Class: Opal::Nodes::ResBodyNode
- Inherits:
-
Base
show all
- Defined in:
- opal/lib/opal/nodes/rescue.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/rescue.rb', line 98
def compile
push "if ("
if rescue_exprs.empty?
push "true"
else
push "Opal.rescue($err, ["
rescue_exprs.each_with_index do |rexpr, idx|
push ', ' unless idx == 0
push expr(rexpr)
end
push "])"
end
push ") {"
if variable = rescue_variable
variable[2] = s(:js_tmp, '$err')
push expr(variable), ';'
end
line process(rescue_body, @level)
line "}"
end
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#rescue_body ⇒ Object
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# File 'opal/lib/opal/nodes/rescue.rb', line 136
def rescue_body
body_code = (body || s(:nil))
body_code = compiler.returns(body_code) if !stmt?
body_code
end
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#rescue_exprs ⇒ Object
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# File 'opal/lib/opal/nodes/rescue.rb', line 130
def rescue_exprs
exprs = args.dup
exprs.pop if rescue_variable?(exprs.last)
exprs.children
end
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#rescue_variable ⇒ Object
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# File 'opal/lib/opal/nodes/rescue.rb', line 126
def rescue_variable
rescue_variable?(args.last) ? args.last.dup : nil
end
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#rescue_variable?(variable) ⇒ Boolean
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# File 'opal/lib/opal/nodes/rescue.rb', line 122
def rescue_variable?(variable)
Sexp === variable and [:lasgn, :iasgn].include?(variable.type)
end
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