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149 Commits

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Author SHA1 Message Date
Rui Ueyama
f814033d04 Add struct 2020-10-15 14:22:16 +09:00
Rui Ueyama
e6307ad374 Add comma operator 
This patch allows writing a comma expression on the left-hand side
of an assignment expression. This is called the "generalized lvalue"
which is a deprecated GCC language extension. I'm implementing it
anyway because it's useful to implement other features.
 2020-10-15 14:22:16 +09:00
Rui Ueyama
1c91d1943a Emit .file and .loc assembler directives 
With these directives, gdb can print out an error location when
a compiled program crashes.
 2020-10-15 14:22:16 +09:00
Rui Ueyama
6647ad9b84 Precompute line number for each token 
No functionality change
 2020-10-15 14:22:16 +09:00
Rui Ueyama
cd832a311e Rewrite tests in shell script in C 2020-10-15 14:22:15 +09:00
Rui Ueyama
ca8b2434c9 Handle block scope 2020-10-08 16:23:53 +09:00
Rui Ueyama
6c0a42926a Add line and block comments 2020-10-08 16:23:53 +09:00
Rui Ueyama
a0388bada4 Add -o and --help options 2020-10-08 16:23:53 +09:00
Rui Ueyama
7b8528f71c Refactor -- no functionality change 2020-10-08 16:23:53 +09:00
Rui Ueyama
d9ea59757e Read code from a file instead of argv[1] 2020-10-08 16:23:49 +09:00
Rui Ueyama
9dae23461e [GNU] Add statement expression 
This is a GNU C extension but will be useful for writing tests.
 2020-10-08 15:43:05 +09:00
Rui Ueyama
c2cc1d3c45 Add \x<hexadecimal-sequence> 2020-10-08 15:43:05 +09:00
Rui Ueyama
699d2b7e3f Add \<octal-sequence> 2020-10-08 15:43:04 +09:00
Rui Ueyama
ad7749f2fa Add \a, \b, \t, \n \v, \f, \r and \e 2020-10-08 15:42:45 +09:00
Rui Ueyama
35a0bcd366 Refactoring: Add a utility function 2020-10-08 14:31:22 +09:00
Rui Ueyama
4cedda2dbe Add string literal 2020-10-07 20:13:26 +09:00
Rui Ueyama
be38d63d1b Add char type 2020-10-07 20:13:26 +09:00
Rui Ueyama
a4d3223a72 Add global variables 2020-10-07 20:13:26 +09:00
Rui Ueyama
0b7663481d Merge Function with Var 
No functional change
 2020-10-07 20:13:26 +09:00
Rui Ueyama
3e55cafef8 Add sizeof 2020-10-07 20:13:26 +09:00
Rui Ueyama
648646bba7 Add [] operator 2020-10-07 20:13:26 +09:00
Rui Ueyama
3ce1b2d067 Add arrays of arrays 2020-10-07 20:13:26 +09:00
Rui Ueyama
8b6395d0f2 Add one dimensional arrays 2020-10-07 20:13:26 +09:00
Rui Ueyama
aacc0cfec2 Support function definition up to 6 parameters 2020-10-07 20:13:26 +09:00
Rui Ueyama
6cb4220f33 Support zero-arity function definition 2020-10-07 20:13:25 +09:00
Rui Ueyama
964b1d2a0e Support function call with up to 6 arguments 2020-10-07 20:13:25 +09:00
Rui Ueyama
30a3992627 Support zero-arity function calls 2020-10-07 20:13:25 +09:00
Rui Ueyama
b4e82cf7ce Add keyword "int" and make variable definition mandatory 2020-10-07 20:13:25 +09:00
Rui Ueyama
a6bc4ab101 Make pointer arithmetic work 2020-10-07 20:13:25 +09:00
Rui Ueyama
863e2b8de2 Add unary & and * 2020-10-07 20:13:25 +09:00
Rui Ueyama
3d8627719b Add a representative node to each Node to improve error messages 2020-10-07 20:13:25 +09:00
Rui Ueyama
5b142b1dcf Add LICENSE and README.md 2020-10-07 20:13:25 +09:00
Rui Ueyama
1f3eb34f63 Add "while" statement 2020-10-07 20:13:25 +09:00
Rui Ueyama
f5d480f139 Add "for" statement 2020-10-07 20:13:25 +09:00
Rui Ueyama
72b841508f Add "if" statement 2020-10-07 20:13:19 +09:00
Rui Ueyama
ff8912c68e Add null statement 2020-10-07 20:13:00 +09:00
Rui Ueyama
18ac283a5d Add { ... } 2020-10-07 20:13:00 +09:00
Rui Ueyama
6cc1c1f064 Add "return" statement 2020-10-07 20:12:57 +09:00
Rui Ueyama
482c26b536 Support multi-letter local variables 2020-10-07 20:12:19 +09:00
Rui Ueyama
1f9f3adf32 Support single-letter local variables 2020-10-07 20:11:48 +09:00
Rui Ueyama
76cae0ad05 Accept multiple statements separated by semicolons 2020-10-07 20:11:22 +09:00
Rui Ueyama
725badfb49 Split main.c into multiple small files 2020-10-07 20:11:16 +09:00
Rui Ueyama
25b4b85b88 Add ==, !=, <= and >= operators 2020-10-07 20:10:14 +09:00
Rui Ueyama
bf9ab52860 Add unary plus and minus 2020-10-07 13:17:05 +09:00
Rui Ueyama
84cfcaf98f Add *, / and () 2020-10-07 13:17:05 +09:00
Rui Ueyama
cc5a6d9781 Improve error message 
Now, chibicc can print out an error message with an error location
like this:

  $ ./chibicc 1+foo
  1+foo
    ^ expected a number
 2020-10-07 13:17:05 +09:00
Rui Ueyama
a1ab0ff26f Add a tokenizer to allow space characters between tokens 2020-10-07 13:17:04 +09:00
Rui Ueyama
bf7081fba7 Add + and - operators 2020-09-13 21:36:37 +09:00
Rui Ueyama
0522e2d77e Compile an integer to an exectuable that exits with the given number 2020-09-13 21:36:28 +09:00