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author | Roberto Ierusalimschy <roberto@inf.puc-rio.br> | 2001-02-05 15:48:52 -0200 |
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committer | Roberto Ierusalimschy <roberto@inf.puc-rio.br> | 2001-02-05 15:48:52 -0200 |
commit | d1fc6244f0bb4d042bb48a4121255f87692afd15 (patch) | |
tree | 31f31b96ce5ff1c07b8990e92bfaee49887def23 /lparser.c | |
parent | 7e3d3e1f70b75f0d5d8b5e3b240404a9f9adbcf1 (diff) | |
download | lua-d1fc6244f0bb4d042bb48a4121255f87692afd15.tar.gz lua-d1fc6244f0bb4d042bb48a4121255f87692afd15.tar.bz2 lua-d1fc6244f0bb4d042bb48a4121255f87692afd15.zip |
extended syntax to allow function a.b.c (x)
Diffstat (limited to 'lparser.c')
-rw-r--r-- | lparser.c | 20 |
1 files changed, 12 insertions, 8 deletions
@@ -1,5 +1,5 @@ | |||
1 | /* | 1 | /* |
2 | ** $Id: lparser.c,v 1.127 2001/01/29 15:26:40 roberto Exp roberto $ | 2 | ** $Id: lparser.c,v 1.128 2001/01/31 13:13:17 roberto Exp roberto $ |
3 | ** LL(1) Parser and code generator for Lua | 3 | ** LL(1) Parser and code generator for Lua |
4 | ** See Copyright Notice in lua.h | 4 | ** See Copyright Notice in lua.h |
5 | */ | 5 | */ |
@@ -383,8 +383,8 @@ static int explist1 (LexState *ls) { | |||
383 | expdesc v; | 383 | expdesc v; |
384 | expr(ls, &v); | 384 | expr(ls, &v); |
385 | while (ls->t.token == ',') { | 385 | while (ls->t.token == ',') { |
386 | luaK_tostack(ls, &v, 1); /* gets only 1 value from previous expression */ | ||
387 | next(ls); /* skip comma */ | 386 | next(ls); /* skip comma */ |
387 | luaK_tostack(ls, &v, 1); /* gets only 1 value from previous expression */ | ||
388 | expr(ls, &v); | 388 | expr(ls, &v); |
389 | n++; | 389 | n++; |
390 | } | 390 | } |
@@ -450,11 +450,9 @@ static void var_or_func_tail (LexState *ls, expdesc *v) { | |||
450 | break; | 450 | break; |
451 | } | 451 | } |
452 | case ':': { /* var_or_func_tail -> ':' NAME funcargs */ | 452 | case ':': { /* var_or_func_tail -> ':' NAME funcargs */ |
453 | int name; | ||
454 | next(ls); | 453 | next(ls); |
455 | name = checkname(ls); | ||
456 | luaK_tostack(ls, v, 1); /* `v' must be on stack */ | 454 | luaK_tostack(ls, v, 1); /* `v' must be on stack */ |
457 | luaK_code1(ls->fs, OP_PUSHSELF, name); | 455 | luaK_code1(ls->fs, OP_PUSHSELF, checkname(ls)); |
458 | funcargs(ls, 1); | 456 | funcargs(ls, 1); |
459 | v->k = VEXP; | 457 | v->k = VEXP; |
460 | v->u.l.t = v->u.l.f = NO_JUMP; | 458 | v->u.l.t = v->u.l.f = NO_JUMP; |
@@ -966,11 +964,17 @@ static void localstat (LexState *ls) { | |||
966 | 964 | ||
967 | 965 | ||
968 | static int funcname (LexState *ls, expdesc *v) { | 966 | static int funcname (LexState *ls, expdesc *v) { |
969 | /* funcname -> NAME [':' NAME | '.' NAME] */ | 967 | /* funcname -> NAME {'.' NAME} [':' NAME] */ |
970 | int needself = 0; | 968 | int needself = 0; |
971 | singlevar(ls, str_checkname(ls), v); | 969 | singlevar(ls, str_checkname(ls), v); |
972 | if (ls->t.token == ':' || ls->t.token == '.') { | 970 | while (ls->t.token == '.') { |
973 | needself = (ls->t.token == ':'); | 971 | next(ls); |
972 | luaK_tostack(ls, v, 1); | ||
973 | luaK_kstr(ls, checkname(ls)); | ||
974 | v->k = VINDEXED; | ||
975 | } | ||
976 | if (ls->t.token == ':') { | ||
977 | needself = 1; | ||
974 | next(ls); | 978 | next(ls); |
975 | luaK_tostack(ls, v, 1); | 979 | luaK_tostack(ls, v, 1); |
976 | luaK_kstr(ls, checkname(ls)); | 980 | luaK_kstr(ls, checkname(ls)); |