pitrou commented on code in PR #5080:
URL: https://github.com/apache/arrow-rs/pull/5080#discussion_r1394975959
##########
arrow-integration-testing/src/lib.rs:
##########
@@ -100,3 +166,146 @@ pub fn read_gzip_json(version: &str, path: &str) ->
ArrowJson {
let arrow_json: ArrowJson = serde_json::from_str(&s).unwrap();
arrow_json
}
+
+//
+// C Data Integration entrypoints
+//
+
+fn cdata_integration_export_schema_from_json(
+ c_json_name: *const i8,
+ out: *mut FFI_ArrowSchema,
+) -> Result<()> {
+ let json_name = unsafe { CStr::from_ptr(c_json_name) };
+ let f = read_json_file_metadata(json_name.to_str()?)?;
+ let c_schema = FFI_ArrowSchema::try_from(&f.schema)?;
+ // Move exported schema into output struct
+ unsafe { ptr::replace(out, c_schema) };
Review Comment:
Should probably use `ptr::write` instead (`out` is not supposed to be
initialized).
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