Class: Opal::Nodes::BaseYieldNode
- Defined in:
- opal/lib/opal/nodes/yield.rb
Direct Known Subclasses
Constant Summary
Constants included from Helpers
Helpers::BASIC_IDENTIFIER_RULES, Helpers::ES3_RESERVED_WORD_EXCLUSIVE, Helpers::ES51_RESERVED_WORD, Helpers::IMMUTABLE_PROPS
Instance Attribute Summary
Attributes inherited from Base
Instance Method Summary collapse
- #compile_call(children, level) ⇒ Object
- #find_yielding_scope ⇒ Object
- #uses_splat?(children) ⇒ Boolean
- #yields_single_arg?(children) ⇒ Boolean
Methods inherited from Base
#add_gvar, #add_ivar, #add_local, #add_temp, children, #children, #compile, #compile_to_fragments, #error, #expr, #expr?, #expr_or_nil, #fragment, handle, handlers, #helper, #in_while?, #initialize, #process, #push, #recv, #recv?, #s, #scope, #stmt, #stmt?, #unshift, #while_loop, #with_temp, #wrap
Methods included from Helpers
#current_indent, #empty_line, #indent, #js_falsy, #js_truthy, #js_truthy_optimize, #line, #lvar_to_js, #mid_to_jsid, #property, #valid_name?, #variable
Constructor Details
This class inherits a constructor from Opal::Nodes::Base
Instance Method Details
#compile_call(children, level) ⇒ Object
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# File 'opal/lib/opal/nodes/yield.rb', line 6 def compile_call(children, level) yielding_scope = find_yielding_scope yielding_scope.uses_block! block_name = yielding_scope.block_name || '$yield' if yields_single_arg?(children) push expr(children.first) wrap "Opal.yield1(#{block_name}, ", ')' else push expr(s(:arglist, *children)) if uses_splat?(children) wrap "Opal.yieldX(#{block_name}, ", ')' else wrap "Opal.yieldX(#{block_name}, [", '])' end end end |
#find_yielding_scope ⇒ Object
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# File 'opal/lib/opal/nodes/yield.rb', line 26 def find_yielding_scope working = scope while working if working.block_name or working.def? break end working = working.parent end working end |
#uses_splat?(children) ⇒ Boolean
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# File 'opal/lib/opal/nodes/yield.rb', line 42 def uses_splat?(children) children.any? { |child| child.type == :splat } end |
#yields_single_arg?(children) ⇒ Boolean
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# File 'opal/lib/opal/nodes/yield.rb', line 38 def yields_single_arg?(children) !uses_splat?(children) and children.size == 1 end |