Module: RubyParserStuff
- Included in:
- Ruby18Parser, Ruby19Parser
- Defined in:
- lib/ruby_parser_extras.rb
Defined Under Namespace
Classes: Environment, Keyword, StackState
Constant Summary collapse
- VERSION =
SIGH
'3.1.2'
Instance Attribute Summary collapse
-
#canonicalize_conditions ⇒ Object
Canonicalize conditionals.
-
#comments ⇒ Object
readonly
Returns the value of attribute comments.
-
#env ⇒ Object
readonly
Returns the value of attribute env.
-
#file ⇒ Object
Returns the value of attribute file.
-
#in_def ⇒ Object
Returns the value of attribute in_def.
-
#in_single ⇒ Object
Returns the value of attribute in_single.
-
#lexer ⇒ Object
Returns the value of attribute lexer.
Instance Method Summary collapse
-
#arg_add(node1, node2) ⇒ Object
TODO: nuke.
-
#arg_blk_pass(node1, node2) ⇒ Object
TODO: nuke.
-
#arg_concat(node1, node2) ⇒ Object
TODO: nuke.
- #argl(x) ⇒ Object
- #args(args) ⇒ Object
- #aryset(receiver, index) ⇒ Object
- #assignable(lhs, value = nil) ⇒ Object
- #backref_assign_error(ref) ⇒ Object
- #block_append(head, tail) ⇒ Object
- #block_dup_check(call_or_args, block) ⇒ Object
- #block_var(*args) ⇒ Object
- #block_var18(ary, splat, block) ⇒ Object
- #clean_mlhs(sexp) ⇒ Object
- #cond(node) ⇒ Object
-
#do_parse ⇒ Object
for pure ruby systems only.
-
#get_match_node(lhs, rhs) ⇒ Object
TODO: rename to new_match.
- #gettable(id) ⇒ Object
- #hack_encoding(str, extra = nil) ⇒ Object
-
#handle_encoding(str) ⇒ Object
Returns a UTF-8 encoded string after processing BOMs and magic encoding comments.
- #initialize(options = {}) ⇒ Object
-
#list_append(list, item) ⇒ Object
TODO: nuke me sigh.
-
#list_prepend(item, list) ⇒ Object
TODO: nuke me sigh.
- #literal_concat(head, tail) ⇒ Object
-
#logop(type, left, right) ⇒ Object
TODO: rename logical_op.
- #new_aref(val) ⇒ Object
- #new_body(val) ⇒ Object
- #new_call(recv, meth, args = nil) ⇒ Object
- #new_case(expr, body) ⇒ Object
- #new_class(val) ⇒ Object
- #new_compstmt(val) ⇒ Object
- #new_defn(val) ⇒ Object
- #new_defs(val) ⇒ Object
- #new_for(expr, var, body) ⇒ Object
- #new_if(c, t, f) ⇒ Object
- #new_iter(call, args, body) ⇒ Object
- #new_masgn(lhs, rhs, wrap = false) ⇒ Object
- #new_module(val) ⇒ Object
- #new_op_asgn(val) ⇒ Object
- #new_regexp(val) ⇒ Object
- #new_resbody(cond, body) ⇒ Object
- #new_sclass(val) ⇒ Object
- #new_super(args) ⇒ Object
- #new_undef(n, m = nil) ⇒ Object
- #new_until(block, expr, pre) ⇒ Object
- #new_until_or_while(type, block, expr, pre) ⇒ Object
- #new_when(cond, body) ⇒ Object
- #new_while(block, expr, pre) ⇒ Object
- #new_xstring(str) ⇒ Object
- #new_yield(args = nil) ⇒ Object
- #next_token ⇒ Object
-
#node_assign(lhs, rhs) ⇒ Object
TODO: rename new_assign.
- #on_error(et, ev, values) ⇒ Object
-
#process(str, file = "(string)", time = 10) ⇒ Object
(also: #parse)
Parse
str
at pathfile
and return a sexp. - #remove_begin(node) ⇒ Object
- #reset ⇒ Object
- #ret_args(node) ⇒ Object
- #s(*args) ⇒ Object
- #syntax_error(msg) ⇒ Object (also: #yyerror)
-
#value_expr(oldnode) ⇒ Object
HACK.
- #void_stmts(node) ⇒ Object
- #warning(s) ⇒ Object
Instance Attribute Details
#canonicalize_conditions ⇒ Object
Canonicalize conditionals. Eg:
not x ? a : b
becomes:
x ? b : a
374 375 376 |
# File 'lib/ruby_parser_extras.rb', line 374 def canonicalize_conditions @canonicalize_conditions end |
#comments ⇒ Object (readonly)
Returns the value of attribute comments.
114 115 116 |
# File 'lib/ruby_parser_extras.rb', line 114 def comments @comments end |
#env ⇒ Object (readonly)
Returns the value of attribute env.
114 115 116 |
# File 'lib/ruby_parser_extras.rb', line 114 def env @env end |
#file ⇒ Object
Returns the value of attribute file.
113 114 115 |
# File 'lib/ruby_parser_extras.rb', line 113 def file @file end |
#in_def ⇒ Object
Returns the value of attribute in_def.
113 114 115 |
# File 'lib/ruby_parser_extras.rb', line 113 def in_def @in_def end |
#in_single ⇒ Object
Returns the value of attribute in_single.
113 114 115 |
# File 'lib/ruby_parser_extras.rb', line 113 def in_single @in_single end |
#lexer ⇒ Object
Returns the value of attribute lexer.
113 114 115 |
# File 'lib/ruby_parser_extras.rb', line 113 def lexer @lexer end |
Instance Method Details
#arg_add(node1, node2) ⇒ Object
TODO: nuke
120 121 122 123 124 125 126 127 |
# File 'lib/ruby_parser_extras.rb', line 120 def arg_add(node1, node2) # TODO: nuke return s(:arglist, node2) unless node1 node1[0] = :arglist if node1[0] == :array return node1 << node2 if node1[0] == :arglist return s(:arglist, node1, node2) end |
#arg_blk_pass(node1, node2) ⇒ Object
TODO: nuke
129 130 131 132 133 |
# File 'lib/ruby_parser_extras.rb', line 129 def arg_blk_pass node1, node2 # TODO: nuke node1 = s(:arglist, node1) unless [:arglist, :array].include? node1.first node1 << node2 if node2 node1 end |
#arg_concat(node1, node2) ⇒ Object
TODO: nuke
135 136 137 138 139 |
# File 'lib/ruby_parser_extras.rb', line 135 def arg_concat node1, node2 # TODO: nuke raise "huh" unless node2 node1 << s(:splat, node2).compact node1 end |
#argl(x) ⇒ Object
501 502 503 504 |
# File 'lib/ruby_parser_extras.rb', line 501 def argl x x = s(:arglist, x) if x and x[0] != :arglist x end |
#args(args) ⇒ Object
183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 |
# File 'lib/ruby_parser_extras.rb', line 183 def args args result = s(:args) args.each do |arg| case arg when Sexp then case arg.sexp_type when :args, :block, :array then result.concat arg[1..-1] when :block_arg then result << :"&#{arg.last}" when :masgn then result << arg else raise "unhandled: #{arg.inspect}" end when Symbol then result << arg when ",", nil then # ignore else raise "unhandled: #{arg.inspect}" end end result end |
#aryset(receiver, index) ⇒ Object
211 212 213 214 |
# File 'lib/ruby_parser_extras.rb', line 211 def aryset receiver, index index ||= [] s(:attrasgn, receiver, :"[]=", *index[1..-1]) end |
#assignable(lhs, value = nil) ⇒ Object
216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 |
# File 'lib/ruby_parser_extras.rb', line 216 def assignable(lhs, value = nil) id = lhs.to_sym id = id.to_sym if Sexp === id raise "write a test 1" if id.to_s =~ /^(?:self|nil|true|false|__LINE__|__FILE__)$/ raise SyntaxError, "Can't change the value of #{id}" if id.to_s =~ /^(?:self|nil|true|false|__LINE__|__FILE__)$/ result = case id.to_s when /^@@/ then asgn = in_def || in_single > 0 s((asgn ? :cvasgn : :cvdecl), id) when /^@/ then s(:iasgn, id) when /^\$/ then s(:gasgn, id) when /^[A-Z]/ then s(:cdecl, id) else case self.env[id] when :lvar then s(:lasgn, id) when :dvar, nil then if self.env.current[id] == :dvar then s(:lasgn, id) elsif self.env[id] == :dvar then self.env.use(id) s(:lasgn, id) elsif ! self.env.dynamic? then s(:lasgn, id) else s(:lasgn, id) end else raise "wtf? unknown type: #{self.env[id]}" end end self.env[id] ||= :lvar result << value if value return result end |
#backref_assign_error(ref) ⇒ Object
506 507 508 509 510 511 512 513 514 515 516 517 518 |
# File 'lib/ruby_parser_extras.rb', line 506 def backref_assign_error ref # TODO: need a test for this... obviously case ref.first when :nth_ref then raise "write a test 2" raise SyntaxError, "Can't set variable %p" % ref.last when :back_ref then raise "write a test 3" raise SyntaxError, "Can't set back reference %p" % ref.last else raise "Unknown backref type: #{ref.inspect}" end end |
#block_append(head, tail) ⇒ Object
262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 |
# File 'lib/ruby_parser_extras.rb', line 262 def block_append(head, tail) return head if tail.nil? return tail if head.nil? case head[0] when :lit, :str then return tail end line = [head.line, tail.line].compact.min head = remove_begin(head) head = s(:block, head) unless head.node_type == :block head.line = line head << tail end |
#block_dup_check(call_or_args, block) ⇒ Object
1004 1005 1006 1007 |
# File 'lib/ruby_parser_extras.rb', line 1004 def block_dup_check call_or_args, block syntax_error "Both block arg and actual block given." if block and call_or_args.block_pass? end |
#block_var(*args) ⇒ Object
160 161 162 163 164 |
# File 'lib/ruby_parser_extras.rb', line 160 def block_var *args result = self.args args result[0] = :masgn result end |
#block_var18(ary, splat, block) ⇒ Object
166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 |
# File 'lib/ruby_parser_extras.rb', line 166 def block_var18 ary, splat, block ary ||= s(:array) if splat then splat = splat[1] unless Symbol === splat ary << "*#{splat}".to_sym end ary << "&#{block[1]}".to_sym if block if ary.length > 2 or ary.splat then # HACK s(:masgn, *ary[1..-1]) else ary.last end end |
#clean_mlhs(sexp) ⇒ Object
141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 |
# File 'lib/ruby_parser_extras.rb', line 141 def clean_mlhs sexp case sexp.sexp_type when :masgn then if sexp.size == 2 and sexp[1].sexp_type == :array then s(:masgn, *sexp[1][1..-1].map { |sub| clean_mlhs sub }) else sexp end when :gasgn, :iasgn, :lasgn, :cvasgn then if sexp.size == 2 then sexp.last else sexp # optional value end else raise "unsupported type: #{sexp.inspect}" end end |
#cond(node) ⇒ Object
280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 |
# File 'lib/ruby_parser_extras.rb', line 280 def cond node return nil if node.nil? node = value_expr node case node.first when :lit then if Regexp === node.last then return s(:match, node) else return node end when :and then return s(:and, cond(node[1]), cond(node[2])) when :or then return s(:or, cond(node[1]), cond(node[2])) when :dot2 then label = "flip#{node.hash}" env[label] = :lvar return s(:flip2, node[1], node[2]) when :dot3 then label = "flip#{node.hash}" env[label] = :lvar return s(:flip3, node[1], node[2]) else return node end end |
#do_parse ⇒ Object
for pure ruby systems only
311 312 313 |
# File 'lib/ruby_parser_extras.rb', line 311 def do_parse _racc_do_parse_rb(_racc_setup, false) end |
#get_match_node(lhs, rhs) ⇒ Object
TODO: rename to new_match
315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 |
# File 'lib/ruby_parser_extras.rb', line 315 def get_match_node lhs, rhs # TODO: rename to new_match if lhs then case lhs[0] when :dregx, :dregx_once then return s(:match2, lhs, rhs).line(lhs.line) when :lit then return s(:match2, lhs, rhs).line(lhs.line) if Regexp === lhs.last end end if rhs then case rhs[0] when :dregx, :dregx_once then return s(:match3, rhs, lhs).line(lhs.line) when :lit then return s(:match3, rhs, lhs).line(lhs.line) if Regexp === rhs.last end end return new_call(lhs, :"=~", argl(rhs)).line(lhs.line) end |
#gettable(id) ⇒ Object
337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 |
# File 'lib/ruby_parser_extras.rb', line 337 def gettable(id) id = id.to_sym if String === id result = case id.to_s when /^@@/ then s(:cvar, id) when /^@/ then s(:ivar, id) when /^\$/ then s(:gvar, id) when /^[A-Z]/ then s(:const, id) else type = env[id] if type then s(type, id) else new_call(nil, id) end end result.line(result.line - 1) if result.line and lexer.src.bol? raise "identifier #{id.inspect} is not valid" unless result result end |
#hack_encoding(str, extra = nil) ⇒ Object
932 933 934 935 936 937 938 939 940 941 942 943 944 945 946 947 948 949 950 951 952 953 954 955 956 957 958 959 960 961 962 963 964 |
# File 'lib/ruby_parser_extras.rb', line 932 def hack_encoding str, extra = nil # this is in sorted order of occurrence according to # charlock_holmes against 500k files encodings = [ extra, Encoding::ISO_8859_1, Encoding::UTF_8, Encoding::ISO_8859_2, Encoding::ISO_8859_9, Encoding::SHIFT_JIS, Encoding::WINDOWS_1252, Encoding::EUC_JP, ].compact # terrible, horrible, no good, very bad, last ditch effort. encodings.each do |enc| begin str.force_encoding enc if str.valid_encoding? then str.encode! Encoding::UTF_8 break end rescue Encoding::InvalidByteSequenceError # do nothing rescue Encoding::UndefinedConversionError # do nothing end end # no amount of pain is enough for you. raise "Bad encoding. Need a magic encoding comment." unless str.encoding.name == "UTF-8" end |
#handle_encoding(str) ⇒ Object
Returns a UTF-8 encoded string after processing BOMs and magic encoding comments.
Holy crap… ok. Here goes:
Ruby’s file handling and encoding support is insane. We need to be able to lex a file. The lexer file is explicitly UTF-8 to make things cleaner. This allows us to deal with extended chars in class and method names. In order to do this, we need to encode all input source files as UTF-8. First, we look for a UTF-8 BOM by looking at the first line while forcing its encoding to ASCII-8BIT. If we find a BOM, we strip it and set the expected encoding to UTF-8. Then, we search for a magic encoding comment. If found, it overrides the BOM. Finally, we force the encoding of the input string to whatever was found, and then encode that to UTF-8 for compatibility with the lexer.
901 902 903 904 905 906 907 908 909 910 911 912 913 914 915 916 917 918 919 920 921 922 923 924 925 926 927 928 929 930 |
# File 'lib/ruby_parser_extras.rb', line 901 def handle_encoding str str = str.dup ruby19 = str.respond_to? :encoding encoding = nil header = str.lines.first(2) header.map! { |s| s.force_encoding "ASCII-8BIT" } if ruby19 first = header.first || "" encoding, str = "utf-8", str[3..-1] if first =~ /\A\xEF\xBB\xBF/ encoding = $1.strip if header.find { |s| s[/^#.*?-\*-.*?coding:\s*([^ ;]+).*?-\*-/, 1] || s[/^#.*(?:en)?coding(?:\s*[:=])\s*([\w-]+)/, 1] } if encoding then if ruby19 then encoding.sub!(/utf-8-.+$/, 'utf-8') # HACK for stupid emacs formats hack_encoding str, encoding else warn "Skipping magic encoding comment" end else # nothing specified... ugh. try to encode as utf-8 hack_encoding str if ruby19 end str end |
#initialize(options = {}) ⇒ Object
376 377 378 379 380 381 382 383 384 385 386 387 388 |
# File 'lib/ruby_parser_extras.rb', line 376 def initialize( = {}) super() v = self.class.name[/1[89]/] self.lexer = RubyLexer.new v && v.to_i self.lexer.parser = self @env = RubyParserStuff::Environment.new @comments = [] @canonicalize_conditions = true self.reset end |
#list_append(list, item) ⇒ Object
TODO: nuke me sigh
390 391 392 393 394 |
# File 'lib/ruby_parser_extras.rb', line 390 def list_append list, item # TODO: nuke me *sigh* return s(:array, item) unless list list = s(:array, list) unless Sexp === list && list.first == :array list << item end |
#list_prepend(item, list) ⇒ Object
TODO: nuke me sigh
396 397 398 399 400 |
# File 'lib/ruby_parser_extras.rb', line 396 def list_prepend item, list # TODO: nuke me *sigh* list = s(:array, list) unless Sexp === list && list[0] == :array list.insert 1, item list end |
#literal_concat(head, tail) ⇒ Object
402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 |
# File 'lib/ruby_parser_extras.rb', line 402 def literal_concat head, tail return tail unless head return head unless tail htype, ttype = head[0], tail[0] head = s(:dstr, '', head) if htype == :evstr case ttype when :str then if htype == :str head[-1] << tail[-1] elsif htype == :dstr and head.size == 2 then head[-1] << tail[-1] else head << tail end when :dstr then if htype == :str then tail[1] = head[-1] + tail[1] head = tail else tail[0] = :array tail[1] = s(:str, tail[1]) tail.delete_at 1 if tail[1] == s(:str, '') head.push(*tail[1..-1]) end when :evstr then head[0] = :dstr if htype == :str if head.size == 2 and tail.size > 1 and tail[1][0] == :str then head[-1] << tail[1][-1] head[0] = :str if head.size == 2 # HACK ? else head.push(tail) end else x = [head, tail] raise "unknown type: #{x.inspect}" end return head end |
#logop(type, left, right) ⇒ Object
TODO: rename logical_op
446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 |
# File 'lib/ruby_parser_extras.rb', line 446 def logop(type, left, right) # TODO: rename logical_op left = value_expr left if left and left[0] == type and not left.paren then node, second = left, nil while (second = node[2]) && second[0] == type and not second.paren do node = second end node[2] = s(type, second, right) return left end return s(type, left, right) end |
#new_aref(val) ⇒ Object
464 465 466 467 468 469 470 471 472 473 |
# File 'lib/ruby_parser_extras.rb', line 464 def new_aref val val[2] ||= s(:arglist) val[2][0] = :arglist if val[2][0] == :array # REFACTOR if val[0].node_type == :self then result = new_call nil, :"[]", val[2] else result = new_call val[0], :"[]", val[2] end result end |
#new_body(val) ⇒ Object
475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 |
# File 'lib/ruby_parser_extras.rb', line 475 def new_body val result = val[0] if val[1] then result = s(:rescue) result << val[0] if val[0] resbody = val[1] while resbody do result << resbody resbody = resbody.resbody(true) end result << val[2] if val[2] result.line = (val[0] || val[1]).line elsif not val[2].nil? then warning("else without rescue is useless") result = block_append(result, val[2]) end result = s(:ensure, result, val[3]).compact if val[3] return result end |
#new_call(recv, meth, args = nil) ⇒ Object
520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 |
# File 'lib/ruby_parser_extras.rb', line 520 def new_call recv, meth, args = nil result = s(:call, recv, meth) # TODO: need a test with f(&b) to produce block_pass # TODO: need a test with f(&b) { } to produce warning args ||= s(:arglist) args[0] = :arglist if args.first == :array args = s(:arglist, args) unless args.first == :arglist # HACK quick hack to make this work quickly... easy to clean up above result.concat args[1..-1] line = result.grep(Sexp).map(&:line).compact.min result.line = line if line result end |
#new_case(expr, body) ⇒ Object
539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 |
# File 'lib/ruby_parser_extras.rb', line 539 def new_case expr, body result = s(:case, expr) line = (expr || body).line while body and body.node_type == :when result << body body = body.delete_at 3 end result[2..-1].each do |node| block = node.block(:delete) node.concat block[1..-1] if block end # else body = nil if body == s(:block) result << body result.line = line result end |
#new_class(val) ⇒ Object
561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 |
# File 'lib/ruby_parser_extras.rb', line 561 def new_class val line, path, superclass, body = val[1], val[2], val[3], val[5] result = s(:class, path, superclass) if body then if body.first == :block then result.push(*body[1..-1]) else result.push body end end result.line = line result.comments = self.comments.pop result end |
#new_compstmt(val) ⇒ Object
579 580 581 582 583 |
# File 'lib/ruby_parser_extras.rb', line 579 def new_compstmt val result = void_stmts(val.grep(Sexp)[0]) result = remove_begin(result) if result result end |
#new_defn(val) ⇒ Object
585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 |
# File 'lib/ruby_parser_extras.rb', line 585 def new_defn val (_, line), name, args, body = val[0], val[1], val[3], val[4] body ||= s(:nil) result = s(:defn, name.to_sym, args) if body then if body.first == :block then result.push(*body[1..-1]) else result.push body end end result.line = line result.comments = self.comments.pop result end |
#new_defs(val) ⇒ Object
604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 |
# File 'lib/ruby_parser_extras.rb', line 604 def new_defs val recv, name, args, body = val[1], val[4], val[6], val[7] result = s(:defs, recv, name.to_sym, args) if body then if body.first == :block then result.push(*body[1..-1]) else result.push body end end result.line = recv.line result.comments = self.comments.pop result end |
#new_for(expr, var, body) ⇒ Object
622 623 624 625 626 |
# File 'lib/ruby_parser_extras.rb', line 622 def new_for expr, var, body result = s(:for, expr, var).line(var.line) result << body if body result end |
#new_if(c, t, f) ⇒ Object
628 629 630 631 632 633 |
# File 'lib/ruby_parser_extras.rb', line 628 def new_if c, t, f l = [c.line, t && t.line, f && f.line].compact.min c = cond c c, t, f = c.last, f, t if c[0] == :not and canonicalize_conditions s(:if, c, t, f).line(l) end |
#new_iter(call, args, body) ⇒ Object
635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 |
# File 'lib/ruby_parser_extras.rb', line 635 def new_iter call, args, body body ||= nil args ||= s(:args) args = s(:args, args) if Symbol === args result = s(:iter) result << call if call result << args result << body if body args[0] = :args unless args == 0 result end |
#new_masgn(lhs, rhs, wrap = false) ⇒ Object
651 652 653 654 655 656 657 658 659 |
# File 'lib/ruby_parser_extras.rb', line 651 def new_masgn lhs, rhs, wrap = false rhs = value_expr(rhs) rhs = lhs[1] ? s(:to_ary, rhs) : s(:array, rhs) if wrap lhs.delete_at 1 if lhs[1].nil? lhs << rhs lhs end |
#new_module(val) ⇒ Object
661 662 663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 |
# File 'lib/ruby_parser_extras.rb', line 661 def new_module val line, path, body = val[1], val[2], val[4] result = s(:module, path) if body then # REFACTOR? if body.first == :block then result.push(*body[1..-1]) else result.push body end end result.line = line result.comments = self.comments.pop result end |
#new_op_asgn(val) ⇒ Object
679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694 695 696 697 |
# File 'lib/ruby_parser_extras.rb', line 679 def new_op_asgn val lhs, asgn_op, arg = val[0], val[1].to_sym, val[2] name = lhs.value arg = remove_begin(arg) result = case asgn_op # REFACTOR when :"||" then lhs << arg s(:op_asgn_or, self.gettable(name), lhs) when :"&&" then lhs << arg s(:op_asgn_and, self.gettable(name), lhs) else # TODO: why [2] ? lhs[2] = new_call(self.gettable(name), asgn_op, argl(arg)) lhs end result.line = lhs.line result end |
#new_regexp(val) ⇒ Object
699 700 701 702 703 704 705 706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 742 743 744 745 746 747 |
# File 'lib/ruby_parser_extras.rb', line 699 def new_regexp val node = val[1] || s(:str, '') = val[2] o, k = 0, nil .split(//).uniq.each do |c| # FIX: this has a better home v = { 'x' => Regexp::EXTENDED, 'i' => Regexp::IGNORECASE, 'm' => Regexp::MULTILINE, 'o' => Regexp::ONCE, 'n' => Regexp::ENC_NONE, 'e' => Regexp::ENC_EUC, 's' => Regexp::ENC_SJIS, 'u' => Regexp::ENC_UTF8, }[c] raise "unknown regexp option: #{c}" unless v o += v k = c if c =~ /[esu]/ end case node[0] when :str then node[0] = :lit node[1] = if k then Regexp.new(node[1], o, k) else begin Regexp.new(node[1], o) rescue RegexpError => e warn "Ignoring: #{e.}" Regexp.new(node[1], Regexp::ENC_NONE) end end when :dstr then if =~ /o/ then node[0] = :dregx_once else node[0] = :dregx end node << o if o and o != 0 else node = s(:dregx, '', node); node[0] = :dregx_once if =~ /o/ node << o if o and o != 0 end node end |
#new_resbody(cond, body) ⇒ Object
749 750 751 752 753 754 755 756 |
# File 'lib/ruby_parser_extras.rb', line 749 def new_resbody cond, body if body && body.first == :block then body.shift # remove block and splat it in directly else body = [body] end s(:resbody, cond, *body) end |
#new_sclass(val) ⇒ Object
758 759 760 761 762 763 764 765 766 767 768 769 770 771 772 773 774 775 |
# File 'lib/ruby_parser_extras.rb', line 758 def new_sclass val recv, in_def, in_single, body = val[3], val[4], val[6], val[7] result = s(:sclass, recv) if body then if body.first == :block then result.push(*body[1..-1]) else result.push body end end result.line = val[2] self.in_def = in_def self.in_single = in_single result end |
#new_super(args) ⇒ Object
777 778 779 780 781 782 783 784 |
# File 'lib/ruby_parser_extras.rb', line 777 def new_super args if args && args.node_type == :block_pass then s(:super, args) else args ||= s(:arglist) s(:super, *args[1..-1]) end end |
#new_undef(n, m = nil) ⇒ Object
786 787 788 789 790 791 792 |
# File 'lib/ruby_parser_extras.rb', line 786 def new_undef n, m = nil if m then block_append(n, s(:undef, m)) else s(:undef, n) end end |
#new_until(block, expr, pre) ⇒ Object
794 795 796 |
# File 'lib/ruby_parser_extras.rb', line 794 def new_until block, expr, pre new_until_or_while :until, block, expr, pre end |
#new_until_or_while(type, block, expr, pre) ⇒ Object
798 799 800 801 802 803 804 805 806 807 808 809 810 811 812 813 |
# File 'lib/ruby_parser_extras.rb', line 798 def new_until_or_while type, block, expr, pre other = type == :until ? :while : :until line = [block && block.line, expr.line].compact.min block, pre = block.last, false if block && block[0] == :begin expr = cond expr result = unless expr.first == :not and canonicalize_conditions then s(type, expr, block, pre) else s(other, expr.last, block, pre) end result.line = line result end |
#new_when(cond, body) ⇒ Object
815 816 817 |
# File 'lib/ruby_parser_extras.rb', line 815 def new_when cond, body s(:when, cond, body) end |
#new_while(block, expr, pre) ⇒ Object
819 820 821 |
# File 'lib/ruby_parser_extras.rb', line 819 def new_while block, expr, pre new_until_or_while :while, block, expr, pre end |
#new_xstring(str) ⇒ Object
823 824 825 826 827 828 829 830 831 832 833 834 835 836 837 |
# File 'lib/ruby_parser_extras.rb', line 823 def new_xstring str if str then case str[0] when :str str[0] = :xstr when :dstr str[0] = :dxstr else str = s(:dxstr, '', str) end str else s(:xstr, '') end end |
#new_yield(args = nil) ⇒ Object
839 840 841 842 843 844 845 846 847 848 849 850 851 852 |
# File 'lib/ruby_parser_extras.rb', line 839 def new_yield args = nil # TODO: raise args.inspect unless [:arglist].include? args.first # HACK raise "write a test 4" if args && args.node_type == :block_pass raise SyntaxError, "Block argument should not be given." if args && args.node_type == :block_pass args ||= s(:arglist) # TODO: I can prolly clean this up args[0] = :arglist if args.first == :array args = s(:arglist, args) unless args.first == :arglist return s(:yield, *args[1..-1]) end |
#next_token ⇒ Object
854 855 856 857 858 859 860 |
# File 'lib/ruby_parser_extras.rb', line 854 def next_token if self.lexer.advance then return self.lexer.token, self.lexer.yacc_value else return [false, '$end'] end end |
#node_assign(lhs, rhs) ⇒ Object
TODO: rename new_assign
862 863 864 865 866 867 868 869 870 871 872 873 874 875 876 877 878 879 880 881 |
# File 'lib/ruby_parser_extras.rb', line 862 def node_assign(lhs, rhs) # TODO: rename new_assign return nil unless lhs rhs = value_expr rhs case lhs[0] when :gasgn, :iasgn, :lasgn, :masgn, :cdecl, :cvdecl, :cvasgn then lhs << rhs when :attrasgn, :call then args = lhs.pop unless Symbol === lhs.last lhs.concat arg_add(args, rhs)[1..-1] when :const then lhs[0] = :cdecl lhs << rhs else raise "unknown lhs #{lhs.inspect}" end lhs end |
#on_error(et, ev, values) ⇒ Object
1054 1055 1056 1057 1058 1059 1060 1061 |
# File 'lib/ruby_parser_extras.rb', line 1054 def on_error(et, ev, values) super rescue Racc::ParseError => e # I don't like how the exception obscures the error message e..replace "%s:%p :: %s" % [self.file, lexer.lineno, e..strip] warn e. if $DEBUG raise end |
#process(str, file = "(string)", time = 10) ⇒ Object Also known as: parse
Parse str
at path file
and return a sexp. Raises Timeout::Error if it runs for more than time
seconds.
970 971 972 973 974 975 976 977 978 979 980 981 982 983 |
# File 'lib/ruby_parser_extras.rb', line 970 def process(str, file = "(string)", time = 10) Timeout.timeout time do raise "bad val: #{str.inspect}" unless String === str str = handle_encoding str self.file = file.dup self.lexer.src = str @yydebug = ENV.has_key? 'DEBUG' do_parse end end |
#remove_begin(node) ⇒ Object
987 988 989 990 991 992 993 994 |
# File 'lib/ruby_parser_extras.rb', line 987 def remove_begin node oldnode = node if node and :begin == node[0] and node.size == 2 then node = node[-1] node.line = oldnode.line end node end |
#reset ⇒ Object
996 997 998 999 1000 1001 1002 |
# File 'lib/ruby_parser_extras.rb', line 996 def reset lexer.reset self.in_def = false self.in_single = 0 self.env.reset self.comments.clear end |
#ret_args(node) ⇒ Object
1009 1010 1011 1012 1013 1014 1015 1016 1017 1018 1019 1020 1021 1022 1023 1024 |
# File 'lib/ruby_parser_extras.rb', line 1009 def ret_args node if node then raise "write a test 5" if node[0] == :block_pass raise SyntaxError, "block argument should not be given" if node[0] == :block_pass node = node.last if node[0] == :array && node.size == 2 # HACK matz wraps ONE of the FOUR splats in a newline to # distinguish. I use paren for now. ugh node = s(:svalue, node) if node[0] == :splat and not node.paren node[0] = :svalue if node[0] == :arglist && node[1][0] == :splat end node end |
#s(*args) ⇒ Object
1026 1027 1028 1029 1030 1031 |
# File 'lib/ruby_parser_extras.rb', line 1026 def s(*args) result = Sexp.new(*args) result.line ||= lexer.lineno if lexer.src # otherwise... result.file = self.file result end |
#syntax_error(msg) ⇒ Object Also known as: yyerror
116 117 118 |
# File 'lib/ruby_parser_extras.rb', line 116 def syntax_error msg raise RubyParser::SyntaxError, msg end |
#value_expr(oldnode) ⇒ Object
HACK
1033 1034 1035 1036 1037 1038 |
# File 'lib/ruby_parser_extras.rb', line 1033 def value_expr oldnode # HACK node = remove_begin oldnode node.line = oldnode.line if oldnode node[2] = value_expr(node[2]) if node and node[0] == :if node end |
#void_stmts(node) ⇒ Object
1040 1041 1042 1043 1044 1045 1046 |
# File 'lib/ruby_parser_extras.rb', line 1040 def void_stmts node return nil unless node return node unless node[0] == :block node[1..-1] = node[1..-1].map { |n| remove_begin(n) } node end |
#warning(s) ⇒ Object
1048 1049 1050 |
# File 'lib/ruby_parser_extras.rb', line 1048 def warning s # do nothing for now end |