Function applyImportAndExportNameChanges

tools/acorn-optimizer.mjs:466–499

(ast)

// Apply import/export name changes (after minifying them)
function applyImportAndExportNameChanges(ast) {
  const mapping = extraInfo.mapping;
  fullWalk(ast, (node) => {
    if (isWasmImportsAssign(node)) {
      const assignedObject = getWasmImportsValue(node);
      assignedObject.properties.forEach((item) => {
        if (mapping[item.key.name]) {
          item.key.name = mapping[item.key.name];
        }
      });
    } else if (node.type === 'AssignmentExpression') {
      const value = node.right;
      if (isExportUse(value)) {
        const name = value.property.value;
        if (mapping[name]) {
          setLiteralValue(value.property, mapping[name]);
        }
      }
    } else if (node.type === 'CallExpression' && isExportUse(node.callee)) {
      // wasmExports["___wasm_call_ctors"](); -> wasmExports["M"]();
      const callee = node.callee;
      const name = callee.property.value;
      if (mapping[name]) {
        setLiteralValue(callee.property, mapping[name]);
      }
    } else if (isExportUse(node)) {
      const prop = node.property;
      const name = prop.value;
      if (mapping[name]) {
        setLiteralValue(prop, mapping[name]);
      }
    }
  });
}

// A static dyncall is dynCall('vii', ..), which is actually static even
// though we call dynCall() - we see the string signature statically.