diff method

PackageApiDiffResult diff({ required PackageApi oldApi, required PackageApi newApi, })

calculates a diff between oldApi and newApi

Implementation

PackageApiDiffResult diff({
  required PackageApi oldApi,
  required PackageApi newApi,
}) {
  if (oldApi.packageName != newApi.packageName) {
    throw PackageApiDiffError(
        message:
            'Got different packages. Can\'t create diff. Old Package = "${oldApi.packageName}", New Package = "${newApi.packageName}"');
  }

  if (!SetEquality<PackageApiSemantics>()
      .equals(oldApi.semantics, newApi.semantics)) {
    throw PackageApiDiffError(
        message:
            'Given models have different semantics. Old Package: ${oldApi.semantics}, New Package: ${newApi.semantics}');
  }

  try {
    final changes = [
      ..._calculateInterfacesDiff(
        oldApi.interfaceDeclarations,
        newApi.interfaceDeclarations,
        Stack<Declaration>(),
        isExperimental: false,
        typeHierarchy: newApi.typeHierarchy,
      ),
      ..._calculateExecutablesDiff(
        oldApi.executableDeclarations,
        newApi.executableDeclarations,
        Stack<Declaration>(),
        isExperimental: false,
        typeHierarchy: newApi.typeHierarchy,
      ),
      ..._calculateFieldsDiff(
        oldApi.fieldDeclarations,
        newApi.fieldDeclarations,
        Stack<Declaration>(),
        isExperimental: false,
        typeHierarchy: newApi.typeHierarchy,
      ),
      ..._calculateIOSPlatformConstraintsDiff(
        oldApi.iosPlatformConstraints,
        newApi.iosPlatformConstraints,
        isExperimental: false,
      ),
      ..._calculateAndroidPlatformConstraintsDiff(
        oldApi.androidPlatformConstraints,
        newApi.androidPlatformConstraints,
        isExperimental: false,
      ),
      ..._calculateSdkDiff(
        oldApi,
        newApi,
        isExperimental: false,
        doCheckSdkVersion: options.doCheckSdkVersion,
      ),
      ..._calculatePackageDependenciesDiff(
        oldApi,
        newApi,
        isExperimental: false,
      ),
    ];

    return PackageApiDiffResult()..addApiChanges(changes);
  } on Object catch (e, t) {
    throw PackageApiDiffError(
        message: 'Error while creating the diff: $e $t');
  }
}