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Merge pull request #9 from aodinokov/logging_attempt_2
Logging attempt 2
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,132 @@ | ||
| #include <stdio.h> | ||
| #include <stdarg.h> | ||
| #include <stdlib.h> | ||
| #include <string.h> | ||
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| #include "print_args.h" | ||
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| void vprint_args(metac_tag_map_t * p_tag_map, metac_flag_t calling, metac_entry_t *p_entry, metac_value_t * p_res, va_list args) { | ||
| if (p_entry == NULL || metac_entry_has_paremeters(p_entry) == 0) { | ||
| return; | ||
| } | ||
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| if (calling == 1) { | ||
| printf("calling "); | ||
| } | ||
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| printf("%s(", metac_entry_name(p_entry)); | ||
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| char buf[16]; | ||
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| for (int i = 0; i < metac_entry_paremeters_count(p_entry); ++i) { | ||
| if (i > 0) { | ||
| printf(", "); | ||
| } | ||
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| metac_entry_t * p_param_entry = metac_entry_by_paremeter_id(p_entry, i); | ||
| if (metac_entry_is_parameter(p_param_entry) == 0) { | ||
| // something is wrong | ||
| break; | ||
| } | ||
| if (metac_entry_is_unspecified_parameter(p_param_entry) != 0) { | ||
| // we don't support printing va_args... there is no generic way | ||
| printf("..."); | ||
| break; | ||
| } | ||
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| metac_name_t param_name = metac_entry_name(p_param_entry); | ||
| metac_entry_t * p_param_type_entry = metac_entry_parameter_entry(p_param_entry); | ||
| if (param_name == NULL || p_param_type_entry == NULL) { | ||
| // something is wrong | ||
| break; | ||
| } | ||
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| metac_size_t param_byte_sz = 0; | ||
| if (metac_entry_byte_size(p_param_type_entry, ¶m_byte_sz) != 0) { | ||
| // something is wrong | ||
| break; | ||
| } | ||
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| int handled = 0; | ||
| #define _handle_sz_(_sz_) \ | ||
| do { \ | ||
| if (param_byte_sz == _sz_) { \ | ||
| char *x = va_arg(args, char[_sz_]); \ | ||
| if (x == NULL) { break; } \ | ||
| memcpy(buf, x, param_byte_sz); \ | ||
| handled = 1; \ | ||
| } \ | ||
| } while(0) | ||
| _handle_sz_(1); | ||
| _handle_sz_(2); | ||
| _handle_sz_(3); | ||
| _handle_sz_(4); | ||
| _handle_sz_(5); | ||
| _handle_sz_(6); | ||
| _handle_sz_(7); | ||
| _handle_sz_(8); | ||
| _handle_sz_(9); | ||
| _handle_sz_(10); | ||
| _handle_sz_(11); | ||
| _handle_sz_(12); | ||
| _handle_sz_(13); | ||
| _handle_sz_(14); | ||
| _handle_sz_(15); | ||
| _handle_sz_(16); | ||
| #undef _handle_sz_ | ||
| if (handled == 0) { | ||
| break; | ||
| } | ||
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| metac_value_t * p_val = metac_new_value(p_param_type_entry, &buf[0]); | ||
| if (p_val == NULL) { | ||
| break; | ||
| } | ||
| char * v = metac_value_string_ex(p_val, METAC_WMODE_deep, p_tag_map); | ||
| if (v == NULL) { | ||
| metac_value_delete(p_val); | ||
| break; | ||
| } | ||
| char * arg_decl = metac_entry_cdecl(p_param_type_entry); | ||
| if (arg_decl == NULL) { | ||
| free(v); | ||
| metac_value_delete(p_val); | ||
| break; | ||
| } | ||
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| printf(arg_decl, param_name); | ||
| printf(" = %s", v); | ||
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| free(arg_decl); | ||
| free(v); | ||
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| metac_value_delete(p_val); | ||
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| } | ||
| printf(")"); | ||
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| if (calling == 0) { | ||
| printf(" returned"); | ||
| if (p_res != NULL) { | ||
| char * v = metac_value_string_ex(p_res, METAC_WMODE_deep, p_tag_map); | ||
| if (v == NULL) { | ||
| return; | ||
| } | ||
| printf(" %s", v); | ||
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| free(v); | ||
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| metac_value_delete(p_res); | ||
| } | ||
| } | ||
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| printf("\n"); | ||
| } | ||
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| void print_args(metac_tag_map_t * p_tag_map, metac_flag_t calling, metac_entry_t *p_entry, metac_value_t * p_res, ...) { | ||
| va_list args; | ||
| va_start(args, p_res); | ||
| vprint_args(p_tag_map, calling, p_entry, p_res, args); | ||
| va_end(args); | ||
| return; | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,22 @@ | ||
| #ifndef PRINT_ARGS_H_ | ||
| #define PRINT_ARGS_H_ | ||
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| #include "metac/reflect.h" | ||
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| void vprint_args(metac_tag_map_t * p_tag_map, metac_flag_t calling, metac_entry_t *p_entry, metac_value_t * p_res, va_list args); | ||
| void print_args(metac_tag_map_t * p_tag_map, metac_flag_t calling, metac_entry_t *p_entry, metac_value_t * p_res, ...); | ||
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| #define METAC_WRAP_FN_NORES(_fn_, _args_...) { \ | ||
| print_args(NULL, 1, METAC_GSYM_LINK_ENTRY(_fn_), NULL, _args_); \ | ||
| _fn_(_args_); \ | ||
| print_args(NULL, 0, METAC_GSYM_LINK_ENTRY(_fn_), NULL, _args_); \ | ||
| } | ||
| #define METAC_WRAP_FN_RES(_type_, _fn_, _args_...) ({ \ | ||
| print_args(NULL, 1, METAC_GSYM_LINK_ENTRY(_fn_), NULL, _args_); \ | ||
| WITH_METAC_DECLLOC(loc, _type_ res = _fn_(_args_)); \ | ||
| print_args(NULL, 0, METAC_GSYM_LINK_ENTRY(_fn_), METAC_VALUE_FROM_DECLLOC(loc, res), _args_); \ | ||
| res; \ | ||
| }) | ||
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| #endif |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,14 @@ | ||
| #include "metac/test.h" | ||
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| #include "print_args.c" | ||
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| int test_function2_with_args(int *a, short b){ | ||
| return *a + b + 999; | ||
| } | ||
| METAC_GSYM_LINK(test_function2_with_args); | ||
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| METAC_START_TEST(sanity){ | ||
| // this doesn't pass on Windows yet | ||
| // int x = 689; | ||
| // METAC_WRAP_FN_RES(int, test_function2_with_args, &x, 2); | ||
| }END_TEST |