v/vlib/x/json2/encoder.v

73 lines
1.4 KiB
V

// Copyright (c) 2019-2020 Alexander Medvednikov. All rights reserved.
// Use of this source code is governed by an MIT license
// that can be found in the LICENSE file.
module json2
import strings
fn write_value(v Any, i int, len int, mut wr strings.Builder) {
str := v.str()
if v is string {
wr.write('"$str"')
} else {
wr.write(str)
}
if i >= len-1 { return }
wr.write_b(`,`)
}
// String representation of the `map[string]Any`.
pub fn (flds map[string]Any) str() string {
mut wr := strings.new_builder(200)
wr.write_b(`{`)
mut i := 0
for k, v in flds {
wr.write('"$k":')
write_value(v, i, flds.len, mut wr)
i++
}
wr.write_b(`}`)
defer {
wr.free()
}
res := wr.str()
return res
}
// String representation of the `[]Any`.
pub fn (flds []Any) str() string {
mut wr := strings.new_builder(200)
wr.write_b(`[`)
for i, v in flds {
write_value(v, i, flds.len, mut wr)
}
wr.write_b(`]`)
defer {
wr.free()
}
res := wr.str()
return res
}
// String representation of the `Any` type.
pub fn (f Any) str() string {
match union f {
string { return f }
int { return f.str() }
i64 { return f.str() }
f32 { return f.str() }
f64 { return f.str() }
any_int { return f.str() }
any_float { return f.str() }
bool { return f.str() }
map[string]Any { return f.str() }
Null { return 'null' }
else {
if f is []Any {
return f.str()
}
return ''
}
}
}