Function isCompatEnabled

packages/compiler-core/src/compat/compatConfig.ts:106–115

(
  key: CompilerDeprecationTypes,
  context: MergedParserOptions | TransformContext,
)

}

export function isCompatEnabled(
  key: CompilerDeprecationTypes,
  context: MergedParserOptions | TransformContext,
): boolean {
  const mode = getCompatValue('MODE', context)
  const value = getCompatValue(key, context)
  // in v3 mode, only enable if explicitly set to true
  // otherwise enable for any non-false value
  return mode === 3 ? value === true : value !== false
}

export function checkCompatEnabled(
  key: CompilerDeprecationTypes,