web.dart 1.8 KB

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  1. // ignore_for_file: prefer_function_declarations_over_variables, non_constant_identifier_names, no_leading_underscores_for_local_identifiers
  2. import 'dart:convert' as cvt;
  3. import 'package:js/js.dart';
  4. import 'common.dart';
  5. @JS("Module.ccall")
  6. external dynamic ccall(String name, String? returnType, List<String> argTypes, List<dynamic> args);
  7. class _Bindings
  8. {
  9. static final pkpy_delete = (dynamic p) => ccall("pkpy_delete", null, ["number"], [p]);
  10. static final pkpy_new_repl = (dynamic vm) => ccall("pkpy_new_repl", "number", ["number"], [vm]);
  11. static final pkpy_repl_input = (dynamic r, String line) => ccall("pkpy_repl_input", "number", ["number", "string"], [r, line]);
  12. static final pkpy_new_vm = (bool use_stdio) => ccall("pkpy_new_vm", "number", ["boolean"], [use_stdio]);
  13. static final pkpy_vm_add_module = (dynamic vm, String name, String source) => ccall("pkpy_vm_add_module", null, ["number", "string", "string"], [vm, name, source]);
  14. static final pkpy_vm_eval = (dynamic vm, String source) => ccall("pkpy_vm_eval", "string", ["number", "string"], [vm, source]);
  15. static final pkpy_vm_exec = (dynamic vm, String source) => ccall("pkpy_vm_exec", null, ["number", "string"], [vm, source]);
  16. static final pkpy_vm_get_global = (dynamic vm, String name) => ccall("pkpy_vm_get_global", "string", ["number", "string"], [vm, name]);
  17. static final pkpy_vm_read_output = (dynamic vm) => ccall("pkpy_vm_read_output", "string", ["number"], [vm]);
  18. }
  19. class REPL {
  20. late final dynamic pointer;
  21. REPL(VM vm) {
  22. pointer = _Bindings.pkpy_new_repl(vm.pointer);
  23. }
  24. void dispose() {
  25. _Bindings.pkpy_delete(pointer);
  26. }
  27. /// Input a source line to an interactive console.
  28. int input(String line)
  29. {
  30. var ret = _Bindings.pkpy_repl_input(pointer, line);
  31. return ret;
  32. }
  33. }