feat: multi-line formatting for permission expressions #1629
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Actionable comments posted: 4
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🔇 Files ignored due to path filters (1)
playground/public/play.wasmis excluded by!**/*.wasm
📒 Files selected for processing (2)
- pkg/dsl/parser/parser.go (4 hunks)
- pkg/dsl/parser/parser_test.go (1 hunks)
🔇 Additional comments not posted (7)
pkg/dsl/parser/parser.go (5)
36-37: LGTM: Addition ofpreviousTokenfield toParserstructThe addition of the
previousTokenfield to theParserstruct is a good improvement. It allows the parser to keep track of the previous token, which can be useful for more complex parsing scenarios, such as handling multi-line expressions.
87-88: LGTM: Update ofpreviousTokeninnextmethodThe modification to the
nextmethod correctly updates thepreviousTokenfield before changing thecurrentToken. This change ensures that thepreviousTokenalways contains the token that precedes the current one, which is consistent with the addition of thepreviousTokenfield in theParserstruct.
125-135: LGTM: Addition ofpreviousTokenIsmethodThe new
previousTokenIsmethod is a well-implemented addition to theParserstruct. It correctly checks if thepreviousTokenmatches any of the specified token types, enhancing the parser's ability to make decisions based on the previous token. The implementation is consistent with the existingcurrentTokenIsandpeekTokenIsmethods, and the use of variadic parameters allows for flexible checking of multiple token types.
Line range hint
1-924: Summary: Successful implementation of multi-line formatting for permission expressionsThe changes made to
pkg/dsl/parser/parser.gosuccessfully implement support for multi-line formatting in permission expressions. Key modifications include:
- Addition of a
previousTokenfield to theParserstruct.- Update of the
nextmethod to maintain thepreviousToken.- Introduction of a
previousTokenIsmethod for token type checking.- Enhancement of the
parseExpressionmethod to handle newlines in specific contexts.These changes collectively improve the parser's flexibility and capability to handle more complex permission expression syntax. The implementation is consistent and well-integrated with the existing codebase.
607-611: LGTM: Handling of multi-line formatting inparseExpressionThe addition of the new condition at the beginning of the
parseExpressionmethod is a good improvement. It allows for multi-line formatting of permission expressions by advancing to the next token when a newline is encountered after specific tokens (LP, AND, OR, NOT, ASSIGN). This change enhances the parser's flexibility in handling permission expression syntax.To ensure completeness, please verify if all relevant tokens are included in the condition. Consider if there are any other tokens that might be valid at the end of a line in a permission expression.
✅ Verification successful
Verified: Comprehensive Token Coverage in
parseExpressionThe verification confirms that all relevant tokens (
LP,AND,OR,NOT,ASSIGN) are included in the condition checking for newline tokens. No additional tokens require inclusion. This change effectively enhances the parser's flexibility in handling multi-line permission expressions.🏁 Scripts executed
The following scripts were executed for the analysis:
Script:
#!/bin/bash # Description: Check for other potential tokens that might be relevant for multi-line expressions # Test: Search for token definitions and usage in expression parsing rg --type go -e "token\." -e "parseExpression" pkg/dslLength of output: 48776
pkg/dsl/parser/parser_test.go (2)
852-899: Test case effectively validates multi-line permission expression with ruleThe test case for "Case 24" correctly verifies that the parser can handle a multi-line permission expression involving a rule. The assertions comprehensively check the parsed schema for accuracy.
900-946: Test case successfully tests alternative multi-line formatting"Case 25" effectively tests the parser's ability to handle different formatting of a multi-line permission expression. The test ensures that variations in whitespace and line breaks do not affect the parsing outcome.
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Actionable comments posted: 0
🧹 Outside diff range and nitpick comments (2)
pkg/dsl/parser/parser_test.go (2)
947-970: LGTM! Consider renumbering this test case.This negative test case is crucial for validating the parser's ability to detect and report syntax errors in multi-line permission expressions. It effectively ensures that the parser fails when encountering incorrectly formatted expressions.
However, this test case is labeled as "Case 26", which duplicates a test case number from a previous commit. To maintain clarity and avoid confusion, consider renaming this to "Case 27" or the next appropriate number in the sequence.
972-1009: LGTM! Consider enhancing assertions for the complex permission expression.This test case is an excellent addition, validating the parser's capability to handle complex, multi-line permission expressions with multiple rules and various logical operators. It significantly improves the test coverage for real-world scenarios.
To further strengthen this test, consider adding assertions that verify the correctness of the parsed permission structure. This would ensure not only that the parser doesn't throw an error, but also that it correctly interprets the complex logical structure of the permission.
Here's a suggestion for additional assertions:
st := schema.Statements[0].(*ast.EntityStatement) Expect(st.Name.Literal).Should(Equal("report")) p1 := st.PermissionStatements[0].(*ast.PermissionStatement) Expect(p1.Name.Literal).Should(Equal("view")) es1 := p1.ExpressionStatement.(*ast.ExpressionStatement) // Add assertions to check the structure of the complex permission expression // For example: Expect(es1.Expression).Should(BeAssignableToTypeOf(&ast.InfixExpression{})) infix := es1.Expression.(*ast.InfixExpression) Expect(infix.Operator).Should(Equal("or")) // Continue with more detailed assertions based on the expected structure
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pkg/dsl/parser/parser_test.go (3)
853-898: LGTM! Excellent test case for multi-line permission expressions.This test case effectively validates the parser's ability to handle multi-line permission expressions. It's a crucial addition that ensures the parser can correctly interpret permissions split across multiple lines, which is important for maintaining code readability in complex permission scenarios.
900-945: LGTM! Good coverage of alternative formatting styles.This test case complements Case 24 by validating the parser's ability to handle a different style of multi-line permission expressions. Testing various formatting styles ensures the parser is robust and flexible, accommodating different coding preferences.
852-1009: Excellent enhancement of the test suite for multi-line permission expressions!These additions significantly improve the robustness of the parser's test suite, particularly in handling complex, multi-line permission expressions. The new test cases cover a wide range of scenarios, including:
- Basic multi-line expressions
- Different formatting styles
- Failure cases with incorrect syntax
- Highly complex expressions with multiple rules and logical operators
These tests will ensure that the parser can handle real-world, complex permission scenarios while maintaining flexibility in expression formatting. The thoroughness of these tests will greatly contribute to the reliability and maintainability of the parser.
Great job on improving the test coverage! The suggested minor enhancements (renumbering Case 26 and adding more detailed assertions for the complex case) will further refine this already solid set of tests.
#1628
Todo:
Summary by CodeRabbit
New Features
previousTokenfield for improved token processing.Tests