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parse.y: lbracket

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* parse.y (lbracket): support .? before aref.  [Feature #11537]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@52422 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
nobu 2015-11-02 11:07:13 +00:00
parent 840e6b6307
commit dbf73f6fc2
3 changed files with 33 additions and 8 deletions
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4
ChangeLog
View file

@ -1,3 +1,7 @@
Mon Nov 2 20:07:10 2015 Nobuyoshi Nakada <nobu@ruby-lang.org>
* parse.y (lbracket): support .? before aref. [Feature #11537]
Sun Nov 1 17:14:36 2015 Koichi Sasada <ko1@atdot.net> Sun Nov 1 17:14:36 2015 Koichi Sasada <ko1@atdot.net>
* id_table.c (mix_id_table_insert): do not touch list during * id_table.c (mix_id_table_insert): do not touch list during

33
parse.y
View file

@ -373,6 +373,9 @@ static int parser_yyerror(struct parser_params*, const char*);
#define NODE_CALL_Q(q) (((q) == tDOTQ) ? NODE_QCALL : NODE_CALL) #define NODE_CALL_Q(q) (((q) == tDOTQ) ? NODE_QCALL : NODE_CALL)
#define NEW_QCALL(q,r,m,a) NEW_NODE(NODE_CALL_Q(q),r,m,a) #define NEW_QCALL(q,r,m,a) NEW_NODE(NODE_CALL_Q(q),r,m,a)
#define NO_QCALL(q, here) \
((q) != tDOTQ ? (void)0 : \
yyerror(".? in "here" is not supported yet"))
static int yylex(YYSTYPE*, struct parser_params*); static int yylex(YYSTYPE*, struct parser_params*);
@ -847,7 +850,7 @@ static void token_info_pop(struct parser_params*, const char *token, size_t len)
%type <node> mlhs mlhs_head mlhs_basic mlhs_item mlhs_node mlhs_post mlhs_inner %type <node> mlhs mlhs_head mlhs_basic mlhs_item mlhs_node mlhs_post mlhs_inner
%type <id> fsym keyword_variable user_variable sym symbol operation operation2 operation3 %type <id> fsym keyword_variable user_variable sym symbol operation operation2 operation3
%type <id> cname fname op f_rest_arg f_block_arg opt_f_block_arg f_norm_arg f_bad_arg %type <id> cname fname op f_rest_arg f_block_arg opt_f_block_arg f_norm_arg f_bad_arg
%type <id> f_kwrest f_label f_arg_asgn call_op call_op2 %type <id> f_kwrest f_label f_arg_asgn call_op call_op2 lbracket
/*%%%*/ /*%%%*/
/*% /*%
%type <val> program reswords then do dot_or_colon %type <val> program reswords then do dot_or_colon
@ -1243,11 +1246,15 @@ stmt : keyword_alias fitem {lex_state = EXPR_FNAME;} fitem
value_expr($3); value_expr($3);
$$ = new_op_assign($1, $2, $3); $$ = new_op_assign($1, $2, $3);
} }
| primary_value '[' opt_call_args rbracket tOP_ASGN command_call | primary_value lbracket opt_call_args rbracket tOP_ASGN command_call
{ {
/*%%%*/ /*%%%*/
NODE *args; NODE *args;
/*%
%*/
NO_QCALL($2, "lhs of op_asgn");
/*%%%*/
value_expr($6); value_expr($6);
if (!$3) $3 = NEW_ZARRAY(); if (!$3) $3 = NEW_ZARRAY();
args = arg_concat($3, $6); args = arg_concat($3, $6);
@ -1709,8 +1716,9 @@ mlhs_node : user_variable
{ {
$$ = assignable($1, 0); $$ = assignable($1, 0);
} }
| primary_value '[' opt_call_args rbracket | primary_value lbracket opt_call_args rbracket
{ {
NO_QCALL($2, "mlhs");
/*%%%*/ /*%%%*/
$$ = aryset($1, $3); $$ = aryset($1, $3);
/*% /*%
@ -1800,8 +1808,9 @@ lhs : user_variable
$$ = dispatch1(var_field, $$); $$ = dispatch1(var_field, $$);
%*/ %*/
} }
| primary_value '[' opt_call_args rbracket | primary_value lbracket opt_call_args rbracket
{ {
NO_QCALL($2, "lhs");
/*%%%*/ /*%%%*/
$$ = aryset($1, $3); $$ = aryset($1, $3);
/*% /*%
@ -2042,11 +2051,15 @@ arg : lhs '=' arg
%*/ %*/
$$ = new_op_assign($1, $2, $3); $$ = new_op_assign($1, $2, $3);
} }
| primary_value '[' opt_call_args rbracket tOP_ASGN arg | primary_value lbracket opt_call_args rbracket tOP_ASGN arg
{ {
/*%%%*/ /*%%%*/
NODE *args; NODE *args;
/*%
%*/
NO_QCALL($2, "lhs of op_asgn");
/*%%%*/
value_expr($6); value_expr($6);
if (!$3) $3 = NEW_ZARRAY(); if (!$3) $3 = NEW_ZARRAY();
if (nd_type($3) == NODE_BLOCK_PASS) { if (nd_type($3) == NODE_BLOCK_PASS) {
@ -3741,13 +3754,13 @@ method_call : fcall paren_args
$$ = dispatch0(zsuper); $$ = dispatch0(zsuper);
%*/ %*/
} }
| primary_value '[' opt_call_args rbracket | primary_value lbracket opt_call_args rbracket
{ {
/*%%%*/ /*%%%*/
if ($1 && nd_type($1) == NODE_SELF) if ($2 != tDOTQ && $1 && nd_type($1) == NODE_SELF)
$$ = NEW_FCALL(tAREF, $3); $$ = NEW_FCALL(tAREF, $3);
else else
$$ = NEW_CALL($1, tAREF, $3); $$ = NEW_QCALL($2, $1, tAREF, $3);
fixpos($$, $1); fixpos($$, $1);
/*% /*%
$$ = dispatch2(aref, $1, escape_Qundef($3)); $$ = dispatch2(aref, $1, escape_Qundef($3));
@ -5158,6 +5171,10 @@ opt_nl : /* none */
rparen : opt_nl ')' rparen : opt_nl ')'
; ;
lbracket : '[' {$$ = 0;}
| tDOTQ '[' {$$ = tDOTQ;}
;
rbracket : opt_nl ']' rbracket : opt_nl ']'
; ;

4
test/ruby/test_call.rb
View file

@ -46,9 +46,13 @@ class TestCall < Test::Unit::TestCase
assert_equal(5, o.y) assert_equal(5, o.y)
o.?z ||= 6 o.?z ||= 6
assert_equal(6, o.z) assert_equal(6, o.z)
assert_equal(42, o.?[:x])
assert_equal(42, o.?["x"])
o = nil o = nil
assert_nil(o.?x) assert_nil(o.?x)
assert_nil(o.?[:x])
assert_nil(o.?["x"])
assert_nothing_raised(NoMethodError) {o.?x = 6} assert_nothing_raised(NoMethodError) {o.?x = 6}
assert_nothing_raised(NoMethodError) {o.?x *= 7} assert_nothing_raised(NoMethodError) {o.?x *= 7}
end end