Details
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Type:
Defect
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Status:
Open
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Priority:
Minor
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Resolution: Unresolved
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Affects Version/s: Release 1.4, Release 1.5
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Fix Version/s: None
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Component/s: None
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Labels:
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Environment:clojure 1.5 beta2, Mac OS X 10.8.2, java version "1.6.0_37"
Description
If a data-reader returns nil, the reader throws java.lang.RuntimeException: No dispatch macro... The error message implies that there is no dispatch macro for whatever the first character of the tag happens to be.
Here's a simple example:
(binding [*data-readers* {'f/ignore (constantly nil)}] (read-string "#f/ignore 42 10"))
RuntimeException No dispatch macro for: f clojure.lang.Util.runtimeException (Util.java:219)
Activity
Steve Miner
made changes -
| Field | Original Value | New Value |
|---|---|---|
| Attachment | clj-1138-allow-data-reader-to-return-nil-instead-of-throwing.patch [ 11773 ] |
Steve Miner
made changes -
| Labels | reader | patch reader |
Steve Miner
made changes -
| Patch | Code and Test [ 10002 ] |
Steve Miner
made changes -
| Attachment | clj-1138-data-reader-return-nil-for-no-op.patch [ 11774 ] |
Steve Miner
made changes -
| Attachment | clj-1138-allow-data-reader-to-return-nil-instead-of-throwing.patch [ 11773 ] |
Steve Miner
made changes -
| Attachment | clj-1138-data-reader-return-nil-for-no-op.patch [ 11774 ] |
Steve Miner
made changes -
| Patch | Code and Test [ 10002 ] |
Steve Miner
made changes -
| Labels | patch reader | reader |