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=begin
Method call with array argument vs. array item access
IDENTIFIER whitespaceopt '[' arg ']':
1. IDENTIFIER is local variable => array item access
2. whitespace => function call with parameter '[' arg ']'
3. array item access
=end
def function(*a) print "F:"; [1,2,3] end
def both(*a) print "B:"; [1,2,3] end
var = %w[a b c]
both = %w[a b c]
puts "--"
puts both[1] # array-item-access(both, 1)
puts "--"
puts both [1] # array-item-access(var, 1)
puts "--"
puts var[1] # array-item-access(var, 1)
puts "--"
puts var [1] # array-item-access(var, 1)
puts "--"
puts function[1] # array-item-access(function-call(function), 1)
puts "--"
puts function [1] # function-call(function, [1])
puts "--"
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