublicOptions(currentToken)));
}
else if (currentToken.Type.Equals(TokenType.IsolationScopeOpen))
{
var nestedDocument =
new IsolationScopeDocumentItem(currentToken.TokenLocation,
currentToken.FindOption <IsolationOptions>("IsolationType"),
currentToken.FindOption <IMorestachioExpression>("IsolationScopeArg"),
GetPublicOptions(currentToken));
TryAdd(currentDocumentItem.Document, nestedDocument);
buildStack.Push(new DocumentScope(nestedDocument, getScope));
}
else if (currentToken.Type.Equals(TokenType.IsolationScopeClose))
{
CloseScope(buildStack, currentToken, currentDocumentItem);
}
else if (currentToken.Type.Equals(TokenType.Alias))
{
var scope = GetVariableScope();
var nestedDocument = new AliasDocumentItem(currentToken.TokenLocation,
currentToken.Value,
scope.VariableScopeNumber,
GetPublicOptions(currentToken));
TryAdd(currentDocumentItem.Document, nestedDocument);
currentDocumentItem.LocalVariables.Add(currentToken.Value);
}
else if (currentToken.Type.Equals(TokenType.VariableVar))
{
EvaluateVariableDocumentItem nestedDocument;
var isolationParent = buildStack.FirstOrDefault(e => e.Document is IsolationScopeDocumentItem doc &&
doc.Isolation.HasFlag(IsolationOptions.VariableIsolation));
if (isolationParent != null)
{
nestedDocument = new EvaluateVariableDocumentItem(currentToken.TokenLocation,
currentToken.Value,
currentToken.MorestachioExpression,
isolationParent.VariableScopeNumber,
GetPublicOptions(currentToken));
isolationParent.LocalVariables.Add(currentToken.Value);
}
else
{
nestedDocument = new EvaluateVariableDocumentItem(currentToken.TokenLocation,
currentToken.Value,
currentToken.MorestachioExpression, GetPublicOptions(currentToken));
}
TryAdd(currentDocumentItem.Document, nestedDocument);
}
else if (currentToken.Type.Equals(TokenType.VariableLet))
{
var scope = 0;
if (buildStack.Count > 1)
{
scope = GetVariableScope()
.VariableScopeNumber;
}
var nestedDocument = new EvaluateLetVariableDocumentItem(currentToken.TokenLocation,
currentToken.Value,
currentToken.MorestachioExpression, scope, GetPublicOptions(currentToken));
TryAdd(currentDocumentItem.Document, nestedDocument);
if (buildStack.Count > 1)
{
currentDocumentItem.LocalVariables.Add(currentToken.Value);
}
}
else if (currentToken.Type.Equals(TokenType.WriteLineBreak))
{
TryAdd(currentDocumentItem.Document, new TextEditDocumentItem(currentToken.TokenLocation,
new AppendLineBreakTextOperation(),
currentToken.IsEmbeddedToken, GetPublicOptions(currentToken)));
}
else if (currentToken.Type.Equals(TokenType.TrimLineBreak))
{
textEdits.Add(new TextEditDocumentItem(currentToken.TokenLocation,
new TrimLineBreakTextOperation()
{
LineBreaks = 1,
LineBreakTrimDirection = LineBreakTrimDirection.Begin
}, currentToken.IsEmbeddedToken, GetPublicOptions(currentToken)));
}
else if (currentToken.Type.Equals(TokenType.TrimLineBreaks))
{
textEdits.Add(new TextEditDocumentItem(currentToken.TokenLocation,
new TrimLineBreakTextOperation()
{
LineBreaks = currentToken.FindOption <bool>("All") ? -1 : 0,
LineBreakTrimDirection = LineBreakTrimDirection.Begin
}, currentToken.IsEmbeddedToken, GetPublicOptions(currentToken)));
}
else if (currentToken.Type.Equals(TokenType.TrimPrependedLineBreaks))
{
textEdits.Add(new TextEditDocumentItem(currentToken.TokenLocation,
new TrimLineBreakTextOperation()
{
LineBreaks = currentToken.FindOption <bool>("All") ? -1 : 0,
LineBreakTrimDirection = LineBreakTrimDirection.End
}, currentToken.IsEmbeddedToken, GetPublicOptions(currentToken)));
}
else if (currentToken.Type.Equals(TokenType.TrimEverything))
{
textEdits.Add(new TextEditDocumentItem(currentToken.TokenLocation,
new TrimAllWhitespacesTextOperation(),
currentToken.IsEmbeddedToken, GetPublicOptions(currentToken)));
}
else if (currentToken.Type.Equals(TokenType.Comment) || currentToken.Type.Equals(TokenType.BlockComment))
{
//just ignore this part and print nothing
if (options.TokenizeComments)
{
TryAdd(currentDocumentItem.Document,
new CommentDocumentItem(currentToken.TokenLocation, currentToken.Value,
GetPublicOptions(currentToken), currentToken.Type.Equals(TokenType.BlockComment)));
}
}
else
{
var tokenOptions = GetPublicOptions(currentToken);
var customDocumentItemProvider =
options.CustomDocumentItemProviders.FindTokenProvider(currentToken, options, tokenOptions);
var nestedDocument = customDocumentItemProvider?.Parse(currentToken, options, buildStack, getScope, tokenOptions);
if (nestedDocument != null)
{
TryAdd(currentDocumentItem.Document, nestedDocument);
}
}
}
if (buildStack.Count != 1)
{
//var invalidScopedElements = buildStack
//throw new MorestachioSyntaxError(new Tokenizer.CharacterLocation(){Character = }, );
throw new InvalidOperationException(
"There is an Error with the Parser. The Parser still contains unscoped builds: " +
buildStack.Select(e => e.Document.GetType().Name).Aggregate((e, f) => e + ", " + f));
}
return(buildStack.Pop().Document);
}
/// <summary>
/// Initializes a new instance of the <see cref="ContextObject"/> class.
/// </summary>
/// <param name="options">The options.</param>
public ContextObject([NotNull] ParserOptions options)
{
Options = options;
}
internal static AsyncParserAction Parse(Queue <TokenPair> tokens, ParserOptions options, ScopeData scopeData,
InferredTemplateModel currentScope = null)
{
var buildArray = new ParserActions();
while (tokens.Any())
{
var currentToken = tokens.Dequeue();
switch (currentToken.Type)
{
case TokenType.Comment:
break;
case TokenType.Content:
buildArray.MakeAction(HandleContent(currentToken.Value));
break;
case TokenType.CollectionOpen:
buildArray.MakeAction(HandleCollectionOpen(currentToken, tokens, options, scopeData, currentScope));
break;
case TokenType.ElementOpen:
buildArray.MakeAction(HandleElementOpen(currentToken, tokens, options, scopeData, currentScope));
break;
case TokenType.InvertedElementOpen:
buildArray.MakeAction(HandleInvertedElementOpen(currentToken, tokens, options, scopeData, currentScope));
break;
case TokenType.CollectionClose:
case TokenType.ElementClose:
// This should immediately return if we're in the element scope,
// -and if we're not, this should have been detected by the tokenizer!
return(async(builder, context) =>
{
await buildArray.ExecuteWith(builder, context);
});
case TokenType.Format:
buildArray.MakeAction(ParseFormatting(currentToken, tokens, options, scopeData, currentScope));
break;
case TokenType.EscapedSingleValue:
case TokenType.UnescapedSingleValue:
buildArray.MakeAction(HandleSingleValue(currentToken, options, scopeData, currentScope));
break;
case TokenType.PartialDeclarationOpen:
// currently same named partials will override each other
// to allow recursive calls of partials we first have to declare the partial and then load it as we would parse
// -the partial as a whole and then add it to the list would lead to unknown calls of partials inside the partial
AsyncParserAction handlePartialDeclaration = null;
scopeData.Partials[currentToken.Value] = async(outputStream, context) =>
{
if (handlePartialDeclaration != null)
{
await handlePartialDeclaration(outputStream, context);
}
else
{
throw new InvalidOperationException($"Partial '{currentToken.Value}' was executed before created was completed.");
}
};
handlePartialDeclaration = HandlePartialDeclaration(currentToken, tokens, options, scopeData, currentScope);
break;
case TokenType.RenderPartial:
var partialName = currentToken.Value;
var partialCode = scopeData.Partials[partialName];
buildArray.MakeAction(async(a, f) =>
{
var currentPartial = partialName + "_" + scopeData.PartialDepth.Count;
scopeData.PartialDepth.Push(currentPartial);
if (scopeData.PartialDepth.Count >= options.PartialStackSize)
{
switch (options.StackOverflowBehavior)
{
case ParserOptions.PartialStackOverflowBehavior.FailWithException:
throw new MustachioStackOverflowException(
$"You have exceeded the maximum stack Size for nested Partial calls of '{options.PartialStackSize}'. See Data for call stack")
{
Data =
{
{ "Callstack", scopeData.PartialDepth }
}
};
break;
case ParserOptions.PartialStackOverflowBehavior.FailSilent:
break;
default:
throw new ArgumentOutOfRangeException();
}
}
else
{
await partialCode(a, f);
}
scopeData.PartialDepth.Pop();
});
break;
}
}
return(async(builder, context) =>
{
await buildArray.ExecuteWith(builder, context);
});
}
public async MorestachioDocumentResultPromise CreateAsync([NotNull] object data, CancellationToken token)
{
if (Errors.Any())
{
throw new AggregateException("You cannot Create this Template as there are one or more Errors. See Inner Exception for more infos.", Errors.Select(e => e.GetException())).Flatten();
}
if (Document is MorestachioDocument morestachioDocument && morestachioDocument.MorestachioVersion !=
MorestachioDocument.GetMorestachioVersion())
{
throw new InvalidOperationException($"The supplied version in the Morestachio document " +
$"'{morestachioDocument.MorestachioVersion}'" +
$" is not compatible with the current morestachio version of " +
$"'{MorestachioDocument.GetMorestachioVersion()}'");
}
var timeoutCancellation = new CancellationTokenSource();
if (ParserOptions.Timeout != TimeSpan.Zero)
{
timeoutCancellation.CancelAfter(ParserOptions.Timeout);
var anyCancellationToken = CancellationTokenSource.CreateLinkedTokenSource(token, timeoutCancellation.Token);
token = anyCancellationToken.Token;
}
PerformanceProfiler profiler = null;
using (var byteCounterStream = ParserOptions.StreamFactory.GetByteCounterStream(ParserOptions))
{
if (byteCounterStream?.Stream == null)
{
throw new NullReferenceException("The created stream is null.");
}
var context = ParserOptions.CreateContextObject("", token, data);
var scopeData = new ScopeData();
try
{
if (ParserOptions.ProfileExecution)
{
scopeData.Profiler = profiler = new PerformanceProfiler(true);
}
await MorestachioDocument.ProcessItemsAndChildren(new[] { Document }, byteCounterStream,
context, scopeData);
if (timeoutCancellation.IsCancellationRequested)
{
throw new TimeoutException($"The requested timeout of '{ParserOptions.Timeout:g}' for template generation was reached.");
}
}
finally
{
if (!CaptureVariables)
{
scopeData.Dispose();
scopeData.Variables.Clear();
}
}
return(new MorestachioDocumentResult(byteCounterStream.Stream,
profiler,
scopeData.Variables.ToDictionary(e => e.Key, e => scopeData.GetFromVariable(e.Value).Value)));
}
}
