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util.datamapper: Don't include empty unwrapped arrays

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Since there is no way to distinguish an empty such array from a
zero-length array. Dropping it seems like the least annoying thing to
do.
This commit is contained in:
Kim Alvefur 2021-03-24 00:48:02 +01:00
parent d68de27a5d
commit 4720eea24f
2 changed files with 8 additions and 2 deletions
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5
teal-src/util/datamapper.tl
View file

@ -168,7 +168,10 @@ function parse_object (schema : schema_t, s : st.stanza_t) : { string : any }
out[prop] = parse_object(propschema, c); out[prop] = parse_object(propschema, c);
end end
elseif proptype == "array" then elseif proptype == "array" then
out[prop] = parse_array(propschema, s); local a = parse_array(propschema, s);
if a and a[1] ~= nil then
out[prop] = a;
end
else else
error "unreachable" error "unreachable"
end end

5
util/datamapper.lua
View file

@ -138,7 +138,10 @@ function parse_object(schema, s)
out[prop] = parse_object(propschema, c); out[prop] = parse_object(propschema, c);
end end
elseif proptype == "array" then elseif proptype == "array" then
out[prop] = parse_array(propschema, s); local a = parse_array(propschema, s);
if a and a[1] ~= nil then
out[prop] = a;
end
else else
error("unreachable") error("unreachable")
end end