mirror of
https://github.com/microsoft/regorus.git
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feat: Regorus nuget package (#383)
Organize C# binding example into separate Regorus nuget package and a test app. The nuget package targets netstandard 2.0 and 2.1. The test app is tested for netframework 8.0. Implement IDisposable for Engine cleanup. Also remove net40 example. Can be added back later if needed. Signed-off-by: Anand Krishnamoorthi <anakrish@microsoft.com>
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Anand Krishnamoorthi
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GitHub
parent
c7bf460bc1
commit
2858b63cd4
240
bindings/csharp/Regorus/Regorus.cs
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240
bindings/csharp/Regorus/Regorus.cs
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// Copyright (c) Microsoft Corporation.
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// Licensed under the MIT License.
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using System;
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using System.Runtime.InteropServices;
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using System.Text;
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#nullable enable
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namespace Regorus
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{
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public unsafe sealed class Engine : System.IDisposable
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{
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private Regorus.Internal.RegorusEngine* E;
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// Detect redundant Dispose() calls in a thread-safe manner.
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// _isDisposed == 0 means Dispose(bool) has not been called yet.
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// _isDisposed == 1 means Dispose(bool) has been already called.
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private int isDisposed;
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public Engine()
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{
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E = Regorus.Internal.API.regorus_engine_new();
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}
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public void Dispose()
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{
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Dispose(disposing: true);
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// This object will be cleaned up by the Dispose method.
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// Therefore, call GC.SuppressFinalize to
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// take this object off the finalization queue
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// and prevent finalization code for this object
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// from executing a second time.
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GC.SuppressFinalize(this);
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}
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// Dispose(bool disposing) executes in two distinct scenarios.
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// If disposing equals true, the method has been called directly
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// or indirectly by a user's code. Managed and unmanaged resources
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// can be disposed.
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// If disposing equals false, the method has been called by the
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// runtime from inside the finalizer and you should not reference
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// other objects. Only unmanaged resources can be disposed.
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void Dispose(bool disposing)
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{
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// In case _isDisposed is 0, atomically set it to 1.
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// Enter the branch only if the original value is 0.
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if (System.Threading.Interlocked.CompareExchange(ref isDisposed, 1, 0) == 0)
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{
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// If disposing equals true, dispose all managed
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// and unmanaged resources.
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if (disposing)
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{
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// No managed resource to dispose.
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}
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// Call the appropriate methods to clean up
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// unmanaged resources here.
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// If disposing is false,
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// only the following code is executed.
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if (E != null)
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{
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Regorus.Internal.API.regorus_engine_drop(E);
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E = null;
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}
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}
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}
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// Use C# finalizer syntax for finalization code.
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// This finalizer will run only if the Dispose method
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// does not get called.
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~Engine() => Dispose(disposing: false);
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// Helper for implementing Clone
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private Engine(Internal.RegorusEngine* engine)
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{
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this.E = engine;
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}
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public Engine Clone() => new(Internal.API.regorus_engine_clone(E));
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byte[] NullTerminatedUTF8Bytes(string s)
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{
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return Encoding.UTF8.GetBytes(s + char.MinValue);
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}
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public string? AddPolicy(string path, string rego)
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{
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var pathBytes = NullTerminatedUTF8Bytes(path);
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var regoBytes = NullTerminatedUTF8Bytes(rego);
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fixed (byte* pathPtr = pathBytes)
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{
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fixed (byte* regoPtr = regoBytes)
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{
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return CheckAndDropResult(Regorus.Internal.API.regorus_engine_add_policy(E, pathPtr, regoPtr));
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}
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}
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}
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public void SetRegoV0(bool enable)
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{
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CheckAndDropResult(Regorus.Internal.API.regorus_engine_set_rego_v0(E, enable));
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}
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public string? AddPolicyFromFile(string path)
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{
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var pathBytes = NullTerminatedUTF8Bytes(path);
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fixed (byte* pathPtr = pathBytes)
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{
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return CheckAndDropResult(Regorus.Internal.API.regorus_engine_add_policy_from_file(E, pathPtr));
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}
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}
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public void AddDataJson(string data)
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{
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var dataBytes = NullTerminatedUTF8Bytes(data);
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fixed (byte* dataPtr = dataBytes)
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{
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CheckAndDropResult(Regorus.Internal.API.regorus_engine_add_data_json(E, dataPtr));
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}
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}
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public void AddDataFromJsonFile(string path)
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{
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var pathBytes = NullTerminatedUTF8Bytes(path);
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fixed (byte* pathPtr = pathBytes)
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{
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CheckAndDropResult(Regorus.Internal.API.regorus_engine_add_data_from_json_file(E, pathPtr));
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}
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}
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public void SetInputJson(string input)
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{
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var inputBytes = NullTerminatedUTF8Bytes(input);
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fixed (byte* inputPtr = inputBytes)
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{
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CheckAndDropResult(Regorus.Internal.API.regorus_engine_set_input_json(E, inputPtr));
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}
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}
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public void SetInputFromJsonFile(string path)
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{
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var pathBytes = NullTerminatedUTF8Bytes(path);
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fixed (byte* pathPtr = pathBytes)
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{
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CheckAndDropResult(Regorus.Internal.API.regorus_engine_set_input_from_json_file(E, pathPtr));
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}
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}
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public string? EvalQuery(string query)
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{
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var queryBytes = NullTerminatedUTF8Bytes(query);
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fixed (byte* queryPtr = queryBytes)
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{
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return CheckAndDropResult(Regorus.Internal.API.regorus_engine_eval_query(E, queryPtr));
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}
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}
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public string? EvalRule(string rule)
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{
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var ruleBytes = NullTerminatedUTF8Bytes(rule);
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fixed (byte* rulePtr = ruleBytes)
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{
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return CheckAndDropResult(Regorus.Internal.API.regorus_engine_eval_query(E, rulePtr));
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}
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}
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public void SetEnableCoverage(bool enable)
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{
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CheckAndDropResult(Regorus.Internal.API.regorus_engine_set_enable_coverage(E, enable));
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}
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public void ClearCoverageData()
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{
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CheckAndDropResult(Regorus.Internal.API.regorus_engine_clear_coverage_data(E));
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}
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public string? GetCoverageReport()
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{
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return CheckAndDropResult(Regorus.Internal.API.regorus_engine_get_coverage_report(E));
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}
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public string? GetCoverageReportPretty()
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{
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return CheckAndDropResult(Regorus.Internal.API.regorus_engine_get_coverage_report_pretty(E));
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}
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public void SetGatherPrints(bool enable)
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{
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CheckAndDropResult(Regorus.Internal.API.regorus_engine_set_gather_prints(E, enable));
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}
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public string? TakePrints()
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{
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return CheckAndDropResult(Regorus.Internal.API.regorus_engine_take_prints(E));
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}
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string? StringFromUTF8(IntPtr ptr)
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{
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#if NETSTANDARD2_1
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return System.Runtime.InteropServices.Marshal.PtrToStringUTF8(ptr);
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#else
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int len = 0;
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while (Marshal.ReadByte(ptr, len) != 0) { ++len; }
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byte[] buffer = new byte[len];
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Marshal.Copy(ptr, buffer, 0, buffer.Length);
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return Encoding.UTF8.GetString(buffer);
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#endif
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}
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string? CheckAndDropResult(Regorus.Internal.RegorusResult result)
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{
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if (result.status != Regorus.Internal.RegorusStatus.RegorusStatusOk)
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{
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var message = StringFromUTF8((IntPtr)result.error_message);
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var ex = new Exception(message);
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Regorus.Internal.API.regorus_result_drop(result);
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throw ex;
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}
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var resultString = "";
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if (result.output is not null)
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{
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resultString = StringFromUTF8((IntPtr)result.output);
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}
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Regorus.Internal.API.regorus_result_drop(result);
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return resultString;
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}
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}
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}
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48
bindings/csharp/Regorus/Regorus.csproj
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48
bindings/csharp/Regorus/Regorus.csproj
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<Project Sdk="Microsoft.NET.Sdk">
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<PropertyGroup>
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<OutputType>Library</OutputType>
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<RootNamespace>Microsoft.Regorus</RootNamespace>
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<TargetFrameworks>netstandard2.0;netstandard2.1</TargetFrameworks>
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<AllowUnsafeBlocks>true</AllowUnsafeBlocks>
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<Version>0.4.0-preview.1</Version>
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<LangVersion>10.0</LangVersion>
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<PackageReadmeFile>README.md</PackageReadmeFile>
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</PropertyGroup>
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<!--
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$(RegorusFFIArtifactsDir) is the location where regorus shared libraries have been
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built for various platforms and copied to. RegorusFFIArtifactsDir is passed in
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by the publishing pipeline.
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For each target triple, `Pack` expects the regorus ffi shared library
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to be found in $(RegorusFFIArtifactsDir)/<target-triple>/release.
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-->
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<Target Name="ChecksRegorusFFIArtifactsDir" BeforeTargets="Pack">
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<Error Text="RegorusFFIArtifactsDir must be supplied." Condition="$(RegorusFFIArtifactsDir) == ''" />
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<!-- Ensure that the binaries for officially supported platforms exists. -->
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<Error Text="$(RegorusFFIArtifactsDir)/x86_64-pc-windows-msvc/release/regorus_ffi.dll missing."
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Condition="!Exists('$(RegorusFFIArtifactsDir)/x86_64-pc-windows-msvc/release/regorus_ffi.dll')" />
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<Error Text="$(RegorusFFIArtifactsDir)/x86_64-pc-windows-msvc/release/regorus_ffi.pdb missing."
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Condition="!Exists('$(RegorusFFIArtifactsDir)/x86_64-pc-windows-msvc/release/regorus_ffi.pdb')" />
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<Error Text="$(RegorusFFIArtifactsDir)/x86_64-unknown-linux-gnu/release/libregorus_ffi.so missing."
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Condition="!Exists('$(RegorusFFIArtifactsDir)/x86_64-unknown-linux-gnu/release/libregorus_ffi.so')" />
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</Target>
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<ItemGroup>
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<None Include="docs/README.md" Pack="true" PackagePath="/" />
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<!-- Copy each binary to expected location within the package -->
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<None Include="$(RegorusFFIArtifactsDir)/x86_64-pc-windows-msvc/release/*.dll" Pack="true" PackagePath="runtimes/win-x64/native/" />
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<None Include="$(RegorusFFIArtifactsDir)/x86_64-pc-windows-msvc/release/*.pdb" Pack="true" PackagePath="runtimes/win-x64/native/" />
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<None Include="$(RegorusFFIArtifactsDir)/aarch64-pc-windows-msvc/release/*.dll" Pack="true" PackagePath="runtimes/win-arm64/native/" />
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<None Include="$(RegorusFFIArtifactsDir)/aarch64-pc-windows-msvc/release/*.pdb" Pack="true" PackagePath="runtimes/win-arm64/native/" />
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<None Include="$(RegorusFFIArtifactsDir)/x86_64-unknown-linux-gnu/release/lib*.so" Pack="true" PackagePath="runtimes/linux-x64/native/" />
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<None Include="$(RegorusFFIArtifactsDir)/aarch64-apple-darwin/release/lib*.dylib" Pack="true" PackagePath="runtimes/osx-arm64/native/" />
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</ItemGroup>
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</Project>
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219
bindings/csharp/Regorus/RegorusFFI.cs
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219
bindings/csharp/Regorus/RegorusFFI.cs
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// <auto-generated>
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// This code is generated by csbindgen.
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// DON'T CHANGE THIS DIRECTLY.
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// </auto-generated>
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#pragma warning disable CS8500
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#pragma warning disable CS8981
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using System;
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using System.Runtime.InteropServices;
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namespace Regorus.Internal
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{
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internal static unsafe partial class API
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{
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const string __DllName = "regorus_ffi";
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/// <summary>
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/// Drop a `RegorusResult`.
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///
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/// `output` and `error_message` strings are not valid after drop.
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/// </summary>
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[DllImport(__DllName, EntryPoint = "regorus_result_drop", CallingConvention = CallingConvention.Cdecl, ExactSpelling = true)]
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internal static extern void regorus_result_drop(RegorusResult r);
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/// <summary>
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/// Construct a new Engine
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///
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/// See https://docs.rs/regorus/latest/regorus/struct.Engine.html
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/// </summary>
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[DllImport(__DllName, EntryPoint = "regorus_engine_new", CallingConvention = CallingConvention.Cdecl, ExactSpelling = true)]
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internal static extern RegorusEngine* regorus_engine_new();
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/// <summary>
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/// Clone a [`RegorusEngine`]
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///
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/// To avoid having to parse same policy again, the engine can be cloned
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/// after policies and data have been added.
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///
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/// </summary>
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[DllImport(__DllName, EntryPoint = "regorus_engine_clone", CallingConvention = CallingConvention.Cdecl, ExactSpelling = true)]
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internal static extern RegorusEngine* regorus_engine_clone(RegorusEngine* engine);
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[DllImport(__DllName, EntryPoint = "regorus_engine_drop", CallingConvention = CallingConvention.Cdecl, ExactSpelling = true)]
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internal static extern void regorus_engine_drop(RegorusEngine* engine);
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/// <summary>
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/// Add a policy
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///
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/// The policy is parsed into AST.
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/// See https://docs.rs/regorus/latest/regorus/struct.Engine.html#method.add_policy
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///
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/// * `path`: A filename to be associated with the policy.
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/// * `rego`: Rego policy.
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/// </summary>
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[DllImport(__DllName, EntryPoint = "regorus_engine_add_policy", CallingConvention = CallingConvention.Cdecl, ExactSpelling = true)]
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internal static extern RegorusResult regorus_engine_add_policy(RegorusEngine* engine, byte* path, byte* rego);
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[DllImport(__DllName, EntryPoint = "regorus_engine_add_policy_from_file", CallingConvention = CallingConvention.Cdecl, ExactSpelling = true)]
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internal static extern RegorusResult regorus_engine_add_policy_from_file(RegorusEngine* engine, byte* path);
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/// <summary>
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/// Add policy data.
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///
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/// See https://docs.rs/regorus/latest/regorus/struct.Engine.html#method.add_data
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/// * `data`: JSON encoded value to be used as policy data.
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/// </summary>
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[DllImport(__DllName, EntryPoint = "regorus_engine_add_data_json", CallingConvention = CallingConvention.Cdecl, ExactSpelling = true)]
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internal static extern RegorusResult regorus_engine_add_data_json(RegorusEngine* engine, byte* data);
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/// <summary>
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/// Get list of loaded Rego packages as JSON.
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///
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/// See https://docs.rs/regorus/latest/regorus/struct.Engine.html#method.get_packages
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/// </summary>
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[DllImport(__DllName, EntryPoint = "regorus_engine_get_packages", CallingConvention = CallingConvention.Cdecl, ExactSpelling = true)]
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internal static extern RegorusResult regorus_engine_get_packages(RegorusEngine* engine);
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/// <summary>
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/// Get list of policies as JSON.
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///
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/// See https://docs.rs/regorus/latest/regorus/struct.Engine.html#method.get_policies
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/// </summary>
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[DllImport(__DllName, EntryPoint = "regorus_engine_get_policies", CallingConvention = CallingConvention.Cdecl, ExactSpelling = true)]
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internal static extern RegorusResult regorus_engine_get_policies(RegorusEngine* engine);
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[DllImport(__DllName, EntryPoint = "regorus_engine_add_data_from_json_file", CallingConvention = CallingConvention.Cdecl, ExactSpelling = true)]
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internal static extern RegorusResult regorus_engine_add_data_from_json_file(RegorusEngine* engine, byte* path);
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/// <summary>
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/// Clear policy data.
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||||
///
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||||
/// See https://docs.rs/regorus/latest/regorus/struct.Engine.html#method.clear_data
|
||||
/// </summary>
|
||||
[DllImport(__DllName, EntryPoint = "regorus_engine_clear_data", CallingConvention = CallingConvention.Cdecl, ExactSpelling = true)]
|
||||
internal static extern RegorusResult regorus_engine_clear_data(RegorusEngine* engine);
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||||
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||||
/// <summary>
|
||||
/// Set input.
|
||||
///
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||||
/// See https://docs.rs/regorus/latest/regorus/struct.Engine.html#method.set_input
|
||||
/// * `input`: JSON encoded value to be used as input to query.
|
||||
/// </summary>
|
||||
[DllImport(__DllName, EntryPoint = "regorus_engine_set_input_json", CallingConvention = CallingConvention.Cdecl, ExactSpelling = true)]
|
||||
internal static extern RegorusResult regorus_engine_set_input_json(RegorusEngine* engine, byte* input);
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[DllImport(__DllName, EntryPoint = "regorus_engine_set_input_from_json_file", CallingConvention = CallingConvention.Cdecl, ExactSpelling = true)]
|
||||
internal static extern RegorusResult regorus_engine_set_input_from_json_file(RegorusEngine* engine, byte* path);
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||||
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||||
/// <summary>
|
||||
/// Evaluate query.
|
||||
///
|
||||
/// See https://docs.rs/regorus/latest/regorus/struct.Engine.html#method.eval_query
|
||||
/// * `query`: Rego expression to be evaluate.
|
||||
/// </summary>
|
||||
[DllImport(__DllName, EntryPoint = "regorus_engine_eval_query", CallingConvention = CallingConvention.Cdecl, ExactSpelling = true)]
|
||||
internal static extern RegorusResult regorus_engine_eval_query(RegorusEngine* engine, byte* query);
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||||
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||||
/// <summary>
|
||||
/// Evaluate specified rule.
|
||||
///
|
||||
/// See https://docs.rs/regorus/latest/regorus/struct.Engine.html#method.eval_rule
|
||||
/// * `rule`: Path to the rule.
|
||||
/// </summary>
|
||||
[DllImport(__DllName, EntryPoint = "regorus_engine_eval_rule", CallingConvention = CallingConvention.Cdecl, ExactSpelling = true)]
|
||||
internal static extern RegorusResult regorus_engine_eval_rule(RegorusEngine* engine, byte* rule);
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||||
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||||
/// <summary>
|
||||
/// Enable/disable coverage.
|
||||
///
|
||||
/// See https://docs.rs/regorus/latest/regorus/struct.Engine.html#method.set_enable_coverage
|
||||
/// * `enable`: Whether to enable or disable coverage.
|
||||
/// </summary>
|
||||
[DllImport(__DllName, EntryPoint = "regorus_engine_set_enable_coverage", CallingConvention = CallingConvention.Cdecl, ExactSpelling = true)]
|
||||
internal static extern RegorusResult regorus_engine_set_enable_coverage(RegorusEngine* engine, [MarshalAs(UnmanagedType.U1)] bool enable);
|
||||
|
||||
/// <summary>
|
||||
/// Get coverage report.
|
||||
///
|
||||
/// See https://docs.rs/regorus/latest/regorus/struct.Engine.html#method.get_coverage_report
|
||||
/// </summary>
|
||||
[DllImport(__DllName, EntryPoint = "regorus_engine_get_coverage_report", CallingConvention = CallingConvention.Cdecl, ExactSpelling = true)]
|
||||
internal static extern RegorusResult regorus_engine_get_coverage_report(RegorusEngine* engine);
|
||||
|
||||
/// <summary>
|
||||
/// Get pretty printed coverage report.
|
||||
///
|
||||
/// See https://docs.rs/regorus/latest/regorus/coverage/struct.Report.html#method.to_string_pretty
|
||||
/// </summary>
|
||||
[DllImport(__DllName, EntryPoint = "regorus_engine_get_coverage_report_pretty", CallingConvention = CallingConvention.Cdecl, ExactSpelling = true)]
|
||||
internal static extern RegorusResult regorus_engine_get_coverage_report_pretty(RegorusEngine* engine);
|
||||
|
||||
/// <summary>
|
||||
/// Clear coverage data.
|
||||
///
|
||||
/// See https://docs.rs/regorus/latest/regorus/struct.Engine.html#method.clear_coverage_data
|
||||
/// </summary>
|
||||
[DllImport(__DllName, EntryPoint = "regorus_engine_clear_coverage_data", CallingConvention = CallingConvention.Cdecl, ExactSpelling = true)]
|
||||
internal static extern RegorusResult regorus_engine_clear_coverage_data(RegorusEngine* engine);
|
||||
|
||||
/// <summary>
|
||||
/// Whether to gather output of print statements.
|
||||
///
|
||||
/// See https://docs.rs/regorus/latest/regorus/struct.Engine.html#method.set_gather_prints
|
||||
/// * `enable`: Whether to enable or disable gathering print statements.
|
||||
/// </summary>
|
||||
[DllImport(__DllName, EntryPoint = "regorus_engine_set_gather_prints", CallingConvention = CallingConvention.Cdecl, ExactSpelling = true)]
|
||||
internal static extern RegorusResult regorus_engine_set_gather_prints(RegorusEngine* engine, [MarshalAs(UnmanagedType.U1)] bool enable);
|
||||
|
||||
/// <summary>
|
||||
/// Take all the gathered print statements.
|
||||
///
|
||||
/// See https://docs.rs/regorus/latest/regorus/struct.Engine.html#method.take_prints
|
||||
/// </summary>
|
||||
[DllImport(__DllName, EntryPoint = "regorus_engine_take_prints", CallingConvention = CallingConvention.Cdecl, ExactSpelling = true)]
|
||||
internal static extern RegorusResult regorus_engine_take_prints(RegorusEngine* engine);
|
||||
|
||||
/// <summary>
|
||||
/// Get AST of policies.
|
||||
///
|
||||
/// See https://docs.rs/regorus/latest/regorus/coverage/struct.Engine.html#method.get_ast_as_json
|
||||
/// </summary>
|
||||
[DllImport(__DllName, EntryPoint = "regorus_engine_get_ast_as_json", CallingConvention = CallingConvention.Cdecl, ExactSpelling = true)]
|
||||
internal static extern RegorusResult regorus_engine_get_ast_as_json(RegorusEngine* engine);
|
||||
|
||||
/// <summary>
|
||||
/// Enable/disable rego v1.
|
||||
///
|
||||
/// See https://docs.rs/regorus/latest/regorus/struct.Engine.html#method.set_rego_v0
|
||||
/// </summary>
|
||||
[DllImport(__DllName, EntryPoint = "regorus_engine_set_rego_v0", CallingConvention = CallingConvention.Cdecl, ExactSpelling = true)]
|
||||
internal static extern RegorusResult regorus_engine_set_rego_v0(RegorusEngine* engine, [MarshalAs(UnmanagedType.U1)] bool enable);
|
||||
|
||||
|
||||
}
|
||||
|
||||
[StructLayout(LayoutKind.Sequential)]
|
||||
internal unsafe partial struct RegorusResult
|
||||
{
|
||||
public RegorusStatus status;
|
||||
public byte* output;
|
||||
public byte* error_message;
|
||||
}
|
||||
|
||||
[StructLayout(LayoutKind.Sequential)]
|
||||
internal unsafe partial struct RegorusEngine
|
||||
{
|
||||
}
|
||||
|
||||
|
||||
internal enum RegorusStatus : uint
|
||||
{
|
||||
RegorusStatusOk,
|
||||
RegorusStatusError,
|
||||
}
|
||||
|
||||
|
||||
}
|
||||
1
bindings/csharp/Regorus/docs/README.md
Normal file
1
bindings/csharp/Regorus/docs/README.md
Normal file
@@ -0,0 +1 @@
|
||||
C# Bindings for Regorus
|
||||
Reference in New Issue
Block a user