/usr/lib/ruby/vendor_ruby/ruby21_parser.y is in ruby-parser 3.6.2-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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class Ruby21Parser
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 kDO_LAMBDA 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__ k__ENCODING__ tIDENTIFIER tFID tGVAR tIVAR tCONSTANT
tLABEL 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 tLBRACK2 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 tQWORDS_BEG tSTRING_DBEG tSTRING_DVAR tSTRING_END
tSTRING tSYMBOL tNL tEH tCOLON tCOMMA tSPACE tSEMI tLAMBDA
tLAMBEG tDSTAR tCHAR tSYMBOLS_BEG tQSYMBOLS_BEG tSTRING_DEND tUBANG
tRATIONAL tIMAGINARY
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
}
top_compstmt
{
result = new_compstmt val
}
top_compstmt: top_stmts opt_terms
{
result = val[0]
}
top_stmts: none
| top_stmt
| top_stmts terms top_stmt
{
result = self.block_append val[0], val[2]
}
| error top_stmt
top_stmt: stmt
{
result = val[0]
# TODO: remove once I have more confidence this is fixed
# result.each_of_type :call_args do |s|
# debug20 666, s, result
# end
}
| klBEGIN
{
if (self.in_def || self.in_single > 0) then
debug20 1
yyerror "BEGIN in method"
end
self.env.extend
}
tLCURLY top_compstmt tRCURLY
{
result = new_iter s(:preexe), nil, val[3]
}
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]
debug20 2, val, result
}
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], new_resbody(s(:array), val[2]))
}
| klEND tLCURLY compstmt tRCURLY
{
if (self.in_def || self.in_single > 0) then
debug20 3
yyerror "END in method; use at_exit"
end
result = new_iter s(:postexe), nil, val[2]
}
| command_asgn
| 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 tLBRACK2 opt_call_args rbracket 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].to_sym, val[3].to_sym)
}
| primary_value tDOT tCONSTANT tOP_ASGN command_call
{
result = s(:op_asgn, val[0], val[4], val[2].to_sym, val[3].to_sym)
}
| primary_value tCOLON2 tCONSTANT tOP_ASGN command_call
{
result = s(:op_asgn, val[0], val[4], val[2], val[3])
debug20 4, val, result
}
| primary_value tCOLON2 tIDENTIFIER tOP_ASGN command_call
{
result = s(:op_asgn, val[0], val[4], val[2], val[3])
debug20 5, val, result
}
| 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 mrhs_arg
{
result = new_masgn val[0], val[2]
}
| expr
command_asgn: lhs tEQL command_call
{
result = self.node_assign val[0], val[2]
}
| lhs tEQL command_asgn
{
result = self.node_assign val[0], val[2]
}
expr: command_call
| expr kAND expr
{
result = logop(:and, val[0], val[2])
}
| expr kOR expr
{
result = logop(:or, val[0], val[2])
}
| kNOT opt_nl expr
{
result = s(:call, val[2], :"!")
}
| tBANG command_call
{
result = s(:call, val[1], :"!")
}
| arg
expr_value: expr
{
result = value_expr(val[0])
}
command_call: command
| block_command
block_command: block_call
| block_call dot_or_colon operation2 command_args
{
result = new_call val[0], val[2].to_sym, val[3]
}
cmd_brace_block: tLBRACE_ARG
{
self.env.extend(:dynamic)
result = self.lexer.lineno
}
opt_block_param
{
result = nil # self.env.dynamic.keys
}
compstmt tRCURLY
{
result = new_iter nil, val[2], val[4]
result.line = val[1]
self.env.unextend
}
fcall: operation
{
result = new_call nil, val[0].to_sym
}
command: fcall command_args =tLOWEST
{
result = val[0].concat val[1][1..-1] # REFACTOR pattern
}
| fcall command_args cmd_brace_block
{
result = val[0].concat val[1][1..-1]
if val[2] then
block_dup_check result, val[2]
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
{
recv, _, msg, args, block = val
call = new_call recv, msg.to_sym, args
block_dup_check call, block
block.insert 1, call
result = block
}
| 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
{
recv, _, msg, args, block = val
call = new_call recv, msg.to_sym, args
block_dup_check call, block
block.insert 1, call
result = block
}
| kSUPER command_args
{
result = new_super val[1]
}
| kYIELD command_args
{
result = new_yield val[1]
}
| kRETURN call_args
{
line = val[0].last
result = s(:return, ret_args(val[1])).line(line)
}
| kBREAK call_args
{
line = val[0].last
result = s(:break, ret_args(val[1])).line(line)
}
| kNEXT call_args
{
line = val[0].last
result = s(:next, ret_args(val[1])).line(line)
}
mlhs: mlhs_basic
| tLPAREN mlhs_inner rparen
{
result = val[1]
}
mlhs_inner: mlhs_basic
| tLPAREN mlhs_inner rparen
{
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 mlhs_node tCOMMA mlhs_post
{
ary1, _, splat, _, ary2 = val
result = list_append ary1, s(:splat, splat)
result.concat ary2[1..-1]
result = s(:masgn, result)
}
| mlhs_head tSTAR
{
result = s(:masgn, val[0] << s(:splat))
}
| mlhs_head tSTAR tCOMMA mlhs_post
{
ary = list_append val[0], s(:splat)
ary.concat val[3][1..-1]
result = s(:masgn, ary)
}
| tSTAR mlhs_node
{
result = s(:masgn, s(:array, s(:splat, val[1])))
}
| tSTAR mlhs_node tCOMMA mlhs_post
{
ary = s(:array, s(:splat, val[1]))
ary.concat val[3][1..-1]
result = s(:masgn, ary)
}
| tSTAR
{
result = s(:masgn, s(:array, s(:splat)))
}
| tSTAR tCOMMA mlhs_post
{
result = s(:masgn, s(:array, s(:splat), *val[2][1..-1]))
}
mlhs_item: mlhs_node
| tLPAREN mlhs_inner rparen
{
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_post: mlhs_item
{
result = s(:array, val[0])
}
| mlhs_post tCOMMA mlhs_item
{
result = list_append val[0], val[2]
}
mlhs_node: user_variable
{
result = self.assignable val[0]
}
| keyword_variable
{
result = self.assignable val[0]
}
| primary_value tLBRACK2 opt_call_args rbracket
{
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
debug20 7
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
debug20 8
yyerror "dynamic constant assignment"
end
result = s(:const, nil, s(:colon3, val[1].to_sym))
}
| backref
{
self.backref_assign_error val[0]
}
lhs: user_variable
{
result = self.assignable val[0]
}
| keyword_variable
{
result = self.assignable val[0]
debug20 9, val, result
}
| primary_value tLBRACK2 opt_call_args rbracket
{
result = self.aryset val[0], val[2]
}
| primary_value tDOT tIDENTIFIER # REFACTOR
{
result = s(:attrasgn, val[0], :"#{val[2]}=")
}
| primary_value tCOLON2 tIDENTIFIER
{
result = s(:attrasgn, val[0], :"#{val[2]}=")
}
| primary_value tDOT tCONSTANT # REFACTOR?
{
result = s(:attrasgn, val[0], :"#{val[2]}=")
}
| primary_value tCOLON2 tCONSTANT
{
if (self.in_def || self.in_single > 0) then
debug20 10
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
debug20 11
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]
}
fsym: fname | symbol
fitem: fsym
{
result = s(:lit, val[0].to_sym)
}
| dsym
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 | tNMATCH | tGT | tGEQ | tLT | tLEQ
| tNEQ | tLSHFT | tRSHFT | tPLUS | tMINUS | tSTAR2
| tSTAR | tDIVIDE | tPERCENT | tPOW | tDSTAR | tBANG | tTILDE
| tUPLUS | tUMINUS | tAREF | tASET | tBACK_REF2
reswords: k__LINE__ | k__FILE__ | k__ENCODING__ | 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 | kUNLESS | kWHILE
| kUNTIL
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], new_resbody(s(:array), val[4]))
}
| var_lhs tOP_ASGN arg
{
result = new_op_asgn val
}
| var_lhs tOP_ASGN arg kRESCUE_MOD arg
{
result = new_op_asgn val
result = s(:rescue, result, new_resbody(s(:array), val[4]))
}
| primary_value tLBRACK2 opt_call_args rbracket tOP_ASGN arg
{
val[2][0] = :arglist if val[2]
result = s(:op_asgn1, val[0], val[2], val[4].to_sym, val[5])
}
| 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].to_sym, val[3].to_sym)
}
| 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], :+, argl(val[2])
}
| arg tMINUS arg
{
result = new_call val[0], :-, argl(val[2])
}
| arg tSTAR2 arg # TODO: rename
{
result = new_call val[0], :*, argl(val[2])
}
| arg tDIVIDE arg
{
result = new_call val[0], :"/", argl(val[2])
}
| arg tPERCENT arg
{
result = new_call val[0], :"%", argl(val[2])
}
| arg tPOW arg
{
result = new_call val[0], :**, argl(val[2])
}
| tUMINUS_NUM simple_numeric tPOW arg
{
result = new_call(new_call(s(:lit, val[1]), :"**", argl(val[3])), :"-@")
}
| tUPLUS arg
{
result = new_call val[1], :"+@"
}
| tUMINUS arg
{
result = new_call val[1], :"-@"
}
| arg tPIPE arg
{
result = new_call val[0], :"|", argl(val[2])
}
| arg tCARET arg
{
result = new_call val[0], :"^", argl(val[2])
}
| arg tAMPER2 arg
{
result = new_call val[0], :"&", argl(val[2])
}
| arg tCMP arg
{
result = new_call val[0], :"<=>", argl(val[2])
}
| arg tGT arg
{
result = new_call val[0], :">", argl(val[2])
}
| arg tGEQ arg
{
result = new_call val[0], :">=", argl(val[2])
}
| arg tLT arg
{
result = new_call val[0], :"<", argl(val[2])
}
| arg tLEQ arg
{
result = new_call val[0], :"<=", argl(val[2])
}
| arg tEQ arg
{
result = new_call val[0], :"==", argl(val[2])
}
| arg tEQQ arg
{
result = new_call val[0], :"===", argl(val[2])
}
| arg tNEQ arg
{
result = new_call val[0], :"!=", argl(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 = new_call val[1], :"!"
}
| tTILDE arg
{
result = new_call value_expr(val[1]), :"~"
}
| arg tLSHFT arg
{
val[0] = value_expr val[0]
val[2] = value_expr val[2]
result = new_call val[0], :"\<\<", argl(val[2])
}
| arg tRSHFT arg
{
val[0] = value_expr val[0]
val[2] = value_expr val[2]
result = new_call val[0], :">>", argl(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 opt_nl tCOLON arg
{
result = s(:if, val[0], val[2], val[5])
}
| primary
arg_value: arg
{
result = value_expr(val[0])
}
aref_args: none
| args trailer
{
result = args [val[0]]
}
| args tCOMMA assocs trailer
{
result = args [val[0], array_to_hash(val[2])]
}
| assocs trailer
{
result = args [array_to_hash(val[0])]
}
paren_args: tLPAREN2 opt_call_args rparen
{
result = val[1]
}
opt_paren_args: none
| paren_args
opt_call_args: none
{
result = val[0]
}
| call_args
{
result = val[0]
}
| args tCOMMA
{
result = args val
}
| args tCOMMA assocs tCOMMA
{
result = args [val[0], array_to_hash(val[2])]
}
| assocs tCOMMA
{
result = args [array_to_hash(val[0])]
}
call_args: command
{
warning "parenthesize argument(s) for future version"
result = call_args val
}
| args opt_block_arg
{
result = call_args val
result = self.arg_blk_pass val[0], val[1]
}
| assocs opt_block_arg
{
result = call_args [array_to_hash(val[0])]
result = self.arg_blk_pass result, val[1]
}
| args tCOMMA assocs opt_block_arg
{
result = call_args [val[0], array_to_hash(val[2])]
result = self.arg_blk_pass result, val[3]
}
| block_arg
{
result = call_args val
}
command_args: {
result = lexer.cmdarg.stack.dup # TODO: smell?
lexer.cmdarg.push true
}
call_args
{
lexer.cmdarg.stack.replace val[0]
result = val[1]
}
block_arg: tAMPER arg_value
{
result = s(:block_pass, val[1])
}
opt_block_arg: tCOMMA block_arg
{
result = val[1]
}
| none
args: arg_value
{
result = s(:array, val[0])
}
| tSTAR arg_value
{
result = s(:array, s(:splat, val[1]))
}
| args tCOMMA arg_value
{
result = self.list_append val[0], val[2]
}
| args tCOMMA tSTAR arg_value
{
result = self.list_append val[0], s(:splat, val[3])
}
mrhs_arg: mrhs
{
result = new_masgn_arg val[0]
}
| arg_value
{
result = new_masgn_arg val[0], :wrap
}
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
| qwords
| symbols
| qsymbols
| 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 rparen
{
debug20 13, val, result
}
| tLPAREN_ARG expr
{
lexer.lex_state = :expr_endarg
}
rparen
{
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)
}
| tLBRACK aref_args tRBRACK
{
result = val[1] || s(:array)
result[0] = :array # aref_args is :args
}
| tLBRACE assoc_list tRCURLY
{
result = s(:hash, *val[1].values) # TODO: array_to_hash?
}
| kRETURN
{
result = s(:return)
}
| kYIELD tLPAREN2 call_args rparen
{
result = new_yield val[2]
}
| kYIELD tLPAREN2 rparen
{
result = new_yield
}
| kYIELD
{
result = new_yield
}
| kDEFINED opt_nl tLPAREN2 expr rparen
{
result = s(:defined, val[3])
}
| kNOT tLPAREN2 expr rparen
{
result = s(:call, val[2], :"!")
}
| kNOT tLPAREN2 rparen
{
debug20 14, val, result
}
| fcall brace_block
{
oper, iter = val[0], val[1]
call = oper # FIX
iter.insert 1, call
result = iter
call.line = iter.line
}
| method_call
| method_call brace_block
{
call, iter = val[0], val[1]
block_dup_check call, iter
iter.insert 1, call # FIX
result = iter
}
| tLAMBDA lambda
{
result = val[1] # TODO: fix lineno
}
| kIF expr_value then compstmt if_tail kEND
{
result = new_if val[1], val[3], val[4]
}
| kUNLESS expr_value then compstmt opt_else kEND
{
result = new_if val[1], val[4], val[3]
}
| kWHILE
{
lexer.cond.push true
}
expr_value do
{
lexer.cond.pop
}
compstmt kEND
{
result = new_while val[5], val[2], true
}
| kUNTIL
{
lexer.cond.push true
}
expr_value do
{
lexer.cond.pop
}
compstmt kEND
{
result = new_until val[5], val[2], true
}
| kCASE expr_value opt_terms case_body kEND
{
(_, line), expr, _, body, _ = val
result = new_case expr, body, line
}
| kCASE opt_terms case_body kEND
{
(_, line), _, body, _ = val
result = new_case nil, body, line
}
| kFOR for_var kIN
{
lexer.cond.push true
}
expr_value do
{
lexer.cond.pop
}
compstmt kEND
{
result = new_for val[4], val[1], val[7]
}
| kCLASS
{
result = self.lexer.lineno
}
cpath superclass
{
self.comments.push self.lexer.comments
if (self.in_def || self.in_single > 0) then
yyerror "class definition in method body"
end
self.env.extend
}
bodystmt kEND
{
result = new_class val
self.env.unextend
self.lexer.comments # we don't care about comments in the body
}
| kCLASS tLSHFT
{
result = self.lexer.lineno
}
expr
{
result = self.in_def
self.in_def = false
}
term
{
result = self.in_single
self.in_single = 0
self.env.extend
}
bodystmt kEND
{
result = new_sclass val
self.env.unextend
self.lexer.comments # we don't care about comments in the body
}
| kMODULE
{
result = self.lexer.lineno
}
cpath
{
self.comments.push self.lexer.comments
yyerror "module definition in method body" if
self.in_def or self.in_single > 0
self.env.extend
}
bodystmt kEND
{
result = new_module val
self.env.unextend
self.lexer.comments # we don't care about comments in the body
}
| kDEF fname
{
result = self.in_def
self.comments.push self.lexer.comments
self.in_def = true
self.env.extend
}
f_arglist bodystmt kEND
{
in_def = val[2]
result = new_defn val
self.env.unextend
self.in_def = in_def
self.lexer.comments # we don't care about comments in the body
}
| kDEF singleton dot_or_colon
{
self.comments.push self.lexer.comments
lexer.lex_state = :expr_fname
}
fname
{
self.in_single += 1
self.env.extend
lexer.lex_state = :expr_end # force for args
result = lexer.lineno
}
f_arglist bodystmt kEND
{
result = new_defs val
result[3].line val[5]
self.env.unextend
self.in_single -= 1
self.lexer.comments # we don't care about comments in the body
}
| kBREAK
{
result = s(:break)
}
| kNEXT
{
result = s(:next)
}
| kREDO
{
result = s(:redo)
}
| kRETRY
{
result = s(:retry)
}
primary_value: primary
{
result = value_expr(val[0])
}
# These are really stupid
k_begin: kBEGIN
k_if: kIF
k_unless: kUNLESS
k_while: kWHILE
k_until: kUNTIL
k_case: kCASE
k_for: kFOR
k_class: kCLASS
k_module: kMODULE
k_def: kDEF
k_end: kEND
then: term
| kTHEN
| term kTHEN
do: term
| kDO_COND
if_tail: opt_else
| kELSIF expr_value then compstmt if_tail
{
result = s(:if, val[1], val[3], val[4])
}
opt_else: none
| kELSE compstmt
{
result = val[1]
}
for_var: lhs
| mlhs
{
val[0].delete_at 1 if val[0][1].nil? # HACK
}
f_marg: f_norm_arg
| tLPAREN f_margs rparen
{
result = val[1]
}
f_marg_list: f_marg
{
result = s(:array, val[0])
}
| f_marg_list tCOMMA f_marg
{
result = list_append val[0], val[2]
}
f_margs: f_marg_list
{
args, = val
result = block_var args
}
| f_marg_list tCOMMA tSTAR f_norm_arg
{
args, _, _, splat = val
result = block_var args, "*#{splat}".to_sym
}
| f_marg_list tCOMMA tSTAR f_norm_arg tCOMMA f_marg_list
{
args, _, _, splat, _, args2 = val
result = block_var args, "*#{splat}".to_sym, args2
}
| f_marg_list tCOMMA tSTAR
{
args, _, _ = val
result = block_var args, :*
}
| f_marg_list tCOMMA tSTAR tCOMMA f_marg_list
{
args, _, _, _, args2 = val
result = block_var args, :*, args2
debug20 16, val, result
}
| tSTAR f_norm_arg
{
_, splat = val
result = block_var :"*#{splat}"
}
| tSTAR f_norm_arg tCOMMA f_marg_list
{
_, splat, _, args = val
result = block_var :"*#{splat}", args
debug20 17, val, result
}
| tSTAR
{
result = block_var :*
debug20 18, val, result
}
| tSTAR tCOMMA f_marg_list
{
_, _, args = val
result = block_var :*, args
}
block_args_tail: f_block_kwarg tCOMMA f_kwrest opt_f_block_arg
{
result = call_args val
}
| f_block_kwarg opt_f_block_arg
{
result = call_args val
}
| f_kwrest opt_f_block_arg
{
result = call_args val
}
| f_block_arg
{
result = call_args val
}
opt_block_args_tail: tCOMMA block_args_tail
{
result = args val
}
| none
block_param: f_arg tCOMMA f_block_optarg tCOMMA f_rest_arg opt_block_args_tail
{
result = args val
}
| f_arg tCOMMA f_block_optarg tCOMMA f_rest_arg tCOMMA f_arg opt_block_args_tail
{
result = args val
}
| f_arg tCOMMA f_block_optarg opt_block_args_tail
{
result = args val
}
| f_arg tCOMMA f_block_optarg tCOMMA f_arg opt_block_args_tail
{
result = args val
}
| f_arg tCOMMA f_rest_arg opt_block_args_tail
{
result = args val
}
| f_arg tCOMMA
{
result = args val
}
| f_arg tCOMMA f_rest_arg tCOMMA f_arg opt_block_args_tail
{
result = args val
}
| f_arg opt_block_args_tail
{
result = args val
}
| f_block_optarg tCOMMA f_rest_arg opt_block_args_tail
{
result = args val
}
| f_block_optarg tCOMMA f_rest_arg tCOMMA f_arg opt_block_args_tail
{
result = args val
}
| f_block_optarg opt_block_args_tail
{
result = args val
}
| f_block_optarg tCOMMA f_arg opt_block_args_tail
{
result = args val
}
| f_rest_arg opt_block_args_tail
{
result = args val
}
| f_rest_arg tCOMMA f_arg opt_block_args_tail
{
result = args val
}
| block_args_tail
{
result = args val
}
opt_block_param: none
| block_param_def
block_param_def: tPIPE opt_bv_decl tPIPE
{
result = args val
result = 0 if result == s(:args)
}
| tOROP
{
result = 0
self.lexer.command_start = true
}
| tPIPE block_param opt_bv_decl tPIPE
{
result = args val
}
opt_bv_decl: opt_nl
| opt_nl tSEMI bv_decls opt_nl
{
result = args val
}
bv_decls: bvar
{
result = args val
}
| bv_decls tCOMMA bvar
{
result = args val
}
bvar: tIDENTIFIER
{
result = s(:shadow, val[0].to_sym)
}
| f_bad_arg
lambda: {
self.env.extend :dynamic
result = self.lexer.lineno
result = lexer.lpar_beg
lexer.paren_nest += 1
lexer.lpar_beg = lexer.paren_nest
}
f_larglist lambda_body
{
lpar, args, body = val
lexer.lpar_beg = lpar
args = 0 if args == s(:args)
call = new_call nil, :lambda
result = new_iter call, args, body
self.env.unextend
}
f_larglist: tLPAREN2 f_args opt_bv_decl rparen
{
result = args val
}
| f_args
{
result = val[0]
}
lambda_body: tLAMBEG compstmt tRCURLY
{
result = val[1]
}
| kDO_LAMBDA compstmt kEND
{
result = val[1]
}
do_block: kDO_BLOCK
{
self.env.extend :dynamic
result = self.lexer.lineno
}
opt_block_param
{
result = nil # self.env.dynamic.keys
}
compstmt kEND
{
args = val[2]
body = val[4]
result = new_iter nil, args, body
result.line = val[1]
self.env.unextend
}
block_call: command do_block
{
# TODO:
# if (nd_type($1) == NODE_YIELD) {
# compile_error(PARSER_ARG "block given to yield");
syntax_error "Both block arg and actual block given." if
val[0].block_pass?
val = invert_block_call val if inverted? val
result = val[1]
result.insert 1, val[0]
}
| block_call dot_or_colon operation2 opt_paren_args
{
result = new_call val[0], val[2].to_sym, val[3]
}
| block_call dot_or_colon operation2 opt_paren_args brace_block
{
iter1, _, name, args, iter2 = val
call = new_call iter1, name.to_sym, args
iter2.insert 1, call
result = iter2
}
| block_call dot_or_colon operation2 command_args do_block
{
iter1, _, name, args, iter2 = val
call = new_call iter1, name.to_sym, args
iter2.insert 1, call
result = iter2
}
method_call: fcall
{
result = self.lexer.lineno
}
paren_args
{
args = self.call_args val[2..-1]
result = val[0].concat args[1..-1]
}
| primary_value tDOT operation2 opt_paren_args
{
result = new_call val[0], val[2].to_sym, val[3]
}
| primary_value tCOLON2 operation2 paren_args
{
result = new_call val[0], val[2].to_sym, val[3]
}
| primary_value tCOLON2 operation3
{
result = new_call val[0], val[2].to_sym
}
| primary_value tDOT paren_args
{
result = new_call val[0], :call, val[2]
}
| primary_value tCOLON2 paren_args
{
result = new_call val[0], :call, val[2]
}
| kSUPER paren_args
{
result = new_super val[1]
}
| kSUPER
{
result = s(:zsuper)
}
| primary_value tLBRACK2 opt_call_args rbracket
{
result = new_aref val
}
brace_block: tLCURLY
{
self.env.extend :dynamic
result = self.lexer.lineno
}
opt_block_param
{
result = nil # self.env.dynamic.keys
}
compstmt tRCURLY
{
_, line, args, _, body, _ = val
result = new_iter nil, args, body
result.line = line
self.env.unextend
}
| kDO
{
self.env.extend :dynamic
result = self.lexer.lineno
}
opt_block_param
{
result = nil # self.env.dynamic.keys
}
compstmt kEND
{
_, line, args, _, body, _ = val
result = new_iter nil, args, body
result.line = line
self.env.unextend
}
case_body: kWHEN
{
result = self.lexer.lineno
}
args then compstmt cases
{
result = new_when(val[2], val[4])
result.line = val[1]
result << val[5] if val[5]
}
cases: opt_else | case_body
opt_rescue: kRESCUE exc_list exc_var then compstmt opt_rescue
{
_, klasses, var, _, body, rest = val
klasses ||= s(:array)
klasses << node_assign(var, s(:gvar, :"$!")) if var
result = new_resbody(klasses, body)
result << rest if rest # UGH, rewritten above
}
|
{
result = nil
}
exc_list: arg_value
{
result = s(:array, val[0])
}
| mrhs
| none
exc_var: tASSOC lhs
{
result = val[1]
}
| none
opt_ensure: kENSURE compstmt
{
_, body = val
result = body || s(:nil)
}
| none
literal: numeric
{
result = s(:lit, val[0])
}
| symbol
{
result = s(:lit, val[0])
}
| dsym
strings: string
{
val[0] = s(:dstr, val[0].value) if val[0][0] == :evstr
result = val[0]
}
string: tCHAR
{
debug20 23, val, result
}
| string1
| string string1
{
result = self.literal_concat val[0], val[1]
}
string1: tSTRING_BEG string_contents tSTRING_END
{
result = val[1]
}
| tSTRING
{
result = new_string val
}
xstring: tXSTRING_BEG xstring_contents tSTRING_END
{
result = new_xstring val[1]
}
regexp: tREGEXP_BEG regexp_contents tREGEXP_END
{
result = new_regexp val
}
words: tWORDS_BEG tSPACE tSTRING_END
{
result = s(:array)
}
| tWORDS_BEG word_list tSTRING_END
{
result = val[1]
}
word_list: none
{
result = s(:array)
}
| word_list word tSPACE
{
word = val[1][0] == :evstr ? s(:dstr, "", val[1]) : val[1]
result = val[0].dup << word
}
word: string_content
| word string_content
{
result = self.literal_concat val[0], val[1]
}
symbols: tSYMBOLS_BEG tSPACE tSTRING_END
{
result = s(:array)
}
| tSYMBOLS_BEG symbol_list tSTRING_END
{
result = val[1]
}
symbol_list: none
{
result = s(:array)
}
| symbol_list word tSPACE
{
list, sym, _ = val
case sym[0]
when :dstr then
sym[0] = :dsym
when :str then
sym = s(:lit, sym.last.to_sym)
else
debug20 24
sym = s(:dsym, "", result)
end
result = list.dup << sym
}
qwords: tQWORDS_BEG tSPACE tSTRING_END
{
result = s(:array)
}
| tQWORDS_BEG qword_list tSTRING_END
{
result = val[1]
}
qsymbols: tQSYMBOLS_BEG tSPACE tSTRING_END
{
result = s(:array)
}
| tQSYMBOLS_BEG qsym_list tSTRING_END
{
result = val[1]
}
qword_list: none
{
result = s(:array)
}
| qword_list tSTRING_CONTENT tSPACE
{
result = val[0].dup << s(:str, val[1])
}
qsym_list: none
{
result = s(:array)
}
| qsym_list tSTRING_CONTENT tSPACE
{
result = val[0].dup << s(:lit, val[1].to_sym)
}
string_contents: none
{
result = s(:str, "")
}
| string_contents string_content
{
result = literal_concat(val[0], val[1])
}
xstring_contents: none
{
result = nil
}
| xstring_contents string_content
{
result = literal_concat(val[0], val[1])
}
regexp_contents: none
{
result = nil
}
| regexp_contents string_content
{
result = literal_concat(val[0], val[1])
}
string_content: tSTRING_CONTENT
{
result = new_string val
}
| tSTRING_DVAR
{
result = lexer.lex_strterm
lexer.lex_strterm = nil
lexer.lex_state = :expr_beg
}
string_dvar
{
lexer.lex_strterm = val[1]
result = s(:evstr, val[2])
}
| tSTRING_DBEG
{
result = [lexer.lex_strterm,
lexer.brace_nest,
lexer.string_nest, # TODO: remove
lexer.cond.store,
lexer.cmdarg.store]
lexer.lex_strterm = nil
lexer.brace_nest = 0
lexer.string_nest = 0
lexer.lex_state = :expr_beg
}
compstmt tRCURLY
{
# TODO: tRCURLY -> tSTRING_END
_, memo, stmt, _ = val
lex_strterm, brace_nest, string_nest, oldcond, oldcmdarg = memo
lexer.lex_strterm = lex_strterm
lexer.brace_nest = brace_nest
lexer.string_nest = string_nest
lexer.cond.restore oldcond
lexer.cmdarg.restore oldcmdarg
case stmt
when Sexp then
case stmt[0]
when :str, :dstr, :evstr then
result = stmt
else
result = s(:evstr, stmt)
end
when nil then
result = s(:evstr)
else
debug20 25
raise "unknown string body: #{stmt.inspect}"
end
}
string_dvar: tGVAR { result = s(:gvar, val[0].to_sym) }
| tIVAR { result = s(:ivar, val[0].to_sym) }
| tCVAR { result = s(:cvar, val[0].to_sym) }
| backref
symbol: tSYMBEG sym
{
lexer.lex_state = :expr_end
result = val[1].to_sym
}
| tSYMBOL
{
result = val[0].to_sym
}
sym: fname | tIVAR | tGVAR | tCVAR
dsym: tSYMBEG xstring_contents tSTRING_END
{
lexer.lex_state = :expr_end
result = val[1]
result ||= s(:str, "")
case result[0]
when :dstr then
result[0] = :dsym
when :str then
result = s(:lit, result.last.to_sym)
when :evstr then
result = s(:dsym, "", result)
else
debug20 26, val, result
end
}
numeric: simple_numeric
| tUMINUS_NUM simple_numeric
{
result = -val[1]
}
simple_numeric: tINTEGER
| tFLOAT
| tRATIONAL
| tIMAGINARY
user_variable: tIDENTIFIER
| tIVAR
| tGVAR
| tCONSTANT
| tCVAR
keyword_variable: kNIL { result = s(:nil) }
| kSELF { result = s(:self) }
| kTRUE { result = s(:true) }
| kFALSE { result = s(:false) }
| k__FILE__ { result = s(:str, self.file) }
| k__LINE__ { result = s(:lit, lexer.lineno) }
| k__ENCODING__
{
result =
if defined? Encoding then
s(:colon2, s(:const, :Encoding), :UTF_8)
else
s(:str, "Unsupported!")
end
}
var_ref: user_variable
{
var = val[0]
result = Sexp === var ? var : self.gettable(var)
}
| keyword_variable
{
var = val[0]
result = Sexp === var ? var : self.gettable(var)
}
var_lhs: user_variable
{
result = self.assignable val[0]
}
| keyword_variable
{
result = self.assignable val[0]
debug20 29, val, result
}
backref: tNTH_REF { result = s(:nth_ref, val[0]) }
| tBACK_REF { result = s(:back_ref, val[0]) }
superclass: term
{
result = nil
}
| tLT
{
lexer.lex_state = :expr_beg
}
expr_value term
{
result = val[2]
}
| error term
{
yyerrok
result = nil
debug20 30, val, result
}
f_arglist: tLPAREN2 f_args rparen
{
result = val[1]
self.lexer.lex_state = :expr_beg
self.lexer.command_start = true
}
| f_args term
{
result = val[0]
self.lexer.lex_state = :expr_beg
self.lexer.command_start = true
}
args_tail: f_kwarg tCOMMA f_kwrest opt_f_block_arg
{
result = args val
}
| f_kwarg opt_f_block_arg
{
result = args val
}
| f_kwrest opt_f_block_arg
{
result = args val
}
| f_block_arg
opt_args_tail: tCOMMA args_tail
{
result = val[1]
}
|
{
result = nil
}
f_args: f_arg tCOMMA f_optarg tCOMMA f_rest_arg opt_args_tail
{
result = args val
}
| f_arg tCOMMA f_optarg tCOMMA f_rest_arg tCOMMA f_arg opt_args_tail
{
result = args val
}
| f_arg tCOMMA f_optarg opt_args_tail
{
result = args val
}
| f_arg tCOMMA f_optarg tCOMMA f_arg opt_args_tail
{
result = args val
}
| f_arg tCOMMA f_rest_arg opt_args_tail
{
result = args val
}
| f_arg tCOMMA f_rest_arg tCOMMA f_arg opt_args_tail
{
result = args val
}
| f_arg opt_args_tail
{
result = args val
}
| f_optarg tCOMMA f_rest_arg opt_args_tail
{
result = args val
}
| f_optarg tCOMMA f_rest_arg tCOMMA f_arg opt_args_tail
{
result = args val
}
| f_optarg opt_args_tail
{
result = args val
}
| f_optarg tCOMMA f_arg opt_args_tail
{
result = args val
}
| f_rest_arg opt_args_tail
{
result = args val
}
| f_rest_arg tCOMMA f_arg opt_args_tail
{
result = args val
}
| args_tail
{
result = args val
}
|
{
result = args val
}
f_bad_arg: tCONSTANT
{
yyerror "formal argument cannot be a constant"
}
| tIVAR
{
yyerror "formal argument cannot be an instance variable"
}
| tGVAR
{
yyerror "formal argument cannot be a global variable"
}
| tCVAR
{
yyerror "formal argument cannot be a class variable"
}
f_norm_arg: f_bad_arg
| tIDENTIFIER
{
identifier = val[0].to_sym
self.env[identifier] = :lvar
result = identifier
}
f_arg_item: f_norm_arg
| tLPAREN f_margs rparen
{
result = val[1]
}
f_arg: f_arg_item
{
case val[0]
when Symbol then
result = s(:args)
result << val[0]
when Sexp then
result = val[0]
else
debug20 32
raise "Unknown f_arg type: #{val.inspect}"
end
}
| f_arg tCOMMA f_arg_item
{
list, _, item = val
if list.sexp_type == :args then
result = list
else
result = s(:args, list)
end
result << item
}
f_label: tLABEL
f_kw: f_label arg_value
{
# TODO: call_args
label, _ = val[0] # TODO: fix lineno?
identifier = label.to_sym
self.env[identifier] = :lvar
result = s(:array, s(:kwarg, identifier, val[1]))
}
| f_label
{
label, _ = val[0] # TODO: fix lineno?
identifier = label.to_sym
self.env[identifier] = :lvar
result = s(:array, s(:kwarg, identifier))
}
f_block_kw: f_label primary_value
{
# TODO: call_args
label, _ = val[0] # TODO: fix lineno?
identifier = label.to_sym
self.env[identifier] = :lvar
result = s(:array, s(:kwarg, identifier, val[1]))
}
| f_label
{
raise "fuck 11"
}
f_block_kwarg: f_block_kw
| f_block_kwarg tCOMMA f_block_kw
{
list, _, item = val
result = list << item.last
}
f_kwarg: f_kw
| f_kwarg tCOMMA f_kw
{
result = args val
}
kwrest_mark: tPOW
| tDSTAR
f_kwrest: kwrest_mark tIDENTIFIER
{
result = :"**#{val[1]}"
}
| kwrest_mark
{
debug20 36, val, result
}
f_opt: f_norm_arg tEQL arg_value
{
result = self.assignable val[0], val[2]
# TODO: detect duplicate names
}
f_block_opt: f_norm_arg tEQL primary_value
{
result = self.assignable val[0], val[2]
}
f_block_optarg: f_block_opt
{
result = s(:block, val[0])
}
| f_block_optarg tCOMMA f_block_opt
{
result = val[0]
result << val[2]
}
f_optarg: f_opt
{
result = s(:block, val[0])
}
| f_optarg tCOMMA f_opt
{
result = self.block_append val[0], val[2]
}
restarg_mark: tSTAR2 | tSTAR
f_rest_arg: restarg_mark tIDENTIFIER
{
# TODO: differs from parse.y - needs tests
name = val[1].to_sym
self.assignable name
result = :"*#{name}"
}
| restarg_mark
{
name = :"*"
self.env[name] = :lvar
result = name
}
blkarg_mark: tAMPER2 | tAMPER
f_block_arg: blkarg_mark tIDENTIFIER
{
identifier = val[1].to_sym
self.env[identifier] = :lvar
result = "&#{identifier}".to_sym
}
opt_f_block_arg: tCOMMA f_block_arg
{
result = val[1]
}
|
{
result = nil
}
singleton: var_ref
| tLPAREN2
{
lexer.lex_state = :expr_beg
}
expr rparen
{
result = val[2]
yyerror "Can't define single method for literals." if
result[0] == :lit
}
assoc_list: none # [!nil]
{
result = s(:array)
}
| assocs trailer # [!nil]
{
result = val[0]
}
assocs: assoc
| assocs tCOMMA assoc
{
list = val[0].dup
more = val[2][1..-1]
list.push(*more) unless more.empty?
result = list
result[0] = :hash
# TODO: shouldn't this be a hash?
}
assoc: arg_value tASSOC arg_value
{
result = s(:array, val[0], val[2])
}
| tLABEL arg_value
{
result = s(:array, s(:lit, val[0][0].to_sym), val[1])
}
| tDSTAR arg_value
{
result = s(:kwsplat, val[1])
}
operation: tIDENTIFIER | tCONSTANT | tFID
operation2: tIDENTIFIER | tCONSTANT | tFID | op
operation3: tIDENTIFIER | tFID | op
dot_or_colon: tDOT | tCOLON2
opt_terms: | terms
opt_nl: | tNL
rparen: opt_nl tRPAREN
rbracket: opt_nl tRBRACK
trailer: | tNL | tCOMMA
term: tSEMI { yyerrok }
| tNL
terms: term
| terms tSEMI { yyerrok }
none: { result = nil; }
end
---- inner
require "ruby_lexer"
require "ruby_parser_extras"
# :stopdoc:
# Local Variables: **
# racc-token-length-max:14 **
# End: **
|