147 function Constraint(strength) {  argument
148   this.strength = strength;
169     if (this.strength == Strength.REQUIRED)
206 function UnaryConstraint(v, strength) {  argument
207   UnaryConstraint.superConstructor.call(this, strength);
229     && Strength.stronger(this.strength, this.myOutput.walkStrength);
256   this.myOutput.walkStrength = this.strength;
335 function BinaryConstraint(var1, var2, strength) {  argument
336   BinaryConstraint.superConstructor.call(this, strength);
352 …  this.direction = (this.v1.mark != mark && Strength.stronger(this.strength, this.v2.walkStrength))
357 …  this.direction = (this.v1.mark != mark && Strength.stronger(this.strength, this.v1.walkStrength))
362     this.direction = Strength.stronger(this.strength, this.v1.walkStrength)
366     this.direction = Strength.stronger(this.strength, this.v2.walkStrength)
416   out.walkStrength = Strength.weakestOf(this.strength, ihn.walkStrength);
449 function ScaleConstraint(src, scale, offset, dest, strength) {  argument
453   ScaleConstraint.superConstructor.call(this, src, dest, strength);
496   out.walkStrength = Strength.weakestOf(this.strength, ihn.walkStrength);
508 function EqualityConstraint(var1, var2, strength) {  argument
509   EqualityConstraint.superConstructor.call(this, var1, var2, strength);
605   var strength = Strength.REQUIRED;
609       if (u.strength == strength)
612     strength = strength.nextWeaker();
613   } while (strength != Strength.WEAKEST);