class RuboCop::AST::NodePattern::Parser
Parser
for NodePattern
Note: class reopened in `parser.racc`
Doc on how this fits in the compiling process:
/docs/modules/ROOT/pages/node_pattern.adoc
Constants
- Builder
- Lexer
- Racc_arg
- Racc_debug_parser
- Racc_token_to_s_table
Public Class Methods
new(builder = self.class::Builder.new)
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Calls superclass method
# File lib/rubocop/ast/node_pattern/parser.rb, line 19 def initialize(builder = self.class::Builder.new) super() @builder = builder end
Public Instance Methods
_reduce_10(val, _values)
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# File lib/rubocop/ast/node_pattern/parser.racc.rb, line 333 def _reduce_10(val, _values) emit_call :predicate, *val end
_reduce_11(val, _values)
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# File lib/rubocop/ast/node_pattern/parser.racc.rb, line 337 def _reduce_11(val, _values) emit_call :node_type, *val end
_reduce_13(val, _values)
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reduce 12 omitted
# File lib/rubocop/ast/node_pattern/parser.racc.rb, line 343 def _reduce_13(val, _values) emit_atom :symbol, *val end
_reduce_14(val, _values)
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# File lib/rubocop/ast/node_pattern/parser.racc.rb, line 347 def _reduce_14(val, _values) emit_atom :number, *val end
_reduce_15(val, _values)
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# File lib/rubocop/ast/node_pattern/parser.racc.rb, line 351 def _reduce_15(val, _values) emit_atom :string, *val end
_reduce_16(val, _values)
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# File lib/rubocop/ast/node_pattern/parser.racc.rb, line 355 def _reduce_16(val, _values) emit_atom :const, *val end
_reduce_17(val, _values)
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# File lib/rubocop/ast/node_pattern/parser.racc.rb, line 359 def _reduce_17(val, _values) emit_atom :named_parameter, *val end
_reduce_18(val, _values)
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# File lib/rubocop/ast/node_pattern/parser.racc.rb, line 363 def _reduce_18(val, _values) emit_atom :positional_parameter, *val end
_reduce_19(val, _values)
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# File lib/rubocop/ast/node_pattern/parser.racc.rb, line 367 def _reduce_19(val, _values) emit_atom :regexp, *val end
_reduce_2(val, _values)
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reduce 1 omitted
# File lib/rubocop/ast/node_pattern/parser.racc.rb, line 301 def _reduce_2(val, _values) enforce_unary(val[0]) end
_reduce_20(val, _values)
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# File lib/rubocop/ast/node_pattern/parser.racc.rb, line 371 def _reduce_20(val, _values) emit_atom :wildcard, *val end
_reduce_21(val, _values)
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# File lib/rubocop/ast/node_pattern/parser.racc.rb, line 375 def _reduce_21(val, _values) emit_atom :unify, *val end
_reduce_22(val, _values)
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# File lib/rubocop/ast/node_pattern/parser.racc.rb, line 379 def _reduce_22(val, _values) emit_union(*val) end
_reduce_25(val, _values)
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reduce 24 omitted
# File lib/rubocop/ast/node_pattern/parser.racc.rb, line 387 def _reduce_25(val, _values) main, repeat_t = val emit_unary_op(:repetition, repeat_t, main, repeat_t) end
_reduce_26(val, _values)
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# File lib/rubocop/ast/node_pattern/parser.racc.rb, line 393 def _reduce_26(val, _values) opt_capture, bracket, node_pattern_list, opt_rest, close_bracket = val node_pattern_list << opt_rest if opt_rest main = emit_list :any_order, bracket, node_pattern_list, close_bracket emit_capture(opt_capture, main) end
_reduce_3(val, _values)
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# File lib/rubocop/ast/node_pattern/parser.racc.rb, line 305 def _reduce_3(val, _values) emit_list :sequence, *val end
_reduce_33(val, _values)
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reduce 32 omitted
# File lib/rubocop/ast/node_pattern/parser.racc.rb, line 413 def _reduce_33(val, _values) emit_capture(val[0], emit_atom(:rest, val[1])) end
_reduce_37(val, _values)
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reduce 36 omitted
# File lib/rubocop/ast/node_pattern/parser.racc.rb, line 423 def _reduce_37(val, _values) val end
_reduce_38(val, _values)
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# File lib/rubocop/ast/node_pattern/parser.racc.rb, line 427 def _reduce_38(val, _values) val end
_reduce_39(val, _values)
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# File lib/rubocop/ast/node_pattern/parser.racc.rb, line 431 def _reduce_39(val, _values) val[0] << val[2] end
_reduce_4(val, _values)
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# File lib/rubocop/ast/node_pattern/parser.racc.rb, line 309 def _reduce_4(val, _values) emit_list :intersection, *val end
_reduce_40(val, _values)
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# File lib/rubocop/ast/node_pattern/parser.racc.rb, line 435 def _reduce_40(val, _values) val end
_reduce_41(val, _values)
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# File lib/rubocop/ast/node_pattern/parser.racc.rb, line 439 def _reduce_41(val, _values) val[0] << val[1] end
_reduce_42(val, _values)
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# File lib/rubocop/ast/node_pattern/parser.racc.rb, line 443 def _reduce_42(val, _values) val end
_reduce_43(val, _values)
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# File lib/rubocop/ast/node_pattern/parser.racc.rb, line 447 def _reduce_43(val, _values) val[0] << val[1] end
_reduce_44(val, _values)
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# File lib/rubocop/ast/node_pattern/parser.racc.rb, line 451 def _reduce_44(val, _values) [[]] end
_reduce_45(val, _values)
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# File lib/rubocop/ast/node_pattern/parser.racc.rb, line 455 def _reduce_45(val, _values) val[0].last << val[1]; val[0] end
_reduce_46(val, _values)
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# File lib/rubocop/ast/node_pattern/parser.racc.rb, line 459 def _reduce_46(val, _values) val[0] << [] end
_reduce_5(val, _values)
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# File lib/rubocop/ast/node_pattern/parser.racc.rb, line 313 def _reduce_5(val, _values) emit_unary_op :negation, *val end
_reduce_6(val, _values)
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# File lib/rubocop/ast/node_pattern/parser.racc.rb, line 317 def _reduce_6(val, _values) emit_unary_op :ascend, *val end
_reduce_7(val, _values)
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# File lib/rubocop/ast/node_pattern/parser.racc.rb, line 321 def _reduce_7(val, _values) emit_unary_op :descend, *val end
_reduce_8(val, _values)
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# File lib/rubocop/ast/node_pattern/parser.racc.rb, line 325 def _reduce_8(val, _values) emit_capture(*val) end
_reduce_9(val, _values)
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# File lib/rubocop/ast/node_pattern/parser.racc.rb, line 329 def _reduce_9(val, _values) emit_call :function_call, *val end
_reduce_none(val, _values)
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# File lib/rubocop/ast/node_pattern/parser.racc.rb, line 463 def _reduce_none(val, _values) val[0] end
inspect()
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# File lib/rubocop/ast/node_pattern/parser.rb, line 40 def inspect "<##{self.class}>" end
parse(source)
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(Similar API to `parser` gem) Parses a source and returns the AST
.
@param [Parser::Source::Buffer, String] source_buffer The source buffer to parse. @return [NodePattern::Node]
# File lib/rubocop/ast/node_pattern/parser.rb, line 31 def parse(source) @lexer = self.class::Lexer.new(source) do_parse rescue Lexer::Error => e raise NodePattern::Invalid, e.message ensure @lexer = nil # Don't keep references end
Private Instance Methods
enforce_unary(node)
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# File lib/rubocop/ast/node_pattern/parser.rb, line 50 def enforce_unary(node) return node if node.arity == 1 detail = node.loc&.expression&.source || node.to_s raise NodePattern::Invalid, 'parse error, expected unary node pattern ' \ "but got expression matching multiple elements: #{detail}" end
on_error(token, val, _vstack)
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Overrides Racc::Parser's method:
# File lib/rubocop/ast/node_pattern/parser.rb, line 59 def on_error(token, val, _vstack) detail = token_to_str(token) || '?' raise NodePattern::Invalid, "parse error on value #{val.inspect} (#{detail})" end