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4d942cc1d0
Now that we have the beginnings of a parser, let's take the script to run as a command-line argument and move all the test scripts into /home/anon/js :^) To run a script, simply use "js": $ js my-script.js To get an AST dump before execution, you can use "js -A"
74 lines
2.6 KiB
C++
74 lines
2.6 KiB
C++
/*
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* Copyright (c) 2020, Andreas Kling <kling@serenityos.org>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <AK/ByteBuffer.h>
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#include <AK/NonnullOwnPtr.h>
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#include <LibCore/ArgsParser.h>
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#include <LibCore/File.h>
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#include <LibJS/AST.h>
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#include <LibJS/Interpreter.h>
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#include <LibJS/Object.h>
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#include <LibJS/Parser.h>
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#include <LibJS/PrimitiveString.h>
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#include <LibJS/Value.h>
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#include <stdio.h>
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#define PROGRAM 6
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int main(int argc, char** argv)
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{
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bool dump_ast = false;
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const char* script_path = nullptr;
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Core::ArgsParser args_parser;
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args_parser.add_option(dump_ast, "Dump the AST", "ast-dump", 'A');
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args_parser.add_positional_argument(script_path, "Path to script file", "script");
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args_parser.parse(argc, argv);
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auto file = Core::File::construct(script_path);
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if (!file->open(Core::IODevice::ReadOnly)) {
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fprintf(stderr, "Failed to open %s: %s\n", script_path, file->error_string());
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return 1;
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}
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auto file_contents = file->read_all();
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JS::Interpreter interpreter;
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auto program = JS::Parser(JS::Lexer(file_contents)).parse_program();
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if (dump_ast)
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program->dump(0);
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auto result = interpreter.run(*program);
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dbg() << "Interpreter returned " << result;
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printf("%s\n", result.to_string().characters());
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dbg() << "Collecting garbage on exit...";
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interpreter.heap().collect_garbage();
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return 0;
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}
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