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