Function getCompatValue

packages/compiler-core/src/compat/compatConfig.ts:94–104

(
  key: CompilerDeprecationTypes | 'MODE',
  { compatConfig }: MergedParserOptions | TransformContext,
)

}

function getCompatValue(
  key: CompilerDeprecationTypes | 'MODE',
  { compatConfig }: MergedParserOptions | TransformContext,
) {
  const value = compatConfig && compatConfig[key]
  if (key === 'MODE') {
    return value || 3 // compiler defaults to v3 behavior
  } else {
    return value
  }
}

export function isCompatEnabled(
  key: CompilerDeprecationTypes,