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Versions: 8
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Contents
module Alf
module Support
# Converts `value` to a ruby literal
#
# This method is provided for code generation mechanisms used by Alf in
# various places (such as .rash files). The to_ruby_literal contract is
# such that the following invariant holds:
#
# eval(to_ruby_literal(value)) == value
#
# This contract is ensured by Myrrha::ToRubyLiteral for various ruby values.
# Myrrha delegates the job to `value.to_ruby_literal` provided this method
# exists. In such case, the implementation must be such that the invariant
# above is met.
#
# In every case, an invocation to this method only makes sense provided that
# `value` denotes a pure value, with the obvious semantics (from TTM).
#
# @param [Object] value any ruby object that denotes a pure value.
# @return [String] a ruby literal for `value`
def to_ruby_literal(value)
ToRubyLiteral.apply(value)
end
# Myrrha rules for converting to ruby literals
ToRubyLiteral = Myrrha::ToRubyLiteral.dup.append do |g|
g.coercion(Time) {|s,_| "Time.parse('#{s.iso8601}')" }
g.coercion(DateTime){|s,_| "DateTime.parse('#{s.iso8601}')" }
end
end # module Support
end # module Alf
Version data entries
8 entries across 8 versions & 1 rubygems