class Byebug::BreakCommand
Implements breakpoint functionality
Public Class Methods
description()
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# File lib/byebug/commands/break.rb, line 35 def description prettify <<-EOD b[reak] [file:]line [if expr] b[reak] [module::...]class(.|#)method [if expr] Set breakpoint to some position, (optionally) if expr == true EOD end
names()
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# File lib/byebug/commands/break.rb, line 31 def names %w(break) end
Public Instance Methods
execute()
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# File lib/byebug/commands/break.rb, line 15 def execute return puts(self.class.help) unless @match[1] b = line_breakpoint(@match[1]) || method_breakpoint(@match[1]) if syntax_valid?(@match[2]) return puts(pr('break.created', id: b.id, file: b.source, line: b.pos)) end errmsg(pr('break.errors.expression', expr: @match[2])) b.enabled = false rescue => e errmsg(e.message) end
regexp()
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# File lib/byebug/commands/break.rb, line 11 def regexp /^\s* b(?:reak)? (?:\s+ (\S+))? (?:\s+ if \s+(.+))? \s*$/x end
Private Instance Methods
check_errors(file, line)
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# File lib/byebug/commands/break.rb, line 69 def check_errors(file, line) path, deco_path = File.expand_path(file), normalize(file) fail(pr('break.errors.source', file: deco_path)) unless File.exist?(path) if line > n_lines(file) fail(pr('break.errors.far_line', lines: n_lines(file), file: deco_path)) end return if Breakpoint.potential_line?(path, line) fail(pr('break.errors.line', file: deco_path, line: line)) end
line_breakpoint(loc)
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# File lib/byebug/commands/break.rb, line 47 def line_breakpoint(loc) line, file_line = loc.match(/^(\d+)$/), loc.match(/^([^:]+):(\d+)$/) return nil unless line || file_line f, l = line ? [@state.file, line[1]] : [file_line[1], file_line[2]] check_errors(f, l.to_i) Breakpoint.add(File.expand_path(f), l.to_i, @match[2]) end
method_breakpoint(location)
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# File lib/byebug/commands/break.rb, line 58 def method_breakpoint(location) location.match(/([^.#]+)[.#](.+)/) do |match| k, m = bb_warning_eval(match[1]), match[2] klass = k && k.is_a?(Module) ? k.name : match[1] method = m.intern Breakpoint.add(klass, method, @match[2]) end end