Rename `wasm2asm` to `wasm2js`, emit ESM by default (#1642)

* Rename the `wasm2asm` tool to `wasm2js`

This commit performs a relatively simple rename of the `wasm2asm` tool to
`wasm2js`. The functionality of the tool doesn't change just yet but it's
intended that we'll start generating an ES module instead of just an `asm.js`
function soon.

* wasm2js: Support `*.wasm` input files

Previously `wasm2js` only supported `*.wast` files but to make it a bit easier
to use in tooling pipelines this commit adds support for reading in a `*.wasm`
file directly. Determining which parser to use depends on the input filename,
where the binary parser is used with `*.wasm` files and the wast parser is used
for all other files.

* wasm2js: Emit ESM imports/exports by default

This commit alters the default behavior of `wasm2js` to emit an ESM by default,
either importing items from the environment or exporting. Items like
initialization of memory are also handled here.

1 files changed, 0 insertions, 650 deletions

diff --git a/test/wasm2asm/func.2asm.js b/test/wasm2asm/func.2asm.js
deleted file mode 100644
index dd738da52..000000000
--- a/test/wasm2asm/func.2asm.js
+++ /dev/null
@@ -1,650 +0,0 @@
-function asmFunc(global, env, buffer) {
- "use asm";
- var HEAP8 = new global.Int8Array(buffer);
- var HEAP16 = new global.Int16Array(buffer);
- var HEAP32 = new global.Int32Array(buffer);
- var HEAPU8 = new global.Uint8Array(buffer);
- var HEAPU16 = new global.Uint16Array(buffer);
- var HEAPU32 = new global.Uint32Array(buffer);
- var HEAPF32 = new global.Float32Array(buffer);
- var HEAPF64 = new global.Float64Array(buffer);
- var Math_imul = global.Math.imul;
- var Math_fround = global.Math.fround;
- var Math_abs = global.Math.abs;
- var Math_clz32 = global.Math.clz32;
- var Math_min = global.Math.min;
- var Math_max = global.Math.max;
- var Math_floor = global.Math.floor;
- var Math_ceil = global.Math.ceil;
- var Math_sqrt = global.Math.sqrt;
- var abort = env.abort;
- var nan = global.NaN;
- var infinity = global.Infinity;
- var i64toi32_i32$HIGH_BITS = 0;
- function dummy() {
-  
- }
- 
- function $1() {
-  
- }
- 
- function $2() {
-  
- }
- 
- function f() {
-  
- }
- 
- function h() {
-  
- }
- 
- function $5() {
-  
- }
- 
- function $6() {
-  
- }
- 
- function $7() {
-  
- }
- 
- function $8() {
-  
- }
- 
- function $9() {
-  
- }
- 
- function $10() {
-  
- }
- 
- function $11() {
-  
- }
- 
- function $12() {
-  
- }
- 
- function $13() {
-  
- }
- 
- function $14($0) {
-  $0 = $0 | 0;
- }
- 
- function $15(x) {
-  x = x | 0;
- }
- 
- function $16($0, $1_1, $2_1, $2$hi) {
-  $0 = $0 | 0;
-  $1_1 = +$1_1;
-  $2_1 = $2_1 | 0;
-  $2$hi = $2$hi | 0;
- }
- 
- function $17($0, $1_1) {
-  $0 = $0 | 0;
-  $1_1 = +$1_1;
- }
- 
- function $18($0, $1_1, x, x$hi, $3, $4) {
-  $0 = $0 | 0;
-  $1_1 = Math_fround($1_1);
-  x = x | 0;
-  x$hi = x$hi | 0;
-  $3 = $3 | 0;
-  $4 = +$4;
- }
- 
- function $19() {
-  return abort() | 0;
- }
- 
- function $20() {
-  
- }
- 
- function complex($0, $1_1, x, x$hi, $3) {
-  $0 = $0 | 0;
-  $1_1 = Math_fround($1_1);
-  x = x | 0;
-  x$hi = x$hi | 0;
-  $3 = $3 | 0;
-  return abort() | 0;
- }
- 
- function complex_sig() {
-  abort();
- }
- 
- function $23() {
-  var $0 = 0;
-  return $0 | 0;
- }
- 
- function $24() {
-  var i64toi32_i32$0 = 0, $0$hi = 0, $0 = 0;
-  i64toi32_i32$0 = $0$hi;
-  i64toi32_i32$0 = i64toi32_i32$0;
-  i64toi32_i32$HIGH_BITS = i64toi32_i32$0;
-  return $0 | 0;
- }
- 
- function $25() {
-  var $0 = Math_fround(0);
-  return Math_fround($0);
- }
- 
- function $26() {
-  var $0 = 0.0;
-  return +$0;
- }
- 
- function $27() {
-  var $1_1 = 0;
-  return $1_1 | 0;
- }
- 
- function $28() {
-  var i64toi32_i32$0 = 0, $1$hi = 0, $1_1 = 0;
-  i64toi32_i32$0 = $1$hi;
-  i64toi32_i32$0 = i64toi32_i32$0;
-  i64toi32_i32$HIGH_BITS = i64toi32_i32$0;
-  return $1_1 | 0;
- }
- 
- function $29() {
-  var $1_1 = Math_fround(0);
-  return Math_fround($1_1);
- }
- 
- function $30() {
-  var $1_1 = 0.0;
-  return +$1_1;
- }
- 
- function $31() {
-  var i64toi32_i32$0 = 0, $4 = 0.0, $0 = Math_fround(0), x = 0, $2$hi = 0, $2_1 = 0, $3 = 0, $5_1 = 0;
-  i64toi32_i32$0 = $2$hi;
-  i64toi32_i32$0 = i64toi32_i32$0;
-  return +$4;
- }
- 
- function $32($0, $1_1) {
-  $0 = $0 | 0;
-  $1_1 = $1_1 | 0;
-  return $0 | 0;
- }
- 
- function $33($0, $0$hi, $1_1, $1$hi) {
-  $0 = $0 | 0;
-  $0$hi = $0$hi | 0;
-  $1_1 = $1_1 | 0;
-  $1$hi = $1$hi | 0;
-  var i64toi32_i32$0 = 0;
-  i64toi32_i32$0 = $0$hi;
-  i64toi32_i32$0 = i64toi32_i32$0;
-  i64toi32_i32$HIGH_BITS = i64toi32_i32$0;
-  return $0 | 0;
- }
- 
- function $34($0, $1_1) {
-  $0 = Math_fround($0);
-  $1_1 = Math_fround($1_1);
-  return Math_fround($0);
- }
- 
- function $35($0, $1_1) {
-  $0 = +$0;
-  $1_1 = +$1_1;
-  return +$0;
- }
- 
- function $36($0, $1_1) {
-  $0 = $0 | 0;
-  $1_1 = $1_1 | 0;
-  return $1_1 | 0;
- }
- 
- function $37($0, $0$hi, $1_1, $1$hi) {
-  $0 = $0 | 0;
-  $0$hi = $0$hi | 0;
-  $1_1 = $1_1 | 0;
-  $1$hi = $1$hi | 0;
-  var i64toi32_i32$0 = 0;
-  i64toi32_i32$0 = $1$hi;
-  i64toi32_i32$0 = i64toi32_i32$0;
-  i64toi32_i32$HIGH_BITS = i64toi32_i32$0;
-  return $1_1 | 0;
- }
- 
- function $38($0, $1_1) {
-  $0 = Math_fround($0);
-  $1_1 = Math_fround($1_1);
-  return Math_fround($1_1);
- }
- 
- function $39($0, $1_1) {
-  $0 = +$0;
-  $1_1 = +$1_1;
-  return +$1_1;
- }
- 
- function $40($0, $1_1, x, x$hi, $3, $4, $5_1) {
-  $0 = Math_fround($0);
-  $1_1 = $1_1 | 0;
-  x = x | 0;
-  x$hi = x$hi | 0;
-  $3 = $3 | 0;
-  $4 = +$4;
-  $5_1 = $5_1 | 0;
-  var i64toi32_i32$0 = 0;
-  i64toi32_i32$0 = x$hi;
-  i64toi32_i32$0 = i64toi32_i32$0;
-  return +$4;
- }
- 
- function $41() {
-  
- }
- 
- function $42() {
-  dummy();
- }
- 
- function $43() {
-  return 77 | 0;
- }
- 
- function $44() {
-  i64toi32_i32$HIGH_BITS = 0;
-  return 7777 | 0;
- }
- 
- function $45() {
-  return Math_fround(Math_fround(77.69999694824219));
- }
- 
- function $46() {
-  return +(77.77);
- }
- 
- function $47() {
-  block : {
-   dummy();
-   dummy();
-  };
- }
- 
- function $48() {
-  dummy();
-  return 77 | 0;
- }
- 
- function $49() {
-  return;
- }
- 
- function $50() {
-  return 78 | 0;
- }
- 
- function $51() {
-  i64toi32_i32$HIGH_BITS = 0;
-  return 7878 | 0;
- }
- 
- function $52() {
-  return Math_fround(Math_fround(78.69999694824219));
- }
- 
- function $53() {
-  return +(78.78);
- }
- 
- function $54() {
-  dummy();
-  return 77 | 0;
- }
- 
- function $55() {
-  
- }
- 
- function $56() {
-  var $0 = 0;
-  fake_return_waka123 : {
-   $0 = 79;
-   break fake_return_waka123;
-  };
-  return $0 | 0;
- }
- 
- function $57() {
-  var i64toi32_i32$0 = 0, $0 = 0, $0$hi = 0;
-  fake_return_waka123 : {
-   i64toi32_i32$0 = 0;
-   $0 = 7979;
-   $0$hi = i64toi32_i32$0;
-   break fake_return_waka123;
-  };
-  i64toi32_i32$0 = $0$hi;
-  i64toi32_i32$0 = i64toi32_i32$0;
-  i64toi32_i32$HIGH_BITS = i64toi32_i32$0;
-  return $0 | 0;
- }
- 
- function $58() {
-  var $0 = Math_fround(0);
-  fake_return_waka123 : {
-   $0 = Math_fround(79.9000015258789);
-   break fake_return_waka123;
-  };
-  return Math_fround($0);
- }
- 
- function $59() {
-  var $0 = 0.0;
-  fake_return_waka123 : {
-   $0 = 79.79;
-   break fake_return_waka123;
-  };
-  return +$0;
- }
- 
- function $60() {
-  var $2_1 = 0;
-  fake_return_waka123 : {
-   dummy();
-   $2_1 = 77;
-   break fake_return_waka123;
-  };
-  return $2_1 | 0;
- }
- 
- function $61($0) {
-  $0 = $0 | 0;
- }
- 
- function $62($0) {
-  $0 = $0 | 0;
-  var $2_1 = 0;
-  fake_return_waka123 : {
-   $2_1 = 50;
-   if ($0) break fake_return_waka123;
-   $2_1 = 51;
-  };
-  return $2_1 | 0;
- }
- 
- function $63($0) {
-  $0 = $0 | 0;
- }
- 
- function $64($0) {
-  $0 = $0 | 0;
-  var $3 = 0;
-  fake_return_waka123 : {
-   $3 = 50;
-   switch ($0 | 0) {
-   case 0:
-    break fake_return_waka123;
-   default:
-    break fake_return_waka123;
-   };
-  };
-  return $3 | 0;
- }
- 
- function $65($0) {
-  $0 = $0 | 0;
- }
- 
- function $66($0) {
-  $0 = $0 | 0;
-  var $2_1 = 0, $3 = 0, $4 = 0;
-  fake_return_waka123 : {
-   block : {
-    $2_1 = 50;
-    $3 = $2_1;
-    $4 = $2_1;
-    switch ($0 | 0) {
-    case 0:
-     break block;
-    case 1:
-     break fake_return_waka123;
-    default:
-     break block;
-    };
-   };
-   $4 = $3 + 2 | 0;
-  };
-  return $4 | 0;
- }
- 
- function $67() {
-  var $0 = 0;
-  return $0 | 0;
- }
- 
- function $68() {
-  var i64toi32_i32$0 = 0, $0$hi = 0, $0 = 0;
-  i64toi32_i32$0 = $0$hi;
-  i64toi32_i32$0 = i64toi32_i32$0;
-  i64toi32_i32$HIGH_BITS = i64toi32_i32$0;
-  return $0 | 0;
- }
- 
- function $69() {
-  var $0 = Math_fround(0);
-  return Math_fround($0);
- }
- 
- function $70() {
-  var $0 = 0.0;
-  return +$0;
- }
- 
- function empty_sig_1() {
-  
- }
- 
- function complex_sig_1($0, $1_1, $1$hi, $2_1, $3, $3$hi, $4, $5_1, $5$hi, $6_1, $7_1) {
-  $0 = +$0;
-  $1_1 = $1_1 | 0;
-  $1$hi = $1$hi | 0;
-  $2_1 = +$2_1;
-  $3 = $3 | 0;
-  $3$hi = $3$hi | 0;
-  $4 = +$4;
-  $5_1 = $5_1 | 0;
-  $5$hi = $5$hi | 0;
-  $6_1 = Math_fround($6_1);
-  $7_1 = $7_1 | 0;
- }
- 
- function empty_sig_2() {
-  
- }
- 
- function complex_sig_2($0, $1_1, $1$hi, $2_1, $3, $3$hi, $4, $5_1, $5$hi, $6_1, $7_1) {
-  $0 = +$0;
-  $1_1 = $1_1 | 0;
-  $1$hi = $1$hi | 0;
-  $2_1 = +$2_1;
-  $3 = $3 | 0;
-  $3$hi = $3$hi | 0;
-  $4 = +$4;
-  $5_1 = $5_1 | 0;
-  $5$hi = $5$hi | 0;
-  $6_1 = Math_fround($6_1);
-  $7_1 = $7_1 | 0;
- }
- 
- function complex_sig_3($0, $1_1, $1$hi, $2_1, $3, $3$hi, $4, $5_1, $5$hi, $6_1, $7_1) {
-  $0 = +$0;
-  $1_1 = $1_1 | 0;
-  $1$hi = $1$hi | 0;
-  $2_1 = +$2_1;
-  $3 = $3 | 0;
-  $3$hi = $3$hi | 0;
-  $4 = +$4;
-  $5_1 = $5_1 | 0;
-  $5$hi = $5$hi | 0;
-  $6_1 = Math_fround($6_1);
-  $7_1 = $7_1 | 0;
- }
- 
- function $76() {
-  var wasm2asm_i32$0 = 0;
-  wasm2asm_i32$0 = 1;
-  FUNCTION_TABLE_v[wasm2asm_i32$0 & 7]();
-  wasm2asm_i32$0 = 4;
-  FUNCTION_TABLE_v[wasm2asm_i32$0 & 7]();
- }
- 
- function $77() {
-  var i64toi32_i32$0 = 0, i64toi32_i32$1 = 0, i64toi32_i32$2 = 0, wasm2asm_i32$0 = 0, wasm2asm_f64$0 = 0.0, wasm2asm_i32$1 = 0, wasm2asm_i32$2 = 0, wasm2asm_f64$1 = 0.0, wasm2asm_i32$3 = 0, wasm2asm_i32$4 = 0, wasm2asm_f64$2 = 0.0, wasm2asm_i32$5 = 0, wasm2asm_i32$6 = 0, wasm2asm_f32$0 = Math_fround(0), wasm2asm_i32$7 = 0;
-  i64toi32_i32$0 = 0;
-  i64toi32_i32$1 = 0;
-  i64toi32_i32$2 = 0;
-  wasm2asm_f64$0 = 0.0;
-  wasm2asm_i32$1 = 0;
-  wasm2asm_i32$2 = i64toi32_i32$0;
-  wasm2asm_f64$1 = 0.0;
-  wasm2asm_i32$3 = 0;
-  wasm2asm_i32$4 = i64toi32_i32$1;
-  wasm2asm_f64$2 = 0.0;
-  wasm2asm_i32$5 = 0;
-  wasm2asm_i32$6 = i64toi32_i32$2;
-  wasm2asm_f32$0 = Math_fround(0.0);
-  wasm2asm_i32$7 = 0;
-  wasm2asm_i32$0 = 0;
-  FUNCTION_TABLE_vdiidiidiifi[wasm2asm_i32$0 & 7](+wasm2asm_f64$0, wasm2asm_i32$1 | 0, wasm2asm_i32$2 | 0, +wasm2asm_f64$1, wasm2asm_i32$3 | 0, wasm2asm_i32$4 | 0, +wasm2asm_f64$2, wasm2asm_i32$5 | 0, wasm2asm_i32$6 | 0, Math_fround(wasm2asm_f32$0), wasm2asm_i32$7 | 0);
-  i64toi32_i32$2 = 0;
-  i64toi32_i32$1 = 0;
-  i64toi32_i32$0 = 0;
-  wasm2asm_f64$2 = 0.0;
-  wasm2asm_i32$7 = 0;
-  wasm2asm_i32$6 = i64toi32_i32$2;
-  wasm2asm_f64$1 = 0.0;
-  wasm2asm_i32$5 = 0;
-  wasm2asm_i32$4 = i64toi32_i32$1;
-  wasm2asm_f64$0 = 0.0;
-  wasm2asm_i32$3 = 0;
-  wasm2asm_i32$2 = i64toi32_i32$0;
-  wasm2asm_f32$0 = Math_fround(0.0);
-  wasm2asm_i32$1 = 0;
-  wasm2asm_i32$0 = 2;
-  FUNCTION_TABLE_vdiidiidiifi[wasm2asm_i32$0 & 7](+wasm2asm_f64$2, wasm2asm_i32$7 | 0, wasm2asm_i32$6 | 0, +wasm2asm_f64$1, wasm2asm_i32$5 | 0, wasm2asm_i32$4 | 0, +wasm2asm_f64$0, wasm2asm_i32$3 | 0, wasm2asm_i32$2 | 0, Math_fround(wasm2asm_f32$0), wasm2asm_i32$1 | 0);
-  i64toi32_i32$0 = 0;
-  i64toi32_i32$1 = 0;
-  i64toi32_i32$2 = 0;
-  wasm2asm_f64$0 = 0.0;
-  wasm2asm_i32$1 = 0;
-  wasm2asm_i32$2 = i64toi32_i32$0;
-  wasm2asm_f64$1 = 0.0;
-  wasm2asm_i32$3 = 0;
-  wasm2asm_i32$4 = i64toi32_i32$1;
-  wasm2asm_f64$2 = 0.0;
-  wasm2asm_i32$5 = 0;
-  wasm2asm_i32$6 = i64toi32_i32$2;
-  wasm2asm_f32$0 = Math_fround(0.0);
-  wasm2asm_i32$7 = 0;
-  wasm2asm_i32$0 = 3;
-  FUNCTION_TABLE_vdiidiidiifi[wasm2asm_i32$0 & 7](+wasm2asm_f64$0, wasm2asm_i32$1 | 0, wasm2asm_i32$2 | 0, +wasm2asm_f64$1, wasm2asm_i32$3 | 0, wasm2asm_i32$4 | 0, +wasm2asm_f64$2, wasm2asm_i32$5 | 0, wasm2asm_i32$6 | 0, Math_fround(wasm2asm_f32$0), wasm2asm_i32$7 | 0);
- }
- 
- function $78() {
-  var wasm2asm_i32$0 = 0;
-  wasm2asm_i32$0 = 1;
-  FUNCTION_TABLE_v[wasm2asm_i32$0 & 7]();
- }
- 
- function $79() {
-  var wasm2asm_i32$0 = 0, wasm2asm_f64$0 = 0.0, wasm2asm_i32$1 = 0, wasm2asm_i32$2 = 0, wasm2asm_f64$1 = 0.0, wasm2asm_i32$3 = 0, wasm2asm_i32$4 = 0, wasm2asm_f64$2 = 0.0, wasm2asm_i32$5 = 0, wasm2asm_i32$6 = 0, wasm2asm_f32$0 = Math_fround(0), wasm2asm_i32$7 = 0;
-  wasm2asm_f64$0 = 0.0;
-  wasm2asm_i32$1 = 0;
-  wasm2asm_i32$2 = 0;
-  wasm2asm_f64$1 = 0.0;
-  wasm2asm_i32$3 = 0;
-  wasm2asm_i32$4 = 0;
-  wasm2asm_f64$2 = 0.0;
-  wasm2asm_i32$5 = 0;
-  wasm2asm_i32$6 = 0;
-  wasm2asm_f32$0 = Math_fround(0.0);
-  wasm2asm_i32$7 = 0;
-  wasm2asm_i32$0 = 0;
-  FUNCTION_TABLE_vdiidiidiifi[wasm2asm_i32$0 & 7](+wasm2asm_f64$0, wasm2asm_i32$1 | 0, wasm2asm_i32$2 | 0, +wasm2asm_f64$1, wasm2asm_i32$3 | 0, wasm2asm_i32$4 | 0, +wasm2asm_f64$2, wasm2asm_i32$5 | 0, wasm2asm_i32$6 | 0, Math_fround(wasm2asm_f32$0), wasm2asm_i32$7 | 0);
- }
- 
- var FUNCTION_TABLE_v = [empty_sig_2, empty_sig_2, empty_sig_2, empty_sig_2, empty_sig_1, empty_sig_2, empty_sig_2, empty_sig_2];
- var FUNCTION_TABLE_vdiidiidiifi = [complex_sig_3, complex_sig_3, complex_sig_1, complex_sig_3, complex_sig_3, complex_sig_3, complex_sig_3, complex_sig_3];
- return {
-  f: $2, 
-  g: h, 
-  local_first_i32: $23, 
-  local_first_i64: $24, 
-  local_first_f32: $25, 
-  local_first_f64: $26, 
-  local_second_i32: $27, 
-  local_second_i64: $28, 
-  local_second_f32: $29, 
-  local_second_f64: $30, 
-  local_mixed: $31, 
-  param_first_i32: $32, 
-  param_first_i64: $33, 
-  param_first_f32: $34, 
-  param_first_f64: $35, 
-  param_second_i32: $36, 
-  param_second_i64: $37, 
-  param_second_f32: $38, 
-  param_second_f64: $39, 
-  param_mixed: $40, 
-  empty: $41, 
-  value_void: $42, 
-  value_i32: $43, 
-  value_i64: $44, 
-  value_f32: $45, 
-  value_f64: $46, 
-  value_block_void: $47, 
-  value_block_i32: $48, 
-  return_empty: $49, 
-  return_i32: $50, 
-  return_i64: $51, 
-  return_f32: $52, 
-  return_f64: $53, 
-  return_block_i32: $54, 
-  break_empty: $55, 
-  break_i32: $56, 
-  break_i64: $57, 
-  break_f32: $58, 
-  break_f64: $59, 
-  break_block_i32: $60, 
-  break_br_if_empty: $61, 
-  break_br_if_num: $62, 
-  break_br_table_empty: $63, 
-  break_br_table_num: $64, 
-  break_br_table_nested_empty: $65, 
-  break_br_table_nested_num: $66, 
-  init_local_i32: $67, 
-  init_local_i64: $68, 
-  init_local_f32: $69, 
-  init_local_f64: $70, 
-  signature_explicit_reused: $76, 
-  signature_implicit_reused: $77, 
-  signature_explicit_duplicate: $78, 
-  signature_implicit_duplicate: $79
- };
-}
-