1{ 2 "type": "Program", 3 "statements": [ 4 { 5 "type": "TSInterfaceDeclaration", 6 "body": { 7 "type": "TSInterfaceBody", 8 "body": [ 9 { 10 "type": "TSIndexSignature", 11 "parameters": { 12 "type": "Identifier", 13 "name": "x", 14 "typeAnnotation": { 15 "type": "TSNumberKeyword", 16 "loc": { 17 "start": { 18 "line": 18, 19 "column": 9 20 }, 21 "end": { 22 "line": 18, 23 "column": 15 24 } 25 } 26 }, 27 "decorators": [], 28 "loc": { 29 "start": { 30 "line": 18, 31 "column": 6 32 }, 33 "end": { 34 "line": 18, 35 "column": 7 36 } 37 } 38 }, 39 "typeAnnotation": { 40 "type": "TSNumberKeyword", 41 "loc": { 42 "start": { 43 "line": 18, 44 "column": 18 45 }, 46 "end": { 47 "line": 18, 48 "column": 24 49 } 50 } 51 }, 52 "readonly": false, 53 "loc": { 54 "start": { 55 "line": 18, 56 "column": 5 57 }, 58 "end": { 59 "line": 18, 60 "column": 25 61 } 62 } 63 } 64 ], 65 "loc": { 66 "start": { 67 "line": 17, 68 "column": 13 69 }, 70 "end": { 71 "line": 19, 72 "column": 2 73 } 74 } 75 }, 76 "id": { 77 "type": "Identifier", 78 "name": "A", 79 "decorators": [], 80 "loc": { 81 "start": { 82 "line": 17, 83 "column": 11 84 }, 85 "end": { 86 "line": 17, 87 "column": 12 88 } 89 } 90 }, 91 "extends": [], 92 "loc": { 93 "start": { 94 "line": 17, 95 "column": 1 96 }, 97 "end": { 98 "line": 19, 99 "column": 2 100 } 101 } 102 }, 103 { 104 "type": "TSInterfaceDeclaration", 105 "body": { 106 "type": "TSInterfaceBody", 107 "body": [ 108 { 109 "type": "TSPropertySignature", 110 "computed": false, 111 "optional": false, 112 "readonly": false, 113 "key": { 114 "type": "NumberLiteral", 115 "value": 5, 116 "loc": { 117 "start": { 118 "line": 22, 119 "column": 5 120 }, 121 "end": { 122 "line": 22, 123 "column": 6 124 } 125 } 126 }, 127 "typeAnnotation": { 128 "type": "TSBooleanKeyword", 129 "loc": { 130 "start": { 131 "line": 22, 132 "column": 8 133 }, 134 "end": { 135 "line": 22, 136 "column": 15 137 } 138 } 139 }, 140 "loc": { 141 "start": { 142 "line": 22, 143 "column": 5 144 }, 145 "end": { 146 "line": 22, 147 "column": 16 148 } 149 } 150 } 151 ], 152 "loc": { 153 "start": { 154 "line": 21, 155 "column": 23 156 }, 157 "end": { 158 "line": 23, 159 "column": 2 160 } 161 } 162 }, 163 "id": { 164 "type": "Identifier", 165 "name": "B", 166 "decorators": [], 167 "loc": { 168 "start": { 169 "line": 21, 170 "column": 11 171 }, 172 "end": { 173 "line": 21, 174 "column": 12 175 } 176 } 177 }, 178 "extends": [ 179 { 180 "type": "TSInterfaceHeritage", 181 "expression": { 182 "type": "TSTypeReference", 183 "typeName": { 184 "type": "Identifier", 185 "name": "A", 186 "decorators": [], 187 "loc": { 188 "start": { 189 "line": 21, 190 "column": 21 191 }, 192 "end": { 193 "line": 21, 194 "column": 22 195 } 196 } 197 }, 198 "loc": { 199 "start": { 200 "line": 21, 201 "column": 23 202 }, 203 "end": { 204 "line": 21, 205 "column": 22 206 } 207 } 208 }, 209 "loc": { 210 "start": { 211 "line": 21, 212 "column": 23 213 }, 214 "end": { 215 "line": 21, 216 "column": 22 217 } 218 } 219 } 220 ], 221 "loc": { 222 "start": { 223 "line": 21, 224 "column": 1 225 }, 226 "end": { 227 "line": 23, 228 "column": 2 229 } 230 } 231 } 232 ], 233 "loc": { 234 "start": { 235 "line": 1, 236 "column": 1 237 }, 238 "end": { 239 "line": 23, 240 "column": 2 241 } 242 } 243} 244TypeError: Property '5' of type 'boolean' is not assignable to numeric index type 'number'. [interfaceInheritance3.ts:22:5] 245