public static void UnpackArray(BooCodeBuilder codeBuilder, Method method, Block block, Expression expression, DeclarationCollection declarations)
{
ILocalEntity local = expression.Entity as ILocalEntity;
if (null == local)
{
local = codeBuilder.DeclareTempLocal(method,
expression.ExpressionType);
block.Add(
codeBuilder.CreateAssignment(
codeBuilder.CreateReference(local),
expression));
}
for (int i = 0; i < declarations.Count; ++i)
{
Declaration declaration = declarations[i];
block.Add(
codeBuilder.CreateAssignment(
codeBuilder.CreateReference(
declaration.Entity),
codeBuilder.CreateSlicing(
codeBuilder.CreateReference(local),
i)));
}
}
public void DeclareFieldsAndConstructor(BooClassBuilder builder)
{
var keys = _referencedEntities.Keys.Cast <ITypedEntity>().ToArray();
foreach (var entity in keys)
{
_collector.Visit(entity.Type);
}
if (_collector.Matches.Any())
{
BuildTypeMap(builder.ClassDefinition);
}
// referenced entities turn into fields
foreach (var entity in keys)
{
Field field = builder.AddInternalField(GetUniqueName(entity.Name), _mapper.MapType(entity.Type));
_referencedEntities[entity] = (InternalField)field.Entity;
}
// single constructor taking all referenced entities
BooMethodBuilder constructor = builder.AddConstructor();
constructor.Modifiers = TypeMemberModifiers.Public;
constructor.Body.Add(CodeBuilder.CreateSuperConstructorInvocation(builder.Entity.BaseType));
foreach (var entity in _referencedEntities.Keys)
{
InternalField field = _referencedEntities[entity];
ParameterDeclaration parameter = constructor.AddParameter(field.Name, ((ITypedEntity)entity).Type);
constructor.Body.Add(
CodeBuilder.CreateAssignment(CodeBuilder.CreateReference(field),
CodeBuilder.CreateReference(parameter)));
}
}
public static void UnpackEnumerable(BooCodeBuilder codeBuilder, Method method, Block block, Expression expression, DeclarationCollection declarations)
{
TypeSystemServices tss = codeBuilder.TypeSystemServices;
InternalLocal local = codeBuilder.DeclareTempLocal(method,
tss.IEnumeratorType);
IType expressionType = expression.ExpressionType;
if (expressionType.IsSubclassOf(codeBuilder.TypeSystemServices.IEnumeratorType))
{
block.Add(
codeBuilder.CreateAssignment(
codeBuilder.CreateReference(local),
expression));
}
else
{
if (!expressionType.IsSubclassOf(codeBuilder.TypeSystemServices.IEnumerableType))
{
expression = codeBuilder.CreateMethodInvocation(
RuntimeServices_GetEnumerable, expression);
}
block.Add(
codeBuilder.CreateAssignment(
block.LexicalInfo,
codeBuilder.CreateReference(local),
codeBuilder.CreateMethodInvocation(
expression, IEnumerable_GetEnumerator)));
}
for (int i = 0; i < declarations.Count; ++i)
{
Declaration declaration = declarations[i];
block.Add(
codeBuilder.CreateAssignment(
codeBuilder.CreateReference(declaration.Entity),
codeBuilder.CreateMethodInvocation(RuntimeServices_MoveNext,
codeBuilder.CreateReference(local))));
}
}
private Expression VisitExpression(ref BoundSpillSequenceBuilder builder, Expression expression)
{
// wrap the node in a spill sequence to mark the fact that it must be moved up the tree.
// The caller will handle this node type if the result is discarded.
if (expression != null && expression.NodeType == NodeType.AwaitExpression)
{
// we force the await expression to be assigned to a temp variable
var awaitExpression = (AwaitExpression)expression;
awaitExpression.BaseExpression = VisitExpression(ref builder, awaitExpression.BaseExpression);
var local = _F.DeclareTempLocal(_currentMethod, awaitExpression.ExpressionType);
var replacement = _F.CreateAssignment(
awaitExpression.LexicalInfo,
_F.CreateLocalReference(local),
awaitExpression);
if (builder == null)
{
builder = new BoundSpillSequenceBuilder();
}
builder.AddLocal(local);
builder.AddStatement(new ExpressionStatement(replacement));
return(_F.CreateLocalReference(local));
}
var e = Visit(expression);
if (e == null || e.NodeType != SpillSequenceBuilder)
{
return(e);
}
var newBuilder = (BoundSpillSequenceBuilder)e;
if (builder == null)
{
builder = newBuilder.Update(null);
}
else
{
builder.Include(newBuilder);
}
return(newBuilder.Value);
}