use crate::utils::{is_direct_expn_of, span_lint_and_help};
use if_chain::if_chain;
+use rustc_ast::ast::{Expr, ExprKind};
use rustc_lint::{EarlyContext, EarlyLintPass};
use rustc_session::{declare_lint_pass, declare_tool_lint};
-use syntax::ast::*;
declare_clippy_lint! {
/// **What it does:** Checks for usage of `option_env!(...).unwrap()` and
impl EarlyLintPass for OptionEnvUnwrap {
fn check_expr(&mut self, cx: &EarlyContext<'_>, expr: &Expr) {
if_chain! {
- if let ExprKind::MethodCall(path_segment, args) = &expr.kind;
+ if let ExprKind::MethodCall(path_segment, args, _) = &expr.kind;
let method_name = path_segment.ident.as_str();
if method_name == "expect" || method_name == "unwrap";
if let ExprKind::Call(caller, _) = &args[0].kind;
OPTION_ENV_UNWRAP,
expr.span,
"this will panic at run-time if the environment variable doesn't exist at compile-time",
+ None,
"consider using the `env!` macro instead"
);
}