silverbullet/common/space_lua/parse.test.ts

import { parse } from "$common/space_lua/parse.ts";

Deno.test("Test Lua parser", () => {
  // Basic block test
  parse(`
        print("Hello, World!")
        print(10)
`);
  parse("");
  // Expression tests
  parse(
    `e(1, 1.2, -3.8, +4, #lst, true, false, nil, "string", "", "Hello there \x00", ...)`,
  );
  parse(`e([[hel]lo]], "Grinny face\\u{1F600}")`);

  parse(`e(10 << 10, 10 >> 10, 10 & 10, 10 | 10, 10 ~ 10)`);

  parse(`e(true and false or true)`);
  parse(`e(a < 3 and b > 4 or b == 5 or c <= 6 and d >= 7 or a /= 8)`);
  parse(`e(a.b.c)`);
  parse(`e((1+2))`);

  // Table expressions
  parse(`e({})`);
  parse(`e({1, 2, 3, })`);
  parse(`e({1 ; 2 ; 3})`);
  parse(`e({a = 1, b = 2, c = 3})`);
  parse(`e({[3] = 1, [10 * 10] = "sup"})`);
  parse(`e(tbl.name)`);
  parse(`e(tbl["name" + 10])`);
  parse(`e(test().bla)`);

  // Function calls
  parse(`e(func(), func(1, 2, 3), a.b(), a.b.c:hello(), (a.b)(7))`);

  // Function expression
  parse(`e(function(a, b) test() end)`);
  parse(`e(function(a, b, ...) end)`);

  // Statements
  parse(`do end`);
  parse(`do print() end`);
  parse(`::hello::
        goto hello`);
  parse(`while true do print() end`);
  parse(`repeat print() until false`);
  parse(
    `if 1 == 2 then print() elseif 1 < 2 then print2() else print3() end`,
  );
  parse(`if true then print() end`);
  parse(`if true then print() else print2() end`);
  parse(`if true then print() elseif false then print2() end`);

  // For loops
  parse(`for i = 1, 10, 1 do print(i) end`);
  parse(`for i = 1, 10 do print(i) end`);
  parse(`for el in each({1, 2, 3}) do print(i) end`);
  parse(`for i, l in 1, pairs() do print(i) end`);

  // Function statements
  parse(`function a() end`);
  parse(`function a:b() end`);
  parse(`function a.b.c:d() end`);
  parse(`function a.b.c() end`);
  parse(`function hello(a, b) end`);
  parse(`function hello(a, b, ...) end`);
  parse(`local function hello() end`);

  // Assignments, local variables etc.
  parse(`a = 1`);
  parse(`a, b = 1, 2`);
  parse(`a.b.c = 1`);
  parse(`a["name"] = 1`);
  parse(`local a, b<const>`);
  parse(`local a = 1`);
  parse(`local a<const> = 4`);
  parse(`local a, b = 1, 2`);

  // Function calls
  parse(`a(1, 2, 3)`);
  parse(`print "Sup"`);
  parse(`e(1 + print "8")`);

  // Return statements
  parse(`return`);
  parse(`return 1`);
  parse(`return 1, 2, 3`);
});

Deno.test("Test comment handling", () => {
  parse(`
        -- Single line comment
        --[[ Multi
        line
        comment ]]
        f([[
        hello
        -- yo
      ]])`);
});