use of kodkod.ast.IfIntExpression 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;
}
use of kodkod.ast.IfIntExpression in project org.alloytools.alloy by AlloyTools.
the class AbstractReplacer method visit.
/**
* Calls lookup(intExpr) and returns the cached value, if any. If a replacement
* has not been cached, visits the expression's children. If nothing changes,
* the argument is cached and returned, otherwise a replacement expression is
* cached and returned.
*
* @return { i: IfIntExpression | i.condition =
* intExpr.condition.accept(delegate) && i.thenExpr =
* intExpr.thenExpr.accept(delegate) && i.elseExpr =
* intExpr.elseExpr.accept(delegate) }
*/
@Override
public IntExpression visit(IfIntExpression intExpr) {
IntExpression ret = lookup(intExpr);
if (ret != null)
return ret;
final Formula condition = intExpr.condition().accept(delegate);
final IntExpression thenExpr = intExpr.thenExpr().accept(delegate);
final IntExpression elseExpr = intExpr.elseExpr().accept(delegate);
ret = (condition == intExpr.condition() && thenExpr == intExpr.thenExpr() && elseExpr == intExpr.elseExpr()) ? intExpr : condition.thenElse(thenExpr, elseExpr);
return cache(intExpr, ret);
}
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