diff options
Diffstat (limited to '')
| -rw-r--r-- | src/tools/clippy/clippy_lints/src/slow_vector_initialization.rs | 16 |
1 files changed, 7 insertions, 9 deletions
diff --git a/src/tools/clippy/clippy_lints/src/slow_vector_initialization.rs b/src/tools/clippy/clippy_lints/src/slow_vector_initialization.rs index c07aa00a1..760399231 100644 --- a/src/tools/clippy/clippy_lints/src/slow_vector_initialization.rs +++ b/src/tools/clippy/clippy_lints/src/slow_vector_initialization.rs @@ -1,9 +1,10 @@ use clippy_utils::diagnostics::span_lint_and_then; use clippy_utils::sugg::Sugg; use clippy_utils::ty::is_type_diagnostic_item; -use clippy_utils::{get_enclosing_block, is_expr_path_def_path, path_to_local, path_to_local_id, paths, SpanlessEq}; +use clippy_utils::{ + get_enclosing_block, is_integer_literal, is_path_diagnostic_item, path_to_local, path_to_local_id, SpanlessEq, +}; use if_chain::if_chain; -use rustc_ast::ast::LitKind; use rustc_errors::Applicability; use rustc_hir::intravisit::{walk_block, walk_expr, walk_stmt, Visitor}; use rustc_hir::{BindingAnnotation, Block, Expr, ExprKind, HirId, PatKind, QPath, Stmt, StmtKind}; @@ -174,7 +175,7 @@ impl SlowVectorInit { diag.span_suggestion( vec_alloc.allocation_expr.span, "consider replace allocation with", - format!("vec![0; {}]", len_expr), + format!("vec![0; {len_expr}]"), Applicability::Unspecified, ); }); @@ -219,8 +220,7 @@ impl<'a, 'tcx> VectorInitializationVisitor<'a, 'tcx> { && path_to_local_id(self_arg, self.vec_alloc.local_id) && path.ident.name == sym!(resize) // Check that is filled with 0 - && let ExprKind::Lit(ref lit) = fill_arg.kind - && let LitKind::Int(0, _) = lit.node { + && is_integer_literal(fill_arg, 0) { // Check that len expression is equals to `with_capacity` expression if SpanlessEq::new(self.cx).eq_expr(len_arg, self.vec_alloc.len_expr) { self.slow_expression = Some(InitializationType::Resize(expr)); @@ -254,10 +254,8 @@ impl<'a, 'tcx> VectorInitializationVisitor<'a, 'tcx> { fn is_repeat_zero(&self, expr: &Expr<'_>) -> bool { if_chain! { if let ExprKind::Call(fn_expr, [repeat_arg]) = expr.kind; - if is_expr_path_def_path(self.cx, fn_expr, &paths::ITER_REPEAT); - if let ExprKind::Lit(ref lit) = repeat_arg.kind; - if let LitKind::Int(0, _) = lit.node; - + if is_path_diagnostic_item(self.cx, fn_expr, sym::iter_repeat); + if is_integer_literal(repeat_arg, 0); then { true } else { |