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Do not print any warnings if '-A warnings' is specified on the command line

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This commit is contained in:
Jakub Bukaj 2014-11-24 14:53:12 -05:00
parent 5804a30686
commit 9d01db1966
2 changed files with 53 additions and 3 deletions
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34
src/librustc/session/config.rs
View File

@ -948,4 +948,38 @@ mod test {
assert!(test_items.next().is_some());
assert!(test_items.next().is_none());
}
#[test]
fn test_can_print_warnings() {
{
let matches = getopts(&[
"-Awarnings".to_string()
], optgroups().as_slice()).unwrap();
let registry = diagnostics::registry::Registry::new(&[]);
let sessopts = build_session_options(&matches);
let sess = build_session(sessopts, None, registry);
assert!(!sess.can_print_warnings);
}
{
let matches = getopts(&[
"-Awarnings".to_string(),
"-Dwarnings".to_string()
], optgroups().as_slice()).unwrap();
let registry = diagnostics::registry::Registry::new(&[]);
let sessopts = build_session_options(&matches);
let sess = build_session(sessopts, None, registry);
assert!(sess.can_print_warnings);
}
{
let matches = getopts(&[
"-Adead_code".to_string()
], optgroups().as_slice()).unwrap();
let registry = diagnostics::registry::Registry::new(&[]);
let sessopts = build_session_options(&matches);
let sess = build_session(sessopts, None, registry);
assert!(sess.can_print_warnings);
}
}
}

22
src/librustc/session/mod.rs
View File

@ -54,6 +54,8 @@ pub struct Session {
/// The maximum recursion limit for potentially infinitely recursive
/// operations such as auto-dereference and monomorphization.
pub recursion_limit: Cell<uint>,
pub can_print_warnings: bool
}
impl Session {
@ -82,13 +84,19 @@ impl Session {
self.diagnostic().handler().abort_if_errors()
}
pub fn span_warn(&self, sp: Span, msg: &str) {
self.diagnostic().span_warn(sp, msg)
if self.can_print_warnings {
self.diagnostic().span_warn(sp, msg)
}
}
pub fn span_warn_with_code(&self, sp: Span, msg: &str, code: &str) {
self.diagnostic().span_warn_with_code(sp, msg, code)
if self.can_print_warnings {
self.diagnostic().span_warn_with_code(sp, msg, code)
}
}
pub fn warn(&self, msg: &str) {
self.diagnostic().handler().warn(msg)
if self.can_print_warnings {
self.diagnostic().handler().warn(msg)
}
}
pub fn opt_span_warn(&self, opt_sp: Option<Span>, msg: &str) {
match opt_sp {
@ -247,6 +255,13 @@ pub fn build_session_(sopts: config::Options,
}
);
let can_print_warnings = sopts.lint_opts
.iter()
.filter(|&&(ref key, _)| key.as_slice() == "warnings")
.map(|&(_, ref level)| *level != lint::Allow)
.last()
.unwrap_or(true);
let sess = Session {
target: target_cfg,
opts: sopts,
@ -265,6 +280,7 @@ pub fn build_session_(sopts: config::Options,
crate_metadata: RefCell::new(Vec::new()),
features: RefCell::new(feature_gate::Features::new()),
recursion_limit: Cell::new(64),
can_print_warnings: can_print_warnings
};
sess.lint_store.borrow_mut().register_builtin(Some(&sess));