public static TypeCompilerEnvironment EnterType
(CompilerEnvironment env,
JST.NameSupply nameSupply,
JST.Identifier rootId,
JST.Identifier assemblyId,
JST.Identifier typeId,
CST.TypeEnvironment typeEnv,
TypeTrace typeTrace)
{
var typeBoundTypeParameterIds = new Seq <JST.Identifier>();
for (var i = 0; i < typeEnv.Type.Arity; i++)
{
typeBoundTypeParameterIds.Add(nameSupply.GenSym());
}
var res = new TypeCompilerEnvironment
(typeEnv.Global,
typeEnv.SkolemDefs,
typeEnv.Assembly,
typeEnv.Type,
typeEnv.TypeBoundArguments,
env,
nameSupply,
rootId,
assemblyId,
typeId,
typeBoundTypeParameterIds,
typeTrace);
res.BindSpecial();
return(res);
}
private void InheritBindings(TypeCompilerEnvironment outer)
{
foreach (var kv in outer.boundAssemblies)
{
boundAssemblies.Add(kv.Key, kv.Value);
}
foreach (var kv in outer.boundTypes)
{
boundTypes.Add(kv.Key, kv.Value);
}
}
public TypeCompiler(TypeDefinitionCompiler parent)
{
// Type compiler is always in context of it's type definition
Env = parent.Env;
Parent = parent;
var typeEnv = parent.TyconEnv.AddSelfTypeBoundArguments();
NameSupply = typeEnv.Type.Arity > 0 ? parent.NameSupply.Fork() : parent.NameSupply;
RootId = parent.RootId;
AssemblyId = parent.AssemblyId;
TypeDefinitionId = parent.TypeDefinitionId;
TypeId = typeEnv.Type.Arity > 0 ? NameSupply.GenSym() : parent.TypeDefinitionId;
TypeCompEnv = TypeCompilerEnvironment.EnterType(Env, NameSupply, RootId, AssemblyId, TypeId, typeEnv, parent.TypeTrace);
}
public TypeCompilerEnvironment EnterFunction()
{
var res = new TypeCompilerEnvironment
(Global,
SkolemDefs,
Assembly,
Type,
TypeBoundArguments,
env,
NameSupply.Fork(),
rootId,
assemblyId,
typeId,
TypeBoundTypeParameterIds,
typeTrace);
res.InheritBindings(this);
return(res);
}
public static TypeCompilerEnvironment EnterType
(CompilerEnvironment env,
JST.NameSupply nameSupply,
JST.Identifier rootId,
JST.Identifier assemblyId,
JST.Identifier typeId,
CST.TypeEnvironment typeEnv,
TypeTrace typeTrace)
{
var typeBoundTypeParameterIds = new Seq<JST.Identifier>();
for (var i = 0; i < typeEnv.Type.Arity; i++)
typeBoundTypeParameterIds.Add(nameSupply.GenSym());
var res = new TypeCompilerEnvironment
(typeEnv.Global,
typeEnv.SkolemDefs,
typeEnv.Assembly,
typeEnv.Type,
typeEnv.TypeBoundArguments,
env,
nameSupply,
rootId,
assemblyId,
typeId,
typeBoundTypeParameterIds,
typeTrace);
res.BindSpecial();
return res;
}
private void InheritBindings(TypeCompilerEnvironment outer)
{
foreach (var kv in outer.boundAssemblies)
boundAssemblies.Add(kv.Key, kv.Value);
foreach (var kv in outer.boundTypes)
boundTypes.Add(kv.Key, kv.Value);
}
public TypeCompilerEnvironment EnterFunction()
{
var res = new TypeCompilerEnvironment
(Global,
SkolemDefs,
Assembly,
Type,
TypeBoundArguments,
env,
NameSupply.Fork(),
rootId,
assemblyId,
typeId,
TypeBoundTypeParameterIds,
typeTrace);
res.InheritBindings(this);
return res;
}
public void EmitReflection(Seq<JST.Statement> body, TypeCompilerEnvironment innerTypeCompEnv, JST.Expression lhs)
{
var level = default(ReflectionLevel);
Env.AttributeHelper.GetValueFromType
(innerTypeCompEnv.Assembly,
innerTypeCompEnv.Type,
Env.AttributeHelper.ReflectionAttributeRef,
Env.AttributeHelper.TheReflectionLevelProperty,
true,
true,
ref level);
if (level == ReflectionLevel.None && innerTypeCompEnv.Type.IsAttributeType(Env.Global, innerTypeCompEnv.Assembly))
level = ReflectionLevel.Names;
if (level >= ReflectionLevel.Names)
{
if (Env.DebugMode)
body.Add(new JST.CommentStatement("Reflection"));
// ReflectionName
body.Add
(JST.Statement.DotAssignment
(lhs, Constants.TypeReflectionName, ReflectionNameExpression(body, innerTypeCompEnv, false)));
// ReflectionFullName
body.Add
(JST.Statement.DotAssignment
(lhs,
Constants.TypeReflectionFullName,
ReflectionNameExpression(body, innerTypeCompEnv, true)));
// ReflectionNamespace
body.Add
(JST.Statement.DotAssignment
(lhs,
Constants.TypeReflectionNamespace,
ReflectionNamespaceExpression(body, innerTypeCompEnv)));
if (level >= ReflectionLevel.Full)
{
// ReflectionMemberInfos
body.Add
(JST.Statement.DotAssignment
(lhs, Constants.TypeReflectionMemberInfos, MemberInfoExpression(body, innerTypeCompEnv)));
// CustomAttributes
body.Add
(JST.Statement.DotAssignment
(lhs,
Constants.TypeReflectionCustomAttributes,
CustomAttributesExpression
(body,
innerTypeCompEnv,
CST.MessageContextBuilders.Env(TypeCompEnv),
TypeCompEnv.Type.CustomAttributes)));
}
}
}
// Array of custom attributes
private JST.Expression CustomAttributesExpression(Seq<JST.Statement> body, TypeCompilerEnvironment innerTypeCompEnv, MessageContext ctxt, IImSeq<CST.CustomAttribute> attributes)
{
var objs = new Seq<JST.Expression>();
foreach (var attribute in attributes)
{
var obj = CustomAttributeExpression(body, innerTypeCompEnv, ctxt, attribute);
if (obj != null)
objs.Add(obj);
}
return new JST.ArrayLiteral(objs);
}
private JST.Expression ReflectionNameExpression(Seq<JST.Statement> body, TypeCompilerEnvironment innerTypeCompEnv, bool isFullName)
{
var nm = CST.CSTWriter.WithAppend
(Env.Global,
isFullName ? CST.WriterStyle.ReflectionFullName : CST.WriterStyle.ReflectionName,
innerTypeCompEnv.Type.EffectiveName(Env.Global).Append);
var lit = new JST.StringLiteral(nm);
if (innerTypeCompEnv.Type.Arity == 0)
return lit;
else
{
return JST.Expression.DotCall
(RootId.ToE(),
Constants.RootReflectionName,
lit,
new JST.ArrayLiteral
(innerTypeCompEnv.TypeBoundArguments.Select(t => innerTypeCompEnv.ResolveType(t, TypePhase.Id)).ToSeq()),
new JST.BooleanLiteral(isFullName));
}
}
private JST.Expression MemberInfoExpression(Seq<JST.Statement> body, TypeCompilerEnvironment innerTypeCompEnv)
{
var sharedMethodInfos = new Map<CST.MethodSignature, JST.Identifier>();
var id = default(JST.Identifier);
foreach (var propDef in Parent.Properties)
{
if (propDef.Get != null)
{
var infoExp = MethodInfoFromMethod(body, innerTypeCompEnv, innerTypeCompEnv.Type.ResolveMethod(propDef.Get));
if (infoExp != null)
{
id = innerTypeCompEnv.NameSupply.GenSym();
body.Add(JST.Statement.Var(id, infoExp));
sharedMethodInfos.Add(propDef.Get, id);
}
}
if (propDef.Set != null)
{
var infoExp = MethodInfoFromMethod(body, innerTypeCompEnv, innerTypeCompEnv.Type.ResolveMethod(propDef.Set));
if (infoExp != null)
{
id = innerTypeCompEnv.NameSupply.GenSym();
body.Add(JST.Statement.Var(id, infoExp));
sharedMethodInfos.Add(propDef.Set, id);
}
}
}
foreach (var eventDef in Parent.Events)
{
if (eventDef.Add != null)
{
var infoExp = MethodInfoFromMethod(body, innerTypeCompEnv, innerTypeCompEnv.Type.ResolveMethod(eventDef.Add));
if (infoExp != null)
{
id = innerTypeCompEnv.NameSupply.GenSym();
body.Add(JST.Statement.Var(id, infoExp));
sharedMethodInfos.Add(eventDef.Add, id);
}
}
if (eventDef.Remove != null)
{
var infoExp = MethodInfoFromMethod(body, innerTypeCompEnv, innerTypeCompEnv.Type.ResolveMethod(eventDef.Remove));
if (infoExp != null)
{
id = innerTypeCompEnv.NameSupply.GenSym();
body.Add(JST.Statement.Var(id, infoExp));
sharedMethodInfos.Add(eventDef.Remove, id);
}
}
}
var infoExps = new Seq<JST.Expression>();
foreach (var methodDef in Parent.Methods)
{
if (sharedMethodInfos.TryGetValue(methodDef.MethodSignature, out id))
infoExps.Add(id.ToE());
else
{
var infoExp = MethodInfoFromMethod(body, innerTypeCompEnv, methodDef);
if (infoExp != null)
infoExps.Add(infoExp);
}
}
foreach (var fieldDef in Parent.Fields)
{
var infoExp = FieldInfoFromField(body, innerTypeCompEnv, fieldDef);
if (infoExp != null)
infoExps.Add(infoExp);
}
foreach (var propDef in Parent.Properties)
{
var infoExp = PropertyInfoFromProperty(body, innerTypeCompEnv, sharedMethodInfos, propDef);
if (infoExp != null)
infoExps.Add(infoExp);
}
foreach (var eventDef in Parent.Events)
{
var infoExp = EventInfoFromEvent(body, innerTypeCompEnv, sharedMethodInfos, eventDef);
if (infoExp != null)
infoExps.Add(infoExp);
}
return new JST.ArrayLiteral(infoExps);
}
private JST.Expression EventInfoFromEvent(Seq<JST.Statement> body, TypeCompilerEnvironment innerTypeCompEnv, Map<CST.MethodSignature, JST.Identifier> sharedMethodInfos, CST.EventDef eventDef)
{
var slot = Env.GlobalMapping.ResolveEventDefToSlot(innerTypeCompEnv.Assembly, innerTypeCompEnv.Type, eventDef);
var slotExp = new JST.StringLiteral(Constants.ObjectEventSlot(slot));
return JST.Expression.DotCall
(RootId.ToE(),
Constants.RootReflectionEventInfo,
slotExp,
TypeId.ToE(),
new JST.BooleanLiteral(eventDef.IsStatic),
new JST.BooleanLiteral(!eventDef.IsStatic),
new JST.StringLiteral(eventDef.Name),
CustomAttributesExpression
(body, innerTypeCompEnv,
CST.MessageContextBuilders.Member(Env.Global, innerTypeCompEnv.Assembly, innerTypeCompEnv.Type, eventDef),
eventDef.CustomAttributes),
innerTypeCompEnv.ResolveType(eventDef.HandlerType, TypePhase.Constructed),
eventDef.Add == null || !sharedMethodInfos.ContainsKey(eventDef.Add)
? (JST.Expression)new JST.NullExpression()
: sharedMethodInfos[eventDef.Add].ToE(),
eventDef.Remove == null || !sharedMethodInfos.ContainsKey(eventDef.Remove)
? (JST.Expression)new JST.NullExpression()
: sharedMethodInfos[eventDef.Remove].ToE());
}
private JST.Expression PropertyInfoFromProperty(Seq<JST.Statement> body, TypeCompilerEnvironment innerTypeCompEnv, Map<CST.MethodSignature, JST.Identifier> sharedMethodInfos, CST.PropertyDef propDef)
{
var slot = Env.GlobalMapping.ResolvePropertyDefToSlot(innerTypeCompEnv.Assembly, innerTypeCompEnv.Type, propDef);
var slotExp = new JST.StringLiteral(Constants.ObjectPropertySlot(slot));
return JST.Expression.DotCall
(RootId.ToE(),
Constants.RootReflectionPropertyInfo,
slotExp,
TypeId.ToE(),
new JST.BooleanLiteral(propDef.IsStatic),
new JST.BooleanLiteral(!propDef.IsStatic),
new JST.StringLiteral(propDef.Name),
CustomAttributesExpression
(body, innerTypeCompEnv,
CST.MessageContextBuilders.Member(Env.Global, innerTypeCompEnv.Assembly, innerTypeCompEnv.Type, propDef),
propDef.CustomAttributes),
innerTypeCompEnv.ResolveType(propDef.FieldType, TypePhase.Constructed),
propDef.Get == null || !sharedMethodInfos.ContainsKey(propDef.Get) ? (JST.Expression)new JST.NullExpression() : sharedMethodInfos[propDef.Get].ToE(),
propDef.Set == null || !sharedMethodInfos.ContainsKey(propDef.Set) ? (JST.Expression)new JST.NullExpression() : sharedMethodInfos[propDef.Set].ToE());
}
private JST.Expression FieldInfoFromField(Seq<JST.Statement> body, TypeCompilerEnvironment innerTypeCompEnv, CST.FieldDef fieldDef)
{
if (Env.AttributeHelper.FieldHasAttribute
(innerTypeCompEnv.Assembly,
innerTypeCompEnv.Type,
fieldDef,
Env.Global.CompilerGeneratedAttributeRef,
false,
false))
// Ignore compiler-generate fields
return null;
var slot = Env.GlobalMapping.ResolveFieldDefToSlot
(innerTypeCompEnv.Assembly, innerTypeCompEnv.Type, fieldDef);
return JST.Expression.DotCall
(RootId.ToE(),
Constants.RootReflectionFieldInfo,
new JST.StringLiteral(slot),
TypeId.ToE(),
new JST.BooleanLiteral(fieldDef.IsStatic),
new JST.BooleanLiteral(!fieldDef.IsStatic),
new JST.StringLiteral(fieldDef.Name),
CustomAttributesExpression
(body,
innerTypeCompEnv,
CST.MessageContextBuilders.Member
(Env.Global, innerTypeCompEnv.Assembly, innerTypeCompEnv.Type, fieldDef),
fieldDef.CustomAttributes),
innerTypeCompEnv.ResolveType(fieldDef.FieldType, TypePhase.Constructed),
new JST.NullExpression());
}
private JST.Expression MethodInfoFromMethod(Seq<JST.Statement> body, TypeCompilerEnvironment innerTypeCompEnv, CST.MethodDef methodDef)
{
if (methodDef.TypeArity > 0)
// TODO: polymorphic methods
return null;
if (methodDef.Invalid != null || !methodDef.IsUsed ||
Env.InlinedMethods.IsInlinable(innerTypeCompEnv.Assembly, innerTypeCompEnv.Type, methodDef))
// This is possible if method is a getter/setter/adder/removed for a used property
// or event but the method itself is unused or inlined.
return null;
if (methodDef.IsOverriding)
// MethodInfo will have been supplied by supertype
return null;
var slot = Env.GlobalMapping.ResolveMethodDefToSlot(innerTypeCompEnv.Assembly, innerTypeCompEnv.Type, methodDef);
var attrs = CustomAttributesExpression
(body,
innerTypeCompEnv,
CST.MessageContextBuilders.Member
(Env.Global, innerTypeCompEnv.Assembly, innerTypeCompEnv.Type, methodDef),
methodDef.CustomAttributes);
var paramTypes = new JST.ArrayLiteral
(methodDef.ValueParameters.Skip(methodDef.IsStatic ? 0 : 1).Select
(p => innerTypeCompEnv.ResolveType(p.Type, TypePhase.Constructed)).ToSeq());
if (methodDef.IsConstructor)
return JST.Expression.DotCall
(RootId.ToE(),
Constants.RootReflectionConstructorInfo,
new JST.StringLiteral(slot),
TypeId.ToE(),
new JST.BooleanLiteral(!methodDef.IsStatic),
attrs,
paramTypes);
else
return JST.Expression.DotCall
(RootId.ToE(),
Constants.RootReflectionMethodInfo,
new JST.StringLiteral(slot),
TypeId.ToE(),
new JST.BooleanLiteral(methodDef.IsStatic),
new JST.BooleanLiteral(!methodDef.IsStatic),
new JST.StringLiteral(methodDef.Name),
attrs,
new JST.BooleanLiteral(methodDef.IsVirtualOrAbstract),
paramTypes,
new JST.BooleanLiteral(true),
methodDef.Result == null
? (JST.Expression)new JST.NullExpression()
: innerTypeCompEnv.ResolveType(methodDef.Result.Type, TypePhase.Constructed));
}
private JST.Expression ReflectionNamespaceExpression(Seq<JST.Statement> body, TypeCompilerEnvironment innerTypeCompEnv)
{
var nm = innerTypeCompEnv.Type.EffectiveName(Env.Global);
var lit = nm.Namespace.Length == 0
? (JST.Expression)new JST.NullExpression()
: (JST.Expression)new JST.StringLiteral(nm.Namespace);
if (innerTypeCompEnv.Type.Arity == 0)
return lit;
else
{
return JST.Expression.DotCall
(RootId.ToE(),
Constants.RootReflectionNamespace,
lit,
new JST.ArrayLiteral
(innerTypeCompEnv.TypeBoundArguments.Select(t => innerTypeCompEnv.ResolveType(t, TypePhase.Id)).ToSeq()));
}
}
// ----------------------------------------------------------------------
// Reflection
// ----------------------------------------------------------------------
// The object representing custom attribute
private JST.Expression CustomAttributeExpression(Seq<JST.Statement> body, TypeCompilerEnvironment innerTypeCompEnv, MessageContext ctxt, CST.CustomAttribute attr)
{
if (Env.AttributeHelper.IsSpecialAttribute(attr))
return null;
var attrTypeEnv = attr.Type.Enter(innerTypeCompEnv);
if (attrTypeEnv.Type.Invalid != null || !attrTypeEnv.Type.IsUsed)
{
Env.Log
(new UnimplementableFeatureMessage
(ctxt,
"custom attribute",
String.Format("Type '{0}' is not marked as [Used] or is invalid", attr.Type)));
return null;
}
var ctorDef =
attrTypeEnv.Type.Members.OfType<CST.MethodDef>().Where
(m =>
m.Invalid == null && m.IsUsed && m.IsConstructor && !m.IsStatic &&
m.Arity == attr.PositionalProperties.Count + 1).FirstOrDefault();
if (ctorDef == null)
{
Env.Log
(new UnimplementableFeatureMessage
(ctxt,
"custom attribute",
String.Format
("Type '{0}' does not have a constructor for {1} positional parameters",
attr.Type,
attr.PositionalProperties.Count)));
return null;
}
var ctorRef = new CST.MethodRef(attr.Type, ctorDef.MethodSignature, null);
var args = new Seq<JST.Expression>();
for (var i = 0; i < attr.PositionalProperties.Count; i++)
{
var t = attrTypeEnv.SubstituteType(ctorDef.ValueParameters[i + 1].Type);
var o = attr.PositionalProperties[i];
var e = Env.JSTHelpers.InitializerExpression(innerTypeCompEnv, ctxt, o, t);
args.Add(e);
}
var id = innerTypeCompEnv.NameSupply.GenSym();
body.Add(JST.Statement.Var(id));
Env.JSTHelpers.ConstructorExpression(innerTypeCompEnv, innerTypeCompEnv.NameSupply, body, id.ToE(), ctorRef, args);
foreach (var kv in attr.NamedProperties)
{
var stmnt = default(JST.Statement);
foreach (var memberDef in
attrTypeEnv.Type.Members.Where
(m => !m.IsStatic && m.Name.Equals(kv.Key, StringComparison.Ordinal)))
{
switch (memberDef.Flavor)
{
case CST.MemberDefFlavor.Field:
{
var fieldDef = (CST.FieldDef)memberDef;
if (fieldDef.Invalid == null && fieldDef.IsUsed)
{
var t = attrTypeEnv.SubstituteType(fieldDef.FieldType);
var o = kv.Value;
var e = Env.JSTHelpers.InitializerExpression(innerTypeCompEnv, ctxt, o, t);
var slot = Env.GlobalMapping.ResolveFieldDefToSlot
(attrTypeEnv.Assembly, attrTypeEnv.Type, fieldDef);
stmnt = JST.Statement.DotAssignment
(id.ToE(), new JST.Identifier(Constants.ObjectInstanceFieldSlot(slot)), e);
}
break;
}
case CST.MemberDefFlavor.Property:
{
var propDef = (CST.PropertyDef)memberDef;
if (propDef.Invalid == null)
{
var t = attrTypeEnv.SubstituteType(propDef.FieldType);
var o = kv.Value;
var e = Env.JSTHelpers.InitializerExpression(innerTypeCompEnv, ctxt, o, t);
if (propDef.Set != null)
{
var setMethodDef = attrTypeEnv.Type.ResolveMethod(propDef.Set);
if (setMethodDef != null && setMethodDef.Invalid == null && setMethodDef.IsUsed &&
setMethodDef.Arity == 2 && !Env.InlinedMethods.IsInlinable(innerTypeCompEnv.Assembly, innerTypeCompEnv.Type, setMethodDef))
{
var setMethodRef = new CST.MethodRef
(attr.Type, setMethodDef.MethodSignature, null);
stmnt = new JST.ExpressionStatement
(innerTypeCompEnv.MethodCallExpression
(setMethodRef,
innerTypeCompEnv.NameSupply,
false,
new Seq<JST.Expression>(id.ToE(), e)));
}
}
}
break;
}
case CST.MemberDefFlavor.Method:
case CST.MemberDefFlavor.Event:
break;
default:
throw new ArgumentOutOfRangeException();
}
}
if (stmnt == null)
{
Env.Log
(new UnimplementableFeatureMessage
(ctxt,
"custom attribute",
String.Format
("Type '{0}' does not have a field or set-able property for named parameter '{1}'",
kv.Key)));
}
else
body.Add(stmnt);
}
return id.ToE();
}