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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> { |