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add user propagator functionality

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This commit is contained in:
Nikolaj Bjorner 2022-05-08 12:43:46 -07:00
parent 1e7a9e3e61
commit 506f8f88aa
2 changed files with 108 additions and 21 deletions
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34
src/api/dotnet/Context.cs
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@ -25,6 +25,8 @@ using System.Runtime.InteropServices;
namespace Microsoft.Z3
{
using Z3_context = System.IntPtr;
/// <summary>
/// The main interaction with Z3 happens via the Context.
/// </summary>
@ -77,6 +79,23 @@ namespace Microsoft.Z3
InitContext();
}
}
/// <summary>
/// Internal Constructor. It is used from UserPropagator
/// </summary>
internal Context(Z3_context ctx)
: base()
{
lock (creation_lock)
{
is_external = true;
m_ctx = ctx;
InitContext();
}
}
bool is_external = false;
#endregion
#region Symbols
@ -669,6 +688,16 @@ namespace Microsoft.Z3
CheckContextMatch(range);
return new FuncDecl(this, prefix, null, range);
}
/// <summary>
/// Declare a function to be processed by the user propagator plugin.
/// </summary>
public FuncDecl MkUserPropagatorFuncDecl(string name, Sort[] domain, Sort range)
{
using var _name = MkSymbol(name);
var fn = Native.Z3_solver_propagate_declare(nCtx, _name.NativeObject, AST.ArrayLength(domain), AST.ArrayToNative(domain), range.NativeObject);
return new FuncDecl(this, fn);
}
#endregion
#region Bound Variables
@ -4978,11 +5007,14 @@ namespace Microsoft.Z3
m_n_err_handler = null;
IntPtr ctx = m_ctx;
m_ctx = IntPtr.Zero;
Native.Z3_del_context(ctx);
if (!is_external)
Native.Z3_del_context(ctx);
}
else
GC.ReRegisterForFinalize(this);
}
#endregion
}
}