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Contents
module Debugger
# Implements debugger "jump" command
class JumpCommand < Command
self.need_context = true
def numeric?(object)
true if Float(object) rescue false
end
def regexp
/ ^\s*
j(?:ump)? \s*
(?:\s+(\S+))?\s*
(?:\s+(\S+))?\s*
$
/ix
end
def execute
unless @state.context.respond_to?(:jump)
print_msg "Not implemented"
return
end
if !@match[1]
print_msg "\"jump\" must be followed by a line number"
return
end
if !numeric?(@match[1])
print_msg "Bad line number: " + @match[1]
return
end
line = @match[1].to_i
line = @state.context.frame_line(0) + line if @match[1][0] == '+' or @match[1][0] == '-'
if line == @state.context.frame_line(0)
return
end
file = @match[2]
file = @state.context.frame_file(file.to_i) if numeric?(file)
file = @state.context.frame_file(0) if !file
case @state.context.jump(line, file)
when 0
@state.proceed
return
when 1
print_msg "Not possible to jump from here"
when 2
print_msg "Couldn't find debugged frame"
when 3
print_msg "Couldn't find active code at " + file + ":" + line.to_s
else
print_msg "Unknown error occurred"
end
@printer.print_at_line(@state.context, @state.context.frame_file, @state.context.frame_line)
end
class << self
def help_command
%w[jump]
end
def help(cmd)
%{
j[ump] line\tjump to line number (absolute)
j[ump] -line\tjump back to line (relative)
j[ump] +line\tjump ahead to line (relative)
Change the next line of code to be executed.
}
end
end
end
end
Version data entries
60 entries across 52 versions & 5 rubygems