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"use strict";
Object.defineProperty(exports, "__esModule", {
value: true
});
exports.default = literalTemplate;
var _options = require("./options");
var _parse = _interopRequireDefault(require("./parse"));
var _populate = _interopRequireDefault(require("./populate"));
function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
function literalTemplate(formatter, tpl, opts) {
const {
metadata,
names
} = buildLiteralData(formatter, tpl, opts);
return arg => {
const defaultReplacements = arg.reduce((acc, replacement, i) => {
acc[names[i]] = replacement;
return acc;
}, {});
return arg => {
const replacements = (0, _options.normalizeReplacements)(arg);
if (replacements) {
Object.keys(replacements).forEach(key => {
if (Object.prototype.hasOwnProperty.call(defaultReplacements, key)) {
throw new Error("Unexpected replacement overlap.");
}
});
}
return formatter.unwrap((0, _populate.default)(metadata, replacements ? Object.assign(replacements, defaultReplacements) : defaultReplacements));
};
};
}
function buildLiteralData(formatter, tpl, opts) {
let names;
let nameSet;
let metadata;
let prefix = "";
do {
prefix += "$";
const result = buildTemplateCode(tpl, prefix);
names = result.names;
nameSet = new Set(names);
metadata = (0, _parse.default)(formatter, formatter.code(result.code), {
parser: opts.parser,
placeholderWhitelist: new Set(result.names.concat(opts.placeholderWhitelist ? Array.from(opts.placeholderWhitelist) : [])),
placeholderPattern: opts.placeholderPattern,
preserveComments: opts.preserveComments,
syntacticPlaceholders: opts.syntacticPlaceholders
});
} while (metadata.placeholders.some(placeholder => placeholder.isDuplicate && nameSet.has(placeholder.name)));
return {
metadata,
names
};
}
function buildTemplateCode(tpl, prefix) {
const names = [];
let code = tpl[0];
for (let i = 1; i < tpl.length; i++) {
const value = `${prefix}${i - 1}`;
names.push(value);
code += value + tpl[i];
}
return {
names,
code
};
}
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