Class: ProductionBreakpoints::Breakpoints::Base

Inherits:
Object
  • Object
show all
Defined in:
lib/ruby-production-breakpoints/breakpoints/base.rb

Direct Known Subclasses

Inspect, Latency, Locals

Constant Summary collapse

TRACEPOINT_TYPES = 
[].freeze

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(source_file, start_line, end_line, trace_id: 1) ⇒ Base

Returns a new instance of Base.



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# File 'lib/ruby-production-breakpoints/breakpoints/base.rb', line 13

def initialize(source_file, start_line, end_line, trace_id: 1)
  @injector_module = nil
  @source_file = source_file
  @start_line = start_line
  @end_line = end_line
  @trace_id = trace_id
  @method = self.class.name.split('::').last.downcase
  @parser = ProductionBreakpoints::Parser.new(@source_file)
  @node = @parser.find_definition_node(@start_line, @end_line)
  @method_override = ProductionBreakpoints::MethodOverride.new(@parser, start_line, end_line)
  @ns = Object.const_get(@parser.find_definition_namespace(@node)) # FIXME: error handling, if not found
  @provider_name = File.basename(@source_file).gsub('.', '_')
  @name = "#{@method}_#{@trace_id}"
  @tracepoint = StaticTracing::Tracepoint.new(@provider_name, @name, *self.class.const_get('TRACEPOINT_TYPES'))
end

Instance Attribute Details

#name ⇒ Object (readonly)

Returns the value of attribute name.



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# File 'lib/ruby-production-breakpoints/breakpoints/base.rb', line 11

def name
  @name
end

#provider_name ⇒ Object (readonly)

Returns the value of attribute provider_name.



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# File 'lib/ruby-production-breakpoints/breakpoints/base.rb', line 11

def provider_name
  @provider_name
end

#tracepoint ⇒ Object (readonly)

Returns the value of attribute tracepoint.



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# File 'lib/ruby-production-breakpoints/breakpoints/base.rb', line 11

def tracepoint
  @tracepoint
end

Instance Method Details

#handle(caller_binding) ⇒ Object

Allows for specific handling of the selected lines



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# File 'lib/ruby-production-breakpoints/breakpoints/base.rb', line 49

def handle(caller_binding)
  eval(@method_override.handler_src.join, caller_binding)
end

#install ⇒ Object 



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# File 'lib/ruby-production-breakpoints/breakpoints/base.rb', line 29

def install
  @injector_module = build_redefined_definition_module(@node)
  @ns.prepend(@injector_module)
end

#load ⇒ Object 



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# File 'lib/ruby-production-breakpoints/breakpoints/base.rb', line 40

def load
  @tracepoint.provider.enable
end

#resume(caller_binding) ⇒ Object 



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# File 'lib/ruby-production-breakpoints/breakpoints/base.rb', line 53

def resume(caller_binding)
  eval(@method_override.resume_src.join, caller_binding) if @method_override.resume_src
end

#uninstall ⇒ Object

FIXME: saftey if already uninstalled



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# File 'lib/ruby-production-breakpoints/breakpoints/base.rb', line 35

def uninstall
  @ns.instance_eval { unprepend(@injector_module) }
  @injector_module = nil
end

#unload ⇒ Object 



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# File 'lib/ruby-production-breakpoints/breakpoints/base.rb', line 44

def unload
  @tracepoint.provider.disable
end