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s=0;s<r;s++)if(!this.params[s].name&&!this.params[s].variadic&&e[s].value.eval(t).toCSS()!=this.params[s].value.eval(t).toCSS())return!1;return!0}}}(n("../tree")),function(e){e.Negative=function(e){this.value=e},e.Negative.prototype={type:"Negative",accept:function(e){this.value=e.visit(this.value)},toCSS:function(e){return"-"+this.value.toCSS(e)},eval:function(t){return t.isMathOn()?(new e.Operation("*",[new e.Dimension(-1),this.value])).eval(t):new e.Negative(this.value.eval(t))}}}(n("../tree")),function(e){e.Operation=function(e,t,n){this.op=e.trim(),this.operands=t,this.isSpaced=n},e.Operation.prototype={type:"Operation",accept:function(e){this.operands=e.visit(this.operands)},eval:function(t){var n=this.operands[0].eval(t),r=this.operands[1].eval(t),i;if(t.isMathOn()){if(n instanceof e.Dimension&&r instanceof e.Color){if(this.op!=="*"&&this.op!=="+")throw{type:"Operation",message:"Can't substract or divide a color from a 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