use rustc::{declare_tool_lint, lint_array};
use rustc_data_structures::fx::FxHashSet;
use rustc_target::spec::abi::Abi;
-use syntax::ast;
use syntax::source_map::Span;
-/// **What it does:** Checks for functions with too many parameters.
-///
-/// **Why is this bad?** Functions with lots of parameters are considered bad
-/// style and reduce readability (“what does the 5th parameter mean?”). Consider
-/// grouping some parameters into a new type.
-///
-/// **Known problems:** None.
-///
-/// **Example:**
-/// ```rust
-/// fn foo(x: u32, y: u32, name: &str, c: Color, w: f32, h: f32, a: f32, b: f32) {
-/// ..
-/// }
-/// ```
declare_clippy_lint! {
+ /// **What it does:** Checks for functions with too many parameters.
+ ///
+ /// **Why is this bad?** Functions with lots of parameters are considered bad
+ /// style and reduce readability (“what does the 5th parameter mean?”). Consider
+ /// grouping some parameters into a new type.
+ ///
+ /// **Known problems:** None.
+ ///
+ /// **Example:**
+ /// ```rust
+ /// fn foo(x: u32, y: u32, name: &str, c: Color, w: f32, h: f32, a: f32, b: f32) {
+ /// ..
+ /// }
+ /// ```
pub TOO_MANY_ARGUMENTS,
complexity,
"functions with too many arguments"
}
-/// **What it does:** Checks for functions with a large amount of lines.
-///
-/// **Why is this bad?** Functions with a lot of lines are harder to understand
-/// due to having to look at a larger amount of code to understand what the
-/// function is doing. Consider splitting the body of the function into
-/// multiple functions.
-///
-/// **Known problems:** None.
-///
-/// **Example:**
-/// ``` rust
-/// fn im_too_long() {
-/// println!("");
-/// // ... 100 more LoC
-/// println!("");
-/// }
-/// ```
declare_clippy_lint! {
+ /// **What it does:** Checks for functions with a large amount of lines.
+ ///
+ /// **Why is this bad?** Functions with a lot of lines are harder to understand
+ /// due to having to look at a larger amount of code to understand what the
+ /// function is doing. Consider splitting the body of the function into
+ /// multiple functions.
+ ///
+ /// **Known problems:** None.
+ ///
+ /// **Example:**
+ /// ``` rust
+ /// fn im_too_long() {
+ /// println!("");
+ /// // ... 100 more LoC
+ /// println!("");
+ /// }
+ /// ```
pub TOO_MANY_LINES,
pedantic,
"functions with too many lines"
}
-/// **What it does:** Checks for public functions that dereferences raw pointer
-/// arguments but are not marked unsafe.
-///
-/// **Why is this bad?** The function should probably be marked `unsafe`, since
-/// for an arbitrary raw pointer, there is no way of telling for sure if it is
-/// valid.
-///
-/// **Known problems:**
-///
-/// * It does not check functions recursively so if the pointer is passed to a
-/// private non-`unsafe` function which does the dereferencing, the lint won't
-/// trigger.
-/// * It only checks for arguments whose type are raw pointers, not raw pointers
-/// got from an argument in some other way (`fn foo(bar: &[*const u8])` or
-/// `some_argument.get_raw_ptr()`).
-///
-/// **Example:**
-/// ```rust
-/// pub fn foo(x: *const u8) {
-/// println!("{}", unsafe { *x });
-/// }
-/// ```
declare_clippy_lint! {
+ /// **What it does:** Checks for public functions that dereferences raw pointer
+ /// arguments but are not marked unsafe.
+ ///
+ /// **Why is this bad?** The function should probably be marked `unsafe`, since
+ /// for an arbitrary raw pointer, there is no way of telling for sure if it is
+ /// valid.
+ ///
+ /// **Known problems:**
+ ///
+ /// * It does not check functions recursively so if the pointer is passed to a
+ /// private non-`unsafe` function which does the dereferencing, the lint won't
+ /// trigger.
+ /// * It only checks for arguments whose type are raw pointers, not raw pointers
+ /// got from an argument in some other way (`fn foo(bar: &[*const u8])` or
+ /// `some_argument.get_raw_ptr()`).
+ ///
+ /// **Example:**
+ /// ```rust
+ /// pub fn foo(x: *const u8) {
+ /// println!("{}", unsafe { *x });
+ /// }
+ /// ```
pub NOT_UNSAFE_PTR_ARG_DEREF,
correctness,
"public functions dereferencing raw pointer arguments but not marked `unsafe`"
hir_id: hir::HirId,
) {
let expr = &body.value;
- let node_id = cx.tcx.hir().hir_to_node_id(hir_id);
- if unsafety == hir::Unsafety::Normal && cx.access_levels.is_exported(node_id) {
+ if unsafety == hir::Unsafety::Normal && cx.access_levels.is_exported(hir_id) {
let raw_ptrs = iter_input_pats(decl, body)
.zip(decl.inputs.iter())
.filter_map(|(arg, ty)| raw_ptr_arg(arg, ty))
}
}
-fn raw_ptr_arg(arg: &hir::Arg, ty: &hir::Ty) -> Option<ast::NodeId> {
- if let (&hir::PatKind::Binding(_, id, _, _, _), &hir::TyKind::Ptr(_)) = (&arg.pat.node, &ty.node) {
+fn raw_ptr_arg(arg: &hir::Arg, ty: &hir::Ty) -> Option<hir::HirId> {
+ if let (&hir::PatKind::Binding(_, id, _, _), &hir::TyKind::Ptr(_)) = (&arg.pat.node, &ty.node) {
Some(id)
} else {
None
struct DerefVisitor<'a, 'tcx: 'a> {
cx: &'a LateContext<'a, 'tcx>,
- ptrs: FxHashSet<ast::NodeId>,
+ ptrs: FxHashSet<hir::HirId>,
tables: &'a ty::TypeckTables<'tcx>,
}
}
},
hir::ExprKind::MethodCall(_, _, ref args) => {
- let def_id = self.tables.type_dependent_defs()[expr.hir_id].def_id();
+ let def_id = self.tables.type_dependent_def_id(expr.hir_id).unwrap();
let base_type = self.cx.tcx.type_of(def_id);
if type_is_unsafe_function(self.cx, base_type) {
fn check_arg(&self, ptr: &hir::Expr) {
if let hir::ExprKind::Path(ref qpath) = ptr.node {
if let Def::Local(id) = self.cx.tables.qpath_def(qpath, ptr.hir_id) {
- if self.ptrs.contains(&id) {
+ if self.ptrs.contains(&self.cx.tcx.hir().node_to_hir_id(id)) {
span_lint(
self.cx,
NOT_UNSAFE_PTR_ARG_DEREF,
projects / rust.git / blobdiff