Test no-std compatibility

Author: casey

.github/workflows/ci.yaml

@@ -43,7 +43,8 @@ jobs:
 
     - run: |
         rustup target add thumbv6m-none-eabi
-        cargo build --no-default-features --target thumbv6m-none-eabi
+        cargo build --target thumbv6m-none-eabi --package boilerplate
+        cargo build --target thumbv6m-none-eabi --package boilerplate-tests
 
   lint:
     runs-on: ubuntu-latest

Cargo.lock

@@ -28,7 +28,7 @@ pub fn boilerplate(input: proc_macro::TokenStream) -> proc_macro::TokenStream {
       use ::core::fmt::Write;
 
       let boilerplate_text = &[ #(#text),* ];
-      let mut boilerplate_output = ::std::string::String::new();
+      let mut boilerplate_output = ::alloc::string::String::new();
 
       #body
 

crates/boilerplate-macros/src/lib.rs

@@ -0,0 +1,15 @@
+[package]
+name = "boilerplate-tests"
+version = "0.0.0"
+authors.workspace = true
+categories.workspace = true
+edition.workspace = true
+homepage.workspace = true
+license.workspace = true
+repository.workspace = true
+
+[dependencies]
+boilerplate = { path = "../../" }
+
+[lints]
+workspace = true

crates/boilerplate-tests/Cargo.toml

@@ -0,0 +1,15 @@
+#![no_std]
+
+extern crate alloc;
+
+#[allow(unused)]
+#[derive(boilerplate::Boilerplate)]
+#[boilerplate(text = "Hello, {{ self.name }}!")]
+struct Context {
+  name: &'static str,
+}
+
+#[allow(unused)]
+fn foo() {
+  boilerplate::boilerplate!("Hello!");
+}

crates/boilerplate-tests/src/lib.rs

@@ -7,7 +7,8 @@ ci:
   cargo test --all
   cargo test --all --features axum
   cargo test --all --features reload
-  cargo build --no-default-features --target thumbv6m-none-eabi
+  cargo build --target thumbv6m-none-eabi --package boilerplate
+  cargo build --target thumbv6m-none-eabi --package boilerplate-tests
 
 # publish current GitHub master branch
 publish: