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schala
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1110 Commits

Author SHA1 Message Date
greg 7c27cace9f Add note 2018-09-17 00:03:29 -07:00
greg 23c54ae186 proc macro feature no longer needed 2018-09-10 21:28:34 -07:00
greg 015840ac38 Get program compileable 2018-09-10 21:28:14 -07:00
greg b8487aa0d4 Add note from Sergei W. on subtyping 2018-09-10 21:01:56 -07:00
greg bac5761534 Add a note 2018-09-06 02:12:37 -07:00
greg 926631ba8f Pattern matching experimental code 
WIP
 2018-08-29 03:00:54 -07:00
greg 1abbe2e448 Add guard to Alternative 
The semantics are:
    -if tag is Some(_), assume the condition is a constructor,
    and compare tags
    - if guard is Some(_), evaluate true/false *after* having
    applied any bound variables

With this, I can technically get rid of bare conditionals now, since
they are the same as an Alternative with a None tag
 2018-08-27 12:45:08 -07:00
greg 065bdd6bda Starting custom operators 
Can now parse custom operators. Maybe I want to make it so that you
have to put explicit backticks if you define a custom operator,
currently you can just do: fn +() { .. }
 2018-08-24 16:49:59 -07:00
greg e125e8b440 Add spaceship operator for getting an ord 2018-08-24 16:29:28 -07:00
greg 8565c7dfb3 Some work on reduced ast pattern 2018-08-24 16:04:18 -07:00
greg f885d5dfb6 Remove type alias 2018-08-22 23:22:08 -07:00
greg b85725125c Start using HalfExp 2018-08-22 16:41:31 -07:00
greg 2d961d6402 Fix other pattern parsing bugs 2018-08-21 20:02:10 -07:00
greg fa7b6ce96b Handle negatives in patterns correctly 2018-08-21 19:57:45 -07:00
greg 5c9180efc2 Some updates to Schala source files 2018-08-20 19:03:55 -07:00
greg 1d5e5aa735 Some type renaming in builtins 
Builtins will remain entirely separate from the actual type
representation, whatever that ends up being
 2018-08-19 22:00:20 -07:00
greg 2c298c7247 Add warning for undefined operator 
In practice this will probably always not typecheck, but it's a valid
parse
 2018-08-19 21:40:30 -07:00
greg f00fee0e37 Rename StateStack -> ScopeStack 2018-08-19 21:31:45 -07:00
greg 0d13b5e3bc Preliminary support for binops in if-discriminators 
The BNF grammar is a bit more liberal than any successfully-compiled
schala program should be, in that it allows things like `if x < is
pattern`. It's okay if that parses successfully and then is an error at
typechecking.
 2018-08-19 21:25:07 -07:00
greg 98f597f00a Implement comparison operators correctly 2018-08-19 21:11:43 -07:00
greg fb71881409 Refactor binop parsing 2018-08-19 20:33:50 -07:00
greg d1c3b4a81b Starting on halfexprs / binops 2018-08-19 18:44:54 -07:00
greg f9181b5786 use expr_or_block where appropriate 2018-08-19 15:58:31 -07:00
greg 0e914cf057 Error message for parsing guards 2018-08-19 15:12:34 -07:00
greg 04ea8c5ebc More unused code removal 2018-08-19 15:06:01 -07:00
greg 492ef4ae19 Clear up some unused code to reduce compile noise 
And add some notes to the README
 2018-08-19 15:03:41 -07:00
greg 75a7a4499d Added some more cases to the match handling 2018-08-19 10:53:43 -07:00
greg 99e6668c9a Add rusty-tags to .gitignore 2018-08-18 23:28:06 -07:00
greg 1d38a07cf8 Add timing debugging print 2018-08-16 01:47:21 -07:00
greg 0fa844bcf9 Print timing in debug info 2018-08-16 01:43:42 -07:00
greg 97bee58fbe More work with guards 2018-08-15 22:34:04 -07:00
greg 34c2b43371 More work on if matching 2018-08-15 18:32:44 -07:00
greg 88b617de52 More atlernatives work 2018-08-15 11:44:55 -07:00
greg 482674b19a Start on expr_or_block 
WIP doesn't work yet
 2018-08-15 09:34:00 -07:00
greg a72b387ceb Remove some more dead code warnings 2018-08-14 23:19:27 -07:00
greg 864e932e9f Getting rid of more unused items 2018-08-14 23:09:11 -07:00
greg d7e73be44c Getting rid of some unused warnings 2018-08-14 23:07:00 -07:00
greg 6a548c9086 Keep track of durations of each pipeline stage 2018-08-14 22:56:22 -07:00
greg 0c0690e86e Provide error message here 2018-08-14 21:53:57 -07:00
greg 6d18f80185 Use Result in test 2018-08-14 21:46:48 -07:00
greg 6825de3916 new_frame -> new_scope 2018-08-14 21:45:45 -07:00
greg 1b78fbff82 Tests for basic pattern matching 2018-08-14 21:39:33 -07:00
greg 897c1181a9 Basic pattern matching working 2018-08-14 21:17:43 -07:00
greg 6833bc4f00 Start on CaseMatch eval 2018-08-14 12:43:06 -07:00
greg f2ded78776 ReducedAST: Match -> CaseMatch 
makes it easier to grep for
 2018-08-14 12:37:18 -07:00
greg 9debdd8d66 Primitive tuple 2018-08-14 02:03:05 -07:00
greg 8067c862f3 Switch out types for evaluator 2018-08-14 00:11:13 -07:00
greg f9c2fc3f9d Make code more concise 2018-08-07 17:09:53 -07:00
greg 5ead1e5d44 NewConstructor -> Constructor 2018-08-05 19:14:02 -07:00
greg 348a6f7c76 More work on pattern-matching 
I think I need to entirely change the types in the evaluator.
ReducedAST should only care about NewConstructor (which I gotta rename),
and the evaluator is the only place that an implementation of a
primitive constructed type should live (see Peyton-Jones implementing a
functional langauge p. 70)
 2018-08-05 19:11:42 -07:00