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Implement realm object and support realms for built-ins and JS functions (#4354)

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- Type for realm objects is introduced (ecma_global_object_t)
- Realm reference is added to built-in objects and ECMAScript functions
- Resolving built-ins, global environments, and scopes require realm object
- Unnecessary global object accesses are removed from the code

Missing: external functions and static snapshot functions have no realm reference

JerryScript-DCO-1.0-Signed-off-by: Zoltan Herczeg zherczeg.u-szeged@partner.samsung.com
This commit is contained in:
Zoltan Herczeg
2020-12-08 14:36:36 +01:00
committed by GitHub
parent 7cb9f808f7
commit df92c86ecf
32 changed files with 1128 additions and 188 deletions
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jerry-core/vm/opcodes.c
+10
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@@ -842,8 +842,18 @@ opfunc_resume_executable_object (vm_executable_object_t *executable_object_p, /*
ecma_object_t *old_new_target = JERRY_CONTEXT (current_new_target);
JERRY_CONTEXT (current_new_target) = NULL;
#if ENABLED (JERRY_BUILTIN_REALMS)
ecma_global_object_t *saved_global_object_p = JERRY_CONTEXT (global_object_p);
ecma_value_t realm_value = ecma_op_function_get_realm (bytecode_header_p);
JERRY_CONTEXT (global_object_p) = (ecma_global_object_t *) ecma_get_object_from_value (realm_value);
#endif /* ENABLED (JERRY_BUILTIN_REALMS) */
ecma_value_t result = vm_execute (&executable_object_p->frame_ctx);
#if ENABLED (JERRY_BUILTIN_REALMS)
JERRY_CONTEXT (global_object_p) = saved_global_object_p;
#endif /* ENABLED (JERRY_BUILTIN_REALMS) */
JERRY_CONTEXT (current_new_target) = old_new_target;
executable_object_p->extended_object.u.class_prop.extra_info &= (uint16_t) ~ECMA_EXECUTABLE_OBJECT_RUNNING;