--- /dev/null
+import type {CodeKeywordDefinition} from "../../types"
+import type {KeywordCxt} from "../../compile/validate"
+import {_, getProperty, Code} from "../../compile/codegen"
+import N from "../../compile/names"
+import {SchemaEnv, compileSchema} from "../../compile"
+import {getValidate} from "../core/ref"
+
+const def: CodeKeywordDefinition = {
+ keyword: "$dynamicAnchor",
+ schemaType: "string",
+ code: (cxt) => dynamicAnchor(cxt, cxt.schema),
+}
+
+export function dynamicAnchor(cxt: KeywordCxt, anchor: string): void {
+ const {gen, it} = cxt
+ it.schemaEnv.root.dynamicAnchors[anchor] = true
+ const v = _`${N.dynamicAnchors}${getProperty(anchor)}`
+ const validate = it.errSchemaPath === "#" ? it.validateName : _getValidate(cxt)
+ gen.if(_`!${v}`, () => gen.assign(v, validate))
+}
+
+function _getValidate(cxt: KeywordCxt): Code {
+ const {schemaEnv, schema, self} = cxt.it
+ const {root, baseId, localRefs, meta} = schemaEnv.root
+ const sch = new SchemaEnv({schema, root, baseId, localRefs, meta})
+ compileSchema.call(self, sch)
+ return getValidate(cxt, sch)
+}
+
+export default def