-BUGS
-----
+TODO:
-* Returning from exception blocks.
+ 1. Create a "partial" emit context for each TypeContainer..
- Exception blocks can not actually "return", they have
- to "leave" to the end of the routine.
+ 2. EmitContext should be partially constructed. No IL Generator.
- If they need to return a value, the return value is stored in
- a temporary variable, and the final code, loads this value on
- the stack and returns.
+ Optimize the internal type expressions in the parser (system_object, etc)
+ to be something other than DecomposeQI-based expressions.
-* Reworking return values.
+ interface_type review.
- To implement the above we need to rework the return mechanism.
+ parameter_array, line 952: `note: must be a single dimension array type'. Validate this
-* Adding variables.
+Dead Code Elimination bugs:
+---------------------------
- We do add variables in a number of places, and this is erroneous:
+ I should also resolve all the children expressions in Switch, Fixed, Using.
- void a (int b)
- {
- int b;
- }
+Major tasks:
+------------
- Also:
+ Pinned and volatile require type modifiers that can not be encoded
+ with Reflection.Emit.
- void a (int b)
- {
- foreach (int b ...)
- ;
- }
+ Properties and 17.6.3: Finish it.
-* Visibility
+ Implement base indexer access.
- I am not reporting errors on visibility yet.
+readonly variables and ref/out
+
+BUGS
+----
-* Interfaces
+* We suck at reporting what turns out to be error -6. Use the standard error message
+ instead.
- For indexers, the output of ix2.cs is different from our
- compiler and theirs. They use a DefaultMemberAttribute, which
- I have yet to figure out:
+* Explicit indexer implementation is missing.
- .class interface private abstract auto ansi INTERFACE
- {
- .custom instance void [mscorlib]System.Reflection.DefaultMemberAttribute::.ctor(string)
- = ( 01 00 04 49 74 65 6D 00 00 ) // ...Item..
- ...
- }
+* Check for Final when overriding, if the parent is Final, then we cant
+ allow an override.
* Interface indexers
Explanation: The reason for the `instance' attribute on
indexers is that indexers only apply to instances
-* Handle destructors specially
-
- Turn ~X () { a () } into:
- void Finalize () { try { a (); } finally { base.Finalize (); } }
-
- The code is mostly done, but `base' is missing. The reason it is
- missing is because we have to implement visibility first.
-
-* Method Names
-
- Method names could be; `IFACE.NAME' in the method declaration,
- stating that they implement a specific interface method.
-
- We currently fail to parse it.
-
-* Namespaces
-
- Apparently:
-
- namespace X {
- }
-
- namespace X {
- }
-
- Is failing to create a single namespace
-
- >> This has been fixed. Test #33 tests this functionality
-
-* Arrays
-
- We need to make sure at *compile time* that the arguments in
- the expression list of an array creation are always positive.
-
-* Implement dead code elimination in statement.cs
-
- It is pretty simple to implement dead code elimination in
- if/do/while
-
* Indexer bugs:
the following wont work:
They should transfer control to the finally block if inside a try/catch
block.
-* Conversions and overflow
+* Method Registration and error CS111
+
+ The way we use the method registration to signal 111 is wrong.
+
+ Method registration should only be used to register methodbuilders,
+ we need an alternate method of checking for duplicates.
+
+* We need to catch:
+
+ extern string Property {
+ get { }
+ }
- I am not using the checked state while doing type casts,
- they should result in conv.ovf.XXX
+ The get there should only have a semicolon
+
+*
+> // CSC sets beforefieldinit
+> class X {
+> // .cctor will be generated by compiler
+> public static readonly object O = new System.Object ();
+> public static void Main () {}
+> }
+>
PENDING TASKS
-------------
- * Implement explicit interface implemenation.
+* IMprove error handling here:
- * Implement Goto.
+ public static Process ()
- * Unsafe code.
+ THat assumes that it is a constructor, check if its the same name
+ as the class, if not report a different error than the one we use now.
- * Implement `base' (BaseAccess class)
+* Merge test 89 and test-34
-* OUT Variables passed as OUT variables.
+* Revisit
- Currently we pass the pointer to the pointer (see expression.cs:Argument.Emit)
+ Primary-expression, as it has now been split into
+ non-array-creation-expression and array-creation-expression.
+
+* Static flow analysis
-* Function Declarations
+ Required to warn about reachability of code and definite
+ assignemt as well as missing returns on functions.
- Support PINvoke/Internallcall and extern declarated-functions.
+* Code cleanup
-* Manual field layout in structures
+ The information when registering a method in InternalParameters
+ is duplicated, you can always get the types from the InternalParameters
-* Make the rules for inheritance/overriding apply to
- properties, operators and indexers (currently we only do this
- on methods).
+* Emit modreq for volatiles
-* Handle volatile
+ Handle modreq from public apis.
-* Support Re-Throw exceptions:
+* Emit `pinned' for pinned local variables.
- try {
- X ();
- } catch (SomeException e){
- LogIt ();
- throw;
- }
+ Both `modreq' and pinned will require special hacks in the compiler.
-* Static flow analysis
+* Make sure that we are pinning the right variable
- Required to warn about reachability of code and definite
- assignemt as well as missing returns on functions.
-
-* Implement `goto case expr'
+* Maybe track event usage? Currently I am not tracking these, although they
+ are fields.
+* Merge tree.cs, rootcontext.cs
OPTIMIZATIONS
-------------
-* Emitcontext
+* Implement loop inversion for `For' as well.
- Do we really need to instanciate this variable all the time?
+* There is too much unshared code between MemberAccess.Resolve and SimpleName
+ resolve.
+
+* User Defined Conversions is doing way too many calls to do union sets that are not needed
- It could be static for all we care, and just use it for making
- sure that there are no recursive invocations on it.
+* Add test case for destructors
+
+* Places that use `Ldelema' are basically places where I will be
+ initializing a value type. I could apply an optimization to
+ disable the implicit local temporary from being created (by using
+ the method in New).
-* Static-ization
+* Dropping TypeContainer as an argument to EmitContext
- Since AppDomain exists, maybe we can get rid of all the stuff
- that is part of the `compiler instance' and just use globals
- everywhere.
+ My theory is that I can get rid of the TypeBuilder completely from
+ the EmitContext, and have typecasts where it is used (from
+ DeclSpace to where it matters).
+ The only pending problem is that the code that implements Aliases
+ is on TypeContainer, and probably should go in DeclSpace.
-* Constructors
+* Casts need to trigger a name resolution against types only.
- Currently it calls the parent constructor before initializing fields.
- It should do it the other way around.
+ currently we use a secret hand shake, probably we should use
+ a differen path, and only expressions (memberaccess, simplename)
+ would participate in this protocol.
-* Reducer and -Literal
+* Use of local temporary in UnaryMutator
- Maybe we should never handle -Literal in Unary expressions and let
- the reducer take care of it always?
+ We should get rid of the Localtemporary there for some cases
+
+* Emitcontext
+
+ Do we really need to instanciate this variable all the time?
+
+ It could be static for all we care, and just use it for making
+ sure that there are no recursive invocations on it.
* Use of EmitBranchable
Currently I use brfalse/brtrue in the code for statements, instead of
using the EmitBranchable function that lives in Binary
-* Create an UnimplementedExpcetion
-
- And use that instead of plain Exceptions to flag compiler errors.
-
* ConvertImplicit
Currently ConvertImplicit will not catch things like:
Write tests for the various reference conversions. We have
test for all the numeric conversions.
-* Remove the tree dumper
-
- And make all the stuff which is `public readonly' be private unless
- required.
-
* Optimizations
In Indexers and Properties, probably support an EmitWithDup
in the stack, so that later a Store can be emitted using that
this pointer (consider Property++ or Indexer++)
+* Optimizations: variable allocation.
+
+ When local variables of a type are required, we should request
+ the variable and later release it when we are done, so that
+ the same local variable slot can be reused later on.
* Add a cache for the various GetArrayMethod operations.
-* Use of temporary values in Assign
+* TypeManager.FindMembers:
- We generate suboptimal code for assignments, as we always
- store the result in a temporary.
+ Instead of having hundreds of builder_to_blah hash table, have
+ a single one that maps a TypeBuilder `t' to a set of classes
+ that implement an interface that supports FindMembers.
- When implenenting `using' on
+* MakeUnionSet Callers
- using (a = new XXX)
+ If the types are the same, there is no need to compute the unionset,
+ we can just use the list from one of the types.
- Two instances of XXX were created, we need to research this.
+* Factor all the FindMembers in all the FindMembers providers.
+
+* Factor the lookup code for class declarations an interfaces
+ (interface.cs:GetInterfaceByName)
- //
- // FIXME! We need a way to "probe" if the process can
- // just use `dup' to propagate the result.
- //
- // I Think I figured this out, have EmitAssign take an
- // argument: leave result on stack or not. If true,
- // then we can dup ahead of time if we know about this,
- // and we get rid of the temporary value
- //
-
RECOMMENDATIONS
---------------
Not sure that this grammar is correct, we might have to
resolve this during semantic analysis.
+* Idea
-* Try/Catch
+ MethodGroupExpr
- Investigate what is the right value to return from `Emit' in
- there (ie, for the `all code paths return')
-
+ These guys should only appear as part of an Invocation, so we
+ probably can afford to have a special callback:
-* Optimizations
+ Expression.ResolveAllowMemberGroups
- Only create one `This' instance per class, and reuse it.
+ This is only called by Invocation (or anyone that consumes
+ MethodGroupExprs)
- Maybe keep a pool of constants/literals (zero, 1)?
+ And the regular DoResolve and DoResolveLValue do emit the error
+ 654 `Method referenced without argument list'.
+ Otherwise, a resolution will return a MethodGroupExpr which is
+ not guaranteed to have set its `Expression.Type' to a non-null
+ value.
projects / mono.git / blobdiff