forked from prettier/prettier
/
html-binding.js
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/
html-binding.js
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"use strict";
const {
builders: { concat, join, line }
} = require("../doc");
function printHtmlBinding(path, options, print) {
const node = path.getValue();
if (options.__onHtmlBindingRoot && path.getName() === null) {
options.__onHtmlBindingRoot(node);
}
if (node.type !== "File") {
return;
}
if (options.__isVueForBindingLeft) {
return path.call(
functionDeclarationPath => {
const { params } = functionDeclarationPath.getValue();
return concat([
params.length > 1 ? "(" : "",
join(
concat([",", line]),
functionDeclarationPath.map(print, "params")
),
params.length > 1 ? ")" : ""
]);
},
"program",
"body",
0
);
}
if (options.__isVueSlotScope) {
return path.call(
functionDeclarationPath =>
join(concat([",", line]), functionDeclarationPath.map(print, "params")),
"program",
"body",
0
);
}
}
// based on https://github.com/prettier/prettier/blob/master/src/language-html/syntax-vue.js isVueEventBindingExpression()
function isVueEventBindingExpression(node) {
switch (node.type) {
case "MemberExpression":
switch (node.property.type) {
case "Identifier":
case "NumericLiteral":
case "StringLiteral":
return isVueEventBindingExpression(node.object);
}
return false;
case "Identifier":
return true;
default:
return false;
}
}
module.exports = {
isVueEventBindingExpression,
printHtmlBinding
};