use of kodkod.ast.MultiplicityFormula in project org.alloytools.alloy by AlloyTools.
the class Skolemizer method visit.
/**
* Calls super.visit(mf) after disabling skolemization and returns the result.
*
* @return super.visit(mf)
*/
@Override
public final Formula visit(MultiplicityFormula mf) {
final int oldDepth = skolemDepth;
// cannot skolemize inside a multiplicity formula
skolemDepth = -1;
final Formula ret = super.visit(mf);
skolemDepth = oldDepth;
return source(ret, mf);
}
use of kodkod.ast.MultiplicityFormula in project org.alloytools.alloy by AlloyTools.
the class AbstractReplacer method visit.
/**
* Calls lookup(multFormula) and returns the cached value, if any. If a
* replacement has not been cached, visits the formula's children. If nothing
* changes, the argument is cached and returned, otherwise a replacement formula
* is cached and returned.
*
* @return { m: MultiplicityFormula | m.multiplicity = multFormula.multiplicity
* && m.expression = multFormula.expression.accept(delegate) }
*/
@Override
public Formula visit(MultiplicityFormula multFormula) {
Formula ret = lookup(multFormula);
if (ret != null)
return ret;
final Expression expression = multFormula.expression().accept(delegate);
ret = (expression == multFormula.expression()) ? multFormula : expression.apply(multFormula.multiplicity());
return cache(multFormula, ret);
}
use of kodkod.ast.MultiplicityFormula in project org.alloytools.alloy by AlloyTools.
the class TranslateKodkodToJava method countHeight.
/**
* Count the height of the given Kodkod AST tree.
*/
public static int countHeight(Node node) {
ReturnVisitor<Integer, Integer, Integer, Integer> vis = new ReturnVisitor<Integer, Integer, Integer, Integer>() {
private int max(int a, int b) {
return (a >= b) ? a : b;
}
private int max(int a, int b, int c) {
return (a >= b) ? (a >= c ? a : c) : (b >= c ? b : c);
}
@Override
public Integer visit(Relation x) {
return 1;
}
@Override
public Integer visit(IntConstant x) {
return 1;
}
@Override
public Integer visit(ConstantFormula x) {
return 1;
}
@Override
public Integer visit(Variable x) {
return 1;
}
@Override
public Integer visit(ConstantExpression x) {
return 1;
}
@Override
public Integer visit(NotFormula x) {
return 1 + x.formula().accept(this);
}
@Override
public Integer visit(IntToExprCast x) {
return 1 + x.intExpr().accept(this);
}
@Override
public Integer visit(Decl x) {
return 1 + x.expression().accept(this);
}
@Override
public Integer visit(ExprToIntCast x) {
return 1 + x.expression().accept(this);
}
@Override
public Integer visit(UnaryExpression x) {
return 1 + x.expression().accept(this);
}
@Override
public Integer visit(UnaryIntExpression x) {
return 1 + x.intExpr().accept(this);
}
@Override
public Integer visit(MultiplicityFormula x) {
return 1 + x.expression().accept(this);
}
@Override
public Integer visit(BinaryExpression x) {
return 1 + max(x.left().accept(this), x.right().accept(this));
}
@Override
public Integer visit(ComparisonFormula x) {
return 1 + max(x.left().accept(this), x.right().accept(this));
}
@Override
public Integer visit(BinaryFormula x) {
return 1 + max(x.left().accept(this), x.right().accept(this));
}
@Override
public Integer visit(BinaryIntExpression x) {
return 1 + max(x.left().accept(this), x.right().accept(this));
}
@Override
public Integer visit(IntComparisonFormula x) {
return 1 + max(x.left().accept(this), x.right().accept(this));
}
@Override
public Integer visit(IfExpression x) {
return 1 + max(x.condition().accept(this), x.thenExpr().accept(this), x.elseExpr().accept(this));
}
@Override
public Integer visit(IfIntExpression x) {
return 1 + max(x.condition().accept(this), x.thenExpr().accept(this), x.elseExpr().accept(this));
}
@Override
public Integer visit(SumExpression x) {
return 1 + max(x.decls().accept(this), x.intExpr().accept(this));
}
@Override
public Integer visit(QuantifiedFormula x) {
return 1 + max(x.decls().accept(this), x.formula().accept(this));
}
@Override
public Integer visit(FixFormula x) {
return 1 + max(x.condition().accept(this), x.formula().accept(this));
}
@Override
public Integer visit(Comprehension x) {
return 1 + max(x.decls().accept(this), x.formula().accept(this));
}
@Override
public Integer visit(Decls x) {
int max = 0, n = x.size();
for (int i = 0; i < n; i++) max = max(max, x.get(i).accept(this));
return max;
}
@Override
public Integer visit(ProjectExpression x) {
int max = x.expression().accept(this);
for (Iterator<IntExpression> t = x.columns(); t.hasNext(); ) {
max = max(max, t.next().accept(this));
}
return max;
}
@Override
public Integer visit(RelationPredicate x) {
if (x instanceof Function) {
Function f = ((Function) x);
return max(f.domain().accept(this), f.range().accept(this));
}
return 1;
}
@Override
public Integer visit(NaryExpression x) {
int max = 0;
for (int m = 0, n = x.size(), i = 0; i < n; i++) {
m = x.child(i).accept(this);
if (i == 0 || max < m)
max = m;
}
return max + 1;
}
@Override
public Integer visit(NaryIntExpression x) {
int max = 0;
for (int m = 0, n = x.size(), i = 0; i < n; i++) {
m = x.child(i).accept(this);
if (i == 0 || max < m)
max = m;
}
return max + 1;
}
@Override
public Integer visit(NaryFormula x) {
int max = 0;
for (int m = 0, n = x.size(), i = 0; i < n; i++) {
m = x.child(i).accept(this);
if (i == 0 || max < m)
max = m;
}
return max + 1;
}
};
Object ans = node.accept(vis);
if (ans instanceof Integer)
return ((Integer) ans).intValue();
else
return 0;
}
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