Commit Graph

64 Commits

Author SHA1 Message Date
Zachary Snow da2d4117f2 specialized parsing for parameter port lists
This adds support for typed valued parameters declared in parameter port
lists without explicitly providing a leading `parameter` or `localparam`
marker.
2021-08-20 18:08:14 -06:00
Zachary Snow 7ccab1c70a fix parsing of sized ports with implicit directions 2021-08-17 10:27:17 -06:00
Zachary Snow 4ded2a598d apply implicit port directions to tasks and functions 2021-08-15 12:25:32 -07:00
Zachary Snow 30acc3e3f9 fix spacing of as-patterns for future GHC upgrade 2021-08-12 16:13:12 -06:00
Zachary Snow e0d425d976 default implicit output ports to logic 2021-07-27 17:20:09 -04:00
Zachary Snow 3eefd03c8d additional declaration parsing errors
- general refactoring in decl parsing
- restrict charge strength to trireg
- require const vars to be initialized
- forbid const net declarations
- disallow run-on declarations in packages and classes
2021-07-09 15:41:17 -04:00
Zachary Snow a863321dd7 combine handling of concatenation LHSs 2021-07-06 21:20:44 -04:00
Zachary Snow 6381c3e050 minor type cleanup and fixes
- remove outdated flexible partial type eq and show instances
- properly disallow incomplete declarations
- disallow var after net type
- remove unused edge case in InterfaceT representation
2021-07-06 12:12:59 -04:00
Zachary Snow 5fd21ebfb0 improved parsing in declaration contexts
- support for additional assignment statements in loop initializations
- greatly improved error messaging in these contexts
- decl parser takes in the ending token; significant related refactoring
- pass through elaboration system tasks
- removed non-blocking assignment operator precedence hack
- preliminary nosim test suite for features unsupported by iverilog
2021-07-05 18:00:12 -04:00
Zachary Snow 6ee558b6b9 initial pass improving decl parsing error messages
- all decl tokens are given an accurate starting position
- key grammar productions return token positions to facilitate the above
- helpers for standardized parse error generation
- replaced annoying pattern-matching type argument restrictions
- moving away from dumping raw decl tokens in error messages
2021-07-03 13:23:33 -04:00
Zachary Snow ff0c7b026c properly distinguish nets and variables internally
- new net decl to replace net pseudo-type
- support nets with complex base types, including typenames
- support var declaration type prefix for all data types
- support var as lone type shorthand
- refactor AST representation of strengths
- traversal helpers for treating nets as variables
- use decl traversals where appropriate
2021-07-02 17:59:21 -04:00
Zachary Snow 0a65abd614 full support for package and class subroutine invocations 2021-05-29 22:34:03 -04:00
Zachary Snow 5a8801a45f allow trailing commas in parameter and port lists and bindings 2021-04-23 16:17:18 -04:00
Zachary Snow c0b8ba17de simplify interface port type representation 2021-04-13 10:45:26 -04:00
Zachary Snow 2a4d1cc5a8 more useful error message on bad stmt asgn 2021-04-08 00:42:18 -04:00
Zachary Snow 77b2f8b6ce improve for decl error messaging 2021-03-05 19:58:44 -05:00
Zachary Snow 2081f6a32a support attributes on port declarations 2020-12-08 11:28:28 -07:00
Zachary Snow 091520e4cd allow generate scoped basic subroutine invocations in statement blocks 2020-11-30 20:36:06 -07:00
Zachary Snow 359a3de91e parser rejects errant declarations 2020-07-22 21:35:25 -06:00
Zachary Snow d88c516d33 enhanced handling of number literals
- number literals are parsed rather than stored as strings
- fix array query functions used on non-trivial number literals
- more efficient expression simplification recursion
- expanded constant folding scenarios
2020-07-12 15:06:27 -06:00
Zachary Snow 69b2e86aee remove pattern synonyms which introduced excessive overhead 2020-07-09 21:01:18 -06:00
Zachary Snow 219a57c37b preliminary language support for parameterized class scopes 2020-07-08 17:46:37 -06:00
Zachary Snow 64f3067d78 allow dimension shorthand for instance arrays 2020-06-17 22:26:27 -04:00
Zachary Snow 3cfd368bc2 support multi-dimensional instances 2020-06-17 22:18:08 -04:00
Zachary Snow 12be569742 reduce usage of maybe 2020-06-14 15:56:09 -04:00
Zachary Snow fc9999aeea support implied port directions 2020-02-08 22:48:21 -05:00
Zachary Snow 9694799a23 more consistent procedural assignment support 2020-02-01 15:52:52 -05:00
Zachary Snow dd0eb5981d added source trace comments
- Trace comments cover module items, decls, and stmts
- Added pseudo-lexer to Alex parser for monadic Position production
- Added Position to every DeclToken
- Removed Comment PackageItem
- Added CommentStmt and CommentDecl
- Fixed traversal skipping outer MIAttr ModuleItems
- Generally cleaned up Parser modules
2020-01-30 22:17:17 -05:00
Zachary Snow 3597f4a6be support for methods (no conversion) and interface TFs 2019-10-19 16:22:46 -04:00
Zachary Snow b7959c7aa2 support for statement labels and basic fork-join 2019-09-30 23:03:55 -04:00
Zachary Snow d57c967090 added partial support for implicitly sized arrays 2019-09-28 16:57:36 -04:00
Zachary Snow 76663c78a0 fix typename decl asgn lookahead (resolves #49) 2019-09-25 19:34:42 -04:00
Zachary Snow 2d034dcb73 basic support for elaboration system tasks 2019-09-17 20:30:17 -04:00
Zachary Snow 7f701cd112 fixed dimension shorthand diretion and relevant tests 2019-09-15 16:30:53 -04:00
Zachary Snow 46242aac5d fix combined array declarations (resolves #34) 2019-09-11 19:32:12 +02:00
Zachary Snow 66989b0446 language support for parameter type bindings 2019-09-09 07:38:14 +02:00
Zachary Snow 7340464364 ParseDecl edge case 2019-09-02 22:57:57 -04:00
Zachary Snow 1f7c70dfe1 language support for LHS streaming operators 2019-09-02 20:46:35 -04:00
Zachary Snow 638adb3538 fixed ParseDecl mischaracterizing block decl as stmt 2019-09-01 18:40:24 -04:00
Zachary Snow 8f7968bf37 support data declarations with automatic lifetime (closes #20) 2019-08-31 15:36:27 -04:00
Zachary Snow bc23aebc55 added language support for package-scoped calls and typenames 2019-04-24 03:37:47 -04:00
Zachary Snow da38776d73 decls are now package items 2019-04-23 17:12:56 -04:00
Zachary Snow dca3a55fa6 support for indexed part select in first procedural Stmt 2019-04-08 22:02:49 -04:00
Zachary Snow fb3d68e339 propper support for indexed part select addressing 2019-04-05 13:53:52 -04:00
Zachary Snow dd89e5c9ea minor fixes 2019-03-30 01:56:57 -04:00
Zachary Snow 2314f97a96 support for call args with unnamed and named arguments 2019-03-30 01:27:48 -04:00
Zachary Snow e4efb4803b fix broken for inits parsing; beefed up relong test script to catch such mistakes 2019-03-27 03:33:28 -04:00
Zachary Snow 713fb8a658 support for more complex for loop components 2019-03-27 01:53:26 -04:00
Zachary Snow a803284be8 support for instantiations with a range 2019-03-25 19:06:35 -04:00
Zachary Snow cecd141e57 revamped support system with most SystemVerilog types and signed types 2019-03-22 17:45:31 -04:00