solution: refactor day12 with serde_json

Cargo.lock

@@ -30,12 +30,12 @@ dependencies = [
  "hashbrown 0.13.1",
  "hex-literal",
  "itertools",
- "json",
  "lazy_static",
  "pico-args",
  "regex",
  "reqwest",
  "rust-crypto",
+ "serde_json",
 ]
 
 [[package]]
@@ -395,12 +395,6 @@ dependencies = [
  "wasm-bindgen",
 ]
 
-[[package]]
-name = "json"
-version = "0.12.4"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "078e285eafdfb6c4b434e0d31e8cfcb5115b651496faca5749b88fafd4f23bfd"
-
 [[package]]
 name = "lazy_static"
 version = "1.4.0"
@@ -409,9 +403,9 @@ checksum = "e2abad23fbc42b3700f2f279844dc832adb2b2eb069b2df918f455c4e18cc646"
 
 [[package]]
 name = "libc"
-version = "0.2.137"
+version = "0.2.138"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "fc7fcc620a3bff7cdd7a365be3376c97191aeaccc2a603e600951e452615bf89"
+checksum = "db6d7e329c562c5dfab7a46a2afabc8b987ab9a4834c9d1ca04dc54c1546cef8"
 
 [[package]]
 name = "log"
@@ -800,9 +794,9 @@ dependencies = [
 
 [[package]]
 name = "syn"
-version = "1.0.104"
+version = "1.0.105"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4ae548ec36cf198c0ef7710d3c230987c2d6d7bd98ad6edc0274462724c585ce"
+checksum = "60b9b43d45702de4c839cb9b51d9f529c5dd26a4aff255b42b1ebc03e88ee908"
 dependencies = [
  "proc-macro2",
  "quote",

Cargo.toml

@@ -12,9 +12,9 @@ dotenv = "0.15.0"
 hashbrown = "0.13.1"
 hex-literal = "0.3.4"
 itertools = "0.10.5"
-json = "0.12.4"
 lazy_static = "1.4.0"
 pico-args = "0.5.0"
 regex = "1.7.0"
 reqwest = { version = "0.11.13", features = ["blocking"] }
 rust-crypto = "0.2.36"
+serde_json = "1.0.89"

src/bin/12.rs

@@ -1,12 +1,12 @@
-use json::{parse, JsonValue::*, JsonValue};
+use serde_json::{Value, Value::*, from_str};
 
-fn parse_add(json_object: &JsonValue, skip_red: bool) -> i32 {
+fn parse_add(json_object: &Value, skip_red: bool) -> i32 {
     match json_object {
         Number(x) => x.to_string().parse::<i32>().unwrap_or(0),
         Object(x) => {
             if skip_red {
                 for (_, node) in x.iter() {
-                    if let Short { .. } = node {
+                    if let String { .. } = node {
                         if node.as_str() == Some("red") {
                             return 0;
                         }
@@ -21,10 +21,10 @@ fn parse_add(json_object: &JsonValue, skip_red: bool) -> i32 {
 }
 
 pub fn part_one(input: &str) -> Option<u32> {
-    Some(parse_add(&parse(input).unwrap(), false) as u32)
+    Some(parse_add(&from_str(input).unwrap(), false) as u32)
 }
 pub fn part_two(input: &str) -> Option<u32> {
-    Some(parse_add(&parse(input).unwrap(), true) as u32)
+    Some(parse_add(&from_str(input).unwrap(), true) as u32)
 }
 fn main() {
     let input = &aoc::read_file("inputs", 12);