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remove dependencies on contracts

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2018-10-20 10:24:36 -07:00
parent 12fc670839
commit 3d37060fa9
72 changed files with 734 additions and 1232 deletions
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30
src/api/dotnet/Solver.cs
View file

@ -18,16 +18,15 @@ Notes:
--*/
using System;
using System.Diagnostics;
using System.Linq;
using System.Collections.Generic;
using System.Diagnostics.Contracts;
namespace Microsoft.Z3
{
/// <summary>
/// Solvers.
/// </summary>
[ContractVerification(true)]
public class Solver : Z3Object
{
/// <summary>
@ -37,7 +36,6 @@ namespace Microsoft.Z3
{
get
{
Contract.Ensures(Contract.Result<string>() != null);
return Native.Z3_solver_get_help(Context.nCtx, NativeObject);
}
@ -50,7 +48,7 @@ namespace Microsoft.Z3
{
set
{
Contract.Requires(value != null);
Debug.Assert(value != null);
Context.CheckContextMatch(value);
Native.Z3_solver_set_params(Context.nCtx, NativeObject, value.NativeObject);
@ -152,8 +150,8 @@ namespace Microsoft.Z3
/// </summary>
public void Assert(params BoolExpr[] constraints)
{
Contract.Requires(constraints != null);
Contract.Requires(Contract.ForAll(constraints, c => c != null));
Debug.Assert(constraints != null);
Debug.Assert(constraints.All(c => c != null));
Context.CheckContextMatch<BoolExpr>(constraints);
foreach (BoolExpr a in constraints)
@ -191,9 +189,9 @@ namespace Microsoft.Z3
/// </remarks>
public void AssertAndTrack(BoolExpr[] constraints, BoolExpr[] ps)
{
Contract.Requires(constraints != null);
Contract.Requires(Contract.ForAll(constraints, c => c != null));
Contract.Requires(Contract.ForAll(ps, c => c != null));
Debug.Assert(constraints != null);
Debug.Assert(constraints.All(c => c != null));
Debug.Assert(ps.All(c => c != null));
Context.CheckContextMatch<BoolExpr>(constraints);
Context.CheckContextMatch<BoolExpr>(ps);
if (constraints.Length != ps.Length)
@ -216,8 +214,8 @@ namespace Microsoft.Z3
/// </remarks>
public void AssertAndTrack(BoolExpr constraint, BoolExpr p)
{
Contract.Requires(constraint != null);
Contract.Requires(p != null);
Debug.Assert(constraint != null);
Debug.Assert(p != null);
Context.CheckContextMatch(constraint);
Context.CheckContextMatch(p);
@ -259,7 +257,6 @@ namespace Microsoft.Z3
{
get
{
Contract.Ensures(Contract.Result<BoolExpr[]>() != null);
ASTVector assertions = new ASTVector(Context, Native.Z3_solver_get_assertions(Context.nCtx, NativeObject));
return assertions.ToBoolExprArray();
@ -273,7 +270,6 @@ namespace Microsoft.Z3
{
get
{
Contract.Ensures(Contract.Result<BoolExpr[]>() != null);
ASTVector assertions = new ASTVector(Context, Native.Z3_solver_get_units(Context.nCtx, NativeObject));
return assertions.ToBoolExprArray();
@ -394,7 +390,6 @@ namespace Microsoft.Z3
{
get
{
Contract.Ensures(Contract.Result<Expr[]>() != null);
ASTVector core = new ASTVector(Context, Native.Z3_solver_get_unsat_core(Context.nCtx, NativeObject));
return core.ToBoolExprArray();
@ -408,7 +403,6 @@ namespace Microsoft.Z3
{
get
{
Contract.Ensures(Contract.Result<string>() != null);
return Native.Z3_solver_get_reason_unknown(Context.nCtx, NativeObject);
}
@ -455,8 +449,7 @@ namespace Microsoft.Z3
/// </summary>
public Solver Translate(Context ctx)
{
Contract.Requires(ctx != null);
Contract.Ensures(Contract.Result<Solver>() != null);
Debug.Assert(ctx != null);
return new Solver(ctx, Native.Z3_solver_translate(Context.nCtx, NativeObject, ctx.nCtx));
}
@ -475,7 +468,6 @@ namespace Microsoft.Z3
{
get
{
Contract.Ensures(Contract.Result<Statistics>() != null);
return new Statistics(Context, Native.Z3_solver_get_statistics(Context.nCtx, NativeObject));
}
@ -493,7 +485,7 @@ namespace Microsoft.Z3
internal Solver(Context ctx, IntPtr obj)
: base(ctx, obj)
{
Contract.Requires(ctx != null);
Debug.Assert(ctx != null);
this.BacktrackLevel = uint.MaxValue;
}