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1107 lines (1056 loc) · 45.8 KB
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using System;
using System.Collections;
using System.Collections.Generic;
using System.Diagnostics;
using System.IO;
using System.Linq;
using System.Reflection;
using System.Text;
using System.Text.RegularExpressions;
using CodeMinion.Core.Attributes;
using CodeMinion.Core.Helpers;
using CodeMinion.Core.Models;
using Newtonsoft.Json;
using Newtonsoft.Json.Linq;
using SliceAndDice;
namespace CodeMinion.Core
{
public class CodeGenerator
{
public CodeGenerator()
{
LoadTemplates();
}
public string CopyrightNotice { get; set; }
public List<StaticApi> StaticApis { get; set; } = new List<StaticApi>();
public List<DynamicApi> DynamicApis { get; set; } = new List<DynamicApi>();
public List<ApiClass> ApiClasses { get; set; } = new List<ApiClass>();
public bool PrintModelJson { get; set; } = false;
public string NameSpace { get; set; } = "Numpy";
public string StaticModuleName { get; set; } = "np";
public string PythonModuleName { get; set; } = "numpy";
public List<Action<CodeWriter>> InitializationGenerators { get; set; } = new List<Action<CodeWriter>>();
//public bool UsePythonIncluded { get; set; } = true;
public HashSet<string> Usings { get; set; } = new HashSet<string>()
{
@"using System;",
@"using System.Collections;",
@"using System.Collections.Generic;",
@"using System.IO;",
@"using System.Linq;",
@"using System.Runtime.InteropServices;",
@"using System.Text;",
@"using Python.Runtime;",
};
public string StaticApiFilesPath { get; set; }
public string DynamicApiFilesPath { get; set; }
public string ModelsPath { get; set; }
public string TestFilesPath { get; set; }
public List<TestFile> TestFiles { get; set; } = new List<TestFile>();
protected Dictionary<string, FunctionBodyTemplate> _templates;
protected virtual void LoadTemplates()
{
_templates = Assembly.GetEntryAssembly().GetTypes()
.Where(x => x.GetCustomAttribute<TemplateAttribute>() != null)
.Select(x => (FunctionBodyTemplate)Activator.CreateInstance(x)).ToDictionary(x =>
x.GetType().GetCustomAttribute<TemplateAttribute>().ApiFunction);
}
// generate an entire API function declaration
protected virtual void GenerateApiFunction(Declaration decl, CodeWriter s, bool prefix = false, bool @static=false)
{
if (decl.ManualOverride)
return;
//if (decl.Name=="cholesky")
// Debugger.Break();
decl.Sanitize();
if (decl.CommentOut)
s.Out("/*");
var class_names = (decl.GeneratedClassName ?? decl.ClassName ?? "no_name").Split('.');
int levels = class_names.Length - 1;
if (levels > 0)
{
foreach (var name in class_names.Skip(1))
{
s.Out($"public static partial class {EscapeName(name)} {{");
s.Indent();
}
}
GenerateDocString(decl, s);
var retval = GenerateReturnType(decl);
switch (decl)
{
case Function func:
var arguments = GenerateArguments(func);
//var passed_args = GeneratePassedArgs(func);
var generics = func.Generics == null ? "" : $"<{string.Join(",", func.Generics)}>";
var prefix_str = "";
if (prefix && levels > 0)
prefix_str = string.Join("_", class_names.Skip(1)) + "_";
s.Out($"public {(@static ? "static ":"")}{retval} {EscapeName(prefix_str + decl.Name)}{func.SharpOnlyPostfix}{generics}({(@static && func.IsExtensionFunction ? "this " : "")}{arguments})");
s.Block(() =>
{
GenerateFunctionBody(func, s, prefix_str);
});
break;
case Property prop:
s.Out($"public {(@static ? "static " : "")}{prop.Type} {EscapeName(prop.Name)}");
s.Block(() =>
{
s.Out("get", () =>
{
GeneratePropertyGetter(prop, s);
});
s.Out("set", () =>
{
GeneratePropertySetter(prop, s);
});
});
break;
}
if (levels > 0)
{
foreach (var name in class_names.Skip(1))
{
s.Outdent();
s.Out("}");
}
}
if (decl.CommentOut)
s.Out("*/");
if (PrintModelJson)
{
s.Out("// the declaration model:");
s.Out("/*");
s.Out(JObject.FromObject(decl).ToString(Formatting.Indented));
s.Out("*/");
}
s.Break();
}
//protected virtual void GenerateStaticApiRedirection(StaticApi api, Declaration decl, CodeWriter s)
//{
// if (decl.DebuggerBreak)
// Debugger.Break();
// decl.Sanitize();
// if (decl.CommentOut)
// s.Out("/*");
// var class_names = (decl.GeneratedClassName ?? decl.ClassName ?? "no_name").Split('.');
// int levels = class_names.Length - 1;
// if (levels > 0)
// {
// foreach (var name in class_names.Skip(1))
// {
// s.Out($"public static partial class {EscapeName(name)} {{");
// s.Indent();
// }
// }
// GenerateDocString(decl, s);
// var retval = GenerateReturnType(decl);
// switch (decl)
// {
// case Function func:
// var arguments = GenerateArguments(func);
// var passed_args = GeneratePassedArgs(func);
// var generics = func.Generics == null ? "" : $"<{string.Join(",", func.Generics)}>";
// s.Out($"public static {retval} {EscapeName(decl.Name)}{func.SharpOnlyPostfix}{generics}({arguments})");
// var prefix = "";
// if (levels > 0)
// prefix = string.Join("_", class_names.Skip(1)) + "_";
// s.Indent(() => s.Out(
// $"=> {api.ImplName}.Instance.{EscapeName(prefix + decl.Name)}({passed_args});"));
// break;
// case Property prop:
// s.Out($"public static {retval} {EscapeName(decl.Name)}");
// s.Indent(() => s.Out(
// $"=> {api.ImplName}.Instance.{EscapeName(decl.Name)};"));
// break;
// }
// if (levels > 0)
// {
// foreach (var name in class_names.Skip(1))
// {
// s.Outdent();
// s.Out("}");
// }
// }
// if (decl.CommentOut)
// s.Out("*/");
// s.Break();
//}
// generate the argument list between the parentheses of a generated API function
protected virtual string GenerateArguments(Function decl)
{
var s = new StringBuilder();
int i = 0;
foreach (var arg in decl.Arguments)
{
if (arg.Type == "string")
arg.IsValueType = false;
// TODO modifier (if any)
// parameter type
CheckArgument(arg);
s.Append(arg.Type);
if (arg.IsNullable && arg.IsValueType)
s.Append("?");
s.Append(" ");
// parameter name
s.Append(EscapeName(arg.Name));
if (!string.IsNullOrWhiteSpace(arg.DefaultValue))
s.Append($" = {MapDefaultValue(arg)}");
else if (arg.IsNullable)
s.Append($" = null");
i++;
if (i < decl.Arguments.Count)
s.Append(", ");
}
return s.ToString();
}
private string GeneratePassedArgs(Function decl)
{
var s = new StringBuilder();
int i = 0;
foreach (var arg in decl.Arguments)
{
// TODO modifier (if any)
var argname = EscapeName(arg.Name);
if (arg.IsNamedArg)
s.Append($"{argname}:");
s.Append(argname);
i++;
if (i < decl.Arguments.Count)
s.Append(", ");
}
return s.ToString();
}
// maps None to null, etc
protected virtual string MapDefaultValue(Argument arg)
{
switch (arg.DefaultValue)
{
case "None": return "null";
case "True": return "true";
case "False": return "false";
}
return arg.DefaultValue;
}
// list of c# keywords that are not allowed as variable names or parameter names
protected readonly HashSet<string> _disallowed_names = new HashSet<string>()
{
"abstract", "as", "base", "bool", "break",
"byte", "case", "catch", "char", "checked",
"class", "const", "continue", "decimal", "default",
"delegate", "do", "double", "else", "enum",
"event", "explicit", "extern", "false", "finally",
"fixed", "float", "for", "foreach", "goto",
"if", "implicit", "in", "int", "interface",
"internal", "is", "lock", "long", "namespace",
"new", "null", "object", "operator", "out",
"override", "params", "private", "protected", "public",
"readonly", "ref", "return", "sbyte", "sealed",
"short", "sizeof", "stackalloc", "static", "string",
"struct", "switch", "this", "throw", "true",
"try", "typeof", "uint", "ulong", "unchecked",
"unsafe", "ushort", "using", "var", "virtual",
"void", "volatile", "while",
"add", "alias", "async", "await", "dynamic",
"get", "global", "nameof", "partial", "remove",
"set", "value", "when", "where", "yield",
"ascending", "by", "descending", "equals", "from",
"group", "in", "into", "join", "let",
"on", "orderby", "select", "where"
};
// escape a varibale name if it violates C# syntax
protected virtual string EscapeName(string name)
{
if (_disallowed_names.Contains(name))
return "@" + name;
return name;
}
// generates the return type declaration of a generated API function declaration
protected virtual string GenerateReturnType(Declaration decl)
{
if (decl.Returns == null || decl.Returns.Count == 0)
return "void";
else if (decl.Returns.Count == 1)
{
CheckArgument(decl.Returns[0]);
return decl.Returns[0].Type;
}
else
{
return "(" + string.Join(", ", decl.Returns.Select(x => x.Type).ToArray()) + ")";
}
}
// argument type consistency checks
protected virtual void CheckArgument(Argument arg)
{
switch (arg.Type)
{
// basic types
case "bool":
case "int":
case "long":
case "double":
case "float":
arg.IsValueType = true;
break;
case "object":
case "string":
arg.IsValueType = false;
break;
// sequence types
}
}
/// <summary>
/// Generate the xml doc string from the description(s)
/// </summary>
/// <param name="decl"></param>
/// <param name="s"></param>
protected virtual void GenerateDocString(Declaration decl, CodeWriter s)
{
if (string.IsNullOrWhiteSpace(decl.Description))
return;
s.Out("/// <summary>");
var docstring = ProcessDocString(decl.Description);
foreach (var line in Regex.Split(docstring, @"\r?\n"))
s.Out("///\t" + line);
s.Out("/// </summary>");
if (decl is Function)
{
var func = decl as Function;
foreach (var arg in func.Arguments)
{
if (string.IsNullOrWhiteSpace(arg.Description))
continue;
s.Out($"/// <param name=\"{arg.Name}\">"); // note: docstring doesn't want parameters escaped with "@"
docstring = ProcessDocString(arg.Description);
foreach (var line in Regex.Split(docstring, @"\r?\n"))
s.Out("///\t" + line.TrimStart());
s.Out("/// </param>");
}
}
if (decl.Returns.All(rv => string.IsNullOrWhiteSpace(rv.Description)))
return;
s.Out("/// <returns>");
if (decl.Returns.Count == 1)
foreach (var line in Regex.Split(ProcessDocString(decl.Returns[0].Description), @"\r?\n"))
s.Out("///\t" + line);
else
{
s.Out("/// A tuple of:");
foreach (var rv in decl.Returns)
{
s.Out("/// " + rv.Name);
foreach (var line in Regex.Split(rv.Description, @"\r?\n"))
s.Out("///\t" + line);
}
}
s.Out("/// </returns>");
}
protected virtual void GenerateDocString(ApiClass decl, CodeWriter s)
{
if (string.IsNullOrWhiteSpace(decl.DocString))
return;
var docstring= ProcessDocString(decl.DocString);
s.Out("/// <summary>");
foreach (var line in Regex.Split(docstring, @"\r?\n"))
s.Out("///\t" + line);
s.Out("/// </summary>");
}
protected string ProcessDocString(string docstring)
{
if (string.IsNullOrWhiteSpace(docstring))
return docstring;
// insert linebreak after each sentence
var text= Regex.Replace(docstring, @"(?:(?<=\w|\)|\])(?<!\d)|(?<=\s\d))\.(?=(?:\s|$))", ".<br></br>\n", RegexOptions.Multiline);
text = Regex.Replace(text, @"(\r?\n){2,}", "\n\n");
text = Regex.Replace(text.Trim(), "<br></br>$", "");
return text;
}
// generates only the body of the API function declaration
protected virtual void GenerateFunctionBody(Function func, CodeWriter s, string prefix = "")
{
s.Out("//auto-generated code, do not change");
if (_templates.ContainsKey(func.Name))
{
// use generator template instead
_templates[func.Name].GenerateBody(func, s);
return;
}
//if (func.Name=="norm")
// Debugger.Break();
var class_names = (func.ClassName ?? "no_name").Split('.');
int levels = class_names.Length - 1;
if (levels < 1)
{
s.Out("var __self__=self;");
}
else
{
var last = "self";
foreach (var name in class_names.Skip(1))
{
s.Out($"var {EscapeName(name)} = {last}.GetAttr(\"{name}\");");
last = name;
}
s.Out($"var __self__={last};");
}
if (func.Arguments.Any())
{
// first generate the positional args
s.Out($"var pyargs=ToTuple(new object[]");
s.Block(() =>
{
foreach (var arg in func.Arguments.Where(a => a.IsNamedArg == false))
{
var name = EscapeName(arg.Name);
if (!string.IsNullOrWhiteSpace(arg.ConvertToSharpType))
s.Out($"SharpToSharp<{arg.ConvertToSharpType}>({name}),");
else
s.Out($"{name},");
}
}, "{", "});");
// then generate the named args
s.Out($"var kwargs=new PyDict();");
foreach (var arg in func.Arguments.Where(a => a.IsNamedArg == true))
{
var name = EscapeName(arg.Name);
if (!string.IsNullOrWhiteSpace(arg.DefaultValue))
s.Out($"if ({name}!={arg.DefaultValue}) kwargs[\"{arg.Name}\"]=ToPython({name});");
else if (string.IsNullOrWhiteSpace(arg.DefaultValue))
{
if (string.IsNullOrWhiteSpace(arg.DefaultIfNull) || arg.DefaultValue == "null")
s.Out($"if ({name}!=null) kwargs[\"{arg.Name}\"]=ToPython({name});");
else
s.Out($"kwargs[\"{arg.Name}\"]=ToPython({name} ?? {arg.DefaultIfNull});");
}
else //if (arg.IsNullable)
s.Out($"if ({name}!=null) kwargs[\"{arg.Name}\"]=ToPython({name});");
}
// then call the function
s.Out($"dynamic py = __self__.InvokeMethod(\"{func.Name}\", pyargs, kwargs);");
}
else
{
// call function with no arguments
s.Out($"dynamic py = __self__.InvokeMethod(\"{func.Name}\");");
}
if (func.IsConstructor)
{
s.Out("self=py as PyObject;");
return;
}
// return the return value if any
if (func.Returns.Count == 0)
return;
if (func.Returns.Count == 1)
s.Out($"return ToCsharp<{func.Returns[0].Type}>(py);");
else
{
var returns = func.Returns.Select((x, i) => $"ToCsharp<{x.Type}>(py[{i}])").ToArray();
s.Out($"return ({string.Join(", ", returns)});");
}
}
//private void GenerateForwardingBody(Function member_func, CodeWriter s, string prefix = "")
//{
// var func = member_func.Clone<Function>();
// // inserting this at position 0 since this is a forwarding of a member function to a static implementation
// func.Arguments.Insert(0, new Argument() { Name = "this", Type = "irrelevant" });
// var passed_args = GeneratePassedArgs(func);
// s.Out("var @this=this;");
// var return_keyword = member_func.Returns.Count > 0 ? "return " : "";
// s.Out($"{return_keyword}{func.ForwardToStaticImpl}.{EscapeName(prefix + func.Name)}({passed_args});");
//}
private void GeneratePropertyGetter(Property prop, CodeWriter s)
{
s.Out($"dynamic py = self.GetAttr(\"{prop.Name}\");");
if (prop.Returns.Count==1 && prop.Type!=null)
s.Out($"return ToCsharp<{prop.Type}>(py);");
else
{
throw new NotImplementedException("TODO: Property returns a tuple");
}
}
private void GeneratePropertySetter(Property prop, CodeWriter s)
{
s.Out($"self.SetAttr(\"{prop.Name}\", ToPython(value));");
}
public virtual void GenerateStaticApi(StaticApi api, CodeWriter s)
{
GenerateUsings(s);
s.Out($"namespace {NameSpace}");
s.Block(() =>
{
s.Out($"public static partial class {api.StaticName}");
s.Block(() =>
{
s.Break();
foreach (var decl in api.Declarations)
{
try
{
if (decl.Ignore)
continue;
GenerateApiFunction(decl, s, @static:true);
}
catch (Exception e)
{
s.Out("// Error generating delaration: " + decl.Name);
s.Out("// Message: " + e.Message);
s.Out("/*");
s.Out(e.StackTrace);
s.Out("----------------------------");
s.Out("Declaration JSON:");
s.Out(JObject.FromObject(decl).ToString(Formatting.Indented));
s.Out("*/");
}
}
s.Break();
});
});
}
private void GenerateUsings(CodeWriter s)
{
foreach (var @using in Usings)
{
s.AppendLine(@using);
}
s.Out(@"#if PYTHON_INCLUDED");
s.Out(@"using Python.Included;");
s.Out(@"#endif");
s.AppendLine();
}
public virtual void GenerateApiImpl(StaticApi api, CodeWriter s)
{
GenerateUsings(s);
s.AppendLine($"namespace {NameSpace}");
s.Block(() =>
{
s.Out($"public partial class {api.ImplName}");
s.Block(() =>
{
s.Break();
foreach (var decl in api.Declarations)
{
try
{
if (decl.ManualOverride || decl.Ignore)
continue;
GenerateApiFunction(decl, s, prefix: true);
}
catch (Exception e)
{
s.Out("// Error generating delaration: " + decl.Name);
s.Out("// Message: " + e.Message);
s.Out("/*");
s.Out(e.StackTrace);
s.Out("----------------------------");
s.Out("Declaration JSON:");
s.Out(JObject.FromObject(decl).ToString(Formatting.Indented));
s.Out("*/");
}
}
});
});
}
public virtual void GenerateDynamicApi(DynamicApi api, CodeWriter s)
{
GenerateUsings(s);
s.AppendLine($"namespace {NameSpace}");
s.Block(() =>
{
s.Out($"public partial class {api.ClassName}");
s.Block(() =>
{
s.Break();
foreach (var decl in api.Declarations)
{
try
{
if (decl.ManualOverride || decl.Ignore)
continue;
if (decl is Function && !(decl as Function).IsExtensionFunction)
GenerateApiFunction(decl, s);
}
catch (Exception e)
{
s.Out("// Error generating delaration: " + decl.Name);
s.Out("// Message: " + e.Message);
s.Out("/*");
s.Out(e.StackTrace);
s.Out("----------------------------");
s.Out("Declaration JSON:");
s.Out(JObject.FromObject(decl).ToString(Formatting.Indented));
s.Out("*/");
}
}
});
});
}
public virtual void GenerateClass(ApiClass api, CodeWriter s)
{
GenerateUsings(s);
s.AppendLine($"namespace {NameSpace}");
s.Block(() =>
{
var names = new ArraySlice<string>(api.ClassName.Split('.'));
var static_classes = names.GetSlice(new Slice(0, names.Length - 1));
var class_name = names.Last();
int levels = names.Length - 1;
if (levels > 0)
{
foreach (var name in static_classes)
{
s.Out($"public static partial class {EscapeName(name)} {{");
s.Indent();
}
}
GenerateDocString(api, s);
s.Out($"public partial class {EscapeName(class_name)} : {EscapeName(api.BaseClass)}");
s.Block(() =>
{
s.Out($"// auto-generated class");
s.Break();
s.Out($"public {EscapeName(class_name)}(PyObject pyobj) : base(pyobj) {{ }}");
s.Break();
s.Out($"public {EscapeName(class_name)}({EscapeName(api.BaseClass)} other) : base(other.PyObject as PyObject) {{ }}");
s.Break();
// additional constructors
foreach (var func in api.Constructors)
{
try
{
if (func.ManualOverride || func.Ignore)
continue;
func.Sanitize();
func.IsConstructor = true;
func.ClassName = string.Join(".", static_classes);
func.Name = class_name;
var arguments = GenerateArguments(func);
//var passed_args = GeneratePassedArgs(func);
s.Out($"public {EscapeName(class_name)}({arguments})");
s.Block(() =>
{
GenerateFunctionBody(func, s);
});
}
catch (Exception e)
{
s.Out("// Error generating constructor");
s.Out("// Message: " + e.Message);
s.Out("/*");
s.Out(e.StackTrace);
s.Out("----------------------------");
s.Out("Declaration JSON:");
s.Out(JObject.FromObject(func).ToString(Formatting.Indented));
s.Out("*/");
}
}
// functions
s.Break();
foreach (var decl in api.Declarations)
{
try
{
if (decl.ManualOverride || decl.Ignore)
continue;
GenerateApiFunction(decl, s);
}
catch (Exception e)
{
s.Out("// Error generating delaration: " + decl.Name);
s.Out("// Message: " + e.Message);
s.Out("/*");
s.Out(e.StackTrace);
s.Out("----------------------------");
s.Out("Declaration JSON:");
s.Out(JObject.FromObject(decl).ToString(Formatting.Indented));
s.Out("*/");
}
}
});
if (levels > 0)
{
foreach (var name in static_classes)
{
s.Outdent();
s.Out("}");
}
}
//if (decl.CommentOut)
// s.Out("*/");
s.Break();
});
}
protected void WriteFile(string path, Action<CodeWriter> generate_action)
{
var s = new CodeWriter();
try
{
if (!string.IsNullOrWhiteSpace(CopyrightNotice))
s.Out("// " + CopyrightNotice);
s.Out("// Code generated by CodeMinion: https://github.com/SciSharp/CodeMinion");
s.Break();
generate_action(s);
}
catch (Exception e)
{
s.AppendLine("/*");
s.AppendLine("\r\n --------------- generator exception ---------------------");
s.AppendLine(e.Message);
s.AppendLine(e.StackTrace);
s.AppendLine("*/");
}
var dir = Path.GetDirectoryName(path);
if (!Directory.Exists(dir))
Directory.CreateDirectory(dir);
File.WriteAllText(path, s.ToString());
}
public void Generate()
{
// generate all static apis that have been configured
var generated_implementations = new HashSet<string>();
var conv_file = Path.Combine(StaticApiFilesPath, $"{StaticModuleName}.module.gen.cs");
WriteFile(conv_file, s => { GenerateStaticModuleHead( s); });
foreach (var api in StaticApis)
{
var outpath = api.OutputPath ?? StaticApiFilesPath;
if (string.IsNullOrWhiteSpace(outpath))
throw new InvalidDataException("either set generators StaticApiFilesPath or static_api's OutputPath");
// generate static apis
//if (!generated_implementations.Contains(api.ImplName))
//{
//}
generated_implementations.Add(api.ImplName);
var partial = (api.PartialName == null ? "" : "." + api.PartialName);
var api_file = Path.Combine(outpath, $"{api.StaticName + partial}.gen.cs");
//var impl_file = Path.Combine(outpath, $"{api.ImplName + partial}.gen.cs");
WriteFile(api_file, s => { GenerateStaticApi(api, s); });
//WriteFile(impl_file, s => { GenerateApiImpl(api, s); });
}
// PythonObject functions:
var pyobj_file = Path.Combine(ModelsPath ?? DynamicApiFilesPath, $"PythonObject.gen.cs");
WriteFile(pyobj_file, s => { GeneratePythonObjectConversions(s); });
// Dynamic APIs
foreach (var api in DynamicApis)
{
var outpath = api.OutputPath ?? DynamicApiFilesPath;
// generate dynamic apis
var partial = (api.PartialName == null ? "" : "." + api.PartialName);
var api_file = Path.Combine(outpath, $"{api.ClassName + partial}.gen.cs");
WriteFile(api_file, s => { GenerateDynamicApi(api, s); });
}
// Classes
foreach (var api in ApiClasses)
{
if (api.Ignore)
continue;
var outpath = api.OutputPath ?? DynamicApiFilesPath;
if (api.SubDir != null)
outpath = Path.Combine(outpath, api.SubDir);
// generate dynamic apis
var partial = (api.PartialName == null ? "" : "." + api.PartialName);
var api_file = Path.Combine(outpath, $"{api.ClassName + partial}.gen.cs");
WriteFile(api_file, s => { GenerateClass(api, s); });
}
// generate missing tests
GenerateAllTests();
}
/// <summary>
/// Generate tests that probably have to be manually corrected, syntax wise. For that reason
/// We will not overwrite any existing files!
/// </summary>
public void GenerateAllTests()
{
foreach (var file in TestFiles)
{
if(file.TestCases.Count==0)
continue;
var path = TestFilesPath;
if (!string.IsNullOrWhiteSpace(file.SubDir))
path = Path.Combine(path, file.SubDir);
if (!Directory.Exists(path))
Directory.CreateDirectory(path);
var test_file = Path.Combine(path, $"{file.Name}.tests.cs");
if (File.Exists(test_file))
continue; // never overwrite already generated files!
WriteFile(test_file, s => { GenerateTests(file, s); });
}
}
private void GenerateTests(TestFile file, CodeWriter s)
{
GenerateUsings(s);
s.Out("using Microsoft.VisualStudio.TestTools.UnitTesting;");
s.Out("using Assert = NUnit.Framework.Assert;");
s.Break();
s.Out($"namespace {NameSpace}.UnitTest", () =>
{
s.Out("[TestClass]");
s.Out($"public class {file.Name}Test : BaseTestCase", () =>
{
foreach (var testcase in file.TestCases)
GenerateTestCase(testcase, s);
});
});
}
private void GenerateTestCase(TestCase testcase, CodeWriter s)
{
s.Break();
s.Out("[TestMethod]");
s.Out($"public void {testcase.Name}()", () =>
{
var given_var = false;
var expected_var = false;
foreach (var part in testcase.TestParts)
{
switch (part)
{
case Comment c:
foreach (var ln in Regex.Split(c.Text, @"\r?\n"))
s.Out(@"// " + ln);
s.Break();
break;
case ExampleCode example:
var lines = Regex.Split(example.Text, @"\r?\n");
foreach (var ln in lines)
s.Out(@"// " + ln);
s.Break();
s.Out("#if TODO");
foreach (var line in example.Lines)
{
if (line.Type == "comment")
{
s.Out(line.Text[0]);
continue;
}
if (line.Type == "cmd")
{
var cmd = line.Text[0];
s.Out($"{(given_var ? "" : "var")} given= " + cmd + ";");
given_var = true;
continue;
}
if (line.Type == "output")
{
s.Out($"{(expected_var ? "" : "var")} expected=");
expected_var = true;
s.Indent(() =>
{
int i = 0;
foreach (var output in line.Text)
{
var newline = i < line.Text.Count - 1 ? @"\n" : "";
var delimiter = i < line.Text.Count - 1 ? @" +" : ";";
s.Out($"\"{output}{newline}\"{delimiter}");
i++;
}
});
}
s.Out("Assert.AreEqual(expected, given.repr);");
}
s.Out("#endif");
break;
}
}
});
s.Break();
}
private void GenerateStaticModuleHead(CodeWriter s)
{
GenerateUsings(s);
s.AppendLine($"namespace {NameSpace}");
s.Block(() =>
{
s.Out($"public static partial class {StaticModuleName}", () =>
{
s.Out("static np()", () =>
{
s.Out("ReInitializeLazySelf();");
});
s.Break();
s.Out("public static PyObject self => _lazy_self.Value;");
s.Break();
s.Out($"private static Lazy<PyObject> _lazy_self = default;");
s.Out($"private static void ReInitializeLazySelf() => _lazy_self = new Lazy<PyObject>(() => ", () =>
{
s.Out("try", () =>
{
s.Out("return InstallAndImport();");
});
s.Out("catch (Exception)", () =>
{
s.Out("// retry to fix the installation by forcing a repair, if Python.Included is used.");
s.Out("return InstallAndImport(force: true);");
});
//s.Out("return instance;");
});
s.Out(");");
s.Break();
s.Out("private static PyObject InstallAndImport(bool force = false)", () =>
{
s.Out(@"#if PYTHON_INCLUDED");
s.Out("Installer.SetupPython(force).Wait();");
s.Out(@"#endif");
foreach (var generator in InitializationGenerators)
generator(s);
s.Out("PythonEngine.AddShutdownHandler(() => ReInitializeLazySelf());");
s.Out("PythonEngine.Initialize();");
s.Out($"var mod = Py.Import(\"{PythonModuleName}\");");
s.Out("return mod;");
});
s.Break();
s.Out("public static dynamic dynamic_self => self;");
s.Out("private static bool IsInitialized => self != null;");
s.Break();
//s.Out($"private {api.ImplName}() {{ }}");
s.Break();
s.Out("public static void Dispose()", () =>
{
s.Out("self?.Dispose();");
});
s.Break();
GenToTuple(s, @static:true);
GenToPython(s, @static: true);
GenToCsharp(s, @static: true);
GenSharpToSharp(s, @static: true);
GenSpecialConversions(s, @static: true);
});
});
}
private void GeneratePythonObjectConversions(CodeWriter s)
{
GenerateUsings(s);
s.Out($"namespace {NameSpace}", () =>
{
s.Out($"public partial class PythonObject", () =>
{
s.Break();
GenToTuple(s);
GenToPython(s);
GenToCsharp(s);
GenSharpToSharp(s);
GenSpecialConversions(s);
});
});
}
private void GenToTuple(CodeWriter s, bool @static=false)
{
s.Break();
s.Out("//auto-generated");
s.Out($"{(@static?"private static":"public")} PyTuple ToTuple(Array input)", () =>
{
s.Out("var array = new PyObject[input.Length];");
s.Out("for (int i = 0; i < input.Length; i++)", () =>
{
s.Out("array[i]=ToPython(input.GetValue(i));");
});
s.Out("return new PyTuple(array);");
});
}
public HashSet<string> ToCsharpConversions { get; set; } = new HashSet<string>();
private void GenToCsharp(CodeWriter s, bool @static = false)
{
s.Break();
s.Out("//auto-generated");
s.Out($"{(@static?"internal static":"public")} T ToCsharp<T>(dynamic pyobj)", () =>
{
s.Out("switch (typeof(T).Name)", () =>
{