Merge branch '51-optimize-the-c-generator-for-speed' into 'main'
Resolve "Optimize the C# generator for speed" Closes #51 and #52 See merge request open-source/dotnet/i18n-commander!27
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commit
b940811232
@ -43,15 +43,14 @@ public class DotnetBigFile : IGenerator
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await using var fileStream = new FileStream(pathTemp, FileMode.CreateNew, FileAccess.Write, FileShare.None);
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await using var writer = new StreamWriter(fileStream, Encoding.UTF8);
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await writer.WriteLineAsync($"namespace {await AppSettings.GetGeneratorDotnetNamespace()};");
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await writer.WriteLineAsync("""using System.Globalization;""");
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await writer.WriteLineAsync($"""namespace {await AppSettings.GetGeneratorDotnetNamespace()};""");
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await this.CreateStaticClass(writer, "I18N", 0, async (streamWriter, indention) =>
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{
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var indentionString = this.AddIndention(indention);
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var buildTime = DateTime.UtcNow;
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await writer.WriteLineAsync($"{indentionString}public static readonly string BUILD_TIME = \"{buildTime:yyyy.MM.dd HH:mm:ss}\";");
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await writer.WriteLineAsync($"{indentionString}public static readonly long BUILD_TIME_TICKS = {buildTime.Ticks};");
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await writer.WriteLineAsync();
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await writer.WriteLineAsync($"{indentionString}private static int PREVIOUS_CULTURE = -1;");
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// Go through the first layer of sections:
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var sections = await SectionProcessor.LoadLayer(0);
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@ -114,51 +113,45 @@ public class DotnetBigFile : IGenerator
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private async Task TransformTextElement(TextWriter writer, int indention, TextElement textElement)
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{
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var indentionString = this.AddIndention(indention);
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var indentionPropString = this.AddIndention(indention + 1);
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var indentionPropInner1String = this.AddIndention(indention + 2);
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var indentionPropInner2String = this.AddIndention(indention + 3);
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var indentionPropInner3String = this.AddIndention(indention + 4);
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var indentionInner1 = this.AddIndention(indention + 1);
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var indentionInner2 = this.AddIndention(indention + 2);
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await writer.WriteLineAsync($"""{indentionString}public static string E_{textElement.Code}() => E_{textElement.Code}(CultureInfo.CurrentCulture);""");
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await writer.WriteLineAsync($"""{indentionString}public static string E_{textElement.Code}(CultureInfo culture)""");
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await writer.WriteLineAsync($$"""{{indentionString}}{"""); // opening {
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// Write the default culture's text:
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var defaultCultureTranslation = textElement.Translations.FirstOrDefault(x => x.Culture == CULTURE_CODES[DEFAULT_CULTURE_INDEX]);
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var defaultCultureText = defaultCultureTranslation?.Text ?? string.Empty;
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await this.WriteTextContent(writer, indentionInner1, textElement.IsMultiLine, defaultCultureText, variableName: "defaultText");
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await writer.WriteLineAsync($"""{indentionInner1}var name = culture.Name;""");
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await writer.WriteLineAsync($"""{indentionInner1}if(name.Length < 2)""");
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await writer.WriteLineAsync($$"""{{indentionInner1}}{"""); // opening {
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await writer.WriteLineAsync($"""{indentionInner2}return defaultText;""");
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await writer.WriteLineAsync($$"""{{indentionInner1}}}"""); // closing }
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await writer.WriteLineAsync($"{indentionString}private static string E_{textElement.Code}_CACHE = \"\";");
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await writer.WriteLineAsync($"{indentionString}public static string E_{textElement.Code}");
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await writer.WriteLineAsync($"{indentionString}{{");
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await writer.WriteLineAsync($"{indentionPropString}get");
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await writer.WriteLineAsync($"{indentionPropString}{{");
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await writer.WriteLineAsync($"{indentionPropInner1String}var currentCulture = CultureInfo.CurrentCulture.Name;");
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await writer.WriteLineAsync($"{indentionPropInner1String}if(PREVIOUS_CULTURE == currentCulture.GetHashCode())");
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await writer.WriteLineAsync($"{indentionPropInner2String}return E_{textElement.Code}_CACHE;");
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await writer.WriteLineAsync($"{indentionPropInner1String}else");
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await writer.WriteLineAsync($"{indentionPropInner1String}{{");
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await writer.WriteLineAsync($"{indentionPropInner2String}PREVIOUS_CULTURE = currentCulture.GetHashCode();");
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for (var cultureIndex = 0; cultureIndex < CULTURE_CODES.Count; cultureIndex++)
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{
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if(cultureIndex == 0)
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await writer.WriteLineAsync($"{indentionPropInner2String}if (currentCulture.StartsWith(\"{CULTURE_CODES[cultureIndex]}\", StringComparison.InvariantCultureIgnoreCase))");
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else
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await writer.WriteLineAsync($"{indentionPropInner2String}else if (currentCulture.StartsWith(\"{CULTURE_CODES[cultureIndex]}\", StringComparison.InvariantCultureIgnoreCase))");
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await writer.WriteLineAsync($"""{indentionInner1}if ({this.CreateIf(CULTURE_CODES[cultureIndex])})""");
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await writer.WriteLineAsync($$"""{{indentionInner1}}{"""); // opening {
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await writer.WriteLineAsync($"{indentionPropInner2String}{{");
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var cultureTranslation = textElement.Translations.FirstOrDefault(x => x.Culture == CULTURE_CODES[cultureIndex]);
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var cultureText = cultureTranslation?.Text ?? string.Empty;
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await writer.WriteLineAsync($"{indentionPropInner3String}var text = @\"{Utils.MadeVerbatimStringLiteral(cultureText)}\";");
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await writer.WriteLineAsync($"{indentionPropInner3String}E_{textElement.Code}_CACHE = text;");
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await writer.WriteLineAsync($"{indentionPropInner3String}return text;");
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await writer.WriteLineAsync($"{indentionPropInner2String}}}");
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if(cultureIndex == DEFAULT_CULTURE_INDEX)
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await writer.WriteLineAsync($"""{indentionInner2}return defaultText;""");
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else
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{
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var cultureTranslation = textElement.Translations.FirstOrDefault(x => x.Culture == CULTURE_CODES[cultureIndex]);
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var cultureText = cultureTranslation?.Text ?? string.Empty;
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await this.WriteTextContent(writer, indentionInner2, textElement.IsMultiLine, cultureText);
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await writer.WriteLineAsync($"""{indentionInner2}return text;""");
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}
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await writer.WriteLineAsync($$"""{{indentionInner1}}}"""); // closing }
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}
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// Add the default case:
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await writer.WriteLineAsync($"{indentionPropInner2String}else");
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await writer.WriteLineAsync($"{indentionPropInner2String}{{");
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var defaultCultureTranslation = textElement.Translations.FirstOrDefault(x => x.Culture == CULTURE_CODES[DEFAULT_CULTURE_INDEX]);
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var defaultCultureText = defaultCultureTranslation?.Text ?? string.Empty;
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await writer.WriteLineAsync($"{indentionPropInner3String}var text = @\"{Utils.MadeVerbatimStringLiteral(defaultCultureText)}\";");
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await writer.WriteLineAsync($"{indentionPropInner3String}E_{textElement.Code}_CACHE = text;");
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await writer.WriteLineAsync($"{indentionPropInner3String}return text;");
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await writer.WriteLineAsync($"{indentionPropInner2String}}}");
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await writer.WriteLineAsync($"{indentionPropInner1String}}}");
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await writer.WriteLineAsync($"{indentionPropString}}}");
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await writer.WriteLineAsync($"{indentionString}}}");
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await writer.WriteLineAsync($"""{indentionInner1}return defaultText;""");
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await writer.WriteLineAsync($$"""{{indentionString}}}"""); // closing }
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await writer.WriteLineAsync();
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}
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@ -172,4 +165,42 @@ public class DotnetBigFile : IGenerator
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await content(writer, indention + 1);
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await writer.WriteLineAsync($"{indentionString}}}");
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}
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private async Task WriteTextContent(TextWriter writer, string indention, bool isMultiline, string content, string variableName = "text")
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{
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if(isMultiline)
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{
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await writer.WriteLineAsync($"""""""""
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{indention}const string {variableName} = """"""""
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""""""""");
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await writer.WriteLineAsync(content);
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await writer.WriteLineAsync($"""""""""
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"""""""";
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""""""""");
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}
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else
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await writer.WriteLineAsync($"""""""""{indention}const string {variableName} = """"""""{content}"""""""";""""""""");
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}
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private string CreateIf(string cultureCode)
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{
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if (string.IsNullOrWhiteSpace(cultureCode))
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return "false";
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var sb = new StringBuilder();
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var len = cultureCode.Length;
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if (len > 2)
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sb.Append($"""name.Length >= {len} && """);
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for (var i = 0; i < cultureCode.Length; i++)
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{
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sb.Append($"""name[{i}] is '{cultureCode[i]}'""");
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// When this is not the last character, we need to add " && ":
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if (i < cultureCode.Length - 1)
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sb.Append(" && ");
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}
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return sb.ToString();
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}
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}
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@ -47,25 +47,4 @@ internal static class Utils
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return code;
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}
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public static string MadeVerbatimStringLiteral(string text)
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{
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IEnumerable<char> ConvertAll(string source)
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{
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foreach(var c in source)
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if(c == '"')
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{
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yield return '"';
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yield return '"';
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}
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else
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yield return c;
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}
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var sb = new StringBuilder();
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foreach(var c in ConvertAll(text))
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sb.Append(c);
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return sb.ToString();
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}
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}
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@ -2,5 +2,5 @@
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public static class Version
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{
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public static string Text => $"v0.8.6 (2023-02-12), .NET {Environment.Version}";
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public static string Text => $"v0.9.3 (2023-02-12), .NET {Environment.Version}";
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}
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