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Dispose of intermediate Z3Objects created in dotnet api. (#5901)

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* Dispose of intermediate Z3Objects created in dotnet api.

* Set C# LangVersion to 8.0.

* Fix build errors.

* Fix warning about empty using statement.

* Fix Xor to only dispose of objects that it creates internally.
This commit is contained in:
Matt Thornton 2022-03-17 15:08:05 +00:00 • committed by GitHub
parent bdf7de1703
commit 4e0a2f5968
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GPG key ID: 4AEE18F83AFDEB23
13 changed files with 360 additions and 142 deletions
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87
src/api/dotnet/Solver.cs
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@ -58,43 +58,92 @@ namespace Microsoft.Z3
/// <summary>
/// Sets parameter on the solver
/// </summary>
public void Set(string name, bool value) { Parameters = Context.MkParams().Add(name, value); }
public void Set(string name, bool value)
{
using var parameters = Context.MkParams().Add(name, value);
Parameters = parameters;
}
/// <summary>
/// Sets parameter on the solver
/// </summary>
public void Set(string name, uint value) { Parameters = Context.MkParams().Add(name, value); }
public void Set(string name, uint value)
{
using var parameters = Context.MkParams().Add(name, value);
Parameters = parameters;
}
/// <summary>
/// Sets parameter on the solver
/// </summary>
public void Set(string name, double value) { Parameters = Context.MkParams().Add(name, value); }
public void Set(string name, double value)
{
using var parameters = Context.MkParams().Add(name, value);
Parameters = parameters;
}
/// <summary>
/// Sets parameter on the solver
/// </summary>
public void Set(string name, string value) { Parameters = Context.MkParams().Add(name, value); }
public void Set(string name, string value)
{
using var parameters = Context.MkParams().Add(name, value);
Parameters = parameters;
}
/// <summary>
/// Sets parameter on the solver
/// </summary>
public void Set(string name, Symbol value) { Parameters = Context.MkParams().Add(name, value); }
public void Set(string name, Symbol value)
{
using var parameters = Context.MkParams().Add(name, value);
Parameters = parameters;
}
/// <summary>
/// Sets parameter on the solver
/// </summary>
public void Set(Symbol name, bool value) { Parameters = Context.MkParams().Add(name, value); }
public void Set(Symbol name, bool value)
{
using var parameters = Context.MkParams().Add(name, value);
Parameters = parameters;
}
/// <summary>
/// Sets parameter on the solver
/// </summary>
public void Set(Symbol name, uint value) { Parameters = Context.MkParams().Add(name, value); }
public void Set(Symbol name, uint value)
{
using var parameters = Context.MkParams().Add(name, value);
Parameters = parameters;
}
/// <summary>
/// Sets parameter on the solver
/// </summary>
public void Set(Symbol name, double value) { Parameters = Context.MkParams().Add(name, value); }
public void Set(Symbol name, double value)
{
using var parameters = Context.MkParams().Add(name, value);
Parameters = parameters;
}
/// <summary>
/// Sets parameter on the solver
/// </summary>
public void Set(Symbol name, string value) { Parameters = Context.MkParams().Add(name, value); }
public void Set(Symbol name, string value)
{
using var parameters = Context.MkParams().Add(name, value);
Parameters = parameters;
}
/// <summary>
/// Sets parameter on the solver
/// </summary>
public void Set(Symbol name, Symbol value) { Parameters = Context.MkParams().Add(name, value); }
public void Set(Symbol name, Symbol value)
{
using var parameters = Context.MkParams().Add(name, value);
Parameters = parameters;
}
@ -245,7 +294,7 @@ namespace Microsoft.Z3
{
get
{
ASTVector assertions = new ASTVector(Context, Native.Z3_solver_get_assertions(Context.nCtx, NativeObject));
using ASTVector assertions = new ASTVector(Context, Native.Z3_solver_get_assertions(Context.nCtx, NativeObject));
return assertions.Size;
}
}
@ -258,7 +307,7 @@ namespace Microsoft.Z3
get
{
ASTVector assertions = new ASTVector(Context, Native.Z3_solver_get_assertions(Context.nCtx, NativeObject));
using ASTVector assertions = new ASTVector(Context, Native.Z3_solver_get_assertions(Context.nCtx, NativeObject));
return assertions.ToBoolExprArray();
}
}
@ -271,7 +320,7 @@ namespace Microsoft.Z3
get
{
ASTVector assertions = new ASTVector(Context, Native.Z3_solver_get_units(Context.nCtx, NativeObject));
using ASTVector assertions = new ASTVector(Context, Native.Z3_solver_get_units(Context.nCtx, NativeObject));
return assertions.ToBoolExprArray();
}
}
@ -330,9 +379,9 @@ namespace Microsoft.Z3
/// </remarks>
public Status Consequences(IEnumerable<BoolExpr> assumptions, IEnumerable<Expr> variables, out BoolExpr[] consequences)
{
ASTVector result = new ASTVector(Context);
ASTVector asms = new ASTVector(Context);
ASTVector vars = new ASTVector(Context);
using ASTVector result = new ASTVector(Context);
using ASTVector asms = new ASTVector(Context);
using ASTVector vars = new ASTVector(Context);
foreach (var asm in assumptions) asms.Push(asm);
foreach (var v in variables) vars.Push(v);
Z3_lbool r = (Z3_lbool)Native.Z3_solver_get_consequences(Context.nCtx, NativeObject, asms.NativeObject, vars.NativeObject, result.NativeObject);
@ -391,7 +440,7 @@ namespace Microsoft.Z3
get
{
ASTVector core = new ASTVector(Context, Native.Z3_solver_get_unsat_core(Context.nCtx, NativeObject));
using ASTVector core = new ASTVector(Context, Native.Z3_solver_get_unsat_core(Context.nCtx, NativeObject));
return core.ToBoolExprArray();
}
}
@ -424,14 +473,14 @@ namespace Microsoft.Z3
/// </summary>
public IEnumerable<BoolExpr[]> Cube()
{
ASTVector cv = new ASTVector(Context);
using ASTVector cv = new ASTVector(Context);
if (CubeVariables != null)
foreach (var b in CubeVariables) cv.Push(b);
while (true) {
var lvl = BacktrackLevel;
BacktrackLevel = uint.MaxValue;
ASTVector r = new ASTVector(Context, Native.Z3_solver_cube(Context.nCtx, NativeObject, cv.NativeObject, lvl));
using ASTVector r = new ASTVector(Context, Native.Z3_solver_cube(Context.nCtx, NativeObject, cv.NativeObject, lvl));
var v = r.ToBoolExprArray();
CubeVariables = cv.ToBoolExprArray();
if (v.Length == 1 && v[0].IsFalse) {