diff options
Diffstat (limited to 'ext/wasm/common/whwasmutil.js')
| -rw-r--r-- | ext/wasm/common/whwasmutil.js | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/ext/wasm/common/whwasmutil.js b/ext/wasm/common/whwasmutil.js index c296a946b..e6f32abfa 100644 --- a/ext/wasm/common/whwasmutil.js +++ b/ext/wasm/common/whwasmutil.js @@ -247,6 +247,25 @@ self.WhWasmUtilInstaller = function(target){ cache.utf8Encoder = new TextEncoder('utf-8'); /** + For the given IR-like string in the set ('i8', 'i16', 'i32', + 'f32', 'float', 'i64', 'f64', 'double', '*'), or any string value + ending in '*', returns the sizeof for that value + (target.ptrSizeof in the latter case). For any other value, it + returns the undefined value. + */ + target.irSizeof = (n)=>{ + switch(n){ + case 'i8': return 1; + case 'i16': return 2; + case 'i32': case 'f32': case 'float': return 4; + case 'i64': case 'f64': case 'double': return 8; + case '*': return ptrSizeof; + default: + return (''+n).endsWith('*') ? ptrSizeof : undefined; + } + }; + + /** If (cache.heapSize !== cache.memory.buffer.byteLength), i.e. if the heap has grown since the last call, updates cache.HEAPxyz. Returns the cache object. |