53 lines
1.9 KiB
C#
53 lines
1.9 KiB
C#
using System.CommandLine;
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using Canon.Generator.GrammarGenerator;
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namespace Canon.Generator.Extensions;
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public static class RootCommandExtension
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{
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public static void AddGrammarCommand(this RootCommand rootCommand)
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{
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Command generateCommand = new("grammar", "Generate grammar parser source files.");
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Argument<string> filenameArgument = new(name: "filename",
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description: "determines the generated file name.",
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getDefaultValue: () => "Canon.g.cs");
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generateCommand.AddArgument(filenameArgument);
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Option<string> namespaceOption = new(name: "--namespace",
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description: "determines the namespace of generated code.",
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getDefaultValue: () => "Canon.Generator.GrammarGenerator");
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generateCommand.AddOption(namespaceOption);
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generateCommand.SetHandler(async (context) =>
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{
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string filename = context.ParseResult.GetValueForArgument(filenameArgument);
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FileInfo generatedFile = new(Path.Combine(Environment.CurrentDirectory, filename));
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if (generatedFile.Exists)
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{
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generatedFile.Delete();
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}
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await using FileStream stream = generatedFile.OpenWrite();
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GenerateCommand command = new();
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string namespaceValue = context.ParseResult.GetValueForOption(namespaceOption) ?? "Canon.Generator.GrammarGenerator";
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await command.GenerateCode(stream, namespaceValue);
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});
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rootCommand.AddCommand(generateCommand);
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}
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public static void AddSyntaxVisitorCommand(this RootCommand rootCommand)
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{
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Command syntaxCommand = new("syntax", "Generate syntax visitor source code.");
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syntaxCommand.SetHandler(async () =>
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{
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await SyntaxVisitorGenerator.SyntaxVisitorGenerator.Generate();
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});
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rootCommand.AddCommand(syntaxCommand);
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}
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}
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