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author | Mike Pall <mike> | 2013-02-28 01:11:49 +0100 |
---|---|---|
committer | Mike Pall <mike> | 2013-02-28 01:11:49 +0100 |
commit | 87c51e7f57ec9277a02e7e21c8a28b4cb9d08914 (patch) | |
tree | da3a7ac7babe8fe86d68df7472faa753dd70f682 /src/lj_parse.c | |
parent | 116cdd7e9a578efffa5a9ca38167d059d12296d7 (diff) | |
download | luajit-87c51e7f57ec9277a02e7e21c8a28b4cb9d08914.tar.gz luajit-87c51e7f57ec9277a02e7e21c8a28b4cb9d08914.tar.bz2 luajit-87c51e7f57ec9277a02e7e21c8a28b4cb9d08914.zip |
Cleanup lexer source code.
Diffstat (limited to 'src/lj_parse.c')
-rw-r--r-- | src/lj_parse.c | 100 |
1 files changed, 50 insertions, 50 deletions
diff --git a/src/lj_parse.c b/src/lj_parse.c index 64652ed2..39a01e6f 100644 --- a/src/lj_parse.c +++ b/src/lj_parse.c | |||
@@ -166,12 +166,12 @@ LJ_STATIC_ASSERT((int)BC_MODVV-(int)BC_ADDVV == (int)OPR_MOD-(int)OPR_ADD); | |||
166 | 166 | ||
167 | LJ_NORET LJ_NOINLINE static void err_syntax(LexState *ls, ErrMsg em) | 167 | LJ_NORET LJ_NOINLINE static void err_syntax(LexState *ls, ErrMsg em) |
168 | { | 168 | { |
169 | lj_lex_error(ls, ls->token, em); | 169 | lj_lex_error(ls, ls->tok, em); |
170 | } | 170 | } |
171 | 171 | ||
172 | LJ_NORET LJ_NOINLINE static void err_token(LexState *ls, LexToken token) | 172 | LJ_NORET LJ_NOINLINE static void err_token(LexState *ls, LexToken tok) |
173 | { | 173 | { |
174 | lj_lex_error(ls, ls->token, LJ_ERR_XTOKEN, lj_lex_token2str(ls, token)); | 174 | lj_lex_error(ls, ls->tok, LJ_ERR_XTOKEN, lj_lex_token2str(ls, tok)); |
175 | } | 175 | } |
176 | 176 | ||
177 | LJ_NORET static void err_limit(FuncState *fs, uint32_t limit, const char *what) | 177 | LJ_NORET static void err_limit(FuncState *fs, uint32_t limit, const char *what) |
@@ -982,7 +982,7 @@ static void bcemit_unop(FuncState *fs, BCOp op, ExpDesc *e) | |||
982 | /* Check and consume optional token. */ | 982 | /* Check and consume optional token. */ |
983 | static int lex_opt(LexState *ls, LexToken tok) | 983 | static int lex_opt(LexState *ls, LexToken tok) |
984 | { | 984 | { |
985 | if (ls->token == tok) { | 985 | if (ls->tok == tok) { |
986 | lj_lex_next(ls); | 986 | lj_lex_next(ls); |
987 | return 1; | 987 | return 1; |
988 | } | 988 | } |
@@ -992,7 +992,7 @@ static int lex_opt(LexState *ls, LexToken tok) | |||
992 | /* Check and consume token. */ | 992 | /* Check and consume token. */ |
993 | static void lex_check(LexState *ls, LexToken tok) | 993 | static void lex_check(LexState *ls, LexToken tok) |
994 | { | 994 | { |
995 | if (ls->token != tok) | 995 | if (ls->tok != tok) |
996 | err_token(ls, tok); | 996 | err_token(ls, tok); |
997 | lj_lex_next(ls); | 997 | lj_lex_next(ls); |
998 | } | 998 | } |
@@ -1006,7 +1006,7 @@ static void lex_match(LexState *ls, LexToken what, LexToken who, BCLine line) | |||
1006 | } else { | 1006 | } else { |
1007 | const char *swhat = lj_lex_token2str(ls, what); | 1007 | const char *swhat = lj_lex_token2str(ls, what); |
1008 | const char *swho = lj_lex_token2str(ls, who); | 1008 | const char *swho = lj_lex_token2str(ls, who); |
1009 | lj_lex_error(ls, ls->token, LJ_ERR_XMATCH, swhat, swho, line); | 1009 | lj_lex_error(ls, ls->tok, LJ_ERR_XMATCH, swhat, swho, line); |
1010 | } | 1010 | } |
1011 | } | 1011 | } |
1012 | } | 1012 | } |
@@ -1015,9 +1015,9 @@ static void lex_match(LexState *ls, LexToken what, LexToken who, BCLine line) | |||
1015 | static GCstr *lex_str(LexState *ls) | 1015 | static GCstr *lex_str(LexState *ls) |
1016 | { | 1016 | { |
1017 | GCstr *s; | 1017 | GCstr *s; |
1018 | if (ls->token != TK_name && (LJ_52 || ls->token != TK_goto)) | 1018 | if (ls->tok != TK_name && (LJ_52 || ls->tok != TK_goto)) |
1019 | err_token(ls, TK_name); | 1019 | err_token(ls, TK_name); |
1020 | s = strV(&ls->tokenval); | 1020 | s = strV(&ls->tokval); |
1021 | lj_lex_next(ls); | 1021 | lj_lex_next(ls); |
1022 | return s; | 1022 | return s; |
1023 | } | 1023 | } |
@@ -1584,7 +1584,7 @@ static GCproto *fs_finish(LexState *ls, BCLine line) | |||
1584 | L->top--; /* Pop table of constants. */ | 1584 | L->top--; /* Pop table of constants. */ |
1585 | ls->vtop = fs->vbase; /* Reset variable stack. */ | 1585 | ls->vtop = fs->vbase; /* Reset variable stack. */ |
1586 | ls->fs = fs->prev; | 1586 | ls->fs = fs->prev; |
1587 | lua_assert(ls->fs != NULL || ls->token == TK_eof); | 1587 | lua_assert(ls->fs != NULL || ls->tok == TK_eof); |
1588 | return pt; | 1588 | return pt; |
1589 | } | 1589 | } |
1590 | 1590 | ||
@@ -1706,15 +1706,15 @@ static void expr_table(LexState *ls, ExpDesc *e) | |||
1706 | bcreg_reserve(fs, 1); | 1706 | bcreg_reserve(fs, 1); |
1707 | freg++; | 1707 | freg++; |
1708 | lex_check(ls, '{'); | 1708 | lex_check(ls, '{'); |
1709 | while (ls->token != '}') { | 1709 | while (ls->tok != '}') { |
1710 | ExpDesc key, val; | 1710 | ExpDesc key, val; |
1711 | vcall = 0; | 1711 | vcall = 0; |
1712 | if (ls->token == '[') { | 1712 | if (ls->tok == '[') { |
1713 | expr_bracket(ls, &key); /* Already calls expr_toval. */ | 1713 | expr_bracket(ls, &key); /* Already calls expr_toval. */ |
1714 | if (!expr_isk(&key)) expr_index(fs, e, &key); | 1714 | if (!expr_isk(&key)) expr_index(fs, e, &key); |
1715 | if (expr_isnumk(&key) && expr_numiszero(&key)) needarr = 1; else nhash++; | 1715 | if (expr_isnumk(&key) && expr_numiszero(&key)) needarr = 1; else nhash++; |
1716 | lex_check(ls, '='); | 1716 | lex_check(ls, '='); |
1717 | } else if ((ls->token == TK_name || (!LJ_52 && ls->token == TK_goto)) && | 1717 | } else if ((ls->tok == TK_name || (!LJ_52 && ls->tok == TK_goto)) && |
1718 | lj_lex_lookahead(ls) == '=') { | 1718 | lj_lex_lookahead(ls) == '=') { |
1719 | expr_str(ls, &key); | 1719 | expr_str(ls, &key); |
1720 | lex_check(ls, '='); | 1720 | lex_check(ls, '='); |
@@ -1807,11 +1807,11 @@ static BCReg parse_params(LexState *ls, int needself) | |||
1807 | lex_check(ls, '('); | 1807 | lex_check(ls, '('); |
1808 | if (needself) | 1808 | if (needself) |
1809 | var_new_lit(ls, nparams++, "self"); | 1809 | var_new_lit(ls, nparams++, "self"); |
1810 | if (ls->token != ')') { | 1810 | if (ls->tok != ')') { |
1811 | do { | 1811 | do { |
1812 | if (ls->token == TK_name || (!LJ_52 && ls->token == TK_goto)) { | 1812 | if (ls->tok == TK_name || (!LJ_52 && ls->tok == TK_goto)) { |
1813 | var_new(ls, nparams++, lex_str(ls)); | 1813 | var_new(ls, nparams++, lex_str(ls)); |
1814 | } else if (ls->token == TK_dots) { | 1814 | } else if (ls->tok == TK_dots) { |
1815 | lj_lex_next(ls); | 1815 | lj_lex_next(ls); |
1816 | fs->flags |= PROTO_VARARG; | 1816 | fs->flags |= PROTO_VARARG; |
1817 | break; | 1817 | break; |
@@ -1845,7 +1845,7 @@ static void parse_body(LexState *ls, ExpDesc *e, int needself, BCLine line) | |||
1845 | fs.bclim = pfs->bclim - pfs->pc; | 1845 | fs.bclim = pfs->bclim - pfs->pc; |
1846 | bcemit_AD(&fs, BC_FUNCF, 0, 0); /* Placeholder. */ | 1846 | bcemit_AD(&fs, BC_FUNCF, 0, 0); /* Placeholder. */ |
1847 | parse_chunk(ls); | 1847 | parse_chunk(ls); |
1848 | if (ls->token != TK_end) lex_match(ls, TK_end, TK_function, line); | 1848 | if (ls->tok != TK_end) lex_match(ls, TK_end, TK_function, line); |
1849 | pt = fs_finish(ls, (ls->lastline = ls->linenumber)); | 1849 | pt = fs_finish(ls, (ls->lastline = ls->linenumber)); |
1850 | pfs->bcbase = ls->bcstack + oldbase; /* May have been reallocated. */ | 1850 | pfs->bcbase = ls->bcstack + oldbase; /* May have been reallocated. */ |
1851 | pfs->bclim = (BCPos)(ls->sizebcstack - oldbase); | 1851 | pfs->bclim = (BCPos)(ls->sizebcstack - oldbase); |
@@ -1884,13 +1884,13 @@ static void parse_args(LexState *ls, ExpDesc *e) | |||
1884 | BCIns ins; | 1884 | BCIns ins; |
1885 | BCReg base; | 1885 | BCReg base; |
1886 | BCLine line = ls->linenumber; | 1886 | BCLine line = ls->linenumber; |
1887 | if (ls->token == '(') { | 1887 | if (ls->tok == '(') { |
1888 | #if !LJ_52 | 1888 | #if !LJ_52 |
1889 | if (line != ls->lastline) | 1889 | if (line != ls->lastline) |
1890 | err_syntax(ls, LJ_ERR_XAMBIG); | 1890 | err_syntax(ls, LJ_ERR_XAMBIG); |
1891 | #endif | 1891 | #endif |
1892 | lj_lex_next(ls); | 1892 | lj_lex_next(ls); |
1893 | if (ls->token == ')') { /* f(). */ | 1893 | if (ls->tok == ')') { /* f(). */ |
1894 | args.k = VVOID; | 1894 | args.k = VVOID; |
1895 | } else { | 1895 | } else { |
1896 | expr_list(ls, &args); | 1896 | expr_list(ls, &args); |
@@ -1898,11 +1898,11 @@ static void parse_args(LexState *ls, ExpDesc *e) | |||
1898 | setbc_b(bcptr(fs, &args), 0); /* Pass on multiple results. */ | 1898 | setbc_b(bcptr(fs, &args), 0); /* Pass on multiple results. */ |
1899 | } | 1899 | } |
1900 | lex_match(ls, ')', '(', line); | 1900 | lex_match(ls, ')', '(', line); |
1901 | } else if (ls->token == '{') { | 1901 | } else if (ls->tok == '{') { |
1902 | expr_table(ls, &args); | 1902 | expr_table(ls, &args); |
1903 | } else if (ls->token == TK_string) { | 1903 | } else if (ls->tok == TK_string) { |
1904 | expr_init(&args, VKSTR, 0); | 1904 | expr_init(&args, VKSTR, 0); |
1905 | args.u.sval = strV(&ls->tokenval); | 1905 | args.u.sval = strV(&ls->tokval); |
1906 | lj_lex_next(ls); | 1906 | lj_lex_next(ls); |
1907 | } else { | 1907 | } else { |
1908 | err_syntax(ls, LJ_ERR_XFUNARG); | 1908 | err_syntax(ls, LJ_ERR_XFUNARG); |
@@ -1928,32 +1928,32 @@ static void expr_primary(LexState *ls, ExpDesc *v) | |||
1928 | { | 1928 | { |
1929 | FuncState *fs = ls->fs; | 1929 | FuncState *fs = ls->fs; |
1930 | /* Parse prefix expression. */ | 1930 | /* Parse prefix expression. */ |
1931 | if (ls->token == '(') { | 1931 | if (ls->tok == '(') { |
1932 | BCLine line = ls->linenumber; | 1932 | BCLine line = ls->linenumber; |
1933 | lj_lex_next(ls); | 1933 | lj_lex_next(ls); |
1934 | expr(ls, v); | 1934 | expr(ls, v); |
1935 | lex_match(ls, ')', '(', line); | 1935 | lex_match(ls, ')', '(', line); |
1936 | expr_discharge(ls->fs, v); | 1936 | expr_discharge(ls->fs, v); |
1937 | } else if (ls->token == TK_name || (!LJ_52 && ls->token == TK_goto)) { | 1937 | } else if (ls->tok == TK_name || (!LJ_52 && ls->tok == TK_goto)) { |
1938 | var_lookup(ls, v); | 1938 | var_lookup(ls, v); |
1939 | } else { | 1939 | } else { |
1940 | err_syntax(ls, LJ_ERR_XSYMBOL); | 1940 | err_syntax(ls, LJ_ERR_XSYMBOL); |
1941 | } | 1941 | } |
1942 | for (;;) { /* Parse multiple expression suffixes. */ | 1942 | for (;;) { /* Parse multiple expression suffixes. */ |
1943 | if (ls->token == '.') { | 1943 | if (ls->tok == '.') { |
1944 | expr_field(ls, v); | 1944 | expr_field(ls, v); |
1945 | } else if (ls->token == '[') { | 1945 | } else if (ls->tok == '[') { |
1946 | ExpDesc key; | 1946 | ExpDesc key; |
1947 | expr_toanyreg(fs, v); | 1947 | expr_toanyreg(fs, v); |
1948 | expr_bracket(ls, &key); | 1948 | expr_bracket(ls, &key); |
1949 | expr_index(fs, v, &key); | 1949 | expr_index(fs, v, &key); |
1950 | } else if (ls->token == ':') { | 1950 | } else if (ls->tok == ':') { |
1951 | ExpDesc key; | 1951 | ExpDesc key; |
1952 | lj_lex_next(ls); | 1952 | lj_lex_next(ls); |
1953 | expr_str(ls, &key); | 1953 | expr_str(ls, &key); |
1954 | bcemit_method(fs, v, &key); | 1954 | bcemit_method(fs, v, &key); |
1955 | parse_args(ls, v); | 1955 | parse_args(ls, v); |
1956 | } else if (ls->token == '(' || ls->token == TK_string || ls->token == '{') { | 1956 | } else if (ls->tok == '(' || ls->tok == TK_string || ls->tok == '{') { |
1957 | expr_tonextreg(fs, v); | 1957 | expr_tonextreg(fs, v); |
1958 | parse_args(ls, v); | 1958 | parse_args(ls, v); |
1959 | } else { | 1959 | } else { |
@@ -1965,14 +1965,14 @@ static void expr_primary(LexState *ls, ExpDesc *v) | |||
1965 | /* Parse simple expression. */ | 1965 | /* Parse simple expression. */ |
1966 | static void expr_simple(LexState *ls, ExpDesc *v) | 1966 | static void expr_simple(LexState *ls, ExpDesc *v) |
1967 | { | 1967 | { |
1968 | switch (ls->token) { | 1968 | switch (ls->tok) { |
1969 | case TK_number: | 1969 | case TK_number: |
1970 | expr_init(v, (LJ_HASFFI && tviscdata(&ls->tokenval)) ? VKCDATA : VKNUM, 0); | 1970 | expr_init(v, (LJ_HASFFI && tviscdata(&ls->tokval)) ? VKCDATA : VKNUM, 0); |
1971 | copyTV(ls->L, &v->u.nval, &ls->tokenval); | 1971 | copyTV(ls->L, &v->u.nval, &ls->tokval); |
1972 | break; | 1972 | break; |
1973 | case TK_string: | 1973 | case TK_string: |
1974 | expr_init(v, VKSTR, 0); | 1974 | expr_init(v, VKSTR, 0); |
1975 | v->u.sval = strV(&ls->tokenval); | 1975 | v->u.sval = strV(&ls->tokval); |
1976 | break; | 1976 | break; |
1977 | case TK_nil: | 1977 | case TK_nil: |
1978 | expr_init(v, VKNIL, 0); | 1978 | expr_init(v, VKNIL, 0); |
@@ -2060,11 +2060,11 @@ static BinOpr expr_binop(LexState *ls, ExpDesc *v, uint32_t limit); | |||
2060 | static void expr_unop(LexState *ls, ExpDesc *v) | 2060 | static void expr_unop(LexState *ls, ExpDesc *v) |
2061 | { | 2061 | { |
2062 | BCOp op; | 2062 | BCOp op; |
2063 | if (ls->token == TK_not) { | 2063 | if (ls->tok == TK_not) { |
2064 | op = BC_NOT; | 2064 | op = BC_NOT; |
2065 | } else if (ls->token == '-') { | 2065 | } else if (ls->tok == '-') { |
2066 | op = BC_UNM; | 2066 | op = BC_UNM; |
2067 | } else if (ls->token == '#') { | 2067 | } else if (ls->tok == '#') { |
2068 | op = BC_LEN; | 2068 | op = BC_LEN; |
2069 | } else { | 2069 | } else { |
2070 | expr_simple(ls, v); | 2070 | expr_simple(ls, v); |
@@ -2081,7 +2081,7 @@ static BinOpr expr_binop(LexState *ls, ExpDesc *v, uint32_t limit) | |||
2081 | BinOpr op; | 2081 | BinOpr op; |
2082 | synlevel_begin(ls); | 2082 | synlevel_begin(ls); |
2083 | expr_unop(ls, v); | 2083 | expr_unop(ls, v); |
2084 | op = token2binop(ls->token); | 2084 | op = token2binop(ls->tok); |
2085 | while (op != OPR_NOBINOPR && priority[op].left > limit) { | 2085 | while (op != OPR_NOBINOPR && priority[op].left > limit) { |
2086 | ExpDesc v2; | 2086 | ExpDesc v2; |
2087 | BinOpr nextop; | 2087 | BinOpr nextop; |
@@ -2270,9 +2270,9 @@ static void parse_func(LexState *ls, BCLine line) | |||
2270 | lj_lex_next(ls); /* Skip 'function'. */ | 2270 | lj_lex_next(ls); /* Skip 'function'. */ |
2271 | /* Parse function name. */ | 2271 | /* Parse function name. */ |
2272 | var_lookup(ls, &v); | 2272 | var_lookup(ls, &v); |
2273 | while (ls->token == '.') /* Multiple dot-separated fields. */ | 2273 | while (ls->tok == '.') /* Multiple dot-separated fields. */ |
2274 | expr_field(ls, &v); | 2274 | expr_field(ls, &v); |
2275 | if (ls->token == ':') { /* Optional colon to signify method call. */ | 2275 | if (ls->tok == ':') { /* Optional colon to signify method call. */ |
2276 | needself = 1; | 2276 | needself = 1; |
2277 | expr_field(ls, &v); | 2277 | expr_field(ls, &v); |
2278 | } | 2278 | } |
@@ -2285,9 +2285,9 @@ static void parse_func(LexState *ls, BCLine line) | |||
2285 | /* -- Control transfer statements ----------------------------------------- */ | 2285 | /* -- Control transfer statements ----------------------------------------- */ |
2286 | 2286 | ||
2287 | /* Check for end of block. */ | 2287 | /* Check for end of block. */ |
2288 | static int endofblock(LexToken token) | 2288 | static int parse_isend(LexToken tok) |
2289 | { | 2289 | { |
2290 | switch (token) { | 2290 | switch (tok) { |
2291 | case TK_else: case TK_elseif: case TK_end: case TK_until: case TK_eof: | 2291 | case TK_else: case TK_elseif: case TK_end: case TK_until: case TK_eof: |
2292 | return 1; | 2292 | return 1; |
2293 | default: | 2293 | default: |
@@ -2302,7 +2302,7 @@ static void parse_return(LexState *ls) | |||
2302 | FuncState *fs = ls->fs; | 2302 | FuncState *fs = ls->fs; |
2303 | lj_lex_next(ls); /* Skip 'return'. */ | 2303 | lj_lex_next(ls); /* Skip 'return'. */ |
2304 | fs->flags |= PROTO_HAS_RETURN; | 2304 | fs->flags |= PROTO_HAS_RETURN; |
2305 | if (endofblock(ls->token) || ls->token == ';') { /* Bare return. */ | 2305 | if (parse_isend(ls->tok) || ls->tok == ';') { /* Bare return. */ |
2306 | ins = BCINS_AD(BC_RET0, 0, 1); | 2306 | ins = BCINS_AD(BC_RET0, 0, 1); |
2307 | } else { /* Return with one or more values. */ | 2307 | } else { /* Return with one or more values. */ |
2308 | ExpDesc e; /* Receives the _last_ expression in the list. */ | 2308 | ExpDesc e; /* Receives the _last_ expression in the list. */ |
@@ -2368,18 +2368,18 @@ static void parse_label(LexState *ls) | |||
2368 | lex_check(ls, TK_label); | 2368 | lex_check(ls, TK_label); |
2369 | /* Recursively parse trailing statements: labels and ';' (Lua 5.2 only). */ | 2369 | /* Recursively parse trailing statements: labels and ';' (Lua 5.2 only). */ |
2370 | for (;;) { | 2370 | for (;;) { |
2371 | if (ls->token == TK_label) { | 2371 | if (ls->tok == TK_label) { |
2372 | synlevel_begin(ls); | 2372 | synlevel_begin(ls); |
2373 | parse_label(ls); | 2373 | parse_label(ls); |
2374 | synlevel_end(ls); | 2374 | synlevel_end(ls); |
2375 | } else if (LJ_52 && ls->token == ';') { | 2375 | } else if (LJ_52 && ls->tok == ';') { |
2376 | lj_lex_next(ls); | 2376 | lj_lex_next(ls); |
2377 | } else { | 2377 | } else { |
2378 | break; | 2378 | break; |
2379 | } | 2379 | } |
2380 | } | 2380 | } |
2381 | /* Trailing label is considered to be outside of scope. */ | 2381 | /* Trailing label is considered to be outside of scope. */ |
2382 | if (endofblock(ls->token) && ls->token != TK_until) | 2382 | if (parse_isend(ls->tok) && ls->tok != TK_until) |
2383 | ls->vstack[idx].slot = fs->bl->nactvar; | 2383 | ls->vstack[idx].slot = fs->bl->nactvar; |
2384 | gola_resolve(ls, fs->bl, idx); | 2384 | gola_resolve(ls, fs->bl, idx); |
2385 | } | 2385 | } |
@@ -2563,9 +2563,9 @@ static void parse_for(LexState *ls, BCLine line) | |||
2563 | fscope_begin(fs, &bl, FSCOPE_LOOP); | 2563 | fscope_begin(fs, &bl, FSCOPE_LOOP); |
2564 | lj_lex_next(ls); /* Skip 'for'. */ | 2564 | lj_lex_next(ls); /* Skip 'for'. */ |
2565 | varname = lex_str(ls); /* Get first variable name. */ | 2565 | varname = lex_str(ls); /* Get first variable name. */ |
2566 | if (ls->token == '=') | 2566 | if (ls->tok == '=') |
2567 | parse_for_num(ls, varname, line); | 2567 | parse_for_num(ls, varname, line); |
2568 | else if (ls->token == ',' || ls->token == TK_in) | 2568 | else if (ls->tok == ',' || ls->tok == TK_in) |
2569 | parse_for_iter(ls, varname); | 2569 | parse_for_iter(ls, varname); |
2570 | else | 2570 | else |
2571 | err_syntax(ls, LJ_ERR_XFOR); | 2571 | err_syntax(ls, LJ_ERR_XFOR); |
@@ -2591,12 +2591,12 @@ static void parse_if(LexState *ls, BCLine line) | |||
2591 | BCPos flist; | 2591 | BCPos flist; |
2592 | BCPos escapelist = NO_JMP; | 2592 | BCPos escapelist = NO_JMP; |
2593 | flist = parse_then(ls); | 2593 | flist = parse_then(ls); |
2594 | while (ls->token == TK_elseif) { /* Parse multiple 'elseif' blocks. */ | 2594 | while (ls->tok == TK_elseif) { /* Parse multiple 'elseif' blocks. */ |
2595 | jmp_append(fs, &escapelist, bcemit_jmp(fs)); | 2595 | jmp_append(fs, &escapelist, bcemit_jmp(fs)); |
2596 | jmp_tohere(fs, flist); | 2596 | jmp_tohere(fs, flist); |
2597 | flist = parse_then(ls); | 2597 | flist = parse_then(ls); |
2598 | } | 2598 | } |
2599 | if (ls->token == TK_else) { /* Parse optional 'else' block. */ | 2599 | if (ls->tok == TK_else) { /* Parse optional 'else' block. */ |
2600 | jmp_append(fs, &escapelist, bcemit_jmp(fs)); | 2600 | jmp_append(fs, &escapelist, bcemit_jmp(fs)); |
2601 | jmp_tohere(fs, flist); | 2601 | jmp_tohere(fs, flist); |
2602 | lj_lex_next(ls); /* Skip 'else'. */ | 2602 | lj_lex_next(ls); /* Skip 'else'. */ |
@@ -2614,7 +2614,7 @@ static void parse_if(LexState *ls, BCLine line) | |||
2614 | static int parse_stmt(LexState *ls) | 2614 | static int parse_stmt(LexState *ls) |
2615 | { | 2615 | { |
2616 | BCLine line = ls->linenumber; | 2616 | BCLine line = ls->linenumber; |
2617 | switch (ls->token) { | 2617 | switch (ls->tok) { |
2618 | case TK_if: | 2618 | case TK_if: |
2619 | parse_if(ls, line); | 2619 | parse_if(ls, line); |
2620 | break; | 2620 | break; |
@@ -2672,7 +2672,7 @@ static void parse_chunk(LexState *ls) | |||
2672 | { | 2672 | { |
2673 | int islast = 0; | 2673 | int islast = 0; |
2674 | synlevel_begin(ls); | 2674 | synlevel_begin(ls); |
2675 | while (!islast && !endofblock(ls->token)) { | 2675 | while (!islast && !parse_isend(ls->tok)) { |
2676 | islast = parse_stmt(ls); | 2676 | islast = parse_stmt(ls); |
2677 | lex_opt(ls, ';'); | 2677 | lex_opt(ls, ';'); |
2678 | lua_assert(ls->fs->framesize >= ls->fs->freereg && | 2678 | lua_assert(ls->fs->framesize >= ls->fs->freereg && |
@@ -2707,7 +2707,7 @@ GCproto *lj_parse(LexState *ls) | |||
2707 | bcemit_AD(&fs, BC_FUNCV, 0, 0); /* Placeholder. */ | 2707 | bcemit_AD(&fs, BC_FUNCV, 0, 0); /* Placeholder. */ |
2708 | lj_lex_next(ls); /* Read-ahead first token. */ | 2708 | lj_lex_next(ls); /* Read-ahead first token. */ |
2709 | parse_chunk(ls); | 2709 | parse_chunk(ls); |
2710 | if (ls->token != TK_eof) | 2710 | if (ls->tok != TK_eof) |
2711 | err_token(ls, TK_eof); | 2711 | err_token(ls, TK_eof); |
2712 | pt = fs_finish(ls, ls->linenumber); | 2712 | pt = fs_finish(ls, ls->linenumber); |
2713 | L->top--; /* Drop chunkname. */ | 2713 | L->top--; /* Drop chunkname. */ |