public GeneratorExpressionProcessor(CompilerContext context,
ForeignReferenceCollector collector,
GeneratorExpression node)
{
_collector = collector;
_generator = node;
Initialize(context);
}
public GeneratorExpressionProcessor(CompilerContext context,
ForeignReferenceCollector collector,
GeneratorExpression node)
{
_collector = collector;
_generator = node;
_skeleton = My<GeneratorSkeletonBuilder>.Instance.SkeletonFor(node, node.GetAncestor<Method>());
Initialize(context);
}
public override void LeaveGeneratorExpression(GeneratorExpression node)
{
var collector = new ForeignReferenceCollector();
collector.CurrentType = (IType) AstUtil.GetParentClass(node).Entity;
collector.Visit(node);
var processor = new GeneratorExpressionProcessor(Context, collector, node);
processor.Run();
ReplaceCurrentNode(processor.CreateEnumerableConstructorInvocation());
}
public override void OnGeneratorExpression(GeneratorExpression node)
{
if (node.LexicalInfo.Line != resolver.CaretLine)
return;
LoggingService.Warn("GeneratorExpression: " + node.EndSourceLocation.Line);
foreach (Declaration decl in node.Declarations) {
IterationDeclarationFound(decl.Name, decl.Type, node.Iterator, node.LexicalInfo);
}
base.OnGeneratorExpression(node);
}
override public bool Replace(Node existing, Node newNode)
{
if (base.Replace(existing, newNode))
{
return(true);
}
if (_items != null)
{
GeneratorExpression item = existing as GeneratorExpression;
if (null != item)
{
GeneratorExpression newItem = (GeneratorExpression)newNode;
if (_items.Replace(item, newItem))
{
return(true);
}
}
}
return(false);
}
override public object Clone()
{
GeneratorExpression clone = (GeneratorExpression)FormatterServices.GetUninitializedObject(typeof(GeneratorExpression));
clone._lexicalInfo = _lexicalInfo;
clone._endSourceLocation = _endSourceLocation;
clone._documentation = _documentation;
clone._isSynthetic = _isSynthetic;
clone._entity = _entity;
if (_annotations != null)
{
clone._annotations = (Hashtable)_annotations.Clone();
}
clone._expressionType = _expressionType;
if (null != _expression)
{
clone._expression = _expression.Clone() as Expression;
clone._expression.InitializeParent(clone);
}
if (null != _declarations)
{
clone._declarations = _declarations.Clone() as DeclarationCollection;
clone._declarations.InitializeParent(clone);
}
if (null != _iterator)
{
clone._iterator = _iterator.Clone() as Expression;
clone._iterator.InitializeParent(clone);
}
if (null != _filter)
{
clone._filter = _filter.Clone() as StatementModifier;
clone._filter.InitializeParent(clone);
}
return(clone);
}
public override void OnGeneratorExpression(GeneratorExpression node)
{
Visit(node.Iterator);
node.Iterator = ProcessIterator(node.Iterator, node.Declarations);
EnterNamespace(new DeclarationsNamespace(CurrentNamespace, node.Declarations));
Visit(node.Filter);
Visit(node.Expression);
LeaveNamespace();
IType generatorItemType = TypeSystemServices.GetConcreteExpressionType(node.Expression);
BindExpressionType(node, GeneratorTypeOf(generatorItemType));
}
public void generator_expression_body(
GeneratorExpression ge
) //throws RecognitionException, TokenStreamException
{
StatementModifier filter = null;
Expression iterator = null;
DeclarationCollection declarations = null == ge ? null : ge.Declarations;
try { // for error handling
declaration_list(declarations);
match(IN);
iterator=boolean_expression();
if (0==inputState.guessing)
{
ge.Iterator = iterator;
}
{
if ((LA(1)==IF||LA(1)==UNLESS||LA(1)==WHILE) && (tokenSet_5_.member(LA(2))))
{
filter=stmt_modifier();
if (0==inputState.guessing)
{
ge.Filter = filter;
}
}
else if ((tokenSet_14_.member(LA(1))) && (tokenSet_15_.member(LA(2)))) {
}
else
{
throw new NoViableAltException(LT(1), getFilename());
}
}
}
catch (RecognitionException ex)
{
if (0 == inputState.guessing)
{
reportError(ex, "generator_expression_body");
recover(ex,tokenSet_14_);
}
else
{
throw ex;
}
}
}
protected Expression expression() //throws RecognitionException, TokenStreamException
{
Expression e;
IToken f = null;
IToken f2 = null;
e = null;
ExtendedGeneratorExpression mge = null;
GeneratorExpression ge = null;
try { // for error handling
e=boolean_expression();
{
if ((LA(1)==FOR) && (LA(2)==ID))
{
f = LT(1);
match(FOR);
if (0==inputState.guessing)
{
ge = new GeneratorExpression(ToLexicalInfo(f));
ge.Expression = e;
e = ge;
}
generator_expression_body(ge);
{ // ( ... )*
for (;;)
{
if ((LA(1)==FOR) && (LA(2)==ID))
{
f2 = LT(1);
match(FOR);
if (0==inputState.guessing)
{
if (null == mge)
{
mge = new ExtendedGeneratorExpression(ToLexicalInfo(f));
mge.Items.Add(ge);
e = mge;
}
ge = new GeneratorExpression(ToLexicalInfo(f2));
mge.Items.Add(ge);
}
generator_expression_body(ge);
}
else
{
goto _loop435_breakloop;
}
}
_loop435_breakloop: ;
} // ( ... )*
}
else if ((tokenSet_14_.member(LA(1))) && (tokenSet_15_.member(LA(2)))) {
}
else
{
throw new NoViableAltException(LT(1), getFilename());
}
}
}
catch (RecognitionException ex)
{
if (0 == inputState.guessing)
{
reportError(ex, "expression");
recover(ex,tokenSet_14_);
}
else
{
throw ex;
}
}
return e;
}
public override void OnGeneratorExpression(GeneratorExpression node)
{
NotImplemented(node, node.ToString());
}
override public void LeaveGeneratorExpression(GeneratorExpression node)
{
var collector = new ForeignReferenceCollector { CurrentType = TypeContaining(node) };
node.Accept(collector);
var processor = new GeneratorExpressionProcessor(Context, collector, node);
processor.Run();
ReplaceCurrentNode(processor.CreateEnumerableConstructorInvocation());
}
public override void LeaveGeneratorExpression(GeneratorExpression node)
{
Expression newExpression = Convert(
GetConcreteExpressionType(node.Expression),
node.Expression);
if (null != newExpression)
{
node.Expression = newExpression;
}
}
//throws RecognitionException, TokenStreamException
protected Expression expression()
{
Expression e;
IToken f = null;
IToken f2 = null;
e = null;
ExtendedGeneratorExpression mge = null;
GeneratorExpression ge = null;
try { // for error handling
e=boolean_expression();
{
switch ( LA(1) )
{
case FOR:
{
f = LT(1);
match(FOR);
if (0==inputState.guessing)
{
ge = new GeneratorExpression(SourceLocationFactory.ToLexicalInfo(f));
ge.Expression = e;
e = ge;
}
generator_expression_body(ge);
{ // ( ... )*
for (;;)
{
if ((LA(1)==FOR))
{
f2 = LT(1);
match(FOR);
if (0==inputState.guessing)
{
if (null == mge)
{
mge = new ExtendedGeneratorExpression(SourceLocationFactory.ToLexicalInfo(f));
mge.Items.Add(ge);
e = mge;
}
ge = new GeneratorExpression(SourceLocationFactory.ToLexicalInfo(f2));
mge.Items.Add(ge);
}
generator_expression_body(ge);
}
else
{
goto _loop380_breakloop;
}
}
_loop380_breakloop: ;
} // ( ... )*
break;
}
case EOF:
case ESEPARATOR:
case DEF:
case DO:
case IF:
case UNLESS:
case WHILE:
case ID:
case EOS:
case NEWLINE:
case RPAREN:
case RBRACK:
case COMMA:
case COLON:
case RBRACE:
case QQ_END:
{
break;
}
default:
{
throw new NoViableAltException(LT(1), getFilename());
}
}
}
}
catch (RecognitionException ex)
{
if (0 == inputState.guessing)
{
reportError(ex);
recover(ex,tokenSet_12_);
}
else
{
throw ex;
}
}
return e;
}
void WriteGeneratorExpressionBody(GeneratorExpression node)
{
WriteKeyword(" for ");
WriteCommaSeparatedList(node.Declarations);
WriteKeyword(" in ");
Visit(node.Iterator);
Visit(node.Filter);
}
public GeneratorSkeleton SkeletonFor(GeneratorExpression generator, Method enclosingMethod)
{
return CreateGeneratorSkeleton(generator, enclosingMethod, TypeSystemServices.GetConcreteExpressionType(generator.Expression));
}
private IType TypeContaining(GeneratorExpression node)
{
return (IType) AstUtil.GetParentClass(node).Entity;
}
public override void OnGeneratorExpression(GeneratorExpression node)
{
ClearResult();
node.Expression.Accept(this);
if (resolveResult != null) {
IReturnType enumerable = new GetClassReturnType(projectContent, "System.Collections.Generic.IEnumerable", 1);
MakeResult(new ConstructedReturnType(enumerable, new IReturnType[] { resolveResult.ResolvedType }));
} else {
MakeResult(new GetClassReturnType(projectContent, "System.Collections.IEnumerable", 0));
}
}
public override void OnGeneratorExpression(GeneratorExpression node)
{
Write("(");
Visit(node.Expression);
WriteGeneratorExpressionBody(node);
Write(")");
}
override public object Clone()
{
GeneratorExpression clone = new GeneratorExpression();
clone._lexicalInfo = _lexicalInfo;
clone._endSourceLocation = _endSourceLocation;
clone._documentation = _documentation;
clone._isSynthetic = _isSynthetic;
clone._entity = _entity;
if (_annotations != null) clone._annotations = (Hashtable)_annotations.Clone();
clone._expressionType = _expressionType;
if (null != _expression)
{
clone._expression = _expression.Clone() as Expression;
clone._expression.InitializeParent(clone);
}
if (null != _declarations)
{
clone._declarations = _declarations.Clone() as DeclarationCollection;
clone._declarations.InitializeParent(clone);
}
if (null != _iterator)
{
clone._iterator = _iterator.Clone() as Expression;
clone._iterator.InitializeParent(clone);
}
if (null != _filter)
{
clone._filter = _filter.Clone() as StatementModifier;
clone._filter.InitializeParent(clone);
}
return clone;
}
BooClassBuilder CreateGeneratorSkeleton(GeneratorExpression node)
{
BooClassBuilder builder = CreateGeneratorSkeleton(node, _currentMethod.Method, GetConcreteExpressionType(node.Expression));
_currentMethod.Method.DeclaringType.Members.Add(builder.ClassDefinition);
return builder;
}
public override void OnGeneratorExpression(GeneratorExpression node)
{
Visit(node.Iterator);
node.Iterator = ProcessIterator(node.Iterator, node.Declarations);
EnterNamespace(new DeclarationsNamespace(CurrentNamespace, TypeSystemServices, node.Declarations));
Visit(node.Filter);
Visit(node.Expression);
LeaveNamespace();
BooClassBuilder generatorType = CreateGeneratorSkeleton(node);
BindExpressionType(node, generatorType.Entity);
}
public override void LeaveGeneratorExpression(GeneratorExpression node)
{
CheckExpressionType(node.Expression);
}
