Interface: TransformOptions

Defined in: packages/rolldown/src/utils/transform.ts:19

Options for transforming a code.

Extends

• BindingEnhancedTransformOptions

Properties

assumptions?

• Type: CompilerAssumptions
• Optional

Defined in: packages/rolldown/src/binding.d.cts:2149

Set assumptions in order to produce smaller output.

Inherited from

BindingEnhancedTransformOptions.assumptions

---

cwd?

• Type: string
• Optional

Defined in: packages/rolldown/src/binding.d.cts:2139

The current working directory. Used to resolve relative paths in other options.

Inherited from

BindingEnhancedTransformOptions.cwd

---

decorator?

• Type: DecoratorOptions
• Optional

Defined in: packages/rolldown/src/binding.d.cts:2188

Decorator plugin

Inherited from

BindingEnhancedTransformOptions.decorator

---

define?

• Type: Record<string, string>
• Optional

Defined in: packages/rolldown/src/binding.d.cts:2181

Define Plugin

See

https://oxc.rs/docs/guide/usage/transformer/global-variable-replacement#define

Inherited from

BindingEnhancedTransformOptions.define

---

helpers?

• Type: Helpers
• Optional

Defined in: packages/rolldown/src/binding.d.cts:2176

Behaviour for runtime helpers.

Inherited from

BindingEnhancedTransformOptions.helpers

---

inject?

• Type: Record<string, string | [string, string]>
• Optional

Defined in: packages/rolldown/src/binding.d.cts:2186

Inject Plugin

See

https://oxc.rs/docs/guide/usage/transformer/global-variable-replacement#inject

Inherited from

BindingEnhancedTransformOptions.inject

---

inputMap?

• Type: SourceMap
• Optional

Defined in: packages/rolldown/src/binding.d.cts:2202

An input source map to collapse with the output source map.

Inherited from

BindingEnhancedTransformOptions.inputMap

---

jsx?

• Type: "preserve" | JsxOptions
• Optional

Defined in: packages/rolldown/src/binding.d.cts:2159

Configure how TSX and JSX are transformed.

See

https://oxc.rs/docs/guide/usage/transformer/jsx

Inherited from

BindingEnhancedTransformOptions.jsx

---

lang?

• Type: "js" | "jsx" | "ts" | "tsx" | "dts"
• Optional

Defined in: packages/rolldown/src/binding.d.cts:2132

Treat the source text as 'js', 'jsx', 'ts', 'tsx', or 'dts'.

Inherited from

BindingEnhancedTransformOptions.lang

---

plugins?

• Type: PluginsOptions
• Optional

Defined in: packages/rolldown/src/binding.d.cts:2193

Third-party plugins to use.

See

https://oxc.rs/docs/guide/usage/transformer/plugins

Inherited from

BindingEnhancedTransformOptions.plugins

---

sourcemap?

• Type: boolean
• Optional

Defined in: packages/rolldown/src/binding.d.cts:2147

Enable source map generation.

When true, the sourceMap field of transform result objects will be populated.

Default

false

Inherited from

BindingEnhancedTransformOptions.sourcemap

---

sourceType?

• Type: "module" | "commonjs" | "script" | "unambiguous"
• Optional

Defined in: packages/rolldown/src/binding.d.cts:2134

Treat the source text as 'script', 'module', 'commonjs', or 'unambiguous'.

Inherited from

BindingEnhancedTransformOptions.sourceType

---

target?

• Type: string | string[]
• Optional

Defined in: packages/rolldown/src/binding.d.cts:2174

Sets the target environment for the generated JavaScript.

The lowest target is es2015.

Example:

• 'es2015'
• ['es2020', 'chrome58', 'edge16', 'firefox57', 'node12', 'safari11']

Default

esnext (No transformation)

See

https://oxc.rs/docs/guide/usage/transformer/lowering#target

Inherited from

BindingEnhancedTransformOptions.target

---

tsconfig?

• Type: string | boolean | TsconfigRawOptions
• Optional

Defined in: packages/rolldown/src/binding.d.cts:2200

Configure tsconfig handling.

• true: Auto-discover and load the nearest tsconfig.json
• string: Use the tsconfig at the provided path
• TsconfigRawOptions: Use the provided inline tsconfig options

Inherited from

BindingEnhancedTransformOptions.tsconfig

---

typescript?

• Type: TypeScriptOptions
• Optional

Defined in: packages/rolldown/src/binding.d.cts:2154

Configure how TypeScript is transformed.

See

https://oxc.rs/docs/guide/usage/transformer/typescript

Inherited from

BindingEnhancedTransformOptions.typescript