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ruby_parser.y
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ruby_parser.y
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############################################################
# This file is imported from a different project.
# DO NOT make modifications in this repo.
# File a patch instead and assign it to Ryan Davis
############################################################
# -*- racc -*-
class RubyParser
token kCLASS kMODULE kDEF kUNDEF kBEGIN kRESCUE kENSURE kEND kIF kUNLESS
kTHEN kELSIF kELSE kCASE kWHEN kWHILE kUNTIL kFOR kBREAK kNEXT
kREDO kRETRY kIN kDO kDO_COND kDO_BLOCK kRETURN kYIELD kSUPER
kSELF kNIL kTRUE kFALSE kAND kOR kNOT kIF_MOD kUNLESS_MOD kWHILE_MOD
kUNTIL_MOD kRESCUE_MOD kALIAS kDEFINED klBEGIN klEND k__LINE__
k__FILE__ tIDENTIFIER tFID tGVAR tIVAR tCONSTANT tCVAR tNTH_REF
tBACK_REF tSTRING_CONTENT tINTEGER tFLOAT tREGEXP_END tUPLUS
tUMINUS tUMINUS_NUM tPOW tCMP tEQ tEQQ tNEQ tGEQ tLEQ tANDOP
tOROP tMATCH tNMATCH tDOT tDOT2 tDOT3 tAREF tASET tLSHFT tRSHFT
tCOLON2 tCOLON3 tOP_ASGN tASSOC tLPAREN tLPAREN2 tRPAREN tLPAREN_ARG
tLBRACK tRBRACK tLBRACE tLBRACE_ARG tSTAR tSTAR2 tAMPER tAMPER2
tTILDE tPERCENT tDIVIDE tPLUS tMINUS tLT tGT tPIPE tBANG tCARET
tLCURLY tRCURLY tBACK_REF2 tSYMBEG tSTRING_BEG tXSTRING_BEG tREGEXP_BEG
tWORDS_BEG tAWORDS_BEG tSTRING_DBEG tSTRING_DVAR tSTRING_END tSTRING
tSYMBOL tNL tEH tCOLON tCOMMA tSPACE tSEMI tLAST_TOKEN
prechigh
right tBANG tTILDE tUPLUS
right tPOW
right tUMINUS_NUM tUMINUS
left tSTAR2 tDIVIDE tPERCENT
left tPLUS tMINUS
left tLSHFT tRSHFT
left tAMPER2
left tPIPE tCARET
left tGT tGEQ tLT tLEQ
nonassoc tCMP tEQ tEQQ tNEQ tMATCH tNMATCH
left tANDOP
left tOROP
nonassoc tDOT2 tDOT3
right tEH tCOLON
left kRESCUE_MOD
right tEQL tOP_ASGN
nonassoc kDEFINED
right kNOT
left kOR kAND
nonassoc kIF_MOD kUNLESS_MOD kWHILE_MOD kUNTIL_MOD
nonassoc tLBRACE_ARG
nonassoc tLOWEST
preclow
rule
program: {
self.lexer.lex_state = :expr_beg
}
compstmt
{
result = val[1]
}
bodystmt: compstmt opt_rescue opt_else opt_ensure
{
result = new_body val
}
compstmt: stmts opt_terms
{
result = new_compstmt val
}
stmts: none
| stmt
| stmts terms stmt
{
result = self.block_append val[0], val[2]
}
| error stmt
{
result = val[1]
}
stmt: kALIAS fitem
{
lexer.lex_state = :expr_fname
result = self.lexer.lineno
}
fitem
{
result = s(:alias, val[1], val[3]).line(val[2])
}
| kALIAS tGVAR tGVAR
{
result = s(:valias, val[1].to_sym, val[2].to_sym)
}
| kALIAS tGVAR tBACK_REF
{
result = s(:valias, val[1].to_sym, :"$#{val[2]}")
}
| kALIAS tGVAR tNTH_REF
{
yyerror "can't make alias for the number variables"
}
| kUNDEF undef_list
{
result = val[1]
}
| stmt kIF_MOD expr_value
{
result = new_if val[2], val[0], nil
}
| stmt kUNLESS_MOD expr_value
{
result = new_if val[2], nil, val[0]
}
| stmt kWHILE_MOD expr_value
{
result = new_while val[0], val[2], true
}
| stmt kUNTIL_MOD expr_value
{
result = new_until val[0], val[2], true
}
| stmt kRESCUE_MOD stmt
{
result = s(:rescue, val[0], s(:resbody, s(:array), val[2]))
}
| klBEGIN
{
if (self.in_def || self.in_single > 0) then
yyerror "BEGIN in method"
end
self.env.extend
}
tLCURLY compstmt tRCURLY
{
result = new_iter s(:preexe), nil, val[3] # TODO: add test?
result = nil # TODO: since it isn't supposed to go in the AST
}
| klEND tLCURLY compstmt tRCURLY
{
if (self.in_def || self.in_single > 0) then
yyerror "END in method; use at_exit"
end
result = new_iter s(:postexe), nil, val[2]
}
| lhs tEQL command_call
{
result = self.node_assign val[0], val[2]
}
| mlhs tEQL command_call
{
result = new_masgn val[0], val[2], :wrap
}
| var_lhs tOP_ASGN command_call
{
result = new_op_asgn val
}
| primary_value "[" aref_args tRBRACK tOP_ASGN command_call
{
result = s(:op_asgn1, val[0], val[2], val[4].to_sym, val[5])
}
| primary_value tDOT tIDENTIFIER tOP_ASGN command_call
{
result = s(:op_asgn, val[0], val[4], val[2], val[3])
}
| primary_value tDOT tCONSTANT tOP_ASGN command_call
{
result = s(:op_asgn, val[0], val[4], val[2], val[3])
}
| primary_value tCOLON2 tIDENTIFIER tOP_ASGN command_call
{
result = s(:op_asgn, val[0], val[4], val[2], val[3])
}
| backref tOP_ASGN command_call
{
self.backref_assign_error val[0]
}
| lhs tEQL mrhs
{
result = self.node_assign val[0], s(:svalue, val[2])
}
| mlhs tEQL arg_value
{
result = new_masgn val[0], val[2], :wrap
}
| mlhs tEQL mrhs
{
result = new_masgn val[0], val[2]
}
| expr
expr: command_call
| expr kAND expr
{
result = logop(:and, val[0], val[2])
}
| expr kOR expr
{
result = logop(:or, val[0], val[2])
}
| kNOT expr
{
result = s(:not, val[1])
}
| tBANG command_call
{
result = s(:not, val[1])
}
| arg
expr_value: expr
{
result = value_expr(val[0])
}
command_call: command
| block_command
| kRETURN call_args
{
result = s(:return, ret_args(val[1]))
}
| kBREAK call_args
{
result = s(:break, ret_args(val[1]))
}
| kNEXT call_args
{
result = s(:next, ret_args(val[1]))
}
block_command: block_call
| block_call tDOT operation2 command_args
{
result = new_call val[0], val[2], val[3]
}
| block_call tCOLON2 operation2 command_args
{
result = new_call val[0], val[2], val[3]
}
cmd_brace_block: tLBRACE_ARG
{
self.env.extend(:dynamic)
result = self.lexer.lineno
}
opt_block_var
{
result = self.env.dynamic.keys
}
compstmt tRCURLY
{
result = new_iter nil, val[2], val[4]
self.env.unextend
}
command: operation command_args =tLOWEST
{
result = new_call nil, val[0].to_sym, val[1]
}
| operation command_args cmd_brace_block
{
result = new_call nil, val[0].to_sym, val[1]
if val[2] then
if result[0] == :block_pass then
raise "both block arg and actual block given"
end
result, operation = val[2], result
result.insert 1, operation
end
}
| primary_value tDOT operation2 command_args =tLOWEST
{
result = new_call val[0], val[2].to_sym, val[3]
}
| primary_value tDOT operation2 command_args cmd_brace_block
{
result = new_call val[0], val[2].to_sym, val[3]
}
| primary_value tCOLON2 operation2 command_args =tLOWEST
{
result = new_call val[0], val[2].to_sym, val[3]
}
| primary_value tCOLON2 operation2 command_args cmd_brace_block
{
result = new_call val[0], val[2].to_sym, val[3]
if val[4] then
if result[0] == :block_pass then # REFACTOR
raise "both block arg and actual block given"
end
val[2] << result
result = val[2]
end
}
| kSUPER command_args
{
result = new_super val[1]
}
| kYIELD command_args
{
result = new_yield val[1]
}
mlhs: mlhs_basic
| tLPAREN mlhs_entry tRPAREN
{
result = val[1]
}
mlhs_entry: mlhs_basic
| tLPAREN mlhs_entry tRPAREN
{
result = s(:masgn, s(:array, val[1]))
}
mlhs_basic: mlhs_head
{
result = s(:masgn, val[0])
}
| mlhs_head mlhs_item
{
result = s(:masgn, val[0] << val[1].compact)
}
| mlhs_head tSTAR mlhs_node
{
result = s(:masgn, val[0] << s(:splat, val[2]))
}
| mlhs_head tSTAR
{
result = s(:masgn, val[0] << s(:splat))
}
| tSTAR mlhs_node
{
result = s(:masgn, s(:array, s(:splat, val[1])))
}
| tSTAR
{
result = s(:masgn, s(:array, s(:splat)))
}
mlhs_item: mlhs_node
| tLPAREN mlhs_entry tRPAREN
{
result = val[1]
}
mlhs_head: mlhs_item tCOMMA
{
result = s(:array, val[0])
}
| mlhs_head mlhs_item tCOMMA
{
result = val[0] << val[1].compact
}
mlhs_node: variable
{
result = self.assignable val[0]
}
| primary_value "[" aref_args tRBRACK
{
result = self.aryset val[0], val[2]
}
| primary_value tDOT tIDENTIFIER
{
result = s(:attrasgn, val[0], :"#{val[2]}=", s(:arglist))
}
| primary_value tCOLON2 tIDENTIFIER
{
result = s(:attrasgn, val[0], :"#{val[2]}=", s(:arglist))
}
| primary_value tDOT tCONSTANT
{
result = s(:attrasgn, val[0], :"#{val[2]}=", s(:arglist))
}
| primary_value tCOLON2 tCONSTANT
{
if (self.in_def || self.in_single > 0) then
yyerror "dynamic constant assignment"
end
result = s(:const, s(:colon2, val[0], val[2].to_sym), nil)
}
| tCOLON3 tCONSTANT
{
if (self.in_def || self.in_single > 0) then
yyerror "dynamic constant assignment"
end
result = s(:const, nil, s(:colon3, val[1].to_sym))
}
| backref
{
self.backref_assign_error val[0]
}
lhs: variable
{
result = self.assignable val[0]
}
| primary_value "[" aref_args tRBRACK
{
result = self.aryset val[0], val[2]
}
| primary_value tDOT tIDENTIFIER
{
result = s(:attrasgn, val[0], :"#{val[2]}=")
}
| primary_value tCOLON2 tIDENTIFIER
{
result = s(:attrasgn, val[0], :"#{val[2]}=")
}
| primary_value tDOT tCONSTANT
{
result = s(:attrasgn, val[0], :"#{val[2]}=")
}
| primary_value tCOLON2 tCONSTANT
{
if (self.in_def || self.in_single > 0) then
yyerror "dynamic constant assignment"
end
result = s(:const, s(:colon2, val[0], val[2].to_sym))
}
| tCOLON3 tCONSTANT
{
if (self.in_def || self.in_single > 0) then
yyerror "dynamic constant assignment"
end
result = s(:const, s(:colon3, val[1].to_sym))
}
| backref
{
self.backref_assign_error val[0]
}
cname: tIDENTIFIER
{
yyerror "class/module name must be CONSTANT"
}
| tCONSTANT
cpath: tCOLON3 cname
{
result = s(:colon3, val[1].to_sym)
}
| cname
{
result = val[0].to_sym
}
| primary_value tCOLON2 cname
{
result = s(:colon2, val[0], val[2].to_sym)
}
fname: tIDENTIFIER | tCONSTANT | tFID
| op
{
lexer.lex_state = :expr_end
result = val[0]
}
| reswords
{
lexer.lex_state = :expr_end
result = val[0]
}
# TODO: cruby has fsym and dsym
fitem: fname { result = s(:lit, val[0].to_sym) }
| symbol { result = s(:lit, val[0]) }
undef_list: fitem
{
result = new_undef val[0]
}
|
undef_list tCOMMA
{
lexer.lex_state = :expr_fname
}
fitem
{
result = new_undef val[0], val[3]
}
op: tPIPE | tCARET | tAMPER2 | tCMP | tEQ | tEQQ
| tMATCH | tGT | tGEQ | tLT | tLEQ | tLSHFT
| tRSHFT | tPLUS | tMINUS | tSTAR2 | tSTAR | tDIVIDE
| tPERCENT | tPOW | tTILDE | tUPLUS | tUMINUS | tAREF
| tASET | tBACK_REF2
reswords: k__LINE__ | k__FILE__ | klBEGIN | klEND | kALIAS | kAND
| kBEGIN | kBREAK | kCASE | kCLASS | kDEF | kDEFINED
| kDO | kELSE | kELSIF | kEND | kENSURE | kFALSE
| kFOR | kIN | kMODULE | kNEXT | kNIL | kNOT
| kOR | kREDO | kRESCUE | kRETRY | kRETURN | kSELF
| kSUPER | kTHEN | kTRUE | kUNDEF | kWHEN | kYIELD
| kIF_MOD | kUNLESS_MOD | kWHILE_MOD | kUNTIL_MOD | kRESCUE_MOD
arg: lhs tEQL arg
{
result = self.node_assign val[0], val[2]
}
| lhs tEQL arg kRESCUE_MOD arg
{
result = self.node_assign val[0], s(:rescue, val[2], s(:resbody, s(:array), val[4]))
# result.line = val[0].line
}
| var_lhs tOP_ASGN arg
{
result = new_op_asgn val
}
| primary_value "[" aref_args tRBRACK tOP_ASGN arg
{
result = s(:op_asgn1, val[0], val[2], val[4].to_sym, val[5])
val[2][0] = :arglist
}
| primary_value tDOT tIDENTIFIER tOP_ASGN arg
{
result = s(:op_asgn2, val[0], :"#{val[2]}=", val[3].to_sym, val[4])
}
| primary_value tDOT tCONSTANT tOP_ASGN arg
{
result = s(:op_asgn2, val[0], :"#{val[2]}=", val[3].to_sym, val[4])
}
| primary_value tCOLON2 tIDENTIFIER tOP_ASGN arg
{
result = s(:op_asgn, val[0], val[4], val[2], val[3])
}
| primary_value tCOLON2 tCONSTANT tOP_ASGN arg
{
yyerror "constant re-assignment"
}
| tCOLON3 tCONSTANT tOP_ASGN arg
{
yyerror "constant re-assignment"
}
| backref tOP_ASGN arg
{
self.backref_assign_error val[0]
}
| arg tDOT2 arg
{
v1, v2 = val[0], val[2]
if v1.node_type == :lit and v2.node_type == :lit and Fixnum === v1.last and Fixnum === v2.last then
result = s(:lit, (v1.last)..(v2.last))
else
result = s(:dot2, v1, v2)
end
}
| arg tDOT3 arg
{
v1, v2 = val[0], val[2]
if v1.node_type == :lit and v2.node_type == :lit and Fixnum === v1.last and Fixnum === v2.last then
result = s(:lit, (v1.last)...(v2.last))
else
result = s(:dot3, v1, v2)
end
}
| arg tPLUS arg
{
result = new_call val[0], :+, s(:arglist, val[2])
}
| arg tMINUS arg
{
result = new_call val[0], :-, s(:arglist, val[2])
}
| arg tSTAR2 arg
{
result = new_call val[0], :*, s(:arglist, val[2])
}
| arg tDIVIDE arg
{
result = new_call val[0], :"/", s(:arglist, val[2])
}
| arg tPERCENT arg
{
result = new_call val[0], :%, s(:arglist, val[2])
}
| arg tPOW arg
{
result = new_call val[0], :**, s(:arglist, val[2])
}
| tUMINUS_NUM tINTEGER tPOW arg
{
result = new_call(new_call(s(:lit, val[1]), :"**", s(:arglist, val[3])), :"-@", s(:arglist))
}
| tUMINUS_NUM tFLOAT tPOW arg
{
result = new_call(new_call(s(:lit, val[1]), :"**", s(:arglist, val[3])), :"-@", s(:arglist))
}
| tUPLUS arg
{
if val[1][0] == :lit then
result = val[1]
else
result = new_call val[1], :"+@", s(:arglist)
end
}
| tUMINUS arg
{
result = new_call val[1], :"-@", s(:arglist)
}
| arg tPIPE arg
{
result = new_call val[0], :"|", s(:arglist, val[2])
}
| arg tCARET arg
{
result = new_call val[0], :"^", s(:arglist, val[2])
}
| arg tAMPER2 arg
{
result = new_call val[0], :"&", s(:arglist, val[2])
}
| arg tCMP arg
{
result = new_call val[0], :"<=>", s(:arglist, val[2])
}
| arg tGT arg
{
result = new_call val[0], :">", s(:arglist, val[2])
}
| arg tGEQ arg
{
result = new_call val[0], :">=", s(:arglist, val[2])
}
| arg tLT arg
{
result = new_call val[0], :"<", s(:arglist, val[2])
}
| arg tLEQ arg
{
result = new_call val[0], :"<=", s(:arglist, val[2])
}
| arg tEQ arg
{
result = new_call val[0], :"==", s(:arglist, val[2])
}
| arg tEQQ arg
{
result = new_call val[0], :"===", s(:arglist, val[2])
}
| arg tNEQ arg
{
val[0] = value_expr val[0] # TODO: port call_op and clean these
val[2] = value_expr val[2]
result = s(:not, new_call(val[0], :"==", s(:arglist, val[2])))
}
| arg tMATCH arg
{
result = self.get_match_node val[0], val[2]
}
| arg tNMATCH arg
{
result = s(:not, self.get_match_node(val[0], val[2]))
}
| tBANG arg
{
result = s(:not, val[1])
}
| tTILDE arg
{
val[2] = value_expr val[2]
result = new_call val[1], :"~", s(:arglist)
}
| arg tLSHFT arg
{
val[0] = value_expr val[0]
val[2] = value_expr val[2]
result = new_call val[0], :"\<\<", s(:arglist, val[2])
}
| arg tRSHFT arg
{
val[0] = value_expr val[0]
val[2] = value_expr val[2]
result = new_call val[0], :">>", s(:arglist, val[2])
}
| arg tANDOP arg
{
result = logop(:and, val[0], val[2])
}
| arg tOROP arg
{
result = logop(:or, val[0], val[2])
}
| kDEFINED opt_nl arg
{
result = s(:defined, val[2])
}
| arg tEH arg tCOLON arg
{
result = s(:if, val[0], val[2], val[4])
}
| primary
arg_value: arg
{
result = value_expr(val[0])
}
aref_args: none
| command opt_nl
{
warning 'parenthesize argument(s) for future version'
result = s(:array, val[0])
}
| args trailer
{
result = val[0]
}
| args tCOMMA tSTAR arg opt_nl
{
result = self.arg_concat val[0], val[3]
}
| assocs trailer
{
result = s(:array, s(:hash, *val[0].values))
}
| tSTAR arg opt_nl
{
result = s(:array, s(:splat, val[1]))
}
paren_args: tLPAREN2 none tRPAREN
{
result = val[1]
}
| tLPAREN2 call_args opt_nl tRPAREN
{
result = val[1]
}
| tLPAREN2 block_call opt_nl tRPAREN
{
warning "parenthesize argument(s) for future version"
result = s(:array, val[1])
}
| tLPAREN2 args tCOMMA block_call opt_nl tRPAREN
{
warning "parenthesize argument(s) for future version"
result = val[1].add val[3]
}
opt_paren_args: none
| paren_args
call_args: command
{
warning "parenthesize argument(s) for future version"
result = s(:array, val[0])
}
| args opt_block_arg
{
result = self.arg_blk_pass val[0], val[1]
}
| args tCOMMA tSTAR arg_value opt_block_arg
{
result = self.arg_concat val[0], val[3]
result = self.arg_blk_pass result, val[4]
}
| assocs opt_block_arg
{
result = s(:array, s(:hash, *val[0].values))
result = self.arg_blk_pass result, val[1]
}
| assocs tCOMMA tSTAR arg_value opt_block_arg
{
result = self.arg_concat s(:array, s(:hash, *val[0].values)), val[3]
result = self.arg_blk_pass result, val[4]
}
| args tCOMMA assocs opt_block_arg
{
result = val[0] << s(:hash, *val[2].values)
result = self.arg_blk_pass result, val[3]
}
| args tCOMMA assocs tCOMMA tSTAR arg opt_block_arg
{
val[0] << s(:hash, *val[2].values)
result = self.arg_concat val[0], val[5]
result = self.arg_blk_pass result, val[6]
}
| tSTAR arg_value opt_block_arg
{
result = self.arg_blk_pass s(:splat, val[1]), val[2]
}
| block_arg
call_args2: arg_value tCOMMA args opt_block_arg
{
args = self.list_prepend val[0], val[2]
result = self.arg_blk_pass args, val[3]
}
| arg_value tCOMMA block_arg
{
result = self.arg_blk_pass val[0], val[2]
}
| arg_value tCOMMA tSTAR arg_value opt_block_arg
{
result = self.arg_concat s(:array, val[0]), val[3]
result = self.arg_blk_pass result, val[4]
}
| arg_value tCOMMA args tCOMMA tSTAR arg_value opt_block_arg
{
result = self.arg_concat s(:array, val[0], s(:hash, *val[2].values)), val[5]
result = self.arg_blk_pass result, val[6]
}
| assocs opt_block_arg
{
result = s(:array, s(:hash, *val[0].values))
result = self.arg_blk_pass result, val[1]
}
| assocs tCOMMA tSTAR arg_value opt_block_arg
{
result = s(:array, s(:hash, *val[0].values), val[3])
result = self.arg_blk_pass result, val[4]
}
| arg_value tCOMMA assocs opt_block_arg
{
result = s(:array, val[0], s(:hash, *val[2].values))
result = self.arg_blk_pass result, val[3]
}
| arg_value tCOMMA args tCOMMA assocs opt_block_arg
{
result = s(:array, val[0]).add_all(val[2]).add(s(:hash, *val[4].values))
result = self.arg_blk_pass result, val[5]
}
| arg_value tCOMMA assocs tCOMMA tSTAR arg_value opt_block_arg
{
result = self.arg_concat s(:array, val[0]).add(s(:hash, *val[2].values)), val[5]
result = self.arg_blk_pass result, val[6]
}
| arg_value tCOMMA args tCOMMA assocs tCOMMA tSTAR arg_value opt_block_arg
{
result = self.arg_concat s(:array, val[0]).add_all(val[2]).add(s(:hash, *val[4].values)), val[7]
result = self.arg_blk_pass result, val[8]
}
| tSTAR arg_value opt_block_arg
{
result = self.arg_blk_pass s(:splat, val[1]), val[2]
}
| block_arg
command_args: {
result = lexer.cmdarg.stack.dup
lexer.cmdarg.push true
}
open_args
{
lexer.cmdarg.stack.replace val[0]
result = val[1]
}
open_args: call_args
| tLPAREN_ARG
{
lexer.lex_state = :expr_endarg
}
tRPAREN
{
warning "don't put space before argument parentheses"
result = nil
}
| tLPAREN_ARG call_args2
{
lexer.lex_state = :expr_endarg
}
tRPAREN
{
warning "don't put space before argument parentheses"
result = val[1]
}
block_arg: tAMPER arg_value
{
result = s(:block_pass, val[1])
}
opt_block_arg: tCOMMA block_arg
{
result = val[1]
}
| none_block_pass
args: arg_value
{
result = s(:array, val[0])
}
| args tCOMMA arg_value
{
result = self.list_append val[0], val[2]
}
mrhs: args tCOMMA arg_value
{
result = val[0] << val[2]
}
| args tCOMMA tSTAR arg_value
{
result = self.arg_concat val[0], val[3]
}
| tSTAR arg_value
{
result = s(:splat, val[1])
}
primary: literal
| strings
| xstring
| regexp
| words
| awords
| var_ref
| backref
| tFID
{
result = new_call nil, val[0].to_sym
}
| kBEGIN
{
result = self.lexer.lineno
}
bodystmt kEND
{
unless val[2] then
result = s(:nil)
else
result = s(:begin, val[2])
end
result.line = val[1]
}
| tLPAREN_ARG expr
{
lexer.lex_state = :expr_endarg
}
opt_nl tRPAREN
{
warning "(...) interpreted as grouped expression"
result = val[1]
}
| tLPAREN compstmt tRPAREN
{
result = val[1] || s(:nil)
result.paren = true
}
| primary_value tCOLON2 tCONSTANT
{
result = s(:colon2, val[0], val[2].to_sym)
}
| tCOLON3 tCONSTANT
{
result = s(:colon3, val[1].to_sym)
}
| primary_value "[" aref_args tRBRACK
{
result = new_aref val
}
| tLBRACK aref_args tRBRACK
{
result = val[1] || s(:array)
}
| tLBRACE assoc_list tRCURLY
{
result = s(:hash, *val[1].values)
}
| kRETURN
{
result = s(:return)
}
| kYIELD tLPAREN2 call_args tRPAREN
{
result = new_yield val[2]
}
| kYIELD tLPAREN2 tRPAREN
{
result = new_yield
}
| kYIELD
{
result = new_yield
}
| kDEFINED opt_nl tLPAREN2 expr tRPAREN
{
result = s(:defined, val[3])
}
| operation brace_block
{
oper, iter = val[0], val[1]
call = new_call(nil, oper.to_sym)
iter.insert 1, call
result = iter
call.line ||= iter.line
}
| method_call
| method_call brace_block
{
call, iter = val[0], val[1]