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Original file line number | Diff line number | Diff line change |
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@@ -1,41 +1,44 @@ | ||
# frozen_string_literal: true | ||
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module Mutant | ||
# AST helpers | ||
module AST | ||
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# Find last node satisfying predicate (as block) | ||
# | ||
# @return [Parser::AST::Node] | ||
# if satisfying node is found | ||
# | ||
# @yield [Parser::AST::Node] | ||
# | ||
# @yieldreturn [Boolean] | ||
# true in case node satisfies predicate | ||
# | ||
# @return [nil] | ||
# otherwise | ||
def self.find_last_path(node, &predicate) | ||
fail ArgumentError, 'block expected' unless block_given? | ||
path = [] | ||
walk(node, [node]) do |candidate, stack| | ||
if predicate.call(candidate) | ||
path = stack.dup | ||
end | ||
class AST | ||
include Adamantium, Anima.new( | ||
:node, | ||
:comment_associations | ||
) | ||
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class View | ||
include Adamantium, Anima.new(:node, :path) | ||
end | ||
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def view(symbol) | ||
type_map.fetch(symbol, EMPTY_HASH).map do |node, path| | ||
View.new(node: node, path: path) | ||
end | ||
path | ||
end | ||
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def self.walk(node, stack, &block) | ||
block.call(node, stack) | ||
private | ||
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def type_map | ||
type_map = {} | ||
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AST.walk_path(node) do |node, path| | ||
path_map = type_map[node.type] ||= {}.tap(&:compare_by_identity) | ||
path_map[node] = path | ||
end | ||
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type_map | ||
end | ||
memoize :type_map | ||
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def self.walk_path(node, stack = [], &block) | ||
block.call(node, stack.dup.freeze) | ||
node.children.grep(::Parser::AST::Node) do |child| | ||
stack.push(child) | ||
walk(child, stack, &block) | ||
walk_path(child, stack, &block) | ||
stack.pop | ||
end | ||
end | ||
private_class_method :walk | ||
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end # AST | ||
end # Mutant |
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Original file line number | Diff line number | Diff line change |
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@@ -1,7 +1,7 @@ | ||
# frozen_string_literal: true | ||
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module Mutant | ||
module AST | ||
class AST | ||
# Node meta information mixin | ||
module Meta | ||
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|
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Original file line number | Diff line number | Diff line change |
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@@ -1,7 +1,7 @@ | ||
# frozen_string_literal: true | ||
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module Mutant | ||
module AST | ||
class AST | ||
# Node meta information mixin | ||
module Meta | ||
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|
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Original file line number | Diff line number | Diff line change |
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@@ -1,7 +1,7 @@ | ||
# frozen_string_literal: true | ||
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module Mutant | ||
module AST | ||
class AST | ||
# Node meta information mixin | ||
module Meta | ||
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|
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Original file line number | Diff line number | Diff line change |
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@@ -1,7 +1,7 @@ | ||
# frozen_string_literal: true | ||
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module Mutant | ||
module AST | ||
class AST | ||
# Node meta information mixin | ||
module Meta | ||
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||
|
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Original file line number | Diff line number | Diff line change |
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@@ -1,7 +1,7 @@ | ||
# frozen_string_literal: true | ||
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module Mutant | ||
module AST | ||
class AST | ||
# Node meta information mixin | ||
module Meta | ||
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||
|
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Original file line number | Diff line number | Diff line change |
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@@ -1,7 +1,7 @@ | ||
# frozen_string_literal: true | ||
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module Mutant | ||
module AST | ||
class AST | ||
# Singleton nodes | ||
module Nodes | ||
extend Sexp | ||
|
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Original file line number | Diff line number | Diff line change |
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@@ -1,7 +1,7 @@ | ||
# frozen_string_literal: true | ||
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module Mutant | ||
module AST | ||
class AST | ||
class Pattern | ||
include Adamantium | ||
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|
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Original file line number | Diff line number | Diff line change |
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@@ -1,7 +1,7 @@ | ||
# frozen_string_literal: true | ||
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module Mutant | ||
module AST | ||
class AST | ||
module Regexp | ||
# Regexp bijective mapper | ||
# | ||
|
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Original file line number | Diff line number | Diff line change |
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@@ -1,7 +1,7 @@ | ||
# frozen_string_literal: true | ||
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module Mutant | ||
module AST | ||
class AST | ||
# Mixin for node sexp syntax | ||
module Sexp | ||
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||
|
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