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							- "use strict";
 
- Object.defineProperty(exports, "__esModule", {
 
-   value: true
 
- });
 
- exports.default = createTemplateBuilder;
 
- var _options = require("./options.js");
 
- var _string = require("./string.js");
 
- var _literal = require("./literal.js");
 
- const NO_PLACEHOLDER = (0, _options.validate)({
 
-   placeholderPattern: false
 
- });
 
- function createTemplateBuilder(formatter, defaultOpts) {
 
-   const templateFnCache = new WeakMap();
 
-   const templateAstCache = new WeakMap();
 
-   const cachedOpts = defaultOpts || (0, _options.validate)(null);
 
-   return Object.assign((tpl, ...args) => {
 
-     if (typeof tpl === "string") {
 
-       if (args.length > 1) throw new Error("Unexpected extra params.");
 
-       return extendedTrace((0, _string.default)(formatter, tpl, (0, _options.merge)(cachedOpts, (0, _options.validate)(args[0]))));
 
-     } else if (Array.isArray(tpl)) {
 
-       let builder = templateFnCache.get(tpl);
 
-       if (!builder) {
 
-         builder = (0, _literal.default)(formatter, tpl, cachedOpts);
 
-         templateFnCache.set(tpl, builder);
 
-       }
 
-       return extendedTrace(builder(args));
 
-     } else if (typeof tpl === "object" && tpl) {
 
-       if (args.length > 0) throw new Error("Unexpected extra params.");
 
-       return createTemplateBuilder(formatter, (0, _options.merge)(cachedOpts, (0, _options.validate)(tpl)));
 
-     }
 
-     throw new Error(`Unexpected template param ${typeof tpl}`);
 
-   }, {
 
-     ast: (tpl, ...args) => {
 
-       if (typeof tpl === "string") {
 
-         if (args.length > 1) throw new Error("Unexpected extra params.");
 
-         return (0, _string.default)(formatter, tpl, (0, _options.merge)((0, _options.merge)(cachedOpts, (0, _options.validate)(args[0])), NO_PLACEHOLDER))();
 
-       } else if (Array.isArray(tpl)) {
 
-         let builder = templateAstCache.get(tpl);
 
-         if (!builder) {
 
-           builder = (0, _literal.default)(formatter, tpl, (0, _options.merge)(cachedOpts, NO_PLACEHOLDER));
 
-           templateAstCache.set(tpl, builder);
 
-         }
 
-         return builder(args)();
 
-       }
 
-       throw new Error(`Unexpected template param ${typeof tpl}`);
 
-     }
 
-   });
 
- }
 
- function extendedTrace(fn) {
 
-   let rootStack = "";
 
-   try {
 
-     throw new Error();
 
-   } catch (error) {
 
-     if (error.stack) {
 
-       rootStack = error.stack.split("\n").slice(3).join("\n");
 
-     }
 
-   }
 
-   return arg => {
 
-     try {
 
-       return fn(arg);
 
-     } catch (err) {
 
-       err.stack += `\n    =============\n${rootStack}`;
 
-       throw err;
 
-     }
 
-   };
 
- }
 
- //# sourceMappingURL=builder.js.map
 
 
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