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index.js
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index.js
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"use strict";
const { utils } = require("stylelint");
const namespace = require("../../utils/namespace");
const ruleUrl = require("../../utils/ruleUrl");
const valueParser = require("postcss-value-parser");
const ruleName = namespace("function-no-interpolation");
const messages = utils.ruleMessages(ruleName, {
rejected: func => `Unexpected interpolation in "${func}".`
});
const meta = {
url: ruleUrl(ruleName)
};
function rule(actual) {
return (root, result) => {
const validOptions = utils.validateOptions(result, ruleName, { actual });
if (!validOptions) {
return;
}
const calculationFunctions = ["calc", "max", "min", "clamp"];
root.walkDecls(decl => {
valueParser(decl.value).walk(node => {
if (node.type !== "function" || node.value === "") {
return;
}
if (
calculationFunctions.includes(node.value) &&
node.nodes.some(
args => args.type === "word" && /^#{.*|\s*}/.test(args.value)
)
) {
utils.report({
message: messages.rejected(node.value),
node: decl,
word: decl.name,
result,
ruleName
});
}
});
});
};
}
rule.ruleName = ruleName;
rule.messages = messages;
rule.meta = meta;
module.exports = rule;