Commit graph

290 commits

Author SHA1 Message Date
6dceae73a0 Resolver - Additional checks
* Ensure all locals are defined before they are used.
  * Prevent functions declared using fun from being assigned to.
  * Mark locals as used when they are accessed.
2023-01-07 10:17:08 +01:00
a89be8632c Missed a rename in previous commit 2023-01-07 09:17:02 +01:00
95ddd34f9c Interpreter - Renamed resolved variables field 2023-01-07 09:01:24 +01:00
363cdab86f Interpreter - Fixed closures
* Environment for function execution is now based on their
    declaration.
  * I had missed that part while skimming over the book.
2023-01-07 08:59:13 +01:00
ec70ded29e Fixed variable lookups and assignments 2023-01-07 08:48:21 +01:00
3117dfeac5 Interpreter - Lookups and assignment based on resolver results
* Does not work. Using pointers was a bad idea.
2023-01-07 08:24:27 +01:00
bd156e619f Trying to implement variable lookup and failing hard
* I'll probably have to rewrite environments as a Vec<HashMap> to make
    things simpler
2023-01-06 08:05:33 +01:00
c97ad0ad7e Interpreter - Made the interpreter state partially public
* This allows Callable to be public, which is required for Value
  * State internals are still hidden behind pub(super)
2023-01-06 07:47:45 +01:00
10223cbb4e Interpreter - WIP refactor to prepare for using resolved variables 2023-01-05 07:54:18 +01:00
d528ce8dc3 Interpreter - Limited scope of some declarations 2023-01-05 07:21:43 +01:00
754659ed12 Resolver - Removed invalid fix mistakenly committed in 79a0667 2023-01-05 07:13:20 +01:00
c90731b62d Resolver - Comments 2023-01-05 07:12:21 +01:00
64bc8312dd Resolver - resolve_function() shouldn't be a method from ResolverState 2023-01-05 07:09:35 +01:00
b5573cee3b Resolver - Fixed off-by-one error in resolve_local() 2023-01-05 07:06:27 +01:00
79a0667f34 Resolver - Errors on duplicate declarations 2023-01-05 06:58:29 +01:00
c1a61b992d Scanner - Style clean-up 2023-01-05 06:43:54 +01:00
c5f099340b Errors refactoring - Code compiles. 2023-01-04 07:58:44 +01:00
743379c516 Errors refactoring for the iterpreter 2023-01-04 07:49:28 +01:00
7961a92ad1 Further attempts at refactoring the error handling code
* Everything's still broken though
2023-01-04 07:35:40 +01:00
0443754007 Parser - Refactored error handling 2023-01-03 23:07:49 +01:00
acb29e7123 Resolver - Refactored error handling 2023-01-03 22:50:47 +01:00
36ac55d286 Errors - ErrorKind to program exit code 2023-01-03 22:44:48 +01:00
a59dc21223 Errors - Result subtype using SloxError 2023-01-03 22:40:36 +01:00
d3398e5f79 Errors - Added ErrorKind::Scan 2023-01-03 22:40:24 +01:00
d0d4038272 Errors - ErrorHandler.report() consumes the error 2023-01-03 22:40:01 +01:00
260b19030f Scanner - Refactored to use new error handling 2023-01-03 22:38:57 +01:00
e152e40678 Errors - Refactoring
* This will break the whole thing but the error handling was getting
    quite messy.
2023-01-03 22:17:11 +01:00
1346e0ccf0 Resolver - Return the map of resolved variables 2023-01-03 12:56:40 +01:00
376f28044c Resolver - Fixed function handling
* Since the arguments are stored in an intermediate environment, an
    additional scope is required
2023-01-03 12:55:48 +01:00
5a12ce44c1 Resolver - Initial implementation
* Not sure about using pointers to Expr nodes in order to remember how
    they can be resolved.
  * Unused and untested.
2023-01-03 08:50:12 +01:00
c8be65dc4c Interpreter - Remove checks for duplicate argument names 2023-01-02 21:49:45 +01:00
29d3677b2a Parser - Detect duplicate argument names 2023-01-02 21:49:16 +01:00
db781ed00f HAPPY CLIPPY IS HAPPY!!!! 2023-01-02 21:44:02 +01:00
36c842d7ab Parser - Cleaning up after field removal 2023-01-02 21:40:30 +01:00
46389d2962 AST - Removed field missed in previous changes 2023-01-02 21:38:33 +01:00
f1145bfbdf Interpreter - Lambda support 2023-01-02 21:37:56 +01:00
0ef1318a35 Interpreter - Function name is optional (lambdas...) 2023-01-02 21:37:29 +01:00
ab46d0bcef AST - Removed useless field from Lambda 2023-01-02 21:36:50 +01:00
2881eb5a61 Parser - Lambda functions 2023-01-02 21:24:59 +01:00
4769a2a7f3 AST - Lambda functions 2023-01-02 21:01:45 +01:00
783c10067b Parser - Fixed parsing empty function parameters 2023-01-02 20:53:14 +01:00
12b2855fb1 Parser - Consume ';' after return statements 2023-01-02 20:48:38 +01:00
3dea0c9a45 Parser - Fixed can_use_return() 2023-01-02 20:47:12 +01:00
d6ea1c3099 Interpreter - Handle return value in functions 2023-01-02 20:46:34 +01:00
0de6b927b5 Interpreter - Return statement 2023-01-02 20:41:59 +01:00
3bd3c31210 Parser - Prevent return from being used outside of functions 2023-01-02 20:29:32 +01:00
0edabd4a48 Parser - Fixed loop parsing state in function bodies 2023-01-02 20:23:43 +01:00
549e93e9a9 Parser - Fixed comment 2023-01-02 20:21:52 +01:00
0290fbc226 Parser - Return statement 2023-01-02 20:20:47 +01:00
9b9103c170 AST - Added return statement 2023-01-02 20:16:14 +01:00