[AVRO-1937] C++ generator for recursive structure crashes

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 1.8.1
• Component/s: c++
• Assignee: Unassigned
• Reporter: Jared Grubb
• Created: 21/Oct/16 21:36
• Updated: 28/Dec/18 16:25
• Resolved: 18/Feb/17 02:41

Description

I was testing out a Avro specification for a tree type and the generator crashed. I saw that there was a prior bug (AVRO-1667) that fixed some things in the Java parser.

The same test-case on that bug will cause avrogencpp to segfault.

$ cat tree.avro
{
"type":"record",
"name":"SampleNode",
"namespace":"org.spf4j.ssdump2.avro",
"fields":[

{"name":"count","type":"int","default":0}

,
{"name":"subNodes","type":
{"type":"array","items":{
"type":"record","name":"SamplePair",
"fields":[
{"name":"method","type":
{"type":"record","name":"Method",
"fields":[
{"name":"declaringClass","type":{"type":"string","avro.java.string":"String"}},
{"name":"methodName","type":{"type":"string","avro.java.string":"String"}}
]}},

{"name":"node","type":"SampleNode"}

]
}}
}
]
}

$ avrogencpp -i tree.avro -o avro.cpp
[ segfault ]