| {"$message_type":"diagnostic","message":"mismatched types","code":{"code":"E0308","explanation":"Expected type did not match the received type. |
| |
| Erroneous code examples: |
| |
| ```compile_fail,E0308 |
| fn plus_one(x: i32) -> i32 { |
| x + 1 |
| } |
| |
| plus_one(\"Not a number\"); |
| // ^^^^^^^^^^^^^^ expected `i32`, found `&str` |
| |
| if \"Not a bool\" { |
| // ^^^^^^^^^^^^ expected `bool`, found `&str` |
| } |
| |
| let x: f32 = \"Not a float\"; |
| // --- ^^^^^^^^^^^^^ expected `f32`, found `&str` |
| // | |
| // expected due to this |
| ``` |
| |
| This error occurs when an expression was used in a place where the compiler |
| expected an expression of a different type. It can occur in several cases, the |
| most common being when calling a function and passing an argument which has a |
| different type than the matching type in the function declaration. |
| "},"level":"error","spans":[{"file_name":"$DIR/flag-json.rs","byte_start":291,"byte_end":293,"line_start":8,"line_end":8,"column_start":17,"column_end":19,"is_primary":true,"text":[{"text":" let _: () = 42;","highlight_start":17,"highlight_end":19}],"label":"expected `()`, found integer","suggested_replacement":null,"suggestion_applicability":null,"expansion":null},{"file_name":"$DIR/flag-json.rs","byte_start":286,"byte_end":288,"line_start":8,"line_end":8,"column_start":12,"column_end":14,"is_primary":false,"text":[{"text":" let _: () = 42;","highlight_start":12,"highlight_end":14}],"label":"expected due to this","suggested_replacement":null,"suggestion_applicability":null,"expansion":null}],"children":[],"rendered":"error[E0308]: mismatched types |
| --> $DIR/flag-json.rs:8:17 |
| | |
| LL | ..._: () = 42; |
| | -- ^^ expected `()`, found integer |
| | | |
| | expected due to this |
| |
| "} |
| {"$message_type":"diagnostic","message":"aborting due to 1 previous error","code":null,"level":"error","spans":[],"children":[],"rendered":"error: aborting due to 1 previous error |
| |
| "} |
| {"$message_type":"diagnostic","message":"For more information about this error, try `rustc --explain E0308`.","code":null,"level":"failure-note","spans":[],"children":[],"rendered":"For more information about this error, try `rustc --explain E0308`. |
| "} |