swc/crates/swc_ecma_parser/tests/tsc/variance.json

{
  "type": "Script",
  "span": {
    "start": 111,
    "end": 503,
    "ctxt": 0
  },
  "body": [
    {
      "type": "TsInterfaceDeclaration",
      "span": {
        "start": 111,
        "end": 173,
        "ctxt": 0
      },
      "id": {
        "type": "Identifier",
        "span": {
          "start": 121,
          "end": 124,
          "ctxt": 0
        },
        "value": "Foo",
        "optional": false
      },
      "declare": false,
      "typeParams": {
        "type": "TsTypeParameterDeclaration",
        "span": {
          "start": 124,
          "end": 127,
          "ctxt": 0
        },
        "parameters": [
          {
            "type": "TsTypeParameter",
            "span": {
              "start": 125,
              "end": 126,
              "ctxt": 0
            },
            "name": {
              "type": "Identifier",
              "span": {
                "start": 125,
                "end": 126,
                "ctxt": 0
              },
              "value": "T",
              "optional": false
            },
            "in": false,
            "out": false,
            "const": false,
            "constraint": null,
            "default": null
          }
        ]
      },
      "extends": [],
      "body": {
        "type": "TsInterfaceBody",
        "span": {
          "start": 128,
          "end": 173,
          "ctxt": 0
        },
        "body": [
          {
            "type": "TsPropertySignature",
            "span": {
              "start": 132,
              "end": 171,
              "ctxt": 0
            },
            "readonly": false,
            "key": {
              "type": "Identifier",
              "span": {
                "start": 132,
                "end": 136,
                "ctxt": 0
              },
              "value": "prop",
              "optional": false
            },
            "computed": false,
            "optional": false,
            "init": null,
            "params": [],
            "typeAnnotation": {
              "type": "TsTypeAnnotation",
              "span": {
                "start": 136,
                "end": 170,
                "ctxt": 0
              },
              "typeAnnotation": {
                "type": "TsConditionalType",
                "span": {
                  "start": 138,
                  "end": 170,
                  "ctxt": 0
                },
                "checkType": {
                  "type": "TsTypeReference",
                  "span": {
                    "start": 138,
                    "end": 139,
                    "ctxt": 0
                  },
                  "typeName": {
                    "type": "Identifier",
                    "span": {
                      "start": 138,
                      "end": 139,
                      "ctxt": 0
                    },
                    "value": "T",
                    "optional": false
                  },
                  "typeParams": null
                },
                "extendsType": {
                  "type": "TsKeywordType",
                  "span": {
                    "start": 148,
                    "end": 155,
                    "ctxt": 0
                  },
                  "kind": "unknown"
                },
                "trueType": {
                  "type": "TsLiteralType",
                  "span": {
                    "start": 158,
                    "end": 162,
                    "ctxt": 0
                  },
                  "literal": {
                    "type": "BooleanLiteral",
                    "span": {
                      "start": 158,
                      "end": 162,
                      "ctxt": 0
                    },
                    "value": true
                  }
                },
                "falseType": {
                  "type": "TsLiteralType",
                  "span": {
                    "start": 165,
                    "end": 170,
                    "ctxt": 0
                  },
                  "literal": {
                    "type": "BooleanLiteral",
                    "span": {
                      "start": 165,
                      "end": 170,
                      "ctxt": 0
                    },
                    "value": false
                  }
                }
              }
            },
            "typeParams": null
          }
        ]
      }
    },
    {
      "type": "VariableDeclaration",
      "span": {
        "start": 175,
        "end": 211,
        "ctxt": 0
      },
      "kind": "const",
      "declare": false,
      "declarations": [
        {
          "type": "VariableDeclarator",
          "span": {
            "start": 181,
            "end": 210,
            "ctxt": 0
          },
          "id": {
            "type": "Identifier",
            "span": {
              "start": 181,
              "end": 184,
              "ctxt": 0
            },
            "value": "foo",
            "optional": false,
            "typeAnnotation": null
          },
          "init": {
            "type": "TsConstAssertion",
            "span": {
              "start": 187,
              "end": 210,
              "ctxt": 0
            },
            "expression": {
              "type": "ObjectExpression",
              "span": {
                "start": 187,
                "end": 201,
                "ctxt": 0
              },
              "properties": [
                {
                  "type": "KeyValueProperty",
                  "key": {
                    "type": "Identifier",
                    "span": {
                      "start": 189,
                      "end": 193,
                      "ctxt": 0
                    },
                    "value": "prop",
                    "optional": false
                  },
                  "value": {
                    "type": "BooleanLiteral",
                    "span": {
                      "start": 195,
                      "end": 199,
                      "ctxt": 0
                    },
                    "value": true
                  }
                }
              ]
            }
          },
          "definite": false
        }
      ]
    },
    {
      "type": "VariableDeclaration",
      "span": {
        "start": 212,
        "end": 234,
        "ctxt": 0
      },
      "kind": "const",
      "declare": false,
      "declarations": [
        {
          "type": "VariableDeclarator",
          "span": {
            "start": 218,
            "end": 233,
            "ctxt": 0
          },
          "id": {
            "type": "Identifier",
            "span": {
              "start": 218,
              "end": 219,
              "ctxt": 0
            },
            "value": "x",
            "optional": false,
            "typeAnnotation": {
              "type": "TsTypeAnnotation",
              "span": {
                "start": 219,
                "end": 227,
                "ctxt": 0
              },
              "typeAnnotation": {
                "type": "TsTypeReference",
                "span": {
                  "start": 221,
                  "end": 227,
                  "ctxt": 0
                },
                "typeName": {
                  "type": "Identifier",
                  "span": {
                    "start": 221,
                    "end": 224,
                    "ctxt": 0
                  },
                  "value": "Foo",
                  "optional": false
                },
                "typeParams": {
                  "type": "TsTypeParameterInstantiation",
                  "span": {
                    "start": 224,
                    "end": 227,
                    "ctxt": 0
                  },
                  "params": [
                    {
                      "type": "TsLiteralType",
                      "span": {
                        "start": 225,
                        "end": 226,
                        "ctxt": 0
                      },
                      "literal": {
                        "type": "NumericLiteral",
                        "span": {
                          "start": 225,
                          "end": 226,
                          "ctxt": 0
                        },
                        "value": 1.0,
                        "raw": "1"
                      }
                    }
                  ]
                }
              }
            }
          },
          "init": {
            "type": "Identifier",
            "span": {
              "start": 230,
              "end": 233,
              "ctxt": 0
            },
            "value": "foo",
            "optional": false
          },
          "definite": false
        }
      ]
    },
    {
      "type": "VariableDeclaration",
      "span": {
        "start": 235,
        "end": 262,
        "ctxt": 0
      },
      "kind": "const",
      "declare": false,
      "declarations": [
        {
          "type": "VariableDeclarator",
          "span": {
            "start": 241,
            "end": 261,
            "ctxt": 0
          },
          "id": {
            "type": "Identifier",
            "span": {
              "start": 241,
              "end": 242,
              "ctxt": 0
            },
            "value": "y",
            "optional": false,
            "typeAnnotation": {
              "type": "TsTypeAnnotation",
              "span": {
                "start": 242,
                "end": 255,
                "ctxt": 0
              },
              "typeAnnotation": {
                "type": "TsTypeReference",
                "span": {
                  "start": 244,
                  "end": 255,
                  "ctxt": 0
                },
                "typeName": {
                  "type": "Identifier",
                  "span": {
                    "start": 244,
                    "end": 247,
                    "ctxt": 0
                  },
                  "value": "Foo",
                  "optional": false
                },
                "typeParams": {
                  "type": "TsTypeParameterInstantiation",
                  "span": {
                    "start": 247,
                    "end": 255,
                    "ctxt": 0
                  },
                  "params": [
                    {
                      "type": "TsKeywordType",
                      "span": {
                        "start": 248,
                        "end": 254,
                        "ctxt": 0
                      },
                      "kind": "number"
                    }
                  ]
                }
              }
            }
          },
          "init": {
            "type": "Identifier",
            "span": {
              "start": 258,
              "end": 261,
              "ctxt": 0
            },
            "value": "foo",
            "optional": false
          },
          "definite": false
        }
      ]
    },
    {
      "type": "VariableDeclaration",
      "span": {
        "start": 263,
        "end": 288,
        "ctxt": 0
      },
      "kind": "const",
      "declare": false,
      "declarations": [
        {
          "type": "VariableDeclarator",
          "span": {
            "start": 269,
            "end": 287,
            "ctxt": 0
          },
          "id": {
            "type": "Identifier",
            "span": {
              "start": 269,
              "end": 270,
              "ctxt": 0
            },
            "value": "z",
            "optional": false,
            "typeAnnotation": {
              "type": "TsTypeAnnotation",
              "span": {
                "start": 270,
                "end": 283,
                "ctxt": 0
              },
              "typeAnnotation": {
                "type": "TsTypeReference",
                "span": {
                  "start": 272,
                  "end": 283,
                  "ctxt": 0
                },
                "typeName": {
                  "type": "Identifier",
                  "span": {
                    "start": 272,
                    "end": 275,
                    "ctxt": 0
                  },
                  "value": "Foo",
                  "optional": false
                },
                "typeParams": {
                  "type": "TsTypeParameterInstantiation",
                  "span": {
                    "start": 275,
                    "end": 283,
                    "ctxt": 0
                  },
                  "params": [
                    {
                      "type": "TsKeywordType",
                      "span": {
                        "start": 276,
                        "end": 282,
                        "ctxt": 0
                      },
                      "kind": "number"
                    }
                  ]
                }
              }
            }
          },
          "init": {
            "type": "Identifier",
            "span": {
              "start": 286,
              "end": 287,
              "ctxt": 0
            },
            "value": "x",
            "optional": false
          },
          "definite": false
        }
      ]
    },
    {
      "type": "ClassDeclaration",
      "identifier": {
        "type": "Identifier",
        "span": {
          "start": 319,
          "end": 322,
          "ctxt": 0
        },
        "value": "Bar",
        "optional": false
      },
      "declare": false,
      "span": {
        "start": 313,
        "end": 503,
        "ctxt": 0
      },
      "decorators": [],
      "body": [
        {
          "type": "ClassProperty",
          "span": {
            "start": 345,
            "end": 389,
            "ctxt": 0
          },
          "key": {
            "type": "Identifier",
            "span": {
              "start": 360,
              "end": 368,
              "ctxt": 0
            },
            "value": "instance",
            "optional": false
          },
          "value": {
            "type": "ArrayExpression",
            "span": {
              "start": 386,
              "end": 388,
              "ctxt": 0
            },
            "elements": []
          },
          "typeAnnotation": {
            "type": "TsTypeAnnotation",
            "span": {
              "start": 368,
              "end": 383,
              "ctxt": 0
            },
            "typeAnnotation": {
              "type": "TsArrayType",
              "span": {
                "start": 370,
                "end": 383,
                "ctxt": 0
              },
              "elemType": {
                "type": "TsTypeReference",
                "span": {
                  "start": 370,
                  "end": 381,
                  "ctxt": 0
                },
                "typeName": {
                  "type": "Identifier",
                  "span": {
                    "start": 370,
                    "end": 373,
                    "ctxt": 0
                  },
                  "value": "Bar",
                  "optional": false
                },
                "typeParams": {
                  "type": "TsTypeParameterInstantiation",
                  "span": {
                    "start": 373,
                    "end": 381,
                    "ctxt": 0
                  },
                  "params": [
                    {
                      "type": "TsKeywordType",
                      "span": {
                        "start": 374,
                        "end": 380,
                        "ctxt": 0
                      },
                      "kind": "string"
                    }
                  ]
                }
              }
            }
          },
          "isStatic": true,
          "decorators": [],
          "accessibility": "private",
          "isAbstract": false,
          "isOptional": false,
          "isOverride": false,
          "readonly": false,
          "declare": false,
          "definite": false
        },
        {
          "type": "ClassMethod",
          "span": {
            "start": 393,
            "end": 450,
            "ctxt": 0
          },
          "key": {
            "type": "Identifier",
            "span": {
              "start": 393,
              "end": 397,
              "ctxt": 0
            },
            "value": "cast",
            "optional": false
          },
          "function": {
            "params": [
              {
                "type": "Parameter",
                "span": {
                  "start": 398,
                  "end": 445,
                  "ctxt": 0
                },
                "decorators": [],
                "pat": {
                  "type": "Identifier",
                  "span": {
                    "start": 398,
                    "end": 445,
                    "ctxt": 0
                  },
                  "value": "_name",
                  "optional": false,
                  "typeAnnotation": {
                    "type": "TsTypeAnnotation",
                    "span": {
                      "start": 403,
                      "end": 445,
                      "ctxt": 0
                    },
                    "typeAnnotation": {
                      "type": "TsParenthesizedType",
                      "span": {
                        "start": 405,
                        "end": 445,
                        "ctxt": 0
                      },
                      "typeAnnotation": {
                        "type": "TsConditionalType",
                        "span": {
                          "start": 406,
                          "end": 444,
                          "ctxt": 0
                        },
                        "checkType": {
                          "type": "TsTupleType",
                          "span": {
                            "start": 406,
                            "end": 409,
                            "ctxt": 0
                          },
                          "elemTypes": [
                            {
                              "type": "TsTupleElement",
                              "span": {
                                "start": 407,
                                "end": 408,
                                "ctxt": 0
                              },
                              "label": null,
                              "ty": {
                                "type": "TsTypeReference",
                                "span": {
                                  "start": 407,
                                  "end": 408,
                                  "ctxt": 0
                                },
                                "typeName": {
                                  "type": "Identifier",
                                  "span": {
                                    "start": 407,
                                    "end": 408,
                                    "ctxt": 0
                                  },
                                  "value": "T",
                                  "optional": false
                                },
                                "typeParams": null
                              }
                            }
                          ]
                        },
                        "extendsType": {
                          "type": "TsTupleType",
                          "span": {
                            "start": 418,
                            "end": 426,
                            "ctxt": 0
                          },
                          "elemTypes": [
                            {
                              "type": "TsTupleElement",
                              "span": {
                                "start": 419,
                                "end": 425,
                                "ctxt": 0
                              },
                              "label": null,
                              "ty": {
                                "type": "TsKeywordType",
                                "span": {
                                  "start": 419,
                                  "end": 425,
                                  "ctxt": 0
                                },
                                "kind": "string"
                              }
                            }
                          ]
                        },
                        "trueType": {
                          "type": "TsKeywordType",
                          "span": {
                            "start": 429,
                            "end": 435,
                            "ctxt": 0
                          },
                          "kind": "string"
                        },
                        "falseType": {
                          "type": "TsKeywordType",
                          "span": {
                            "start": 438,
                            "end": 444,
                            "ctxt": 0
                          },
                          "kind": "string"
                        }
                      }
                    }
                  }
                }
              }
            ],
            "decorators": [],
            "span": {
              "start": 393,
              "end": 450,
              "ctxt": 0
            },
            "body": {
              "type": "BlockStatement",
              "span": {
                "start": 447,
                "end": 450,
                "ctxt": 0
              },
              "stmts": []
            },
            "generator": false,
            "async": false,
            "typeParameters": null,
            "returnType": null
          },
          "kind": "method",
          "isStatic": false,
          "accessibility": null,
          "isAbstract": false,
          "isOptional": false,
          "isOverride": false
        },
        {
          "type": "ClassMethod",
          "span": {
            "start": 456,
            "end": 501,
            "ctxt": 0
          },
          "key": {
            "type": "Identifier",
            "span": {
              "start": 456,
              "end": 464,
              "ctxt": 0
            },
            "value": "pushThis",
            "optional": false
          },
          "function": {
            "params": [],
            "decorators": [],
            "span": {
              "start": 456,
              "end": 501,
              "ctxt": 0
            },
            "body": {
              "type": "BlockStatement",
              "span": {
                "start": 467,
                "end": 501,
                "ctxt": 0
              },
              "stmts": [
                {
                  "type": "ExpressionStatement",
                  "span": {
                    "start": 473,
                    "end": 497,
                    "ctxt": 0
                  },
                  "expression": {
                    "type": "CallExpression",
                    "span": {
                      "start": 473,
                      "end": 496,
                      "ctxt": 0
                    },
                    "callee": {
                      "type": "MemberExpression",
                      "span": {
                        "start": 473,
                        "end": 490,
                        "ctxt": 0
                      },
                      "object": {
                        "type": "MemberExpression",
                        "span": {
                          "start": 473,
                          "end": 485,
                          "ctxt": 0
                        },
                        "object": {
                          "type": "Identifier",
                          "span": {
                            "start": 473,
                            "end": 476,
                            "ctxt": 0
                          },
                          "value": "Bar",
                          "optional": false
                        },
                        "property": {
                          "type": "Identifier",
                          "span": {
                            "start": 477,
                            "end": 485,
                            "ctxt": 0
                          },
                          "value": "instance",
                          "optional": false
                        }
                      },
                      "property": {
                        "type": "Identifier",
                        "span": {
                          "start": 486,
                          "end": 490,
                          "ctxt": 0
                        },
                        "value": "push",
                        "optional": false
                      }
                    },
                    "arguments": [
                      {
                        "spread": null,
                        "expression": {
                          "type": "ThisExpression",
                          "span": {
                            "start": 491,
                            "end": 495,
                            "ctxt": 0
                          }
                        }
                      }
                    ],
                    "typeArguments": null
                  }
                }
              ]
            },
            "generator": false,
            "async": false,
            "typeParameters": null,
            "returnType": null
          },
          "kind": "method",
          "isStatic": false,
          "accessibility": null,
          "isAbstract": false,
          "isOptional": false,
          "isOverride": false
        }
      ],
      "superClass": null,
      "isAbstract": false,
      "typeParams": {
        "type": "TsTypeParameterDeclaration",
        "span": {
          "start": 322,
          "end": 340,
          "ctxt": 0
        },
        "parameters": [
          {
            "type": "TsTypeParameter",
            "span": {
              "start": 323,
              "end": 339,
              "ctxt": 0
            },
            "name": {
              "type": "Identifier",
              "span": {
                "start": 323,
                "end": 324,
                "ctxt": 0
              },
              "value": "T",
              "optional": false
            },
            "in": false,
            "out": false,
            "const": false,
            "constraint": {
              "type": "TsKeywordType",
              "span": {
                "start": 333,
                "end": 339,
                "ctxt": 0
              },
              "kind": "string"
            },
            "default": null
          }
        ]
      },
      "superTypeParams": null,
      "implements": []
    }
  ],
  "interpreter": null
}