refactor: contains to typescript (WIP)

lib/dot/contains.jst

@@ -43,15 +43,15 @@ var {{=$valid}};
   {{= $closingBraces }}
 
   if (!{{=$nextValid}}) {
-{{??}}
-  if ({{=$data}}.length == 0) {
-{{?}}
-
     {{# def.error:'contains' }}
   } else {
-    {{? $nonEmptySchema }}
-      {{# def.resetErrors }}
-    {{?}}
+    {{# def.resetErrors }}
   {{? it.opts.allErrors }} } {{?}}
+{{??}}
+  if ({{=$data}}.length == 0) {
+    {{# def.error:'contains' }}
+  }
+  {{? !it.opts.allErrors }} else { {{?}}
+{{?}}
 
 {{ it.gen.code(out); }}

lib/vocabularies/applicator/contains.ts

@@ -0,0 +1,39 @@
+import {KeywordDefinition} from "../../types"
+import {nonEmptySchema} from "../util"
+import {applySubschema, Expr} from "../../compile/subschema"
+
+const def: KeywordDefinition = {
+  keyword: "contains",
+  type: "array",
+  schemaType: ["object", "boolean"],
+  code(cxt) {
+    const {gen, fail, schema, data, it} = cxt
+    const {dataLevel} = it
+    let closeBlocks = ""
+    const errsCount = gen.name("_errs")
+    gen.code(`const ${errsCount} = errors;`)
+
+    if (nonEmptySchema(it, schema)) {
+      const i = gen.name("i")
+      gen.code(`for (let ${i}=0; i<${data}.length; i++) {`)
+      const schValid = applySubschema(it, {
+        keyword: "contains",
+        dataProp: i,
+        expr: Expr.Num,
+        compositeRule: true,
+      })
+      gen.code(
+        `if (${schValid}) break; 
+        }`
+      )
+    } else {
+      fail(`${data}.length === 0`)
+    }
+  },
+  error: {
+    message: ({schema}) => `"should NOT have more than ${schema.length} items"`,
+    params: ({schema}) => `{limit: ${schema.length}}`,
+  },
+}
+
+module.exports = def