Updated the files.

my-app/node_modules/ajv/lib/vocabularies/validation/uniqueItems.ts

@@ -0,0 +1,79 @@
+import type {CodeKeywordDefinition, ErrorObject, KeywordErrorDefinition} from "../../types"
+import type {KeywordCxt} from "../../compile/validate"
+import {checkDataTypes, getSchemaTypes, DataType} from "../../compile/validate/dataType"
+import {_, str, Name} from "../../compile/codegen"
+import {useFunc} from "../../compile/util"
+import equal from "../../runtime/equal"
+
+export type UniqueItemsError = ErrorObject<
+  "uniqueItems",
+  {i: number; j: number},
+  boolean | {$data: string}
+>
+
+const error: KeywordErrorDefinition = {
+  message: ({params: {i, j}}) =>
+    str`must NOT have duplicate items (items ## ${j} and ${i} are identical)`,
+  params: ({params: {i, j}}) => _`{i: ${i}, j: ${j}}`,
+}
+
+const def: CodeKeywordDefinition = {
+  keyword: "uniqueItems",
+  type: "array",
+  schemaType: "boolean",
+  $data: true,
+  error,
+  code(cxt: KeywordCxt) {
+    const {gen, data, $data, schema, parentSchema, schemaCode, it} = cxt
+    if (!$data && !schema) return
+    const valid = gen.let("valid")
+    const itemTypes = parentSchema.items ? getSchemaTypes(parentSchema.items) : []
+    cxt.block$data(valid, validateUniqueItems, _`${schemaCode} === false`)
+    cxt.ok(valid)
+
+    function validateUniqueItems(): void {
+      const i = gen.let("i", _`${data}.length`)
+      const j = gen.let("j")
+      cxt.setParams({i, j})
+      gen.assign(valid, true)
+      gen.if(_`${i} > 1`, () => (canOptimize() ? loopN : loopN2)(i, j))
+    }
+
+    function canOptimize(): boolean {
+      return itemTypes.length > 0 && !itemTypes.some((t) => t === "object" || t === "array")
+    }
+
+    function loopN(i: Name, j: Name): void {
+      const item = gen.name("item")
+      const wrongType = checkDataTypes(itemTypes, item, it.opts.strictNumbers, DataType.Wrong)
+      const indices = gen.const("indices", _`{}`)
+      gen.for(_`;${i}--;`, () => {
+        gen.let(item, _`${data}[${i}]`)
+        gen.if(wrongType, _`continue`)
+        if (itemTypes.length > 1) gen.if(_`typeof ${item} == "string"`, _`${item} += "_"`)
+        gen
+          .if(_`typeof ${indices}[${item}] == "number"`, () => {
+            gen.assign(j, _`${indices}[${item}]`)
+            cxt.error()
+            gen.assign(valid, false).break()
+          })
+          .code(_`${indices}[${item}] = ${i}`)
+      })
+    }
+
+    function loopN2(i: Name, j: Name): void {
+      const eql = useFunc(gen, equal)
+      const outer = gen.name("outer")
+      gen.label(outer).for(_`;${i}--;`, () =>
+        gen.for(_`${j} = ${i}; ${j}--;`, () =>
+          gen.if(_`${eql}(${data}[${i}], ${data}[${j}])`, () => {
+            cxt.error()
+            gen.assign(valid, false).break(outer)
+          })
+        )
+      )
+    }
+  },
+}
+
+export default def