Creating native definitions - Part 1

Makefile

@@ -1,4 +1,4 @@
-OBJECTS = ./build/compiler.o ./build/cprocess.o ./build/lexer.o ./build/lex_process.o ./build/token.o ./build/parser.o ./build/node.o ./build/expressionable.o ./build/datatype.o ./build/scope.o ./build/symresolver.o ./build/array.o ./build/fixup.o ./build/codegen.o ./build/stackframe.o ./build/resolver.o ./build/rdefault.o ./build/helper.o ./build/preprocessor.o ./build/helpers/buffer.o ./build/helpers/vector.o
+OBJECTS = ./build/compiler.o ./build/cprocess.o ./build/lexer.o ./build/lex_process.o ./build/token.o ./build/parser.o ./build/node.o ./build/expressionable.o ./build/datatype.o ./build/scope.o ./build/symresolver.o ./build/array.o ./build/fixup.o ./build/codegen.o ./build/stackframe.o ./build/resolver.o ./build/rdefault.o ./build/helper.o ./build/preprocessor.o ./build/native.o ./build/helpers/buffer.o ./build/helpers/vector.o
 INCLUDES = -I./
 
 all: ${OBJECTS}
@@ -61,6 +61,9 @@ all: ${OBJECTS}
 ./build/preprocessor.o: ./preprocessor/preprocessor.c
 	gcc ./preprocessor/preprocessor.c ${INCLUDES} -g -c -o ./build/preprocessor.o
 
+./build/native.o: ./preprocessor/native.c
+	gcc ./preprocessor/native.c ${INCLUDES} -g -c -o ./build/native.o
+
 ./build/helpers/buffer.o: ./helpers/buffer.c
 	gcc ./helpers/buffer.c -o ./build/helpers/buffer.o -g -c
 

preprocessor/native.c

@@ -0,0 +1,35 @@
+#include "compiler.h"
+#include "preprocessor/preprocessor.h"
+
+int preprocessor_line_macro_evaluate(struct preprocessor_definition* definition, struct preprocessor_function_arguments* arguments)
+{
+  struct preprocessor* preprocessor = definition->preprocessor;
+  struct compile_process* compiler = preprocessor->compiler;
+
+  if (arguments)
+  {
+    compiler_error(compiler, "__LINE__ macro expects no arguments");
+  }
+
+  struct token* previous_token = preprocessor_previous_token(compiler);
+  return previous_token->pos.line;
+}
+
+struct vector* preprocessor_line_macro_value(struct preprocessor_definition* definition, struct preprocessor_function_arguments* arguments)
+{
+  struct preprocessor* preprocessor = definition->preprocessor;
+  struct compile_process* compiler = preprocessor->compiler;
+
+  if (arguments)
+  {
+    compiler_error(compiler, "__LINE__ macro expects no arguments");
+  }
+
+  struct token* previous_token = preprocessor_previous_token(compiler);
+  return preprocessor_build_value_vector_for_integer(previous_token->pos.line);
+}
+
+void preprocessor_create_definitions(struct preprocessor* preprocessor)
+{
+  preprocessor_definition_create_native(preprocessor, "__LINE__", preprocessor_line_macro_evaluate, preprocessor_line_macro_value);
+}

preprocessor/preprocessor.c

@@ -125,7 +125,7 @@ void preprocessor_initialize(struct preprocessor* preprocessor)
   memset(preprocessor, 0, sizeof(struct preprocessor));
   preprocessor->definitions = vector_create(sizeof(struct preprocessor_definition*));
   preprocessor->includes = vector_create(sizeof(struct preprocessor_included_file*));
-  #warning "Create preprocessor default definitions"
+  preprocessor_create_definitions(preprocessor);
 }
 
 struct preprocessor* preprocessor_create(struct compile_process* compiler)
@@ -710,6 +710,18 @@ struct preprocessor_definition* preprocessor_get_definition(struct preprocessor*
   return definition;
 }
 
+struct preprocessor_definition* preprocessor_definition_create_native(struct preprocessor* preprocessor, const char* name, PREPROCESSOR_DEFINITION_NATIVE_CALL_EVALUATION evaluate, PREPROCESSOR_DEFINITION_NATIVE_CALL_VALUE value)
+{
+  struct preprocessor_definition* definition = calloc(1, sizeof(struct preprocessor_definition));
+  definition->type = PREPROCESSOR_DEFINITION_NATIVE_CALLBACK;
+  definition->name = name;
+  definition->native.evaluate = evaluate;
+  definition->native.value = value;
+  definition->preprocessor = preprocessor;
+  vector_push(preprocessor->definitions, &definition);
+  return definition;
+}
+
 struct preprocessor_definition* preprocessor_definition_create_typedef(struct preprocessor* preprocessor, const char* name, struct vector* value_vec)
 {
   struct preprocessor_definition* definition = calloc(1, sizeof(struct preprocessor_definition));

preprocessor/preprocessor.h

@@ -100,4 +100,12 @@ struct preprocessor
 
 // > Preprocessor structures end
 
+// Preprocessor native funtions
+void preprocessor_create_definitions(struct preprocessor* preprocessor);
+
+// Preprocessor global functions
+struct token* preprocessor_previous_token(struct compile_process* compiler);
+struct vector* preprocessor_build_value_vector_for_integer(int value);
+struct preprocessor_definition* preprocessor_definition_create_native(struct preprocessor* preprocessor, const char* name, PREPROCESSOR_DEFINITION_NATIVE_CALL_EVALUATION evaluate, PREPROCESSOR_DEFINITION_NATIVE_CALL_VALUE value);
+
 #endif