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"use strict";
Object.defineProperty(exports, "__esModule", {
value: true
});
exports.default = parseAndBuildMetadata;
function t() {
const data = _interopRequireWildcard(require("@babel/types"));
t = function t() {
return data;
};
return data;
}
function _babylon() {
const data = require("babylon");
_babylon = function _babylon() {
return data;
};
return data;
}
function _codeFrame() {
const data = require("@babel/code-frame");
_codeFrame = function _codeFrame() {
return data;
};
return data;
}
function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } else { var newObj = {}; if (obj != null) { for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) { var desc = Object.defineProperty && Object.getOwnPropertyDescriptor ? Object.getOwnPropertyDescriptor(obj, key) : {}; if (desc.get || desc.set) { Object.defineProperty(newObj, key, desc); } else { newObj[key] = obj[key]; } } } } newObj.default = obj; return newObj; } }
const PATTERN = /^[_$A-Z0-9]+$/;
function parseAndBuildMetadata(formatter, code, opts) {
const ast = parseWithCodeFrame(code, opts.parser);
const placeholderWhitelist = opts.placeholderWhitelist,
_opts$placeholderPatt = opts.placeholderPattern,
placeholderPattern = _opts$placeholderPatt === void 0 ? PATTERN : _opts$placeholderPatt,
preserveComments = opts.preserveComments;
t().removePropertiesDeep(ast, {
preserveComments
});
formatter.validate(ast);
const placeholders = [];
const placeholderNames = new Set();
t().traverse(ast, placeholderVisitorHandler, {
placeholders,
placeholderNames,
placeholderWhitelist,
placeholderPattern
});
return {
ast,
placeholders,
placeholderNames
};
}
function placeholderVisitorHandler(node, ancestors, state) {
let name;
if (t().isIdentifier(node) || t().isJSXIdentifier(node)) {
name = node.name;
} else if (t().isStringLiteral(node)) {
name = node.value;
} else {
return;
}
if ((!state.placeholderPattern || !state.placeholderPattern.test(name)) && (!state.placeholderWhitelist || !state.placeholderWhitelist.has(name))) {
return;
}
ancestors = ancestors.slice();
const _ancestors = ancestors[ancestors.length - 1],
parent = _ancestors.node,
key = _ancestors.key;
let type;
if (t().isStringLiteral(node)) {
type = "string";
} else if (t().isNewExpression(parent) && key === "arguments" || t().isCallExpression(parent) && key === "arguments" || t().isFunction(parent) && key === "params") {
type = "param";
} else if (t().isExpressionStatement(parent)) {
type = "statement";
ancestors = ancestors.slice(0, -1);
} else {
type = "other";
}
state.placeholders.push({
name,
type,
resolve: ast => resolveAncestors(ast, ancestors),
isDuplicate: state.placeholderNames.has(name)
});
state.placeholderNames.add(name);
}
function resolveAncestors(ast, ancestors) {
let parent = ast;
for (let i = 0; i < ancestors.length - 1; i++) {
const _ancestors$i = ancestors[i],
key = _ancestors$i.key,
index = _ancestors$i.index;
if (index === undefined) {
parent = parent[key];
} else {
parent = parent[key][index];
}
}
const _ancestors2 = ancestors[ancestors.length - 1],
key = _ancestors2.key,
index = _ancestors2.index;
return {
parent,
key,
index
};
}
function parseWithCodeFrame(code, parserOpts) {
parserOpts = Object.assign({
allowReturnOutsideFunction: true,
allowSuperOutsideMethod: true,
sourceType: "module"
}, parserOpts);
try {
return (0, _babylon().parse)(code, parserOpts);
} catch (err) {
const loc = err.loc;
if (loc) {
err.message += "\n" + (0, _codeFrame().codeFrameColumns)(code, {
start: loc
});
err.code = "BABEL_TEMPLATE_PARSE_ERROR";
}
throw err;
}
}
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