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65 Commits

Author SHA1 Message Date
Zachary Snow 95c2bc996c support for common non-ANSI style port declarations 
Specifically, support has been added for non-ANSI style port
declarations where the port declaration is separate from the
corresponding net or variable declaration.
 2021-09-06 21:10:49 -04:00
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- remove outdated flexible partial type eq and show instances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