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minic.c
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minic.c
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#include <stdlib.h>
#include <string.h>
#include "defs.h"
#include "symtab.h"
#include "minic.h"
#include "minic.tab.h"
extern int yylineno;
int yyparse(void);
typedef struct yy_buffer_state * YY_BUFFER_STATE;
YY_BUFFER_STATE yy_scan_string(const char *str);
void yy_delete_buffer(YY_BUFFER_STATE buffer);
char char_buffer[CHAR_BUFFER_LENGTH];
int severity = ERROR;
cJSON *_diagnostics = NULL;
int yyerror(const char *text) {
if(_diagnostics == NULL) {
return 0;
}
cJSON *diagnostic = cJSON_CreateObject();
// Range
cJSON *range = cJSON_AddObjectToObject(diagnostic, "range");
cJSON *start_position = cJSON_AddObjectToObject(range, "start");
cJSON_AddNumberToObject(start_position, "line", yylloc.first_line);
cJSON_AddNumberToObject(start_position, "character", 0);
cJSON *end_position = cJSON_AddObjectToObject(range, "end");
cJSON_AddNumberToObject(end_position, "line", yylloc.last_line);
cJSON_AddNumberToObject(end_position, "character", yylloc.last_column);
// Severity
cJSON_AddNumberToObject(diagnostic, "severity", severity);
// Message
cJSON_AddStringToObject(diagnostic, "message", text);
cJSON_AddItemToArray(_diagnostics, diagnostic);
severity = ERROR;
return 0;
}
void parse(cJSON *diagnostics, const char *text) {
_diagnostics = diagnostics;
init_symtab();
yylineno = 0;
YY_BUFFER_STATE buffer = yy_scan_string(text);
yyparse();
yy_delete_buffer(buffer);
_diagnostics = NULL;
}
cJSON* symbol_info(const char *symbol_name, const char *text) {
parse(NULL, text);
int idx = lookup_symbol(symbol_name, VAR|PAR|FUN);
if(idx == -1) {
return NULL;
}
char *display = get_display(idx);
cJSON *info = cJSON_CreateString(display);
free(display);
return info;
}
cJSON* symbol_location(const char *symbol_name, const char *text) {
parse(NULL, text);
int idx = lookup_symbol(symbol_name, VAR|PAR|FUN);
if(idx == -1) {
return NULL;
}
SYMBOL_RANGE sym_range = get_range(idx);
cJSON *range = cJSON_CreateObject();
cJSON *start_position = cJSON_AddObjectToObject(range, "start");
cJSON_AddNumberToObject(start_position, "line", sym_range.first_line);
cJSON_AddNumberToObject(start_position, "character", sym_range.first_column);
cJSON *end_position = cJSON_AddObjectToObject(range, "end");
cJSON_AddNumberToObject(end_position, "line", sym_range.last_line);
cJSON_AddNumberToObject(end_position, "character", sym_range.last_column);
return range;
}
cJSON* symbol_completion(const char *symbol_name_part, const char *text) {
parse(NULL, text);
int indices[SYMBOL_TABLE_LENGTH];
int indices_num = lookup_starts_with(indices, symbol_name_part);
cJSON *results = cJSON_CreateArray();
for(int i = 0; i < indices_num; i++) {
cJSON *item = cJSON_CreateObject();
cJSON_AddStringToObject(item, "label", get_name(indices[i]));
char *detail = get_display(indices[i]);
cJSON_AddStringToObject(item, "detail", detail);
free(detail);
cJSON_AddItemToArray(results, item);
}
return results;
}