@ -8,37 +8,85 @@ using System.Linq;
using System.Text ;
using System.Text.RegularExpressions ;
using System.Threading.Tasks ;
using System.CommandLine ;
using System.Linq.Expressions ;
using System.Runtime.CompilerServices ;
namespace CodeGenerator
{
internal static class Program
{
static void Main ( string [ ] args )
private const string InternalNamespace = ".Internal" ;
static async Task < int > Main ( string [ ] args )
{
string outputPath ;
if ( args . Length > 0 )
{
outputPath = args [ 0 ] ;
}
else
{
outputPath = AppContext . BaseDirectory ;
}
// internal vars for command line results used by the rest of the program.
bool runApp = false ;
string outputPath = string . Empty ;
string libraryName = string . Empty ;
bool useInternals = false ;
if ( ! Directory . Exists ( outputPath ) )
{
Directory . CreateDirectory ( outputPath ) ;
}
#region Command line handler
var optionOutputPath = new Option < DirectoryInfo > (
aliases : new [ ] { "--outputDir" , "-o" } ,
description : "The directory to place generated code files." ,
parseArgument : result = >
{
if ( result . Tokens . Count = = 0 )
return new DirectoryInfo ( AppContext . BaseDirectory ) ;
string libraryName ;
if ( args . Length > 1 )
{
libraryName = args [ 1 ] ;
}
else
string value = result . Tokens . Single ( ) . Value ;
try { return Directory . CreateDirectory ( value ) ; }
catch ( Exception ) { result . ErrorMessage = $"Unable to create directory: {value}" ; return null ; }
} ,
isDefault : true ) ;
var optionLibraryname = new Option < string > (
aliases : new [ ] { "--library" , "-l" } ,
description : "The library to read parse." ,
getDefaultValue : ( ) = > "cimgui" )
. FromAmong ( "cimgui" , "cimplot" , "cimnodes" , "cimguizmo" ) ;
var optionInternal = new Option < bool > (
name : "--internal" ,
description : "When set to true, includes the internal header file." ,
parseArgument : result = >
{
// Using parse with isDefault: false, instead of the normal validation, allows us to use "--internal" without specifying true to mean true.
if ( result . Tokens . Count = = 0 )
return true ;
if ( bool . TryParse ( result . Tokens . Single ( ) . Value , out var value ) )
return value ;
result . ErrorMessage = "Invalid option for --internal. Value must be true or false." ;
return false ; // ignored because of error message.
} ,
isDefault : false ) ;
var rootCommand = new RootCommand ( "Generates code for the ImGui.NET libraries based on the cimgui definition files." ) ;
rootCommand . AddOption ( optionInternal ) ;
rootCommand . AddOption ( optionOutputPath ) ;
rootCommand . AddOption ( optionLibraryname ) ;
rootCommand . SetHandler ( ( outputPathValue , libNameValue , useInternalValue ) = >
{
libraryName = "cimgui" ;
}
outputPath = outputPathValue . FullName ;
libraryName = libNameValue ;
useInternals = useInternalValue ;
runApp = true ;
} , optionOutputPath , optionLibraryname , optionInternal ) ;
var commandResult = await rootCommand . InvokeAsync ( args ) ;
if ( ! runApp )
return commandResult ;
# endregion
string projectNamespace = libraryName switch
{
@ -78,7 +126,7 @@ namespace CodeGenerator
string definitionsPath = Path . Combine ( AppContext . BaseDirectory , "definitions" , libraryName ) ;
var defs = new ImguiDefinitions ( ) ;
defs . LoadFrom ( definitionsPath ) ;
defs . LoadFrom ( definitionsPath , ! useInternals ) ;
Console . WriteLine ( $"Outputting generated code files to {outputPath}." ) ;
@ -118,7 +166,7 @@ namespace CodeGenerator
writer . Using ( "ImGuiNET" ) ;
}
writer . WriteLine ( string . Empty ) ;
writer . PushBlock ( $"namespace {projectNamespace}" ) ;
writer . PushBlock ( $"namespace {projectNamespace}{(td.IsInternal ? InternalNamespace : string.Empty)} " ) ;
writer . PushBlock ( $"public unsafe partial struct {td.Name}" ) ;
foreach ( TypeReference field in td . Fields )
@ -284,6 +332,10 @@ namespace CodeGenerator
{
writer . Using ( "ImGuiNET" ) ;
}
if ( useInternals )
{
writer . Using ( $"{projectNamespace}{InternalNamespace}" ) ;
}
writer . WriteLine ( string . Empty ) ;
writer . PushBlock ( $"namespace {projectNamespace}" ) ;
writer . PushBlock ( $"public static unsafe partial class {classPrefix}Native" ) ;
@ -347,6 +399,7 @@ namespace CodeGenerator
writer . PopBlock ( ) ;
}
// Root ImGui* class items - Noninternal
using ( CSharpCodeWriter writer = new CSharpCodeWriter ( Path . Combine ( outputPath , $"{classPrefix}.gen.cs" ) ) )
{
writer . Using ( "System" ) ;
@ -360,52 +413,65 @@ namespace CodeGenerator
writer . WriteLine ( string . Empty ) ;
writer . PushBlock ( $"namespace {projectNamespace}" ) ;
writer . PushBlock ( $"public static unsafe partial class {classPrefix}" ) ;
foreach ( FunctionDefinition fd in defs . Functions )
EmitFunctions ( false ) ;
writer . PopBlock ( ) ;
writer . PopBlock ( ) ;
if ( useInternals )
{
if ( TypeInfo . SkippedFunctions . Contains ( fd . Name ) ) { continue ; }
writer . PushBlock ( $"namespace {projectNamespace}{InternalNamespace}" ) ;
writer . PushBlock ( $"public static unsafe partial class {classPrefix}" ) ;
EmitFunctions ( true ) ;
writer . PopBlock ( ) ;
writer . PopBlock ( ) ;
}
foreach ( OverloadDefinition overload in fd . Overloads )
void EmitFunctions ( bool isInternal )
{
foreach ( FunctionDefinition fd in defs . Functions )
{
string exportedName = overload . ExportedName ;
if ( exportedName . StartsWith ( "ig" ) )
{
exportedName = exportedName . Substring ( 2 , exportedName . Length - 2 ) ;
}
if ( exportedName . Contains ( "~" ) ) { continue ; }
if ( overload . Parameters . Any ( tr = > tr . Type . Contains ( '(' ) ) ) { continue ; } // TODO: Parse function pointer parameters.
if ( TypeInfo . SkippedFunctions . Contains ( fd . Name ) ) { continue ; }
bool hasVaList = false ;
for ( int i = 0 ; i < overload . Parameters . Length ; i + + )
foreach ( OverloadDefinition overload in fd . Overloads . Where ( o = > ! o . IsMemberFunction & & o . IsInternal = = isInternal ) )
{
TypeReference p = overload . Parameters [ i ] ;
string paramType = GetTypeString ( p . Type , p . IsFunctionPointer ) ;
if ( p . Name = = "..." ) { continue ; }
string exportedName = overload . ExportedName ;
if ( exportedName . StartsWith ( "ig" ) )
{
exportedName = exportedName . Substring ( 2 , exportedName . Length - 2 ) ;
}
if ( exportedName . Contains ( "~" ) ) { continue ; }
if ( overload . Parameters . Any ( tr = > tr . Type . Contains ( '(' ) ) ) { continue ; } // TODO: Parse function pointer parameters.
if ( paramType = = "va_list" )
bool hasVaList = false ;
for ( int i = 0 ; i < overload . Parameters . Length ; i + + )
{
hasVaList = true ;
break ;
TypeReference p = overload . Parameters [ i ] ;
string paramType = GetTypeString ( p . Type , p . IsFunctionPointer ) ;
if ( p . Name = = "..." ) { continue ; }
if ( paramType = = "va_list" )
{
hasVaList = true ;
break ;
}
}
}
if ( hasVaList ) { continue ; }
if ( hasVaList ) { continue ; }
KeyValuePair < string , string > [ ] orderedDefaults = overload . DefaultValues . OrderByDescending (
kvp = > GetIndex ( overload . Parameters , kvp . Key ) ) . ToArray ( ) ;
KeyValuePair < string , string > [ ] orderedDefaults = overload . DefaultValues . OrderByDescending (
kvp = > GetIndex ( overload . Parameters , kvp . Key ) ) . ToArray ( ) ;
for ( int i = overload . DefaultValues . Count ; i > = 0 ; i - - )
{
if ( overload . IsMemberFunction ) { continue ; }
Dictionary < string , string > defaults = new Dictionary < string , string > ( ) ;
for ( int j = 0 ; j < i ; j + + )
for ( int i = overload . DefaultValues . Count ; i > = 0 ; i - - )
{
defaults . Add ( orderedDefaults [ j ] . Key , orderedDefaults [ j ] . Value ) ;
Dictionary < string , string > defaults = new Dictionary < string , string > ( ) ;
for ( int j = 0 ; j < i ; j + + )
{
defaults . Add ( orderedDefaults [ j ] . Key , orderedDefaults [ j ] . Value ) ;
}
EmitOverload ( writer , overload , defaults , null , classPrefix ) ;
}
EmitOverload ( writer , overload , defaults , null , classPrefix ) ;
}
}
}
writer . PopBlock ( ) ;
writer . PopBlock ( ) ;
}
foreach ( var method in defs . Variants )
@ -415,6 +481,8 @@ namespace CodeGenerator
if ( ! variant . Used ) Console . WriteLine ( $"Error: Variants targetting parameter {variant.Name} with type {variant.OriginalType} could not be applied to method {method.Key}." ) ;
}
}
return 0 ;
}
private static bool IsStringFieldName ( string name )
Thraka
2 years ago