Canon/Canon.Server/Services/CompilerService.cs
ichirinko 20e82c6f4f fix:修复前端bug (#83)
Co-authored-by: jackfiled <xcrenchangjun@outlook.com>
Reviewed-on: PostGuard/Canon#83
Co-authored-by: ichirinko <1621543655@qq.com>
Co-committed-by: ichirinko <1621543655@qq.com>
2024-05-13 22:29:32 +08:00

88 lines
2.8 KiB
C#

using Canon.Core.Abstractions;
using Canon.Core.Exceptions;
using Canon.Core.LexicalParser;
using Canon.Core.SemanticParser;
using Canon.Core.SyntaxNodes;
using Canon.Server.DataTransferObjects;
using Canon.Server.Entities;
using Canon.Server.Models;
using Microsoft.EntityFrameworkCore;
using MongoDB.Bson;
namespace Canon.Server.Services;
public class CompilerService(
ILexer lexer,
IGrammarParser grammarParser,
SyntaxTreeTraveller traveller,
CompileDbContext dbContext,
GridFsService gridFsService,
SyntaxTreePresentationService syntaxTreePresentationService,
ILogger<CompilerService> logger)
{
public async Task<CompileResponse> Compile(SourceCode sourceCode)
{
logger.LogInformation("Try to compile: '{}'.", sourceCode.Code);
IQueryable<CompileResult> resultQuery = from item in dbContext.CompileResults
where item.SourceCode == sourceCode.Code
select item;
CompileResult? cachedResult = await resultQuery.FirstOrDefaultAsync();
if (cachedResult is not null)
{
return new CompileResponse(cachedResult);
}
CodeReader reader = new(sourceCode);
ProgramStruct root;
try
{
IEnumerable<SemanticToken> tokens = lexer.Tokenize(reader);
root = grammarParser.Analyse(tokens);
}
catch (CanonException e)
{
CompileResult errorResult = new()
{
Id = ObjectId.GenerateNewId(),
Error = true,
SourceCode = sourceCode.Code,
CompiledCode = string.Empty,
SytaxTreeImageFilename = string.Empty,
CompileTime = DateTime.Now,
CompileInformation = e.Message
};
await dbContext.CompileResults.AddAsync(errorResult);
await dbContext.SaveChangesAsync();
return new CompileResponse(errorResult);
}
await using Stream imageStream = syntaxTreePresentationService.Present(root);
string filename = await gridFsService.UploadStream(imageStream, "image/png");
ICompilerLogger compilerLogger = new CompilerLogger();
CodeGeneratorVisitor visitor = new(compilerLogger);
traveller.Travel(root, visitor);
CompileResult result = new()
{
Id = ObjectId.GenerateNewId(),
Error = visitor.IsError,
SourceCode = sourceCode.Code,
CompiledCode = visitor.Builder.Build(),
SytaxTreeImageFilename = filename,
CompileTime = DateTime.Now,
CompileInformation = compilerLogger.Build()
};
await dbContext.CompileResults.AddAsync(result);
await dbContext.SaveChangesAsync();
return new CompileResponse(result);
}
}