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101 Commits
Author SHA1 Message Date
Diego Augusto MolinaandGitHub a23efbf4d0 fix VM not clearing memory references when reused (#813) 2025-07-05 13:46:48 +02:00
Anton MedvedevandGitHub 037ef3dc3d Add expr.MaxNodes() option (#799) 
* Add expr.MaxNodes() option

* Fix error message

* Add more tests and comments
 2025-06-03 17:31:46 +02:00
Anton Medvedev 31f0ab00dc Remove duplicated dereferences 2025-03-10 13:52:54 +01:00
Anton Medvedev 3d52b8e334 Fix func calls with nil types value 
Fixes #688
 2025-03-08 13:54:55 +01:00
Anton Medvedev b42839dddb Remove additional run API (RunWithConfig) from VM 
This API was introduced in previous PR, but we do not want to expose it.
 2025-03-07 15:06:45 +01:00
Ville VesilehtoGitHubAnton Medvedev
 		9dd86858e1 feat: add node budget and memory limits (#762) 
* feat: add node budget and memory limits

Implement compile-time and runtime safeguards against deeply nested expressions:

- Add MaxNodes limit to track and limit AST node count during parsing
- Move MemoryBudget from VM to Config for better configurability
- Add node creation tracking in parser to enforce node budget
- Refactor node creation to check limits before allocation
- Add RunWithConfig to VM for passing memory budget settings
- Set reasonable defaults in Config (10000 nodes, 1M memory)
- Add comprehensive tests for both node and memory limits

This prevents stack overflows from malicious or poorly written expressions
by failing fast with clear error messages during compilation or runtime.

Signed-off-by: Ville Vesilehto <[email protected]>

* Update parser.go

Signed-off-by: Anton Medvedev <[email protected]>

---------

Signed-off-by: Ville Vesilehto <[email protected]>
Signed-off-by: Anton Medvedev <[email protected]>
Co-authored-by: Anton Medvedev <[email protected]>
 2025-03-07 14:09:41 +01:00
Anton MedvedevandGitHub 19b2c3848f Add checks for nil before string casts in VM (#654) 2024-05-17 19:40:20 +02:00
Anton MedvedevandGitHub 46d295876f Add spans 2024-02-29 20:51:34 +01:00
Anton MedvedevandGitHub 0d43107999 Add concat() builtin (#565) 
* Add concat() builtin

* Use pkg deref in builtin

* Use pkg deref in checker

* Use pkg deref in types_table.go

* Use pkg deref in docgen.go

* Use pkg deref in vm
 2024-02-16 22:32:35 +01:00
Anton MedvedevandGitHub b1e82de54a Refactor groupBy and sortBy (#562) 
* Rearrange opcodes

* Refactor groupBy

* Fix tests

* Super opcodes for GroupBy

* Refactor sortBy builtin

* Fix sortBy bench
 2024-02-15 19:53:35 +01:00
Anton Medvedev fdae534aa9 Add OpCallSafe 2024-02-12 22:15:17 +01:00
Anton MedvedevandGitHub 010c934215 Fix race cond in variabels (#523) 
* Add race cond test

* Move variables array to vm

* Resize vars array for different programs
 2024-01-13 20:41:14 +01:00
Anton MedvedevandGitHub 74e30b9ecd Add build tag: expr_debug (#521) 2024-01-13 13:14:38 +01:00
Anton MedvedevandGitHub 79bb049707 Add [generated] tags to files (#518) 2024-01-12 21:58:13 +01:00
Anton MedvedevandGitHub d903980830 Add mem grow to builtin (#505) 
* Add mem grow to builtin

* Add OpValidateArgs opcode
 2023-12-30 12:49:43 +01:00
Anton Medvedev 551d2a7e0f Use expr-lang/expr 2023-12-03 21:53:01 +01:00
Anton Medvedev 2cf93593f4 Hide fields in vm.Program 2023-11-27 13:52:56 +01:00
Anton Medvedev 4daca7fa08 Update vm.go 2023-09-06 09:42:58 +02:00
Anton Medvedev 3d460e5519 Fix negative ranges memory budget 2023-09-03 11:25:31 +02:00
Anton Medvedev 05d700f4ea Change memoryBudget type to uint 
Fixes #427
 2023-09-03 11:13:50 +02:00
Anton Medvedev 6d8d2390cf Remove countBy 2023-08-30 14:55:05 +02:00
Anton Medvedev 5023b3005d Add reduce() 2023-08-30 13:33:16 +02:00
Anton Medvedev 7f85c0551f Add countBy() 2023-08-30 12:07:16 +02:00
Anton Medvedev 32f5fde2eb Replace interface{} with any 2023-08-30 11:25:15 +02:00
Anton Medvedev 3f57b885d4 Add groupBy 2023-08-30 11:14:54 +02:00
Anton Medvedev 9a9cab2e4a Add sort builtin 2023-08-28 14:55:44 +02:00
Anton Medvedev 166d8b8ce9 Add filter()[-1] optimization 2023-08-24 11:15:43 +02:00
Anton Medvedev 8c52bd6d8b Add filter()[0] optimization 2023-08-24 11:15:43 +02:00
Anton Medvedev 2c139ca36a Add find() and findIndex() 2023-08-24 11:15:43 +02:00
Anton Medvedev ed5f9bfbcb Add variables 2023-08-22 22:30:07 +02:00
Anton Medvedev 4ae978d384 Allow to disable builtins 2023-08-19 22:24:42 +02:00
Anton Medvedev 9598368114 Improve OpCallTyped performance 2023-08-14 16:06:22 +02:00
Anton Medvedev 719f30d3ad Add builtin functions 2023-08-14 15:37:06 +02:00
Anton Medvedev 67bd8e364d Add string() builtin 2023-08-14 13:06:29 +02:00
Anton Medvedev 8177d8bd9f Add OpCallBuiltin opcode to avoid an extra allocation 2023-08-14 11:50:42 +02:00
Anton Medvedev 8d959ea2fe Refactor builtin.Function and move builtin funcs to builtin package 2023-08-14 11:50:42 +02:00
Anton Medvedev 756bf2f9b1 Add OpInvalid 2023-07-19 17:19:59 +04:00
Anton Medvedev fda73cd719 Fix OpLoadEnv disassemble 2023-07-19 17:09:45 +04:00
mdmcconnellandGitHub 4e57a43464 env[] keyword implemented in parser (#382) 2023-07-12 11:01:19 +02:00
hesiningandGitHub 9255e223d9 Add Wrap and Unwrap method to hold self error (#352) 2023-03-10 21:08:40 +01:00
Anton Medvedev 95f8b7ff17 Add nil coalescing operator 2023-02-03 15:53:43 +01:00
Anton Medvedev 3e919ad53f Unflatten builtins opcodes 2023-01-30 22:24:35 +01:00
Anton Medvedev 12a40c72cb Flatten builtin opcodes in vm 2023-01-30 22:24:35 +01:00
Anton Medvedev a469abd32b Add int() and float() builtins 2023-01-29 20:34:15 +01:00
Anton Medvedev b737180582 Improve builtin performance 2023-01-29 20:34:15 +01:00
Anton Medvedev 72a4ce18e9 Add len() builtin 2023-01-29 20:34:15 +01:00
Anton Medvedev 4b7c89eff1 Add expr.Function feature 2023-01-29 20:34:15 +01:00
Anton Medvedev 9777db3f2a Fix: correctly check error type of func return types 2023-01-21 13:34:33 +01:00
Anton Medvedev 247fc09c06 Rename opcodes 2022-11-12 14:40:05 +01:00
Anton Medvedev 6829eb018b Rename opcodes 2022-11-12 14:38:35 +01:00