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Added binary literal support

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This commit is contained in:
Steve Tautonico 2023-10-08 00:20:14 -04:00
parent 4d2b3e59a1
commit badc8d44d1
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GPG Key ID: 6422E5D217FC628B
2 changed files with 8 additions and 3 deletions
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7
src/lexer.cpp
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@ -260,7 +260,7 @@ static bool is_unicode_Lo_char(uint32_t c) {
} }
void Lexer::eat_number() { void Lexer::eat_number() {
PK_LOCAL_STATIC const std::regex pattern("^(0[xo])?[0-9a-fA-F]+(\\.[0-9]+)?(L)?"); PK_LOCAL_STATIC const std::regex pattern("^(0[xob])?[0-9a-fA-F]+(\\.[0-9]+)?(L)?");
std::smatch m; std::smatch m;
const char* i = token_start; const char* i = token_start;
@ -278,14 +278,15 @@ static bool is_unicode_Lo_char(uint32_t c) {
} }
if(m[1].matched && m[2].matched){ if(m[1].matched && m[2].matched){
SyntaxError("hex/octal literal should not contain a dot"); SyntaxError("binary/hex/octal literal should not contain a dot");
} }
try{ try{
int base = 10; int base = 10;
size_t size; size_t size;
if (m[1].matched) { if (m[1].matched) {
if (m[1].str() == "0o") base=8; if (m[1].str() == "0b") base = 2;
else if (m[1].str() == "0o") base = 8;
else base = 16; else base = 16;
} }
if (m[2].matched) { if (m[2].matched) {

4
tests/01_int.py
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@ -9,6 +9,10 @@ assert 2**60-1 + 546 - 0xfffffffffffff == 1148417904979477026
assert 0o1234 == 668 assert 0o1234 == 668
assert 0o17777777777 == 2147483647 assert 0o17777777777 == 2147483647
# test binary literals
assert 0b10010 == 18
assert 0b11111111111111111111111111111111 == 4294967295
# test == != >= <= < > # test == != >= <= < >
assert -1 == -1 assert -1 == -1
assert -1 != 1 assert -1 != 1