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v/vlib/json/json_primitives.v

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// Copyright (c) 2019-2021 Alexander Medvednikov. All rights reserved.
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// Use of this source code is governed by an MIT license
// that can be found in the LICENSE file.
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module json
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#flag -I @VROOT/thirdparty/cJSON
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#flag @VROOT/thirdparty/cJSON/cJSON.o
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#include "cJSON.h"
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#define js_get(object, key) cJSON_GetObjectItemCaseSensitive((object), (key))
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struct C.cJSON {
valueint int
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valuedouble f32
valuestring charptr
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}
fn C.cJSON_IsTrue(&C.cJSON) bool
fn C.cJSON_CreateNumber(int) &C.cJSON
fn C.cJSON_CreateBool(bool) &C.cJSON
fn C.cJSON_CreateString(charptr) &C.cJSON
fn C.cJSON_Parse(charptr) &C.cJSON
fn C.cJSON_PrintUnformatted(&C.cJSON) charptr
fn C.cJSON_Print(&C.cJSON) charptr
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pub fn decode(typ voidptr, s string) ?voidptr {
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// compiler implementation
return 0
}
pub fn encode(x voidptr) string {
// compiler implementation
return ''
}
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pub fn encode_pretty(x voidptr) string {
// compiler implementation
return ''
}
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fn decode_int(root &C.cJSON) int {
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if isnil(root) {
return 0
}
return root.valueint
}
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fn decode_i8(root &C.cJSON) i8 {
if isnil(root) {
return i8(0)
}
return i8(root.valueint)
}
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fn decode_i16(root &C.cJSON) i16 {
if isnil(root) {
return i16(0)
}
return i16(root.valueint)
}
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fn decode_i64(root &C.cJSON) i64 {
if isnil(root) {
return i64(0)
}
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return i64(root.valuedouble) // i64 is double in C
}
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fn decode_byte(root &C.cJSON) byte {
if isnil(root) {
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return byte(0)
}
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return byte(root.valueint)
}
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fn decode_u16(root &C.cJSON) u16 {
if isnil(root) {
return u16(0)
}
return u16(root.valueint)
}
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fn decode_u32(root &C.cJSON) u32 {
if isnil(root) {
return u32(0)
}
return u32(root.valueint)
}
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fn decode_u64(root &C.cJSON) u64 {
if isnil(root) {
return u64(0)
}
return u64(root.valueint)
}
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fn decode_f32(root &C.cJSON) f32 {
if isnil(root) {
return f32(0)
}
return root.valuedouble
}
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fn decode_f64(root &C.cJSON) f64 {
if isnil(root) {
return f64(0)
}
return f64(root.valuedouble)
}
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fn decode_string(root &C.cJSON) string {
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if isnil(root) {
return ''
}
if isnil(root.valuestring) {
return ''
}
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// println('decode string valuestring="$root.valuestring"')
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// return tos(root.valuestring, _strlen(root.valuestring))
return unsafe { tos_clone(byteptr(root.valuestring)) } // , _strlen(root.valuestring))
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}
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fn decode_bool(root &C.cJSON) bool {
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if isnil(root) {
return false
}
return C.cJSON_IsTrue(root)
}
// ///////////////////
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fn encode_int(val int) &C.cJSON {
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return C.cJSON_CreateNumber(val)
}
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fn encode_i8(val i8) &C.cJSON {
return C.cJSON_CreateNumber(val)
}
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fn encode_i16(val i16) &C.cJSON {
return C.cJSON_CreateNumber(val)
}
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fn encode_i64(val i64) &C.cJSON {
return C.cJSON_CreateNumber(val)
}
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fn encode_byte(val byte) &C.cJSON {
return C.cJSON_CreateNumber(val)
}
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fn encode_u16(val u16) &C.cJSON {
return C.cJSON_CreateNumber(val)
}
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fn encode_u32(val u32) &C.cJSON {
return C.cJSON_CreateNumber(val)
}
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fn encode_u64(val u64) &C.cJSON {
return C.cJSON_CreateNumber(val)
}
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fn encode_f32(val f32) &C.cJSON {
return C.cJSON_CreateNumber(val)
}
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fn encode_f64(val f64) &C.cJSON {
return C.cJSON_CreateNumber(val)
}
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fn encode_bool(val bool) &C.cJSON {
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return C.cJSON_CreateBool(val)
}
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fn encode_string(val string) &C.cJSON {
return C.cJSON_CreateString(&char(val.str))
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}
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// ///////////////////////
// user := decode_User(json_parse(js_string_var))
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fn json_parse(s string) &C.cJSON {
return C.cJSON_Parse(&char(s.str))
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}
// json_string := json_print(encode_User(user))
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fn json_print(json &C.cJSON) string {
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s := C.cJSON_PrintUnformatted(json)
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return unsafe { tos(byteptr(s), C.strlen(&char(s))) }
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}
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fn json_print_pretty(json &C.cJSON) string {
s := C.cJSON_Print(json)
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return unsafe { tos(byteptr(s), C.strlen(&char(s))) }
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}
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// / cjson wrappers
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// fn json_array_for_each(val, root &C.cJSON) {
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// #cJSON_ArrayForEach (val ,root)
// }