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v/vlib/x/json2/encoder.v

99 lines
1.6 KiB
V

// Copyright (c) 2019-2021 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_string('"$str"')
} else {
wr.write_string(str)
}
if i >= len - 1 {
return
}
wr.write_b(`,`)
}
// str returns the string representation of the `map[string]Any`.
pub fn (flds map[string]Any) str() string {
mut wr := strings.new_builder(200)
wr.write_b(`{`)
mut i := 0
for k, v in flds {
wr.write_string('"$k":')
write_value(v, i, flds.len, mut wr)
i++
}
wr.write_b(`}`)
defer {
unsafe { wr.free() }
}
res := wr.str()
return res
}
// str returns the 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 {
unsafe { wr.free() }
}
res := wr.str()
return res
}
// str returns the string representation of the `Any` type.
pub fn (f Any) str() string {
match f {
string {
return f
}
int {
return f.str()
}
i64 {
return f.str()
}
f32 {
str_f32 := f.str()
return if str_f32.ends_with('.') {
str_f32 + '0'
} else {
str_f32
}
}
f64 {
str_f64 := f.str()
return if str_f64.ends_with('.') {
str_f64 + '0'
} else {
str_f64
}
}
bool {
return f.str()
}
map[string]Any {
return f.str()
}
Null {
return 'null'
}
else {
if f is []Any {
return f.str()
}
return ''
}
}
}