123 lines
2.3 KiB
V
123 lines
2.3 KiB
V
// Copyright (c) 2019-2021 Alexander Medvednikov. All rights reserved.
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// Use of this source code is governed by an MIT license
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// that can be found in the LICENSE file.
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module json2
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pub const (
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null = Null{}
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)
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pub interface Serializable {
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from_json(f Any)
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to_json() string
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}
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// Decodes a JSON string into an `Any` type. Returns an option.
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pub fn raw_decode(src string) ?Any {
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mut p := new_parser(src, true)
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return p.decode()
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}
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// Same with `raw_decode`, but skips the type conversion for certain types when decoding a certain value.
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pub fn fast_raw_decode(src string) ?Any {
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mut p := new_parser(src, false)
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return p.decode()
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}
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// decode is a generic function that decodes a JSON string into the target type.
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pub fn decode<T>(src string) ?T {
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res := raw_decode(src) ?
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mut typ := T{}
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typ.from_json(res)
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return typ
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}
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// encode is a generic function that encodes a type into a JSON string.
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pub fn encode<T>(typ T) string {
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return typ.to_json()
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}
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// as_map uses `Any` as a map.
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pub fn (f Any) as_map() map[string]Any {
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if f is map[string]Any {
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return f
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} else if f is []Any {
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mut mp := map[string]Any{}
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for i, fi in f {
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mp['$i'] = fi
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}
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return mp
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}
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return map{
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'0': f
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}
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}
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// int uses `Any` as an integer.
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pub fn (f Any) int() int {
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match f {
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int { return f }
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i64, f32, f64, bool { return int(f) }
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else { return 0 }
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}
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}
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// i64 uses `Any` as a 64-bit integer.
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pub fn (f Any) i64() i64 {
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match f {
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i64 { return f }
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int, f32, f64, bool { return i64(f) }
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else { return 0 }
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}
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}
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// u64 uses `Any` as a 64-bit unsigned integer.
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pub fn (f Any) u64() u64 {
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match f {
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u64 { return f }
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int, i64, f32, f64, bool { return u64(f) }
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else { return 0 }
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}
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}
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// f32 uses `Any` as a 32-bit float.
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pub fn (f Any) f32() f32 {
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match f {
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f32 { return f }
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int, i64, f64 { return f32(f) }
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else { return 0.0 }
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}
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}
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// f64 uses `Any` as a float.
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pub fn (f Any) f64() f64 {
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match f {
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f64 { return f }
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int, i64, f32 { return f64(f) }
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else { return 0.0 }
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}
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}
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// arr uses `Any` as an array.
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pub fn (f Any) arr() []Any {
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if f is []Any {
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return f
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} else if f is map[string]Any {
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mut arr := []Any{}
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for _, v in f {
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arr << v
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}
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return arr
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}
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return [f]
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}
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// bool uses `Any` as a bool
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pub fn (f Any) bool() bool {
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match f {
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bool { return f }
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string { return f.bool() }
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else { return false }
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}
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}
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