Class: CodeTools::AST::ConcatArgs
- Defined in:
- lib/rubinius/code/ast/values.rb
Instance Attribute Summary collapse
-
#array ⇒ Object
Returns the value of attribute array.
-
#rest ⇒ Object
Returns the value of attribute rest.
Attributes inherited from Node
Instance Method Summary collapse
- #bytecode(g) ⇒ Object
-
#convert_to_a(g) ⇒ Object
TODO: de-dup.
-
#initialize(line, array, rest) ⇒ ConcatArgs
constructor
A new instance of ConcatArgs.
- #kind_of_array(g, label) ⇒ Object
-
#peel_lhs ⇒ Object
Dive down and try to find an array of regular values that could construct the left side of a concatination.
- #splat? ⇒ Boolean
- #to_sexp ⇒ Object
Methods inherited from Node
#ascii_graph, #attributes, #children, #defined, match_arguments?, match_send?, #new_block_generator, #new_generator, #node_name, #or_bytecode, #pos, #set_child, #transform, transform, transform_comment, transform_kind, transform_kind=, transform_name, #value_defined, #visit, #walk
Constructor Details
#initialize(line, array, rest) ⇒ ConcatArgs
Returns a new instance of ConcatArgs.
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# File 'lib/rubinius/code/ast/values.rb', line 104 def initialize(line, array, rest) @line = line @array = array @rest = rest end |
Instance Attribute Details
#array ⇒ Object
Returns the value of attribute array.
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# File 'lib/rubinius/code/ast/values.rb', line 102 def array @array end |
#rest ⇒ Object
Returns the value of attribute rest.
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# File 'lib/rubinius/code/ast/values.rb', line 102 def rest @rest end |
Instance Method Details
#bytecode(g) ⇒ Object
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# File 'lib/rubinius/code/ast/values.rb', line 110 def bytecode(g) @array.bytecode(g) if @array @rest.bytecode(g) convert_to_a(g) g.send :+, 1, true if @array end |
#convert_to_a(g) ⇒ Object
TODO: de-dup
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# File 'lib/rubinius/code/ast/values.rb', line 120 def convert_to_a(g) done = g.new_label coerce = g.new_label make_array = g.new_label kind_of_array(g, done) g.dup g.push_literal :to_a g.push_true g.send :respond_to?, 2, true g.goto_if_true coerce make_array.set! g.make_array 1 g.goto done coerce.set! g.dup g.send :to_a, 0, true discard = g.new_label check_array = g.new_label g.dup g.goto_if_not_nil check_array g.pop g.goto make_array check_array.set! kind_of_array(g, discard) g.push_type g.move_down 2 g.push_literal :to_a g.push_cpath_top g.find_const :Array g.send :coerce_to_type_error, 4, true g.goto done discard.set! g.swap g.pop done.set! end |
#kind_of_array(g, label) ⇒ Object
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# File 'lib/rubinius/code/ast/values.rb', line 168 def kind_of_array(g, label) g.dup g.push_cpath_top g.find_const :Array g.swap g.kind_of g.goto_if_true label end |
#peel_lhs ⇒ Object
Dive down and try to find an array of regular values that could construct the left side of a concatination. This is used to minimize the splat doing a send.
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# File 'lib/rubinius/code/ast/values.rb', line 180 def peel_lhs case @array when ConcatArgs @array.peel_lhs when ArrayLiteral ary = @array.body @array = nil ary else nil end end |
#splat? ⇒ Boolean
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# File 'lib/rubinius/code/ast/values.rb', line 197 def splat? true end |
#to_sexp ⇒ Object
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# File 'lib/rubinius/code/ast/values.rb', line 193 def to_sexp [:argscat, @array.to_sexp, @rest.to_sexp] end |