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if-else chain now is an iteration over a table

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cozis
2022-04-02 01:31:01 +02:00
parent fc0f4905c7
commit a6817ddcf9
2 changed files with 24 additions and 53 deletions
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examples/bug.noja
-1
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@@ -1 +0,0 @@
unicode('');
src/compiler/parse.c
+24 -52
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@@ -218,59 +218,31 @@ static Token *tokenize(Source *src, BPAlloc *alloc, Error *error)
tok->length = i - tok->offset; tok->length = i - tok->offset;
#define matchstr(str, len, const_str) \ static const struct {
(len == sizeof(const_str)-1 && !strncmp(str, const_str, sizeof(const_str)-1)) TokenKind kind;
int size;
if(matchstr(str + tok->offset, tok->length, "if")) const char *text;
{ } kwords[] = {
tok->kind = TKWIF; { TKWIF, 2, "if" },
} { TKWFUN, 3, "fun" },
else if(matchstr(str + tok->offset, tok->length, "fun")) { TKWNOT, 3, "not" },
{ { TKWAND, 3, "and" },
tok->kind = TKWFUN; { TKWOR, 2, "or" },
} { TKWELSE, 4, "else" },
else if(matchstr(str + tok->offset, tok->length, "not")) { TKWNONE, 4, "none" },
{ { TKWTRUE, 4, "true" },
tok->kind = TKWNOT; { TKWFALSE, 5, "false" },
} { TKWRETURN, 6, "return" },
else if(matchstr(str + tok->offset, tok->length, "and")) { TKWWHILE, 5, "while" },
{ { TKWDO, 2, "do" },
tok->kind = TKWAND; };
}
else if(matchstr(str + tok->offset, tok->length, "or"))
{
tok->kind = TKWOR;
}
else if(matchstr(str + tok->offset, tok->length, "else"))
{
tok->kind = TKWELSE;
}
else if(matchstr(str + tok->offset, tok->length, "none"))
{
tok->kind = TKWNONE;
}
else if(matchstr(str + tok->offset, tok->length, "true"))
{
tok->kind = TKWTRUE;
}
else if(matchstr(str + tok->offset, tok->length, "false"))
{
tok->kind = TKWFALSE;
}
else if(matchstr(str + tok->offset, tok->length, "return"))
{
tok->kind = TKWRETURN;
}
else if(matchstr(str + tok->offset, tok->length, "while"))
{
tok->kind = TKWWHILE;
}
else if(matchstr(str + tok->offset, tok->length, "do"))
{
tok->kind = TKWDO;
}
#undef matchstr for(unsigned int i = 0; i < sizeof(kwords)/sizeof(*kwords); i += 1)
if(kwords[i].size == tok->length && !strncmp(kwords[i].text, str + tok->offset, tok->length))
{
tok->kind = kwords[i].kind;
break;
}
} }
else if(isdigit(str[i])) else if(isdigit(str[i]))
{ {