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warden-protocol / wardenprotocol

Monorepo for the Warden Protocol.
https://wardenprotocol.org
Apache License 2.0
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feat(shield): add comparison operators (`< <= > >= == !=`) #292

Closed Pitasi closed 4 months ago

Pitasi commented 4 months ago

Add new token types, extend lexer, parser and evaluator to support the new operators. Add a few unit tests to cover the basics of the new operators.

Summary by CodeRabbit

coderabbitai[bot] commented 4 months ago
Walkthrough ## Walkthrough The recent changes to the `shield` module introduce new comparison operators (`<`, `>`, `<=`, `>=`, `==`, `!=`) for integer comparisons. These updates span across the lexer, parser, and evaluator components, ensuring the proper handling of these operators in the language's syntax and evaluation processes. Additionally, the `Type` enum in `token.proto` has been modified to accommodate these new operators. ## Changes | File(s) | Change Summary | |---------------------------------------------|----------------------------------------------------------------------------------------------------| | `CHANGELOG.md` | Documented the addition of new comparison operators for integers in the `shield` module. | | `proto/shield/token/token.proto` | Updated `Type` enum to include new comparison operator values and repositioned `TRUE` and `FALSE`. | | `shield/internal/evaluator/evaluator.go` | Enhanced `evalInfixExpression` to handle new comparison and boolean operators. | | `shield/internal/evaluator/evaluator_test.go`| Added test cases for new comparison and boolean operators. | | `shield/internal/lexer/lexer.go` | Updated `NextToken` method to correctly handle compound comparison operators. | | `shield/internal/lexer/lexer_test.go` | Expanded tests to include new token types and comparison operators. | | `shield/internal/parser/parser.go` | Added new token types and updated precedence mappings for infix expressions. | | `shield/internal/parser/parser_test.go` | Added test cases for logical expressions and comparisons with new operators. | ## Possibly related issues - **warden-protocol/wardenprotocol#260**: This PR addresses the addition of basic comparison operators (`>`, `<`, `>=`, `<=`, `==`, `!=`) as requested in the issue, making it directly relevant.

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