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| author | Boris Kolpackov <boris@codesynthesis.com> | 2024-02-20 09:37:50 +0200 |
|---|---|---|
| committer | Boris Kolpackov <boris@codesynthesis.com> | 2024-02-20 16:01:40 +0200 |
| commit | 6ff1cf35f78a24d52603d84eac9349b3d4670c6c (patch) | |
| tree | 3c549345e303b25617b70e96800f8d1fbb7a9595 /libbuild2/variable.hxx | |
| parent | c2d2a1ac0ac41a068c4bf09f8236a61d576e74f5 (diff) | |
Make json value type prepend non-overriding for consistency with map
Diffstat (limited to 'libbuild2/variable.hxx')
| -rw-r--r-- | libbuild2/variable.hxx | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/libbuild2/variable.hxx b/libbuild2/variable.hxx index b157806..d754edf 100644 --- a/libbuild2/variable.hxx +++ b/libbuild2/variable.hxx @@ -1237,6 +1237,12 @@ namespace build2 // of what looks like harmless looseness in a few contexts (such as the // $json.member_*() functions). // + // Note that similar to map, JSON object append/+= is overriding while + // prepend/=+ is not. In a sense, whatever appears last (from left to right) + // is kept, which is consistent with what we expect to happen when + // specifying the same name repeatedly (provided it's not considered + // invalid) in a representation (e.g., {"a":1,"a":2}). + // template <> struct LIBBUILD2_SYMEXPORT value_traits<json_value> { |