Class: Rbind::DefaultParser
Instance Attribute Summary
Attributes included from Logger
#log
Attributes inherited from RNamespace
#consts, #operation_alias, #operations, #root, #type_alias, #used_namespaces
Attributes inherited from RDataType
#cdelete_method, #check_type, #invalid_value, #typedef
Attributes inherited from RBase
#alias, #auto_alias, #cname, #csignature, #doc, #extern_package_name, #ignore, #name, #namespace, #owner, #signature, #version
Instance Method Summary
collapse
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#add_class_name(name) ⇒ Object
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#add_data_type_name(name) ⇒ Object
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#add_namespace_name(name) ⇒ Object
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#add_type(klass) ⇒ Object
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#attribute(line_number, string, owner = self) ⇒ Object
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#find_type(owner, type_name, braise = true) ⇒ Object
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#initialize(root = nil) ⇒ DefaultParser
constructor
A new instance of DefaultParser.
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#normalize_flags(line_number, flags, *valid_flags) ⇒ Object
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#on_type_not_found(&block) ⇒ Object
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#parameter(line_number, string, owner = self) ⇒ Object
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#parse(string, extern_package_name = nil) ⇒ Object
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#parse_class(line_number, string) ⇒ Object
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#parse_const(line_number, string) ⇒ Object
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#parse_enum(line_number, string) ⇒ Object
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#parse_operation(line_number, string) ⇒ Object
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#parse_struct(line_number, string) ⇒ Object
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#split(string) ⇒ Object
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#unmask_template(type_name) ⇒ Object
reverse template masking done by the opencv parser.
Methods included from Logger
extend_object
Methods inherited from RNamespace
#add_const, #add_const_val, #add_default_types, #add_namespace, #add_operation, #add_simple_type, #add_simple_types, #add_type_alias, #const, #constructor?, #container?, default_operators, #delete_type, #each_const, #each_container, #each_operation, #each_type, #empty?, #enum_hash, #extern?, #method_missing, #operation, #operation?, #pretty_print, #pretty_print_name, #root?, #type, #type?, #types, #use_namespace, #used_extern_types
Methods included from Hooks
included
Methods inherited from RDataType
#==, #basic_type?, #check_type?, #cname, #const?, #container?, #ownership?, #ptr?, #raw?, #ref?, #remove_const, #remove_ownership, #remove_ptr, #remove_ref, #template?, #to_const, #to_ownership, #to_ptr, #to_raw, #to_ref, #to_single_ptr, #typedef?
Methods inherited from RBase
basename, #binding, #delete!, #doc?, #extern?, #full_name, #generate_signatures, #ignore?, #map_to_namespace, namespace, #namespace?, normalize, #overwrite_c, #overwrite_ruby, #pretty_print, #rename, #specialize_ruby, split_name, to_cname, #to_s
Constructor Details
Returns a new instance of DefaultParser.
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# File 'lib/rbind/default_parser.rb', line 6
def initialize(root = nil)
super(nil,root)
add_default_types if !root
end
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Dynamic Method Handling
This class handles dynamic methods through the method_missing method
in the class Rbind::RNamespace
Instance Method Details
#add_class_name(name) ⇒ Object
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# File 'lib/rbind/default_parser.rb', line 37
def add_class_name(name)
klass = RClass.new(name)
add_type klass
klass
end
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#add_data_type_name(name) ⇒ Object
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# File 'lib/rbind/default_parser.rb', line 25
def add_data_type_name(name)
t = RDataType.new(name)
add_type t
t
end
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#add_namespace_name(name) ⇒ Object
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# File 'lib/rbind/default_parser.rb', line 31
def add_namespace_name(name)
ns = RNamespace.new(name)
add_type ns
ns
end
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#add_type(klass) ⇒ Object
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# File 'lib/rbind/default_parser.rb', line 209
def add_type(klass)
if klass2 = type(klass.full_name,false)
if !klass2.is_a?(RClass) || (!klass2.parent_classes.empty? && klass2.parent_classes != klass.parent_classes)
raise "Cannot add class #{klass.full_name}. A different type #{klass2} is already registered"
else
klass.parent_classes.each do |p|
klass2.add_parent p
end
klass2.extern_package_name = klass.extern_package_name
klass2
end
else
klass.name = klass.name.gsub(">>","> >")
super(klass)
klass
end
end
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#attribute(line_number, string, owner = self) ⇒ Object
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# File 'lib/rbind/default_parser.rb', line 113
def attribute(line_number,string,owner=self)
flags = string.split(" /")
array = flags.shift.split(" ")
type_name = array[0]
name = array[1]
type = find_type(owner,type_name,false)
type ||= begin
t = owner.add_type(RClass.new(RBase.normalize(type_name)))
t.extern_package_name = @extern_package_name
t
end
flags = normalize_flags(line_number,flags,:RW,:R)
a = RAttribute.new(name,type)
a.writeable!(true) if flags.include? :RW
a
rescue RuntimeError => e
raise "input line #{line_number}: #{e}"
end
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#find_type(owner, type_name, braise = true) ⇒ Object
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# File 'lib/rbind/default_parser.rb', line 65
def find_type(owner,type_name,braise=true)
type_name = unmask_template(type_name)
t = owner.type(type_name,false)
return t if t
normalized = type_name.split("_")
name = normalized.shift
while !normalized.empty?
name += "::#{normalized.shift}"
t = if normalized.empty?
owner.type(name,false)
else
owner.type("#{name}_#{normalized.join("_")}",false)
end
return t if t
end
t = @on_type_not_found.call(owner,type_name) if @on_type_not_found
return t if t
owner.type(type_name,true) if braise
end
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#normalize_flags(line_number, flags, *valid_flags) ⇒ Object
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# File 'lib/rbind/default_parser.rb', line 11
def normalize_flags(line_number,flags,*valid_flags)
flags.map do |flag|
next if flag.empty?
if flag =~ /(\w*)(.*)/
DefaultParser.log.debug "input line #{line_number}: ignoring flag #{$2}" unless $2.empty?
flag = $1.to_sym
DefaultParser.log.debug "input line #{line_number}: ignoring flag #{$1}" unless valid_flags.include?(flag)
flag
else
raise "cannot parse flag #{flag.inspect}"
end
end.compact
end
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#on_type_not_found(&block) ⇒ Object
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# File 'lib/rbind/default_parser.rb', line 43
def on_type_not_found(&block)
@on_type_not_found = block
end
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#parameter(line_number, string, owner = self) ⇒ Object
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# File 'lib/rbind/default_parser.rb', line 88
def parameter(line_number,string,owner = self)
flags = string.split(" /")
array = flags.shift.split(" ")
type_name = array.shift
para_name = array.shift
default = unmask_template(array.join(" ").gsub("/C",""))
default.gsub!("/Ref","")
type = find_type(owner,type_name)
flags = normalize_flags(line_number,flags,:IO,:O)
type = if flags.include?(:O) || flags.include?(:IO)
if type.ptr?
type
else
type.to_ref end
elsif type.basic_type?
type
else
type.to_const
end
RParameter.new(para_name,type,default)
rescue RuntimeError => e
raise "input line #{line_number}: #{e}"
end
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#parse(string, extern_package_name = nil) ⇒ Object
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# File 'lib/rbind/default_parser.rb', line 366
def parse(string,extern_package_name=nil)
@extern_package_name = extern_package_name
a = split(string)
a.pop if (a.last =~/namespaces:/) == 0
a.pop if a.last.to_i != 0
line_number = 1
a.each do |block|
begin
first = block.split(" ",2)[0]
obj,lines = if first == "const"
parse_const(line_number,block)
elsif first == "class"
parse_class(line_number,block)
elsif first == "struct"
parse_struct(line_number,block)
elsif first == "enum"
parse_enum(line_number,block)
else
parse_operation(line_number,block)
end
line_number+=lines
rescue RuntimeError => e
puts "Parsing Error: #{e}"
puts "Line #{line_number}:"
puts "--------------------------------------------------"
puts block
puts "--------------------------------------------------"
Kernel.raise
break
end
end
a.size
end
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#parse_class(line_number, string) ⇒ Object
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# File 'lib/rbind/default_parser.rb', line 133
def parse_class(line_number,string)
lines = string.split("\n")
a = lines.shift.rstrip
unless a =~ /class ([,<>a-zA-Z\.\d_:]*) ?:?([<>a-zA-Z\.\:, \d_]*)(.*)/
raise "cannot parse class #{a}"
end
name = $1
parent_classes = $2
flags = $3
parent_classes = if parent_classes
classes = parent_classes.gsub(" ","").split(",")
classes.each_with_index do |val,i|
next unless val
if val.include?("<")
val = [val]
(i+1).upto(classes.size-1) do |i2|
val2 = classes[i2]
val << val2
classes[i2] = nil
if val2.include?(">")
break
end
end
classes[i] = val.join(",")
elsif val =="cv::class" puts "ignore: parent class #{val} which is invalid for #{$1}"
classes[i] = nil
end
end
classes.compact!
classes.map do |name|
t = type(RBase.normalize(name),false)
t ||= begin
names = name
while((names=RBase.normalize(names).split("::")).size > 1)
names.shift
names = names.join("::")
t = type(names,false)
break t if t
end
end
t ||= begin
name = name.gsub(/^.*::::/,"")
t = add_type(RClass.new(RBase.normalize(name)))
t.extern_package_name = @extern_package_name
t
end
end
end
flags = if flags
normalize_flags(line_number,flags.gsub(" ","").split("/").compact,:Simple,:Map)
end
t = RClass.new(name,*parent_classes)
t.extern_package_name = @extern_package_name
t = add_type(t)
line_counter = 1
lines.each do |line|
a = attribute(line_counter+line_number,line,t)
t.add_attribute(a)
line_counter += 1
end
[t,line_counter]
rescue RuntimeError => e
raise "input line #{line_number}: #{e}"
end
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#parse_const(line_number, string) ⇒ Object
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# File 'lib/rbind/default_parser.rb', line 247
def parse_const(line_number,string)
raise "multi line const are not supported: #{string}" if string.split("\n").size > 1
unless string =~ /const ([a-zA-Z\.\d_:]*) ?([^\/]*)(.*)/
raise "cannot parse const #{string}"
end
name = $1
value = $2.chomp("\n").chomp(" ")
flags = $3
flags = if flags
normalize_flags(line_number,flags.gsub(" ","").split("/").compact)
end
c = RParameter.new(name,find_type(self,"const int"),value)
c.extern_package_name = @extern_package_name
add_const(c)
[c,1]
end
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#parse_enum(line_number, string) ⇒ Object
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# File 'lib/rbind/default_parser.rb', line 265
def parse_enum(line_number,string)
lines = string.split("\n")
a = lines.shift.rstrip.gsub("enum struct ","enum ")
a = a.gsub("enum class ","enum ")
unless a =~ /enum ([<>a-zA-Z\.\d_:]*)/
raise "cannot parse enum#{a}"
end
name = $1.gsub("<unnamed>","Unknown")
renum = REnum.new(name)
renum = begin
add_type(renum)
rescue => e
t = type(name)
if !t.is_a? REnum || (renum.name != "Unknown" && !renum.values.empty?)
raise "cannot overwrite #{t.class}: #{t} with #{renum.class}: #{renum}. Use forward declaration?"
end
t
end
line_counter = 1
lines.each do |line|
line_counter += 1
line =~ /const ([<>a-zA-Z\.\d_:]*) (.*) \[\]/
val = $2.strip
name = $1.strip
name = name.gsub("#{renum.full_name.gsub("::",".")}.","") name = name.gsub("#{renum.namespace.gsub("::",".")}.","")
Set.new(val.split(/[ ><\+\-\*\/\&\|\)\(\~]/)).each do |v|
c = const(v,false)
if c
val.gsub!(v,c.full_name)
elsif renum.values.include? v
val.gsub!(v,renum.values[v])
end
end
renum.add_value(name,val)
end
[renum,line_counter]
rescue RuntimeError => e
raise "input line #{line_number}: #{e}"
end
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#parse_operation(line_number, string) ⇒ Object
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# File 'lib/rbind/default_parser.rb', line 307
def parse_operation(line_number,string)
string = string.gsub(";"," ") a = string.split("\n")
line = a.shift
flags = line.split(" /")
line = flags.shift
elements = line.split(" ")
name = elements.shift
return_type_name = elements.shift
if return_type_name == "()"
name += return_type_name
return_type_name = elements.shift
end
alias_name = elements.shift
alias_name = if alias_name
raise "#{line_number}: cannot parse #{string}" unless alias_name =~/^=.*/
alias_name.gsub("=","")
end
ns = RBase.namespace(name)
owner = type(ns,false)
owner ||= add_namespace_name(ns)
if return_type_name == "explicit"
flags << return_type_name
return_type_name = nil
end
flags = normalize_flags(line_number,flags,:S,:O)
return_type = if return_type_name && !return_type_name.empty?
t = find_type(owner,return_type_name)
if flags.include?(:O)
if t.ptr?
t
else
t.to_ref end
elsif t.basic_type? && t.name != "c_string"
t
else
t.to_const
end
end
line_counter = 1
args = a.map do |line|
p = parameter(line_number+line_counter,line,owner)
line_counter += 1
p
end
op = ::Rbind::ROperation.new(name,return_type,*args)
op.alias = alias_name if alias_name && !alias_name.empty?
op = if flags.include?(:S)
op.to_static
else
op
end
type(op.namespace,true).add_operation(op)
op.extern_package_name = @extern_package_name
[op,line_counter]
end
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#parse_struct(line_number, string) ⇒ Object
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# File 'lib/rbind/default_parser.rb', line 227
def parse_struct(line_number,string)
a = string.split("\n")
first_line = a.shift
flags = first_line.split(" /")
name = flags.shift.split(" ")[1]
flags = normalize_flags(line_number,flags)
klass = RClass.new(name)
klass = add_type(klass)
line_counter = 1
a.each do |line|
a = attribute(line_counter+line_number,line,klass)
klass.add_attribute(a)
line_counter += 1
end
klass.extern_package_name = @extern_package_name
[klass,line_counter]
rescue RuntimeError => e
raise "input line #{line_number}: #{e}"
end
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#split(string) ⇒ Object
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# File 'lib/rbind/default_parser.rb', line 403
def split(string)
array = []
if string
string.each_line do |line|
if line == "\n" || line.empty?
next
elsif line[0] != " "
array << line
elsif !array.empty?
array[array.size-1] = array.last + line
end
end
end
array
end
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#unmask_template(type_name) ⇒ Object
reverse template masking done by the opencv parser
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# File 'lib/rbind/default_parser.rb', line 48
def unmask_template(type_name)
if(type_name =~/<.*>/)
return type_name
end
type_name = type_name.gsub("cv::vector","vector") if(type_name =~/^vector/ || type_name =~/^Ptr/)
if(type_name =~ /^([a-zA-Z\d]*)_([_a-zA-Z\d]*) ?(\(?.*)\)? */)
"#{$1}<#{unmask_template($2)}>#{$3}"
else
type_name
end
else
type_name
end
end
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