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LibJS: Implement destructuring assignments and function parameters

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This commit is contained in:
Ali Mohammad Pur
2021-05-29 16:03:19 +04:30
committed by Ali Mohammad Pur
parent 1123af361d
commit 7a00d6d9c8
9 changed files with 533 additions and 83 deletions
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20
Userland/Libraries/LibJS/Interpreter.cpp
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@@ -102,11 +102,27 @@ void Interpreter::enter_scope(const ScopeNode& scope_node, ScopeType scope_type,
for (auto& declaration : scope_node.variables()) {
for (auto& declarator : declaration.declarations()) {
if (is<Program>(scope_node)) {
global_object.put(declarator.id().string(), js_undefined());
declarator.target().visit(
[&](const NonnullRefPtr<Identifier>& id) {
global_object.put(id->string(), js_undefined());
},
[&](const NonnullRefPtr<BindingPattern>& binding) {
binding->for_each_assigned_name([&](const auto& name) {
global_object.put(name, js_undefined());
});
});
if (exception())
return;
} else {
scope_variables_with_declaration_kind.set(declarator.id().string(), { js_undefined(), declaration.declaration_kind() });
declarator.target().visit(
[&](const NonnullRefPtr<Identifier>& id) {
scope_variables_with_declaration_kind.set(id->string(), { js_undefined(), declaration.declaration_kind() });
},
[&](const NonnullRefPtr<BindingPattern>& binding) {
binding->for_each_assigned_name([&](const auto& name) {
scope_variables_with_declaration_kind.set(name, { js_undefined(), declaration.declaration_kind() });
});
});
}
}
}