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"use strict";
Object.defineProperty(exports, "__esModule", {
value: true
});
exports.default = _default;
const order = {
"*": 0,
"/": 0,
"+": 1,
"-": 1
};
function round(value, prec) {
if (prec !== false) {
const precision = Math.pow(10, prec);
return Math.round(value * precision) / precision;
}
return value;
}
function stringify(node, prec) {
switch (node.type) {
case "MathExpression":
{
const {
left,
right,
operator: op
} = node;
let str = "";
if (left.type === 'MathExpression' && order[op] < order[left.operator]) {
str += `(${stringify(left, prec)})`;
} else {
str += stringify(left, prec);
}
str += order[op] ? ` ${node.operator} ` : node.operator;
if (right.type === 'MathExpression' && order[op] < order[right.operator]) {
str += `(${stringify(right, prec)})`;
} else {
str += stringify(right, prec);
}
return str;
}
case 'Number':
return round(node.value, prec);
case 'Function':
return node.value;
default:
return round(node.value, prec) + node.unit;
}
}
function _default(calc, node, originalValue, options, result, item) {
let str = stringify(node, options.precision);
const shouldPrintCalc = node.type === "MathExpression" || node.type === "Function";
if (shouldPrintCalc) {
// if calc expression couldn't be resolved to a single value, re-wrap it as
// a calc()
str = `${calc}(${str})`; // if the warnWhenCannotResolve option is on, inform the user that the calc
// expression could not be resolved to a single value
if (options.warnWhenCannotResolve) {
result.warn("Could not reduce expression: " + originalValue, {
plugin: 'postcss-calc',
node: item
});
}
}
return str;
}
module.exports = exports.default;