fix(core): correctly display inline objects for tuple optional types

Author: tgreyuk

.changeset/great-rules-hide.md

@@ -0,0 +1,5 @@
+---
+'typedoc-plugin-markdown': patch
+---
+
+- Correctly display inline objects for tuple optional types (#745).

packages/typedoc-plugin-markdown/src/theme/context/partials/type.optional.ts

@@ -4,7 +4,10 @@ import { OptionalType } from 'typedoc';
 export function optionalType(
   this: MarkdownThemeContext,
   model: OptionalType,
+  options?: { forceCollapse?: boolean },
 ): string {
-  const result = this.partials.someType(model.elementType);
+  const result = this.partials.someType(model.elementType, {
+    forceCollapse: options?.forceCollapse,
+  });
   return model.elementType.type === 'union' ? `(${result})?` : `${result}?`;
 }

packages/typedoc-plugin-markdown/src/theme/context/partials/type.some.ts

@@ -87,7 +87,9 @@ export function someType(
   }
 
   if (model instanceof OptionalType) {
-    return this.partials.optionalType(model);
+    return this.partials.optionalType(model, {
+      forceCollapse: options?.forceCollapse,
+    });
   }
 
   if (model.toString() == 'null') {

packages/typedoc-plugin-markdown/src/theme/context/resources.ts

@@ -257,8 +257,10 @@ There is no association list partial for properties as these are handled as a st
       partials.literalType.apply(context, [model]) as string,
     namedTupleType: (model: NamedTupleMember) =>
       partials.namedTupleType.apply(context, [model]) as string,
-    optionalType: (model: OptionalType) =>
-      partials.optionalType.apply(context, [model]) as string,
+    optionalType: (
+      model: OptionalType,
+      options?: { forceCollapse?: boolean | undefined } | undefined,
+    ) => partials.optionalType.apply(context, [model, options]) as string,
     queryType: (model: QueryType) =>
       partials.queryType.apply(context, [model]) as string,
     referenceType: (model: ReferenceType) =>

packages/typedoc-plugin-markdown/test/fixtures/tsconfig.json

@@ -5,7 +5,7 @@
     "declaration": true,
     "lib": ["es2022", "dom"],
     "module": "node16",
-    "strict": true,
+    "strict": false,
     "noUnusedLocals": false,
     "noUnusedParameters": false,
     "target": "es2022"

packages/typedoc-plugin-markdown/test/specs/__snapshots__/reflection.function.spec.ts.snap

@@ -511,7 +511,7 @@ Comments for array of union stuff
 
 ### a
 
-\\[(\`null\` \\| [\`Stuff\`](../type-aliases/Stuff.md))?\\]
+\\[[\`Stuff\`](../type-aliases/Stuff.md)?\\]
 
 ## Returns
 
@@ -523,7 +523,7 @@ exports[`Function Reflection should compile function with array of union stuff:
 "# Function: functionWithArrayOfUnionStuff()
 
 \`\`\`ts
-function functionWithArrayOfUnionStuff(a: [(null | Stuff)?]): void
+function functionWithArrayOfUnionStuff(a: [Stuff?]): void
 \`\`\`
 
 Defined in: [functions.ts:1](http://source-url)
@@ -534,7 +534,7 @@ Comments for array of union stuff
 
 | Parameter | Type |
 | :------ | :------ |
-| \`a\` | \\[(\`null\` \\| [\`Stuff\`](../type-aliases/Stuff.md))?\\] |
+| \`a\` | \\[[\`Stuff\`](../type-aliases/Stuff.md)?\\] |
 
 ## Returns
 
@@ -1170,7 +1170,7 @@ Defined in: [functions.ts:1](http://source-url)
 
 ### opts
 
-\\[(\`null\` \\| \\{ \`a\`: \`string\`; \`b\`: \`string\`; \\})?\\]
+\\[\\{ \`a\`: \`string\`; \`b\`: \`string\`; \\}?\\]
 
 ## Returns
 
@@ -1182,12 +1182,10 @@ exports[`Function Reflection should compile function with tuple type optional pa
 "# Function: tupleTypeFunctionOptional()
 
 \`\`\`ts
-function tupleTypeFunctionOptional(opts: [(
-  | null
-  | {
+function tupleTypeFunctionOptional(opts: [{
   a: string;
   b: string;
- })?]): void
+ }?]): void
 \`\`\`
 
 Defined in: [functions.ts:1](http://source-url)
@@ -1196,7 +1194,7 @@ Defined in: [functions.ts:1](http://source-url)
 
 | Parameter | Type |
 | :------ | :------ |
-| \`opts\` | \\[( \\| \`null\` \\| \\{ \`a\`: \`string\`; \`b\`: \`string\`; \\})?\\] |
+| \`opts\` | \\[\\{ \`a\`: \`string\`; \`b\`: \`string\`; \\}?\\] |
 
 ## Returns
 
@@ -1299,7 +1297,7 @@ Function with type parameters
 exports[`Function Reflection should compile function with union params: (Output File Strategy "members") (Option Group "1") 1`] = `
 "# Function: functionWithUnionParams()
 
-> **functionWithUnionParams**(\`primitiveUnions\`, \`objectUnions\`, \`mixedUnions\`, \`noUnions\`): \`undefined\`
+> **functionWithUnionParams**(\`primitiveUnions\`, \`objectUnions\`, \`mixedUnions\`, \`noUnions\`): \`any\`
 
 Defined in: [functions.ts:1](http://source-url)
 
@@ -1367,7 +1365,7 @@ Comments for noUnions
 
 ## Returns
 
-\`undefined\`
+\`any\`
 "
 `;
 
@@ -1402,7 +1400,7 @@ function functionWithUnionParams(
      z: string;
     };
  }, 
-   noUnions: string): undefined
+   noUnions: string): any
 \`\`\`
 
 Defined in: [functions.ts:1](http://source-url)
@@ -1418,6 +1416,6 @@ Defined in: [functions.ts:1](http://source-url)
 
 ## Returns
 
-\`undefined\`
+\`any\`
 "
 `;