feat: add InputOptions#platform (rolldown#751)

crates/rolldown/src/lib.rs

@@ -29,6 +29,7 @@ pub use crate::{
     output_options::{OutputFormat, OutputOptions, SourceMapType},
     types::input_item::InputItem,
     types::output_option::AddonOutputOption,
+    types::platform::Platform,
   },
   types::rolldown_output::RolldownOutput,
 };

crates/rolldown/src/options/input_options/mod.rs

@@ -9,6 +9,7 @@ use rolldown_error::BuildError;
 use self::resolve_options::ResolveOptions;
 
 use super::types::input_item::InputItem;
+use super::types::platform::Platform;
 
 pub mod resolve_options;
 
@@ -62,4 +63,5 @@ pub struct InputOptions {
   pub external: Option<External>,
   pub treeshake: Option<bool>,
   pub resolve: Option<ResolveOptions>,
+  pub platform: Option<Platform>,
 }

crates/rolldown/src/options/normalized_input_options/mod.rs

@@ -7,7 +7,7 @@ use derivative::Derivative;
 
 use crate::External;
 
-use super::types::input_item::InputItem;
+use super::types::{input_item::InputItem, platform::Platform};
 
 pub type SharedNormalizedInputOptions = Arc<NormalizedInputOptions>;
 
@@ -18,4 +18,5 @@ pub struct NormalizedInputOptions {
   pub cwd: PathBuf,
   pub external: External,
   pub treeshake: bool,
+  pub platform: Platform,
 }

crates/rolldown/src/options/types/mod.rs

@@ -1,2 +1,3 @@
 pub mod input_item;
 pub mod output_option;
+pub mod platform;

crates/rolldown/src/options/types/platform.rs

@@ -0,0 +1,20 @@
+#[derive(Debug)]
+pub enum Platform {
+  /// Represents the Node.js platform.
+  Node,
+  Browser,
+  Neutral,
+}
+
+impl TryFrom<&str> for Platform {
+  type Error = String;
+
+  fn try_from(value: &str) -> Result<Self, Self::Error> {
+    match value {
+      "node" => Ok(Self::Node),
+      "browser" => Ok(Self::Browser),
+      "neutral" => Ok(Self::Neutral),
+      _ => Err(format!("Unknown platform: {value:?}")),
+    }
+  }
+}

crates/rolldown/src/utils/normalize_options.rs

@@ -3,6 +3,7 @@ use rolldown_resolver::EnforceExtension;
 use crate::options::{
   normalized_input_options::NormalizedInputOptions,
   normalized_output_options::NormalizedOutputOptions, output_options::SourceMapType,
+  types::platform::Platform,
 };
 
 #[allow(clippy::struct_field_names)]
@@ -68,6 +69,7 @@ pub fn normalize_options(
       .unwrap_or_else(|| std::env::current_dir().expect("Failed to get current dir")),
     external: raw_input.external.unwrap_or_default(),
     treeshake: raw_input.treeshake.unwrap_or(true),
+    platform: raw_input.platform.unwrap_or(Platform::Browser),
   };
 
   // Normalize output options

crates/rolldown/tests/common/fixture.rs

@@ -123,6 +123,7 @@ impl Fixture {
           modules: value.modules,
           symlinks: value.symlinks,
         }),
+        ..Default::default()
       },
       OutputOptions {
         entry_file_names: "[name].mjs".to_string().into(),

crates/rolldown_binding/src/options/binding_input_options/mod.rs

@@ -53,6 +53,8 @@ pub struct BindingInputOptions {
   // strictDeprecations?: boolean;
   // pub treeshake: Option<bool>,
   // watch?: WatcherOptions | false;
+  #[napi(ts_type = "'node' | 'browser' | 'neutral'")]
+  pub platform: Option<String>,
 
   // extra
   pub cwd: String,

crates/rolldown_binding/src/utils/normalize_binding_options.rs

@@ -4,7 +4,7 @@ use crate::{
   options::plugin::JsPlugin,
   types::{binding_rendered_chunk::RenderedChunk, js_callback::MaybeAsyncJsCallbackExt},
 };
-use rolldown::{AddonOutputOption, InputOptions, OutputOptions};
+use rolldown::{AddonOutputOption, InputOptions, OutputOptions, Platform};
 use rolldown_error::BuildError;
 use rolldown_plugin::BoxPlugin;
 
@@ -54,6 +54,12 @@ pub fn normalize_binding_options(
     external: external.into(),
     treeshake: true.into(),
     resolve: input_options.resolve.map(Into::into),
+    platform: input_options
+      .platform
+      .as_deref()
+      .map(Platform::try_from)
+      .transpose()
+      .map_err(|err| napi::Error::new(napi::Status::GenericFailure, err))?,
   };
 
   // Deal with output options

crates/rolldown_binding_wasm/src/lib.rs

@@ -67,6 +67,7 @@ pub fn bundle(file_list: Vec<FileItem>) -> Vec<AssetItem> {
           external: Some(External::ArrayString(vec![])),
           treeshake: Some(false),
           resolve: None,
+          ..Default::default()
         })
         .build();
 

packages/rolldown/src/binding.d.ts

@@ -77,6 +77,7 @@ export interface BindingInputOptions {
   input: Array<BindingInputItem>
   plugins: Array<BindingPluginOptions>
   resolve?: BindingResolveOptions
+  platform?: 'node' | 'browser' | 'neutral'
   cwd: string
 }
 

packages/rolldown/src/options/input-options-adapter.ts

@@ -17,6 +17,7 @@ export function createInputOptionsAdapter(
     cwd: inputOptions.cwd ?? process.cwd(),
     external: inputOptions.external ? options.external : undefined,
     resolve: options.resolve,
+    platform: options.platform,
   }
 }
 

packages/rolldown/src/options/input-options.ts

@@ -3,7 +3,7 @@ import {
   InputOptions as RollupInputOptions,
 } from '../rollup-types'
 import { ensureArray, normalizePluginOption } from '../utils'
-import { BindingResolveOptions } from '../binding'
+import { BindingInputOptions, BindingResolveOptions } from '../binding'
 import { Plugin } from '../plugin'
 
 // TODO export compat plugin type
@@ -13,6 +13,7 @@ export interface InputOptions {
   external?: RollupInputOptions['external']
   resolve?: RolldownResolveOptions
   cwd?: string
+  platform?: BindingInputOptions['platform']
 }
 
 export type RolldownResolveOptions = Omit<BindingResolveOptions, 'alias'> & {
@@ -21,6 +22,7 @@ export type RolldownResolveOptions = Omit<BindingResolveOptions, 'alias'> & {
 
 export type RolldownNormalizedInputOptions = NormalizedInputOptions & {
   resolve?: BindingResolveOptions
+  platform?: BindingInputOptions['platform']
 }
 
 export async function normalizeInputOptions(
@@ -32,6 +34,7 @@ export async function normalizeInputOptions(
     plugins: await normalizePluginOption(config.plugins),
     external: getIdMatcher(config.external),
     resolve: getResolve(config.resolve),
+    platform: config.platform,
   }
 }