Restore arity-checking with an opt-out flag#7860
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headius merged 3 commits intojruby:masterfrom Jul 17, 2023
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Removing automatic arity-checking for Java-based Ruby methods broke some users' test suites that expected ArgumentError to be thrown; without a manual arity-check, the target methods now tried to access the incoming vararg array blindly and raised Java index errors. This was reported as jruby#7851. This fixes the issue by restoring arity-checking by default and providing an opt-out flag that we and users can use to indicate that the Java code will check arity manually.
These were all moved to manual arity-checking in jruby#7751, but that led to breakage when third-party extensions had varargs paths that did not check arity manually (see jruby#7851). Instead we restore the default to auto arity-check with this flag provided for opting out (jruby#7680).
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Thanks, @headius |
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Added a test for basic |
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@JasonLunn If you could verify this fixes your case, we'd appreciate it! |
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Removing automatic arity-checking for Java-based Ruby methods broke some users' test suites that expected ArgumentError to be thrown; without a manual arity-check, the target methods now tried to access the incoming vararg array blindly and raised Java index errors. This was reported as #7851.
This fixes the issue by restoring arity-checking by default and providing an opt-out flag that we and users can use to indicate that the Java code will check arity manually.