Class: HDLRuby::Low::Print
- Defined in:
- lib/HDLRuby/hruby_low.rb,
lib/HDLRuby/hruby_low2c.rb,
lib/HDLRuby/hruby_low2vhd.rb,
lib/HDLRuby/hruby_verilog.rb,
lib/HDLRuby/hruby_low2high.rb,
lib/HDLRuby/hruby_low_mutable.rb,
lib/HDLRuby/hruby_low_fix_types.rb,
lib/HDLRuby/hruby_low_bool2select.rb,
lib/HDLRuby/hruby_low_without_select.rb,
lib/HDLRuby/hruby_low_casts_without_expression.rb
Overview
Extends the Print class with functionality for extracting expressions from cast.
Direct Known Subclasses
Constant Summary
Constants included from Low2Symbol
Low2Symbol::Low2SymbolPrefix, Low2Symbol::Low2SymbolTable, Low2Symbol::Symbol2LowTable
Instance Attribute Summary
Attributes included from Hparent
Instance Method Summary collapse
-
#boolean_in_assign2select! ⇒ Object
Converts booleans in assignments to select operators.
-
#casts_without_expression! ⇒ Object
Extracts the expressions from the casts.
-
#clone ⇒ Object
Clones the TimeWait (deeply).
-
#delete_arg!(arg) ⇒ Object
Delete an arg.
-
#each_arg(&ruby_block) ⇒ Object
Iterates over each argument.
-
#each_block(&ruby_block) ⇒ Object
Iterates over the sub blocks.
-
#each_block_deep(&ruby_block) ⇒ Object
Iterates over all the blocks contained in the current block.
-
#each_deep(&ruby_block) ⇒ Object
Iterates over each object deeply.
-
#each_node(&ruby_block) ⇒ Object
Iterates over the expression children if any.
-
#each_node_deep(&ruby_block) ⇒ Object
Iterates over the nodes deeply if any.
-
#each_statement_deep(&ruby_block) ⇒ Object
Iterates over all the statements contained in the current block.
-
#eql?(obj) ⇒ Boolean
Comparison for hash: structural comparison.
-
#explicit_types! ⇒ Object
Explicit the types conversions in the statement.
-
#extract_selects! ⇒ Object
Extract the Select expressions.
-
#hash ⇒ Object
Hash function.
-
#initialize(*args) ⇒ Print
constructor
Creates a new statement for printing +args+.
-
#map_args!(&ruby_block) ⇒ Object
(also: #map_nodes!)
Maps on the arguments.
-
#replace_args!(node2rep) ⇒ Object
Replaces sub arguments using +node2rep+ table indicating the node to replace and the corresponding replacement.
-
#to_c(res, level = 0) ⇒ Object
Generates the C text of the equivalent HDLRuby code.
-
#to_high ⇒ Object
Creates a new high print statement.
-
#to_verilog(spc = 3) ⇒ Object
Converts the print to Verilog code.
-
#to_vhdl(vars, level = 0) ⇒ Object
Generates the text of the equivalent HDLRuby::High code.
Methods inherited from Statement
#add_blocks_code, #add_make_block, #behavior, #block, #blocks2seq!, #break_types!, #delete_related!, #delete_unless!, #each_statement, #extract_declares!, #mix?, #par_in_seq2seq!, #parent_system, #replace_expressions!, #replace_names!, #scope, #to_ch, #to_hdr, #to_seq!, #to_upper_space!, #top_block, #top_scope, #use_name?, #with_boolean!
Methods included from Low2Symbol
Methods included from Hparent
#hierarchy, #no_parent!, #scope
Constructor Details
#initialize(*args) ⇒ Print
Creates a new statement for printing +args+.
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# File 'lib/HDLRuby/hruby_low.rb', line 3753 def initialize(*args) super() # Process the arguments. @args = args.map do |arg| arg.parent = self arg end end |
Instance Method Details
#boolean_in_assign2select! ⇒ Object
Converts booleans in assignments to select operators.
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# File 'lib/HDLRuby/hruby_low_bool2select.rb', line 71 def boolean_in_assign2select! # Apply on the arguments. self.map_args! { |arg| arg.boolean_in_assign2select } return self end |
#casts_without_expression! ⇒ Object
Extracts the expressions from the casts.
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# File 'lib/HDLRuby/hruby_low_casts_without_expression.rb', line 72 def casts_without_expression! # Apply on the arguments. self.map_args!(&:casts_without_expression!) return self end |
#clone ⇒ Object
Clones the TimeWait (deeply)
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# File 'lib/HDLRuby/hruby_low.rb', line 3799 def clone return Print.new(*@args.map { |arg| arg.clone }) end |
#delete_arg!(arg) ⇒ Object
Delete an arg.
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# File 'lib/HDLRuby/hruby_low_mutable.rb', line 657 def delete_arg!(arg) if @args.include?(arg) then # The arg is present, delete it. @args.delete(arg) # And remove its parent. arg.parent = nil end arg end |
#each_arg(&ruby_block) ⇒ Object
Iterates over each argument.
Returns an enumerator if no ruby block is given.
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# File 'lib/HDLRuby/hruby_low.rb', line 3774 def each_arg(&ruby_block) # No ruby block? Return an enumerator. return to_enum(:each_arg) unless ruby_block # A ruby block? First apply it to each argument. @args.each(&ruby_block) end |
#each_block(&ruby_block) ⇒ Object
Iterates over the sub blocks.
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# File 'lib/HDLRuby/hruby_low.rb', line 3823 def each_block(&ruby_block) # No ruby block? Return an enumerator. return to_enum(:each_block) unless ruby_block # A ruby block? # Recurse on each argument. @args.each do |arg| arg.each_block(&ruby_block) if arg.respond_to?(:each_block) end end |
#each_block_deep(&ruby_block) ⇒ Object
Iterates over all the blocks contained in the current block.
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# File 'lib/HDLRuby/hruby_low.rb', line 3834 def each_block_deep(&ruby_block) # No ruby block? Return an enumerator. return to_enum(:each_block_deep) unless ruby_block # A ruby block? # Recurse on each argument. @args.each do |arg| if arg.respond_to?(:each_block_deep) then arg.each_block_deep(&ruby_block) end end end |
#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 3784 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 arguments. self.each_arg(&ruby_block) end |
#each_node(&ruby_block) ⇒ Object
Iterates over the expression children if any.
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# File 'lib/HDLRuby/hruby_low.rb', line 3804 def each_node(&ruby_block) # No ruby block? Return an enumerator. return to_enum(:each_node) unless ruby_block # A ruby block? # Apply it on each argument. @args.each(&ruby_block) end |
#each_node_deep(&ruby_block) ⇒ Object
Iterates over the nodes deeply if any.
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# File 'lib/HDLRuby/hruby_low.rb', line 3813 def each_node_deep(&ruby_block) # No ruby block? Return an enumerator. return to_enum(:each_node_deep) unless ruby_block # A ruby block? First apply it to current. ruby_block.call(self) # And apply it on each argument. @args.each(&ruby_block) end |
#each_statement_deep(&ruby_block) ⇒ Object
Iterates over all the statements contained in the current block.
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# File 'lib/HDLRuby/hruby_low.rb', line 3847 def each_statement_deep(&ruby_block) # No ruby block? Return an enumerator. return to_enum(:each_statement_deep) unless ruby_block # A ruby block? # Apply it on self. ruby_block.call(self) # Recurse on each argument. @args.each do |arg| if arg.respond_to?(:each_statement_deep) then arg.each_statement_deep(&ruby_block) end end end |
#eql?(obj) ⇒ Boolean
Comparison for hash: structural comparison.
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# File 'lib/HDLRuby/hruby_low.rb', line 3763 def eql?(obj) return false unless obj.is_a?(Print) return false if @args.each.zip(obj.each_arg).any? do |a0,a1| !a0.eql?(a1) end return true end |
#explicit_types! ⇒ Object
Explicit the types conversions in the statement.
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# File 'lib/HDLRuby/hruby_low_fix_types.rb', line 96 def explicit_types! # Recurse on the arguments. self.map_args!(&:explicit_types) return self end |
#extract_selects! ⇒ Object
Extract the Select expressions.
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# File 'lib/HDLRuby/hruby_low_without_select.rb', line 170 def extract_selects! selects = [] self.map_args! do |arg| arg.extract_selects_to!(selects) end return selects end |
#hash ⇒ Object
Hash function.
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# File 'lib/HDLRuby/hruby_low.rb', line 3794 def hash return @args.hash end |
#map_args!(&ruby_block) ⇒ Object Also known as: map_nodes!
Maps on the arguments.
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# File 'lib/HDLRuby/hruby_low_mutable.rb', line 646 def map_args!(&ruby_block) @args.map! do |arg| arg = ruby_block.call(arg) arg.parent = self unless arg.parent arg end end |
#replace_args!(node2rep) ⇒ Object
Replaces sub arguments using +node2rep+ table indicating the node to replace and the corresponding replacement. Returns the actually replaced nodes and their corresponding replacement.
NOTE: the replacement is duplicated.
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# File 'lib/HDLRuby/hruby_low_mutable.rb', line 673 def replace_args!(node2rep) # First recurse on the children. res = {} self.each_node do |node| res.merge!(node.replace_args!(node2rep)) end # Is there a replacement of on a sub node? self.map_nodes! do |sub| rep = node2rep[sub] if rep then # Yes, do it. rep = rep.clone node = sub # node.set_parent!(nil) # And register the replacement. res[node] = rep rep else sub end end return res 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)
def to_c(res,level = 0) # Save the state of the value pool. # res = (" " * ((level)*3)) res << (" " * ((level)*3)) res << " res << (" " * ((level+1)*3)) res << "unsigned int pool_state = get_value_pos();\n" # Perform the copy and the touching only if the new content # is different. res << (" " * ((level+1)*3)) # Is it a sequential execution model? seq = self.block.mode == :seq ? "_seq" : "" # Generate the print. self.each_arg do |arg| if (arg.is_a?(StringE)) then res << "printer.print_string(\"" + Low2C.c_string(arg.content) + "\");\n" elsif (arg.is_a?(Expression)) then # res << "printer.print_string_value(" + arg.to_c + ");\n" res << "printer.print_string_value(" arg.to_c(res) res << ");\n" else # res << "printer.print_string_name(" + arg.to_c + ");\n" res << "printer.print_string_name(" arg.to_c(res) res << ");\n" end end # Restore the value pool state. res << (" " * ((level+1)*3)) res << "set_value_pos(pool_state);\n" res << (" " * ((level)*3)) res << "\n" return res end 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 1443 def to_c(res,level = 0) # Save the value pool state. res << (" " * (level*3)) << "PV;\n" # Generate the print for each argument. self.each_arg do |arg| if (arg.is_a?(StringE)) then res << (" " * (level*3)) res << "printer.print_string(\"" + Low2C.c_string(arg.content) + "\");\n" elsif (arg.is_a?(Expression)) then arg.to_c(res) res << (" " * (level*3)) res << "printer.print_string_value(pop());\n" else arg.to_c(res) res << "printer.print_string_name(pop());\n" end end # Restore the value pool state. res << (" " * (level*3)) << "RV;\n" return res end |
#to_high ⇒ Object
Creates a new high print statement.
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# File 'lib/HDLRuby/hruby_low2high.rb', line 309 def to_high return HDLRuby::High::Print.new( *self.each_arg.map {|arg| arg.to_high }) end |
#to_verilog(spc = 3) ⇒ Object
Converts the print to Verilog code.
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# File 'lib/HDLRuby/hruby_verilog.rb', line 175 def to_verilog(spc = 3) code = "#{" " * spc}$write(#{self.each_arg.map do |arg| arg.to_verilog end.join(",") });" return code end |
#to_vhdl(vars, level = 0) ⇒ Object
Generates the text of the equivalent HDLRuby::High code. +vars+ is the list of the variables and +level+ is the hierachical level of the object.
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# File 'lib/HDLRuby/hruby_low2vhd.rb', line 921 def to_vhdl(vars,level = 0) # Generate a report statement. return " " * (level*3) + "report " + self.each_arg.map do |arg| arg.to_vhdl end.join(" & ") + ";\n" end |