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LibJS/Bytecode: Determine strict mode on an executable basis

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An executable is generated for the top-level script and for each
function. Strict mode can only be changed with the first statement of
the top-level script and each function, which corresponds directly to
Executable.
This commit is contained in:
Luke Wilde 2022-07-17 18:56:36 +01:00 • committed by Linus Groh
parent 37ab7cc694
commit 8568d18d7d
3 changed files with 15 additions and 3 deletions
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14
Userland/Libraries/LibJS/Bytecode/Generator.cpp
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@ -41,12 +41,24 @@ CodeGenerationErrorOr<NonnullOwnPtr<Executable>> Generator::generate(ASTNode con
generator.emit<Bytecode::Op::Yield>(nullptr);
}
}
bool is_strict_mode = false;
if (is<Program>(node))
is_strict_mode = static_cast<Program const&>(node).is_strict_mode();
else if (is<FunctionBody>(node))
is_strict_mode = static_cast<FunctionBody const&>(node).in_strict_mode();
else if (is<FunctionDeclaration>(node))
is_strict_mode = static_cast<FunctionDeclaration const&>(node).is_strict_mode();
else if (is<FunctionExpression>(node))
is_strict_mode = static_cast<FunctionExpression const&>(node).is_strict_mode();
return adopt_own(*new Executable {
.name = {},
.basic_blocks = move(generator.m_root_basic_blocks),
.string_table = move(generator.m_string_table),
.identifier_table = move(generator.m_identifier_table),
.number_of_registers = generator.m_next_register });
.number_of_registers = generator.m_next_register,
.is_strict_mode = is_strict_mode });
}
void Generator::grow(size_t additional_size)