{ "type": "Script", "span": { "start": 0, "end": 382, "ctxt": 0 }, "body": [ { "type": "ClassDeclaration", "identifier": { "type": "Identifier", "span": { "start": 6, "end": 10, "ctxt": 0 }, "value": "Base", "optional": false }, "declare": false, "span": { "start": 0, "end": 68, "ctxt": 0 }, "decorators": [], "body": [ { "type": "ClassProperty", "span": { "start": 17, "end": 23, "ctxt": 0 }, "key": { "type": "Identifier", "span": { "start": 17, "end": 18, "ctxt": 0 }, "value": "a", "optional": false }, "value": { "type": "NumericLiteral", "span": { "start": 21, "end": 22, "ctxt": 0 }, "value": 1.0 }, "typeAnnotation": null, "isStatic": false, "decorators": [], "accessibility": null, "isAbstract": false, "isOptional": false, "isOverride": false, "readonly": false, "declare": false, "definite": false }, { "type": "Constructor", "span": { "start": 28, "end": 66, "ctxt": 0 }, "key": { "type": "Identifier", "span": { "start": 28, "end": 39, "ctxt": 0 }, "value": "constructor", "optional": false }, "params": [ { "type": "Parameter", "span": { "start": 40, "end": 49, "ctxt": 0 }, "decorators": [], "pat": { "type": "Identifier", "span": { "start": 40, "end": 49, "ctxt": 0 }, "value": "x", "optional": false, "typeAnnotation": { "type": "TsTypeAnnotation", "span": { "start": 41, "end": 49, "ctxt": 0 }, "typeAnnotation": { "type": "TsKeywordType", "span": { "start": 43, "end": 49, "ctxt": 0 }, "kind": "number" } } } } ], "body": { "type": "BlockStatement", "span": { "start": 51, "end": 66, "ctxt": 0 }, "stmts": [ { "type": "ExpressionStatement", "span": { "start": 53, "end": 64, "ctxt": 0 }, "expression": { "type": "AssignmentExpression", "span": { "start": 53, "end": 63, "ctxt": 0 }, "operator": "=", "left": { "type": "MemberExpression", "span": { "start": 53, "end": 59, "ctxt": 0 }, "object": { "type": "ThisExpression", "span": { "start": 53, "end": 57, "ctxt": 0 } }, "property": { "type": "Identifier", "span": { "start": 58, "end": 59, "ctxt": 0 }, "value": "a", "optional": false } }, "right": { "type": "Identifier", "span": { "start": 62, "end": 63, "ctxt": 0 }, "value": "x", "optional": false } } } ] }, "accessibility": null, "isOptional": false } ], "superClass": null, "isAbstract": false, "typeParams": null, "superTypeParams": null, "implements": [] }, { "type": "ClassDeclaration", "identifier": { "type": "Identifier", "span": { "start": 76, "end": 83, "ctxt": 0 }, "value": "Derived", "optional": false }, "declare": false, "span": { "start": 70, "end": 127, "ctxt": 0 }, "decorators": [], "body": [ { "type": "ClassProperty", "span": { "start": 103, "end": 108, "ctxt": 0 }, "key": { "type": "Identifier", "span": { "start": 103, "end": 104, "ctxt": 0 }, "value": "x", "optional": false }, "value": { "type": "NumericLiteral", "span": { "start": 107, "end": 108, "ctxt": 0 }, "value": 1.0 }, "typeAnnotation": null, "isStatic": false, "decorators": [], "accessibility": null, "isAbstract": false, "isOptional": false, "isOverride": false, "readonly": false, "declare": false, "definite": false }, { "type": "ClassProperty", "span": { "start": 113, "end": 125, "ctxt": 0 }, "key": { "type": "Identifier", "span": { "start": 113, "end": 114, "ctxt": 0 }, "value": "y", "optional": false }, "value": { "type": "StringLiteral", "span": { "start": 117, "end": 124, "ctxt": 0 }, "value": "hello", "raw": "'hello'" }, "typeAnnotation": null, "isStatic": false, "decorators": [], "accessibility": null, "isAbstract": false, "isOptional": false, "isOverride": false, "readonly": false, "declare": false, "definite": false } ], "superClass": { "type": "Identifier", "span": { "start": 92, "end": 96, "ctxt": 0 }, "value": "Base", "optional": false }, "isAbstract": false, "typeParams": null, "superTypeParams": null, "implements": [] }, { "type": "VariableDeclaration", "span": { "start": 129, "end": 151, "ctxt": 0 }, "kind": "var", "declare": false, "declarations": [ { "type": "VariableDeclarator", "span": { "start": 133, "end": 150, "ctxt": 0 }, "id": { "type": "Identifier", "span": { "start": 133, "end": 134, "ctxt": 0 }, "value": "r", "optional": false, "typeAnnotation": null }, "init": { "type": "NewExpression", "span": { "start": 137, "end": 150, "ctxt": 0 }, "callee": { "type": "Identifier", "span": { "start": 141, "end": 148, "ctxt": 0 }, "value": "Derived", "optional": false }, "arguments": [], "typeArguments": null }, "definite": false } ] }, { "type": "VariableDeclaration", "span": { "start": 161, "end": 185, "ctxt": 0 }, "kind": "var", "declare": false, "declarations": [ { "type": "VariableDeclarator", "span": { "start": 165, "end": 184, "ctxt": 0 }, "id": { "type": "Identifier", "span": { "start": 165, "end": 167, "ctxt": 0 }, "value": "r2", "optional": false, "typeAnnotation": null }, "init": { "type": "NewExpression", "span": { "start": 170, "end": 184, "ctxt": 0 }, "callee": { "type": "Identifier", "span": { "start": 174, "end": 181, "ctxt": 0 }, "value": "Derived", "optional": false }, "arguments": [ { "spread": null, "expression": { "type": "NumericLiteral", "span": { "start": 182, "end": 183, "ctxt": 0 }, "value": 1.0 } } ], "typeArguments": null }, "definite": false } ] }, { "type": "ClassDeclaration", "identifier": { "type": "Identifier", "span": { "start": 194, "end": 199, "ctxt": 0 }, "value": "Base2", "optional": false }, "declare": false, "span": { "start": 188, "end": 254, "ctxt": 0 }, "decorators": [], "body": [ { "type": "ClassProperty", "span": { "start": 209, "end": 214, "ctxt": 0 }, "key": { "type": "Identifier", "span": { "start": 209, "end": 210, "ctxt": 0 }, "value": "a", "optional": false }, "value": null, "typeAnnotation": { "type": "TsTypeAnnotation", "span": { "start": 210, "end": 213, "ctxt": 0 }, "typeAnnotation": { "type": "TsTypeReference", "span": { "start": 212, "end": 213, "ctxt": 0 }, "typeName": { "type": "Identifier", "span": { "start": 212, "end": 213, "ctxt": 0 }, "value": "T", "optional": false }, "typeParams": null } }, "isStatic": false, "decorators": [], "accessibility": null, "isAbstract": false, "isOptional": false, "isOverride": false, "readonly": false, "declare": false, "definite": false }, { "type": "Constructor", "span": { "start": 219, "end": 252, "ctxt": 0 }, "key": { "type": "Identifier", "span": { "start": 219, "end": 230, "ctxt": 0 }, "value": "constructor", "optional": false }, "params": [ { "type": "Parameter", "span": { "start": 231, "end": 235, "ctxt": 0 }, "decorators": [], "pat": { "type": "Identifier", "span": { "start": 231, "end": 235, "ctxt": 0 }, "value": "x", "optional": false, "typeAnnotation": { "type": "TsTypeAnnotation", "span": { "start": 232, "end": 235, "ctxt": 0 }, "typeAnnotation": { "type": "TsTypeReference", "span": { "start": 234, "end": 235, "ctxt": 0 }, "typeName": { "type": "Identifier", "span": { "start": 234, "end": 235, "ctxt": 0 }, "value": "T", "optional": false }, "typeParams": null } } } } ], "body": { "type": "BlockStatement", "span": { "start": 237, "end": 252, "ctxt": 0 }, "stmts": [ { "type": "ExpressionStatement", "span": { "start": 239, "end": 250, "ctxt": 0 }, "expression": { "type": "AssignmentExpression", "span": { "start": 239, "end": 249, "ctxt": 0 }, "operator": "=", "left": { "type": "MemberExpression", "span": { "start": 239, "end": 245, "ctxt": 0 }, "object": { "type": "ThisExpression", "span": { "start": 239, "end": 243, "ctxt": 0 } }, "property": { "type": "Identifier", "span": { "start": 244, "end": 245, "ctxt": 0 }, "value": "a", "optional": false } }, "right": { "type": "Identifier", "span": { "start": 248, "end": 249, "ctxt": 0 }, "value": "x", "optional": false } } } ] }, "accessibility": null, "isOptional": false } ], "superClass": null, "isAbstract": false, "typeParams": { "type": "TsTypeParameterDeclaration", "span": { "start": 199, "end": 202, "ctxt": 0 }, "parameters": [ { "type": "TsTypeParameter", "span": { "start": 200, "end": 201, "ctxt": 0 }, "name": { "type": "Identifier", "span": { "start": 200, "end": 201, "ctxt": 0 }, "value": "T", "optional": false }, "constraint": null, "default": null } ] }, "superTypeParams": null, "implements": [] }, { "type": "ClassDeclaration", "identifier": { "type": "Identifier", "span": { "start": 262, "end": 263, "ctxt": 0 }, "value": "D", "optional": false }, "declare": false, "span": { "start": 256, "end": 327, "ctxt": 0 }, "decorators": [], "body": [ { "type": "ClassProperty", "span": { "start": 303, "end": 308, "ctxt": 0 }, "key": { "type": "Identifier", "span": { "start": 303, "end": 304, "ctxt": 0 }, "value": "x", "optional": false }, "value": { "type": "NumericLiteral", "span": { "start": 307, "end": 308, "ctxt": 0 }, "value": 2.0 }, "typeAnnotation": null, "isStatic": false, "decorators": [], "accessibility": null, "isAbstract": false, "isOptional": false, "isOverride": false, "readonly": false, "declare": false, "definite": false }, { "type": "ClassProperty", "span": { "start": 313, "end": 325, "ctxt": 0 }, "key": { "type": "Identifier", "span": { "start": 313, "end": 314, "ctxt": 0 }, "value": "y", "optional": false }, "value": { "type": "NullLiteral", "span": { "start": 320, "end": 324, "ctxt": 0 } }, "typeAnnotation": { "type": "TsTypeAnnotation", "span": { "start": 314, "end": 317, "ctxt": 0 }, "typeAnnotation": { "type": "TsTypeReference", "span": { "start": 316, "end": 317, "ctxt": 0 }, "typeName": { "type": "Identifier", "span": { "start": 316, "end": 317, "ctxt": 0 }, "value": "T", "optional": false }, "typeParams": null } }, "isStatic": false, "decorators": [], "accessibility": null, "isAbstract": false, "isOptional": false, "isOverride": false, "readonly": false, "declare": false, "definite": false } ], "superClass": { "type": "Identifier", "span": { "start": 288, "end": 293, "ctxt": 0 }, "value": "Base2", "optional": false }, "isAbstract": false, "typeParams": { "type": "TsTypeParameterDeclaration", "span": { "start": 263, "end": 279, "ctxt": 0 }, "parameters": [ { "type": "TsTypeParameter", "span": { "start": 264, "end": 278, "ctxt": 0 }, "name": { "type": "Identifier", "span": { "start": 264, "end": 265, "ctxt": 0 }, "value": "T", "optional": false }, "constraint": { "type": "TsTypeReference", "span": { "start": 274, "end": 278, "ctxt": 0 }, "typeName": { "type": "Identifier", "span": { "start": 274, "end": 278, "ctxt": 0 }, "value": "Date", "optional": false }, "typeParams": null }, "default": null } ] }, "superTypeParams": { "type": "TsTypeParameterInstantiation", "span": { "start": 293, "end": 296, "ctxt": 0 }, "params": [ { "type": "TsTypeReference", "span": { "start": 294, "end": 295, "ctxt": 0 }, "typeName": { "type": "Identifier", "span": { "start": 294, "end": 295, "ctxt": 0 }, "value": "T", "optional": false }, "typeParams": null } ] }, "implements": [] }, { "type": "VariableDeclaration", "span": { "start": 329, "end": 345, "ctxt": 0 }, "kind": "var", "declare": false, "declarations": [ { "type": "VariableDeclarator", "span": { "start": 333, "end": 344, "ctxt": 0 }, "id": { "type": "Identifier", "span": { "start": 333, "end": 334, "ctxt": 0 }, "value": "d", "optional": false, "typeAnnotation": null }, "init": { "type": "NewExpression", "span": { "start": 337, "end": 344, "ctxt": 0 }, "callee": { "type": "Identifier", "span": { "start": 341, "end": 342, "ctxt": 0 }, "value": "D", "optional": false }, "arguments": [], "typeArguments": null }, "definite": false } ] }, { "type": "VariableDeclaration", "span": { "start": 355, "end": 382, "ctxt": 0 }, "kind": "var", "declare": false, "declarations": [ { "type": "VariableDeclarator", "span": { "start": 359, "end": 381, "ctxt": 0 }, "id": { "type": "Identifier", "span": { "start": 359, "end": 361, "ctxt": 0 }, "value": "d2", "optional": false, "typeAnnotation": null }, "init": { "type": "NewExpression", "span": { "start": 364, "end": 381, "ctxt": 0 }, "callee": { "type": "Identifier", "span": { "start": 368, "end": 369, "ctxt": 0 }, "value": "D", "optional": false }, "arguments": [ { "spread": null, "expression": { "type": "NewExpression", "span": { "start": 370, "end": 380, "ctxt": 0 }, "callee": { "type": "Identifier", "span": { "start": 374, "end": 378, "ctxt": 0 }, "value": "Date", "optional": false }, "arguments": [], "typeArguments": null } } ], "typeArguments": null }, "definite": false } ] } ], "interpreter": null }