54 lines
1.7 KiB
Ruby
54 lines
1.7 KiB
Ruby
require_relative '../helper'
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require 'parslet/convenience'
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#test the generation of code fragments.
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# ie parse assumes @string_input
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# compile
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# assemble/write assume a @should array with the bytes in it
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# since the bytes are store, the test can be run on any machine.
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# but to get the bytes, one needs to link and run the object file to confirm correctness (to be automated)
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module Fragments
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# need a code generator, for arm
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def setup
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@program = Vm::Program.new "Arm"
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end
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def parse
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parser = Parser::Crystal.new
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syntax = parser.parse_with_debug(@string_input)
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parts = Parser::Transform.new.apply(syntax)
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# file is a list of expressions, all but the last must be a function
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# and the last is wrapped as a main
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parts.each_with_index do |part,index|
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if index == (parts.length - 1)
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expr = part.compile( @program.context , @program.main )
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else
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expr = part.compile( @program.context , nil )
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raise "should be function definition for now" unless expr.is_a? Vm::Function
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end
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end
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end
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# helper to write the file
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def write name
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writer = Elf::ObjectWriter.new(@program , Elf::Constants::TARGET_ARM)
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assembly = writer.text
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# use this for getting the bytes to compare to :
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#puts assembly
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writer.save("#{name}.o")
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assembly.text.bytes.each_with_index do |byte , index|
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is = @should[index]
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assert_equal Fixnum , is.class , "@#{index.to_s(16)} = #{is}"
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assert_equal byte , is , "@#{index.to_s(16)} #{byte.to_s(16)} != #{is.to_s(16)}"
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end
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if( RbConfig::CONFIG["build_cpu"] == "arm")
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system "ld -N #{name}.o"
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result = %x[./a.out]
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assert_equal @output , result
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end
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end
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end
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