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LibJS: Let Completion::update_empty() take an Optional<Value>

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It also needs to be able to take what the spec calls 'empty', which is
an Optional<Value> in this case (*not* an empty JS::Value). The common
use case is updating a completion with another completion, that may also
have an empty [[Value]] slot.
This commit is contained in:
Linus Groh 2022-01-02 20:48:38 +01:00
parent 13777d4886
commit 7565b1fda8
Notes: sideshowbarker 2024-07-17 21:46:51 +09:00 
Author: https://github.com/linusg
Commit: https://github.com/SerenityOS/serenity/commit/7565b1fda83
1 changed files with 2 additions and 2 deletions
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4
Userland/Libraries/LibJS/Runtime/Completion.h
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@ -80,7 +80,7 @@ public:
}
// 6.2.3.4 UpdateEmpty ( completionRecord, value ), https://tc39.es/ecma262/#sec-updateempty
Completion update_empty(Value value) const
Completion update_empty(Optional<Value> value) const
{
// 1. Assert: If completionRecord.[[Type]] is either return or throw, then completionRecord.[[Value]] is not empty.
if (m_type == Type::Return || m_type == Type::Throw)
@ -91,7 +91,7 @@ public:
return *this;
// 3. Return Completion { [[Type]]: completionRecord.[[Type]], [[Value]]: value, [[Target]]: completionRecord.[[Target]] }.
return { m_type, value, m_target };
return { m_type, move(value), m_target };
}
private: