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setOxcTransformOptionsFromTsconfigOptions() — vite Function Reference

Architecture documentation for the setOxcTransformOptionsFromTsconfigOptions() function in oxc.ts from the vite codebase.

Function typescript PluginSystem LegacySupport calls 2 called by 1

Entity Profile

Dependency Diagram

graph TD
  c8312997_27e4_3bcf_c2e8_f08d25fffcbe["setOxcTransformOptionsFromTsconfigOptions()"]
  16dc8750_0d4e_ed3e_3844_b80096ed2e0b["oxc.ts"]
  c8312997_27e4_3bcf_c2e8_f08d25fffcbe -->|defined in| 16dc8750_0d4e_ed3e_3844_b80096ed2e0b
  047aa0d5_25bc_9eb0_8c41_99a2be202642["transformWithOxc()"]
  047aa0d5_25bc_9eb0_8c41_99a2be202642 -->|calls| c8312997_27e4_3bcf_c2e8_f08d25fffcbe
  94666cd5_e67a_3d30_2f8f_b7e582b5684f["getRollupJsxPresets()"]
  c8312997_27e4_3bcf_c2e8_f08d25fffcbe -->|calls| 94666cd5_e67a_3d30_2f8f_b7e582b5684f
  3631d371_7061_afbf_6ad9_4d8236fb85fc["resolveTsconfigTarget()"]
  c8312997_27e4_3bcf_c2e8_f08d25fffcbe -->|calls| 3631d371_7061_afbf_6ad9_4d8236fb85fc
  style c8312997_27e4_3bcf_c2e8_f08d25fffcbe fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

packages/vite/src/node/plugins/oxc.ts lines 75–213

function setOxcTransformOptionsFromTsconfigOptions(
  oxcOptions: Omit<OxcTransformOptions, 'jsx'> & {
    jsx?:
      | OxcTransformOptions['jsx']
      | 'react'
      | 'react-jsx'
      | 'preserve-react'
      | false
  },
  tsCompilerOptions: Readonly<TSCompilerOptions> | undefined = {},
  warnings: string[],
): void {
  // when both the normal options and tsconfig is set,
  // we want to prioritize the normal options
  if (oxcOptions.jsx === 'preserve-react') {
    oxcOptions.jsx = 'preserve'
  }
  if (
    tsCompilerOptions.jsx === 'preserve' &&
    (oxcOptions.jsx === undefined ||
      (typeof oxcOptions.jsx === 'object' &&
        oxcOptions.jsx.runtime === undefined))
  ) {
    oxcOptions.jsx = 'preserve'
  }
  if (oxcOptions.jsx !== 'preserve' && oxcOptions.jsx !== false) {
    const jsxOptions: OxcJsxOptions =
      typeof oxcOptions.jsx === 'string'
        ? getRollupJsxPresets(oxcOptions.jsx)
        : { ...oxcOptions.jsx }
    const typescriptOptions = { ...oxcOptions.typescript }

    if (tsCompilerOptions.jsxFactory) {
      jsxOptions.pragma ??= tsCompilerOptions.jsxFactory
      typescriptOptions.jsxPragma = jsxOptions.pragma
    }
    if (tsCompilerOptions.jsxFragmentFactory) {
      jsxOptions.pragmaFrag ??= tsCompilerOptions.jsxFragmentFactory
      typescriptOptions.jsxPragmaFrag = jsxOptions.pragmaFrag
    }
    if (tsCompilerOptions.jsxImportSource) {
      jsxOptions.importSource ??= tsCompilerOptions.jsxImportSource
    }

    if (!jsxOptions.runtime) {
      switch (tsCompilerOptions.jsx) {
        case 'react':
          jsxOptions.runtime = 'classic'
          // this option should not be set when using classic runtime
          jsxOptions.importSource = undefined
          break
        case 'react-jsxdev':
          jsxOptions.development = true
        // eslint-disable-next-line no-fallthrough
        case 'react-jsx':
          jsxOptions.runtime = 'automatic'
          // these options should not be set when using automatic runtime
          jsxOptions.pragma = undefined
          typescriptOptions.jsxPragma = undefined
          jsxOptions.pragmaFrag = undefined
          typescriptOptions.jsxPragmaFrag = undefined
          break
        default:
          break
      }
    }

    oxcOptions.jsx = jsxOptions
    oxcOptions.typescript = typescriptOptions
  }

  if (oxcOptions.decorator?.legacy === undefined) {
    const experimentalDecorators = tsCompilerOptions.experimentalDecorators
    if (experimentalDecorators !== undefined) {
      oxcOptions.decorator ??= {}
      oxcOptions.decorator.legacy = experimentalDecorators
    }
    const emitDecoratorMetadata = tsCompilerOptions.emitDecoratorMetadata
    if (emitDecoratorMetadata !== undefined) {
      oxcOptions.decorator ??= {}
      oxcOptions.decorator.emitDecoratorMetadata = emitDecoratorMetadata

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Source

Frequently Asked Questions

What does setOxcTransformOptionsFromTsconfigOptions() do?
setOxcTransformOptionsFromTsconfigOptions() is a function in the vite codebase, defined in packages/vite/src/node/plugins/oxc.ts.
Where is setOxcTransformOptionsFromTsconfigOptions() defined?
setOxcTransformOptionsFromTsconfigOptions() is defined in packages/vite/src/node/plugins/oxc.ts at line 75.
What does setOxcTransformOptionsFromTsconfigOptions() call?
setOxcTransformOptionsFromTsconfigOptions() calls 2 function(s): getRollupJsxPresets, resolveTsconfigTarget.
What calls setOxcTransformOptionsFromTsconfigOptions()?
setOxcTransformOptionsFromTsconfigOptions() is called by 1 function(s): transformWithOxc.

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