diff options
Diffstat (limited to 'ext/wasm/api/sqlite3-api-prologue.js')
| -rw-r--r-- | ext/wasm/api/sqlite3-api-prologue.js | 17 |
1 files changed, 15 insertions, 2 deletions
diff --git a/ext/wasm/api/sqlite3-api-prologue.js b/ext/wasm/api/sqlite3-api-prologue.js index 307ab43f5..9bac70448 100644 --- a/ext/wasm/api/sqlite3-api-prologue.js +++ b/ext/wasm/api/sqlite3-api-prologue.js @@ -1020,12 +1020,20 @@ self.sqlite3ApiBootstrap = function sqlite3ApiBootstrap( to the memory. On error, returns throws a WasmAllocError. The memory must eventually be released using restore(). + If n is a string, it must be a WASM "IR" value in the set + accepted by wasm.irSizeof(), which is mapped to the size of + that data type. If passed a string not in that set, it throws a + WasmAllocError. + This method always adjusts the given value to be a multiple of 8 bytes because failing to do so can lead to incorrect results when reading and writing 64-bit values from/to the WASM heap. Similarly, the returned address is always 8-byte aligned. */ - alloc: (n)=>{ + alloc: function(n){ + if('string'===typeof n && !(n = wasm.irSizeof(n))){ + WasmAllocError.toss("Invalid value for pstack.alloc(",arguments[0],")"); + } return wasm.exports.sqlite3_wasm_pstack_alloc(n) || WasmAllocError.toss("Could not allocate",n, "bytes from the pstack."); @@ -1035,6 +1043,8 @@ self.sqlite3ApiBootstrap = function sqlite3ApiBootstrap( returns the addresses as an array of n element, each holding the address of one chunk. + sz may optionally be an IR string accepted by wasm.irSizeof(). + Throws a WasmAllocError if allocation fails. Example: @@ -1043,7 +1053,10 @@ self.sqlite3ApiBootstrap = function sqlite3ApiBootstrap( const [p1, p2, p3] = wasm.pstack.allocChunks(3,4); ``` */ - allocChunks: (n,sz)=>{ + allocChunks: function(n,sz){ + if('string'===typeof sz && !(sz = wasm.irSizeof(sz))){ + WasmAllocError.toss("Invalid size value for allocChunks(",arguments[1],")"); + } const mem = wasm.pstack.alloc(n * sz); const rc = []; let i = 0, offset = 0; |