fergalmoran/ladybird
1
0
Fork 0
mirror of https://github.com/fergalmoran/ladybird.git synced 2026-01-09 01:56:21 +00:00
Code Issues Packages Projects Releases Wiki Activity

LibJS: Align codegen AwaitExpressions to YieldExpressions

Browse Source 
We use generators in bytecode to approximate async functions, but the
code generated by AwaitExpressions did not have the value processing
paths that Yield requires, eg the `generator.throw()` path, which is
used by AsyncFunctionDriverWrapper to signal Promise rejections.
This commit is contained in:
Hendiadyoin1
2022-12-25 17:15:29 +01:00
committed by Linus Groh
parent 1f6a0ef6e0
commit de514f29ad
4 changed files with 47 additions and 3 deletions
Download Patch File Download Diff File Expand all files Collapse all files

3
Userland/Libraries/LibJS/Bytecode/Interpreter.cpp
View File

@@ -169,7 +169,7 @@ Interpreter::ValueAndFrame Interpreter::run_and_return_frame(Executable const& e
if (!m_return_value.is_empty()) {
return_value = m_return_value;
m_return_value = {};
} else if (!m_saved_return_value.is_null()) {
} else if (!m_saved_return_value.is_null() && m_saved_exception.is_null()) {
return_value = m_saved_return_value.value();
m_saved_return_value = {};
}
@@ -192,6 +192,7 @@ Interpreter::ValueAndFrame Interpreter::run_and_return_frame(Executable const& e
if (!m_saved_exception.is_null()) {
Value thrown_value = m_saved_exception.value();
m_saved_exception = {};
m_saved_return_value = {};
if (auto* register_window = frame.get_pointer<NonnullOwnPtr<RegisterWindow>>())
return { throw_completion(thrown_value), move(*register_window) };
return { throw_completion(thrown_value), nullptr };