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This commit is contained in:
Oliver Schneider 2017-04-12 11:06:32 +02:00
parent 81401ddc8c
commit 5842463562
15 changed files with 218 additions and 166 deletions
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10
clippy_lints/src/copies.rs
View file

@ -223,7 +223,7 @@ fn lint_match_arms(cx: &LateContext, expr: &Expr) {
/// `if a { c } else if b { d } else { e }`.
fn if_sequence(mut expr: &Expr) -> (SmallVector<&Expr>, SmallVector<&Block>) {
let mut conds = SmallVector::new();
let mut blocks : SmallVector<&Block> = SmallVector::new();
let mut blocks: SmallVector<&Block> = SmallVector::new();
while let ExprIf(ref cond, ref then_expr, ref else_expr) = expr.node {
conds.push(&**cond);
@ -315,10 +315,10 @@ fn search_same<T, Hash, Eq>(exprs: &[T], hash: Hash, eq: Eq) -> Option<(&T, &T)>
return None;
} else if exprs.len() == 2 {
return if eq(&exprs[0], &exprs[1]) {
Some((&exprs[0], &exprs[1]))
} else {
None
};
Some((&exprs[0], &exprs[1]))
} else {
None
};
}
let mut map: HashMap<_, Vec<&_>> = HashMap::with_capacity(exprs.len());

4
clippy_lints/src/entry.rs
View file

@ -46,11 +46,11 @@ impl<'a, 'tcx> LateLintPass<'a, 'tcx> for HashMapLint {
if let Some((ty, map, key)) = check_cond(cx, check) {
// in case of `if !m.contains_key(&k) { m.insert(k, v); }`
// we can give a better error message
let sole_expr = {
let sole_expr = {
else_block.is_none() &&
if let ExprBlock(ref then_block) = then_block.node {
(then_block.expr.is_some() as usize) + then_block.stmts.len() == 1
} else {
} else {
true
}
};

97
clippy_lints/src/eq_op.rs
View file

@ -56,9 +56,9 @@ impl<'a, 'tcx> LateLintPass<'a, 'tcx> for EqOp {
if is_valid_operator(op) {
if SpanlessEq::new(cx).ignore_fn().eq_expr(left, right) {
span_lint(cx,
EQ_OP,
e.span,
&format!("equal expressions as operands to `{}`", op.node.as_str()));
EQ_OP,
e.span,
&format!("equal expressions as operands to `{}`", op.node.as_str()));
} else {
let trait_id = match op.node {
BiAdd => cx.tcx.lang_items.add_trait(),
@ -66,19 +66,14 @@ impl<'a, 'tcx> LateLintPass<'a, 'tcx> for EqOp {
BiMul => cx.tcx.lang_items.mul_trait(),
BiDiv => cx.tcx.lang_items.div_trait(),
BiRem => cx.tcx.lang_items.rem_trait(),
BiAnd |
BiOr => None,
BiAnd | BiOr => None,
BiBitXor => cx.tcx.lang_items.bitxor_trait(),
BiBitAnd => cx.tcx.lang_items.bitand_trait(),
BiBitOr => cx.tcx.lang_items.bitor_trait(),
BiShl => cx.tcx.lang_items.shl_trait(),
BiShr => cx.tcx.lang_items.shr_trait(),
BiNe |
BiEq => cx.tcx.lang_items.eq_trait(),
BiLt |
BiLe |
BiGe |
BiGt => cx.tcx.lang_items.ord_trait(),
BiNe | BiEq => cx.tcx.lang_items.eq_trait(),
BiLt | BiLe | BiGe | BiGt => cx.tcx.lang_items.ord_trait(),
};
if let Some(trait_id) = trait_id {
#[allow(match_same_arms)]
@ -90,57 +85,55 @@ impl<'a, 'tcx> LateLintPass<'a, 'tcx> for EqOp {
(&ExprAddrOf(_, ref l), &ExprAddrOf(_, ref r)) => {
if implements_trait(cx, cx.tables.expr_ty(l), trait_id, &[cx.tables.expr_ty(r)], None) {
span_lint_and_then(cx,
OP_REF,
e.span,
"taken reference of both operands, which is done automatically by the operator anyway",
|db| {
let lsnip = snippet(cx, l.span, "...").to_string();
let rsnip = snippet(cx, r.span, "...").to_string();
multispan_sugg(db,
"use the values directly".to_string(),
vec![(left.span, lsnip),
OP_REF,
e.span,
"taken reference of both operands, which is done automatically \
by the operator anyway",
|db| {
let lsnip = snippet(cx, l.span, "...").to_string();
let rsnip = snippet(cx, r.span, "...").to_string();
multispan_sugg(db,
"use the values directly".to_string(),
vec![(left.span, lsnip),
(right.span, rsnip)]);
}
)
})
}
}
},
// &foo == bar
(&ExprAddrOf(_, ref l), _) => {
if implements_trait(cx, cx.tables.expr_ty(l), trait_id, &[cx.tables.expr_ty(right)], None) {
span_lint_and_then(cx,
OP_REF,
e.span,
"taken reference of left operand",
|db| {
let lsnip = snippet(cx, l.span, "...").to_string();
let rsnip = Sugg::hir(cx, right, "...").deref().to_string();
multispan_sugg(db,
"dereference the right operand instead".to_string(),
vec![(left.span, lsnip),
if implements_trait(cx,
cx.tables.expr_ty(l),
trait_id,
&[cx.tables.expr_ty(right)],
None) {
span_lint_and_then(cx, OP_REF, e.span, "taken reference of left operand", |db| {
let lsnip = snippet(cx, l.span, "...").to_string();
let rsnip = Sugg::hir(cx, right, "...").deref().to_string();
multispan_sugg(db,
"dereference the right operand instead".to_string(),
vec![(left.span, lsnip),
(right.span, rsnip)]);
}
)
})
}
}
},
// foo == &bar
(_, &ExprAddrOf(_, ref r)) => {
if implements_trait(cx, cx.tables.expr_ty(left), trait_id, &[cx.tables.expr_ty(r)], None) {
span_lint_and_then(cx,
OP_REF,
e.span,
"taken reference of right operand",
|db| {
let lsnip = Sugg::hir(cx, left, "...").deref().to_string();
let rsnip = snippet(cx, r.span, "...").to_string();
multispan_sugg(db,
"dereference the left operand instead".to_string(),
vec![(left.span, lsnip),
if implements_trait(cx,
cx.tables.expr_ty(left),
trait_id,
&[cx.tables.expr_ty(r)],
None) {
span_lint_and_then(cx, OP_REF, e.span, "taken reference of right operand", |db| {
let lsnip = Sugg::hir(cx, left, "...").deref().to_string();
let rsnip = snippet(cx, r.span, "...").to_string();
multispan_sugg(db,
"dereference the left operand instead".to_string(),
vec![(left.span, lsnip),
(right.span, rsnip)]);
}
)
})
}
}
_ => {}
},
_ => {},
}
}
}

40
clippy_lints/src/formatting.rs
View file

@ -100,11 +100,19 @@ impl EarlyLintPass for Formatting {
fn check_assign(cx: &EarlyContext, expr: &ast::Expr) {
if let ast::ExprKind::Assign(ref lhs, ref rhs) = expr.node {
if !differing_macro_contexts(lhs.span, rhs.span) && !in_macro(lhs.span) {
let eq_span = Span { lo: lhs.span.hi, hi: rhs.span.lo, ctxt: NO_EXPANSION };
let eq_span = Span {
lo: lhs.span.hi,
hi: rhs.span.lo,
ctxt: NO_EXPANSION,
};
if let ast::ExprKind::Unary(op, ref sub_rhs) = rhs.node {
if let Some(eq_snippet) = snippet_opt(cx, eq_span) {
let op = ast::UnOp::to_string(op);
let eqop_span= Span { lo: lhs.span.hi, hi: sub_rhs.span.lo, ctxt: NO_EXPANSION };
let eqop_span = Span {
lo: lhs.span.hi,
hi: sub_rhs.span.lo,
ctxt: NO_EXPANSION,
};
if eq_snippet.ends_with('=') {
span_note_and_lint(cx,
SUSPICIOUS_ASSIGNMENT_FORMATTING,
@ -127,7 +135,11 @@ fn check_else_if(cx: &EarlyContext, expr: &ast::Expr) {
if unsugar_if(else_).is_some() && !differing_macro_contexts(then.span, else_.span) && !in_macro(then.span) {
// this will be a span from the closing ‘}’ of the “then” block (excluding) to the
// “if” of the “else if” block (excluding)
let else_span = Span { lo: then.span.hi, hi: else_.span.lo, ctxt: NO_EXPANSION };
let else_span = Span {
lo: then.span.hi,
hi: else_.span.lo,
ctxt: NO_EXPANSION,
};
// the snippet should look like " else \n " with maybe comments anywhere
// it’s bad when there is a ‘\n’ after the “else”
@ -154,9 +166,17 @@ fn check_array(cx: &EarlyContext, expr: &ast::Expr) {
for element in array {
if let ast::ExprKind::Binary(ref op, ref lhs, _) = element.node {
if !differing_macro_contexts(lhs.span, op.span) {
let space_span = Span { lo: lhs.span.hi, hi: op.span.lo, ctxt: NO_EXPANSION };
let space_span = Span {
lo: lhs.span.hi,
hi: op.span.lo,
ctxt: NO_EXPANSION,
};
if let Some(space_snippet) = snippet_opt(cx, space_span) {
let lint_span = Span { lo: lhs.span.hi, hi: lhs.span.hi, ctxt: NO_EXPANSION };
let lint_span = Span {
lo: lhs.span.hi,
hi: lhs.span.hi,
ctxt: NO_EXPANSION,
};
if space_snippet.contains('\n') {
span_note_and_lint(cx,
POSSIBLE_MISSING_COMMA,
@ -174,10 +194,14 @@ fn check_array(cx: &EarlyContext, expr: &ast::Expr) {
/// Implementation of the `SUSPICIOUS_ELSE_FORMATTING` lint for consecutive ifs.
fn check_consecutive_ifs(cx: &EarlyContext, first: &ast::Expr, second: &ast::Expr) {
if !differing_macro_contexts(first.span, second.span) && !in_macro(first.span) &&
unsugar_if(first).is_some() && unsugar_if(second).is_some() {
if !differing_macro_contexts(first.span, second.span) && !in_macro(first.span) && unsugar_if(first).is_some() &&
unsugar_if(second).is_some() {
// where the else would be
let else_span = Span { lo: first.span.hi, hi: second.span.lo, ctxt: NO_EXPANSION };
let else_span = Span {
lo: first.span.hi,
hi: second.span.lo,
ctxt: NO_EXPANSION,
};
if let Some(else_snippet) = snippet_opt(cx, else_span) {
if !else_snippet.contains('\n') {

24
clippy_lints/src/lifetimes.rs
View file

@ -89,7 +89,13 @@ enum RefLt {
Named(Name),
}
fn check_fn_inner<'a, 'tcx>(cx: &LateContext<'a, 'tcx>, decl: &'tcx FnDecl, body: Option<BodyId>, generics: &'tcx Generics, span: Span) {
fn check_fn_inner<'a, 'tcx>(
cx: &LateContext<'a, 'tcx>,
decl: &'tcx FnDecl,
body: Option<BodyId>,
generics: &'tcx Generics,
span: Span
) {
if in_external_macro(cx, span) || has_where_lifetimes(cx, &generics.where_clause) {
return;
}
@ -128,7 +134,7 @@ fn could_use_elision<'a, 'tcx: 'a>(
func: &'tcx FnDecl,
body: Option<BodyId>,
named_lts: &'tcx [LifetimeDef],
bounds_lts: Vec<&'tcx Lifetime>,
bounds_lts: Vec<&'tcx Lifetime>
) -> bool {
// There are two scenarios where elision works:
// * no output references, all input references have different LT
@ -265,11 +271,7 @@ impl<'v, 't> RefVisitor<'v, 't> {
}
fn into_vec(self) -> Option<Vec<RefLt>> {
if self.abort {
None
} else {
Some(self.lts)
}
if self.abort { None } else { Some(self.lts) }
}
fn collect_anonymous_lifetimes(&mut self, qpath: &QPath, ty: &Ty) {
@ -359,9 +361,11 @@ fn has_where_lifetimes<'a, 'tcx: 'a>(cx: &LateContext<'a, 'tcx>, where_clause: &
// and check that all lifetimes are allowed
match visitor.into_vec() {
None => return false,
Some(lts) => for lt in lts {
if !allowed_lts.contains(&lt) {
return true;
Some(lts) => {
for lt in lts {
if !allowed_lts.contains(&lt) {
return true;
}
}
},
}

3
clippy_lints/src/loops.rs
View file

@ -409,8 +409,7 @@ impl<'a, 'tcx> LateLintPass<'a, 'tcx> for Pass {
fn check_stmt(&mut self, cx: &LateContext<'a, 'tcx>, stmt: &'tcx Stmt) {
if let StmtSemi(ref expr, _) = stmt.node {
if let ExprMethodCall(ref method, _, ref args) = expr.node {
if args.len() == 1 && method.node == "collect" &&
match_trait_method(cx, expr, &paths::ITERATOR) {
if args.len() == 1 && method.node == "collect" && match_trait_method(cx, expr, &paths::ITERATOR) {
span_lint(cx,
UNUSED_COLLECT,
expr.span,

4
clippy_lints/src/misc.rs
View file

@ -499,9 +499,7 @@ fn is_used(cx: &LateContext, expr: &Expr) -> bool {
/// Test whether an expression is in a macro expansion (e.g. something generated by
/// `#[derive(...)`] or the like).
fn in_attributes_expansion(expr: &Expr) -> bool {
expr.span.ctxt.outer().expn_info().map_or(false, |info| {
matches!(info.callee.format, ExpnFormat::MacroAttribute(_))
})
expr.span.ctxt.outer().expn_info().map_or(false, |info| matches!(info.callee.format, ExpnFormat::MacroAttribute(_)))
}
/// Test whether `def` is a variable defined outside a macro.

42
clippy_lints/src/needless_bool.rs
View file

@ -77,27 +77,27 @@ impl<'a, 'tcx> LateLintPass<'a, 'tcx> for NeedlessBool {
|db| { db.span_suggestion(e.span, "you can reduce it to", hint); });
};
if let ExprBlock(ref then_block) = then_block.node {
match (fetch_bool_block(then_block), fetch_bool_expr(else_expr)) {
(RetBool(true), RetBool(true)) |
(Bool(true), Bool(true)) => {
span_lint(cx,
NEEDLESS_BOOL,
e.span,
"this if-then-else expression will always return true");
},
(RetBool(false), RetBool(false)) |
(Bool(false), Bool(false)) => {
span_lint(cx,
NEEDLESS_BOOL,
e.span,
"this if-then-else expression will always return false");
},
(RetBool(true), RetBool(false)) => reduce(true, false),
(Bool(true), Bool(false)) => reduce(false, false),
(RetBool(false), RetBool(true)) => reduce(true, true),
(Bool(false), Bool(true)) => reduce(false, true),
_ => (),
}
match (fetch_bool_block(then_block), fetch_bool_expr(else_expr)) {
(RetBool(true), RetBool(true)) |
(Bool(true), Bool(true)) => {
span_lint(cx,
NEEDLESS_BOOL,
e.span,
"this if-then-else expression will always return true");
},
(RetBool(false), RetBool(false)) |
(Bool(false), Bool(false)) => {
span_lint(cx,
NEEDLESS_BOOL,
e.span,
"this if-then-else expression will always return false");
},
(RetBool(true), RetBool(false)) => reduce(true, false),
(Bool(true), Bool(false)) => reduce(false, false),
(RetBool(false), RetBool(true)) => reduce(true, true),
(Bool(false), Bool(true)) => reduce(false, true),
_ => (),
}
} else {
panic!("IfExpr 'then' node is not an ExprBlock");
}

2
clippy_lints/src/utils/hir.rs
View file

@ -97,7 +97,7 @@ impl<'a, 'tcx: 'a> SpanlessEq<'a, 'tcx> {
},
(&ExprIndex(ref la, ref li), &ExprIndex(ref ra, ref ri)) => self.eq_expr(la, ra) && self.eq_expr(li, ri),
(&ExprIf(ref lc, ref lt, ref le), &ExprIf(ref rc, ref rt, ref re)) => {
self.eq_expr(lc, rc) && self.eq_expr(&**lt, &**rt) && both(le, re, |l, r| self.eq_expr(l, r))
self.eq_expr(lc, rc) && self.eq_expr(&**lt, &**rt) && both(le, re, |l, r| self.eq_expr(l, r))
},
(&ExprLit(ref l), &ExprLit(ref r)) => l.node == r.node,
(&ExprLoop(ref lb, ref ll, ref lls), &ExprLoop(ref rb, ref rl, ref rls)) => {

12
clippy_lints/src/utils/mod.rs
View file

@ -690,8 +690,10 @@ fn parse_attrs<F: FnMut(u64)>(sess: &Session, attrs: &[ast::Attribute], name: &'
/// See also `is_direct_expn_of`.
pub fn is_expn_of(mut span: Span, name: &str) -> Option<Span> {
loop {
let span_name_span = span.ctxt.outer()
.expn_info().map(|ei| (ei.callee.name(), ei.call_site));
let span_name_span = span.ctxt
.outer()
.expn_info()
.map(|ei| (ei.callee.name(), ei.call_site));
match span_name_span {
Some((mac_name, new_span)) if mac_name == name => return Some(new_span),
@ -709,8 +711,10 @@ pub fn is_expn_of(mut span: Span, name: &str) -> Option<Span> {
/// `42` is considered expanded from `foo!` and `bar!` by `is_expn_of` but only `bar!` by
/// `is_direct_expn_of`.
pub fn is_direct_expn_of(span: Span, name: &str) -> Option<Span> {
let span_name_span = span.ctxt.outer()
.expn_info().map(|ei| (ei.callee.name(), ei.call_site));
let span_name_span = span.ctxt
.outer()
.expn_info()
.map(|ei| (ei.callee.name(), ei.call_site));
match span_name_span {
Some((mac_name, new_span)) if mac_name == name => Some(new_span),

9
src/lib.rs
View file

@ -12,8 +12,13 @@ extern crate clippy_lints;
#[plugin_registrar]
pub fn plugin_registrar(reg: &mut Registry) {
if let Ok(lint_store) = reg.sess.lint_store.try_borrow() {
if lint_store.get_lint_groups().iter().any(|&(s, _, _)| s == "clippy") {
reg.sess.struct_warn("running cargo clippy on a crate that also imports the clippy plugin").emit();
if lint_store
.get_lint_groups()
.iter()
.any(|&(s, _, _)| s == "clippy") {
reg.sess
.struct_warn("running cargo clippy on a crate that also imports the clippy plugin")
.emit();
return;
}
}

116
src/main.rs
View file

@ -43,9 +43,10 @@ impl<'a> CompilerCalls<'a> for ClippyCompilerCalls {
sopts: &config::Options,
cfg: &ast::CrateConfig,
descriptions: &rustc_errors::registry::Registry,
output: ErrorOutputType
output: ErrorOutputType,
) -> Compilation {
self.default.early_callback(matches, sopts, cfg, descriptions, output)
self.default
.early_callback(matches, sopts, cfg, descriptions, output)
}
fn no_input(
&mut self,
@ -54,9 +55,10 @@ impl<'a> CompilerCalls<'a> for ClippyCompilerCalls {
cfg: &ast::CrateConfig,
odir: &Option<PathBuf>,
ofile: &Option<PathBuf>,
descriptions: &rustc_errors::registry::Registry
descriptions: &rustc_errors::registry::Registry,
) -> Option<(Input, Option<PathBuf>)> {
self.default.no_input(matches, sopts, cfg, odir, ofile, descriptions)
self.default
.no_input(matches, sopts, cfg, odir, ofile, descriptions)
}
fn late_callback(
&mut self,
@ -64,9 +66,10 @@ impl<'a> CompilerCalls<'a> for ClippyCompilerCalls {
sess: &Session,
input: &Input,
odir: &Option<PathBuf>,
ofile: &Option<PathBuf>
ofile: &Option<PathBuf>,
) -> Compilation {
self.default.late_callback(matches, sess, input, odir, ofile)
self.default
.late_callback(matches, sess, input, odir, ofile)
}
fn build_controller(&mut self, sess: &Session, matches: &getopts::Matches) -> driver::CompileController<'a> {
let mut control = self.default.build_controller(sess, matches);
@ -76,7 +79,8 @@ impl<'a> CompilerCalls<'a> for ClippyCompilerCalls {
control.after_parse.callback = Box::new(move |state| {
{
let mut registry = rustc_plugin::registry::Registry::new(state.session,
state.krate
state
.krate
.as_ref()
.expect("at this compilation stage \
the krate must be parsed")
@ -84,12 +88,14 @@ impl<'a> CompilerCalls<'a> for ClippyCompilerCalls {
registry.args_hidden = Some(Vec::new());
clippy_lints::register_plugins(&mut registry);
let rustc_plugin::registry::Registry { early_lint_passes,
late_lint_passes,
lint_groups,
llvm_passes,
attributes,
.. } = registry;
let rustc_plugin::registry::Registry {
early_lint_passes,
late_lint_passes,
lint_groups,
llvm_passes,
attributes,
..
} = registry;
let sess = &state.session;
let mut ls = sess.lint_store.borrow_mut();
for pass in early_lint_passes {
@ -172,29 +178,35 @@ pub fn main() {
if let Some("clippy") = std::env::args().nth(1).as_ref().map(AsRef::as_ref) {
// this arm is executed on the initial call to `cargo clippy`
let manifest_path_arg = std::env::args().skip(2).find(|val| val.starts_with("--manifest-path="));
let manifest_path_arg = std::env::args()
.skip(2)
.find(|val| val.starts_with("--manifest-path="));
let mut metadata = if let Ok(metadata) = cargo_metadata::metadata(manifest_path_arg.as_ref()
.map(AsRef::as_ref)) {
metadata
} else {
let _ = io::stderr().write_fmt(format_args!("error: Could not obtain cargo metadata.\n"));
process::exit(101);
};
let mut metadata =
if let Ok(metadata) = cargo_metadata::metadata(manifest_path_arg.as_ref().map(AsRef::as_ref)) {
metadata
} else {
let _ = io::stderr().write_fmt(format_args!("error: Could not obtain cargo metadata.\n"));
process::exit(101);
};
let manifest_path = manifest_path_arg.map(|arg| PathBuf::from(Path::new(&arg["--manifest-path=".len()..])));
let current_dir = std::env::current_dir();
let package_index = metadata.packages
let package_index = metadata
.packages
.iter()
.position(|package| {
let package_manifest_path = Path::new(&package.manifest_path);
if let Some(ref manifest_path) = manifest_path {
package_manifest_path == manifest_path
} else {
let current_dir = current_dir.as_ref().expect("could not read current directory");
let package_manifest_directory = package_manifest_path.parent()
let current_dir = current_dir
.as_ref()
.expect("could not read current directory");
let package_manifest_directory = package_manifest_path
.parent()
.expect("could not find parent directory of package manifest");
package_manifest_directory == current_dir
}
@ -209,7 +221,9 @@ pub fn main() {
std::process::exit(code);
}
} else if ["bin", "example", "test", "bench"].contains(&&**first) {
if let Err(code) = process(vec![format!("--{}", first), target.name].into_iter().chain(args)) {
if let Err(code) = process(vec![format!("--{}", first), target.name]
.into_iter()
.chain(args)) {
std::process::exit(code);
}
}
@ -218,7 +232,8 @@ pub fn main() {
}
}
} else {
// this arm is executed when cargo-clippy runs `cargo rustc` with the `RUSTC` env var set to itself
// this arm is executed when cargo-clippy runs `cargo rustc` with the `RUSTC`
// env var set to itself
let home = option_env!("RUSTUP_HOME").or(option_env!("MULTIRUST_HOME"));
let toolchain = option_env!("RUSTUP_TOOLCHAIN").or(option_env!("MULTIRUST_TOOLCHAIN"));
@ -240,31 +255,36 @@ pub fn main() {
};
rustc_driver::in_rustc_thread(|| {
// this conditional check for the --sysroot flag is there so users can call `cargo-clippy` directly
// without having to pass --sysroot or anything
let mut args: Vec<String> = if env::args().any(|s| s == "--sysroot") {
env::args().collect()
} else {
env::args().chain(Some("--sysroot".to_owned())).chain(Some(sys_root)).collect()
};
// this conditional check for the --sysroot flag is there so users can call
// `cargo-clippy` directly
// without having to pass --sysroot or anything
let mut args: Vec<String> = if env::args().any(|s| s == "--sysroot") {
env::args().collect()
} else {
env::args()
.chain(Some("--sysroot".to_owned()))
.chain(Some(sys_root))
.collect()
};
// this check ensures that dependencies are built but not linted and the final crate is
// linted but not built
let clippy_enabled = env::args().any(|s| s == "-Zno-trans");
// this check ensures that dependencies are built but not linted and the final
// crate is
// linted but not built
let clippy_enabled = env::args().any(|s| s == "-Zno-trans");
if clippy_enabled {
args.extend_from_slice(&["--cfg".to_owned(), r#"feature="cargo-clippy""#.to_owned()]);
if clippy_enabled {
args.extend_from_slice(&["--cfg".to_owned(), r#"feature="cargo-clippy""#.to_owned()]);
}
let mut ccc = ClippyCompilerCalls::new(clippy_enabled);
let (result, _) = rustc_driver::run_compiler(&args, &mut ccc, None, None);
if let Err(err_count) = result {
if err_count > 0 {
std::process::exit(1);
}
let mut ccc = ClippyCompilerCalls::new(clippy_enabled);
let (result, _) = rustc_driver::run_compiler(&args, &mut ccc, None, None);
if let Err(err_count) = result {
if err_count > 0 {
std::process::exit(1);
}
}
})
.expect("rustc_thread failed");
}
})
.expect("rustc_thread failed");
}
}

10
tests/cc_seme.rs
View file

@ -14,14 +14,14 @@ struct Test {
fn main() {
use Baz::*;
let x = Test {
t: Some(0),
b: One,
};
let x = Test { t: Some(0), b: One };
match x {
Test { t: Some(_), b: One } => unreachable!(),
Test { t: Some(42), b: Two } => unreachable!(),
Test {
t: Some(42),
b: Two,
} => unreachable!(),
Test { t: None, .. } => unreachable!(),
Test { .. } => unreachable!(),
}

8
tests/matches.rs
View file

@ -20,9 +20,13 @@ fn test_overlapping() {
assert_eq!(None, overlapping(&[sp(1, Bound::Included(4))]));
assert_eq!(None, overlapping(&[sp(1, Bound::Included(4)), sp(5, Bound::Included(6))]));
assert_eq!(None,
overlapping(&[sp(1, Bound::Included(4)), sp(5, Bound::Included(6)), sp(10, Bound::Included(11))]));
overlapping(&[sp(1, Bound::Included(4)),
sp(5, Bound::Included(6)),
sp(10, Bound::Included(11))]));
assert_eq!(Some((&sp(1, Bound::Included(4)), &sp(3, Bound::Included(6)))),
overlapping(&[sp(1, Bound::Included(4)), sp(3, Bound::Included(6))]));
assert_eq!(Some((&sp(5, Bound::Included(6)), &sp(6, Bound::Included(11)))),
overlapping(&[sp(1, Bound::Included(4)), sp(5, Bound::Included(6)), sp(6, Bound::Included(11))]));
overlapping(&[sp(1, Bound::Included(4)),
sp(5, Bound::Included(6)),
sp(6, Bound::Included(11))]));
}

3
tests/used_underscore_binding_macro.rs
View file

@ -4,7 +4,8 @@
#[macro_use]
extern crate serde_derive;
/// Test that we do not lint for unused underscores in a `MacroAttribute` expansion
/// Test that we do not lint for unused underscores in a `MacroAttribute`
/// expansion
#[deny(used_underscore_binding)]
#[derive(Deserialize)]
struct MacroAttributesTest {