version 0.7.0
This commit is contained in:
Andreas Rumpf
parent
972c510861
commit
8b2a9401a1
185 changed files with 21451 additions and 24296 deletions
236
todo.txt
236
todo.txt
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@ -5,53 +5,63 @@ RST
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---
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- footnotes; prefix :i: whitespace before :i:, _reference, `reference`__
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__ anonymous: www.nimrod.org
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- don't generate <p></p> if it is not allowed by the HTML standard; switch to
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<br /> for those parts; this is pretty easy to fix
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Bugs
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----
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- BUG: bootstrapping does not work with LCC, PCC
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- BUG: aliasing of object types does not work properly (easy?)
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- BUG: lookup rules for overloadable symbols are wrong
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- BUG: sigmatch for ``len`` matches the open array too often... *sigh*
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- BUG:
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for j in 0 .. a.len + b.len - 1: nil
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where a and b are open arrays does not compile
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- BUG: ["sh", "-c", someProcWithOpenArray(openArr)] produces wrong C code
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- BUG: bootstrapping does not work with Borland C
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- BUG: addr/deref does not work when interpreting
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- BUG: Check that pure procs only consist of asm statements (and comments)
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- ``repr`` for ECMAScript target; other known bugs for the ECMAScript target
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- BUG: tlastmod returns wrong results on BSD (Linux, MacOS X: works)
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- BUG: the parser allows empty statements/object case branches
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- BUG: when optmizing cgen.c with Visual C++, GCC, LLVM (O3), it breaks.
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- BUG: ``-cc:bcc`` command line option does not error
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- BUG: symbol files still do not work
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High priority
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-------------
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- documentation: var types, ``[]`` overloading, ``cast`` and type convertions,
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``if`` expresssions, (anonymous) procs
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- implement two-phase lookup for generics (this is hard...): This is useful
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for macros too!
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- replace ``seq = []; setLen(seq, x)`` by
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built-in ``newSeq[T](s: var seq[T], len: int)``
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or ``repeat[T](len: int, initVal: T): seq[T]``
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- ``is`` operator is missing
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- implement closures for the C code generator; ECMAScript already has it
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for macros too! Alternative: Explicit early name binding. Both is hard to
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implement
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- implement closures for the C code generator
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- get rid of ``nkHiddenStdConv`` in several places: this mechanism caused more
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bugs than it ever solved!
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Library
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-------
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- xml, html, url, cgi, fastcgi: implement from scratch
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- unicode library
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- socket library (does SDL for us?)
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- osproc for Windows
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- bignums
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- python
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Low priority
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------------
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- use `` notation for identifier concatenation?
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- Visual C++: emit ``default: __assume(0);`` for optimization
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- ``nkTempAsgn``-node as optimization
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- better code generation for const data
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- make set optimizations part of the transformation (--> all backends profit
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from it)
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- macros: ``typecheck`` pragma; this is really a good idea! This allows
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transformations based on types!
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- make callconv a set
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- pasparse.nim: fixVarSection() loses its comment!
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- partial generic instantation is missing
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- commas are not optional any longer as this may lead to bugs (which?)
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- get code generation for C++ exception handling right!
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- implement the simple and cheap to implement module cache (default: disabled!)
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- find a way for easy constructors and destructors; though constructors are
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flawed... destructors are not, however!
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- multiple dispatch
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- LIB: stream implementation - the compiler should use it too!
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- stress testing of ECMAScript code generator
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- rewrite sigmatch or fix it; generics and macros are somehow dumb. Who needs
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generics if the power of macros lie at our feet?
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- replace appropriate asserts by internal errors!
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Changelog
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@ -188,41 +198,146 @@ Changelog
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appropriately
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- parseopt, hashes, strtabs and parsecfg in the Standard library
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- introduced splitting for long entries in TOC
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- implemented profiling support
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- removed cfilecache switch (-f does the same)
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- implemented acyclic pragma (even for the Pascal parser)
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- implemented thread local variables
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- improved cycle detection in types module
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- huge optimization of GC
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- added ``c`` and ``cc`` short commands
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- zlib binding added
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- SDL binding added
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- Xlib binding added
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- OpenGL binding added
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- ODBC binding added
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- Lua binding added
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- BUGFIX: ``len`` for cstring now works as expected
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- changed type names in the Cairo binding
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- implemented ``noinline`` calling convention
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- BUGFIX in sigmatch concerning compability of proc types
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- BUGFIX: some C compiler optimzed the ``setjmp`` call in the GC away
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with horrible consequences!
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- BUGFIX: $vars work in the C compiler path again
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- ``compileTime`` pragma
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- ``nkStmtListType`` node for macros
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- removed ``nostatic`` pragma
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- separate compilation!
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- BUGFIX: aliasing of object types now works properly
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- BUGFIX: ccgtypes: generation for var-types was not correct
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- BUGFIX: debugger now works again
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- nil for variant objects
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- BUGFIX: posix module was broken for Mac OS X, because it lacks realtime
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support
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- BUGFIX: docgen now replaces ``"`` by ``"e;``
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- BUGFIX: ccgexprs: passToOpenArray
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- BUGFIX: regexprs module compiles again
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- BUGFIX: Bug in ``isAssignable`` need to check dest type, not source type
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- BUGFIX: ccgtypes: isInvalidReturnType
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- streams module
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- BUGFIX: rawReadLine should not return nil for EOF
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- BUGFIX: ``lookup`` did not check for ambigious identifiers
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- BUGFIX: ``isMainModule`` is not ambigious any longer
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- overloading resolution now takes place in a few more cases; see
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tests/tambsym2 for an example
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- implemented ``is`` operator
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- improved error messages if an OS request failes
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- BUGFIX: ``extractFilename``, ``extractDir``
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- implemented ``newSeq``, compiler already uses it
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- changed integer conversion handling; breaks code compability again! (For the
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last time, I promise)
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- now all magics are kept in the system module
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- ported to FreeBSD
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- the ``koch.py`` script now should be more portable to 1.5.2 Python
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- BUGFIX: lookup: `opr` now supported
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- changed the installation scheme
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- improved the ID mechanism; too difficult to explain here
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- BUGFIX: ``--cc`` now resets compile and link options
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- Finally found the bug that keeps Visual C++ from compiling a working
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executable with its optimizer: index checks for strings and sequences
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need to be turned on, otherwise it breaks. This has probably to do
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with C aliasing rules.
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- BUGFIX: aliasing rules for strings and sequence should now be respected;
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they both inherit from ``TGenericSeq`` now. This still does not fix
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the serious Visual C bug.
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- BUGFIX: inheritance from final objects is forbidden, not the other way
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round
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- ccgexprs: special cases for string ``==``
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- ccgstmts: ``while true`` generates less C code
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- C code generator: Merged constant data, otherwise too much code is
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generated
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- C code generator: fixed a long-standing bug in ``genObjectInit``.
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- extccomp: C optimization can be disabled for certain files.
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- BUGFIX: cgen: result sometimes not initialized (?)
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- ``define`` and ``undef`` pragmas are now deprecated
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- ``isMainModule`` now in system module and works via compiler magic
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- implemented simple and powerful template engine; built into the Nimrod
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compiler
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- BUGFIX: tuple constructor did not always work
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- BUGFIX: wrong C code generated for ``openarray[array[]]``
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- now much more efficient C code is generated for constant expressions
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- BUGFIX: sometimes the C generator generated conflicting names
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- optimization of string concatenations
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- BUGFIX: docgen: last enum field may lose its comment
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- the compiler now uses streams internally
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- changed the style of the generated documentation
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- BUGFIX: rodgen: stacks would not be properly processed
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- cggexprs: string literals for field checks are reused
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- ccgtypes: typeNameOrLiteral takes care of magics
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- ccgtypes: support for incremental compilation
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- The C code generator now uses the ast.gid for ID generation. This is needed
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for proper incremental compilation.
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- ccgtypes: new change for incremental compilation
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- polished templ system
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- BUGFIX: walkFiles does not error if no matching files found
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- BUGFIX: ``os.copyFile``
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- reworked integer conversions
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- added ``GC_ref`` and ``GC_unref`` procs
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- implemented `zipfiles` module
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- BUGFIX: ``$`` now generates efficient code
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- BUGFIX: C's ``sizeof`` returns an unsigned, the generated code now casts
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- BUGFIX: trectype never worked, now at the least the compiler does not crash
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- BUGFIX: times module returned a newline for the `$` operator
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- sequences now need to be constructed with ``@[]``
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- changed the ``rod_gen`` to the ``nimcache`` mechanism, so the compiler does
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not need to have write access to its directory
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- BUGFIX: createDir now works for sub directories
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- changed configuration file handling, so that UNIX-like installations are
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possible
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- BUGFIX: ``ParseFloat`` now supports ``inf`` and ``nan``
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- the type information code is now smaller (helps GCC's compile times!)
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- BUGFIX: constant evaluation for mRepr is not possible
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- refactored the semantic phase into separate modules
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- BUGFIX: wrong indexing in ``genSetConstr``
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- used a node flag to avoid multiple transformation passes over the same tree:
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this flag is cleared when copying nodes
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- special case for ``sameType``
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- changed order for optimization of ``semMagic``
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- optimized ``semexprs.genCall``
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- implemented a new passes manager which saves a lot of memory
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- OPT: GC now MUCH faster, still room for improvement though
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- OPT: ``system.objectInit`` is now only called iff strictly necessary
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- OPT: the write barrier can now be inlined by GCC
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- OPT: Nimrod version of ``addSon`` optimized
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- parsecfg, lexbase now use streams
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- the config file now supports ``ccname.exe`` and ``ccname.linkerExe``
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configuration for changing the GGC version
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- BUGFIX: typo for ``succ`` code generation without checks
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- fixed many bugs in ``os`` module for Windows
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- bug in ``semVar`` removed standard convertions
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- BUGFIX: ``setLen`` for sequences may lead to memory leaks
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For the next versions
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=====================
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- separate compilation!
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- multi-processor support
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- tuple assignment
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- more Parser/Renderer combinations
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- IDE
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- better support for GDB
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- support for Boehm's GC
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- support for dynamic libraries
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Documentation to be written
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===========================
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- document generics
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- document (anonymous) procs
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Implementation details
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======================
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- {a} can lead to an memory overwrite if a is not in range of
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set basetype?
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Optimizations
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=============
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- optimization of GC: types that cannot be involved in cycles should
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not be stored in the AT; this does not work because the AT is needed
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for stack checking!
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- better: generational GC for cycles
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- optimize range checks away (and out of bounds checks!)
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- better support for GDB?
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- support for generation of dynamic libraries
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- better code generator: skip ropes datastructure, it uses too much memory
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- make set optimizations part of the transformation (--> all backends profit
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from it), but this really needs a more abstract code generator
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Further ideas/nice to have
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@ -232,30 +347,7 @@ Further ideas/nice to have
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- CLR code generator; better use XYZ? --> Version 1.2?
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- provide an interactive shell: if the user wants his commands
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to be executed, the command should end with #
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- multi-threaded programming
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- support for Boehm's GC
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- add the built-in 'finalize'
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- implement packed arrays (bit arrays)/ packed records
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- implement tables (implement as library? - no! Builtin because of
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constructor syntax is nice to have)
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- each compilation unit (proc, top-level-statement, etc.)
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needs the options stored with them (for procs already done)
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Planned libraries
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=================
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- generic algorithm library (trees, tables, etc.)
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- An Unicode library (UTF8)
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- Binding for Opengl library (should be easy)
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- Binding for Sockets library (which one?)
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- XML parser; cgi module; fast cgi module
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- a good/extensive math library
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- neuronal network library; genetic algorithms
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- HTML parser
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- URL library
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- mySQL, sqlite interface
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- extensive platform independant AdvancedOS library
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- code generator for SQL-Schemes? ("Hibernate" done right)
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- mathematical expression parser (with lookup table for identifiers)
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- YAML parser (use generic AST for this)
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