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# frozen_string_literal: true
module SyntaxSuggest
# This class is responsible for generating initial code blocks
# that will then later be expanded.
#
# The biggest concern when guessing code blocks, is accidentally
# grabbing one that contains only an "end". In this example:
#
# def dog
# begonn # mispelled `begin`
# puts "bark"
# end
# end
#
# The following lines would be matched (from bottom to top):
#
# 1) end
#
# 2) puts "bark"
# end
#
# 3) begonn
# puts "bark"
# end
#
# At this point it has no where else to expand, and it will yield this inner
# code as a block
class ParseBlocksFromIndentLine
attr_reader :code_lines
def initialize(code_lines:)
@code_lines = code_lines
end
# Builds blocks from bottom up
def each_neighbor_block(target_line)
scan = AroundBlockScan.new(code_lines: code_lines, block: CodeBlock.new(lines: target_line))
.force_add_empty
.force_add_hidden
.scan_while { |line| line.indent >= target_line.indent }
neighbors = scan.code_block.lines
block = CodeBlock.new(lines: neighbors)
if neighbors.length <= 2 || block.valid?
yield block
else
until neighbors.empty?
lines = [neighbors.pop]
while (block = CodeBlock.new(lines: lines)) && block.invalid? && neighbors.any?
lines.prepend neighbors.pop
end
yield block if block
end
end
end
end
end