From cf3cee8c51c480194cb8a3abdd439bb7498d9cb7 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Bence=20Er=C5=91s?= <ebence88@gmail.com>
Date: Wed, 11 Dec 2024 06:19:04 +0100
Subject: [PATCH] dynamic path support for prefixItems

---
 .../com/github/erosb/jsonsKema/PrefixItems.kt |  3 +-
 .../com/github/erosb/jsonsKema/Validator.kt   | 30 ++++++++++---------
 .../erosb/jsonsKema/ArrayValidationTest.kt    | 10 +++++++
 3 files changed, 28 insertions(+), 15 deletions(-)

diff --git a/src/main/kotlin/com/github/erosb/jsonsKema/PrefixItems.kt b/src/main/kotlin/com/github/erosb/jsonsKema/PrefixItems.kt
index 20648ff..f9ae03a 100644
--- a/src/main/kotlin/com/github/erosb/jsonsKema/PrefixItems.kt
+++ b/src/main/kotlin/com/github/erosb/jsonsKema/PrefixItems.kt
@@ -3,7 +3,8 @@ package com.github.erosb.jsonsKema
 data class PrefixItemsValidationFailure(
     val itemFailures: Map<Int, ValidationFailure>,
     override val schema: PrefixItemsSchema,
-    override val instance: IJsonArray<*>
+    override val instance: IJsonArray<*>,
+    val dynamicPath: JsonPointer
 ) : ValidationFailure(
     "array items ${itemFailures.keys.joinToString(", ")} failed to validate against \"prefixItems\" subschema",
     schema,
diff --git a/src/main/kotlin/com/github/erosb/jsonsKema/Validator.kt b/src/main/kotlin/com/github/erosb/jsonsKema/Validator.kt
index 75618d6..77651f5 100644
--- a/src/main/kotlin/com/github/erosb/jsonsKema/Validator.kt
+++ b/src/main/kotlin/com/github/erosb/jsonsKema/Validator.kt
@@ -554,22 +554,24 @@ private class DefaultValidator(
         }
     }
 
-    override fun visitPrefixItemsSchema(schema: PrefixItemsSchema): ValidationFailure? = instance.maybeArray { array ->
-        val failures = mutableMapOf<Int, ValidationFailure>()
-        for (index in 0 until Math.min(array.length(), schema.prefixSchemas.size)) {
-            val subschema = schema.prefixSchemas[index]
-            withOtherInstance(array.markEvaluated(index)) {
-                val failure = subschema.accept(this)
-                if (failure != null) {
-                    failures[index] = failure
-                    array.markUnevaluated(index)
+    override fun visitPrefixItemsSchema(schema: PrefixItemsSchema): ValidationFailure? = inPathSegment(Keyword.PREFIX_ITEMS) {
+        instance.maybeArray { array ->
+            val failures = mutableMapOf<Int, ValidationFailure>()
+            for (index in 0 until Math.min(array.length(), schema.prefixSchemas.size)) {
+                val subschema = schema.prefixSchemas[index]
+                withOtherInstance(array.markEvaluated(index)) {
+                    val failure = subschema.accept(this)
+                    if (failure != null) {
+                        failures[index] = failure
+                        array.markUnevaluated(index)
+                    }
                 }
             }
-        }
-        if (failures.isEmpty()) {
-            null
-        } else {
-            PrefixItemsValidationFailure(failures, schema, array)
+            if (failures.isEmpty()) {
+                null
+            } else {
+                PrefixItemsValidationFailure(failures, schema, array, dynamicPath())
+            }
         }
     }
 
diff --git a/src/test/kotlin/com/github/erosb/jsonsKema/ArrayValidationTest.kt b/src/test/kotlin/com/github/erosb/jsonsKema/ArrayValidationTest.kt
index e2fbd0e..83837b3 100644
--- a/src/test/kotlin/com/github/erosb/jsonsKema/ArrayValidationTest.kt
+++ b/src/test/kotlin/com/github/erosb/jsonsKema/ArrayValidationTest.kt
@@ -150,4 +150,14 @@ class ArrayValidationTest {
         assertEquals(JsonPointer("maxItems"), (actual.causes.filter { it.keyword == Keyword.MAX_ITEMS }.first() as MaxItemsValidationFailure).dynamicPath)
         assertEquals(JsonPointer("minItems"), (actual.causes.filter { it.keyword == Keyword.MIN_ITEMS }.first() as MinItemsValidationFailure).dynamicPath)
     }
+
+    @Test
+    fun `prefixItems dynamicPath`() {
+        val schema = SchemaLoader("""
+            { "prefixItems": [{"type": "string"}]}
+        """.trimIndent())()
+
+        val actual = Validator.forSchema(schema).validate("[2]") as PrefixItemsValidationFailure
+        assertEquals("#/prefixItems", actual.dynamicPath.toString())
+    }
 }