{ "type": "Script", "span": { "start": 15, "end": 266, "ctxt": 0 }, "body": [ { "type": "TsInterfaceDeclaration", "span": { "start": 15, "end": 101, "ctxt": 0 }, "id": { "type": "Identifier", "span": { "start": 25, "end": 26, "ctxt": 0 }, "value": "I", "optional": false }, "declare": false, "typeParams": { "type": "TsTypeParameterDeclaration", "span": { "start": 26, "end": 32, "ctxt": 0 }, "parameters": [ { "type": "TsTypeParameter", "span": { "start": 27, "end": 28, "ctxt": 0 }, "name": { "type": "Identifier", "span": { "start": 27, "end": 28, "ctxt": 0 }, "value": "T", "optional": false }, "constraint": null, "default": null }, { "type": "TsTypeParameter", "span": { "start": 30, "end": 31, "ctxt": 0 }, "name": { "type": "Identifier", "span": { "start": 30, "end": 31, "ctxt": 0 }, "value": "U", "optional": false }, "constraint": null, "default": null } ] }, "extends": [], "body": { "type": "TsInterfaceBody", "span": { "start": 33, "end": 101, "ctxt": 0 }, "body": [ { "type": "TsPropertySignature", "span": { "start": 39, "end": 63, "ctxt": 0 }, "readonly": false, "key": { "type": "MemberExpression", "span": { "start": 40, "end": 58, "ctxt": 0 }, "object": { "type": "Identifier", "span": { "start": 40, "end": 46, "ctxt": 0 }, "value": "Symbol", "optional": false }, "property": { "type": "Identifier", "span": { "start": 47, "end": 58, "ctxt": 0 }, "value": "unscopables", "optional": false } }, "computed": true, "optional": false, "init": null, "params": [], "typeAnnotation": { "type": "TsTypeAnnotation", "span": { "start": 59, "end": 62, "ctxt": 0 }, "typeAnnotation": { "type": "TsTypeReference", "span": { "start": 61, "end": 62, "ctxt": 0 }, "typeName": { "type": "Identifier", "span": { "start": 61, "end": 62, "ctxt": 0 }, "value": "T", "optional": false }, "typeParams": null } }, "typeParams": null }, { "type": "TsPropertySignature", "span": { "start": 68, "end": 99, "ctxt": 0 }, "readonly": false, "key": { "type": "MemberExpression", "span": { "start": 69, "end": 94, "ctxt": 0 }, "object": { "type": "Identifier", "span": { "start": 69, "end": 75, "ctxt": 0 }, "value": "Symbol", "optional": false }, "property": { "type": "Identifier", "span": { "start": 76, "end": 94, "ctxt": 0 }, "value": "isConcatSpreadable", "optional": false } }, "computed": true, "optional": false, "init": null, "params": [], "typeAnnotation": { "type": "TsTypeAnnotation", "span": { "start": 95, "end": 98, "ctxt": 0 }, "typeAnnotation": { "type": "TsTypeReference", "span": { "start": 97, "end": 98, "ctxt": 0 }, "typeName": { "type": "Identifier", "span": { "start": 97, "end": 98, "ctxt": 0 }, "value": "U", "optional": false }, "typeParams": null } }, "typeParams": null } ] } }, { "type": "FunctionDeclaration", "identifier": { "type": "Identifier", "span": { "start": 120, "end": 123, "ctxt": 0 }, "value": "foo", "optional": false }, "declare": true, "params": [ { "type": "Parameter", "span": { "start": 130, "end": 140, "ctxt": 0 }, "decorators": [], "pat": { "type": "Identifier", "span": { "start": 130, "end": 140, "ctxt": 0 }, "value": "p", "optional": false, "typeAnnotation": { "type": "TsTypeAnnotation", "span": { "start": 131, "end": 140, "ctxt": 0 }, "typeAnnotation": { "type": "TsTypeReference", "span": { "start": 133, "end": 140, "ctxt": 0 }, "typeName": { "type": "Identifier", "span": { "start": 133, "end": 134, "ctxt": 0 }, "value": "I", "optional": false }, "typeParams": { "type": "TsTypeParameterInstantiation", "span": { "start": 134, "end": 140, "ctxt": 0 }, "params": [ { "type": "TsTypeReference", "span": { "start": 135, "end": 136, "ctxt": 0 }, "typeName": { "type": "Identifier", "span": { "start": 135, "end": 136, "ctxt": 0 }, "value": "T", "optional": false }, "typeParams": null }, { "type": "TsTypeReference", "span": { "start": 138, "end": 139, "ctxt": 0 }, "typeName": { "type": "Identifier", "span": { "start": 138, "end": 139, "ctxt": 0 }, "value": "U", "optional": false }, "typeParams": null } ] } } } } } ], "decorators": [], "span": { "start": 103, "end": 158, "ctxt": 0 }, "body": null, "generator": false, "async": false, "typeParameters": { "type": "TsTypeParameterDeclaration", "span": { "start": 123, "end": 129, "ctxt": 0 }, "parameters": [ { "type": "TsTypeParameter", "span": { "start": 124, "end": 125, "ctxt": 0 }, "name": { "type": "Identifier", "span": { "start": 124, "end": 125, "ctxt": 0 }, "value": "T", "optional": false }, "constraint": null, "default": null }, { "type": "TsTypeParameter", "span": { "start": 127, "end": 128, "ctxt": 0 }, "name": { "type": "Identifier", "span": { "start": 127, "end": 128, "ctxt": 0 }, "value": "U", "optional": false }, "constraint": null, "default": null } ] }, "returnType": { "type": "TsTypeAnnotation", "span": { "start": 141, "end": 157, "ctxt": 0 }, "typeAnnotation": { "type": "TsTypeLiteral", "span": { "start": 143, "end": 157, "ctxt": 0 }, "members": [ { "type": "TsPropertySignature", "span": { "start": 145, "end": 150, "ctxt": 0 }, "readonly": false, "key": { "type": "Identifier", "span": { "start": 145, "end": 146, "ctxt": 0 }, "value": "t", "optional": false }, "computed": false, "optional": false, "init": null, "params": [], "typeAnnotation": { "type": "TsTypeAnnotation", "span": { "start": 146, "end": 149, "ctxt": 0 }, "typeAnnotation": { "type": "TsTypeReference", "span": { "start": 148, "end": 149, "ctxt": 0 }, "typeName": { "type": "Identifier", "span": { "start": 148, "end": 149, "ctxt": 0 }, "value": "T", "optional": false }, "typeParams": null } }, "typeParams": null }, { "type": "TsPropertySignature", "span": { "start": 151, "end": 155, "ctxt": 0 }, "readonly": false, "key": { "type": "Identifier", "span": { "start": 151, "end": 152, "ctxt": 0 }, "value": "u", "optional": false }, "computed": false, "optional": false, "init": null, "params": [], "typeAnnotation": { "type": "TsTypeAnnotation", "span": { "start": 152, "end": 155, "ctxt": 0 }, "typeAnnotation": { "type": "TsTypeReference", "span": { "start": 154, "end": 155, "ctxt": 0 }, "typeName": { "type": "Identifier", "span": { "start": 154, "end": 155, "ctxt": 0 }, "value": "U", "optional": false }, "typeParams": null } }, "typeParams": null } ] } } }, { "type": "ExpressionStatement", "span": { "start": 160, "end": 266, "ctxt": 0 }, "expression": { "type": "CallExpression", "span": { "start": 160, "end": 265, "ctxt": 0 }, "callee": { "type": "Identifier", "span": { "start": 160, "end": 163, "ctxt": 0 }, "value": "foo", "optional": false }, "arguments": [ { "spread": null, "expression": { "type": "ObjectExpression", "span": { "start": 164, "end": 264, "ctxt": 0 }, "properties": [ { "type": "KeyValueProperty", "key": { "type": "Computed", "span": { "start": 170, "end": 197, "ctxt": 0 }, "expression": { "type": "MemberExpression", "span": { "start": 171, "end": 196, "ctxt": 0 }, "object": { "type": "Identifier", "span": { "start": 171, "end": 177, "ctxt": 0 }, "value": "Symbol", "optional": false }, "property": { "type": "Identifier", "span": { "start": 178, "end": 196, "ctxt": 0 }, "value": "isConcatSpreadable", "optional": false } } }, "value": { "type": "StringLiteral", "span": { "start": 199, "end": 201, "ctxt": 0 }, "value": "", "raw": "\"\"" } }, { "type": "KeyValueProperty", "key": { "type": "Computed", "span": { "start": 207, "end": 227, "ctxt": 0 }, "expression": { "type": "MemberExpression", "span": { "start": 208, "end": 226, "ctxt": 0 }, "object": { "type": "Identifier", "span": { "start": 208, "end": 214, "ctxt": 0 }, "value": "Symbol", "optional": false }, "property": { "type": "Identifier", "span": { "start": 215, "end": 226, "ctxt": 0 }, "value": "toPrimitive", "optional": false } } }, "value": { "type": "NumericLiteral", "span": { "start": 229, "end": 230, "ctxt": 0 }, "value": 0.0 } }, { "type": "KeyValueProperty", "key": { "type": "Computed", "span": { "start": 236, "end": 256, "ctxt": 0 }, "expression": { "type": "MemberExpression", "span": { "start": 237, "end": 255, "ctxt": 0 }, "object": { "type": "Identifier", "span": { "start": 237, "end": 243, "ctxt": 0 }, "value": "Symbol", "optional": false }, "property": { "type": "Identifier", "span": { "start": 244, "end": 255, "ctxt": 0 }, "value": "unscopables", "optional": false } } }, "value": { "type": "BooleanLiteral", "span": { "start": 258, "end": 262, "ctxt": 0 }, "value": true } } ] } } ], "typeArguments": null } } ], "interpreter": null }