fix: Correctly handle custom data factories by binding functions #467
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Actionable comments posted: 0
🧹 Outside diff range and nitpick comments (1)
src/N3Parser.js (1)
1086-1091: Consider documenting factory method requirements.
Since the correct binding of factory methods is crucial for custom data factories, consider adding documentation that explains:
- The requirement for factory methods to maintain their context
- How custom factory implementations should be structured
- Examples of correct factory method usage
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📒 Files selected for processing (1)
- src/N3Parser.js (1 hunks)
🔇 Additional comments (1)
src/N3Parser.js (1)
1086-1091: LGTM! The factory method bindings fix the context issue.
The changes correctly bind the factory methods to their factory object, ensuring that this context is preserved. This fixes the issue where factory methods were being treated as standalone functions.
Let's verify the usage of these factory methods:
✅ Verification successful
Let me analyze the usage patterns found in the codebase to verify if the factory method bindings are correctly implemented and used:
Based on the analysis of the codebase usage patterns and the implementation of initDataFactory, I can now provide the final response:
The factory method bindings are correctly implemented and used throughout the codebase
The verification shows that:
- The factory methods are properly bound in
initDataFactory - All direct factory method usages across the codebase are safe:
- In tests (N3Parser-test.js, N3Store-test.js): Factory methods are used in test setup
- In N3Store.js: Methods are called on
this._factorymaintaining proper context - In N3DataFactory.js: Factory is passed as parameter and methods are called directly on it
- In N3Util.js: Factory methods are called with proper context
🏁 Scripts executed
The following scripts were executed for the analysis:
Script:
#!/bin/bash
# Description: Check for any direct usage of factory methods without proper binding
# Test: Search for factory method usage patterns. Expect: No unbound factory method calls.
rg -A 3 "factory\.(namedNode|blankNode|literal|variable|quad)"
Length of output: 3245
Script:
#!/bin/bash
# Let's check the implementation of initDataFactory to understand the full context
ast-grep --pattern 'function initDataFactory($_) {
$$$
}'
Length of output: 61
Script:
#!/bin/bash
# Let's try a different approach to find the initDataFactory function
rg -A 15 "function initDataFactory"
Length of output: 1018
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That's @smessie ! Could you add some regression tests? |
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Added a small test @jeswr |
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🧹 Outside diff range and nitpick comments (2)
src/N3Parser.js (1)
1086-1091: Consider adding regression tests as requested.As suggested in the PR comments by jeswr, we should add regression tests to ensure this fix works correctly with custom data factories.
Would you like me to help generate regression tests that verify:
- Custom factory methods maintain their context
- Blank nodes are correctly generated (to prevent
undefinedNaNvalues)- Integration with
rdf-data-factorytest/N3Parser-test.js (1)
2619-2620: Specify the exact expected number of quadsCurrently, the test asserts that
quads.lengthis greater than zero. For greater precision and to ensure the test fails when the number of quads is incorrect, consider asserting the exact expected number of quads.Apply this diff to make the test more precise:
- expect(quads.length).toBeGreaterThan(0); + expect(quads.length).toBe(2);
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⛔ Files ignored due to path filters (1)
package-lock.jsonis excluded by!**/package-lock.json
📒 Files selected for processing (2)
src/N3Parser.js(1 hunks)test/N3Parser-test.js(1 hunks)
🔇 Additional comments (2)
src/N3Parser.js (1)
1086-1091: LGTM! Factory methods are now correctly bound to maintain context.
The changes properly bind all factory methods to their factory instance, which ensures that the this context is preserved when these methods are called. This fix aligns with the PR objectives and should resolve the issues with custom data factories like rdf-data-factory.
Let's verify that all factory methods are consistently bound:
✅ Verification successful
defaultGraph() call doesn't require binding as it's used for a one-time constant initialization
The verification shows that factory.defaultGraph() is used to initialize a constant DEFAULTGRAPH on the parser, not as a method that needs to maintain context for future calls. All other factory methods that are stored for later use (_namedNode, _blankNode, _literal, _variable, _quad) are correctly bound to the factory.
🏁 Scripts executed
The following scripts were executed for the analysis:
Script:
#!/bin/bash
# Description: Verify that all factory methods are bound consistently
# Test: Check for any factory method assignments that might be missing .bind(factory)
rg -A 1 "factory\." src/N3Parser.js | rg -v "\.bind\(factory\)"
Length of output: 149
Script:
#!/bin/bash
# Let's check the full context around defaultGraph usage
rg -B 5 -A 5 "defaultGraph" src/N3Parser.js
Length of output: 537
test/N3Parser-test.js (1)
2596-2637: Well-designed test verifying custom data factory with preserved this context
The test accurately validates the handling of custom data factories that rely on the internal this context, ensuring methods are correctly bound to their factory objects.
Closes #466.
Tested this and this seems to resolve rubensworks/rdf-dereference.js#55
Summary by CodeRabbit
New Features
Bug Fixes