---
source: crates/rolldown_testing/src/integration_test.rs
---
# Errors
## PARSE_ERROR
```text
[PARSE_ERROR] Identifier `x` has already been declared
╭─[ function2.js:1:10 ]
│
1 │ function x() { return 1 }
│ ┬
│ ╰── `x` has already been declared here
│
3 │ function x() { return 2 }
│ ┬
│ ╰── It can not be redeclared here
───╯
```
## PARSE_ERROR
```text
[PARSE_ERROR] Identifier `x` has already been declared
╭─[ function3.js:1:10 ]
│
1 │ function x() { return 1 }
│ ┬
│ ╰── `x` has already been declared here
│
3 │ function x() { return 2 }
│ ┬
│ ╰── It can not be redeclared here
───╯
```
## PARSE_ERROR
```text
[PARSE_ERROR] Identifier `x` has already been declared
╭─[ function3.js:3:10 ]
│
3 │ function x() { return 2 }
│ ┬
│ ╰── `x` has already been declared here
│
5 │ function x() { return 3 }
│ ┬
│ ╰── It can not be redeclared here
───╯
```