diff options
Diffstat (limited to 'tests/ui-fulldeps/auxiliary/lint-plugin-test.rs')
-rw-r--r-- | tests/ui-fulldeps/auxiliary/lint-plugin-test.rs | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/tests/ui-fulldeps/auxiliary/lint-plugin-test.rs b/tests/ui-fulldeps/auxiliary/lint-plugin-test.rs new file mode 100644 index 000000000..30956deb7 --- /dev/null +++ b/tests/ui-fulldeps/auxiliary/lint-plugin-test.rs @@ -0,0 +1,33 @@ +// force-host + +#![feature(rustc_private)] + +extern crate rustc_ast; + +// Load rustc as a plugin to get macros +extern crate rustc_driver; +#[macro_use] +extern crate rustc_lint; +#[macro_use] +extern crate rustc_session; + +use rustc_driver::plugin::Registry; +use rustc_lint::{EarlyContext, EarlyLintPass, LintArray, LintContext, LintPass}; +use rustc_ast as ast; +declare_lint!(TEST_LINT, Warn, "Warn about items named 'lintme'"); + +declare_lint_pass!(Pass => [TEST_LINT]); + +impl EarlyLintPass for Pass { + fn check_item(&mut self, cx: &EarlyContext, it: &ast::Item) { + if it.ident.name.as_str() == "lintme" { + cx.lint(TEST_LINT, "item is named 'lintme'", |lint| lint.set_span(it.span)); + } + } +} + +#[no_mangle] +fn __rustc_plugin_registrar(reg: &mut Registry) { + reg.lint_store.register_lints(&[&TEST_LINT]); + reg.lint_store.register_early_pass(|| Box::new(Pass)); +} |