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gravity.c
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gravity.c
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//
// compiler_test.c
// gravity
//
// Created by Marco Bambini on 24/03/16.
// Copyright © 2016 CreoLabs. All rights reserved.
//
#include "gravity_compiler.h"
#include "gravity_optionals.h"
#include "gravity_utils.h"
#include "gravity_core.h"
#include "gravity_vm.h"
#include "gravity_opt_env.h"
#define DEFAULT_OUTPUT "gravity.g"
typedef struct {
bool processed;
bool is_fuzzy;
uint32_t ncount;
uint32_t nsuccess;
uint32_t nfailure;
error_type_t expected_error;
gravity_value_t expected_value;
int32_t expected_row;
int32_t expected_col;
} unittest_data;
typedef enum {
OP_COMPILE, // just compile source code and exit
OP_RUN, // just run an already compiled file
OP_COMPILE_RUN, // compile source code and run it
OP_INLINE_RUN, // compile and execute source passed inline
OP_REPL, // run a read eval print loop
OP_UNITTEST // unit test mode
} op_type;
static const char *input_file = NULL;
static const char *output_file = DEFAULT_OUTPUT;
static const char *unittest_folder = NULL;
static const char *test_folder_path = NULL;
static bool quiet_flag = false;
static void report_error (gravity_vm *vm, error_type_t error_type, const char *message, error_desc_t error_desc, void *xdata) {
(void) vm, (void) xdata;
const char *type = "N/A";
switch (error_type) {
case GRAVITY_ERROR_NONE: type = "NONE"; break;
case GRAVITY_ERROR_SYNTAX: type = "SYNTAX"; break;
case GRAVITY_ERROR_SEMANTIC: type = "SEMANTIC"; break;
case GRAVITY_ERROR_RUNTIME: type = "RUNTIME"; break;
case GRAVITY_WARNING: type = "WARNING"; break;
case GRAVITY_ERROR_IO: type = "I/O"; break;
}
if (error_type == GRAVITY_ERROR_RUNTIME) printf("RUNTIME ERROR: ");
else printf("%s ERROR on %d (%d,%d): ", type, error_desc.fileid, error_desc.lineno, error_desc.colno);
printf("%s\n", message);
}
static const char *load_file (const char *file, size_t *size, uint32_t *fileid, void *xdata, bool *is_static) {
(void) fileid, (void) xdata;
// this callback is called each time an import statement is parsed
// file arg represents what user wrote after the import keyword, for example:
// import "file2"
// import "file2.gravity"
// import "../file2"
// import "/full_path_to_file2"
// it is callback's responsibility to resolve file path based on current working directory
// or based on user defined search paths
// and returns:
// size of file in *size
// fileid (if any) in *fileid
// content of file as return value of the function
// fileid will then be used each time an error is reported by the compiler
// so it is responsibility of this function to map somewhere the association
// between fileid and real file/path name
// fileid is not used in this example
// xdata not used here but it the xdata field set in the delegate
// please note than in this simple example the imported file must be
// in the same folder as the main input file
if (is_static) *is_static = false;
if (!file_exists(file)) return NULL;
return file_read(file, size);
}
// MARK: - Unit Test -
static void unittest_init (const char *target_file, unittest_data *data) {
(void) target_file;
++data->ncount;
data->processed = false;
}
static void unittest_cleanup (const char *target_file, unittest_data *data) {
(void) target_file, (void) data;
}
static void unittest_callback (gravity_vm *vm, error_type_t error_type, const char *description, const char *notes, gravity_value_t value, int32_t row, int32_t col, void *xdata) {
(void) vm;
unittest_data *data = (unittest_data *)xdata;
data->expected_error = error_type;
data->expected_value = value;
data->expected_row = row;
data->expected_col = col;
if (notes) printf("\tNOTE: %s\n", notes);
printf("\t%s\n", description);
}
static void unittest_error (gravity_vm *vm, error_type_t error_type, const char *message, error_desc_t error_desc, void *xdata) {
(void) vm;
unittest_data *data = (unittest_data *)xdata;
if (data->processed == true) return; // ignore 2nd error
data->processed = true;
const char *type = "NONE";
if (error_type == GRAVITY_ERROR_SYNTAX) type = "SYNTAX";
else if (error_type == GRAVITY_ERROR_SEMANTIC) type = "SEMANTIC";
else if (error_type == GRAVITY_ERROR_RUNTIME) type = "RUNTIME";
else if (error_type == GRAVITY_WARNING) type = "WARNING";
if (error_type == GRAVITY_ERROR_RUNTIME) printf("\tRUNTIME ERROR: ");
else printf("\t%s ERROR on %d (%d,%d): ", type, error_desc.fileid, error_desc.lineno, error_desc.colno);
printf("%s\n", message);
bool same_error = (data->expected_error == error_type);
bool same_row = (data->expected_row != -1) ? (data->expected_row == error_desc.lineno) : true;
bool same_col = (data->expected_col != -1) ? (data->expected_col == error_desc.colno) : true;
if (data->is_fuzzy) {
++data->nsuccess;
printf("\tSUCCESS\n");
return;
}
if (same_error && same_row && same_col) {
++data->nsuccess;
printf("\tSUCCESS\n");
} else {
++data->nfailure;
printf("\tFAILURE\n");
}
}
static const char *unittest_read (const char *path, size_t *size, uint32_t *fileid, void *xdata, bool *is_static) {
(void) fileid, (void) xdata;
if (is_static) *is_static = false;
if (file_exists(path)) return file_read(path, size);
// this unittest is able to resolve path only next to main test folder (not in nested folders)
const char *newpath = file_buildpath(path, test_folder_path);
if (!newpath) return NULL;
const char *buffer = file_read(newpath, size);
mem_free(newpath);
return buffer;
}
static void unittest_scan (const char *folder_path, unittest_data *data) {
DIRREF dir = directory_init(folder_path);
if (!dir) return;
#ifdef WIN32
char outbuffer[MAX_PATH];
#else
char *outbuffer = NULL;
#endif
const char *target_file;
while ((target_file = directory_read(dir, outbuffer))) {
// if file is a folder then start recursion
const char *full_path = file_buildpath(target_file, folder_path);
if (is_directory(full_path)) {
// skip disabled folder
if (strcmp(target_file, "disabled") == 0) continue;
unittest_scan(full_path, data);
continue;
}
// test only files with a .gravity extension
if (strstr(full_path, ".gravity") == NULL) continue;
data->is_fuzzy = (strstr(full_path, "/fuzzy/") != NULL);
// load source code
size_t size = 0;
const char *source_code = file_read(full_path, &size);
assert(source_code);
// start unit test
unittest_init(target_file, data);
// compile and run source code
printf("\n%d\tTest file: %s\n", data->ncount, target_file);
printf("\tTest path: %s\n", full_path);
mem_free(full_path);
// initialize compiler and delegates
gravity_delegate_t delegate = {
.xdata = (void *)data,
.error_callback = unittest_error,
.unittest_callback = unittest_callback,
.loadfile_callback = unittest_read
};
gravity_compiler_t *compiler = gravity_compiler_create(&delegate);
gravity_closure_t *closure = gravity_compiler_run(compiler, source_code, size, 0, false, false);
gravity_vm *vm = gravity_vm_new(&delegate);
gravity_compiler_transfer(compiler, vm);
gravity_compiler_free(compiler);
if (closure) {
if (gravity_vm_runmain(vm, closure)) {
data->processed = true;
gravity_value_t result = gravity_vm_result(vm);
if (data->is_fuzzy || gravity_value_equals(result, data->expected_value)) {
++data->nsuccess;
printf("\tSUCCESS\n");
} else {
++data->nfailure;
printf("\tFAILURE\n");
}
gravity_value_free(NULL, data->expected_value);
}
}
gravity_vm_free(vm);
// case for empty files or simple declarations test
if (!data->processed) {
++data->nsuccess;
printf("\tSUCCESS\n");
}
// cleanup unitest
unittest_cleanup(target_file, data);
}
}
// MARK: - General -
static void print_version (void) {
printf("Gravity version %s (%s)\n", GRAVITY_VERSION, GRAVITY_BUILD_DATE);
}
static void print_help (void) {
printf("Usage: gravity [options] [arguments...]\n");
printf("\n");
printf("To start the REPL (not yet supported):\n");
printf(" gravity\n");
printf("\n");
printf("To compile and execute file:\n");
printf(" gravity example.gravity\n");
printf("\n");
printf("Available options are:\n");
printf(" --version show version information and exit\n");
printf(" --help show command line usage and exit\n");
printf(" -c input_file compile input_file\n");
printf(" -o output_file specify output file name (default to gravity.json)\n");
printf(" -x input_file execute input_file (JSON format expected)\n");
printf(" -i source_code compile and execute source_code string\n");
printf(" -q don't print result and execution time\n");
printf(" -t folder run unit tests from folder\n");
}
static op_type parse_args (int argc, const char* argv[]) {
if (argc == 1) return OP_REPL;
if (argc == 2 && strcmp(argv[1], "--version") == 0) {
print_version();
exit(0);
}
if (argc == 2 && strcmp(argv[1], "--help") == 0) {
print_help();
exit(0);
}
op_type type = OP_RUN;
for (int i=1; i<argc; ++i) {
if ((strcmp(argv[i], "-c") == 0) && (i+1 < argc)) {
input_file = argv[++i];
type = OP_COMPILE;
}
else if ((strcmp(argv[i], "-o") == 0) && (i+1 < argc)) {
output_file = argv[++i];
}
else if ((strcmp(argv[i], "-x") == 0) && (i+1 < argc)) {
input_file = argv[++i];
type = OP_RUN;
}
else if ((strcmp(argv[i], "-i") == 0) && (i+1 < argc)) {
input_file = argv[++i];
type = OP_INLINE_RUN;
}
else if (strcmp(argv[i], "-q") == 0) {
quiet_flag = true;
}
else if ((strcmp(argv[i], "-t") == 0) && (i+1 < argc)) {
unittest_folder = argv[++i];
type = OP_UNITTEST;
}
else {
input_file = argv[i];
type = OP_COMPILE_RUN;
}
}
return type;
}
// MARK: - Special Modes -
static void gravity_repl (void) {
printf("REPL not yet implemented.\n");
exit(0);
/*
// setup compiler/VM delegate
gravity_delegate_t delegate = {
.error_callback = report_error,
};
gravity_compiler_t *compiler = gravity_compiler_create(&delegate);
gravity_vm *vm = gravity_vm_new(&delegate);
char *line = NULL;
int length = 0;
printf("Welcome to Gravity v%s\n", GRAVITY_VERSION);
while((line = readline("> ", &length)) != NULL) {
// to be implemented
// gravity_compiler_eval(compiler, vm, line, length);
free(line);
}
gravity_compiler_free(compiler);
gravity_vm_free(vm);
*/
}
static void gravity_unittest (void) {
unittest_data data = {
.ncount = 0,
.nsuccess = 0,
.nfailure = 0
};
if (unittest_folder == NULL) {
printf("Usage: gravity -t /path/to/unitest/\n");
exit(-1);
}
// print console header
printf("==============================================\n");
printf("Gravity Unit Test Mode\n");
printf("Gravity version %s\n", GRAVITY_VERSION);
printf("Build date: %s\n", GRAVITY_BUILD_DATE);
printf("==============================================\n");
mem_init();
nanotime_t tstart = nanotime();
test_folder_path = unittest_folder;
unittest_scan(unittest_folder, &data);
nanotime_t tend = nanotime();
double result = ((double)((data.nsuccess * 100)) / (double)data.ncount);
printf("\n\n");
printf("==============================================\n");
printf("Total Tests: %d\n", data.ncount);
printf("Total Successes: %d\n", data.nsuccess);
printf("Total Failures: %d\n", data.nfailure);
printf("Result: %.2f %%\n", result);
printf("Time: %.4f ms\n", millitime(tstart, tend));
printf("==============================================\n");
printf("\n");
// If we have 1 or more failures, return an error.
if (data.nfailure != 0) {
exit(1);
}
exit(0);
}
// MARK: -
int main (int argc, const char* argv[]) {
// parse arguments and return operation type
op_type type = parse_args(argc, argv);
// special repl case
if (type == OP_REPL) gravity_repl();
// special unit test mode
if (type == OP_UNITTEST) gravity_unittest();
// initialize memory debugger (if activated)
mem_init();
// closure to execute/serialize
gravity_closure_t *closure = NULL;
// optional compiler
gravity_compiler_t *compiler = NULL;
// setup compiler/VM delegate
gravity_delegate_t delegate = {
.error_callback = report_error,
.loadfile_callback = load_file
};
// create VM
gravity_vm *vm = gravity_vm_new(&delegate);
// pass argc and argv to the ENV class
gravity_env_register_args(vm, argc, argv);
// check if input file is source code that needs to be compiled
if ((type == OP_COMPILE) || (type == OP_COMPILE_RUN) || (type == OP_INLINE_RUN)) {
// load source code
size_t size = 0;
const char *source_code = NULL;
if (type == OP_INLINE_RUN) {
source_code = input_file;
size = strlen(input_file);
} else {
source_code = file_read(input_file, &size);
}
// sanity check
if (!source_code || !size) {
printf("Error loading %s %s\n", (type == OP_INLINE_RUN) ? "source" : "file", input_file);
goto cleanup;
}
// create closure to execute inline code
if (type == OP_INLINE_RUN) {
char *buffer = mem_alloc(NULL, size+1024);
assert(buffer);
size = snprintf(buffer, size+1024, "func main() {%s};", input_file);
source_code = buffer;
}
// create compiler
compiler = gravity_compiler_create(&delegate);
// compile source code into a closure
closure = gravity_compiler_run(compiler, source_code, size, 0, false, true);
if (!closure) goto cleanup;
// check if closure needs to be serialized
if (type == OP_COMPILE) {
bool result = gravity_compiler_serialize_infile(compiler, closure, output_file);
if (!result) printf("Error serializing file %s\n", output_file);
goto cleanup;
}
// op is OP_COMPILE_RUN so transfer memory from compiler to VM
gravity_compiler_transfer(compiler, vm);
} else if (type == OP_RUN) {
// unserialize file
closure = gravity_vm_loadfile(vm, input_file);
if (!closure) {
printf("Error while loading compile file %s\n", input_file);
goto cleanup;
}
}
// sanity check
assert(closure);
if (gravity_vm_runmain(vm, closure)) {
gravity_value_t result = gravity_vm_result(vm);
double t = gravity_vm_time(vm);
char buffer[512];
gravity_value_dump(vm, result, buffer, sizeof(buffer));
if (!quiet_flag) {
printf("RESULT: %s (in %.4f ms)\n\n", buffer, t);
}
}
cleanup:
if (compiler) gravity_compiler_free(compiler);
if (vm) gravity_vm_free(vm);
gravity_core_free();
#if GRAVITY_MEMORY_DEBUG
size_t current_memory = mem_leaks();
if (current_memory != 0) {
printf("--> VM leaks: %zu bytes\n", current_memory);
mem_stat();
} else {
printf("\tNo VM leaks found!\n");
}
#endif
return 0;
}