public ILGenerationContext()
{
Output = new ILOutputStream();
ScopeStack = new ScopeStack();
ILScope globalScope = new ILScope();
ScopeStack.Push(globalScope);
}
private bool ParseDollar(TemplateStream stream, TokenList tokens, ContextStack context, ScopeStack scope)
{
if (stream.Current != '$' || scope.Current == Scope.Block) return false;
var next = stream.Peek();
if (next == '$')
{
stream.Advance(2);
return true;
}
if (char.IsLetter(next))
{
scope.Push(Scope.Statement);
stream.Advance();
return true;
}
if (next == '{')
{
scope.Push(Scope.Block);
stream.Advance();
return true;
}
return false;
}
public ScopeContainer()
{
Global = new ScopeStack<Scope>();
Class = new ScopeStack<Scope>();
CurrentScopeType = ScopeType.Global;
}
public TokenList Tokenize(string template)
{
//var x = ClassificationRegistry.GetClassificationType(Constants.KeywordClassificationType);
var stream = new TemplateStream(template);
var tokens = new TokenList();
var context = new ContextStack(tokens);
var scope = new ScopeStack();
var brace = new BraceStack();
while (true)
{
if (ParseComment(stream, tokens, context))
continue;
if (ParseDollar(stream, tokens, context, scope))
continue;
if (ParseStatement(stream, tokens, context, scope))
continue;
if (ParseFilter(stream, tokens, context, scope))
continue;
if (ParseOther(stream, tokens, context, scope, brace))
continue;
if (stream.Advance() == false)
break;
}
context.Clear(stream.Position);
return tokens;
}
/// <summary>
/// Stops the stopwatch, logs the result, pops nested scope stack.
/// </summary>
public void Dispose()
{
Stop();
ScopeStack = ScopeStack.Pop();
}
internal override void AnalyzeNode()
{
// figure out if our reference type is a function or a constructor
if (Parent is CallNode)
{
m_refType = (
((CallNode)Parent).IsConstructor
? ReferenceType.Constructor
: ReferenceType.Function
);
}
ActivationObject scope = ScopeStack.Peek();
VariableField = scope.FindReference(m_name);
if (VariableField == null)
{
// this must be a global. if it isn't in the global space, throw an error
// this name is not in the global space.
// if it isn't generated, then we want to throw an error
// we also don't want to report an undefined variable if it is the object
// of a typeof operator
if (!m_isGenerated && !(Parent is TypeOfNode))
{
// report this undefined reference
Context.ReportUndefined(this);
// possibly undefined global (but definitely not local)
Context.HandleError(
(Parent is CallNode && ((CallNode)Parent).Function == this ? JSError.UndeclaredFunction : JSError.UndeclaredVariable),
null,
false
);
}
if (!(scope is GlobalScope))
{
// add it to the scope so we know this scope references the global
scope.AddField(new JSGlobalField(
m_name,
Missing.Value,
0
));
}
}
else
{
// BUT if this field is a place-holder in the containing scope of a named
// function expression, then we need to throw an ambiguous named function expression
// error because this could cause problems.
// OR if the field is already marked as ambiguous, throw the error
if (VariableField.NamedFunctionExpression != null ||
VariableField.IsAmbiguous)
{
// mark it as a field that's referenced ambiguously
VariableField.IsAmbiguous = true;
// throw as an error
Context.HandleError(JSError.AmbiguousNamedFunctionExpression, true);
// if we are preserving function names, then we need to mark this field
// as not crunchable
if (Parser.Settings.PreserveFunctionNames)
{
VariableField.CanCrunch = false;
}
}
// see if this scope already points to this name
if (scope[m_name] == null)
{
// create an inner reference so we don't keep walking up the scope chain for this name
VariableField = scope.CreateInnerField(VariableField);
}
// add the reference
VariableField.AddReference(scope);
if (VariableField is JSPredefinedField)
{
// this is a predefined field. If it's Nan or Infinity, we should
// replace it with the numeric value in case we need to later combine
// some literal expressions.
if (string.CompareOrdinal(m_name, "NaN") == 0)
{
// don't analyze the new ConstantWrapper -- we don't want it to take part in the
// duplicate constant combination logic should it be turned on.
Parent.ReplaceChild(this, new ConstantWrapper(double.NaN, PrimitiveType.Number, Context, Parser));
}
else if (string.CompareOrdinal(m_name, "Infinity") == 0)
{
// don't analyze the new ConstantWrapper -- we don't want it to take part in the
// duplicate constant combination logic should it be turned on.
Parent.ReplaceChild(this, new ConstantWrapper(double.PositiveInfinity, PrimitiveType.Number, Context, Parser));
}
}
}
}
/// <summary>
/// Get instance of the parent delta feed scope
/// </summary>
/// <returns>
/// The parent delta feed scope
/// Or null if there is no parent delta feed scope
/// </returns>
private DeltaFeedScope GetParentDeltaFeedScope()
{
ScopeStack scopeStack = new ScopeStack();
Scope parentFeedScope = null;
if (this.scopes.Count > 0)
{
// pop current scope and push into scope stack
scopeStack.Push(this.scopes.Pop());
}
while (this.scopes.Count > 0)
{
Scope scope = this.scopes.Pop();
scopeStack.Push(scope);
if (scope is DeltaFeedScope)
{
parentFeedScope = scope;
break;
}
}
while (scopeStack.Count > 0)
{
Scope scope = scopeStack.Pop();
this.scopes.Push(scope);
}
return parentFeedScope as DeltaFeedScope;
}
private bool ParseStatement(TemplateStream stream, TokenList tokens, ContextStack context, ScopeStack scope)
{
if (scope.Current == Scope.Statement)
{
scope.Pop();
}
else if (scope.Current == Scope.Block)
{
var previous = stream.Peek(-1);
if (previous == '$' || char.IsLetterOrDigit(previous)) return false;
}
else
{
return false;
}
var name = stream.PeekWord();
var identifier = context.Current.GetIdentifier(name);
if (identifier != null)
{
tokens.Add(new Token(stream.Position, name.Length, stream.Line, TokenType.Identifier, context.Current, identifier.QuickInfo));
stream.Advance(name.Length);
if (identifier.Type == IdentifierType.Indexed)
{
if (stream.Current == '(') scope.Push(Scope.Filter);
if (stream.Current == '[')
{
scope.Push(Scope.Template);
context.Push(name, stream.Position);
}
}
else if (identifier.Type == IdentifierType.Boolean)
{
if (stream.Current == '[') scope.Push(Scope.True);
}
return true;
}
return false;
}
void ScanAndAddComment(List <ColoredSegment> coloredSegments, int startOffset, ScopeStack commentScopeStack, ClassificationSpan classificationSpan)
{
int lastClassifiedOffset = classificationSpan.Span.Start;
try {
// Scan comments for tag highlighting
var text = textView.TextSnapshot.GetText(classificationSpan.Span);
int idx = 0, oldIdx = 0;
while ((idx = FindNextCommentTagIndex(text, idx, out string commentTag)) >= 0)
{
var headSpanLength = idx - oldIdx;
if (headSpanLength > 0)
{
var headSegment = new ColoredSegment(lastClassifiedOffset - startOffset, headSpanLength, commentScopeStack);
lastClassifiedOffset += headSpanLength;
coloredSegments.Add(headSegment);
}
var highlightSegment = new ColoredSegment(lastClassifiedOffset - startOffset, commentTag.Length, commentScopeStack.Push("markup.other"));
coloredSegments.Add(highlightSegment);
idx += commentTag.Length;
lastClassifiedOffset += commentTag.Length;
oldIdx = idx;
}
} catch (Exception e) {
LoggingService.LogError("Error while scanning comment tags.", e);
}
int tailSpanLength = classificationSpan.Span.End - lastClassifiedOffset;
if (tailSpanLength > 0)
{
var tailSpan = new ColoredSegment(lastClassifiedOffset - startOffset, tailSpanLength, commentScopeStack);
coloredSegments.Add(tailSpan);
}
}
public InterpretorVisitor()
{
Environment = new Stack<MemorySpace>();
MemorySpaces = new ScopeStack<MemorySpace>();
}
public void SetScopeByID(string id)
{
_currentScopeID = id;
_currentScope = _data[_currentScopeID];
}
public VariableDeclaration(Context context, JSParser parser, string identifier, Context idContext, AstNode initializer, FieldAttributes fieldAttributes, bool ignoreDuplicates)
: base(context, parser)
{
// identifier cannot be null
m_identifier = identifier;
// initializer may be null
m_initializer = initializer;
if (m_initializer != null)
{
m_initializer.Parent = this;
}
// we'll need to do special stuff if the initializer if a function expression,
// so try the conversion now
FunctionObject functionValue = m_initializer as FunctionObject;
string name = m_identifier.ToString();
ActivationObject currentScope = ScopeStack.Peek();
ActivationObject definingScope = currentScope;
if (definingScope is BlockScope)
{
// block scope -- the variable is ACTUALLY defined in the containing function/global scope,
// so we need to check THERE for duplicate defines.
do
{
definingScope = definingScope.Parent;
} while (definingScope is BlockScope);
}
JSVariableField field = definingScope[name];
if (field != null &&
(functionValue == null || functionValue != field.FieldValue))
{
// this is a declaration that already has a field declared.
// if the field is a named function expression, we want to fire an
// ambiguous named function expression error -- and we know it's an NFE
// if the FieldValue is a function object OR if the field
// has already been marked ambiguous
if (field.IsAmbiguous || field.FieldValue is FunctionObject)
{
if (idContext != null)
{
idContext.HandleError(
JSError.AmbiguousNamedFunctionExpression,
true
);
}
else if (context != null)
{
// not identifier context???? Try the whole statment context.
// if neither context is set, then we don't get an error!
context.HandleError(
JSError.AmbiguousNamedFunctionExpression,
true
);
}
// if we are preserving function names, then we need to mark this field
// as not crunchable
if (Parser.Settings.PreserveFunctionNames)
{
field.CanCrunch = false;
}
}
else if (!ignoreDuplicates)
{
if (idContext != null)
{
// otherwise just a normal duplicate error
idContext.HandleError(
JSError.DuplicateName,
field.IsLiteral
);
}
else if (context != null)
{
// otherwise just a normal duplicate error
context.HandleError(
JSError.DuplicateName,
field.IsLiteral
);
}
}
}
bool isLiteral = ((fieldAttributes & FieldAttributes.Literal) != 0);
// normally the value will be null.
// but if there is no initializer, we'll use Missing so we can tell the difference.
// and if this is a literal, we'll set it to the actual literal astnode
object val = null;
if (m_initializer == null)
{
val = Missing.Value;
}
else if (isLiteral || (functionValue != null))
{
val = m_initializer;
}
m_field = currentScope.DeclareField(
m_identifier,
val,
fieldAttributes
);
m_field.OriginalContext = idContext;
// we are now declared by a var statement
m_field.IsDeclared = true;
// if we are declaring a variable inside a with statement, then we will be declaring
// a local variable in the enclosing scope if the with object doesn't have a property
// of that name. But if it does, we won't actually be creating a variable field -- we'll
// just use the property. So if we use an initializer in this declaration, then we will
// actually be referencing the value.
// SO, if this is a with-scope and this variable declaration has an initializer, we're going
// to go ahead and bump up the reference.
if (currentScope is WithScope && m_initializer != null)
{
m_field.AddReference(currentScope);
}
// special case the ambiguous function expression test. If we are var-ing a variable
// with the same name as the function expression, then it's okay. We won't have an ambiguous
// reference and it will be okay to use the name to reference the function expression
if (functionValue != null && string.CompareOrdinal(m_identifier, functionValue.Name) == 0)
{
// null out the link to the named function expression
// and make the function object point to the PROPER variable: the local within its own scope
// and the inner is not pointing to the outer.
functionValue.DetachFromOuterField(false);
m_field.IsFunction = false;
}
}
protected void Visit(VariableReferenceExpression variableRef)
{
((ScopeDeclarationWithRef)ScopeStack.Peek()).VariableReferences.Add(variableRef);
}
internal DynamicOperatorTransformer(ScopeStack <TScope, TRootScope> scopeStack, ILanguageDefinition languageDefinition, DynamicTransformer <TScope, TRootScope> nodeTransformer)
{
LanguageDefinition = languageDefinition;
NodeTransformer = nodeTransformer;
ScopeStack = scopeStack;
}
public static TextMateLanguage Create(ScopeStack scope) => new TextMateLanguage(scope);
internal static bool IsCurrentLoggingScope(LoggingScope scope) => !ScopeStack.IsEmpty && ScopeStack.Peek().LoggingScope == scope;
Dictionary <string, ScopeStack> GetClassificationMap(string scope)
{
Dictionary <string, ScopeStack> result;
var baseScopeStack = new ScopeStack(scope);
defaultScopeStack = baseScopeStack.Push(EditorThemeColors.Foreground);
if (classificationMapCache.TryGetValue(scope, out result))
{
return(result);
}
result = new Dictionary <string, ScopeStack> {
[ClassificationTypeNames.Comment] = MakeScope(baseScopeStack, "comment." + scope),
[ClassificationTypeNames.ExcludedCode] = MakeScope(baseScopeStack, "comment.excluded." + scope),
[ClassificationTypeNames.Identifier] = MakeScope(baseScopeStack, scope),
[ClassificationTypeNames.Keyword] = MakeScope(baseScopeStack, "keyword." + scope),
[ClassificationTypeNames.NumericLiteral] = MakeScope(baseScopeStack, "constant.numeric." + scope),
[ClassificationTypeNames.Operator] = MakeScope(baseScopeStack, scope),
[ClassificationTypeNames.PreprocessorKeyword] = MakeScope(baseScopeStack, "meta.preprocessor." + scope),
[ClassificationTypeNames.StringLiteral] = MakeScope(baseScopeStack, "string." + scope),
[ClassificationTypeNames.WhiteSpace] = MakeScope(baseScopeStack, "text." + scope),
[ClassificationTypeNames.Text] = MakeScope(baseScopeStack, "text." + scope),
[ClassificationTypeNames.PreprocessorText] = MakeScope(baseScopeStack, "meta.preprocessor.region.name." + scope),
[ClassificationTypeNames.Punctuation] = MakeScope(baseScopeStack, "punctuation." + scope),
[ClassificationTypeNames.VerbatimStringLiteral] = MakeScope(baseScopeStack, "string.verbatim." + scope),
[ClassificationTypeNames.ClassName] = MakeScope(baseScopeStack, "entity.name.class." + scope),
[ClassificationTypeNames.DelegateName] = MakeScope(baseScopeStack, "entity.name.delegate." + scope),
[ClassificationTypeNames.EnumName] = MakeScope(baseScopeStack, "entity.name.enum." + scope),
[ClassificationTypeNames.InterfaceName] = MakeScope(baseScopeStack, "entity.name.interface." + scope),
[ClassificationTypeNames.ModuleName] = MakeScope(baseScopeStack, "entity.name.module." + scope),
[ClassificationTypeNames.StructName] = MakeScope(baseScopeStack, "entity.name.struct." + scope),
[ClassificationTypeNames.TypeParameterName] = MakeScope(baseScopeStack, "entity.name.typeparameter." + scope),
[ClassificationTypeNames.FieldName] = MakeScope(baseScopeStack, "entity.name.field." + scope),
[ClassificationTypeNames.EnumMemberName] = MakeScope(baseScopeStack, "entity.name.enummember." + scope),
[ClassificationTypeNames.ConstantName] = MakeScope(baseScopeStack, "entity.name.constant." + scope),
[ClassificationTypeNames.LocalName] = MakeScope(baseScopeStack, "entity.name.local." + scope),
[ClassificationTypeNames.ParameterName] = MakeScope(baseScopeStack, "entity.name.parameter." + scope),
[ClassificationTypeNames.ExtensionMethodName] = MakeScope(baseScopeStack, "entity.name.extensionmethod." + scope),
[ClassificationTypeNames.MethodName] = MakeScope(baseScopeStack, "entity.name.function." + scope),
[ClassificationTypeNames.PropertyName] = MakeScope(baseScopeStack, "entity.name.property." + scope),
[ClassificationTypeNames.EventName] = MakeScope(baseScopeStack, "entity.name.event." + scope),
[ClassificationTypeNames.XmlDocCommentAttributeName] = MakeScope(baseScopeStack, "comment.line.documentation." + scope),
[ClassificationTypeNames.XmlDocCommentAttributeQuotes] = MakeScope(baseScopeStack, "comment.line.documentation." + scope),
[ClassificationTypeNames.XmlDocCommentAttributeValue] = MakeScope(baseScopeStack, "comment.line.documentation." + scope),
[ClassificationTypeNames.XmlDocCommentCDataSection] = MakeScope(baseScopeStack, "comment.line.documentation." + scope),
[ClassificationTypeNames.XmlDocCommentComment] = MakeScope(baseScopeStack, "comment.line.documentation." + scope),
[ClassificationTypeNames.XmlDocCommentDelimiter] = MakeScope(baseScopeStack, "comment.line.documentation.delimiter." + scope),
[ClassificationTypeNames.XmlDocCommentEntityReference] = MakeScope(baseScopeStack, "comment.line.documentation." + scope),
[ClassificationTypeNames.XmlDocCommentName] = MakeScope(baseScopeStack, "comment.line.documentation." + scope),
[ClassificationTypeNames.XmlDocCommentProcessingInstruction] = MakeScope(baseScopeStack, "comment.line.documentation." + scope),
[ClassificationTypeNames.XmlDocCommentText] = MakeScope(baseScopeStack, "comment.line.documentation." + scope),
[ClassificationTypeNames.XmlLiteralAttributeName] = MakeScope(baseScopeStack, "entity.other.attribute-name." + scope),
[ClassificationTypeNames.XmlLiteralAttributeQuotes] = MakeScope(baseScopeStack, "punctuation.definition.string." + scope),
[ClassificationTypeNames.XmlLiteralAttributeValue] = MakeScope(baseScopeStack, "string.quoted." + scope),
[ClassificationTypeNames.XmlLiteralCDataSection] = MakeScope(baseScopeStack, "text." + scope),
[ClassificationTypeNames.XmlLiteralComment] = MakeScope(baseScopeStack, "comment.block." + scope),
[ClassificationTypeNames.XmlLiteralDelimiter] = MakeScope(baseScopeStack, scope),
[ClassificationTypeNames.XmlLiteralEmbeddedExpression] = MakeScope(baseScopeStack, scope),
[ClassificationTypeNames.XmlLiteralEntityReference] = MakeScope(baseScopeStack, scope),
[ClassificationTypeNames.XmlLiteralName] = MakeScope(baseScopeStack, "entity.name.tag.localname." + scope),
[ClassificationTypeNames.XmlLiteralProcessingInstruction] = MakeScope(baseScopeStack, scope),
[ClassificationTypeNames.XmlLiteralText] = MakeScope(baseScopeStack, "text." + scope),
};
classificationMapCache = classificationMapCache.SetItem(scope, result);
return(result);
}
internal StringRenderTransformer(JinjaEnvironment environment, ScopeStack <DynamicContext, DynamicRootContext> scopes)
{
Scopes = scopes;
Environment = environment;
ExpressionParserTransformer = Environment.Evaluation.CreateDynamicTransformer(Scopes);
}
static ScopeStack MakeScope(ScopeStack defaultScope, string scope)
{
return(defaultScope.Push(scope));
}
public void New_Stack_has_Depth_of_1( )
{
var stack = new ScopeStack <int>( );
Assert.AreEqual(1, stack.Depth);
}
private bool ParseFilter(TemplateStream stream, TokenList tokens, ContextStack context, ScopeStack scope)
{
//if (scope.Current != Scope.Filter) return false;
//scope.Pop();
//tokens.Add(new Token(stream.Position, 1, TokenType.OpenFunctionBrace, context.Current));
//while (stream.Current != ')')
// if (stream.Advance() == false) return true;
//tokens.Add(new Token(stream.Position, 1, TokenType.CloseFunctionBrace, context.Current));
//stream.Advance();
//if (stream.Current == '[') scope.Push(Scope.Template);
//return true;
return false;
}
private bool ParseStatement(TemplateStream stream, TokenList tokens, ContextStack context, ScopeStack scope)
{
if (scope.Current == Scope.Statement)
{
scope.Pop();
}
else if (scope.Current == Scope.Block)
{
var previous = stream.Peek(-1);
if (previous == '$' || char.IsLetterOrDigit(previous))
{
return(false);
}
}
else
{
return(false);
}
var name = stream.PeekWord();
var identifier = context.Current.GetIdentifier(name);
if (identifier != null)
{
tokens.Add(new Token(stream.Position, name.Length, stream.Line, TokenType.Identifier, context.Current, identifier.QuickInfo));
stream.Advance(name.Length);
if (identifier.Type == IdentifierType.Indexed)
{
if (stream.Current == '(')
{
scope.Push(Scope.Filter);
}
if (stream.Current == '[')
{
scope.Push(Scope.Template);
context.Push(name, stream.Position);
}
}
else if (identifier.Type == IdentifierType.Boolean)
{
if (stream.Current == '[')
{
scope.Push(Scope.True);
}
}
return(true);
}
return(false);
}
private bool ParseOther(TemplateStream stream, TokenList tokens, ContextStack context, ScopeStack scope, BraceStack brace)
{
switch (stream.Current)
{
case '[':
brace.Push(tokens.Add(new Token(stream.Position, 1, stream.Line, TokenType.OpenBrace, context.Current)), scope.Changed);
stream.Advance();
return true;
case ']':
var openBrace = brace.Pop(TokenType.OpenBrace);
var token = tokens.Add(new Token(stream.Position, 1, stream.Line, TokenType.CloseBrace, context.Current, null, openBrace.Token));
if (openBrace.Token != null)
{
openBrace.Token.MatchingToken = token;
}
stream.Advance();
if (openBrace.ScopeChanged)
{
var current = scope.Pop();
if (current == Scope.Template)
{
context.Pop(stream.Position);
if (stream.Current == '[') scope.Push(Scope.Separator);
}
else if (current == Scope.True)
{
context.Pop(stream.Position);
if (stream.Current == '[') scope.Push(Scope.False);
}
}
return true;
case '{':
//tokens.Add(new Token(stream.Position - 1, 2, TokenType.OpenBlock, context.Current));
brace.Push(tokens.Add(new Token(stream.Position, 1, stream.Line, TokenType.OpenCurlyBrace, context.Current)), scope.Changed);
stream.Advance();
return true;
case '}':
var openCurlyBrace = brace.Pop(TokenType.OpenCurlyBrace);
token = tokens.Add(new Token(stream.Position, 1, stream.Line, TokenType.CloseCurlyBrace, context.Current, null, openCurlyBrace.Token));
if (openCurlyBrace.Token != null)
{
openCurlyBrace.Token.MatchingToken = token;
}
//tokens.Add(new Token(stream.Position, 1, TokenType.CloseBlock, context.Current));
stream.Advance();
if (openCurlyBrace.ScopeChanged)
{
scope.Pop();
}
return true;
case '(':
brace.Push(tokens.Add(new Token(stream.Position, 1, stream.Line, TokenType.OpenFunctionBrace, context.Current)), scope.Changed);
stream.Advance();
return true;
case ')':
var openFunctionBrace = brace.Pop(TokenType.OpenFunctionBrace);
token = tokens.Add(new Token(stream.Position, 1, stream.Line, TokenType.CloseFunctionBrace, context.Current, null, openFunctionBrace.Token));
if (openFunctionBrace.Token != null)
{
openFunctionBrace.Token.MatchingToken = token;
}
stream.Advance();
if (openFunctionBrace.ScopeChanged)
{
scope.Pop();
}
return true;
}
if (scope.Current == Scope.Block) return false;
var name = stream.PeekWord();
if (name == null) return false;
if (keywords.Contains(name))
{
tokens.Add(new Token(stream.Position, name.Length, stream.Line, TokenType.Keyword, context.Current));
}
stream.Advance(name.Length);
return true;
}
private bool ParseFilter(TemplateStream stream, TokenList tokens, ContextStack context, ScopeStack scope)
{
//if (scope.Current != Scope.Filter) return false;
//scope.Pop();
//tokens.Add(new Token(stream.Position, 1, TokenType.OpenFunctionBrace, context.Current));
//while (stream.Current != ')')
// if (stream.Advance() == false) return true;
//tokens.Add(new Token(stream.Position, 1, TokenType.CloseFunctionBrace, context.Current));
//stream.Advance();
//if (stream.Current == '[') scope.Push(Scope.Template);
//return true;
return(false);
}
/// <summary>
/// Get instance of the parent entry scope
/// </summary>
/// <returns>
/// The parent entry scope
/// Or null if there is no parent entry scope
/// </returns>
protected EntryScope GetParentEntryScope()
{
ScopeStack scopeStack = new ScopeStack();
Scope parentEntryScope = null;
if (this.scopes.Count > 0)
{
// pop current scope and push into scope stack
scopeStack.Push(this.scopes.Pop());
}
while (this.scopes.Count > 0)
{
Scope scope = this.scopes.Pop();
scopeStack.Push(scope);
if (scope is EntryScope)
{
parentEntryScope = scope;
break;
}
}
while (scopeStack.Count > 0)
{
Scope scope = scopeStack.Pop();
this.scopes.Push(scope);
}
return parentEntryScope as EntryScope;
}
private bool ParseOther(TemplateStream stream, TokenList tokens, ContextStack context, ScopeStack scope, BraceStack brace)
{
switch (stream.Current)
{
case '[':
brace.Push(tokens.Add(new Token(stream.Position, 1, stream.Line, TokenType.OpenBrace, context.Current)), scope.Changed);
stream.Advance();
return(true);
case ']':
var openBrace = brace.Pop(TokenType.OpenBrace);
var token = tokens.Add(new Token(stream.Position, 1, stream.Line, TokenType.CloseBrace, context.Current, null, openBrace.Token));
if (openBrace.Token != null)
{
openBrace.Token.MatchingToken = token;
}
stream.Advance();
if (openBrace.ScopeChanged)
{
var current = scope.Pop();
if (current == Scope.Template)
{
context.Pop(stream.Position);
if (stream.Current == '[')
{
scope.Push(Scope.Separator);
}
}
else if (current == Scope.True)
{
context.Pop(stream.Position);
if (stream.Current == '[')
{
scope.Push(Scope.False);
}
}
}
return(true);
case '{':
//tokens.Add(new Token(stream.Position - 1, 2, TokenType.OpenBlock, context.Current));
brace.Push(tokens.Add(new Token(stream.Position, 1, stream.Line, TokenType.OpenCurlyBrace, context.Current)), scope.Changed);
stream.Advance();
return(true);
case '}':
var openCurlyBrace = brace.Pop(TokenType.OpenCurlyBrace);
token = tokens.Add(new Token(stream.Position, 1, stream.Line, TokenType.CloseCurlyBrace, context.Current, null, openCurlyBrace.Token));
if (openCurlyBrace.Token != null)
{
openCurlyBrace.Token.MatchingToken = token;
}
//tokens.Add(new Token(stream.Position, 1, TokenType.CloseBlock, context.Current));
stream.Advance();
if (openCurlyBrace.ScopeChanged)
{
scope.Pop();
}
return(true);
case '(':
brace.Push(tokens.Add(new Token(stream.Position, 1, stream.Line, TokenType.OpenFunctionBrace, context.Current)), scope.Changed);
stream.Advance();
return(true);
case ')':
var openFunctionBrace = brace.Pop(TokenType.OpenFunctionBrace);
token = tokens.Add(new Token(stream.Position, 1, stream.Line, TokenType.CloseFunctionBrace, context.Current, null, openFunctionBrace.Token));
if (openFunctionBrace.Token != null)
{
openFunctionBrace.Token.MatchingToken = token;
}
stream.Advance();
if (openFunctionBrace.ScopeChanged)
{
scope.Pop();
}
return(true);
}
if (scope.Current == Scope.Block)
{
return(false);
}
var name = stream.PeekWord();
if (name == null)
{
return(false);
}
if (keywords.Contains(name))
{
tokens.Add(new Token(stream.Position, name.Length, stream.Line, TokenType.Keyword, context.Current));
}
stream.Advance(name.Length);
return(true);
}
private bool ParseDollar(TemplateStream stream, TokenList tokens, ContextStack context, ScopeStack scope)
{
if (stream.Current != '$' || scope.Current == Scope.Block)
{
return(false);
}
var next = stream.Peek();
if (next == '$')
{
stream.Advance(2);
return(true);
}
if (char.IsLetter(next))
{
scope.Push(Scope.Statement);
stream.Advance();
return(true);
}
if (next == '{')
{
scope.Push(Scope.Block);
stream.Advance();
return(true);
}
return(false);
}
public override Node Visit(VariableReferenceExpression variableRef)
{
((ScopeDeclarationWithRef)ScopeStack.Peek()).VariableReferences.Add(variableRef);
return(variableRef);
}
