Class: Opal::Nodes::HashNode
- Inherits:
-
Base
show all
- Defined in:
- opal/lib/opal/nodes/hash.rb
Constant Summary
Constants included
from Helpers
Opal::Nodes::Helpers::BASIC_IDENTIFIER_RULES, Opal::Nodes::Helpers::ES3_RESERVED_WORD_EXCLUSIVE, Opal::Nodes::Helpers::ES51_RESERVED_WORD, Opal::Nodes::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/hash.rb', line 26
def compile
keys, values = keys_and_values
if simple_keys? keys
compile_hash2 keys, values
else
compile_hash
end
end
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#compile_hash ⇒ Object
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# File 'opal/lib/opal/nodes/hash.rb', line 36
def compile_hash
helper :hash
children.each_with_index do |child, idx|
push ', ' unless idx == 0
push expr(child)
end
wrap '$hash(', ')'
end
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#compile_hash2(keys, values) ⇒ Object
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# File 'opal/lib/opal/nodes/hash.rb', line 47
def compile_hash2(keys, values)
hash_obj, hash_keys = {}, []
helper :hash2
keys.size.times do |idx|
key = keys[idx][1].to_s.inspect
hash_keys << key unless hash_obj.include? key
hash_obj[key] = expr(values[idx])
end
hash_keys.each_with_index do |key, idx|
push ', ' unless idx == 0
push "#{key}: "
push hash_obj[key]
end
wrap "$hash2([#{hash_keys.join ', '}], {", "})"
end
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#keys_and_values ⇒ Object
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# File 'opal/lib/opal/nodes/hash.rb', line 8
def keys_and_values
keys, values = [], []
children.each_with_index do |obj, idx|
if idx.even?
keys << obj
else
values << obj
end
end
[keys, values]
end
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#simple_keys?(keys) ⇒ Boolean
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# File 'opal/lib/opal/nodes/hash.rb', line 22
def simple_keys?(keys)
keys.all? { |key| [:sym, :str].include? key.type }
end
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