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LibJS: Implement generator functions (only in bytecode mode)

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This commit is contained in:
Ali Mohammad Pur 2021-06-11 01:38:30 +04:30 • committed by Andreas Kling
parent c53a86a3fe
commit 3234697eca
21 changed files with 407 additions and 34 deletions
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25
Userland/Libraries/LibJS/Bytecode/Op.h
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@ -184,8 +184,6 @@ public:
void execute(Bytecode::Interpreter&) const;
String to_string(Bytecode::Executable const&) const;
size_t length() const { return sizeof(*this) + sizeof(Register) * m_element_count; }
private:
size_t m_element_count { 0 };
Register m_elements[];
@ -462,6 +460,28 @@ private:
Label m_resume_target;
};
class Yield final : public Instruction {
public:
constexpr static bool IsTerminator = true;
explicit Yield(Label continuation_label)
: Instruction(Type::Yield)
, m_continuation_label(continuation_label)
{
}
explicit Yield(std::nullptr_t)
: Instruction(Type::Yield)
{
}
void execute(Bytecode::Interpreter&) const;
String to_string(Bytecode::Executable const&) const;
private:
Optional<Label> m_continuation_label;
};
class PushLexicalEnvironment final : public Instruction {
public:
PushLexicalEnvironment(HashMap<u32, Variable> variables)
@ -472,6 +492,7 @@ public:
void execute(Bytecode::Interpreter&) const;
String to_string(Bytecode::Executable const&) const;
private:
HashMap<u32, Variable> m_variables;
};
}