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v/vlib/json/json_primitives.v

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// Copyright (c) 2019 Alexander Medvednikov. All rights reserved.
// 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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struct C.cJSON {
valueint int
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valuedouble f32
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valuestring byteptr
}
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fn jsdecode_int(root &C.cJSON) int {
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if isnil(root) {
return 0
}
return root.valueint
}
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fn jsdecode_i8(root &C.cJSON) i8 {
if isnil(root) {
return i8(0)
}
return i8(root.valueint)
}
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fn jsdecode_i16(root &C.cJSON) i16 {
if isnil(root) {
return i16(0)
}
return i16(root.valueint)
}
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fn jsdecode_i64(root &C.cJSON) i64 {
if isnil(root) {
return i64(0)
}
return i64(root.valuedouble) //i64 is double in C
}
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fn jsdecode_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 jsdecode_u16(root &C.cJSON) u16 {
if isnil(root) {
return u16(0)
}
return u16(root.valueint)
}
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fn jsdecode_u32(root &C.cJSON) u32 {
if isnil(root) {
return u32(0)
}
return u32(root.valueint)
}
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fn jsdecode_u64(root &C.cJSON) u64 {
if isnil(root) {
return u64(0)
}
return u64(root.valueint)
}
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fn jsdecode_f32(root &C.cJSON) f32 {
if isnil(root) {
return f32(0)
}
return root.valuedouble
}
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fn jsdecode_f64(root &C.cJSON) f64 {
if isnil(root) {
return f64(0)
}
return f64(root.valuedouble)
}
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fn jsdecode_string(root &C.cJSON) string {
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if isnil(root) {
return ''
}
if isnil(root.valuestring) {
return ''
}
// println('jsdecode string valuestring="$root.valuestring"')
// return tos(root.valuestring, _strlen(root.valuestring))
return tos_clone(root.valuestring)// , _strlen(root.valuestring))
}
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fn C.cJSON_IsTrue() bool
fn C.cJSON_CreateNumber() &C.cJSON
fn C.cJSON_CreateBool() &C.cJSON
fn C.cJSON_CreateString() &C.cJSON
fn C.cJSON_Parse() &C.cJSON
fn C.cJSON_PrintUnformatted() byteptr
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fn jsdecode_bool(root &C.cJSON) bool {
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if isnil(root) {
return false
}
return C.cJSON_IsTrue(root)
}
// ///////////////////
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fn jsencode_int(val int) &C.cJSON {
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return C.cJSON_CreateNumber(val)
}
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fn jsencode_i8(val i8) &C.cJSON {
return C.cJSON_CreateNumber(val)
}
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fn jsencode_i16(val i16) &C.cJSON {
return C.cJSON_CreateNumber(val)
}
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fn jsencode_i64(val i64) &C.cJSON {
return C.cJSON_CreateNumber(val)
}
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fn jsencode_byte(val byte) &C.cJSON {
return C.cJSON_CreateNumber(val)
}
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fn jsencode_u16(val u16) &C.cJSON {
return C.cJSON_CreateNumber(val)
}
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fn jsencode_u32(val u32) &C.cJSON {
return C.cJSON_CreateNumber(val)
}
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fn jsencode_u64(val u64) &C.cJSON {
return C.cJSON_CreateNumber(val)
}
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fn jsencode_f32(val f32) &C.cJSON {
return C.cJSON_CreateNumber(val)
}
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fn jsencode_f64(val f64) &C.cJSON {
return C.cJSON_CreateNumber(val)
}
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fn jsencode_bool(val bool) &C.cJSON {
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return C.cJSON_CreateBool(val)
}
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fn jsencode_string(val string) &C.cJSON {
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clone := val.clone()
return C.cJSON_CreateString(clone.str)
// return C.cJSON_CreateString2(val.str, val.len)
}
// ///////////////////////
// user := decode_User(json_parse(js_string_var))
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fn json_parse(s string) &C.cJSON {
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return C.cJSON_Parse(s.str)
}
// 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)
return tos(s, C.strlen(s))
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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)
// }