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51 lines
1.5 KiB
C++
51 lines
1.5 KiB
C++
/*
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* Copyright (c) 2021, Andreas Kling <kling@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 <LibJS/AST.h>
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#include <LibJS/Lexer.h>
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#include <LibJS/Parser.h>
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#include <LibJS/Runtime/VM.h>
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#include <LibJS/Script.h>
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namespace JS {
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// 16.1.5 ParseScript ( sourceText, realm, hostDefined ), https://tc39.es/ecma262/#sec-parse-script
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Result<NonnullGCPtr<Script>, Vector<ParserError>> Script::parse(StringView source_text, Realm& realm, StringView filename, HostDefined* host_defined, size_t line_number_offset)
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{
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// 1. Let script be ParseText(sourceText, Script).
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auto parser = Parser(Lexer(source_text, filename, line_number_offset));
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auto script = parser.parse_program();
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// 2. If script is a List of errors, return body.
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if (parser.has_errors())
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return parser.errors();
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// 3. Return Script Record { [[Realm]]: realm, [[ECMAScriptCode]]: script, [[HostDefined]]: hostDefined }.
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return realm.heap().allocate_without_realm<Script>(realm, filename, move(script), host_defined);
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}
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Script::Script(Realm& realm, StringView filename, NonnullRefPtr<Program> parse_node, HostDefined* host_defined)
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: m_realm(realm)
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, m_parse_node(move(parse_node))
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, m_filename(filename)
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, m_host_defined(host_defined)
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{
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}
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Script::~Script()
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{
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}
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void Script::visit_edges(Cell::Visitor& visitor)
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{
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Base::visit_edges(visitor);
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visitor.visit(m_realm);
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if (m_host_defined)
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m_host_defined->visit_host_defined_self(visitor);
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}
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}
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