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1810efb

$ cd util/ml-lex && make && cd ../..
$ cd util/ml-yacc && make && cd ../..
# This generates exactly the same files as MLton's mllex & mlyacc
$ util/ml-lex/ml-lex mlpolyr.lex && util/ml-lex/ml-yacc mlpolyr.grm
$ make ML_State # build heap
$ make load
poly --eval 'PolyML.SaveState.loadState "ML_State";'
Poly/ML 5.8 Release
val it = (): unit
> use "parse";
Exception- Overflow raised
Exception- Overflow raised

WTF？

The issue's on these two functors applications:

Maybe I should try if this could be reproduced with MLton...

See 36d8c33

Most part of smlnj-lib can run on polyml after minor patches, porting to poly has following benefits:

• standalone executable #2
• 64 bit support
• clean up code
• better debugger
• I can compile poly on my Mac but it does not apply to smlnj

Now we have a lambda rep based interpretation, however it is buggy and limited in certain ways:

• It doesn't implement runtime I/O, and because the type checker requires top-level to be integer, it can only do integer arithmetic.

• It can't even do integer arithmetic right, because the design represents integer as even number Int32 so it can be distinguished from pointers, which uses odd number Int32, and the the convention's done at parsing time, but the lambda interpreter is written for regular integers.

LLVM? GRIN? Cmm? I mean a compiled and optimized type-checked program is desirable.

LdBeth/mlpolyr#5