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correct unused-parens lint suggestion to strip exact pair
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// Copyright 2017 The Rust Project Developers. See the COPYRIGHT | ||
// file at the top-level directory of this distribution and at | ||
// http://rust-lang.org/COPYRIGHT. | ||
// | ||
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or | ||
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license | ||
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your | ||
// option. This file may not be copied, modified, or distributed | ||
// except according to those terms. | ||
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// compile-flags: --error-format json | ||
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// ignore-windows (see Issue #44968) | ||
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// The output for humans should just highlight the whole span without showing | ||
// the suggested replacement, but we also want to test that suggested | ||
// replacement only removes one set of parentheses, rather than naïvely | ||
// stripping away any starting or ending parenthesis characters—hence this | ||
// test of the JSON error format. | ||
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fn main() { | ||
// We want to suggest the properly-balanced expression `1 / (2 + 3)`, not | ||
// the malformed `1 / (2 + 3` | ||
let _a = (1 / (2 + 3)); | ||
} |
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{"message":"unnecessary parentheses around assigned value","code":null,"level":"warning","spans":[{"file_name":"$DIR/unused_parens_json_suggestion.rs","byte_start":1014,"byte_end":1027,"line_start":24,"line_end":24,"column_start":14,"column_end":27,"is_primary":true,"text":[{"text":" let _a = (1 / (2 + 3));","highlight_start":14,"highlight_end":27}],"label":null,"suggested_replacement":null,"expansion":null}],"children":[{"message":"#[warn(unused_parens)] on by default","code":null,"level":"note","spans":[],"children":[],"rendered":null},{"message":"remove these parentheses","code":null,"level":"help","spans":[{"file_name":"$DIR/unused_parens_json_suggestion.rs","byte_start":1014,"byte_end":1027,"line_start":24,"line_end":24,"column_start":14,"column_end":27,"is_primary":true,"text":[{"text":" let _a = (1 / (2 + 3));","highlight_start":14,"highlight_end":27}],"label":null,"suggested_replacement":"1 / (2 + 3)","expansion":null}],"children":[],"rendered":" let _a = 1 / (2 + 3);"}],"rendered":null} |