feat(code-gen): disable array auto-conversion types for the TS target

On complex types with a lot of array conversion types in there, TS is getting really slow. So let's disable it for now. We may want to completely remove this feature in the future.

Author: dirkdev98

packages/code-gen/src/types/optionality.js

@@ -90,7 +90,10 @@ export function typesHasDifferentTypeAfterValidators(generateContext, type) {
         hasOptionalityDifferences || inputOptionality !== outputOptionality;
 
       if (
-        nestedType.type === "array" ||
+        // tsc performance tanks because of array auto-conversion, so it's disabled. Which
+        // means that optional & non-optional types don't have a diff
+        (generateContext.options.targetLanguage !== "ts" &&
+          nestedType.type === "array") ||
         nestedType.type === "number" ||
         nestedType.type === "date" ||
         nestedType.type === "boolean"

packages/code-gen/src/types/typescript.js

@@ -295,7 +295,11 @@ export function typesTypescriptFormatType(
     fileWriteInline(file, `)`);
     fileWriteInline(file, `[]`);
 
-    if (options.validatorState === "input") {
+    if (
+      // TS performance tanks because of auto-array conversion, so this is disabled
+      generateContext.options.targetLanguage !== "ts" &&
+      options.validatorState === "input"
+    ) {
       if (type.values.type !== "anyOf") {
         // AnyOf always starts with a `|`.
         fileWriteInline(file, "|");