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gen_code.rb
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gen_code.rb
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require 'yaml'
require 'pathname'
require 'optparse'
STACK = "stack"
ENVIRONMENT = "env"
CODE = "code"
DUMP = "dump"
VMEXEC = "exec"
FUNCPREFIX = "get_"
RET = "ret"
TRANSPRIM = "transform_primitive"
DESTRUCTURING_RULES = {
"int" => lambda {|v| "IntegerConstant(#{v})"},
"bool" => lambda {|v| "BooleanConstant(#{v})"},
"context" => lambda {|v| "Context(#{v})"},
"float" => lambda {|v| "FloatConstant(#{v})"},
"horz" => lambda {|v| "Horz(#{v})"},
"vert" => lambda {|v| "Vert(#{v})"},
"length" => lambda {|v| "LengthConstant(#{v})"},
"math" => lambda {|v| "MathValue(#{v})"},
"path_value" => lambda {|v| "PathValue(#{v})"},
"prepath" => lambda {|v| "PrePathValue(#{v})"},
"regexp" => lambda {|v| "RegExpConstant(#{v})"},
}
def default_false b
if b == nil then false else b end
end
def gen_prims tag
YAML.load_stream(ARGF.read) do |inst|
if default_false(inst[tag]) && inst["name"] != nil then
len = inst["params"].length
args = []
for i in 1..len
args.push "_v#{i}"
end
puts " (\"#{inst["name"]}\","
puts " begin"
inst["type"].each_line do |line|
puts " #{line}"
end
puts " end,"
puts " lambda#{len} (fun #{args.join ' '} -> #{inst["inst"]}(#{args.join ', '}))"
puts " );"
end
end
end
def gen_pdf_mode_prims
gen_prims("is-pdf-mode-primitive")
end
def gen_text_mode_prims
gen_prims("is-text-mode-primitive")
end
def gen_interps
YAML.load_stream(ARGF.read) do |inst|
if (inst["is-pdf-mode-primitive"] || inst["is-text-mode-primitive"]) && !default_false(inst["no-interp"]) then
tmpn = 0
astargs = []
valueidents = []
otheridents = []
inst["params"].each do |param|
if param.is_a?(String) then
astargs.push "_ast#{tmpn}"
valueidents.push [param, "_ast#{tmpn}"]
tmpn = tmpn + 1
elsif param.is_a?(Hash) then
ident = param.keys[0]
type = param.values[0]
astargs.push "_ast#{tmpn}"
otheridents.push [ident, type, "_ast#{tmpn}"]
tmpn = tmpn + 1
end
end if inst["params"]
puts " | #{inst["inst"]}(#{astargs.join ', '}) ->"
valueidents.each do |pair|
ident, astident = pair
puts " let #{ident} = interpret env #{astident} in"
end
otheridents.each do |tri|
ident, type, astident = tri
puts " let #{ident} = #{FUNCPREFIX}#{type} (interpret env #{astident}) in"
end
puts " let reducef = reduce_beta_list in" if inst["needs-reducef"]
puts " begin"
if inst["separated"] then
inst["code-interp"].each_line do |line|
puts " #{line}"
end
else
inst["code"].each_line do |line|
puts " #{line}"
end
end
puts " end"
puts ""
end
end
end
def gen_vminstrs
YAML.load_stream(ARGF.read) do |inst|
tmpn = 0
destruct = []
funcapp = []
inst["params"].each do |param|
if param.is_a?(String) then
destruct.push param
elsif param.is_a?(Hash) then
pat = param.keys[0]
type = param.values[0]
rule = DESTRUCTURING_RULES[type]
if rule then
destruct.push (rule.call pat)
else
destruct.push "_tmp#{tmpn}"
funcapp.push [pat, type, "_tmp#{tmpn}"]
tmpn = tmpn + 1
end
end
end if inst["params"]
if inst["fields"] != nil then
fieldnames = inst["fields"].collect{|e| e.keys[0]}
puts " | Op#{inst["inst"]}(#{fieldnames.join ', '}) ->"
else
puts " | Op#{inst["inst"]} ->"
end
puts " begin"
puts " match #{STACK} with" if inst["params"]
puts " | #{destruct.reverse.join(" :: ")} :: #{STACK} ->" if destruct.length > 0
funcapp.each do |app|
dest, func, src = app
puts " let #{dest} = #{FUNCPREFIX}#{func} #{src} in"
end
if inst["needs-reducef"] then
puts " let reducef = exec_application #{ENVIRONMENT} in"
end
if (inst["is-pdf-mode-primitive"] || inst["is-text-mode-primitive"]) then
puts " let #{RET} ="
else
puts " begin"
end
inst["code"].each_line do |line|
puts " #{line}"
end
if (inst["is-pdf-mode-primitive"] || inst["is-text-mode-primitive"]) then
puts " in #{VMEXEC} (#{RET} :: #{STACK}) #{ENVIRONMENT} #{CODE} #{DUMP}"
else
puts " end"
end
puts ""
puts " | _ -> report_bug_vm \"invalid argument for Op#{inst["inst"]}\"" if inst["params"]
puts " end"
puts ""
end
end
def gen_insttype
puts "and instruction ="
YAML.load_stream(ARGF.read) do |inst|
if inst["fields"] != nil then
fieldtypes = inst["fields"].collect{|e| e.values[0]}
puts " | Op#{inst["inst"]} of #{fieldtypes.join ' * '}"
else
puts " | Op#{inst["inst"]}"
end
puts " [@printer (fun fmt _ -> Format.fprintf fmt \"Op#{inst["inst"]}(...)\")]" if inst["suppress-pp"]
puts " [@printer (#{inst["custom-pp"]})]" if inst["custom-pp"]
end
puts " [@@deriving show { with_path = false; }]"
end
def gen_attype
YAML.load_stream(ARGF.read) do |inst|
if (inst["is-pdf-mode-primitive"] || inst["is-text-mode-primitive"]) && !default_false(inst["no-ircode"]) then
if inst["params"] != nil then
puts " | #{inst["inst"]} of #{(["abstract_tree"] * inst["params"].length).join ' * '}"
else
puts " | #{inst["inst"]}"
end
end
end
end
def gen_ircases
YAML.load_stream(ARGF.read) do |inst|
if (inst["is-pdf-mode-primitive"] || inst["is-text-mode-primitive"]) && !default_false(inst["no-ircode"]) then
params = [*1..inst["params"].length].collect{|n| "p"+n.to_s}
puts " | #{inst["inst"]}(#{params.join ', '}) ->"
puts " #{TRANSPRIM} env [#{params.join '; '}] Op#{inst["inst"]}"
puts ""
end
end
end
opt = OptionParser.new
func = nil
opt.on('--gen-vm') {|v| func = method(:gen_vminstrs) }
opt.on('--gen-ir') {|v| func = method(:gen_ircases) }
opt.on('--gen-insttype') {|v| func = method(:gen_insttype) }
opt.on('--gen-attype') {|v| func = method(:gen_attype) }
opt.on('--gen-interps') {|v| func = method(:gen_interps) }
opt.on('--gen-pdf-mode-prims') {|v| func = method(:gen_pdf_mode_prims) }
opt.on('--gen-text-mode-prims') {|v| func = method(:gen_text_mode_prims) }
opt.parse!(ARGV)
func.call