Class: Opal::Nodes::WhileNode
- Inherits:
-
Base
show all
- Defined in:
- opal/lib/opal/nodes/while.rb
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
#compiler, #type
Instance Method Summary
collapse
Methods inherited from Base
#add_gvar, #add_ivar, #add_local, #add_temp, children, #children, #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
Instance Method Details
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# File 'opal/lib/opal/nodes/while.rb', line 10
def compile
with_temp do |redo_var|
test_code = js_truthy(test)
compiler.in_while do
while_loop[:closure] = true if wrap_in_closure?
while_loop[:redo_var] = redo_var
body_code = stmt(body)
if uses_redo?
push "#{redo_var} = false; #{while_open}#{redo_var} || "
push test_code
push while_close
else
push while_open, test_code, while_close
end
push "#{redo_var} = false;" if uses_redo?
line body_code, "}"
end
end
wrap '(function() {', '; return nil; })()' if wrap_in_closure?
end
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#uses_redo? ⇒ Boolean
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# File 'opal/lib/opal/nodes/while.rb', line 44
def uses_redo?
while_loop[:use_redo]
end
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#while_close ⇒ Object
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# File 'opal/lib/opal/nodes/while.rb', line 40
def while_close
") {"
end
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#while_open ⇒ Object
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# File 'opal/lib/opal/nodes/while.rb', line 36
def while_open
"while ("
end
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#wrap_in_closure? ⇒ Boolean
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# File 'opal/lib/opal/nodes/while.rb', line 48
def wrap_in_closure?
expr? or recv?
end
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