feat(domain): add equals for field

chapi-domain/src/main/kotlin/chapi/domain/core/CodeField.kt

@@ -11,4 +11,28 @@ open class CodeField(
     var Modifiers: Array<String> = arrayOf(),
     // for TypeScript and JavaScript only, examples: `export default sample = createHello() `
     var Calls: Array<CodeCall> = arrayOf()
-)
+) {
+    override fun equals(other: Any?): Boolean {
+        if (this === other) return true
+        if (other !is CodeField) return false
+
+        if (TypeType != other.TypeType) return false
+        if (TypeValue != other.TypeValue) return false
+        if (TypeKey != other.TypeKey) return false
+        if (!Annotaiton.contentEquals(other.Annotaiton)) return false
+        if (!Modifiers.contentEquals(other.Modifiers)) return false
+        if (!Calls.contentEquals(other.Calls)) return false
+
+        return true
+    }
+
+    override fun hashCode(): Int {
+        var result = TypeType.hashCode()
+        result = 31 * result + TypeValue.hashCode()
+        result = 31 * result + TypeKey.hashCode()
+        result = 31 * result + Annotaiton.contentHashCode()
+        result = 31 * result + Modifiers.contentHashCode()
+        result = 31 * result + Calls.contentHashCode()
+        return result
+    }
+}

chapi-domain/src/test/kotlin/chapi/domain/core/CodeFieldTest.kt

@@ -0,0 +1,12 @@
+package chapi.domain.core
+
+import org.junit.jupiter.api.Assertions.assertEquals
+import org.junit.jupiter.api.Test
+
+internal class CodeFieldTest {
+
+    @Test
+    fun testEquals() {
+        assertEquals(CodeField(TypeType = "type"), CodeField(TypeType = "type"))
+    }
+}