public static IEnumerable <ProofState> EvalPredicateStmt(PredicateStmt predicate, ProofState state)
{
Contract.Requires <ArgumentNullException>(predicate != null, "predicate");
foreach (var result in EvalTacnyExpression(state, predicate.Expr))
{
var resultExpression = result is IVariable?Util.VariableToExpression(result as IVariable) : result as Expression;
PredicateStmt newPredicate;
var tok = predicate.Tok.Copy();
tok.line = TACNY_CODE_TOK_LINE;
var endTok = predicate.EndTok.Copy();
endTok.line = TACNY_CODE_TOK_LINE;
if (predicate is AssertStmt)
{
newPredicate = new AssertStmt(tok, endTok, resultExpression, predicate.Attributes);
}
else
{
newPredicate = new AssumeStmt(tok, endTok, resultExpression, predicate.Attributes);
}
var copy = state.Copy();
copy.AddStatement(newPredicate);
copy.IfVerify = true;
yield return(copy);
}
}
public static IEnumerable <ProofState> EvalPredicateStmt(PredicateStmt predicate, ProofState state)
{
Contract.Requires <ArgumentNullException>(predicate != null, "predicate");
var newPredicate = SimpExpr.SimpTacticExpr(state, predicate);
var copy = state.Copy();
copy.AddStatement(newPredicate);
copy.NeedVerify = true;
yield return(copy);
}
private static IEnumerable <ProofState> ResolvePredicateStmt(PredicateStmt predicate, ProofState state)
{
Contract.Requires <ArgumentNullException>(predicate != null, "predicate");
foreach (var result in EvaluateTacnyExpression(state, predicate.Expr))
{
var resultExpression = result is IVariable?Util.VariableToExpression(result as IVariable) : result as Expression;
PredicateStmt newPredicate;
if (predicate is AssertStmt)
{
newPredicate = new AssertStmt(predicate.Tok, predicate.EndTok, resultExpression, predicate.Attributes);
}
else
{
newPredicate = new AssumeStmt(predicate.Tok, predicate.EndTok, resultExpression, predicate.Attributes);
}
var copy = state.Copy();
copy.AddStatement(newPredicate);
yield return(copy);
}
}
private static IEnumerable<ProofState> ResolvePredicateStmt(PredicateStmt predicate, ProofState state) {
Contract.Requires<ArgumentNullException>(predicate != null, "predicate");
foreach (var result in EvaluateTacnyExpression(state, predicate.Expr)) {
var resultExpression = result is IVariable ? Util.VariableToExpression(result as IVariable) : result as Expression;
PredicateStmt newPredicate;
if (predicate is AssertStmt) {
newPredicate = new AssertStmt(predicate.Tok, predicate.EndTok, resultExpression, predicate.Attributes);
} else {
newPredicate = new AssumeStmt(predicate.Tok, predicate.EndTok, resultExpression, predicate.Attributes);
}
var copy = state.Copy();
copy.AddStatement(newPredicate);
yield return copy;
}
}
public static IEnumerable<ProofState> EvalPredicateStmt(PredicateStmt predicate, ProofState state) {
Contract.Requires<ArgumentNullException>(predicate != null, "predicate");
foreach(var result in EvalTacnyExpression(state, predicate.Expr)) {
var resultExpression = result is IVariable ? Util.VariableToExpression(result as IVariable) : result as Expression;
PredicateStmt newPredicate;
var tok = predicate.Tok.Copy();
tok.line = TACNY_CODE_TOK_LINE;
var endTok = predicate.EndTok.Copy();
endTok.line = TACNY_CODE_TOK_LINE;
if(predicate is AssertStmt) {
newPredicate = new AssertStmt(tok, endTok, resultExpression, predicate.Attributes);
} else {
newPredicate = new AssumeStmt(tok, endTok, resultExpression, predicate.Attributes);
}
var copy = state.Copy();
copy.AddStatement(newPredicate);
copy.IfVerify = true;
yield return copy;
}
}
