8b449214af
By inserting the stack frames in the correct order we can improve the runtime for the test-js test suite by about 20%.
42 lines
1.3 KiB
C++
42 lines
1.3 KiB
C++
/*
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* Copyright (c) 2020, Andreas Kling <kling@serenityos.org>
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* Copyright (c) 2021, Linus Groh <linusg@serenityos.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#include <AK/String.h>
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#include <LibJS/AST.h>
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#include <LibJS/Interpreter.h>
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#include <LibJS/Runtime/Exception.h>
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#include <LibJS/Runtime/VM.h>
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namespace JS {
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Exception::Exception(Value value)
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: m_value(value)
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{
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auto& vm = this->vm();
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m_traceback.ensure_capacity(vm.call_stack().size());
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for (ssize_t i = vm.call_stack().size() - 1; i >= 0; i--) {
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auto* call_frame = vm.call_stack()[i];
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auto function_name = call_frame->function_name;
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if (function_name.is_empty())
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function_name = "<anonymous>";
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m_traceback.empend(
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move(function_name),
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// We might not have an AST node associated with the call frame, e.g. in promise
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// reaction jobs (which aren't called anywhere from the source code).
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// They're not going to generate any _unhandled_ exceptions though, so a meaningless
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// source range is fine.
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call_frame->current_node ? call_frame->current_node->source_range() : SourceRange {});
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}
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}
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void Exception::visit_edges(Visitor& visitor)
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{
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Cell::visit_edges(visitor);
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visitor.visit(m_value);
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}
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}
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