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, 262 deletions

diff --git a/test/wasm2asm/conversions-modified.2asm.js b/test/wasm2asm/conversions-modified.2asm.js
deleted file mode 100644
index 8a96d6f6b..000000000
--- a/test/wasm2asm/conversions-modified.2asm.js
+++ /dev/null
@@ -1,262 +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 $0(x) {
-  x = x | 0;
-  var i64toi32_i32$1 = 0, i64toi32_i32$0 = 0;
-  i64toi32_i32$1 = x;
-  i64toi32_i32$0 = i64toi32_i32$1 >> 31 | 0;
-  i64toi32_i32$0 = i64toi32_i32$0;
-  i64toi32_i32$1 = i64toi32_i32$1;
-  i64toi32_i32$HIGH_BITS = i64toi32_i32$0;
-  return i64toi32_i32$1 | 0;
- }
- 
- function $1(x) {
-  x = x | 0;
-  var i64toi32_i32$0 = 0;
-  i64toi32_i32$0 = 0;
-  i64toi32_i32$0 = i64toi32_i32$0;
-  i64toi32_i32$HIGH_BITS = i64toi32_i32$0;
-  return x | 0;
- }
- 
- function $2(x, x$hi) {
-  x = x | 0;
-  x$hi = x$hi | 0;
-  return x | 0;
- }
- 
- function $3(x) {
-  x = Math_fround(x);
-  return ~~x | 0;
- }
- 
- function $4(x) {
-  x = Math_fround(x);
-  return ~~x >>> 0 | 0;
- }
- 
- function $5(x) {
-  x = +x;
-  return ~~x | 0;
- }
- 
- function $6(x) {
-  x = +x;
-  return ~~x >>> 0 | 0;
- }
- 
- function $7(x) {
-  x = Math_fround(x);
-  var i64toi32_i32$0 = Math_fround(0), i64toi32_i32$1 = 0, $4_1 = 0, $5_1 = 0, i64toi32_i32$2 = 0;
-  i64toi32_i32$0 = x;
-  if (Math_fround(Math_abs(i64toi32_i32$0)) >= Math_fround(1.0)) {
-   if (i64toi32_i32$0 > Math_fround(0.0)) $4_1 = ~~Math_fround(Math_min(Math_fround(Math_floor(Math_fround(i64toi32_i32$0 / Math_fround(4294967296.0)))), Math_fround(Math_fround(4294967296.0) - Math_fround(1.0)))) >>> 0; else $4_1 = ~~Math_fround(Math_ceil(Math_fround(Math_fround(i64toi32_i32$0 - Math_fround(~~i64toi32_i32$0 >>> 0 >>> 0)) / Math_fround(4294967296.0)))) >>> 0;
-   $5_1 = $4_1;
-  } else $5_1 = 0;
-  i64toi32_i32$1 = $5_1;
-  i64toi32_i32$1 = i64toi32_i32$1;
-  i64toi32_i32$2 = ~~i64toi32_i32$0 >>> 0;
-  i64toi32_i32$HIGH_BITS = i64toi32_i32$1;
-  return i64toi32_i32$2 | 0;
- }
- 
- function $8(x) {
-  x = Math_fround(x);
-  var i64toi32_i32$0 = Math_fround(0), i64toi32_i32$1 = 0, $4_1 = 0, $5_1 = 0, i64toi32_i32$2 = 0;
-  i64toi32_i32$0 = x;
-  if (Math_fround(Math_abs(i64toi32_i32$0)) >= Math_fround(1.0)) {
-   if (i64toi32_i32$0 > Math_fround(0.0)) $4_1 = ~~Math_fround(Math_min(Math_fround(Math_floor(Math_fround(i64toi32_i32$0 / Math_fround(4294967296.0)))), Math_fround(Math_fround(4294967296.0) - Math_fround(1.0)))) >>> 0; else $4_1 = ~~Math_fround(Math_ceil(Math_fround(Math_fround(i64toi32_i32$0 - Math_fround(~~i64toi32_i32$0 >>> 0 >>> 0)) / Math_fround(4294967296.0)))) >>> 0;
-   $5_1 = $4_1;
-  } else $5_1 = 0;
-  i64toi32_i32$1 = $5_1;
-  i64toi32_i32$1 = i64toi32_i32$1;
-  i64toi32_i32$2 = ~~i64toi32_i32$0 >>> 0;
-  i64toi32_i32$HIGH_BITS = i64toi32_i32$1;
-  return i64toi32_i32$2 | 0;
- }
- 
- function $9(x) {
-  x = +x;
-  var i64toi32_i32$0 = 0.0, i64toi32_i32$1 = 0, $4_1 = 0, $5_1 = 0, i64toi32_i32$2 = 0;
-  i64toi32_i32$0 = x;
-  if (Math_abs(i64toi32_i32$0) >= 1.0) {
-   if (i64toi32_i32$0 > 0.0) $4_1 = ~~Math_min(Math_floor(i64toi32_i32$0 / 4294967296.0), 4294967296.0 - 1.0) >>> 0; else $4_1 = ~~Math_ceil((i64toi32_i32$0 - +(~~i64toi32_i32$0 >>> 0 >>> 0)) / 4294967296.0) >>> 0;
-   $5_1 = $4_1;
-  } else $5_1 = 0;
-  i64toi32_i32$1 = $5_1;
-  i64toi32_i32$1 = i64toi32_i32$1;
-  i64toi32_i32$2 = ~~i64toi32_i32$0 >>> 0;
-  i64toi32_i32$HIGH_BITS = i64toi32_i32$1;
-  return i64toi32_i32$2 | 0;
- }
- 
- function $10(x) {
-  x = +x;
-  var i64toi32_i32$0 = 0.0, i64toi32_i32$1 = 0, $4_1 = 0, $5_1 = 0, i64toi32_i32$2 = 0;
-  i64toi32_i32$0 = x;
-  if (Math_abs(i64toi32_i32$0) >= 1.0) {
-   if (i64toi32_i32$0 > 0.0) $4_1 = ~~Math_min(Math_floor(i64toi32_i32$0 / 4294967296.0), 4294967296.0 - 1.0) >>> 0; else $4_1 = ~~Math_ceil((i64toi32_i32$0 - +(~~i64toi32_i32$0 >>> 0 >>> 0)) / 4294967296.0) >>> 0;
-   $5_1 = $4_1;
-  } else $5_1 = 0;
-  i64toi32_i32$1 = $5_1;
-  i64toi32_i32$1 = i64toi32_i32$1;
-  i64toi32_i32$2 = ~~i64toi32_i32$0 >>> 0;
-  i64toi32_i32$HIGH_BITS = i64toi32_i32$1;
-  return i64toi32_i32$2 | 0;
- }
- 
- function $11(x) {
-  x = x | 0;
-  return Math_fround(Math_fround(x | 0));
- }
- 
- function $12(x, x$hi) {
-  x = x | 0;
-  x$hi = x$hi | 0;
-  var i64toi32_i32$0 = 0;
-  i64toi32_i32$0 = x$hi;
-  i64toi32_i32$0 = i64toi32_i32$0;
-  return Math_fround(Math_fround(+(x >>> 0) + 4294967296.0 * +(i64toi32_i32$0 | 0)));
- }
- 
- function $13(x) {
-  x = x | 0;
-  return +(+(x | 0));
- }
- 
- function $14(x, x$hi) {
-  x = x | 0;
-  x$hi = x$hi | 0;
-  var i64toi32_i32$0 = 0;
-  i64toi32_i32$0 = x$hi;
-  i64toi32_i32$0 = i64toi32_i32$0;
-  return +(+(x >>> 0) + 4294967296.0 * +(i64toi32_i32$0 | 0));
- }
- 
- function $15(x) {
-  x = x | 0;
-  return Math_fround(Math_fround(x >>> 0));
- }
- 
- function $16(x, x$hi) {
-  x = x | 0;
-  x$hi = x$hi | 0;
-  var i64toi32_i32$0 = 0;
-  i64toi32_i32$0 = x$hi;
-  i64toi32_i32$0 = i64toi32_i32$0;
-  return Math_fround(Math_fround(+(x >>> 0) + 4294967296.0 * +(i64toi32_i32$0 >>> 0)));
- }
- 
- function $17(x) {
-  x = x | 0;
-  return +(+(x >>> 0));
- }
- 
- function $18(x, x$hi) {
-  x = x | 0;
-  x$hi = x$hi | 0;
-  var i64toi32_i32$0 = 0;
-  i64toi32_i32$0 = x$hi;
-  i64toi32_i32$0 = i64toi32_i32$0;
-  return +(+(x >>> 0) + 4294967296.0 * +(i64toi32_i32$0 >>> 0));
- }
- 
- function $19(x) {
-  x = Math_fround(x);
-  return +(+x);
- }
- 
- function $20(x) {
-  x = +x;
-  return Math_fround(Math_fround(x));
- }
- 
- function $21(x) {
-  x = x | 0;
-  return Math_fround((HEAP32[0] = x, HEAPF32[0]));
- }
- 
- function $22(x, x$hi) {
-  x = x | 0;
-  x$hi = x$hi | 0;
-  var i64toi32_i32$0 = 0, wasm2asm_i32$0 = 0, wasm2asm_i32$1 = 0;
-  i64toi32_i32$0 = x$hi;
-  i64toi32_i32$0 = i64toi32_i32$0;
-  wasm2asm_i32$0 = 0;
-  wasm2asm_i32$1 = x;
-  HEAP32[wasm2asm_i32$0 >> 2] = wasm2asm_i32$1;
-  wasm2asm_i32$0 = 0;
-  wasm2asm_i32$1 = i64toi32_i32$0;
-  HEAP32[(wasm2asm_i32$0 + 4 | 0) >> 2] = wasm2asm_i32$1;
-  return +(+HEAPF64[0 >> 3]);
- }
- 
- function $23(x) {
-  x = Math_fround(x);
-  return (HEAPF32[0] = x, HEAP32[0] | 0) | 0;
- }
- 
- function $24(x) {
-  x = +x;
-  var i64toi32_i32$0 = 0, i64toi32_i32$1 = 0, wasm2asm_i32$0 = 0, wasm2asm_f64$0 = 0.0;
-  wasm2asm_i32$0 = 0;
-  wasm2asm_f64$0 = x;
-  HEAPF64[wasm2asm_i32$0 >> 3] = wasm2asm_f64$0;
-  i64toi32_i32$0 = HEAP32[(0 + 4 | 0) >> 2] | 0;
-  i64toi32_i32$0 = i64toi32_i32$0;
-  i64toi32_i32$1 = HEAP32[0 >> 2] | 0;
-  i64toi32_i32$HIGH_BITS = i64toi32_i32$0;
-  return i64toi32_i32$1 | 0;
- }
- 
- return {
-  i64_extend_s_i32: $0, 
-  i64_extend_u_i32: $1, 
-  i32_wrap_i64: $2, 
-  i32_trunc_s_f32: $3, 
-  i32_trunc_u_f32: $4, 
-  i32_trunc_s_f64: $5, 
-  i32_trunc_u_f64: $6, 
-  i64_trunc_s_f32: $7, 
-  i64_trunc_u_f32: $8, 
-  i64_trunc_s_f64: $9, 
-  i64_trunc_u_f64: $10, 
-  f32_convert_s_i32: $11, 
-  f32_convert_s_i64: $12, 
-  f64_convert_s_i32: $13, 
-  f64_convert_s_i64: $14, 
-  f32_convert_u_i32: $15, 
-  f32_convert_u_i64: $16, 
-  f64_convert_u_i32: $17, 
-  f64_convert_u_i64: $18, 
-  f64_promote_f32: $19, 
-  f32_demote_f64: $20, 
-  f32_reinterpret_i32: $21, 
-  f64_reinterpret_i64: $22, 
-  i32_reinterpret_f32: $23, 
-  i64_reinterpret_f64: $24
- };
-}
-