Merge branch 'main' of git.nbross.com:nielsbross/Ink-Shader-Language

AST.jai

@@ -20,6 +20,7 @@ AST_Kind :: enum {
 	If;
 	For;
 	CBuffer;
+	Buffer;
 	FieldList;
 	ArgList;
 	Variable;
@@ -473,18 +474,20 @@ pretty_print_declaration :: (declaration : *AST_Node, indentation : int, builder
 		append(builder, "struct ");
 	} else if declaration.kind == .CBuffer {
 		append(builder, "constant_buffer ");
+	} else if declaration.kind == .Buffer {
+		append(builder, "buffer ");
 	}
 	print_to_builder(builder, "%", declaration.name);
 
-	if declaration.kind == .CBuffer {
+	if declaration.kind == .CBuffer || declaration.kind == .Buffer{
 		for hint : declaration.hint_tokens {
 			if hint.string_value.count > 0 {
 				print_to_builder(builder, " (@%)", hint.string_value);
 			}
 		}
-		if declaration.kind != .If_Directive {
+		// if declaration.kind != .If_Directive {
-			print_to_builder(builder, "%", declaration.name);
+		// 	print_to_builder(builder, "%", declaration.name);
-		}
+		// }
 	}
 
 	if declaration.kind == .Function && declaration.token.kind == .TOKEN_IDENTIFIER{

Check.jai

@@ -38,6 +38,7 @@ Type_Kind :: enum {
 	
 	Struct;
 	CBuffer;
+	Buffer;
 	Array;
 }
 
@@ -66,6 +67,8 @@ Type_Variable :: struct {
 
 	name : string;
 
+	
+
 	//@Note(niels) For functions
 	return_type_variable : Type_Variable_Handle;
 
@@ -76,9 +79,8 @@ Type_Variable :: struct {
 	struct_field_parent : *AST_Node;
 
 	typename : string;
-	// is_array : bool;
+	element_type : Type_Variable_Handle;
-	element_type     : Type_Kind;
+	element_count    : int;
-	element_typename : string;
 	
 	MAX_TYPE_VARIABLE_CHILDREN :: 32;
 	children : Static_Array(Type_Variable_Handle, MAX_TYPE_VARIABLE_CHILDREN);
@@ -115,6 +117,7 @@ Scope_Kind :: enum {
 	Global;
 	Function;
 	Struct;
+	Block;
 }
 
 Scope :: struct {
@@ -545,11 +548,11 @@ type_mismatch :: (checker : *Checker, usage_site : *AST_Node, expect_node : *AST
 			child_handle := got_var.children[i];
 			child := from_handle(checker, child_handle);
 
-			print_to_builder(*builder, "% : %", child.name, type_to_string(child));
+			print_to_builder(*builder, "% : %", child.name, type_to_string(checker.ctx.type_variables, child));
 		}
 	}
 
-	print_to_builder(*builder, "Type mismatch. Expected % got %\n", type_to_string(expect_var), type_to_string(got_var));
+	print_to_builder(*builder, "Type mismatch. Expected % got %\n", type_to_string(checker.ctx.type_variables, expect_var), type_to_string(checker.ctx.type_variables, got_var));
 
 	cyan(*builder);
 	location := usage_site.source_location;
@@ -819,7 +822,16 @@ new_builtin_function :: (checker : *Checker, name : string, args : []Arg, return
 
 	if return_arg.typename.count > 0 {
 		return_var, return_handle := new_type_variable(checker);
-		return_var.type = lookup_type(checker, checker.current_scope, return_arg.typename, *return_var.typename);
+		symb : Defined_Symbol;
+		return_var.type = lookup_type(checker, checker.current_scope, return_arg.typename, *return_var.typename, *symb);
+		if symb.type_variable > 0 {
+			symb_var := from_handle(checker, symb.type_variable);
+			if symb_var.type == .Array || symb_var.type == .Buffer {
+				return_var.element_type = symb_var.element_type;
+				// return_var.element_typename = symb_var.element_typename;
+				return_var.element_count = symb_var.element_count;
+			}
+		}
 		from_handle(checker, handle).return_type_variable = return_handle;
 	}
 
@@ -917,7 +929,6 @@ proper_type_to_string :: (ctx : *Compiler_Context, builder : *String_Builder, va
 			}
 			
 			append(builder, ")");
-
 			if var.return_type_variable > 0 {
 				append(builder, " -> ", );
 				return_var := from_handle(variables, var.return_type_variable);
@@ -961,7 +972,7 @@ proper_type_to_string :: (ctx : *Compiler_Context, variables : []Type_Variable,
 	return "______not proper type______";
 }
 
-lookup_type :: (checker : *Checker, scope : Scope_Handle, type_string : string, typename : *string = null) -> Type_Kind {
+lookup_type :: (scope_stack : Scope_Stack, variables : []Type_Variable, scope : Scope_Handle, type_string : string, typename : *string = null, out_symbol : *Defined_Symbol = null) -> Type_Kind {
 	if type_string == {
 		case Typenames[Type_Kind.Int];       return .Int;
 		case Typenames[Type_Kind.Half];      return .Half;
@@ -971,9 +982,12 @@ lookup_type :: (checker : *Checker, scope : Scope_Handle, type_string : string,
 		case Typenames[Type_Kind.Texture2D]; return .Texture2D;
 	}
 
-	symbol := find_symbol(checker, type_string, scope);
+	symbol := find_symbol(scope_stack, type_string, scope);
 	if symbol {
-		symbol_var := from_handle(checker, symbol.type_variable);
+		if out_symbol {
+			out_symbol.* = symbol.*;
+		}
+		symbol_var := from_handle(variables, symbol.type_variable);
 		if symbol_var.type == .Struct {
 			if typename {
 				typename.* = symbol_var.typename;
@@ -987,15 +1001,21 @@ lookup_type :: (checker : *Checker, scope : Scope_Handle, type_string : string,
 	return .Invalid;
 }
 
+lookup_type :: (checker : *Checker, scope : Scope_Handle, type_string : string, typename : *string = null, out_symbol : *Defined_Symbol = null) -> Type_Kind {
+	return lookup_type(checker.ctx.scope_stack, checker.ctx.type_variables, scope, type_string, typename, out_symbol);
+}
+
 lookup_type :: (checker : *Checker, scope : Scope_Handle, node : *AST_Node, typename : *string = null) -> Type_Kind {
 	type_string := node.token.ident_value;
 	return lookup_type(checker, scope, type_string, typename);
 }
 
 check_block :: (checker : *Checker, node : *AST_Node) {
+	push_scope(checker, kind = Scope_Kind.Block);
 	for child : node.children {
 		check_node(checker, child);
 	}
+	pop_scope(checker);
 }
 
 declare_struct :: (checker : *Checker, node : *AST_Node, name : string) -> Type_Variable_Handle {
@@ -1055,6 +1075,20 @@ declare_cbuffer :: (checker : *Checker, node : *AST_Node) -> Type_Variable_Handl
 	return type_var;
 }
 
+declare_buffer :: (checker : *Checker, node : *AST_Node) -> Type_Variable_Handle {
+	variable, handle := new_type_variable(checker);
+	variable.type        = .Buffer;
+	variable.source_kind = .Declaration;
+	variable.name        = node.name;
+	
+	variable.element_type  = declare_struct(checker, node); // Won't work entirely like this. At least we're going to need some access changes
+	
+	variable.resource_index = checker.current_buffer_index;
+	checker.current_buffer_index += 1;
+	array_add(*checker.ctx.buffers, handle);
+	return handle;
+}
+
 get_actual_function_name :: (node : *AST_Node) -> string {
 	name_to_check := node.name;
 	if node.vertex_entry_point {
@@ -1262,7 +1296,7 @@ check_variable :: (checker : *Checker, node : *AST_Node, struct_field_parent : *
 		}
 
 		if node.children.count > 0 {
-			if variable.type != .Struct && variable.type != .CBuffer {
+			if variable.type != .Struct && variable.type != .CBuffer && variable.type != .Buffer {
 				field_access_on_primitive_type(checker, node, find_result.type_variable);
 				return 0;
 			} else if variable.type == .Array {
@@ -1309,11 +1343,14 @@ check_field :: (checker : *Checker, node : *AST_Node) -> Type_Variable_Handle {
 	variable.name = node.name;
 	typename : string;
 
-
-	// variable.is_array = node.array_field;
 	if node.array_field {
 		variable.type = .Array;
-		variable.element_type = lookup_type(checker, checker.current_scope, node, *variable.element_typename);
+		element_type, element_handle := new_type_variable(checker);
+		element_type.type = lookup_type(checker, checker.current_scope, node, *element_type.typename);
+		element_type.scope = checker.current_scope;
+
+		variable.element_type = element_handle;
+		variable.element_count = node.children[0].integer_value;
 	} else {
 		variable.type = lookup_type(checker, checker.current_scope, node, *typename);
 	}
@@ -1559,6 +1596,11 @@ check_node :: (checker : *Checker, node : *AST_Node) -> Type_Variable_Handle {
 			add_child(variable, rhs_var);
 
 			if node.token.kind == {
+				case .TOKEN_LEFTBRACKET; {
+					element := from_handle(checker, lhs_type.element_type);
+					variable.type     = element.type;
+					variable.typename = element.typename;
+				}
 				case .TOKEN_PLUS;  #through;
 				case .TOKEN_MINUS; #through;
 				case .TOKEN_STAR;  #through;
@@ -1605,10 +1647,13 @@ check_node :: (checker : *Checker, node : *AST_Node) -> Type_Variable_Handle {
 			loop_iterator := node.token;
 			// @Incomplete: Missing scope here?
 
+			scope, scope_handle := push_scope(checker, kind = .Block); 
+
 			symbol : Defined_Symbol;
 			symbol.name = loop_iterator.ident_value;
 			symbol.source_node = node;
 			variable, handle := new_type_variable(checker);
+			variable.scope = scope_handle;
 			variable.name = symbol.name;
 			typename : string;
 			variable.type = .Int;
@@ -1628,6 +1673,7 @@ check_node :: (checker : *Checker, node : *AST_Node) -> Type_Variable_Handle {
 			}
 
 			check_block(checker, node.children[2]);
+			pop_scope(checker);
 		}
 		case .If; {
 			cond_var := check_node(checker, node.children[0]);
@@ -1781,6 +1827,8 @@ check_declaration :: (checker : *Checker, declaration : *AST_Node) {
 		declare_cbuffer(checker, declaration);
 	} else if declaration.kind == .If_Directive {
 		check_if_directive(checker, declaration);
+	} else if declaration.kind == .Buffer {
+		declare_buffer(checker, declaration);
 	}
 }
 
@@ -2249,8 +2297,7 @@ check :: (ctx : *Compiler_Context, allocator : Allocator = temp) {
 // Pretty printing
 
 #scope_file
-
+type_to_string :: (variables : []Type_Variable, type_variable : Type_Variable, allocator := context.allocator) -> string {
-type_to_string :: (type_variable : Type_Variable) -> string {
 	if type_variable.type == {
 		case .Invalid;
 		return "{{invalid}}";
@@ -2268,8 +2315,10 @@ type_to_string :: (type_variable : Type_Variable) -> string {
 		case .Struct; {
 			return type_variable.typename;
 		}
+		case .Buffer; #through;
 		case .Array;
-		// return "array";
+		element_type := from_handle(variables, type_variable.element_type);
+		return sprint("[%].%", type_variable.element_count, type_to_string(variables, element_type));
 	}
 	return "";
 }
@@ -2302,7 +2351,7 @@ pretty_print_function :: (scope_stack : *Scope_Stack, current_scope : Scope_Hand
 					if tv.builtin {
 						print_to_builder(builder, "%", tv.name);
 					} else {
-						print_to_builder(builder, "% : %", tv.name, type_to_string(tv));
+						print_to_builder(builder, "% : %", tv.name, type_to_string(variables, tv));
 					}
 				} else {
 					pretty_print_function(scope_stack, current_scope, variables, builder, "", tv, 0);
@@ -2316,30 +2365,35 @@ pretty_print_function :: (scope_stack : *Scope_Stack, current_scope : Scope_Hand
 	}
 
 	if function.return_type_variable> 0 {
-		print_to_builder(builder, ") -> %\n", type_to_string(from_handle(variables, function.return_type_variable)));
+		print_to_builder(builder, ") -> %\n", type_to_string(variables, from_handle(variables, function.return_type_variable)));
 	} else {
 		append(builder, ")\n");
 	}
 }
 
-pretty_print_struct :: (scope_stack : *Scope_Stack, current_scope : Scope_Handle, variables : []Type_Variable, builder : *String_Builder, name : string, struct_type : Type_Variable, indentation : int) {
+pretty_print_struct :: (ctx : *Compiler_Context, scope_stack : *Scope_Stack, current_scope : Scope_Handle, variables : []Type_Variable, builder : *String_Builder, name : string, struct_field : Type_Variable, indentation : int) {
 	indent(builder, indentation);
 	print_key(scope_stack, current_scope, builder, name);
+
 	append(builder, "{");
 
+	struct_symbol : Defined_Symbol;
+	lookup_type(scope_stack, variables, current_scope, struct_field.typename, null, *struct_symbol);
+	struct_type := from_handle(variables, struct_symbol.type_variable);
+
 	for 0..struct_type.children.count - 1 {
 		child_handle := struct_type.children[it];
 		child := from_handle(variables, child_handle);
 		print_to_builder(builder, child.name);
 		append(builder, " : ");
-		print_to_builder(builder, type_to_string(child));
+		print_to_builder(builder, type_to_string(variables, child));
 
 		if it < struct_type.children.count - 1 {
 			append(builder, ", ");
 		}
 	}
 	
-	append(builder, "}\n");
+	append(builder, "}");
 }
 
 pretty_print_scope :: (ctx : *Compiler_Context, current_scope : Scope_Handle, scope_stack : Scope_Stack, variables : []Type_Variable, scope : *Scope, builder : *String_Builder, indentation : int = 0) {
@@ -2354,7 +2408,20 @@ pretty_print_scope :: (ctx : *Compiler_Context, current_scope : Scope_Handle, sc
 	if scope.name.count > 0 {
 		print_to_builder(builder, "%", scope.name);
 	} else {
-		append(builder, "global");
+		if scope.kind == {
+			case .Global; {
+				append(builder, "global");
+			}
+			case .Block; {
+				append(builder, "block");
+			}
+			case .Function; {
+				append(builder, "function");
+			}
+			case .Struct; {
+				append(builder, "struct");
+			}
+		}
 	}
 	append(builder, ") [");
 	if scope.table.count > 0 {
@@ -2372,23 +2439,6 @@ pretty_print_scope :: (ctx : *Compiler_Context, current_scope : Scope_Handle, sc
 					case .Function; {
 						pretty_print_function(*scope_stack, current_scope, variables, builder, key, type_variable, 1);
 					}
-					case .CBuffer;    #through;
-					case .Struct; {
-						if type_variable.typename.count > 0 && type_variable.source_kind != .Declaration {
-							indent(builder, indentation + 1);
-							print_key(*scope_stack, current_scope, builder, key);
-							print_type_variable(ctx, builder, variables, type_variable);
-							append(builder, "\n");
-							// print_to_builder(builder, "%\n", type_variable.typename);
-						} else {
-							pretty_print_struct(*scope_stack, current_scope, variables, builder, key, type_variable, 1);
-						}
-					}
-					case; {
-						indent(builder, indentation + 1);
-						print_key(*scope_stack, current_scope, builder, key);
-						print_to_builder(builder, "%\n", type_to_string(type_variable));
-					}
 				}
 			}
 		} else {
@@ -2397,24 +2447,27 @@ pretty_print_scope :: (ctx : *Compiler_Context, current_scope : Scope_Handle, sc
 				case .Function; {
 					pretty_print_function(*scope_stack, current_scope, variables, builder, key, type_variable, 1);
 				}
-				case .CBuffer;    #through;
+				case .CBuffer; {
+					pretty_print_struct(ctx, *scope_stack, current_scope, variables, builder, key, type_variable, 1);
+					append(builder, "\n");
+				}
 				case .Struct; {
-					if type_variable.typename.count > 0 && type_variable.source_kind != .Declaration {
+					if type_variable.typename.count > 0 && !type_variable.builtin && (type_variable.source_kind != .Declaration || type_variable.source_node.kind != .Struct) {
 						indent(builder, indentation + 1);
 						print_key(*scope_stack, current_scope, builder, key);
 						print_to_builder(builder, "%\n", type_variable.typename);
 					} else {
-						pretty_print_struct(*scope_stack, current_scope, variables, builder, key, type_variable, 1);
+						pretty_print_struct(ctx, *scope_stack, current_scope, variables, builder, key, type_variable, indentation);
+						append(builder, "\n");
 					}
 				}
 				case; {
 					indent(builder, indentation + 1);
 					print_key(*scope_stack, current_scope, builder, key);
-					print_to_builder(builder, "%\n", type_to_string(type_variable));
+					print_to_builder(builder, "%\n", type_to_string(variables, type_variable));
 				}
 			}
 		}
-		
 	}
 	
 	for child : scope.children {
@@ -2422,7 +2475,7 @@ pretty_print_scope :: (ctx : *Compiler_Context, current_scope : Scope_Handle, sc
 		pretty_print_scope(ctx, current_scope, *scope_stack, variables, child_scope, builder, indentation + 1);
 	}
 
-	if scope.table.count > 0 {
+	if (scope.table.count > 0 || scope.children.count > 0) {
 		indent(builder, indentation);
 	}
 	append(builder, "]\n");
@@ -2431,7 +2484,7 @@ pretty_print_scope :: (ctx : *Compiler_Context, current_scope : Scope_Handle, sc
 print_type_variable :: (ctx : *Compiler_Context, builder : *String_Builder, variables : []Type_Variable, variable : Type_Variable) {
 	if variable.builtin {
 		if variable.type != .Function || variable.type != .Struct {
-			print_to_builder(builder, "%", type_to_string(variable));
+			print_to_builder(builder, "%", type_to_string(variables, variable));
 		} else {
 			print_to_builder(builder, "%", variable.name);
 		}

Codegen.jai

@@ -22,7 +22,7 @@ Codegen_State :: struct {
 
 	builder : String_Builder;
 
-	result : *Compiler_Context;
+	ctx : *Compiler_Context;
 }
 
 Reserved_HLSL_Words :: string.[
@@ -44,7 +44,7 @@ Reserved_GLSL_Words :: string.[
 	""
 ];
 
-init_codegen_state :: (state : *Codegen_State, result : *Compiler_Context, output_language : Output_Language) {
+init_codegen_state :: (state : *Codegen_State, ctx : *Compiler_Context, output_language : Output_Language) {
 	state.current_scope   = cast(Scope_Handle)1;
 	state.output_language = output_language;
 	init_string_builder(*state.builder);
@@ -54,7 +54,11 @@ indent :: (state : *Codegen_State, indentation : int) {
 	for 1..indentation append(*state.builder, "    ");
 }
 
-hlsl_type_to_string :: (type_variable : Type_Variable) -> string {
+hlsl_type_to_string :: (variables : []Type_Variable, type_handle : Type_Variable_Handle) -> string {
+	return hlsl_type_to_string(variables, from_handle(variables, type_handle));
+}
+
+hlsl_type_to_string :: (variables : []Type_Variable, type_variable : Type_Variable) -> string {
 	if type_variable.type == {
 		case .Invalid;
 		return "{{invalid}}";
@@ -83,20 +87,20 @@ hlsl_type_to_string :: (type_variable : Type_Variable) -> string {
 			return type_variable.typename;
 		}
 		case .Array;
-		return "array";
+		return hlsl_type_to_string(variables, type_variable.element_type);
 	}
 
 	return "";
 }
 
 emit_field :: (state : *Codegen_State, node : *AST_Node, indentation : int) {
-	find_result := find_symbol(state.result.scope_stack, node.name, state.current_scope);
+	find_result := find_symbol(state.ctx.scope_stack, node.name, state.current_scope);
 
-	field := from_handle(state.result.type_variables, find_result.type_variable);
+	field := from_handle(state.ctx.type_variables, find_result.type_variable);
 
 	indent(state, indentation);
 
-	print_to_builder(*state.builder, "% ", hlsl_type_to_string(field));
+	print_to_builder(*state.builder, "% ", hlsl_type_to_string(state.ctx.type_variables, field));
 
 	print_to_builder(*state.builder, "%", node.name);
 
@@ -111,8 +115,14 @@ emit_field :: (state : *Codegen_State, node : *AST_Node, indentation : int) {
 	if node.children.count == 1 {
 		child := node.children[0];
 
-		print_to_builder(*state.builder, " = ");
+		if field.type == .Array {
-		emit_node(state, child, 0);		
+			append(*state.builder, "[");
+			emit_node(state, child, 0);
+			append(*state.builder, "]");
+		} else {
+			print_to_builder(*state.builder, " = ");
+			emit_node(state, child, 0);		
+		}
 	}
 
 	if node.parent.kind == .Block {
@@ -120,7 +130,7 @@ emit_field :: (state : *Codegen_State, node : *AST_Node, indentation : int) {
 	}
 
 	for i :0..field.children.count - 1 {
-		child := from_handle(state.result.type_variables, field.children[i]);
+		child := from_handle(state.ctx.type_variables, field.children[i]);
 		emit_node(state, child.source_node, 0);
 	}
 
@@ -206,7 +216,7 @@ emit_call :: (state : *Codegen_State, node : *AST_Node, indentation : int) {
 
 emit_function :: (state : *Codegen_State, node : *AST_Node, indentation : int, emit_body := true) {
 	name := get_actual_function_name(node);
-	find_result := find_symbol(state.result.scope_stack, name, state.current_scope);
+	find_result := find_symbol(state.ctx.scope_stack, name, state.current_scope);
 
 	assert(find_result != null, "Attempting to generate undeclared function. This should never happen at this stage.");
 	if !find_result {
@@ -214,17 +224,17 @@ emit_function :: (state : *Codegen_State, node : *AST_Node, indentation : int, e
 		message.message_kind = .Internal_Error;
 		message.path = state.path;
 		message.message = "Attempting to generate undeclared function. This should never happen at this stage.";
-		array_add(*state.result.messages, message);
+		array_add(*state.ctx.messages, message);
 	}
 
 	for func : find_result.functions {
-		function_variable := from_handle(state.result.type_variables, func.type_variable);
+		function_variable := from_handle(state.ctx.type_variables, func.type_variable);
 
 		indent(state, indentation);
 
 		if function_variable.return_type_variable {
-			return_variable := from_handle(state.result.type_variables, function_variable.return_type_variable);
+			return_variable := from_handle(state.ctx.type_variables, function_variable.return_type_variable);
-			print_to_builder(*state.builder, "% ", hlsl_type_to_string(return_variable));
+			print_to_builder(*state.builder, "% ", hlsl_type_to_string(state.ctx.type_variables, return_variable));
 		} else {
 			append(*state.builder, "void ");
 		}
@@ -360,7 +370,7 @@ emit_node :: (state : *Codegen_State, node : *AST_Node, indentation : int) {
 		case .Variable; {
 			indent(*state.builder, indentation);
 
-			type_var := from_handle(state.result.type_variables, node.type_variable);
+			type_var := from_handle(state.ctx.type_variables, node.type_variable);
 
 			print_to_builder(*state.builder, "%", node.name);
 
@@ -372,19 +382,29 @@ emit_node :: (state : *Codegen_State, node : *AST_Node, indentation : int) {
 		case .Binary; {
 			indent(*state.builder, indentation);
 
-			if node.token.kind != .TOKEN_ASSIGN {
+			if node.token.kind != .TOKEN_ASSIGN && node.token.kind != .TOKEN_LEFTBRACKET {
 				append(*state.builder, "(");
 			}
 			
 			lhs := node.children[0];
 			rhs := node.children[1];
-			emit_node(state, lhs, 0);
 
-			append(*state.builder, " ");
+			if node.token.kind == .TOKEN_LEFTBRACKET {
-			emit_operator(state, node.token.kind);
+				emit_node(state, lhs, 0);
-			append(*state.builder, " ");
+				append(*state.builder, "[");
-			emit_node(state, rhs, 0);
+				emit_node(state, rhs, 0);
-			if node.token.kind != .TOKEN_ASSIGN {
+				append(*state.builder, "]");
+			} else {
+				emit_node(state, lhs, 0);
+				append(*state.builder, " ");
+				emit_operator(state, node.token.kind);
+				append(*state.builder, " ");
+				emit_node(state, rhs, 0);
+			}
+			
+
+			
+			if node.token.kind != .TOKEN_ASSIGN && node.token.kind != .TOKEN_LEFTBRACKET {
 				append(*state.builder, ")");
 			}			
 		}
@@ -486,7 +506,7 @@ emit_struct :: (state : *Codegen_State, node : *AST_Node, indentation : int) {
 	print_to_builder(*state.builder, "struct %", node.name);
 
 	current_scope := state.current_scope;
-	state.current_scope = from_handle(state.result.type_variables, node.type_variable).scope;
+	state.current_scope = from_handle(state.ctx.type_variables, node.type_variable).scope;
 
 	field_list := node.children[0];
 
@@ -503,11 +523,11 @@ emit_struct :: (state : *Codegen_State, node : *AST_Node, indentation : int) {
 }
 
 emit_cbuffer :: (state : *Codegen_State, node : *AST_Node, indentation : int) {
-	variable := from_handle(state.result.type_variables, node.type_variable);
+	variable := from_handle(state.ctx.type_variables, node.type_variable);
 	print_to_builder(*state.builder, "cbuffer % : register(b%)", variable.name, variable.resource_index);
 	
 	current_scope := state.current_scope;
-	state.current_scope = from_handle(state.result.type_variables, node.type_variable).scope;
+	state.current_scope = from_handle(state.ctx.type_variables, node.type_variable).scope;
 
 	field_list := node.children[0];
 	
@@ -553,7 +573,7 @@ codegen :: (result : *Compiler_Context, output_language : Output_Language, alloc
 		defer clear_context_allocators();
 		
 		state : Codegen_State;
-		state.result          = result;
+		state.ctx          = result;
 		state.current_scope   = cast(Scope_Handle)1;
 		state.output_language = output_language;
 		init_string_builder(*state.builder);
@@ -567,7 +587,7 @@ codegen :: (state : *Codegen_State) {
 	found_function : bool = false;
 	// found_struct   : bool = false;
 
-	// for variable : state.result.type_variables {
+	// for variable : state.ctx.type_variables {
 	// 	if variable.type == .Struct && variable.kind == .Declaration && !variable.builtin {
 	// 		if variable.source_node.kind == .Properties continue;
 	// 		if variable.source_node.kind == .Meta continue;
@@ -580,7 +600,7 @@ codegen :: (state : *Codegen_State) {
 	// 	append(*state.builder, "\n");
 	// }
 	
-	for variable : state.result.type_variables {
+	for variable : state.ctx.type_variables {
 		if variable.type == .Function && !variable.builtin
 			&& !variable.source_node.vertex_entry_point && !variable.source_node.pixel_entry_point {
 				emit_function(state, variable.source_node, 0, false);
@@ -591,14 +611,14 @@ codegen :: (state : *Codegen_State) {
 		append(*state.builder, "\n");
 	}
 	
-	for declaration : state.result.root.children {
+	for declaration : state.ctx.root.children {
 		if declaration.foreign_declaration {
 			continue;
 		}
 		emit_declaration(state, declaration);
 	}
 
-	state.result.codegen_result_text = builder_to_string(*state.builder);
+	state.ctx.codegen_result_text = builder_to_string(*state.builder);
 }
 
 #scope_module

Lexing.jai

@@ -92,6 +92,7 @@ Token_Kind :: enum {
 	TOKEN_OUT;
 
 	TOKEN_PIXEL;
+	TOKEN_PLEX;
 
 	TOKEN_RETURN;
 	TOKEN_REGISTER;
@@ -247,6 +248,7 @@ identifier_kind :: (using lexer : *Lexer) -> Token_Kind {
 	if identifier == "return"          return .TOKEN_RETURN;
 	if identifier == "register"        return .TOKEN_REGISTER;
 	if identifier == "struct"          return .TOKEN_STRUCT;
+	if identifier == "plex"            return .TOKEN_STRUCT;
 	if identifier == "switch"          return .TOKEN_SWITCH;
 	if identifier == "true"            return .TOKEN_TRUE;
 	if identifier == "unorm"           return .TOKEN_UNORM;
@@ -758,35 +760,31 @@ print_from_source_location :: (ctx : *Compiler_Context, builder : *String_Builde
 			text.count = tok.length;
 			print_to_builder(builder, "%", text);
 		}
-		return;
 	} else {
+		begin_pos := 0;
+		token_string : string;
+		count := end.index - begin.index + end.length;
 
-	}
+		if indentation > 0 {
+			indent(builder, indentation);
+			for 0..count - 1 {
+				c := begin.source[it];
+				if c == #char "\n" {
+					append(builder, "\n");
+					indent(builder, indentation);
+				} else {
+					s : string;
+					s.count = 1;
+					s.data = *c;
+					print_to_builder(builder, "%", s);
+				}
 
-
-	begin_pos := 0;
-	token_string : string;
-	count := end.index - begin.index + end.length;
-
-	if indentation > 0 {
-		indent(builder, indentation);
-		for 0..count - 1 {
-			c := begin.source[it];
-			if c == #char "\n" {
-				append(builder, "\n");
-				indent(builder, indentation);
-			} else {
-				s : string;
-				s.count = 1;
-				s.data = *c;
-				print_to_builder(builder, "%", s);
 			}
-
+		} else {
+			token_string = .{ count = count, data = begin.source };
+			indent(builder, indentation);
+			print_to_builder(builder, "%", token_string);
 		}
-	} else {
-		token_string = .{ count = count, data = begin.source };
-		indent(builder, indentation);
-		print_to_builder(builder, "%", token_string);
 	}
 }
 

Parsing.jai

@@ -1368,8 +1368,35 @@ function_declaration :: (parse_state : *Parse_State, identifier_token : *Token,
 }
 
 buffer :: (state : *Parse_State, identifier_token : *Token = null) -> *AST_Node {
-	internal_error_message(*state.ctx.messages, "Buffers are not yet implemented in the language.", state.ctx.file.path);
+	node : *AST_Node = make_node(state, .Buffer);
-	return null;
+	source_location : Source_Range;
+	source_location.begin = state.current;
+
+	if check(state, .TOKEN_AT) {
+		while check(state, .TOKEN_AT) {
+			advance(state);
+			// @Incomplete(niels): this is a mapping
+			if check(state, .TOKEN_IDENTIFIER) {
+				array_add(*node.hint_tokens, state.current);
+				advance(state);
+			}
+		}
+	}
+	
+	consume(state, .TOKEN_LEFTBRACE, "Expect '{' after 'buffer' keyword");
+	buffer := field_list(state, .Semicolon);
+	node.array_field = true;
+
+	if identifier_token {
+		node.name = identifier_token.ident_value;
+	}
+	add_child(node, buffer);
+	
+	consume(state, .TOKEN_RIGHTBRACE, "Expect '}' after 'buffer' block");
+	source_location.end = state.previous;
+	node.source_location = source_location;
+
+	return node;
 }
 
 constant_buffer :: (parse_state : *Parse_State, identifier_token : *Token = null) -> *AST_Node {

module.jai

@@ -155,6 +155,7 @@ Compiler_Context :: struct {
 	codegen_result_text : string;
 
 	constant_buffers : Static_Array(Type_Variable_Handle, 16);
+	buffers : Static_Array(Type_Variable_Handle, 16);
 
 	scope_stack : Scope_Stack;
 	type_variables : [..]Type_Variable;
@@ -321,11 +322,7 @@ pretty_print_field :: (builder : *String_Builder, field : *Field) {
 	}
 }
 
-type_variable_to_field :: (checker : *Checker, variable : Type_Variable_Handle) -> Field {
+type_variable_to_field :: (ctx : *Compiler_Context, variable : *Type_Variable) -> Field {
-	return type_variable_to_field(checker, from_handle(checker, variable));
-}
-
-type_variable_to_field :: (type_variables : []Type_Variable, scope_stack : Scope_Stack, variable : *Type_Variable) -> Field {
 	field : Field;
 
 	field.name = variable.name;
@@ -358,14 +355,14 @@ type_variable_to_field :: (type_variables : []Type_Variable, scope_stack : Scope
 		case .Struct; {
 			type.kind = Field_Kind.Struct;
 
-			find_result := find_symbol(scope_stack, variable.typename, xx 1);
+			find_result := find_symbol(ctx.scope_stack, variable.typename, xx 1);
 			assert(find_result != null, "Internal compiler error\n");
 
-			type_var := from_handle(type_variables, find_result.type_variable);
+			type_var := from_handle(ctx.type_variables, find_result.type_variable);
 
 			for i : 0..type_var.children.count - 1 {
 				child := type_var.children[i];
-				child_field := type_variable_to_field(type_variables, scope_stack, child);
+				child_field := type_variable_to_field(ctx, child);
 				array_add(*type.children, child_field);
 			}
 
@@ -402,12 +399,8 @@ type_variable_to_field :: (type_variables : []Type_Variable, scope_stack : Scope
 	return field;
 }
 
-type_variable_to_field :: (type_variables : []Type_Variable, scope_stack : Scope_Stack, variable : Type_Variable_Handle) -> Field {
+type_variable_to_field :: (ctx : *Compiler_Context, variable : Type_Variable_Handle) -> Field {
-	return type_variable_to_field(type_variables, scope_stack, from_handle(type_variables, variable));
+	return type_variable_to_field(ctx, from_handle(ctx.type_variables, variable));
-}
-
-type_variable_to_field :: (checker : *Checker, variable : *Type_Variable) -> Field {
-	return type_variable_to_field(checker.ctx.type_variables, checker.ctx.scope_stack, variable);
 }
 
 generate_output_data :: (ctx : *Compiler_Context) {
@@ -427,7 +420,7 @@ generate_output_data :: (ctx : *Compiler_Context) {
 				field_list := node.children[0];
 				for child : field_list.children {
 					tv := from_handle(ctx.type_variables, child.type_variable);
-					field := type_variable_to_field(ctx.type_variables, ctx.scope_stack, tv);
+					field := type_variable_to_field(ctx, tv);
 					array_add(*ctx.vertex_entry_point.input, field);
 				}
 			}
@@ -442,7 +435,7 @@ generate_output_data :: (ctx : *Compiler_Context) {
 
 		for i : 0..variable.children.count - 1 {
 			child := variable.children[i];
-			field : Field = type_variable_to_field(ctx.type_variables, ctx.scope_stack, from_handle(ctx.type_variables, child));
+			field : Field = type_variable_to_field(ctx, from_handle(ctx.type_variables, child));
 			array_add(*cb.fields, field);
 		}
 
@@ -463,7 +456,7 @@ generate_output_data :: (ctx : *Compiler_Context) {
 		assert(type_variable.type == .Function);
 
 		if type_variable.return_type_variable > 0 {
-			field := type_variable_to_field(ctx.type_variables, ctx.scope_stack, type_variable.return_type_variable);
+			field := type_variable_to_field(ctx, type_variable.return_type_variable);
 			for hint : type_variable.source_node.hint_tokens {
 				field_hint : Field_Hint;
 

test/buffers.ink

@@ -0,0 +1,11 @@
+property_buffer :: buffer {
+	color : float4;
+}
+
+cbuffer :: constant_buffer {
+	color : float4;
+}
+
+pixel main :: (index : int) {
+	return property_buffer[index].color;
+}

test/check/empty_struct.golden

@@ -1,4 +1,4 @@
 scope (global) [
-    [Foo]        : {}
+[Foo]        : {}
     scope (Foo) []
 ]

test/check/for_i_loop.golden

@@ -1,7 +1,10 @@
 scope (global) [
     [vertex__vs_main] : ()
     scope (vertex__vs_main) [
-        [i]               : int
         [x]               : int
+        scope (block) [
+            [i]               : int
+            scope (block) []
+        ]
     ]
 ]

test/check/if_def_block.golden

@@ -1,7 +1,8 @@
 scope (global) [
     [pixel__ps_main] : ()
-    scope (pixel__ps_main) [
+    scope (pixel__ps_main) [        scope (block) [
-        [alpha_color]    : float4
+            [alpha_color]    : float4
-        [f]              : float
+            [f]              : float
+        ]
     ]
 ]

test/check/nested_if.golden

@@ -2,5 +2,8 @@ scope (global) [
     [vertex__vs_main] : (pos : float3) -> float4
     scope (vertex__vs_main) [
         [pos]             : float3
+        scope (block) [            scope (block) []
+            scope (block) []
+        ]
     ]
 ]

test/check/pass_and_access_struct_fields_in_functions.golden

@@ -1,7 +1,7 @@
 scope (global) [
     [foo]             : (f : Foo) -> float
     [vertex__vs_main] : ()
-    [Foo]             : {some_data : float}
+[Foo]             : {some_data : float}
     scope (Foo) [
         [some_data]       : float
     ]

test/check/simple_else_if.golden

@@ -2,5 +2,8 @@ scope (global) [
     [vertex__vs_main] : (pos : float3) -> float4
     scope (vertex__vs_main) [
         [pos]             : float3
+        scope (block) []
+        scope (block) []
+        scope (block) []
     ]
 ]

test/check/simple_if.golden

@@ -2,5 +2,6 @@ scope (global) [
     [vertex__vs_main] : (pos : float3) -> float4
     scope (vertex__vs_main) [
         [pos]             : float3
+        scope (block) []
     ]
 ]

test/check/simple_if_else.golden

@@ -2,5 +2,7 @@ scope (global) [
     [vertex__vs_main] : (pos : float3) -> float4
     scope (vertex__vs_main) [
         [pos]             : float3
+        scope (block) []
+        scope (block) []
     ]
 ]

test/check/simple_struct_access.golden

@@ -1,5 +1,5 @@
 scope (global) [
-    [Data]            : {color : float4}
+[Data]            : {color : float4}
     [vertex__vs_main] : ()
     scope (Data) [
         [color]           : float4

test/check/struct_within_struct.golden

@@ -1,7 +1,7 @@
 scope (global) [
-    [Bar]             : {t : Foo}
+[Bar]             : {t : Foo}
     [vertex__vs_main] : ()
-    [Foo]             : {color : float4}
+[Foo]             : {color : float4}
     scope (Foo) [
         [color]           : float4
     ]

test/codegen/arrays.golden

@@ -0,0 +1,6 @@
+float4 vs_main() : SV_POSITION
+{
+    float4 arr[16];
+    return arr[0];
+}
+