"use strict";
Object.defineProperty(exports, "__esModule", {
value: true
});
exports.default = _default;
var _t = require("@babel/types");
var _helperAnnotateAsPure = require("@babel/helper-annotate-as-pure");
const {
booleanLiteral,
callExpression,
identifier,
inherits,
isIdentifier,
isJSXExpressionContainer,
isJSXIdentifier,
isJSXMemberExpression,
isJSXNamespacedName,
isJSXSpreadAttribute,
isObjectExpression,
isReferenced,
isStringLiteral,
isValidIdentifier,
memberExpression,
nullLiteral,
objectExpression,
objectProperty,
react,
spreadElement,
stringLiteral,
thisExpression
} = _t;
function _default(opts) {
const visitor = {};
visitor.JSXNamespacedName = function (path) {
if (opts.throwIfNamespace) {
throw path.buildCodeFrameError(`Namespace tags are not supported by default. React's JSX doesn't support namespace tags. \
You can set \`throwIfNamespace: false\` to bypass this warning.`);
}
};
visitor.JSXSpreadChild = function (path) {
throw path.buildCodeFrameError("Spread children are not supported in React.");
};
visitor.JSXElement = {
exit(path, state) {
const callExpr = buildElementCall(path, state);
if (callExpr) {
path.replaceWith(inherits(callExpr, path.node));
}
}
};
visitor.JSXFragment = {
exit(path, state) {
if (opts.compat) {
throw path.buildCodeFrameError("Fragment tags are only supported in React 16 and up.");
}
const callExpr = buildFragmentCall(path, state);
if (callExpr) {
path.replaceWith(inherits(callExpr, path.node));
}
}
};
return visitor;
function convertJSXIdentifier(node, parent) {
if (isJSXIdentifier(node)) {
if (node.name === "this" && isReferenced(node, parent)) {
return thisExpression();
} else if (isValidIdentifier(node.name, false)) {
node.type = "Identifier";
return node;
} else {
return stringLiteral(node.name);
}
} else if (isJSXMemberExpression(node)) {
return memberExpression(convertJSXIdentifier(node.object, node), convertJSXIdentifier(node.property, node));
} else if (isJSXNamespacedName(node)) {
return stringLiteral(`${node.namespace.name}:${node.name.name}`);
}
return node;
}
function convertAttributeValue(node) {
if (isJSXExpressionContainer(node)) {
return node.expression;
} else {
return node;
}
}
function convertAttribute(node) {
if (isJSXSpreadAttribute(node)) {
return spreadElement(node.argument);
}
const value = convertAttributeValue(node.value || booleanLiteral(true));
if (isStringLiteral(value) && !isJSXExpressionContainer(node.value)) {
var _value$extra;
value.value = value.value.replace(/\n\s+/g, " ");
(_value$extra = value.extra) == null ? true : delete _value$extra.raw;
}
if (isJSXNamespacedName(node.name)) {
node.name = stringLiteral(node.name.namespace.name + ":" + node.name.name.name);
} else if (isValidIdentifier(node.name.name, false)) {
node.name.type = "Identifier";
} else {
node.name = stringLiteral(node.name.name);
}
return inherits(objectProperty(node.name, value), node);
}
function buildElementCall(path, pass) {
if (opts.filter && !opts.filter(path.node, pass)) return;
const openingPath = path.get("openingElement");
path.node.children = react.buildChildren(path.node);
const tagExpr = convertJSXIdentifier(openingPath.node.name, openingPath.node);
const args = [];
let tagName;
if (isIdentifier(tagExpr)) {
tagName = tagExpr.name;
} else if (isStringLiteral(tagExpr)) {
tagName = tagExpr.value;
}
const state = {
tagExpr: tagExpr,
tagName: tagName,
args: args,
pure: false
};
if (opts.pre) {
opts.pre(state, pass);
}
const attribs = openingPath.node.attributes;
let convertedAttributes;
if (attribs.length) {
{
convertedAttributes = buildOpeningElementAttributes(attribs, pass);
}
} else {
convertedAttributes = nullLiteral();
}
args.push(convertedAttributes, ...path.node.children);
if (opts.post) {
opts.post(state, pass);
}
const call = state.call || callExpression(state.callee, args);
if (state.pure) (0, _helperAnnotateAsPure.default)(call);
return call;
}
function pushProps(_props, objs) {
if (!_props.length) return _props;
objs.push(objectExpression(_props));
return [];
}
function buildOpeningElementAttributes(attribs, pass) {
let _props = [];
const objs = [];
const {
useSpread = false
} = pass.opts;
if (typeof useSpread !== "boolean") {
throw new Error("transform-react-jsx currently only accepts a boolean option for " + "useSpread (defaults to false)");
}
const useBuiltIns = pass.opts.useBuiltIns || false;
if (typeof useBuiltIns !== "boolean") {
throw new Error("transform-react-jsx currently only accepts a boolean option for " + "useBuiltIns (defaults to false)");
}
if (useSpread && useBuiltIns) {
throw new Error("transform-react-jsx currently only accepts useBuiltIns or useSpread " + "but not both");
}
if (useSpread) {
const props = attribs.map(convertAttribute);
return objectExpression(props);
}
while (attribs.length) {
const prop = attribs.shift();
if (isJSXSpreadAttribute(prop)) {
_props = pushProps(_props, objs);
objs.push(prop.argument);
} else {
_props.push(convertAttribute(prop));
}
}
pushProps(_props, objs);
let convertedAttribs;
if (objs.length === 1) {
convertedAttribs = objs[0];
} else {
if (!isObjectExpression(objs[0])) {
objs.unshift(objectExpression([]));
}
const helper = useBuiltIns ? memberExpression(identifier("Object"), identifier("assign")) : pass.addHelper("extends");
convertedAttribs = callExpression(helper, objs);
}
return convertedAttribs;
}
function buildFragmentCall(path, pass) {
if (opts.filter && !opts.filter(path.node, pass)) return;
path.node.children = react.buildChildren(path.node);
const args = [];
const tagName = null;
const tagExpr = pass.get("jsxFragIdentifier")();
const state = {
tagExpr: tagExpr,
tagName: tagName,
args: args,
pure: false
};
if (opts.pre) {
opts.pre(state, pass);
}
args.push(nullLiteral(), ...path.node.children);
if (opts.post) {
opts.post(state, pass);
}
pass.set("usedFragment", true);
const call = state.call || callExpression(state.callee, args);
if (state.pure) (0, _helperAnnotateAsPure.default)(call);
return call;
}
}
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