fix(ruby): validate string lengths

Author: schani

packages/quicktype-core/src/language/Ruby/RubyRenderer.ts

@@ -2,6 +2,7 @@ import {
     ConvenienceRenderer,
     type ForbiddenWordsInfo,
 } from "../../ConvenienceRenderer.js";
+import { minMaxLengthForType } from "../../attributes/Constraints.js";
 import { type Name, Namer } from "../../Naming.js";
 import type { RenderContext } from "../../Renderer.js";
 import type { OptionValues } from "../../RendererOptions/index.js";
@@ -103,14 +104,24 @@ export class RubyRenderer extends ConvenienceRenderer {
 
     private dryType(t: Type, isOptional = false): Sourcelike {
         const optional = isOptional ? ".optional" : "";
+        const length = (type: Type): string => {
+            const [min, max] = minMaxLengthForType(type) ?? [];
+            const constraints = [
+                min === undefined ? undefined : `min_size: ${min}`,
+                max === undefined ? undefined : `max_size: ${max}`,
+            ].filter((x): x is string => x !== undefined);
+            return constraints.length === 0
+                ? ""
+                : `.constrained(${constraints.join(", ")})`;
+        };
         return matchType<Sourcelike>(
             t,
             (_anyType) => ["Types::Any", optional],
             (_nullType) => ["Types::Nil", optional],
             (_boolType) => ["Types::Bool", optional],
             (_integerType) => ["Types::Integer", optional],
             (_doubleType) => ["Types::Double", optional],
-            (_stringType) => ["Types::String", optional],
+            (stringType) => ["Types::String", length(stringType), optional],
             (arrayType) => [
                 "Types.Array(",
                 this.dryType(arrayType.items),

test/languages.ts

@@ -464,7 +464,14 @@ export const RubyLanguage: Language = {
         "e8b04.json",
     ],
     allowMissingNull: true,
-    features: ["enum", "union", "no-defaults", "integer", "strict-optional"],
+    features: [
+        "enum",
+        "union",
+        "no-defaults",
+        "integer",
+        "minmaxlength",
+        "strict-optional",
+    ],
     output: "TopLevel.rb",
     topLevel: "TopLevel",
     skipJSON: [],