class Byebug::ConditionCommand
Implements conditions on breakpoints.
Adds the ability to stop on breakpoints only under certain conditions.
Public Class Methods
description()
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# File lib/byebug/commands/condition.rb, line 40 def description prettify <<-EOD cond[ition] <n>[ expr] Specify breakpoint number <n> to break only if <expr> is true. <n> is an integer and <expr> is an expression to be evaluated whenever breakpoint <n> is reached. If no expression is specified, the condition is removed. EOD end
names()
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# File lib/byebug/commands/condition.rb, line 36 def names %w(condition) end
Public Instance Methods
execute()
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# File lib/byebug/commands/condition.rb, line 16 def execute return puts(self.class.help) unless @match[1] breakpoints = Byebug.breakpoints.sort_by(&:id) return errmsg(pr('condition.errors.no_breakpoints')) if breakpoints.empty? pos, err = get_int(@match[1], 'Condition', 1) return errmsg(err) if err breakpoint = breakpoints.find { |b| b.id == pos } return errmsg(pr('break.errors.no_breakpoint')) unless breakpoint unless syntax_valid?(@match[2]) return errmsg(pr('break.errors.not_changed', expr: @match[2])) end breakpoint.expr = @match[2] end
regexp()
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# File lib/byebug/commands/condition.rb, line 12 def regexp /^\s* cond(?:ition)? (?:\s+(\d+)(?:\s+(.*))?)? \s*$/x end