Implement valuable-json

.github/workflows/ci.yml

@@ -30,8 +30,8 @@ jobs:
         # thumbv6m-none-eabi supports atomic, but not atomic CAS.
         # riscv32i-unknown-none-elf does not support atomic at all.
         target:
-          - thumbv6m-none-eabi
           - thumbv7m-none-eabi
+          - thumbv6m-none-eabi
           - riscv32i-unknown-none-elf
     runs-on: ubuntu-latest
     steps:
@@ -45,6 +45,9 @@ jobs:
         working-directory: valuable
       - run: cargo hack build --target ${{ matrix.target }} --feature-powerset --skip std,default
         working-directory: valuable-serde
+      # TODO: support no-std in valuable-json
+      # - run: cargo hack build --target ${{ matrix.target }} --feature-powerset --skip std,default
+      #   working-directory: valuable-json
 
   features:
     runs-on: ubuntu-latest

Cargo.toml

@@ -3,6 +3,7 @@ resolver = "2"
 members = [
     "valuable",
     "valuable-derive",
+    "valuable-json",
     "valuable-serde",
     "tests",
 ]

valuable-json/Cargo.toml

@@ -0,0 +1,20 @@
+[package]
+name = "valuable-json"
+version = "0.1.0"
+authors = ["Taiki Endo <te316e89@gmail.com>"]
+edition = "2018"
+license = "MIT"
+description = "JSON support for Valuable."
+
+[features]
+default = ["std"]
+
+# NOTE: Disabling `std` feature is not supported yet.
+std = ["valuable/std"]
+
+[dependencies]
+valuable = { version = "0.1", path = "../valuable", default-features = false }
+ryu = "1"
+
+[dev-dependencies]
+valuable = { version = "0.1", path = "../valuable", features = ["derive"] }