Details
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Type:
Enhancement
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Status:
In Progress
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Priority:
Major
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Resolution: Unresolved
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Affects Version/s: None
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Fix Version/s: Reviewed Backlog
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Component/s: None
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Labels:None
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Approval:Incomplete
Description
Problem:
When making java calls (or inlined functions), if both args and param are primitive, no widening conversion is used to locate the proper overloaded method/constructor.
Examples:
user=> (Integer. (byte 0)) java.lang.IllegalArgumentException: No matching ctor found for class java.lang.Integer (NO_SOURCE_FILE:0) </code></pre> The above occurs because there is no Integer(byte) constructor, though it should match on Integer(int). <pre><code>user=> (bit-shift-left (byte 1) 1) Reflection warning, NO_SOURCE_PATH:3 - call to shiftLeft can't be resolved. 2
In the above, a call is made via reflection to Numbers.shiftLeft(Object, Object) and its associated auto-boxing, instead of directly to the perfectly adequate Numbers.shiftLeft(long, int).
Workarounds:
Explicitly casting to the formal type.
Ancillary benefits of fixing:
It would also reduce the amount of method overloading, e.g., RT.intCast(char), intCast(byte), intCast(short), could all be removed, since such calls would pass to RT.intCast(int).
Converted from http://www.assembla.com/spaces/clojure/tickets/445
Attachments:
fixbug445.diff - https://www.assembla.com/spaces/clojure/documents/b6gDSUZOur36b9eJe5cbCb/download/b6gDSUZOur36b9eJe5cbCb