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41 líneas
1.3 KiB
41 líneas
1.3 KiB
require "./types"
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module Crisp
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class Printer
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def initialize(@print_readably = true)
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end
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def print(value)
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case value
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when Nil then "nil"
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when Bool then value.to_s
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when Int32 then value.to_s
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when Crisp::List then "(#{value.map{|v| pr_str(v, @print_readably) as String}.join(" ")})"
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when Crisp::Vector then "[#{value.map{|v| pr_str(v, @print_readably) as String}.join(" ")}]"
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when Crisp::Symbol then value.str.to_s
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when Crisp::Func then "<function>"
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when Crisp::Closure then "<closure>"
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when Crisp::HashMap
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# step1_read_print.cr requires specifying type
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"{#{value.map{|k, v| "#{pr_str(k, @print_readably)} #{pr_str(v, @print_readably)}" as String}.join(" ")}}"
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when String
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case
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when value.empty?()
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@print_readably ? value.inspect : value
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when value[0] == '\u029e'
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":#{value[1..-1]}"
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else
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@print_readably ? value.inspect : value
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end
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when Crisp::Atom
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"(atom #{pr_str(value.val, @print_readably)})"
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else
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raise "invalid CrispType: #{value.to_s}"
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end
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end
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def print(t : Crisp::Type)
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print(t.unwrap, @print_readably) + (t.macro? ? " (macro)" : "")
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end
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end
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end
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