Vendor dependencies

notes-service/vendor/derive_builder/tests/ignore/no_std.rs

@@ -0,0 +1,87 @@
+//! Compile behavior test for derive_builder on no_std. Unfortunately, this has broken
+//! too many times due to changes in requirements for no_std, and therefore this test
+//! is no longer part of the required nightly pass.
+
+// requires nightly toolchain!
+//
+// compile-flags:-C panic=abort
+#![no_std]
+#![feature(alloc, allocator_api, lang_items, start, core_intrinsics, oom)]
+#![allow(dead_code)]
+use core::intrinsics;
+use core::panic::PanicInfo;
+
+
+// Pull in the system libc library for what crt0.o likely requires.
+// extern crate libc;
+
+#[macro_use]
+extern crate derive_builder;
+extern crate alloc;
+
+#[derive(Builder)]
+#[builder(no_std)]
+struct IgnoreEmptyStruct {}
+
+#[derive(Builder, PartialEq, Debug)]
+#[builder(no_std)]
+struct Foo {
+    #[builder(default)]
+    defaulted: u32,
+    #[builder(setter(skip), try_setter)]
+    skipped: u32,
+}
+
+fn main() {
+    let foo = FooBuilder::default()
+        .build()
+        .unwrap();
+
+    assert_eq!(foo, Foo {
+        defaulted: 0,
+        skipped: 0,
+    })
+}
+
+///////////////////////////////////////////////////////////////
+// some no_std-boilerplate
+// from https://doc.rust-lang.org/book/no-stdlib.html
+///////////////////////////////////////////////////////////////
+
+// These functions and traits are used by the compiler, but not
+// for a bare-bones hello world. These are normally
+// provided by libstd.
+#[lang = "eh_personality"]
+#[no_mangle]
+pub extern  fn eh_personality() {}
+
+// This function may be needed based on the compilation target.
+#[lang = "eh_unwind_resume"]
+#[no_mangle]
+pub extern fn rust_eh_unwind_resume() {
+}
+
+#[panic_handler]
+#[no_mangle]
+fn panic(_info: &PanicInfo) -> ! {
+    unsafe { intrinsics::abort() }
+}
+
+#[lang = "oom"]
+#[no_mangle]
+pub extern fn rust_oom(_: core::alloc::Layout) -> ! {
+    unsafe { intrinsics::abort() }
+}
+
+#[allow(non_snake_case)]
+#[no_mangle]
+pub extern "C" fn _Unwind_Resume() -> ! {
+    unsafe { intrinsics::abort() }
+}
+
+// Entry point for this program
+#[start]
+fn start(_argc: isize, _argv: *const *const u8) -> isize {
+    main();
+    0
+}