---
source: crates/biome_json_parser/tests/spec_test.rs
expression: snapshot
---

## Input

```json
{key: 'value'}
```


## AST

```
JsonRoot {
    bom_token: missing (optional),
    value: JsonBogusValue {
        items: [
            L_CURLY@0..1 "{" [] [],
            JsonBogus {
                items: [
                    JsonBogus {
                        items: [
                            JsonBogus {
                                items: [
                                    IDENT@1..4 "key" [] [],
                                ],
                            },
                            COLON@4..6 ":" [] [Whitespace(" ")],
                        ],
                    },
                    JsonBogusValue {
                        items: [
                            ERROR_TOKEN@6..13 "'value'" [] [],
                        ],
                    },
                ],
            },
            R_CURLY@13..14 "}" [] [],
        ],
    },
    eof_token: EOF@14..14 "" [] [],
}
```

## CST

```
0: JSON_ROOT@0..14
  0: (empty)
  1: JSON_BOGUS_VALUE@0..14
    0: L_CURLY@0..1 "{" [] []
    1: JSON_BOGUS@1..13
      0: JSON_BOGUS@1..6
        0: JSON_BOGUS@1..4
          0: IDENT@1..4 "key" [] []
        1: COLON@4..6 ":" [] [Whitespace(" ")]
      1: JSON_BOGUS_VALUE@6..13
        0: ERROR_TOKEN@6..13 "'value'" [] []
    2: R_CURLY@13..14 "}" [] []
  2: EOF@14..14 "" [] []

```

## Diagnostics

```
object_key_with_single_quotes.json:1:2 parse ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━

  × Property key must be double quoted
  
  > 1 │ {key: 'value'}
      │  ^^^
  
object_key_with_single_quotes.json:1:7 parse ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━

  × JSON standard does not allow single quoted strings
  
  > 1 │ {key: 'value'}
      │       ^^^^^^^
  
  i Use double quotes to escape the string.
  
```