Setup proper project skeleton with 2 stage build

README.md

@@ -2,10 +2,20 @@
 
 Any code I do for this series will be here.
 
-Building requires msvc or llvm's clang + lld, and powershell 7
+
 
 ## Scripts
 
 * `build.ps1` - Builds the project use `.\scripts\build msvc` or `.\scripts\build clang`, add `release` to build in release mode
 * `clean.ps1` - Cleans the project
 * `update.ps1` - Updates the project dependencies to their latest from their respective repos. (Not done automatically on build)
+
+## Notes
+
+Building requires msvc or llvm's clang + lld, and powershell 7
+
+The build is done in two stages:
+
+1. Build and run metaprogram to scan and generate dependent code.
+2. Build the handmade hero runtime.
+

project/dependencies/gen.hpp

@@ -8657,174 +8657,6 @@ struct Builder
 };
 
 #pragma endregion Builder
-
-#pragma region Scanner
-
-// This is a simple file reader that reads the entire file into memory.
-// It has an extra option to skip the first few lines for undesired includes.
-// This is done so that includes can be kept in dependency and component files so that intellisense works.
-Code scan_file( char const* path )
-{
-	FileInfo file;
-
-	FileError error = file_open_mode( &file, EFileMode_READ, path );
-	if ( error != EFileError_NONE )
-	{
-		GEN_FATAL( "scan_file: Could not open: %s", path );
-	}
-
-	sw fsize = file_size( &file );
-	if ( fsize <= 0 )
-	{
-		GEN_FATAL( "scan_file: %s is empty", path );
-	}
-
-	String str = String::make_reserve( GlobalAllocator, fsize );
-	file_read( &file, str, fsize );
-	str.get_header().Length = fsize;
-
-	// Skip GEN_INTELLISENSE_DIRECTIVES preprocessor blocks
-	// Its designed so that the directive should be the first thing in the file.
-	// Anything that comes before it will also be omitted.
-	{
-#define current ( *scanner )
-#define matched 0
-#define move_fwd() \
-	do             \
-	{              \
-		++scanner; \
-		--left;    \
-	} while ( 0 )
-		const StrC directive_start  = txt( "ifdef" );
-		const StrC directive_end    = txt( "endif" );
-		const StrC def_intellisense = txt( "GEN_INTELLISENSE_DIRECTIVES" );
-
-		bool        found_directive = false;
-		char const* scanner         = str.Data;
-		s32         left            = fsize;
-		while ( left )
-		{
-			// Processing directive.
-			if ( current == '#' )
-			{
-				move_fwd();
-				while ( left && char_is_space( current ) )
-					move_fwd();
-
-				if ( ! found_directive )
-				{
-					if ( left && str_compare( scanner, directive_start.Ptr, directive_start.Len ) == matched )
-					{
-						scanner += directive_start.Len;
-						left    -= directive_start.Len;
-
-						while ( left && char_is_space( current ) )
-							move_fwd();
-
-						if ( left && str_compare( scanner, def_intellisense.Ptr, def_intellisense.Len ) == matched )
-						{
-							scanner         += def_intellisense.Len;
-							left            -= def_intellisense.Len;
-
-							found_directive  = true;
-						}
-					}
-
-					// Skip to end of line
-					while ( left && current != '\r' && current != '\n' )
-						move_fwd();
-					move_fwd();
-
-					if ( left && current == '\n' )
-						move_fwd();
-
-					continue;
-				}
-
-				if ( left && str_compare( scanner, directive_end.Ptr, directive_end.Len ) == matched )
-				{
-					scanner += directive_end.Len;
-					left    -= directive_end.Len;
-
-					// Skip to end of line
-					while ( left && current != '\r' && current != '\n' )
-						move_fwd();
-					move_fwd();
-
-					if ( left && current == '\n' )
-						move_fwd();
-
-					// sptr skip_size = fsize - left;
-					if ( ( scanner + 2 ) >= ( str.Data + fsize ) )
-					{
-						mem_move( str, scanner, left );
-						str.get_header().Length = left;
-						break;
-					}
-
-					mem_move( str, scanner, left );
-					str.get_header().Length = left;
-
-					break;
-				}
-			}
-
-			move_fwd();
-		}
-#undef move_fwd
-#undef matched
-#undef current
-	}
-
-	file_close( &file );
-	return untyped_str( str );
-}
-
-#if 0
-struct Policy
-{
-	// Nothing for now.
-};
-
-struct SymbolInfo
-{
-	StringCached File;
-	char const*  Marker;
-	Code         Signature;
-};
-
-struct Scanner
-{
-	struct RequestEntry
-	{
-		SymbolInfo Info;
-	};
-
-	struct Receipt
-	{
-		StringCached File;
-		Code         Defintion;
-		bool         Result;
-	};
-
-	AllocatorInfo MemAlloc;
-
-	static void set_allocator( AllocatorInfo allocator );
-
-	Array<FileInfo>     Files;
-	String              Buffer;
-	Array<RequestEntry> Requests;
-
-	void add_files( s32 num, char const** files );
-
-	void add( SymbolInfo signature, Policy policy );
-
-	bool process_requests( Array<Receipt> out_receipts );
-};
-#endif
-
-#pragma endregion Scanner
-
 GEN_NS_END
 
 #pragma region GENCPP IMPLEMENTATION GUARD
@@ -23089,6 +22921,174 @@ void Builder::write()
 
 #pragma endregion Builder
 
+
+#pragma region Scanner
+
+// This is a simple file reader that reads the entire file into memory.
+// It has an extra option to skip the first few lines for undesired includes.
+// This is done so that includes can be kept in dependency and component files so that intellisense works.
+Code scan_file( char const* path )
+{
+	FileInfo file;
+
+	FileError error = file_open_mode( &file, EFileMode_READ, path );
+	if ( error != EFileError_NONE )
+	{
+		GEN_FATAL( "scan_file: Could not open: %s", path );
+	}
+
+	sw fsize = file_size( &file );
+	if ( fsize <= 0 )
+	{
+		GEN_FATAL( "scan_file: %s is empty", path );
+	}
+
+	String str = String::make_reserve( GlobalAllocator, fsize );
+	file_read( &file, str, fsize );
+	str.get_header().Length = fsize;
+
+	// Skip GEN_INTELLISENSE_DIRECTIVES preprocessor blocks
+	// Its designed so that the directive should be the first thing in the file.
+	// Anything that comes before it will also be omitted.
+	{
+#define current ( *scanner )
+#define matched 0
+#define move_fwd() \
+	do             \
+	{              \
+		++scanner; \
+		--left;    \
+	} while ( 0 )
+		const StrC directive_start  = txt( "ifdef" );
+		const StrC directive_end    = txt( "endif" );
+		const StrC def_intellisense = txt( "GEN_INTELLISENSE_DIRECTIVES" );
+
+		bool        found_directive = false;
+		char const* scanner         = str.Data;
+		s32         left            = fsize;
+		while ( left )
+		{
+			// Processing directive.
+			if ( current == '#' )
+			{
+				move_fwd();
+				while ( left && char_is_space( current ) )
+					move_fwd();
+
+				if ( ! found_directive )
+				{
+					if ( left && str_compare( scanner, directive_start.Ptr, directive_start.Len ) == matched )
+					{
+						scanner += directive_start.Len;
+						left    -= directive_start.Len;
+
+						while ( left && char_is_space( current ) )
+							move_fwd();
+
+						if ( left && str_compare( scanner, def_intellisense.Ptr, def_intellisense.Len ) == matched )
+						{
+							scanner         += def_intellisense.Len;
+							left            -= def_intellisense.Len;
+
+							found_directive  = true;
+						}
+					}
+
+					// Skip to end of line
+					while ( left && current != '\r' && current != '\n' )
+						move_fwd();
+					move_fwd();
+
+					if ( left && current == '\n' )
+						move_fwd();
+
+					continue;
+				}
+
+				if ( left && str_compare( scanner, directive_end.Ptr, directive_end.Len ) == matched )
+				{
+					scanner += directive_end.Len;
+					left    -= directive_end.Len;
+
+					// Skip to end of line
+					while ( left && current != '\r' && current != '\n' )
+						move_fwd();
+					move_fwd();
+
+					if ( left && current == '\n' )
+						move_fwd();
+
+					// sptr skip_size = fsize - left;
+					if ( ( scanner + 2 ) >= ( str.Data + fsize ) )
+					{
+						mem_move( str, scanner, left );
+						str.get_header().Length = left;
+						break;
+					}
+
+					mem_move( str, scanner, left );
+					str.get_header().Length = left;
+
+					break;
+				}
+			}
+
+			move_fwd();
+		}
+#undef move_fwd
+#undef matched
+#undef current
+	}
+
+	file_close( &file );
+	return untyped_str( str );
+}
+
+#if 0
+struct Policy
+{
+	// Nothing for now.
+};
+
+struct SymbolInfo
+{
+	StringCached File;
+	char const*  Marker;
+	Code         Signature;
+};
+
+struct Scanner
+{
+	struct RequestEntry
+	{
+		SymbolInfo Info;
+	};
+
+	struct Receipt
+	{
+		StringCached File;
+		Code         Defintion;
+		bool         Result;
+	};
+
+	AllocatorInfo MemAlloc;
+
+	static void set_allocator( AllocatorInfo allocator );
+
+	Array<FileInfo>     Files;
+	String              Buffer;
+	Array<RequestEntry> Requests;
+
+	void add_files( s32 num, char const** files );
+
+	void add( SymbolInfo signature, Policy policy );
+
+	bool process_requests( Array<Receipt> out_receipts );
+};
+#endif
+
+#pragma endregion Scanner
+
 GEN_NS_END
 
 #endif

project/gen/gen_handmade.cpp

@@ -0,0 +1,17 @@
+#if GEN_TIME
+#define GEN_DEFINE_LIBRARY_CODE_CONSTANTS
+#define GEN_IMPLEMENTATION
+#define GEN_BENCHMARK
+#define GEN_ENFORCE_STRONG_CODE_TYPES
+#include "gen.hpp"
+using namespace gen;
+
+int gen_main()
+{
+	gen::init();
+	log_fmt("Generating code for Handmade Hero\n");
+
+	gen::deinit();
+	return 0;
+}
+#endif

project/handmade_win32.cpp

@@ -0,0 +1,8 @@
+#include <stdio.h>
+
+int main()
+{
+	puts("Handmade Hero!");
+
+	return 0;
+}

project/sanity.cpp

@@ -1,7 +0,0 @@
-#include "stdio.h"
-
-int main()
-{
-	puts( "Hello World!\n" );
-	return 0;
-}

scripts/build.ps1

@@ -288,6 +288,7 @@ if ( $vendor -match "msvc" )
 $path_project = Join-Path $path_root    'project'
 $path_build   = Join-Path $path_project 'build'
 $path_deps    = Join-Path $path_project 'dependencies'
+$path_gen     = Join-Path $path_project 'gen'
 
 $update_deps = Join-Path $PSScriptRoot 'update_deps.ps1'
 
@@ -300,14 +301,39 @@ if ( (Test-Path $path_deps) -eq $false ) {
 }
 
 $includes = @(
+	$path_gen,
 	$path_project,
 	$path_deps
 )
 
-$unit       = Join-Path $path_project 'sanity.cpp'
+$compiler_args = @(
-$executable = Join-Path $path_build   'sanity.exe'
+	($flag_define + 'GEN_TIME')
+)
+
+#region Handmade Generate
+$unit       = Join-Path $path_gen   'gen_handmade.cpp'
+$executable = Join-Path $path_build 'gen_handmade.exe'
+
+build-simple $includes $compiler_args $unit $executable
+write-host "Compiled Handmade Generate`n"
+
+& $executable
+
+if ( $false ) {
+	Remove-Item (Get-ChildItem -Path $path_build -Recurse -Force)
+}
+#endregion Handmade Generate
+
+#region Handmade Runtime
+
+$unit       = Join-Path $path_project 'handmade_win32.cpp'
+$executable = Join-Path $path_build   'handmade_win32.exe'
 
 $compile_args = @(
 )
 
 build-simple $includes $compiler_args $unit $executable
+write-host "Compiled Handmade Runtime`n"
+#endregion Handmade Runtime
+
+Pop-Location