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View Code? Open in Web Editor NEWA C language parser built from the scratch, without using compiler generator.
A C language parser built from the scratch, without using compiler generator.
There are dozens of different errors in the code. I tried to solve them one by one, but there are really many of them. Here are some of them:
[max@workstation src]$ make
gcc test_lex.o stack.o token.o error.o ast.o hashtable.o -o ./bin/test_lex -O0 -g -Wall -Wextra -Werror -Wno-unused-parameter -Wno-unused-variable -I/home/max/Projects/Git/CFront/src
gcc ./test/test_parse.c -c -o /home/max/Projects/Git/CFront/src/test_parse.o -O0 -g -Wall -Wextra -Werror -Wno-unused-parameter -Wno-unused-variable -I/home/max/Projects/Git/CFront/src
gcc parse_exp.c -c -o parse_exp.o -O0 -g -Wall -Wextra -Werror -Wno-unused-parameter -Wno-unused-variable
gcc parse_decl.c -c -o parse_decl.o -O0 -g -Wall -Wextra -Werror -Wno-unused-parameter -Wno-unused-variable
parse_decl.c: In function ‘parse_typespec’:
parse_decl.c:59:20: error: this statement may fall through [-Werror=implicit-fallthrough=]
59 | case T_SIGNED: token_free(token_get_next(cxt->token_cxt)); // Fall through again
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
parse_decl.c:60:5: note: here
60 | case T_CHAR: case T_SHORT: case T_INT: case T_LONG: { // Note: Do not get_next_token() on these types
| ^~~~
cc1: all warnings being treated as errors
make: *** [Makefile:68: parse_decl.o] Error 1
[max@workstation src]$ make
gcc parse_decl.c -c -o parse_decl.o -O0 -g -Wall -Wextra -Werror -Wno-unused-parameter -Wno-unused-variable
parse_decl.c: In function ‘parse_typespec’:
parse_decl.c:59:20: error: this statement may fall through [-Werror=implicit-fallthrough=]
59 | case T_SIGNED: token_free(token_get_next(cxt->token_cxt)); // Fall through again
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
parse_decl.c:60:5: note: here
60 | case T_CHAR: case T_SHORT: case T_INT: case T_LONG: { // Note: Do not get_next_token() on these types
| ^~~~
cc1: all warnings being treated as errors
make: *** [Makefile:68: parse_decl.o] Error 1
[max@workstation src]$ make
gcc parse_decl.c -c -o parse_decl.o -O0 -g -Wall -Wextra -Werror -Wno-unused-parameter -Wno-unused-variable
parse_decl.c: In function ‘parse_typespec’:
parse_decl.c:59:5: error: ‘breka’ undeclared (first use in this function)
59 | breka;
| ^~~~~
parse_decl.c:59:5: note: each undeclared identifier is reported only once for each function it appears in
parse_decl.c:58:28: error: this statement may fall through [-Werror=implicit-fallthrough=]
58 | case T_UNSIGNED: usign = 1; // Fall through
| ~~~~~~^~~
parse_decl.c:60:5: note: here
60 | case T_SIGNED: token_free(token_get_next(cxt->token_cxt)); // Fall through again
| ^~~~
cc1: all warnings being treated as errors
make: *** [Makefile:68: parse_decl.o] Error 1
[max@workstation src]$ make
gcc parse_decl.c -c -o parse_decl.o -O0 -g -Wall -Wextra -Werror -Wno-unused-parameter -Wno-unused-variable
parse_decl.c: In function ‘parse_typespec’:
parse_decl.c:59:5: error: ‘breka’ undeclared (first use in this function)
59 | breka;
| ^~~~~
parse_decl.c:59:5: note: each undeclared identifier is reported only once for each function it appears in
parse_decl.c:58:28: error: this statement may fall through [-Werror=implicit-fallthrough=]
58 | case T_UNSIGNED: usign = 1; // Fall through
| ~~~~~~^~~
parse_decl.c:60:5: note: here
60 | case T_SIGNED: token_free(token_get_next(cxt->token_cxt)); // Fall through again
| ^~~~
cc1: all warnings being treated as errors
make: *** [Makefile:68: parse_decl.o] Error 1
[max@workstation src]$
[max@workstation src]$ make
gcc parse_decl.c -c -o parse_decl.o -O0 -g -Wall -Wextra -Werror -Wno-unused-parameter -Wno-unused-variable
gcc parse_comp.c -c -o parse_comp.o -O0 -g -Wall -Wextra -Werror -Wno-unused-parameter -Wno-unused-variable
gcc parse_stmt.c -c -o parse_stmt.o -O0 -g -Wall -Wextra -Werror -Wno-unused-parameter -Wno-unused-variable
gcc parse.c -c -o parse.o -O0 -g -Wall -Wextra -Werror -Wno-unused-parameter -Wno-unused-variable
gcc eval.c -c -o eval.o -O0 -g -Wall -Wextra -Werror -Wno-unused-parameter -Wno-unused-variable
gcc type.c -c -o type.o -O0 -g -Wall -Wextra -Werror -Wno-unused-parameter -Wno-unused-variable
type.c: In function ‘type_int_promo’:
type.c:964:7: error: this ‘if’ clause does not guard... [-Werror=misleading-indentation]
964 | if(need_copy) type = type_init_from(cxt, type, type->offset); break;
| ^~
type.c:964:69: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the ‘if’
964 | if(need_copy) type = type_init_from(cxt, type, type->offset); break;
| ^~~~~
type.c: In function ‘type_typeof’:
type.c:1104:11: error: this statement may fall through [-Werror=implicit-fallthrough=]
1104 | lhs = lhs->next;
| ~~~~^~~~~~~~~~~
type.c:1106:5: note: here
1106 | case EXP_DOT: {
| ^~~~
cc1: all warnings being treated as errors
make: *** [Makefile:104: type.o] Error 1
[max@workstation src]$ make
gcc type.c -c -o type.o -O0 -g -Wall -Wextra -Werror -Wno-unused-parameter -Wno-unused-variable
type.c: In function ‘type_int_promo’:
type.c:964:7: error: this ‘if’ clause does not guard... [-Werror=misleading-indentation]
964 | if(need_copy) type = type_init_from(cxt, type, type->offset); break;
| ^~
type.c:964:69: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the ‘if’
964 | if(need_copy) type = type_init_from(cxt, type, type->offset); break;
| ^~~~~
cc1: all warnings being treated as errors
make: *** [Makefile:104: type.o] Error 1
[max@workstation src]$ make
gcc type.c -c -o type.o -O0 -g -Wall -Wextra -Werror -Wno-unused-parameter -Wno-unused-variable
gcc list.c -c -o list.o -O0 -g -Wall -Wextra -Werror -Wno-unused-parameter -Wno-unused-variable
gcc bintree.c -c -o bintree.o -O0 -g -Wall -Wextra -Werror -Wno-unused-parameter -Wno-unused-variable
gcc str.c -c -o str.o -O0 -g -Wall -Wextra -Werror -Wno-unused-parameter -Wno-unused-variable
gcc test_parse.o parse_exp.o stack.o token.o error.o ast.o hashtable.o parse_decl.o parse_comp.o parse_stmt.o parse.o eval.o type.o list.o bintree.o str.o -o ./bin/test_parse -O0 -g -Wall -Wextra -Werror -Wno-unused-parameter -Wno-unused-variable -I/home/max/Projects/Git/CFront/src
/usr/bin/ld: parse_comp.o:/home/max/Projects/Git/CFront/src/eval.h:19: multiple definition of `eval_int_masks'; parse_decl.o:/home/max/Projects/Git/CFront/src/eval.h:19: first defined here
/usr/bin/ld: eval.o:/home/max/Projects/Git/CFront/src/eval.h:19: multiple definition of `eval_int_masks'; parse_decl.o:/home/max/Projects/Git/CFront/src/eval.h:19: first defined here
/usr/bin/ld: type.o:/home/max/Projects/Git/CFront/src/eval.h:19: multiple definition of `eval_int_masks'; parse_decl.o:/home/max/Projects/Git/CFront/src/eval.h:19: first defined here
collect2: error: ld returned 1 exit status
make: *** [Makefile:35: bin/test_parse] Error 1
[max@workstation src]$ make
gcc test_parse.o parse_exp.o stack.o token.o error.o ast.o hashtable.o parse_decl.o parse_comp.o parse_stmt.o parse.o eval.o type.o list.o bintree.o str.o -o ./bin/test_parse -O0 -g -Wall -Wextra -Werror -Wno-unused-parameter -Wno-unused-variable -I/home/max/Projects/Git/CFront/src
/usr/bin/ld: parse_comp.o:/home/max/Projects/Git/CFront/src/eval.h:19: multiple definition of `eval_int_masks'; parse_decl.o:/home/max/Projects/Git/CFront/src/eval.h:19: first defined here
/usr/bin/ld: eval.o:/home/max/Projects/Git/CFront/src/eval.h:19: multiple definition of `eval_int_masks'; parse_decl.o:/home/max/Projects/Git/CFront/src/eval.h:19: first defined here
/usr/bin/ld: type.o:/home/max/Projects/Git/CFront/src/eval.h:19: multiple definition of `eval_int_masks'; parse_decl.o:/home/max/Projects/Git/CFront/src/eval.h:19: first defined here
collect2: error: ld returned 1 exit status
make: *** [Makefile:35: bin/test_parse] Error 1
[max@workstation src]$ make
gcc test_parse.o parse_exp.o stack.o token.o error.o ast.o hashtable.o parse_decl.o parse_comp.o parse_stmt.o parse.o eval.o type.o list.o bintree.o str.o -o ./bin/test_parse -O0 -g -Wall -Wextra -Werror -Wno-unused-parameter -Wno-unused-variable -I/home/max/Projects/Git/CFront/src
/usr/bin/ld: parse_comp.o:/home/max/Projects/Git/CFront/src/eval.h:19: multiple definition of `eval_int_masks'; parse_decl.o:/home/max/Projects/Git/CFront/src/eval.h:19: first defined here
/usr/bin/ld: eval.o:/home/max/Projects/Git/CFront/src/eval.h:19: multiple definition of `eval_int_masks'; parse_decl.o:/home/max/Projects/Git/CFront/src/eval.h:19: first defined here
/usr/bin/ld: type.o:/home/max/Projects/Git/CFront/src/eval.h:19: multiple definition of `eval_int_masks'; parse_decl.o:/home/max/Projects/Git/CFront/src/eval.h:19: first defined here
collect2: error: ld returned 1 exit status
make: *** [Makefile:35: bin/test_parse] Error 1
[max@workstation src]$ make
gcc test_parse.o parse_exp.o stack.o token.o error.o ast.o hashtable.o parse_decl.o parse_comp.o parse_stmt.o parse.o eval.o type.o list.o bintree.o str.o -o ./bin/test_parse -O0 -g -Wall -Wextra -Werror -Wno-unused-parameter -Wno-unused-variable -I/home/max/Projects/Git/CFront/src
/usr/bin/ld: parse_comp.o:/home/max/Projects/Git/CFront/src/eval.h:19: multiple definition of `eval_int_masks'; parse_decl.o:/home/max/Projects/Git/CFront/src/eval.h:19: first defined here
/usr/bin/ld: eval.o:/home/max/Projects/Git/CFront/src/eval.h:19: multiple definition of `eval_int_masks'; parse_decl.o:/home/max/Projects/Git/CFront/src/eval.h:19: first defined here
/usr/bin/ld: type.o:/home/max/Projects/Git/CFront/src/eval.h:19: multiple definition of `eval_int_masks'; parse_decl.o:/home/max/Projects/Git/CFront/src/eval.h:19: first defined here
collect2: error: ld returned 1 exit status
make: *** [Makefile:35: bin/test_parse] Error 1
[max@workstation src]$ make
gcc test_parse.o parse_exp.o stack.o token.o error.o ast.o hashtable.o parse_decl.o parse_comp.o parse_stmt.o parse.o eval.o type.o list.o bintree.o str.o -o ./bin/test_parse -O0 -g -Wall -Wextra -Werror -Wno-unused-parameter -Wno-unused-variable -I/home/max/Projects/Git/CFront/src
/usr/bin/ld: parse_comp.o:/home/max/Projects/Git/CFront/src/eval.h:19: multiple definition of `eval_int_masks'; parse_decl.o:/home/max/Projects/Git/CFront/src/eval.h:19: first defined here
/usr/bin/ld: eval.o:/home/max/Projects/Git/CFront/src/eval.h:19: multiple definition of `eval_int_masks'; parse_decl.o:/home/max/Projects/Git/CFront/src/eval.h:19: first defined here
/usr/bin/ld: type.o:/home/max/Projects/Git/CFront/src/eval.h:19: multiple definition of `eval_int_masks'; parse_decl.o:/home/max/Projects/Git/CFront/src/eval.h:19: first defined here
collect2: error: ld returned 1 exit status
make: *** [Makefile:35: bin/test_parse] Error 1
[max@workstation src]$ make
gcc test_parse.o parse_exp.o stack.o token.o error.o ast.o hashtable.o parse_decl.o parse_comp.o parse_stmt.o parse.o eval.o type.o list.o bintree.o str.o -o ./bin/test_parse -O0 -g -Wall -Wextra -Werror -Wno-unused-parameter -Wno-unused-variable -I/home/max/Projects/Git/CFront/src
/usr/bin/ld: parse_comp.o:/home/max/Projects/Git/CFront/src/eval.h:19: multiple definition of `eval_int_masks'; parse_decl.o:/home/max/Projects/Git/CFront/src/eval.h:19: first defined here
/usr/bin/ld: eval.o:/home/max/Projects/Git/CFront/src/eval.h:19: multiple definition of `eval_int_masks'; parse_decl.o:/home/max/Projects/Git/CFront/src/eval.h:19: first defined here
/usr/bin/ld: type.o:/home/max/Projects/Git/CFront/src/eval.h:19: multiple definition of `eval_int_masks'; parse_decl.o:/home/max/Projects/Git/CFront/src/eval.h:19: first defined here
collect2: error: ld returned 1 exit status
make: *** [Makefile:35: bin/test_parse] Error 1
[max@workstation src]$ make
gcc test_parse.o parse_exp.o stack.o token.o error.o ast.o hashtable.o parse_decl.o parse_comp.o parse_stmt.o parse.o eval.o type.o list.o bintree.o str.o -o ./bin/test_parse -O0 -g -Wall -Wextra -Werror -Wno-unused-parameter -Wno-unused-variable -I/home/max/Projects/Git/CFront/src
/usr/bin/ld: parse_comp.o:/home/max/Projects/Git/CFront/src/eval.h:19: multiple definition of `eval_int_masks'; parse_decl.o:/home/max/Projects/Git/CFront/src/eval.h:19: first defined here
/usr/bin/ld: eval.o:/home/max/Projects/Git/CFront/src/eval.h:19: multiple definition of `eval_int_masks'; parse_decl.o:/home/max/Projects/Git/CFront/src/eval.h:19: first defined here
/usr/bin/ld: type.o:/home/max/Projects/Git/CFront/src/eval.h:19: multiple definition of `eval_int_masks'; parse_decl.o:/home/max/Projects/Git/CFront/src/eval.h:19: first defined here
collect2: error: ld returned 1 exit status
make: *** [Makefile:35: bin/test_parse] Error 1
[max@workstation src]$ make
gcc test_parse.o parse_exp.o stack.o token.o error.o ast.o hashtable.o parse_decl.o parse_comp.o parse_stmt.o parse.o eval.o type.o list.o bintree.o str.o -o ./bin/test_parse -O0 -g -Wall -Wextra -Werror -Wno-unused-parameter -Wno-unused-variable -I/home/max/Projects/Git/CFront/src
/usr/bin/ld: parse_comp.o:/home/max/Projects/Git/CFront/src/eval.h:19: multiple definition of `eval_int_masks'; parse_decl.o:/home/max/Projects/Git/CFront/src/eval.h:19: first defined here
/usr/bin/ld: eval.o:/home/max/Projects/Git/CFront/src/eval.h:19: multiple definition of `eval_int_masks'; parse_decl.o:/home/max/Projects/Git/CFront/src/eval.h:19: first defined here
/usr/bin/ld: type.o:/home/max/Projects/Git/CFront/src/eval.h:19: multiple definition of `eval_int_masks'; parse_decl.o:/home/max/Projects/Git/CFront/src/eval.h:19: first defined here
collect2: error: ld returned 1 exit status
make: *** [Makefile:35: bin/test_parse] Error 1
[max@workstation src]$ make
gcc eval.c -c -o eval.o -O0 -g -Wall -Wextra -Werror -Wno-unused-parameter -Wno-unused-variable
gcc type.c -c -o type.o -O0 -g -Wall -Wextra -Werror -Wno-unused-parameter -Wno-unused-variable
gcc test_parse.o parse_exp.o stack.o token.o error.o ast.o hashtable.o parse_decl.o parse_comp.o parse_stmt.o parse.o eval.o type.o list.o bintree.o str.o -o ./bin/test_parse -O0 -g -Wall -Wextra -Werror -Wno-unused-parameter -Wno-unused-variable -I/home/max/Projects/Git/CFront/src
/usr/bin/ld: parse_comp.o:/home/max/Projects/Git/CFront/src/eval.h:19: multiple definition of `eval_int_masks'; parse_decl.o:/home/max/Projects/Git/CFront/src/eval.h:19: first defined here
/usr/bin/ld: eval.o:/home/max/Projects/Git/CFront/src/eval.c:7: multiple definition of `eval_int_masks'; parse_decl.o:/home/max/Projects/Git/CFront/src/eval.h:19: first defined here
collect2: error: ld returned 1 exit status
make: *** [Makefile:35: bin/test_parse] Error 1
[max@workstation src]$ make
gcc eval.c -c -o eval.o -O0 -g -Wall -Wextra -Werror -Wno-unused-parameter -Wno-unused-variable
eval.c: In function ‘eval_const_get_mask’:
eval.c:17:22: error: ‘eval_int_masks’ undeclared (first use in this function)
17 | uint64_t op_mask = eval_int_masks[size];
| ^~~~~~~~~~~~~~
eval.c:17:22: note: each undeclared identifier is reported only once for each function it appears in
eval.c: In function ‘eval_const_get_sign_mask’:
eval.c:23:24: error: ‘eval_int_masks’ undeclared (first use in this function)
23 | uint64_t sign_mask = eval_int_masks[size];
| ^~~~~~~~~~~~~~
eval.c:22:39: error: parameter ‘size’ set but not used [-Werror=unused-but-set-parameter]
22 | uint64_t eval_const_get_sign_mask(int size) {
| ~~~~^~~~
cc1: all warnings being treated as errors
make: *** [Makefile:107: eval.o] Error 1
[max@workstation src]$ make
gcc eval.c -c -o eval.o -O0 -g -Wall -Wextra -Werror -Wno-unused-parameter -Wno-unused-variable
gcc type.c -c -o type.o -O0 -g -Wall -Wextra -Werror -Wno-unused-parameter -Wno-unused-variable
gcc test_parse.o parse_exp.o stack.o token.o error.o ast.o hashtable.o parse_decl.o parse_comp.o parse_stmt.o parse.o eval.o type.o list.o bintree.o str.o -o ./bin/test_parse -O0 -g -Wall -Wextra -Werror -Wno-unused-parameter -Wno-unused-variable -I/home/max/Projects/Git/CFront/src
/usr/bin/ld: parse_comp.o:/home/max/Projects/Git/CFront/src/eval.h:19: multiple definition of `eval_int_masks'; parse_decl.o:/home/max/Projects/Git/CFront/src/eval.h:19: first defined here
/usr/bin/ld: eval.o:/home/max/Projects/Git/CFront/src/eval.c:7: multiple definition of `eval_int_masks'; parse_decl.o:/home/max/Projects/Git/CFront/src/eval.h:19: first defined here
collect2: error: ld returned 1 exit status
make: *** [Makefile:35: bin/test_parse] Error 1
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