tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
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example.js (966B)

      1 // A diagram depicting the control flow graph of the function g below can be
      2 // found in "js/src/wasm/WasmIonCompile.cpp". If you make any changes to this
      3 // test file be sure to adjust the SMDOC documentation there as well.
      4 
      5 let g = wasmEvalText(
      6  `(module
      7     (tag $exn (param f64))
      8     (func $f)
      9     (func (export "g") (param $arg i32) (result f64)
     10       (local.get $arg)
     11       try (param i32) (result f64)
     12         (if (result f64)
     13           (then
     14             (f64.const 3))
     15           (else
     16             (throw $exn (f64.const 6))))
     17         (call $f)
     18         (f64.sub (f64.const 2))  ;; If $arg is 0 we end here, subtracting 3.
     19       ;; If $arg is not 0 then the else-block throws $exn, caught below.
     20       catch $exn
     21         (f64.add (f64.const 4))  ;; Adds 4 to the value in the $exn (6).
     22       catch_all                  ;; This shouldn't occur.
     23           (f64.const 5)
     24       end
     25     ))`
     26 ).exports.g;
     27 
     28 assertEq(g(0), 10);
     29 assertEq(g(1), 1);