Class: HDLRuby::Low::Event
- Inherits:
-
Object
- Object
- HDLRuby::Low::Event
- Includes:
- Hparent, Low2Symbol
- Defined in:
- lib/HDLRuby/hruby_low.rb,
lib/HDLRuby/hruby_low2c.rb,
lib/HDLRuby/hruby_low2hdr.rb,
lib/HDLRuby/hruby_low2sym.rb,
lib/HDLRuby/hruby_low2vhd.rb,
lib/HDLRuby/hruby_low2high.rb,
lib/HDLRuby/hruby_low_mutable.rb,
lib/HDLRuby/hruby_low_skeleton.rb
Overview
Describes an event.
Direct Known Subclasses
Constant Summary
Constants included from Low2Symbol
Low2Symbol::Low2SymbolPrefix, Low2Symbol::Low2SymbolTable, Low2Symbol::Symbol2LowTable
Instance Attribute Summary collapse
-
#ref ⇒ Object
readonly
The reference of the event.
-
#type ⇒ Object
readonly
The type of event.
Attributes included from Hparent
Instance Method Summary collapse
-
#each_deep(&ruby_block) ⇒ Object
Iterates over each object deeply.
-
#eql?(obj) ⇒ Boolean
Comparison for hash: structural comparison.
-
#hash ⇒ Object
Hash function.
-
#initialize(type, ref) ⇒ Event
constructor
Creates a new +type+ sort of event on signal refered by +ref+.
-
#on_edge? ⇒ Boolean
Tells if there is a positive or negative edge event.
-
#reassign_expressions!(node2reassign) ⇒ Object
Replace node by corresponding replacement from +node2reassign+ that is a table whose entries are: +node+ the node to replace +rep+ the replacement of the node +ref+ the reference where to reassign the node.
-
#set_ref!(ref) ⇒ Object
Sets the reference to +ref+.
-
#set_type!(type) ⇒ Object
Sets the type.
-
#to_c(res, level = 0) ⇒ Object
Generates the C text of the equivalent HDLRuby code.
-
#to_hdr(level = 0) ⇒ Object
Generates the text of the equivalent hdr text.
-
#to_high ⇒ Object
Creates a new high event.
Methods included from Low2Symbol
Methods included from Hparent
#hierarchy, #no_parent!, #scope
Constructor Details
#initialize(type, ref) ⇒ Event
Creates a new +type+ sort of event on signal refered by +ref+.
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# File 'lib/HDLRuby/hruby_low.rb', line 2553 def initialize(type,ref) # Check and set the type. @type = type.to_sym # Check and set the reference. unless ref.is_a?(Ref) raise AnyError, "Invalid class for a reference: #{ref.class}" end @ref = ref # And set the parent of ref. ref.parent = self end |
Instance Attribute Details
#ref ⇒ Object (readonly)
The reference of the event.
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# File 'lib/HDLRuby/hruby_low.rb', line 2550 def ref @ref end |
#type ⇒ Object (readonly)
The type of event.
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# File 'lib/HDLRuby/hruby_low.rb', line 2547 def type @type end |
Instance Method Details
#each_deep(&ruby_block) ⇒ Object
Iterates over each object deeply.
Returns an enumerator if no ruby block is given.
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# File 'lib/HDLRuby/hruby_low.rb', line 2591 def each_deep(&ruby_block) # No ruby block? Return an enumerator. return to_enum(:each_deep) unless ruby_block # A ruby block? First apply it to current. ruby_block.call(self) # Then apply on the type. self.type.each_deep(&ruby_block) # Then apply on the reference. self.ref.each_deep(&ruby_block) end |
#eql?(obj) ⇒ Boolean
Comparison for hash: structural comparison.
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# File 'lib/HDLRuby/hruby_low.rb', line 2569 def eql?(obj) return false unless obj.is_a?(Event) return false unless @type.eql?(obj.type) return false unless @ref.eql?(obj.ref) return true end |
#hash ⇒ Object
Hash function.
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# File 'lib/HDLRuby/hruby_low.rb', line 2577 def hash return [@type,@ref].hash end |
#on_edge? ⇒ Boolean
Tells if there is a positive or negative edge event.
NOTE: checks if the event type is :posedge or :negedge
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# File 'lib/HDLRuby/hruby_low.rb', line 2584 def on_edge? return (@type == :posedge or @type == :negedge) end |
#reassign_expressions!(node2reassign) ⇒ Object
Replace node by corresponding replacement from +node2reassign+ that is a table whose entries are: +node+ the node to replace +rep+ the replacement of the node +ref+ the reference where to reassign the node.
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# File 'lib/HDLRuby/hruby_low_mutable.rb', line 437 def reassign_expressions!(node2reassign) # Build the replacement table. node2rep = node2reassign.map {|n,r| [n,r[0]] }.to_h # Performs the replacement. node2rep_done = {} # The performed replacements. # Replace on the sons of the reference. node2rep_done.merge!(self.ref.replace_expressions!(node2rep)) # Shall we replace the ref? rep = node2rep[self.ref] if rep then # Yes, do it. rep = rep.clone node = self.ref # node.set_parent!(nil) self.set_ref!(rep) node2rep_done[node] = rep end # Assign the replaced nodes. node2rep_done.each do |node,rep| reassign = node2reassign[node][1].clone self.parent.parent. add_connection(Connection.new(reassign,node.clone)) end end |
#set_ref!(ref) ⇒ Object
Sets the reference to +ref+.
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# File 'lib/HDLRuby/hruby_low_mutable.rb', line 424 def set_ref!(ref) # Check and set the reference. unless ref.is_a?(Ref) raise AnyError, "Invalid class for a reference: #{ref.class}" end @ref = ref end |
#set_type!(type) ⇒ Object
Sets the type.
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# File 'lib/HDLRuby/hruby_low_mutable.rb', line 418 def set_type!(type) # Check and set the type. @type = type.to_sym end |
#to_c(res, level = 0) ⇒ Object
Generates the C text of the equivalent HDLRuby code. +level+ is the hierachical level of the object. def to_c(level = 0)
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# File 'lib/HDLRuby/hruby_low2c.rb', line 863 def to_c(res,level = 0) edge = "ANYEDGE" edge = "POSEDGE" if self.type == :posedge edge = "NEGEDGE" if self.type == :negedge # return "make_event(#{edge}," + # "#{self.ref.resolve.to_c_signal(level+1)})" res << "make_event(#{edge}," self.ref.resolve.to_c_signal(res,level+1) res << ")" return res end |
#to_hdr(level = 0) ⇒ Object
Generates the text of the equivalent hdr text. +level+ is the hierachical level of the object.
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# File 'lib/HDLRuby/hruby_low2hdr.rb', line 298 def to_hdr(level = 0) return self.ref.to_hdr(level) + ".#{self.type}" end |