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2019-05-13 08:25:22 -04:00
# Copyright (c) 2013 Peter Zotov <whitequark@whitequark.org>
#
# Parts of the source are derived from ruby_parser:
# Copyright (c) Ryan Davis, seattle.rb
#
# MIT License
#
# Permission is hereby granted, free of charge, to any person obtaining
# a copy of this software and associated documentation files (the
# "Software"), to deal in the Software without restriction, including
# without limitation the rights to use, copy, modify, merge, publish,
# distribute, sublicense, and/or sell copies of the Software, and to
# permit persons to whom the Software is furnished to do so, subject to
# the following conditions:
#
# The above copyright notice and this permission notice shall be
# included in all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
# LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
# OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
# WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
class Parser::Ruby20
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
tDSTAR tPLUS tMINUS tLT tGT tPIPE tBANG tCARET tLCURLY tRCURLY
tBACK_REF2 tSYMBEG tSTRING_BEG tXSTRING_BEG tREGEXP_BEG tREGEXP_OPT
tWORDS_BEG tQWORDS_BEG tSYMBOLS_BEG tQSYMBOLS_BEG tSTRING_DBEG
tSTRING_DVAR tSTRING_END tSTRING_DEND tSTRING tSYMBOL
tNL tEH tCOLON tCOMMA tSPACE tSEMI tLAMBDA tLAMBEG tCHARACTER
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: top_compstmt
top_compstmt: top_stmts opt_terms
{
result = @builder.compstmt(val[0])
}
top_stmts: # nothing
{
result = []
}
| top_stmt
{
result = [ val[0] ]
}
| top_stmts terms top_stmt
{
result = val[0] << val[2]
}
| error top_stmt
{
result = [ val[1] ]
}
top_stmt: stmt
| klBEGIN tLCURLY top_compstmt tRCURLY
{
result = @builder.preexe(val[0], val[1], val[2], val[3])
}
bodystmt: compstmt opt_rescue opt_else opt_ensure
{
rescue_bodies = val[1]
else_t, else_ = val[2]
ensure_t, ensure_ = val[3]
if rescue_bodies.empty? && !else_.nil?
diagnostic :warning, :useless_else, nil, else_t
end
result = @builder.begin_body(val[0],
rescue_bodies,
else_t, else_,
ensure_t, ensure_)
}
compstmt: stmts opt_terms
{
result = @builder.compstmt(val[0])
}
stmts: # nothing
{
result = []
}
| stmt_or_begin
{
result = [ val[0] ]
}
| stmts terms stmt_or_begin
{
result = val[0] << val[2]
}
| error stmt
{
result = [ val[1] ]
}
stmt_or_begin: stmt
| klBEGIN tLCURLY top_compstmt tRCURLY
{
if in_def?
diagnostic :error, :begin_in_method, nil, val[0]
end
result = @builder.preexe(val[0], val[1], val[2], val[3])
}
stmt: kALIAS fitem
{
@lexer.state = :expr_fname
}
fitem
{
result = @builder.alias(val[0], val[1], val[3])
}
| kALIAS tGVAR tGVAR
{
result = @builder.alias(val[0],
@builder.gvar(val[1]),
@builder.gvar(val[2]))
}
| kALIAS tGVAR tBACK_REF
{
result = @builder.alias(val[0],
@builder.gvar(val[1]),
@builder.back_ref(val[2]))
}
| kALIAS tGVAR tNTH_REF
{
diagnostic :error, :nth_ref_alias, nil, val[2]
}
| kUNDEF undef_list
{
result = @builder.undef_method(val[0], val[1])
}
| stmt kIF_MOD expr_value
{
result = @builder.condition_mod(val[0], nil,
val[1], val[2])
}
| stmt kUNLESS_MOD expr_value
{
result = @builder.condition_mod(nil, val[0],
val[1], val[2])
}
| stmt kWHILE_MOD expr_value
{
result = @builder.loop_mod(:while, val[0], val[1], val[2])
}
| stmt kUNTIL_MOD expr_value
{
result = @builder.loop_mod(:until, val[0], val[1], val[2])
}
| stmt kRESCUE_MOD stmt
{
rescue_body = @builder.rescue_body(val[1],
nil, nil, nil,
nil, val[2])
result = @builder.begin_body(val[0], [ rescue_body ])
}
| klEND tLCURLY compstmt tRCURLY
{
result = @builder.postexe(val[0], val[1], val[2], val[3])
}
| command_asgn
| mlhs tEQL command_call
{
result = @builder.multi_assign(val[0], val[1], val[2])
}
| var_lhs tOP_ASGN command_call
{
result = @builder.op_assign(val[0], val[1], val[2])
}
| primary_value tLBRACK2 opt_call_args rbracket tOP_ASGN command_call
{
result = @builder.op_assign(
@builder.index(
val[0], val[1], val[2], val[3]),
val[4], val[5])
}
| primary_value tDOT tIDENTIFIER tOP_ASGN command_call
{
result = @builder.op_assign(
@builder.call_method(
val[0], val[1], val[2]),
val[3], val[4])
}
| primary_value tDOT tCONSTANT tOP_ASGN command_call
{
result = @builder.op_assign(
@builder.call_method(
val[0], val[1], val[2]),
val[3], val[4])
}
| primary_value tCOLON2 tCONSTANT tOP_ASGN command_call
{
result = @builder.op_assign(
@builder.call_method(
val[0], val[1], val[2]),
val[3], val[4])
}
| primary_value tCOLON2 tIDENTIFIER tOP_ASGN command_call
{
result = @builder.op_assign(
@builder.call_method(
val[0], val[1], val[2]),
val[3], val[4])
}
| backref tOP_ASGN command_call
{
@builder.op_assign(val[0], val[1], val[2])
}
| lhs tEQL mrhs
{
result = @builder.assign(val[0], val[1],
@builder.array(nil, val[2], nil))
}
| mlhs tEQL arg_value
{
result = @builder.multi_assign(val[0], val[1], val[2])
}
| mlhs tEQL mrhs
{
result = @builder.multi_assign(val[0], val[1],
@builder.array(nil, val[2], nil))
}
| expr
command_asgn: lhs tEQL command_call
{
result = @builder.assign(val[0], val[1], val[2])
}
| lhs tEQL command_asgn
{
result = @builder.assign(val[0], val[1], val[2])
}
expr: command_call
| expr kAND expr
{
result = @builder.logical_op(:and, val[0], val[1], val[2])
}
| expr kOR expr
{
result = @builder.logical_op(:or, val[0], val[1], val[2])
}
| kNOT opt_nl expr
{
result = @builder.not_op(val[0], nil, val[2], nil)
}
| tBANG command_call
{
result = @builder.not_op(val[0], nil, val[1], nil)
}
| arg
expr_value: expr
command_call: command
| block_command
block_command: block_call
| block_call dot_or_colon operation2 command_args
{
result = @builder.call_method(val[0], val[1], val[2],
nil, val[3], nil)
}
cmd_brace_block: tLBRACE_ARG
{
@static_env.extend_dynamic
}
opt_block_param compstmt tRCURLY
{
result = [ val[0], val[2], val[3], val[4] ]
@static_env.unextend
}
fcall: operation
command: fcall command_args =tLOWEST
{
result = @builder.call_method(nil, nil, val[0],
nil, val[1], nil)
}
| fcall command_args cmd_brace_block
{
method_call = @builder.call_method(nil, nil, val[0],
nil, val[1], nil)
begin_t, args, body, end_t = val[2]
result = @builder.block(method_call,
begin_t, args, body, end_t)
}
| primary_value tDOT operation2 command_args =tLOWEST
{
result = @builder.call_method(val[0], val[1], val[2],
nil, val[3], nil)
}
| primary_value tDOT operation2 command_args cmd_brace_block
{
method_call = @builder.call_method(val[0], val[1], val[2],
nil, val[3], nil)
begin_t, args, body, end_t = val[4]
result = @builder.block(method_call,
begin_t, args, body, end_t)
}
| primary_value tCOLON2 operation2 command_args =tLOWEST
{
result = @builder.call_method(val[0], val[1], val[2],
nil, val[3], nil)
}
| primary_value tCOLON2 operation2 command_args cmd_brace_block
{
method_call = @builder.call_method(val[0], val[1], val[2],
nil, val[3], nil)
begin_t, args, body, end_t = val[4]
result = @builder.block(method_call,
begin_t, args, body, end_t)
}
| kSUPER command_args
{
result = @builder.keyword_cmd(:super, val[0],
nil, val[1], nil)
}
| kYIELD command_args
{
result = @builder.keyword_cmd(:yield, val[0],
nil, val[1], nil)
}
| kRETURN call_args
{
result = @builder.keyword_cmd(:return, val[0],
nil, val[1], nil)
}
| kBREAK call_args
{
result = @builder.keyword_cmd(:break, val[0],
nil, val[1], nil)
}
| kNEXT call_args
{
result = @builder.keyword_cmd(:next, val[0],
nil, val[1], nil)
}
mlhs: mlhs_basic
{
result = @builder.multi_lhs(nil, val[0], nil)
}
| tLPAREN mlhs_inner rparen
{
result = @builder.begin(val[0], val[1], val[2])
}
mlhs_inner: mlhs_basic
{
result = @builder.multi_lhs(nil, val[0], nil)
}
| tLPAREN mlhs_inner rparen
{
result = @builder.multi_lhs(val[0], val[1], val[2])
}
mlhs_basic: mlhs_head
| mlhs_head mlhs_item
{
result = val[0].
push(val[1])
}
| mlhs_head tSTAR mlhs_node
{
result = val[0].
push(@builder.splat(val[1], val[2]))
}
| mlhs_head tSTAR mlhs_node tCOMMA mlhs_post
{
result = val[0].
push(@builder.splat(val[1], val[2])).
concat(val[4])
}
| mlhs_head tSTAR
{
result = val[0].
push(@builder.splat(val[1]))
}
| mlhs_head tSTAR tCOMMA mlhs_post
{
result = val[0].
push(@builder.splat(val[1])).
concat(val[3])
}
| tSTAR mlhs_node
{
result = [ @builder.splat(val[0], val[1]) ]
}
| tSTAR mlhs_node tCOMMA mlhs_post
{
result = [ @builder.splat(val[0], val[1]),
*val[3] ]
}
| tSTAR
{
result = [ @builder.splat(val[0]) ]
}
| tSTAR tCOMMA mlhs_post
{
result = [ @builder.splat(val[0]),
*val[2] ]
}
mlhs_item: mlhs_node
| tLPAREN mlhs_inner rparen
{
result = @builder.begin(val[0], val[1], val[2])
}
mlhs_head: mlhs_item tCOMMA
{
result = [ val[0] ]
}
| mlhs_head mlhs_item tCOMMA
{
result = val[0] << val[1]
}
mlhs_post: mlhs_item
{
result = [ val[0] ]
}
| mlhs_post tCOMMA mlhs_item
{
result = val[0] << val[2]
}
mlhs_node: user_variable
{
result = @builder.assignable(val[0])
}
| keyword_variable
{
result = @builder.assignable(val[0])
}
| primary_value tLBRACK2 opt_call_args rbracket
{
result = @builder.index_asgn(val[0], val[1], val[2], val[3])
}
| primary_value tDOT tIDENTIFIER
{
result = @builder.attr_asgn(val[0], val[1], val[2])
}
| primary_value tCOLON2 tIDENTIFIER
{
result = @builder.attr_asgn(val[0], val[1], val[2])
}
| primary_value tDOT tCONSTANT
{
result = @builder.attr_asgn(val[0], val[1], val[2])
}
| primary_value tCOLON2 tCONSTANT
{
result = @builder.assignable(
@builder.const_fetch(val[0], val[1], val[2]))
}
| tCOLON3 tCONSTANT
{
result = @builder.assignable(
@builder.const_global(val[0], val[1]))
}
| backref
{
result = @builder.assignable(val[0])
}
lhs: user_variable
{
result = @builder.assignable(val[0])
}
| keyword_variable
{
result = @builder.assignable(val[0])
}
| primary_value tLBRACK2 opt_call_args rbracket
{
result = @builder.index_asgn(val[0], val[1], val[2], val[3])
}
| primary_value tDOT tIDENTIFIER
{
result = @builder.attr_asgn(val[0], val[1], val[2])
}
| primary_value tCOLON2 tIDENTIFIER
{
result = @builder.attr_asgn(val[0], val[1], val[2])
}
| primary_value tDOT tCONSTANT
{
result = @builder.attr_asgn(val[0], val[1], val[2])
}
| primary_value tCOLON2 tCONSTANT
{
result = @builder.assignable(
@builder.const_fetch(val[0], val[1], val[2]))
}
| tCOLON3 tCONSTANT
{
result = @builder.assignable(
@builder.const_global(val[0], val[1]))
}
| backref
{
result = @builder.assignable(val[0])
}
cname: tIDENTIFIER
{
diagnostic :error, :module_name_const, nil, val[0]
}
| tCONSTANT
cpath: tCOLON3 cname
{
result = @builder.const_global(val[0], val[1])
}
| cname
{
result = @builder.const(val[0])
}
| primary_value tCOLON2 cname
{
result = @builder.const_fetch(val[0], val[1], val[2])
}
fname: tIDENTIFIER | tCONSTANT | tFID
| op
| reswords
fsym: fname
{
result = @builder.symbol(val[0])
}
| symbol
fitem: fsym
| dsym
undef_list: fitem
{
result = [ val[0] ]
}
| undef_list tCOMMA
{
@lexer.state = :expr_fname
}
fitem
{
result = 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 | tBANG | tTILDE
| tUPLUS | tUMINUS | tAREF | tASET | tDSTAR | 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 = @builder.assign(val[0], val[1], val[2])
}
| lhs tEQL arg kRESCUE_MOD arg
{
rescue_body = @builder.rescue_body(val[3],
nil, nil, nil,
nil, val[4])
rescue_ = @builder.begin_body(val[2], [ rescue_body ])
result = @builder.assign(val[0], val[1], rescue_)
}
| var_lhs tOP_ASGN arg
{
result = @builder.op_assign(val[0], val[1], val[2])
}
| var_lhs tOP_ASGN arg kRESCUE_MOD arg
{
rescue_body = @builder.rescue_body(val[3],
nil, nil, nil,
nil, val[4])
rescue_ = @builder.begin_body(val[2], [ rescue_body ])
result = @builder.op_assign(val[0], val[1], rescue_)
}
| primary_value tLBRACK2 opt_call_args rbracket tOP_ASGN arg
{
result = @builder.op_assign(
@builder.index(
val[0], val[1], val[2], val[3]),
val[4], val[5])
}
| primary_value tDOT tIDENTIFIER tOP_ASGN arg
{
result = @builder.op_assign(
@builder.call_method(
val[0], val[1], val[2]),
val[3], val[4])
}
| primary_value tDOT tCONSTANT tOP_ASGN arg
{
result = @builder.op_assign(
@builder.call_method(
val[0], val[1], val[2]),
val[3], val[4])
}
| primary_value tCOLON2 tIDENTIFIER tOP_ASGN arg
{
result = @builder.op_assign(
@builder.call_method(
val[0], val[1], val[2]),
val[3], val[4])
}
| primary_value tCOLON2 tCONSTANT tOP_ASGN arg
{
const = @builder.const_op_assignable(
@builder.const_fetch(val[0], val[1], val[2]))
result = @builder.op_assign(const, val[3], val[4])
}
| tCOLON3 tCONSTANT tOP_ASGN arg
{
const = @builder.const_op_assignable(
@builder.const_global(val[0], val[1]))
result = @builder.op_assign(const, val[2], val[3])
}
| backref tOP_ASGN arg
{
result = @builder.op_assign(val[0], val[1], val[2])
}
| arg tDOT2 arg
{
result = @builder.range_inclusive(val[0], val[1], val[2])
}
| arg tDOT3 arg
{
result = @builder.range_exclusive(val[0], val[1], val[2])
}
| arg tPLUS arg
{
result = @builder.binary_op(val[0], val[1], val[2])
}
| arg tMINUS arg
{
result = @builder.binary_op(val[0], val[1], val[2])
}
| arg tSTAR2 arg
{
result = @builder.binary_op(val[0], val[1], val[2])
}
| arg tDIVIDE arg
{
result = @builder.binary_op(val[0], val[1], val[2])
}
| arg tPERCENT arg
{
result = @builder.binary_op(val[0], val[1], val[2])
}
| arg tPOW arg
{
result = @builder.binary_op(val[0], val[1], val[2])
}
| tUMINUS_NUM tINTEGER tPOW arg
{
result = @builder.unary_op(val[0],
@builder.binary_op(
@builder.integer(val[1]),
val[2], val[3]))
}
| tUMINUS_NUM tFLOAT tPOW arg
{
result = @builder.unary_op(val[0],
@builder.binary_op(
@builder.float(val[1]),
val[2], val[3]))
}
| tUPLUS arg
{
result = @builder.unary_op(val[0], val[1])
}
| tUMINUS arg
{
result = @builder.unary_op(val[0], val[1])
}
| arg tPIPE arg
{
result = @builder.binary_op(val[0], val[1], val[2])
}
| arg tCARET arg
{
result = @builder.binary_op(val[0], val[1], val[2])
}
| arg tAMPER2 arg
{
result = @builder.binary_op(val[0], val[1], val[2])
}
| arg tCMP arg
{
result = @builder.binary_op(val[0], val[1], val[2])
}
| arg tGT arg
{
result = @builder.binary_op(val[0], val[1], val[2])
}
| arg tGEQ arg
{
result = @builder.binary_op(val[0], val[1], val[2])
}
| arg tLT arg
{
result = @builder.binary_op(val[0], val[1], val[2])
}
| arg tLEQ arg
{
result = @builder.binary_op(val[0], val[1], val[2])
}
| arg tEQ arg
{
result = @builder.binary_op(val[0], val[1], val[2])
}
| arg tEQQ arg
{
result = @builder.binary_op(val[0], val[1], val[2])
}
| arg tNEQ arg
{
result = @builder.binary_op(val[0], val[1], val[2])
}
| arg tMATCH arg
{
result = @builder.match_op(val[0], val[1], val[2])
}
| arg tNMATCH arg
{
result = @builder.binary_op(val[0], val[1], val[2])
}
| tBANG arg
{
result = @builder.not_op(val[0], nil, val[1], nil)
}
| tTILDE arg
{
result = @builder.unary_op(val[0], val[1])
}
| arg tLSHFT arg
{
result = @builder.binary_op(val[0], val[1], val[2])
}
| arg tRSHFT arg
{
result = @builder.binary_op(val[0], val[1], val[2])
}
| arg tANDOP arg
{
result = @builder.logical_op(:and, val[0], val[1], val[2])
}
| arg tOROP arg
{
result = @builder.logical_op(:or, val[0], val[1], val[2])
}
| kDEFINED opt_nl arg
{
result = @builder.keyword_cmd(:defined?, val[0], nil, [ val[2] ], nil)
}
| arg tEH arg opt_nl tCOLON arg
{
result = @builder.ternary(val[0], val[1],
val[2], val[4], val[5])
}
| primary
arg_value: arg
aref_args: none
| args trailer
| args tCOMMA assocs trailer
{
result = val[0] << @builder.associate(nil, val[2], nil)
}
| assocs trailer
{
result = [ @builder.associate(nil, val[0], nil) ]
}
paren_args: tLPAREN2 opt_call_args rparen
{
result = val
}
opt_paren_args: # nothing
{
result = [ nil, [], nil ]
}
| paren_args
opt_call_args: # nothing
{
result = []
}
| call_args
| args tCOMMA
| args tCOMMA assocs tCOMMA
{
result = val[0] << @builder.associate(nil, val[2], nil)
}
| assocs tCOMMA
{
result = [ @builder.associate(nil, val[0], nil) ]
}
call_args: command
{
result = [ val[0] ]
}
| args opt_block_arg
{
result = val[0].concat(val[1])
}
| assocs opt_block_arg
{
result = [ @builder.associate(nil, val[0], nil) ]
result.concat(val[1])
}
| args tCOMMA assocs opt_block_arg
{
assocs = @builder.associate(nil, val[2], nil)
result = val[0] << assocs
result.concat(val[3])
}
| block_arg
{
result = [ val[0] ]
}
command_args: {
result = @lexer.cmdarg.dup
@lexer.cmdarg.push(true)
}
call_args
{
@lexer.cmdarg = val[0]
result = val[1]
}
block_arg: tAMPER arg_value
{
result = @builder.block_pass(val[0], val[1])
}
opt_block_arg: tCOMMA block_arg
{
result = [ val[1] ]
}
| # nothing
{
result = []
}
args: arg_value
{
result = [ val[0] ]
}
| tSTAR arg_value
{
result = [ @builder.splat(val[0], val[1]) ]
}
| args tCOMMA arg_value
{
result = val[0] << val[2]
}
| args tCOMMA tSTAR arg_value
{
result = val[0] << @builder.splat(val[2], val[3])
}
mrhs: args tCOMMA arg_value
{
result = val[0] << val[2]
}
| args tCOMMA tSTAR arg_value
{
result = val[0] << @builder.splat(val[2], val[3])
}
| tSTAR arg_value
{
result = [ @builder.splat(val[0], val[1]) ]
}
primary: literal
| strings
| xstring
| regexp
| words
| qwords
| symbols
| qsymbols
| var_ref
| backref
| tFID
{
result = @builder.call_method(nil, nil, val[0])
}
| kBEGIN
{
result = @lexer.cmdarg.dup
@lexer.cmdarg.clear
}
bodystmt kEND
{
@lexer.cmdarg = val[1]
result = @builder.begin_keyword(val[0], val[2], val[3])
}
| tLPAREN_ARG
{
result = @lexer.cmdarg.dup
@lexer.cmdarg.clear
}
expr
{
@lexer.state = :expr_endarg
}
opt_nl tRPAREN
{
@lexer.cmdarg = val[1]
result = @builder.begin(val[0], val[2], val[5])
}
| tLPAREN_ARG
{
@lexer.state = :expr_endarg
}
opt_nl tRPAREN
{
result = @builder.begin(val[0], nil, val[3])
}
| tLPAREN compstmt tRPAREN
{
result = @builder.begin(val[0], val[1], val[2])
}
| primary_value tCOLON2 tCONSTANT
{
result = @builder.const_fetch(val[0], val[1], val[2])
}
| tCOLON3 tCONSTANT
{
result = @builder.const_global(val[0], val[1])
}
| tLBRACK aref_args tRBRACK
{
result = @builder.array(val[0], val[1], val[2])
}
| tLBRACE assoc_list tRCURLY
{
result = @builder.associate(val[0], val[1], val[2])
}
| kRETURN
{
result = @builder.keyword_cmd(:return, val[0])
}
| kYIELD tLPAREN2 call_args rparen
{
result = @builder.keyword_cmd(:yield, val[0], val[1], val[2], val[3])
}
| kYIELD tLPAREN2 rparen
{
result = @builder.keyword_cmd(:yield, val[0], val[1], [], val[2])
}
| kYIELD
{
result = @builder.keyword_cmd(:yield, val[0])
}
| kDEFINED opt_nl tLPAREN2 expr rparen
{
result = @builder.keyword_cmd(:defined?, val[0],
val[2], [ val[3] ], val[4])
}
| kNOT tLPAREN2 expr rparen
{
result = @builder.not_op(val[0], val[1], val[2], val[3])
}
| kNOT tLPAREN2 rparen
{
result = @builder.not_op(val[0], val[1], nil, val[2])
}
| fcall brace_block
{
method_call = @builder.call_method(nil, nil, val[0])
begin_t, args, body, end_t = val[1]
result = @builder.block(method_call,
begin_t, args, body, end_t)
}
| method_call
| method_call brace_block
{
begin_t, args, body, end_t = val[1]
result = @builder.block(val[0],
begin_t, args, body, end_t)
}
| tLAMBDA lambda
{
lambda_call = @builder.call_lambda(val[0])
args, (begin_t, body, end_t) = val[1]
result = @builder.block(lambda_call,
begin_t, args, body, end_t)
}
| kIF expr_value then compstmt if_tail kEND
{
else_t, else_ = val[4]
result = @builder.condition(val[0], val[1], val[2],
val[3], else_t,
else_, val[5])
}
| kUNLESS expr_value then compstmt opt_else kEND
{
else_t, else_ = val[4]
result = @builder.condition(val[0], val[1], val[2],
else_, else_t,
val[3], val[5])
}
| kWHILE
{
@lexer.cond.push(true)
}
expr_value do
{
@lexer.cond.pop
}
compstmt kEND
{
result = @builder.loop(:while, val[0], val[2], val[3],
val[5], val[6])
}
| kUNTIL
{
@lexer.cond.push(true)
}
expr_value do
{
@lexer.cond.pop
}
compstmt kEND
{
result = @builder.loop(:until, val[0], val[2], val[3],
val[5], val[6])
}
| kCASE expr_value opt_terms case_body kEND
{
*when_bodies, (else_t, else_body) = *val[3]
result = @builder.case(val[0], val[1],
when_bodies, else_t, else_body,
val[4])
}
| kCASE opt_terms case_body kEND
{
*when_bodies, (else_t, else_body) = *val[2]
result = @builder.case(val[0], nil,
when_bodies, else_t, else_body,
val[3])
}
| kFOR for_var kIN
{
@lexer.cond.push(true)
}
expr_value do
{
@lexer.cond.pop
}
compstmt kEND
{
result = @builder.for(val[0], val[1],
val[2], val[4],
val[5], val[7], val[8])
}
| kCLASS cpath superclass
{
@static_env.extend_static
@lexer.push_cmdarg
}
bodystmt kEND
{
if in_def?
diagnostic :error, :class_in_def, nil, val[0]
end
lt_t, superclass = val[2]
result = @builder.def_class(val[0], val[1],
lt_t, superclass,
val[4], val[5])
@lexer.pop_cmdarg
@static_env.unextend
}
| kCLASS tLSHFT expr term
{
result = @def_level
@def_level = 0
@static_env.extend_static
@lexer.push_cmdarg
}
bodystmt kEND
{
result = @builder.def_sclass(val[0], val[1], val[2],
val[5], val[6])
@lexer.pop_cmdarg
@static_env.unextend
@def_level = val[4]
}
| kMODULE cpath
{
@static_env.extend_static
@lexer.push_cmdarg
}
bodystmt kEND
{
if in_def?
diagnostic :error, :module_in_def, nil, val[0]
end
result = @builder.def_module(val[0], val[1],
val[3], val[4])
@lexer.pop_cmdarg
@static_env.unextend
}
| kDEF fname
{
@def_level += 1
@static_env.extend_static
@lexer.push_cmdarg
}
f_arglist bodystmt kEND
{
result = @builder.def_method(val[0], val[1],
val[3], val[4], val[5])
@lexer.pop_cmdarg
@static_env.unextend
@def_level -= 1
}
| kDEF singleton dot_or_colon
{
@lexer.state = :expr_fname
}
fname
{
@def_level += 1
@static_env.extend_static
@lexer.push_cmdarg
}
f_arglist bodystmt kEND
{
result = @builder.def_singleton(val[0], val[1], val[2],
val[4], val[6], val[7], val[8])
@lexer.pop_cmdarg
@static_env.unextend
@def_level -= 1
}
| kBREAK
{
result = @builder.keyword_cmd(:break, val[0])
}
| kNEXT
{
result = @builder.keyword_cmd(:next, val[0])
}
| kREDO
{
result = @builder.keyword_cmd(:redo, val[0])
}
| kRETRY
{
result = @builder.keyword_cmd(:retry, val[0])
}
primary_value: primary
then: term
| kTHEN
| term kTHEN
{
result = val[1]
}
do: term
| kDO_COND
if_tail: opt_else
| kELSIF expr_value then compstmt if_tail
{
else_t, else_ = val[4]
result = [ val[0],
@builder.condition(val[0], val[1], val[2],
val[3], else_t,
else_, nil),
]
}
opt_else: none
| kELSE compstmt
{
result = val
}
for_var: lhs
| mlhs
f_marg: f_norm_arg
{
@static_env.declare val[0][0]
result = @builder.arg(val[0])
}
| tLPAREN f_margs rparen
{
result = @builder.multi_lhs(val[0], val[1], val[2])
}
f_marg_list: f_marg
{
result = [ val[0] ]
}
| f_marg_list tCOMMA f_marg
{
result = val[0] << val[2]
}
f_margs: f_marg_list
| f_marg_list tCOMMA tSTAR f_norm_arg
{
@static_env.declare val[3][0]
result = val[0].
push(@builder.restarg(val[2], val[3]))
}
| f_marg_list tCOMMA tSTAR f_norm_arg tCOMMA f_marg_list
{
@static_env.declare val[3][0]
result = val[0].
push(@builder.restarg(val[2], val[3])).
concat(val[5])
}
| f_marg_list tCOMMA tSTAR
{
result = val[0].
push(@builder.restarg(val[2]))
}
| f_marg_list tCOMMA tSTAR tCOMMA f_marg_list
{
result = val[0].
push(@builder.restarg(val[2])).
concat(val[4])
}
| tSTAR f_norm_arg
{
@static_env.declare val[1][0]
result = [ @builder.restarg(val[0], val[1]) ]
}
| tSTAR f_norm_arg tCOMMA f_marg_list
{
@static_env.declare val[1][0]
result = [ @builder.restarg(val[0], val[1]),
*val[3] ]
}
| tSTAR
{
result = [ @builder.restarg(val[0]) ]
}
| tSTAR tCOMMA f_marg_list
{
result = [ @builder.restarg(val[0]),
*val[2] ]
}
block_args_tail: f_block_kwarg tCOMMA f_kwrest opt_f_block_arg
{
result = val[0].concat(val[2]).concat(val[3])
}
| f_block_kwarg opt_f_block_arg
{
result = val[0].concat(val[1])
}
| f_kwrest opt_f_block_arg
{
result = val[0].concat(val[1])
}
| f_block_arg
{
result = [ val[0] ]
}
opt_block_args_tail:
tCOMMA block_args_tail
{
result = val[1]
}
| # nothing
{
result = []
}
block_param: f_arg tCOMMA f_block_optarg tCOMMA f_rest_arg opt_block_args_tail
{
result = val[0].
concat(val[2]).
concat(val[4]).
concat(val[5])
}
| f_arg tCOMMA f_block_optarg tCOMMA f_rest_arg tCOMMA f_arg opt_block_args_tail
{
result = val[0].
concat(val[2]).
concat(val[4]).
concat(val[6]).
concat(val[7])
}
| f_arg tCOMMA f_block_optarg opt_block_args_tail
{
result = val[0].
concat(val[2]).
concat(val[3])
}
| f_arg tCOMMA f_block_optarg tCOMMA f_arg opt_block_args_tail
{
result = val[0].
concat(val[2]).
concat(val[4]).
concat(val[5])
}
| f_arg tCOMMA f_rest_arg opt_block_args_tail
{
result = val[0].
concat(val[2]).
concat(val[3])
}
| f_arg tCOMMA
| f_arg tCOMMA f_rest_arg tCOMMA f_arg opt_block_args_tail
{
result = val[0].
concat(val[2]).
concat(val[4]).
concat(val[5])
}
| f_arg opt_block_args_tail
{
result = val[0].concat(val[1])
}
| f_block_optarg tCOMMA f_rest_arg opt_block_args_tail
{
result = val[0].
concat(val[2]).
concat(val[3])
}
| f_block_optarg tCOMMA f_rest_arg tCOMMA f_arg opt_block_args_tail
{
result = val[0].
concat(val[2]).
concat(val[4]).
concat(val[5])
}
| f_block_optarg opt_block_args_tail
{
result = val[0].
concat(val[1])
}
| f_block_optarg tCOMMA f_arg opt_block_args_tail
{
result = val[0].
concat(val[2]).
concat(val[3])
}
| f_rest_arg opt_block_args_tail
{
result = val[0].
concat(val[1])
}
| f_rest_arg tCOMMA f_arg opt_block_args_tail
{
result = val[0].
concat(val[2]).
concat(val[3])
}
| block_args_tail
opt_block_param: # nothing
{
result = @builder.args(nil, [], nil)
}
| block_param_def
{
@lexer.state = :expr_value
}
block_param_def: tPIPE opt_bv_decl tPIPE
{
result = @builder.args(val[0], val[1], val[2])
}
| tOROP
{
result = @builder.args(val[0], [], val[0])
}
| tPIPE block_param opt_bv_decl tPIPE
{
result = @builder.args(val[0], val[1].concat(val[2]), val[3])
}
opt_bv_decl: opt_nl
{
result = []
}
| opt_nl tSEMI bv_decls opt_nl
{
result = val[2]
}
bv_decls: bvar
{
result = [ val[0] ]
}
| bv_decls tCOMMA bvar
{
result = val[0] << val[2]
}
bvar: tIDENTIFIER
{
result = @builder.shadowarg(val[0])
}
| f_bad_arg
lambda: {
@static_env.extend_dynamic
}
f_larglist lambda_body
{
result = [ val[1], val[2] ]
@static_env.unextend
}
f_larglist: tLPAREN2 f_args opt_bv_decl tRPAREN
{
result = @builder.args(val[0], val[1].concat(val[2]), val[3])
}
| f_args
{
result = @builder.args(nil, val[0], nil)
}
lambda_body: tLAMBEG compstmt tRCURLY
{
result = [ val[0], val[1], val[2] ]
}
| kDO_LAMBDA compstmt kEND
{
result = [ val[0], val[1], val[2] ]
}
do_block: kDO_BLOCK
{
@static_env.extend_dynamic
}
opt_block_param compstmt kEND
{
result = [ val[0], val[2], val[3], val[4] ]
@static_env.unextend
}
block_call: command do_block
{
begin_t, block_args, body, end_t = val[1]
result = @builder.block(val[0],
begin_t, block_args, body, end_t)
}
| block_call dot_or_colon operation2 opt_paren_args
{
lparen_t, args, rparen_t = val[3]
result = @builder.call_method(val[0], val[1], val[2],
lparen_t, args, rparen_t)
}
| block_call dot_or_colon operation2 opt_paren_args brace_block
{
lparen_t, args, rparen_t = val[3]
method_call = @builder.call_method(val[0], val[1], val[2],
lparen_t, args, rparen_t)
begin_t, args, body, end_t = val[4]
result = @builder.block(method_call,
begin_t, args, body, end_t)
}
| block_call dot_or_colon operation2 command_args do_block
{
method_call = @builder.call_method(val[0], val[1], val[2],
nil, val[3], nil)
begin_t, args, body, end_t = val[4]
result = @builder.block(method_call,
begin_t, args, body, end_t)
}
method_call: fcall paren_args
{
lparen_t, args, rparen_t = val[1]
result = @builder.call_method(nil, nil, val[0],
lparen_t, args, rparen_t)
}
| primary_value tDOT operation2 opt_paren_args
{
lparen_t, args, rparen_t = val[3]
result = @builder.call_method(val[0], val[1], val[2],
lparen_t, args, rparen_t)
}
| primary_value tCOLON2 operation2 paren_args
{
lparen_t, args, rparen_t = val[3]
result = @builder.call_method(val[0], val[1], val[2],
lparen_t, args, rparen_t)
}
| primary_value tCOLON2 operation3
{
result = @builder.call_method(val[0], val[1], val[2])
}
| primary_value tDOT paren_args
{
lparen_t, args, rparen_t = val[2]
result = @builder.call_method(val[0], val[1], nil,
lparen_t, args, rparen_t)
}
| primary_value tCOLON2 paren_args
{
lparen_t, args, rparen_t = val[2]
result = @builder.call_method(val[0], val[1], nil,
lparen_t, args, rparen_t)
}
| kSUPER paren_args
{
lparen_t, args, rparen_t = val[1]
result = @builder.keyword_cmd(:super, val[0],
lparen_t, args, rparen_t)
}
| kSUPER
{
result = @builder.keyword_cmd(:zsuper, val[0])
}
| primary_value tLBRACK2 opt_call_args rbracket
{
result = @builder.index(val[0], val[1], val[2], val[3])
}
brace_block: tLCURLY
{
@static_env.extend_dynamic
}
opt_block_param compstmt tRCURLY
{
result = [ val[0], val[2], val[3], val[4] ]
@static_env.unextend
}
| kDO
{
@static_env.extend_dynamic
}
opt_block_param compstmt kEND
{
result = [ val[0], val[2], val[3], val[4] ]
@static_env.unextend
}
case_body: kWHEN args then compstmt cases
{
result = [ @builder.when(val[0], val[1], val[2], val[3]),
*val[4] ]
}
cases: opt_else
{
result = [ val[0] ]
}
| case_body
opt_rescue: kRESCUE exc_list exc_var then compstmt opt_rescue
{
assoc_t, exc_var = val[2]
if val[1]
exc_list = @builder.array(nil, val[1], nil)
end
result = [ @builder.rescue_body(val[0],
exc_list, assoc_t, exc_var,
val[3], val[4]),
*val[5] ]
}
|
{
result = []
}
exc_list: arg_value
{
result = [ val[0] ]
}
| mrhs
| none
exc_var: tASSOC lhs
{
result = [ val[0], val[1] ]
}
| none
opt_ensure: kENSURE compstmt
{
result = [ val[0], val[1] ]
}
| none
literal: numeric
| symbol
| dsym
strings: string
{
result = @builder.string_compose(nil, val[0], nil)
}
string: string1
{
result = [ val[0] ]
}
| string string1
{
result = val[0] << val[1]
}
string1: tSTRING_BEG string_contents tSTRING_END
{
result = @builder.string_compose(val[0], val[1], val[2])
}
| tSTRING
{
result = @builder.string(val[0])
}
| tCHARACTER
{
result = @builder.character(val[0])
}
xstring: tXSTRING_BEG xstring_contents tSTRING_END
{
result = @builder.xstring_compose(val[0], val[1], val[2])
}
regexp: tREGEXP_BEG regexp_contents tSTRING_END tREGEXP_OPT
{
opts = @builder.regexp_options(val[3])
result = @builder.regexp_compose(val[0], val[1], val[2], opts)
}
words: tWORDS_BEG word_list tSTRING_END
{
result = @builder.words_compose(val[0], val[1], val[2])
}
word_list: # nothing
{
result = []
}
| word_list word tSPACE
{
result = val[0] << @builder.word(val[1])
}
word: string_content
{
result = [ val[0] ]
}
| word string_content
{
result = val[0] << val[1]
}
symbols: tSYMBOLS_BEG symbol_list tSTRING_END
{
result = @builder.symbols_compose(val[0], val[1], val[2])
}
symbol_list: # nothing
{
result = []
}
| symbol_list word tSPACE
{
result = val[0] << @builder.word(val[1])
}
qwords: tQWORDS_BEG qword_list tSTRING_END
{
result = @builder.words_compose(val[0], val[1], val[2])
}
qsymbols: tQSYMBOLS_BEG qsym_list tSTRING_END
{
result = @builder.symbols_compose(val[0], val[1], val[2])
}
qword_list: # nothing
{
result = []
}
| qword_list tSTRING_CONTENT tSPACE
{
result = val[0] << @builder.string_internal(val[1])
}
qsym_list: # nothing
{
result = []
}
| qsym_list tSTRING_CONTENT tSPACE
{
result = val[0] << @builder.symbol_internal(val[1])
}
string_contents: # nothing
{
result = []
}
| string_contents string_content
{
result = val[0] << val[1]
}
xstring_contents: # nothing
{
result = []
}
| xstring_contents string_content
{
result = val[0] << val[1]
}
regexp_contents: # nothing
{
result = []
}
| regexp_contents string_content
{
result = val[0] << val[1]
}
string_content: tSTRING_CONTENT
{
result = @builder.string_internal(val[0])
}
| tSTRING_DVAR string_dvar
{
result = val[1]
}
| tSTRING_DBEG
{
@lexer.cond.push(false)
@lexer.cmdarg.push(false)
}
compstmt tSTRING_DEND
{
@lexer.cond.lexpop
@lexer.cmdarg.lexpop
result = @builder.begin(val[0], val[2], val[3])
}
string_dvar: tGVAR
{
result = @builder.gvar(val[0])
}
| tIVAR
{
result = @builder.ivar(val[0])
}
| tCVAR
{
result = @builder.cvar(val[0])
}
| backref
symbol: tSYMBOL
{
result = @builder.symbol(val[0])
}
dsym: tSYMBEG xstring_contents tSTRING_END
{
result = @builder.symbol_compose(val[0], val[1], val[2])
}
numeric: tINTEGER
{
result = @builder.integer(val[0])
}
| tFLOAT
{
result = @builder.float(val[0])
}
| tUMINUS_NUM tINTEGER =tLOWEST
{
result = @builder.negate(val[0],
@builder.integer(val[1]))
}
| tUMINUS_NUM tFLOAT =tLOWEST
{
result = @builder.negate(val[0],
@builder.float(val[1]))
}
user_variable: tIDENTIFIER
{
result = @builder.ident(val[0])
}
| tIVAR
{
result = @builder.ivar(val[0])
}
| tGVAR
{
result = @builder.gvar(val[0])
}
| tCONSTANT
{
result = @builder.const(val[0])
}
| tCVAR
{
result = @builder.cvar(val[0])
}
keyword_variable: kNIL
{
result = @builder.nil(val[0])
}
| kSELF
{
result = @builder.self(val[0])
}
| kTRUE
{
result = @builder.true(val[0])
}
| kFALSE
{
result = @builder.false(val[0])
}
| k__FILE__
{
result = @builder.__FILE__(val[0])
}
| k__LINE__
{
result = @builder.__LINE__(val[0])
}
| k__ENCODING__
{
result = @builder.__ENCODING__(val[0])
}
var_ref: user_variable
{
result = @builder.accessible(val[0])
}
| keyword_variable
{
result = @builder.accessible(val[0])
}
var_lhs: user_variable
{
result = @builder.assignable(val[0])
}
| keyword_variable
{
result = @builder.assignable(val[0])
}
backref: tNTH_REF
{
result = @builder.nth_ref(val[0])
}
| tBACK_REF
{
result = @builder.back_ref(val[0])
}
superclass: term
{
result = nil
}
| tLT
{
@lexer.state = :expr_value
}
expr_value term
{
result = [ val[0], val[2] ]
}
| error term
{
yyerrok
result = nil
}
f_arglist: tLPAREN2 f_args rparen
{
result = @builder.args(val[0], val[1], val[2])
@lexer.state = :expr_value
}
| f_args term
{
result = @builder.args(nil, val[0], nil)
}
args_tail: f_kwarg tCOMMA f_kwrest opt_f_block_arg
{
result = val[0].concat(val[2]).concat(val[3])
}
| f_kwarg opt_f_block_arg
{
result = val[0].concat(val[1])
}
| f_kwrest opt_f_block_arg
{
result = val[0].concat(val[1])
}
| f_block_arg
{
result = [ val[0] ]
}
opt_args_tail: tCOMMA args_tail
{
result = val[1]
}
| # nothing
{
result = []
}
f_args: f_arg tCOMMA f_optarg tCOMMA f_rest_arg opt_args_tail
{
result = val[0].
concat(val[2]).
concat(val[4]).
concat(val[5])
}
| f_arg tCOMMA f_optarg tCOMMA f_rest_arg tCOMMA f_arg opt_args_tail
{
result = val[0].
concat(val[2]).
concat(val[4]).
concat(val[6]).
concat(val[7])
}
| f_arg tCOMMA f_optarg opt_args_tail
{
result = val[0].
concat(val[2]).
concat(val[3])
}
| f_arg tCOMMA f_optarg tCOMMA f_arg opt_args_tail
{
result = val[0].
concat(val[2]).
concat(val[4]).
concat(val[5])
}
| f_arg tCOMMA f_rest_arg opt_args_tail
{
result = val[0].
concat(val[2]).
concat(val[3])
}
| f_arg tCOMMA f_rest_arg tCOMMA f_arg opt_args_tail
{
result = val[0].
concat(val[2]).
concat(val[4]).
concat(val[5])
}
| f_arg opt_args_tail
{
result = val[0].
concat(val[1])
}
| f_optarg tCOMMA f_rest_arg opt_args_tail
{
result = val[0].
concat(val[2]).
concat(val[3])
}
| f_optarg tCOMMA f_rest_arg tCOMMA f_arg opt_args_tail
{
result = val[0].
concat(val[2]).
concat(val[4]).
concat(val[5])
}
| f_optarg opt_args_tail
{
result = val[0].
concat(val[1])
}
| f_optarg tCOMMA f_arg opt_args_tail
{
result = val[0].
concat(val[2]).
concat(val[3])
}
| f_rest_arg opt_args_tail
{
result = val[0].
concat(val[1])
}
| f_rest_arg tCOMMA f_arg opt_args_tail
{
result = val[0].
concat(val[2]).
concat(val[3])
}
| args_tail
{
result = val[0]
}
| # nothing
{
result = []
}
f_bad_arg: tCONSTANT
{
diagnostic :error, :argument_const, nil, val[0]
}
| tIVAR
{
diagnostic :error, :argument_ivar, nil, val[0]
}
| tGVAR
{
diagnostic :error, :argument_gvar, nil, val[0]
}
| tCVAR
{
diagnostic :error, :argument_cvar, nil, val[0]
}
f_norm_arg: f_bad_arg
| tIDENTIFIER
f_arg_item: f_norm_arg
{
@static_env.declare val[0][0]
result = @builder.arg(val[0])
}
| tLPAREN f_margs rparen
{
result = @builder.multi_lhs(val[0], val[1], val[2])
}
f_arg: f_arg_item
{
result = [ val[0] ]
}
| f_arg tCOMMA f_arg_item
{
result = val[0] << val[2]
}
f_kw: tLABEL arg_value
{
check_kwarg_name(val[0])
@static_env.declare val[0][0]
result = @builder.kwoptarg(val[0], val[1])
}
f_block_kw: tLABEL primary_value
{
check_kwarg_name(val[0])
@static_env.declare val[0][0]
result = @builder.kwoptarg(val[0], val[1])
}
f_block_kwarg: f_block_kw
{
result = [ val[0] ]
}
| f_block_kwarg tCOMMA f_block_kw
{
result = val[0] << val[2]
}
f_kwarg: f_kw
{
result = [ val[0] ]
}
| f_kwarg tCOMMA f_kw
{
result = val[0] << val[2]
}
kwrest_mark: tPOW | tDSTAR
f_kwrest: kwrest_mark tIDENTIFIER
{
@static_env.declare val[1][0]
result = [ @builder.kwrestarg(val[0], val[1]) ]
}
| kwrest_mark
{
result = [ @builder.kwrestarg(val[0]) ]
}
f_opt: tIDENTIFIER tEQL arg_value
{
@static_env.declare val[0][0]
result = @builder.optarg(val[0], val[1], val[2])
}
f_block_opt: tIDENTIFIER tEQL primary_value
{
@static_env.declare val[0][0]
result = @builder.optarg(val[0], val[1], val[2])
}
f_block_optarg: f_block_opt
{
result = [ val[0] ]
}
| f_block_optarg tCOMMA f_block_opt
{
result = val[0] << val[2]
}
f_optarg: f_opt
{
result = [ val[0] ]
}
| f_optarg tCOMMA f_opt
{
result = val[0] << val[2]
}
restarg_mark: tSTAR2 | tSTAR
f_rest_arg: restarg_mark tIDENTIFIER
{
@static_env.declare val[1][0]
result = [ @builder.restarg(val[0], val[1]) ]
}
| restarg_mark
{
result = [ @builder.restarg(val[0]) ]
}
blkarg_mark: tAMPER2 | tAMPER
f_block_arg: blkarg_mark tIDENTIFIER
{
@static_env.declare val[1][0]
result = @builder.blockarg(val[0], val[1])
}
opt_f_block_arg: tCOMMA f_block_arg
{
result = [ val[1] ]
}
|
{
result = []
}
singleton: var_ref
| tLPAREN2 expr rparen
{
result = val[1]
}
assoc_list: # nothing
{
result = []
}
| assocs trailer
assocs: assoc
{
result = [ val[0] ]
}
| assocs tCOMMA assoc
{
result = val[0] << val[2]
}
assoc: arg_value tASSOC arg_value
{
result = @builder.pair(val[0], val[1], val[2])
}
| tLABEL arg_value
{
result = @builder.pair_keyword(val[0], val[1])
}
| tDSTAR arg_value
{
result = @builder.kwsplat(val[0], 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
{
result = val[1]
}
rbracket: opt_nl tRBRACK
{
result = val[1]
}
trailer: | tNL | tCOMMA
term: tSEMI
{
yyerrok
}
| tNL
terms: term
| terms tSEMI
none: # nothing
{
result = nil
}
end
---- header
require 'parser'
Parser.check_for_encoding_support
---- inner
def version
20
end
def default_encoding
Encoding::UTF_8
end