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main.c
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main.c
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#include "shucc.h"
/* global variables */
char* user_input; // input program
Token* token; // current token
Map* code; // top-level array of statements
/**
* Print out each token str
* @param argv a string array of arguments
*/
void check_tokenization(char** argv) {
token = tokenize(argv[1]);
while (token->kind != TK_EOF) {
fprintf(stderr, "%s ", token->str);
token = token->next;
}
fprintf(stderr, "\n");
// now token is the last one, need to update token
token = tokenize(argv[1]);
}
/**
* main function
* @param argc the number of runtime arguments
* @param argv a string array of arguments
*/
int main(int argc, char** argv) {
if (argc != 2) {
fprintf(stderr, "invalid input\n");
return 1;
}
int debug = 0;
if (debug) {
token = tokenize(argv[1]);
check_tokenization(argv);
fprintf(stderr, "tokenize OK\n");
code = program();
fprintf(stderr, "AST OK\n");
draw_ast();
fprintf(stderr, "draw AST OK\n");
sema();
fprintf(stderr, "sema OK");
gen_x86_64();
} else {
token = tokenize(argv[1]); // tokenize the given string and initialize token by the first one
code = program(); // generate AST from input
sema();
gen_x86_64();
}
return 0;
}