v/vlib/v/gen/js/tests/interp.js

// V_COMMIT_HASH 8a24d7d
// V_CURRENT_COMMIT_HASH 123d788
// Generated by the V compiler

"use strict";

/** @namespace builtin */
const builtin = (function () {
	/**
	 * @function
	 * @param {any} s
	 * @returns {void}
	*/
	function println(s) {
		console.log(s);
	}
	
	/**
	 * @function
	 * @param {any} s
	 * @returns {void}
	*/
	function print(s) {
		process.stdout.write(s);
	}

	/* module exports */
	return {
		println,
		print
	};
})();

/** @namespace main */
const main = (function () {
	/**
	 * @function
	 * @param {string} s1
	 * @param {string} s2
	 * @returns {void}
	*/
	function test_fn(s1, s2) {
		builtin.print((s1 === s2 ? "true" : "false"));
		builtin.print("\t=> ");
		builtin.println(`"${s1}", "${s2}"`);
	}
	
	/**
	 * @function
	 * @returns {void}
	*/
	function simple_string_interpolation() {
		/** @type {string} */
		const a = "Hello";
		/** @type {string} */
		const b = "World";
		/** @type {string} */
		const res = `${a} ${b}`;
		test_fn(res, "Hello World");
	}
	
	/**
	 * @function
	 * @returns {void}
	*/
	function mixed_string_interpolation() {
		/** @type {number} */
		const num = 7;
		/** @type {string} */
		const str = "abc";
		/** @type {string} */
		const s1 = `number=${num}`;
		test_fn(s1, "number=7");
		/** @type {string} */
		const s2 = `string=${str}`;
		test_fn(s2, "string=abc");
		/** @type {string} */
		const s3 = `a: ${num} | b: ${str}`;
		test_fn(s3, "a: 7 | b: abc");
	}
	
	/**
	 * @function
	 * @returns {void}
	*/
	function formatted_string_interpolation() {
		/** @type {string} */
		const x = "abc";
		/** @type {string} */
		const axb = `a:${x}:b`;
		test_fn(axb, "a:abc:b");
		/** @type {string} */
		const x_10 = `a:${x}:b`;
		/** @type {string} */
		const x10_ = `a:${x}:b`;
		test_fn(x_10, "a:       abc:b");
		test_fn(x10_, "a:abc       :b");
		/** @type {number} */
		const i = 23;
		/** @type {string} */
		const si_right = `${i}`;
		/** @type {string} */
		const si__left = `${i}`;
		test_fn(si_right, "        23");
		test_fn(si__left, "23        ");
	}
	
	/**
	 * @function
	 * @returns {void}
	*/
	function implicit_str() {
		/** @type {number} */
		const i = 42;
		test_fn(`int ${i}`, "int 42");
		test_fn(`${i}`, "42");
		/** @type {boolean} */
		const check = `${i}` === "42";
		/** @type {string} */
		const text = `${i}` + "42";
		test_fn(text, "4242");
	}
	
	/**
	 * @function
	 * @returns {void}
	*/
	function string_interpolation_percent_escaping() {
		/** @type {string} */
		const test = "hello";
		/** @type {string} */
		const hello = "world";
		/** @type {string} */
		const x = `%.*s${hello}${test} |${hello}|`;
		test_fn(x, "%.*sworldhello |world                         |");
	}
	
	/**
	 * @function
	 * @returns {void}
	*/
	function string_interpolation_string_prefix() {
		/** @type {string} */
		const r = "r";
		/** @type {string} */
		const rr = `${r}${r}`;
		test_fn(rr, "rr");
		/** @type {string} */
		const c = "c";
		/** @type {string} */
		const cc = `${c}${c}`;
		test_fn(cc, "cc");
		/** @type {string} */
		const js = "js";
		/** @type {string} */
		const jsjs = `${js}${js}`;
		test_fn(jsjs, "jsjs");
	}
	
	/**
	 * @function
	 * @returns {void}
	*/
	function interpolation_string_prefix_expr() {
		/** @type {number} */
		const r = 1;
		/** @type {number} */
		const c = 2;
		/** @type {number} */
		const js = 1;
		test_fn(`>${3 + r}<`, ">4<");
		test_fn(`${r === js} ${js}`, "true 1");
		test_fn(`>${js + c} ${js + r === c}<`, ">3 true<");
	}
	
	/**
	 * @function
	 * @returns {void}
	*/
	function utf8_string_interpolation() {
		/** @type {string} */
		const a = "à-côté";
		/** @type {string} */
		const st = "Sträßle";
		/** @type {string} */
		const m = "10€";
		test_fn(`${a} ${st} ${m}`, "à-côté Sträßle 10€");
		/** @type {string} */
		const zz = `>${a}< >${st}< >${m}<-`;
		/** @type {string} */
		const zz_expected = ">    à-côté< >Sträßle < >  10€<-";
		test_fn(zz, zz_expected);
		/** @type {string} */
		const e = "€";
		test_fn(`100.00 ${e}`, "100.00 €");
		/** @type {string} */
		const m2 = "Москва́";
		/** @type {string} */
		const d = "Antonín Dvořák";
		test_fn(`:${m2}:${d}:`, ": Москва́:Antonín Dvořák :");
		/** @type {string} */
		const g = "Πελοπόννησος";
		test_fn(`>${g}<`, ">Πελοπόννησος <");
	}
	
	/**
	 * @constructor
	 * @param {{v1?: number, v2?: number}} init
	*/
	function Sss({ v1 = 0, v2 = 0 }) {
		this.v1 = v1
		this.v2 = v2
	};
	Sss.prototype = {
		/** @type {number} */
		v1: 0,
		/** @type {number} */
		v2: 0,
		/**
		 * @function
		 * @returns {string}
		*/
		str() {
			const s = this;
			return `[${s.v1}, ${s.v2}]`;
		}
	};

	
	/**
	 * @function
	 * @returns {void}
	*/
	function string_interpolation_str_evaluation() {
		/** @type {Sss} */
		let x = new Sss({
			v1: 17,
			v2: 13.455893
		});
		test_fn(`${x.str()}`, "[17, 13.456]");
	}
	
	/* program entry point */
	(function() {
		simple_string_interpolation();
		mixed_string_interpolation();
		formatted_string_interpolation();
		implicit_str();
		string_interpolation_percent_escaping();
		string_interpolation_string_prefix();
		interpolation_string_prefix_expr();
		utf8_string_interpolation();
		string_interpolation_str_evaluation();
	})();

	/* module exports */
	return {};
})();