fix: broken encoding

.changeset/dry-socks-thank.md

@@ -0,0 +1,5 @@
+---
+"@hey-api/openapi-ts": patch
+---
+
+fix: broken encoding

packages/openapi-ts/src/compiler/classes.ts

@@ -1,64 +1,15 @@
 import ts from 'typescript';
 
 import { createTypeNode } from './typedef';
-import { toExpression } from './types';
+import {
+  type AccessLevel,
+  type FunctionParameter,
+  toAccessLevelModifiers,
+  toExpression,
+  toParameterDeclarations,
+} from './types';
 import { addLeadingJSDocComment, Comments, isType } from './utils';
 
-type AccessLevel = 'public' | 'protected' | 'private';
-
-export type FunctionParameter = {
-  accessLevel?: AccessLevel;
-  default?: any;
-  isReadOnly?: boolean;
-  isRequired?: boolean;
-  name: string;
-  type: any | ts.TypeNode;
-};
-
-/**
- * Convert AccessLevel to proper TypeScript compiler API modifier.
- * @param access - the access level.
- * @returns ts.ModifierLike[]
- */
-const toAccessLevelModifiers = (access?: AccessLevel): ts.ModifierLike[] => {
-  const keyword =
-    access === 'public'
-      ? ts.SyntaxKind.PublicKeyword
-      : access === 'protected'
-        ? ts.SyntaxKind.ProtectedKeyword
-        : access === 'private'
-          ? ts.SyntaxKind.PrivateKeyword
-          : undefined;
-  const modifiers: ts.ModifierLike[] = [];
-  if (keyword) {
-    modifiers.push(ts.factory.createModifier(keyword));
-  }
-  return modifiers;
-};
-
-/**
- * Convert parameters to the declaration array expected by compiler API.
- * @param parameters - the parameters to conver to declarations
- * @returns ts.ParameterDeclaration[]
- */
-export const toParameterDeclarations = (parameters: FunctionParameter[]) =>
-  parameters.map((p) => {
-    const modifiers = toAccessLevelModifiers(p.accessLevel);
-    if (p.isReadOnly) {
-      modifiers.push(ts.factory.createModifier(ts.SyntaxKind.ReadonlyKeyword));
-    }
-    return ts.factory.createParameterDeclaration(
-      modifiers,
-      undefined,
-      ts.factory.createIdentifier(p.name),
-      p.isRequired !== undefined && !p.isRequired
-        ? ts.factory.createToken(ts.SyntaxKind.QuestionToken)
-        : undefined,
-      p.type !== undefined ? createTypeNode(p.type) : undefined,
-      p.default !== undefined ? toExpression({ value: p.default }) : undefined,
-    );
-  });
-
 /**
  * Create a class constructor declaration.
  * @param accessLevel - the access level of the constructor.

packages/openapi-ts/src/compiler/index.ts

@@ -10,8 +10,8 @@
 import * as types from './types';
 import { stringToTsNodes, tsNodeToString } from './utils';
 
-export type { FunctionParameter } from './classes';
 export type { Property } from './typedef';
+export type { FunctionParameter } from './types';
 export type { Comments } from './utils';
 export type { ClassElement, Node, TypeNode } from 'typescript';
 
@@ -52,11 +52,11 @@
     }
   }
 
-  public add(...nodes: Array<ts.Node | string>): void {
+  public add(...nodes: Array<ts.Node | string>) {
     this._items = [...this._items, ...nodes];
   }
 
-  public addImport(...params: Parameters<typeof compiler.import.named>): void {
+  public addImport(...params: Parameters<typeof compiler.import.named>) {
     this._imports = [...this._imports, compiler.import.named(...params)];
   }
 
@@ -94,13 +94,15 @@
     if (this._imports.length) {
       output = [
         ...output,
-        this._imports.map((v) => tsNodeToString(v)).join('\n'),
+        this._imports.map((node) => tsNodeToString({ node })).join('\n'),
       ];
     }
     output = [
       ...output,
-      ...this._items.map((v) =>
-        typeof v === 'string' ? v : tsNodeToString(v),
+      ...this._items.map((node) =>
+        typeof node === 'string'
+          ? node
+          : tsNodeToString({ node, unescape: true }),
       ),
     ];
     return output.join(seperator);

packages/openapi-ts/src/compiler/module.ts

@@ -1,6 +1,11 @@
 import ts from 'typescript';
 
-import { addLeadingJSDocComment, type Comments, ots } from './utils';
+import {
+  addLeadingJSDocComment,
+  type Comments,
+  type ImportItemObject,
+  ots,
+} from './utils';
 
 /**
  * Create export all declaration. Example: `export * from './y'`.
@@ -15,9 +20,7 @@ export const createExportAllDeclaration = (module: string) =>
     ots.string(module),
   );
 
-type ImportItem =
-  | { name: string; isTypeOnly?: boolean; alias?: string }
-  | string;
+type ImportItem = ImportItemObject | string;
 
 /**
  * Create a named export declaration. Example: `export { X } from './y'`.
@@ -103,28 +106,30 @@ export const createNamedImportDeclarations = (
   items: Array<ImportItem> | ImportItem,
   module: string,
 ): ts.ImportDeclaration => {
-  items = Array.isArray(items) ? items : [items];
-  const isAllTypes = items.every((i) => typeof i === 'object' && i.isTypeOnly);
-  return ts.factory.createImportDeclaration(
+  const importedTypes = Array.isArray(items) ? items : [items];
+  const isTypeOnly = !importedTypes.some(
+    (item) => typeof item !== 'object' || !item.isTypeOnly,
+  );
+  const elements = importedTypes.map((item) => {
+    const importedType: ImportItemObject =
+      typeof item === 'string' ? { name: item } : item;
+    return ots.import({
+      alias: importedType.alias,
+      isTypeOnly: isTypeOnly ? false : Boolean(importedType.isTypeOnly),
+      name: importedType.name,
+    });
+  });
+  const namedBindings = ts.factory.createNamedImports(elements);
+  const importClause = ts.factory.createImportClause(
+    isTypeOnly,
     undefined,
-    ts.factory.createImportClause(
-      isAllTypes,
-      undefined,
-      ts.factory.createNamedImports(
-        items.map((item) => {
-          const {
-            name,
-            isTypeOnly = undefined,
-            alias = undefined,
-          } = typeof item === 'string' ? { name: item } : item;
-          return ots.import(
-            name,
-            isAllTypes ? false : Boolean(isTypeOnly),
-            alias,
-          );
-        }),
-      ),
-    ),
-    ots.string(module),
+    namedBindings,
+  );
+  const moduleSpecifier = ots.string(module);
+  const statement = ts.factory.createImportDeclaration(
+    undefined,
+    importClause,
+    moduleSpecifier,
   );
+  return statement;
 };

packages/openapi-ts/src/compiler/typedef.ts

@@ -170,7 +170,7 @@
   const node = createTypeInterfaceNode([
     {
       isRequired: true,
-      name: `[key: ${tsNodeToString(keyNode)}]`,
+      name: `[key: ${tsNodeToString({ node: keyNode, unescape: true })}]`,
       type: valueNode,
     },
   ]);

packages/openapi-ts/src/compiler/types.ts

@@ -1,9 +1,19 @@
 import ts from 'typescript';
 
-import { type FunctionParameter, toParameterDeclarations } from './classes';
 import { createTypeNode } from './typedef';
 import { addLeadingJSDocComment, type Comments, isType, ots } from './utils';
 
+export type AccessLevel = 'public' | 'protected' | 'private';
+
+export type FunctionParameter = {
+  accessLevel?: AccessLevel;
+  default?: any;
+  isReadOnly?: boolean;
+  isRequired?: boolean;
+  name: string;
+  type: any | ts.TypeNode;
+};
+
 /**
  * Convert an unknown value to an expression.
  * @param identifiers - list of keys that are treated as identifiers.
@@ -48,6 +58,52 @@
   }
 };
 
+/**
+ * Convert AccessLevel to proper TypeScript compiler API modifier.
+ * @param access - the access level.
+ * @returns ts.ModifierLike[]
+ */
+export const toAccessLevelModifiers = (
+  access?: AccessLevel,
+): ts.ModifierLike[] => {
+  const keyword =
+    access === 'public'
+      ? ts.SyntaxKind.PublicKeyword
+      : access === 'protected'
+        ? ts.SyntaxKind.ProtectedKeyword
+        : access === 'private'
+          ? ts.SyntaxKind.PrivateKeyword
+          : undefined;
+  const modifiers: ts.ModifierLike[] = [];
+  if (keyword) {
+    modifiers.push(ts.factory.createModifier(keyword));
+  }
+  return modifiers;
+};
+
+/**
+ * Convert parameters to the declaration array expected by compiler API.
+ * @param parameters - the parameters to conver to declarations
+ * @returns ts.ParameterDeclaration[]
+ */
+export const toParameterDeclarations = (parameters: FunctionParameter[]) =>
+  parameters.map((p) => {
+    const modifiers = toAccessLevelModifiers(p.accessLevel);
+    if (p.isReadOnly) {
+      modifiers.push(ts.factory.createModifier(ts.SyntaxKind.ReadonlyKeyword));
+    }
+    return ts.factory.createParameterDeclaration(
+      modifiers,
+      undefined,
+      ts.factory.createIdentifier(p.name),
+      p.isRequired !== undefined && !p.isRequired
+        ? ts.factory.createToken(ts.SyntaxKind.QuestionToken)
+        : undefined,
+      p.type !== undefined ? createTypeNode(p.type) : undefined,
+      p.default !== undefined ? toExpression({ value: p.default }) : undefined,
+    );
+  });
+
 /**
  * Create Function type expression.
  */