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json: fix json decode with sumtype of multi array type (#14035)

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yuyi 2022-04-14 20:36:24 +08:00 committed by GitHub
parent c4dff0d797
commit 2d6d6c9ac9
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2 changed files with 23 additions and 8 deletions
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16
vlib/json/json_decode_with_sumtype_test.v
View File

@ -1,13 +1,21 @@
import json
type Test = []string | string
type Test = []bool | []int | []string | string
struct Some {
t Test
}
fn test_json_decode_with_sumtype() ? {
v := json.decode(Some, '{"t": ["string", "string2"]}') ?
println(v)
assert '$v.t' == "Test(['string', 'string2'])"
v1 := json.decode(Some, '{"t": ["string", "string2"]}') ?
println(v1)
assert v1.t == Test(['string', 'string2'])
v2 := json.decode(Some, '{"t": [11, 22]}') ?
println(v2)
assert v2.t == Test([11, 22])
v3 := json.decode(Some, '{"t": [true, false]}') ?
println(v3)
assert v3.t == Test([true, false])
}

15
vlib/v/gen/c/json.v
View File

@ -311,14 +311,21 @@ fn (mut g Gen) gen_sumtype_enc_dec(sym ast.TypeSymbol, mut enc strings.Builder,
dec.writeln('\t\t}')
}
if var_t == 'Array_string' {
if var_t.starts_with('Array_') {
tmp := g.new_tmp_var()
dec.writeln('\t\tif (cJSON_IsArray(root)) {')
dec.writeln('\t\t\tOption_Array_string $tmp = ${js_dec_name(var_t)}(root);')
judge_elem_typ := if var_t.ends_with('string') {
'cJSON_IsString(root->child)'
} else if var_t.ends_with('bool') {
'cJSON_IsBool(root->child)'
} else {
'cJSON_IsNumber(root->child)'
}
dec.writeln('\t\tif (cJSON_IsArray(root) && $judge_elem_typ) {')
dec.writeln('\t\t\tOption_$var_t $tmp = ${js_dec_name(var_t)}(root);')
dec.writeln('\t\t\tif (${tmp}.state != 0) {')
dec.writeln('\t\t\t\treturn (Option_$sym.cname){ .state = ${tmp}.state, .err = ${tmp}.err, .data = {0} };')
dec.writeln('\t\t\t}')
dec.writeln('\t\t\tres = Array_string_to_sumtype_${sym.cname}(($var_t*)${tmp}.data);')
dec.writeln('\t\t\tres = ${var_t}_to_sumtype_${sym.cname}(($var_t*)${tmp}.data);')
dec.writeln('\t\t}')
}