@thi.ng/wasm-api-bindgen/internal/align.js

Polyglot bindings code generators (TS/JS, Zig, C11) for hybrid WebAssembly projects

import { SIZEOF } from "@thi.ng/api/typedarray";
import { align as $align } from "@thi.ng/binary/align";
import { ceilPow2 } from "@thi.ng/binary/pow";
import { isStruct, isUnion } from "./utils.js";
const ALIGN_C = {
  align: (field) => {
    let align = SIZEOF[field.type];
    if (field.tag === "vec") {
      align *= ceilPow2(field.len);
    }
    return align;
  },
  size: (size, align) => $align(size, align),
  offset: (offset, align) => $align(offset, align)
};
const ALIGN_PACKED = {
  align: () => 1,
  size: (size) => size,
  offset: (offset) => offset
};
const selectAlignment = (type) => isStruct(type) || isUnion(type) ? type.align || ALIGN_C : ALIGN_C;
export {
  ALIGN_C,
  ALIGN_PACKED,
  selectAlignment
};