mirror of
https://github.com/ruby/ruby.git
synced 2022-11-09 12:17:21 -05:00
1242 lines
35 KiB
Ruby
1242 lines
35 KiB
Ruby
# frozen_string_literal: true
|
|
require 'tsort'
|
|
|
|
##
|
|
# RDoc::Parser::C attempts to parse C extension files. It looks for
|
|
# the standard patterns that you find in extensions: +rb_define_class+,
|
|
# +rb_define_method+ and so on. It tries to find the corresponding
|
|
# C source for the methods and extract comments, but if we fail
|
|
# we don't worry too much.
|
|
#
|
|
# The comments associated with a Ruby method are extracted from the C
|
|
# comment block associated with the routine that _implements_ that
|
|
# method, that is to say the method whose name is given in the
|
|
# +rb_define_method+ call. For example, you might write:
|
|
#
|
|
# /*
|
|
# * Returns a new array that is a one-dimensional flattening of this
|
|
# * array (recursively). That is, for every element that is an array,
|
|
# * extract its elements into the new array.
|
|
# *
|
|
# * s = [ 1, 2, 3 ] #=> [1, 2, 3]
|
|
# * t = [ 4, 5, 6, [7, 8] ] #=> [4, 5, 6, [7, 8]]
|
|
# * a = [ s, t, 9, 10 ] #=> [[1, 2, 3], [4, 5, 6, [7, 8]], 9, 10]
|
|
# * a.flatten #=> [1, 2, 3, 4, 5, 6, 7, 8, 9, 10]
|
|
# */
|
|
# static VALUE
|
|
# rb_ary_flatten(VALUE ary)
|
|
# {
|
|
# ary = rb_obj_dup(ary);
|
|
# rb_ary_flatten_bang(ary);
|
|
# return ary;
|
|
# }
|
|
#
|
|
# ...
|
|
#
|
|
# void
|
|
# Init_Array(void)
|
|
# {
|
|
# ...
|
|
# rb_define_method(rb_cArray, "flatten", rb_ary_flatten, 0);
|
|
#
|
|
# Here RDoc will determine from the +rb_define_method+ line that there's a
|
|
# method called "flatten" in class Array, and will look for the implementation
|
|
# in the method +rb_ary_flatten+. It will then use the comment from that
|
|
# method in the HTML output. This method must be in the same source file
|
|
# as the +rb_define_method+.
|
|
#
|
|
# The comment blocks may include special directives:
|
|
#
|
|
# [Document-class: +name+]
|
|
# Documentation for the named class.
|
|
#
|
|
# [Document-module: +name+]
|
|
# Documentation for the named module.
|
|
#
|
|
# [Document-const: +name+]
|
|
# Documentation for the named +rb_define_const+.
|
|
#
|
|
# Constant values can be supplied on the first line of the comment like so:
|
|
#
|
|
# /* 300: The highest possible score in bowling */
|
|
# rb_define_const(cFoo, "PERFECT", INT2FIX(300));
|
|
#
|
|
# The value can contain internal colons so long as they are escaped with a \
|
|
#
|
|
# [Document-global: +name+]
|
|
# Documentation for the named +rb_define_global_const+
|
|
#
|
|
# [Document-variable: +name+]
|
|
# Documentation for the named +rb_define_variable+
|
|
#
|
|
# [Document-method\: +method_name+]
|
|
# Documentation for the named method. Use this when the method name is
|
|
# unambiguous.
|
|
#
|
|
# [Document-method\: <tt>ClassName::method_name</tt>]
|
|
# Documentation for a singleton method in the given class. Use this when
|
|
# the method name alone is ambiguous.
|
|
#
|
|
# [Document-method\: <tt>ClassName#method_name</tt>]
|
|
# Documentation for a instance method in the given class. Use this when the
|
|
# method name alone is ambiguous.
|
|
#
|
|
# [Document-attr: +name+]
|
|
# Documentation for the named attribute.
|
|
#
|
|
# [call-seq: <i>text up to an empty line</i>]
|
|
# Because C source doesn't give descriptive names to Ruby-level parameters,
|
|
# you need to document the calling sequence explicitly
|
|
#
|
|
# In addition, RDoc assumes by default that the C method implementing a
|
|
# Ruby function is in the same source file as the rb_define_method call.
|
|
# If this isn't the case, add the comment:
|
|
#
|
|
# rb_define_method(....); // in filename
|
|
#
|
|
# As an example, we might have an extension that defines multiple classes
|
|
# in its Init_xxx method. We could document them using
|
|
#
|
|
# /*
|
|
# * Document-class: MyClass
|
|
# *
|
|
# * Encapsulate the writing and reading of the configuration
|
|
# * file. ...
|
|
# */
|
|
#
|
|
# /*
|
|
# * Document-method: read_value
|
|
# *
|
|
# * call-seq:
|
|
# * cfg.read_value(key) -> value
|
|
# * cfg.read_value(key} { |key| } -> value
|
|
# *
|
|
# * Return the value corresponding to +key+ from the configuration.
|
|
# * In the second form, if the key isn't found, invoke the
|
|
# * block and return its value.
|
|
# */
|
|
|
|
class RDoc::Parser::C < RDoc::Parser
|
|
|
|
parse_files_matching(/\.(?:([CcHh])\1?|c([+xp])\2|y)\z/)
|
|
|
|
include RDoc::Text
|
|
|
|
# :stopdoc:
|
|
BOOL_ARG_PATTERN = /\s*+\b([01]|Q?(?:true|false)|TRUE|FALSE)\b\s*/
|
|
TRUE_VALUES = ['1', 'TRUE', 'true', 'Qtrue'].freeze
|
|
# :startdoc:
|
|
|
|
##
|
|
# Maps C variable names to names of Ruby classes or modules
|
|
|
|
attr_reader :classes
|
|
|
|
##
|
|
# C file the parser is parsing
|
|
|
|
attr_accessor :content
|
|
|
|
##
|
|
# Dependencies from a missing enclosing class to the classes in
|
|
# missing_dependencies that depend upon it.
|
|
|
|
attr_reader :enclosure_dependencies
|
|
|
|
##
|
|
# Maps C variable names to names of Ruby classes (and singleton classes)
|
|
|
|
attr_reader :known_classes
|
|
|
|
##
|
|
# Classes found while parsing the C file that were not yet registered due to
|
|
# a missing enclosing class. These are processed by do_missing
|
|
|
|
attr_reader :missing_dependencies
|
|
|
|
##
|
|
# Maps C variable names to names of Ruby singleton classes
|
|
|
|
attr_reader :singleton_classes
|
|
|
|
##
|
|
# The TopLevel items in the parsed file belong to
|
|
|
|
attr_reader :top_level
|
|
|
|
##
|
|
# Prepares for parsing a C file. See RDoc::Parser#initialize for details on
|
|
# the arguments.
|
|
|
|
def initialize top_level, file_name, content, options, stats
|
|
super
|
|
|
|
@known_classes = RDoc::KNOWN_CLASSES.dup
|
|
@content = handle_tab_width handle_ifdefs_in @content
|
|
@file_dir = File.dirname @file_name
|
|
|
|
@classes = load_variable_map :c_class_variables
|
|
@singleton_classes = load_variable_map :c_singleton_class_variables
|
|
|
|
@markup = @options.markup
|
|
|
|
# class_variable => { function => [method, ...] }
|
|
@methods = Hash.new { |h, f| h[f] = Hash.new { |i, m| i[m] = [] } }
|
|
|
|
# missing variable => [handle_class_module arguments]
|
|
@missing_dependencies = {}
|
|
|
|
# missing enclosure variable => [dependent handle_class_module arguments]
|
|
@enclosure_dependencies = Hash.new { |h, k| h[k] = [] }
|
|
@enclosure_dependencies.instance_variable_set :@missing_dependencies,
|
|
@missing_dependencies
|
|
|
|
@enclosure_dependencies.extend TSort
|
|
|
|
def @enclosure_dependencies.tsort_each_node &block
|
|
each_key(&block)
|
|
rescue TSort::Cyclic => e
|
|
cycle_vars = e.message.scan(/"(.*?)"/).flatten
|
|
|
|
cycle = cycle_vars.sort.map do |var_name|
|
|
delete var_name
|
|
|
|
var_name, type, mod_name, = @missing_dependencies[var_name]
|
|
|
|
"#{type} #{mod_name} (#{var_name})"
|
|
end.join ', '
|
|
|
|
warn "Unable to create #{cycle} due to a cyclic class or module creation"
|
|
|
|
retry
|
|
end
|
|
|
|
def @enclosure_dependencies.tsort_each_child node, &block
|
|
fetch(node, []).each(&block)
|
|
end
|
|
end
|
|
|
|
##
|
|
# Scans #content for rb_define_alias
|
|
|
|
def do_aliases
|
|
@content.scan(/rb_define_alias\s*\(
|
|
\s*(\w+),
|
|
\s*"(.+?)",
|
|
\s*"(.+?)"
|
|
\s*\)/xm) do |var_name, new_name, old_name|
|
|
class_name = @known_classes[var_name]
|
|
|
|
unless class_name then
|
|
@options.warn "Enclosing class or module %p for alias %s %s is not known" % [
|
|
var_name, new_name, old_name]
|
|
next
|
|
end
|
|
|
|
class_obj = find_class var_name, class_name
|
|
comment = find_alias_comment var_name, new_name, old_name
|
|
comment.normalize
|
|
if comment.to_s.empty? and existing_method = class_obj.method_list.find { |m| m.name == old_name}
|
|
comment = existing_method.comment
|
|
end
|
|
add_alias(var_name, class_obj, old_name, new_name, comment)
|
|
end
|
|
end
|
|
|
|
##
|
|
# Add alias, either from a direct alias definition, or from two
|
|
# method that reference the same function.
|
|
|
|
def add_alias(var_name, class_obj, old_name, new_name, comment)
|
|
al = RDoc::Alias.new '', old_name, new_name, ''
|
|
al.singleton = @singleton_classes.key? var_name
|
|
al.comment = comment
|
|
al.record_location @top_level
|
|
class_obj.add_alias al
|
|
@stats.add_alias al
|
|
al
|
|
end
|
|
|
|
##
|
|
# Scans #content for rb_attr and rb_define_attr
|
|
|
|
def do_attrs
|
|
@content.scan(/rb_attr\s*\(
|
|
\s*(\w+),
|
|
\s*([\w"()]+),
|
|
#{BOOL_ARG_PATTERN},
|
|
#{BOOL_ARG_PATTERN},
|
|
\s*\w+\);/xmo) do |var_name, attr_name, read, write|
|
|
handle_attr var_name, attr_name, read, write
|
|
end
|
|
|
|
@content.scan(%r%rb_define_attr\(
|
|
\s*([\w\.]+),
|
|
\s*"([^"]+)",
|
|
#{BOOL_ARG_PATTERN},
|
|
#{BOOL_ARG_PATTERN}\);
|
|
%xmo) do |var_name, attr_name, read, write|
|
|
handle_attr var_name, attr_name, read, write
|
|
end
|
|
end
|
|
|
|
##
|
|
# Scans #content for boot_defclass
|
|
|
|
def do_boot_defclass
|
|
@content.scan(/(\w+)\s*=\s*boot_defclass\s*\(\s*"(\w+?)",\s*(\w+?)\s*\)/) do
|
|
|var_name, class_name, parent|
|
|
parent = nil if parent == "0"
|
|
handle_class_module(var_name, :class, class_name, parent, nil)
|
|
end
|
|
end
|
|
|
|
##
|
|
# Scans #content for rb_define_class, boot_defclass, rb_define_class_under
|
|
# and rb_singleton_class
|
|
|
|
def do_classes_and_modules
|
|
do_boot_defclass if @file_name == "class.c"
|
|
|
|
@content.scan(
|
|
%r(
|
|
(?<open>\s*\(\s*) {0}
|
|
(?<close>\s*\)\s*) {0}
|
|
(?<name>\s*"(?<class_name>\w+)") {0}
|
|
(?<parent>\s*(?:
|
|
(?<parent_name>[\w\*\s\(\)\.\->]+) |
|
|
rb_path2class\s*\(\s*"(?<path>[\w:]+)"\s*\)
|
|
)) {0}
|
|
(?<under>\w+) {0}
|
|
|
|
(?<var_name>[\w\.]+)\s* =
|
|
\s*rb_(?:
|
|
define_(?:
|
|
class(?: # rb_define_class(name, parent_name)
|
|
\(\s*
|
|
\g<name>,
|
|
\g<parent>
|
|
\s*\)
|
|
|
|
|
_under\g<open> # rb_define_class_under(under, name, parent_name...)
|
|
\g<under>,
|
|
\g<name>,
|
|
\g<parent>
|
|
\g<close>
|
|
)
|
|
|
|
|
(?<module>)
|
|
module(?: # rb_define_module(name)
|
|
\g<open>
|
|
\g<name>
|
|
\g<close>
|
|
|
|
|
_under\g<open> # rb_define_module_under(under, name)
|
|
\g<under>,
|
|
\g<name>
|
|
\g<close>
|
|
)
|
|
)
|
|
|
|
|
(?<attributes>(?:\s*"\w+",)*\s*NULL\s*) {0}
|
|
struct_define(?:
|
|
\g<open> # rb_struct_define(name, ...)
|
|
\g<name>,
|
|
|
|
|
_under\g<open> # rb_struct_define_under(under, name, ...)
|
|
\g<under>,
|
|
\g<name>,
|
|
|
|
|
_without_accessor(?:
|
|
\g<open> # rb_struct_define_without_accessor(name, parent_name, ...)
|
|
|
|
|
_under\g<open> # rb_struct_define_without_accessor_under(under, name, parent_name, ...)
|
|
\g<under>,
|
|
)
|
|
\g<name>,
|
|
\g<parent>,
|
|
\s*\w+, # Allocation function
|
|
)
|
|
\g<attributes>
|
|
\g<close>
|
|
|
|
|
singleton_class\g<open> # rb_singleton_class(target_class_name)
|
|
(?<target_class_name>\w+)
|
|
\g<close>
|
|
)
|
|
)mx
|
|
) do
|
|
if target_class_name = $~[:target_class_name]
|
|
# rb_singleton_class(target_class_name)
|
|
handle_singleton $~[:var_name], target_class_name
|
|
next
|
|
end
|
|
|
|
var_name = $~[:var_name]
|
|
type = $~[:module] ? :module : :class
|
|
class_name = $~[:class_name]
|
|
parent_name = $~[:parent_name] || $~[:path]
|
|
under = $~[:under]
|
|
attributes = $~[:attributes]
|
|
|
|
handle_class_module(var_name, type, class_name, parent_name, under)
|
|
if attributes and !parent_name # rb_struct_define *not* without_accessor
|
|
true_flag = 'Qtrue'
|
|
attributes.scan(/"\K\w+(?=")/) do |attr_name|
|
|
handle_attr var_name, attr_name, true_flag, true_flag
|
|
end
|
|
end
|
|
end
|
|
end
|
|
|
|
##
|
|
# Scans #content for rb_define_variable, rb_define_readonly_variable,
|
|
# rb_define_const and rb_define_global_const
|
|
|
|
def do_constants
|
|
@content.scan(%r%\Wrb_define_
|
|
( variable |
|
|
readonly_variable |
|
|
const |
|
|
global_const )
|
|
\s*\(
|
|
(?:\s*(\w+),)?
|
|
\s*"(\w+)",
|
|
\s*(.*?)\s*\)\s*;
|
|
%xm) do |type, var_name, const_name, definition|
|
|
var_name = "rb_cObject" if !var_name or var_name == "rb_mKernel"
|
|
handle_constants type, var_name, const_name, definition
|
|
end
|
|
|
|
@content.scan(%r%
|
|
\Wrb_curses_define_const
|
|
\s*\(
|
|
\s*
|
|
(\w+)
|
|
\s*
|
|
\)
|
|
\s*;%xm) do |consts|
|
|
const = consts.first
|
|
|
|
handle_constants 'const', 'mCurses', const, "UINT2NUM(#{const})"
|
|
end
|
|
|
|
@content.scan(%r%
|
|
\Wrb_file_const
|
|
\s*\(
|
|
\s*
|
|
"([^"]+)",
|
|
\s*
|
|
(.*?)
|
|
\s*
|
|
\)
|
|
\s*;%xm) do |name, value|
|
|
handle_constants 'const', 'rb_mFConst', name, value
|
|
end
|
|
end
|
|
|
|
|
|
##
|
|
# Scans #content for rb_include_module
|
|
|
|
def do_includes
|
|
@content.scan(/rb_include_module\s*\(\s*(\w+?),\s*(\w+?)\s*\)/) do |c,m|
|
|
next unless cls = @classes[c]
|
|
m = @known_classes[m] || m
|
|
|
|
comment = new_comment '', @top_level, :c
|
|
incl = cls.add_include RDoc::Include.new(m, comment)
|
|
incl.record_location @top_level
|
|
end
|
|
end
|
|
|
|
##
|
|
# Scans #content for rb_define_method, rb_define_singleton_method,
|
|
# rb_define_module_function, rb_define_private_method,
|
|
# rb_define_global_function and define_filetest_function
|
|
|
|
def do_methods
|
|
@content.scan(%r%rb_define_
|
|
(
|
|
singleton_method |
|
|
method |
|
|
module_function |
|
|
private_method
|
|
)
|
|
\s*\(\s*([\w\.]+),
|
|
\s*"([^"]+)",
|
|
\s*(?:RUBY_METHOD_FUNC\(|VALUEFUNC\(|\(METHOD\))?(\w+)\)?,
|
|
\s*(-?\w+)\s*\)
|
|
(?:;\s*/[*/]\s+in\s+(\w+?\.(?:cpp|c|y)))?
|
|
%xm) do |type, var_name, meth_name, function, param_count, source_file|
|
|
|
|
# Ignore top-object and weird struct.c dynamic stuff
|
|
next if var_name == "ruby_top_self"
|
|
next if var_name == "nstr"
|
|
|
|
var_name = "rb_cObject" if var_name == "rb_mKernel"
|
|
handle_method(type, var_name, meth_name, function, param_count,
|
|
source_file)
|
|
end
|
|
|
|
@content.scan(%r%rb_define_global_function\s*\(
|
|
\s*"([^"]+)",
|
|
\s*(?:RUBY_METHOD_FUNC\(|VALUEFUNC\()?(\w+)\)?,
|
|
\s*(-?\w+)\s*\)
|
|
(?:;\s*/[*/]\s+in\s+(\w+?\.[cy]))?
|
|
%xm) do |meth_name, function, param_count, source_file|
|
|
handle_method("method", "rb_mKernel", meth_name, function, param_count,
|
|
source_file)
|
|
end
|
|
|
|
@content.scan(/define_filetest_function\s*\(
|
|
\s*"([^"]+)",
|
|
\s*(?:RUBY_METHOD_FUNC\(|VALUEFUNC\()?(\w+)\)?,
|
|
\s*(-?\w+)\s*\)/xm) do |meth_name, function, param_count|
|
|
|
|
handle_method("method", "rb_mFileTest", meth_name, function, param_count)
|
|
handle_method("singleton_method", "rb_cFile", meth_name, function,
|
|
param_count)
|
|
end
|
|
end
|
|
|
|
##
|
|
# Creates classes and module that were missing were defined due to the file
|
|
# order being different than the declaration order.
|
|
|
|
def do_missing
|
|
return if @missing_dependencies.empty?
|
|
|
|
@enclosure_dependencies.tsort.each do |in_module|
|
|
arguments = @missing_dependencies.delete in_module
|
|
|
|
next unless arguments # dependency on existing class
|
|
|
|
handle_class_module(*arguments)
|
|
end
|
|
end
|
|
|
|
##
|
|
# Finds the comment for an alias on +class_name+ from +new_name+ to
|
|
# +old_name+
|
|
|
|
def find_alias_comment class_name, new_name, old_name
|
|
content =~ %r%((?>/\*.*?\*/\s+))
|
|
rb_define_alias\(\s*#{Regexp.escape class_name}\s*,
|
|
\s*"#{Regexp.escape new_name}"\s*,
|
|
\s*"#{Regexp.escape old_name}"\s*\);%xm
|
|
|
|
new_comment($1 || '', @top_level, :c)
|
|
end
|
|
|
|
##
|
|
# Finds a comment for rb_define_attr, rb_attr or Document-attr.
|
|
#
|
|
# +var_name+ is the C class variable the attribute is defined on.
|
|
# +attr_name+ is the attribute's name.
|
|
#
|
|
# +read+ and +write+ are the read/write flags ('1' or '0'). Either both or
|
|
# neither must be provided.
|
|
|
|
def find_attr_comment var_name, attr_name, read = nil, write = nil
|
|
attr_name = Regexp.escape attr_name
|
|
|
|
rw = if read and write then
|
|
/\s*#{read}\s*,\s*#{write}\s*/xm
|
|
else
|
|
/.*?/m
|
|
end
|
|
|
|
comment = if @content =~ %r%((?>/\*.*?\*/\s+))
|
|
rb_define_attr\((?:\s*#{var_name},)?\s*
|
|
"#{attr_name}"\s*,
|
|
#{rw}\)\s*;%xm then
|
|
$1
|
|
elsif @content =~ %r%((?>/\*.*?\*/\s+))
|
|
rb_attr\(\s*#{var_name}\s*,
|
|
\s*#{attr_name}\s*,
|
|
#{rw},.*?\)\s*;%xm then
|
|
$1
|
|
elsif @content =~ %r%(/\*.*?(?:\s*\*\s*)?)
|
|
Document-attr:\s#{attr_name}\s*?\n
|
|
((?>(.|\n)*?\*/))%x then
|
|
"#{$1}\n#{$2}"
|
|
else
|
|
''
|
|
end
|
|
|
|
new_comment comment, @top_level, :c
|
|
end
|
|
|
|
##
|
|
# Generate a Ruby-method table
|
|
|
|
def gen_body_table file_content
|
|
table = {}
|
|
file_content.scan(%r{
|
|
((?>/\*.*?\*/\s*)?)
|
|
((?:(?:\w+)\s+)?
|
|
(?:intern\s+)?VALUE\s+(\w+)
|
|
\s*(?:\([^)]*\))(?:[^\);]|$))
|
|
| ((?>/\*.*?\*/\s*))^\s*(\#\s*define\s+(\w+)\s+(\w+))
|
|
| ^\s*\#\s*define\s+(\w+)\s+(\w+)
|
|
}xm) do
|
|
case
|
|
when $1
|
|
table[$3] = [:func_def, $1, $2, $~.offset(2)] if !table[$3] || table[$3][0] != :func_def
|
|
when $4
|
|
table[$6] = [:macro_def, $4, $5, $~.offset(5), $7] if !table[$6] || table[$6][0] == :macro_alias
|
|
when $8
|
|
table[$8] ||= [:macro_alias, $9]
|
|
end
|
|
end
|
|
table
|
|
end
|
|
|
|
##
|
|
# Find the C code corresponding to a Ruby method
|
|
|
|
def find_body class_name, meth_name, meth_obj, file_content, quiet = false
|
|
if file_content
|
|
@body_table ||= {}
|
|
@body_table[file_content] ||= gen_body_table file_content
|
|
type, *args = @body_table[file_content][meth_name]
|
|
end
|
|
|
|
case type
|
|
when :func_def
|
|
comment = new_comment args[0], @top_level, :c
|
|
body = args[1]
|
|
offset, = args[2]
|
|
|
|
comment.remove_private if comment
|
|
|
|
# try to find the whole body
|
|
body = $& if /#{Regexp.escape body}[^(]*?\{.*?^\}/m =~ file_content
|
|
|
|
# The comment block may have been overridden with a 'Document-method'
|
|
# block. This happens in the interpreter when multiple methods are
|
|
# vectored through to the same C method but those methods are logically
|
|
# distinct (for example Kernel.hash and Kernel.object_id share the same
|
|
# implementation
|
|
|
|
override_comment = find_override_comment class_name, meth_obj
|
|
comment = override_comment if override_comment
|
|
|
|
comment.normalize
|
|
find_modifiers comment, meth_obj if comment
|
|
|
|
#meth_obj.params = params
|
|
meth_obj.start_collecting_tokens
|
|
tk = { :line_no => 1, :char_no => 1, :text => body }
|
|
meth_obj.add_token tk
|
|
meth_obj.comment = comment
|
|
meth_obj.line = file_content[0, offset].count("\n") + 1
|
|
|
|
body
|
|
when :macro_def
|
|
comment = new_comment args[0], @top_level, :c
|
|
body = args[1]
|
|
offset, = args[2]
|
|
|
|
find_body class_name, args[3], meth_obj, file_content, true
|
|
|
|
comment.normalize
|
|
find_modifiers comment, meth_obj
|
|
|
|
meth_obj.start_collecting_tokens
|
|
tk = { :line_no => 1, :char_no => 1, :text => body }
|
|
meth_obj.add_token tk
|
|
meth_obj.comment = comment
|
|
meth_obj.line = file_content[0, offset].count("\n") + 1
|
|
|
|
body
|
|
when :macro_alias
|
|
# with no comment we hope the aliased definition has it and use it's
|
|
# definition
|
|
|
|
body = find_body(class_name, args[0], meth_obj, file_content, true)
|
|
|
|
return body if body
|
|
|
|
@options.warn "No definition for #{meth_name}"
|
|
false
|
|
else # No body, but might still have an override comment
|
|
comment = find_override_comment class_name, meth_obj
|
|
|
|
if comment then
|
|
comment.normalize
|
|
find_modifiers comment, meth_obj
|
|
meth_obj.comment = comment
|
|
|
|
''
|
|
else
|
|
@options.warn "No definition for #{meth_name}"
|
|
false
|
|
end
|
|
end
|
|
end
|
|
|
|
##
|
|
# Finds a RDoc::NormalClass or RDoc::NormalModule for +raw_name+
|
|
|
|
def find_class(raw_name, name, base_name = nil)
|
|
unless @classes[raw_name]
|
|
if raw_name =~ /^rb_m/
|
|
container = @top_level.add_module RDoc::NormalModule, name
|
|
else
|
|
container = @top_level.add_class RDoc::NormalClass, name
|
|
end
|
|
container.name = base_name if base_name
|
|
|
|
container.record_location @top_level
|
|
@classes[raw_name] = container
|
|
end
|
|
@classes[raw_name]
|
|
end
|
|
|
|
##
|
|
# Look for class or module documentation above Init_+class_name+(void),
|
|
# in a Document-class +class_name+ (or module) comment or above an
|
|
# rb_define_class (or module). If a comment is supplied above a matching
|
|
# Init_ and a rb_define_class the Init_ comment is used.
|
|
#
|
|
# /*
|
|
# * This is a comment for Foo
|
|
# */
|
|
# Init_Foo(void) {
|
|
# VALUE cFoo = rb_define_class("Foo", rb_cObject);
|
|
# }
|
|
#
|
|
# /*
|
|
# * Document-class: Foo
|
|
# * This is a comment for Foo
|
|
# */
|
|
# Init_foo(void) {
|
|
# VALUE cFoo = rb_define_class("Foo", rb_cObject);
|
|
# }
|
|
#
|
|
# /*
|
|
# * This is a comment for Foo
|
|
# */
|
|
# VALUE cFoo = rb_define_class("Foo", rb_cObject);
|
|
|
|
def find_class_comment class_name, class_mod
|
|
comment = nil
|
|
|
|
if @content =~ %r%
|
|
((?>/\*.*?\*/\s+))
|
|
(static\s+)?
|
|
void\s+
|
|
Init(?:VM)?_(?i:#{class_name})\s*(?:_\(\s*)?\(\s*(?:void\s*)?\)%xm then
|
|
comment = $1.sub(%r%Document-(?:class|module):\s+#{class_name}%, '')
|
|
elsif @content =~ %r%Document-(?:class|module):\s+#{class_name}\s*?
|
|
(?:<\s+[:,\w]+)?\n((?>.*?\*/))%xm then
|
|
comment = "/*\n#{$1}"
|
|
elsif @content =~ %r%((?>/\*.*?\*/\s+))
|
|
([\w\.\s]+\s* = \s+)?rb_define_(class|module)[\t (]*?"(#{class_name})"%xm then
|
|
comment = $1
|
|
elsif @content =~ %r%((?>/\*.*?\*/\s+))
|
|
([\w\. \t]+ = \s+)?rb_define_(class|module)_under[\t\w, (]*?"(#{class_name.split('::').last})"%xm then
|
|
comment = $1
|
|
else
|
|
comment = ''
|
|
end
|
|
|
|
comment = new_comment comment, @top_level, :c
|
|
comment.normalize
|
|
|
|
look_for_directives_in class_mod, comment
|
|
|
|
class_mod.add_comment comment, @top_level
|
|
end
|
|
|
|
##
|
|
# Generate a const table
|
|
|
|
def gen_const_table file_content
|
|
table = {}
|
|
@content.scan(%r{
|
|
((?>^\s*/\*.*?\*/\s+))
|
|
rb_define_(\w+)\((?:\s*(?:\w+),)?\s*
|
|
"(\w+)"\s*,
|
|
.*?\)\s*;
|
|
| Document-(?:const|global|variable):\s
|
|
((?:\w+::)*\w+)
|
|
\s*?\n((?>.*?\*/))
|
|
}mxi) do
|
|
case
|
|
when $1 then table[[$2, $3]] = $1
|
|
when $4 then table[$4] = "/*\n" + $5
|
|
end
|
|
end
|
|
table
|
|
end
|
|
|
|
##
|
|
# Finds a comment matching +type+ and +const_name+ either above the
|
|
# comment or in the matching Document- section.
|
|
|
|
def find_const_comment(type, const_name, class_name = nil)
|
|
@const_table ||= {}
|
|
@const_table[@content] ||= gen_const_table @content
|
|
table = @const_table[@content]
|
|
|
|
comment =
|
|
table[[type, const_name]] ||
|
|
(class_name && table[class_name + "::" + const_name]) ||
|
|
table[const_name] ||
|
|
''
|
|
|
|
new_comment comment, @top_level, :c
|
|
end
|
|
|
|
##
|
|
# Handles modifiers in +comment+ and updates +meth_obj+ as appropriate.
|
|
|
|
def find_modifiers comment, meth_obj
|
|
comment.normalize
|
|
comment.extract_call_seq meth_obj
|
|
|
|
look_for_directives_in meth_obj, comment
|
|
end
|
|
|
|
##
|
|
# Finds a <tt>Document-method</tt> override for +meth_obj+ on +class_name+
|
|
|
|
def find_override_comment class_name, meth_obj
|
|
name = Regexp.escape meth_obj.name
|
|
prefix = Regexp.escape meth_obj.name_prefix
|
|
|
|
comment = if @content =~ %r%Document-method:
|
|
\s+#{class_name}#{prefix}#{name}
|
|
\s*?\n((?>.*?\*/))%xm then
|
|
"/*#{$1}"
|
|
elsif @content =~ %r%Document-method:
|
|
\s#{name}\s*?\n((?>.*?\*/))%xm then
|
|
"/*#{$1}"
|
|
end
|
|
|
|
return unless comment
|
|
|
|
new_comment comment, @top_level, :c
|
|
end
|
|
|
|
##
|
|
# Creates a new RDoc::Attr +attr_name+ on class +var_name+ that is either
|
|
# +read+, +write+ or both
|
|
|
|
def handle_attr(var_name, attr_name, read, write)
|
|
rw = ''
|
|
rw += 'R' if TRUE_VALUES.include?(read)
|
|
rw += 'W' if TRUE_VALUES.include?(write)
|
|
|
|
class_name = @known_classes[var_name]
|
|
|
|
return unless class_name
|
|
|
|
class_obj = find_class var_name, class_name
|
|
|
|
return unless class_obj
|
|
|
|
comment = find_attr_comment var_name, attr_name
|
|
comment.normalize
|
|
|
|
name = attr_name.gsub(/rb_intern(?:_const)?\("([^"]+)"\)/, '\1')
|
|
|
|
attr = RDoc::Attr.new '', name, rw, comment
|
|
|
|
attr.record_location @top_level
|
|
class_obj.add_attribute attr
|
|
@stats.add_attribute attr
|
|
end
|
|
|
|
##
|
|
# Creates a new RDoc::NormalClass or RDoc::NormalModule based on +type+
|
|
# named +class_name+ in +parent+ which was assigned to the C +var_name+.
|
|
|
|
def handle_class_module(var_name, type, class_name, parent, in_module)
|
|
parent_name = @known_classes[parent] || parent
|
|
|
|
if in_module then
|
|
enclosure = @classes[in_module] || @store.find_c_enclosure(in_module)
|
|
|
|
if enclosure.nil? and enclosure = @known_classes[in_module] then
|
|
enc_type = /^rb_m/ =~ in_module ? :module : :class
|
|
handle_class_module in_module, enc_type, enclosure, nil, nil
|
|
enclosure = @classes[in_module]
|
|
end
|
|
|
|
unless enclosure then
|
|
@enclosure_dependencies[in_module] << var_name
|
|
@missing_dependencies[var_name] =
|
|
[var_name, type, class_name, parent, in_module]
|
|
|
|
return
|
|
end
|
|
else
|
|
enclosure = @top_level
|
|
end
|
|
|
|
if type == :class then
|
|
full_name = if RDoc::ClassModule === enclosure then
|
|
enclosure.full_name + "::#{class_name}"
|
|
else
|
|
class_name
|
|
end
|
|
|
|
if @content =~ %r%Document-class:\s+#{full_name}\s*<\s+([:,\w]+)% then
|
|
parent_name = $1
|
|
end
|
|
|
|
cm = enclosure.add_class RDoc::NormalClass, class_name, parent_name
|
|
else
|
|
cm = enclosure.add_module RDoc::NormalModule, class_name
|
|
end
|
|
|
|
cm.record_location enclosure.top_level
|
|
|
|
find_class_comment cm.full_name, cm
|
|
|
|
case cm
|
|
when RDoc::NormalClass
|
|
@stats.add_class cm
|
|
when RDoc::NormalModule
|
|
@stats.add_module cm
|
|
end
|
|
|
|
@classes[var_name] = cm
|
|
@known_classes[var_name] = cm.full_name
|
|
@store.add_c_enclosure var_name, cm
|
|
end
|
|
|
|
##
|
|
# Adds constants. By providing some_value: at the start of the comment you
|
|
# can override the C value of the comment to give a friendly definition.
|
|
#
|
|
# /* 300: The perfect score in bowling */
|
|
# rb_define_const(cFoo, "PERFECT", INT2FIX(300));
|
|
#
|
|
# Will override <tt>INT2FIX(300)</tt> with the value +300+ in the output
|
|
# RDoc. Values may include quotes and escaped colons (\:).
|
|
|
|
def handle_constants(type, var_name, const_name, definition)
|
|
class_name = @known_classes[var_name]
|
|
|
|
return unless class_name
|
|
|
|
class_obj = find_class var_name, class_name, class_name[/::\K[^:]+\z/]
|
|
|
|
unless class_obj then
|
|
@options.warn 'Enclosing class or module %p is not known' % [const_name]
|
|
return
|
|
end
|
|
|
|
comment = find_const_comment type, const_name, class_name
|
|
comment.normalize
|
|
|
|
# In the case of rb_define_const, the definition and comment are in
|
|
# "/* definition: comment */" form. The literal ':' and '\' characters
|
|
# can be escaped with a backslash.
|
|
if type.downcase == 'const' then
|
|
no_match, new_definition, new_comment = comment.text.split(/(\A.*):/)
|
|
|
|
if no_match and no_match.empty? then
|
|
if new_definition.empty? then # Default to literal C definition
|
|
new_definition = definition
|
|
else
|
|
new_definition = new_definition.gsub("\:", ":")
|
|
new_definition = new_definition.gsub("\\", '\\')
|
|
end
|
|
|
|
new_definition.sub!(/\A(\s+)/, '')
|
|
|
|
new_comment = "#{$1}#{new_comment.lstrip}"
|
|
|
|
new_comment = self.new_comment(new_comment, @top_level, :c)
|
|
|
|
con = RDoc::Constant.new const_name, new_definition, new_comment
|
|
else
|
|
con = RDoc::Constant.new const_name, definition, comment
|
|
end
|
|
else
|
|
con = RDoc::Constant.new const_name, definition, comment
|
|
end
|
|
|
|
con.record_location @top_level
|
|
@stats.add_constant con
|
|
class_obj.add_constant con
|
|
end
|
|
|
|
##
|
|
# Removes #ifdefs that would otherwise confuse us
|
|
|
|
def handle_ifdefs_in(body)
|
|
body.gsub(/^#ifdef HAVE_PROTOTYPES.*?#else.*?\n(.*?)#endif.*?\n/m, '\1')
|
|
end
|
|
|
|
##
|
|
# Adds an RDoc::AnyMethod +meth_name+ defined on a class or module assigned
|
|
# to +var_name+. +type+ is the type of method definition function used.
|
|
# +singleton_method+ and +module_function+ create a singleton method.
|
|
|
|
def handle_method(type, var_name, meth_name, function, param_count,
|
|
source_file = nil)
|
|
class_name = @known_classes[var_name]
|
|
singleton = @singleton_classes.key? var_name
|
|
|
|
@methods[var_name][function] << meth_name
|
|
|
|
return unless class_name
|
|
|
|
class_obj = find_class var_name, class_name
|
|
|
|
if existing_method = class_obj.method_list.find { |m| m.c_function == function }
|
|
add_alias(var_name, class_obj, existing_method.name, meth_name, existing_method.comment)
|
|
end
|
|
|
|
if class_obj then
|
|
if meth_name == 'initialize' then
|
|
meth_name = 'new'
|
|
singleton = true
|
|
type = 'method' # force public
|
|
end
|
|
|
|
meth_obj = RDoc::AnyMethod.new '', meth_name
|
|
meth_obj.c_function = function
|
|
meth_obj.singleton =
|
|
singleton || %w[singleton_method module_function].include?(type)
|
|
|
|
p_count = Integer(param_count) rescue -1
|
|
|
|
if source_file then
|
|
file_name = File.join @file_dir, source_file
|
|
|
|
if File.exist? file_name then
|
|
file_content = File.read file_name
|
|
else
|
|
@options.warn "unknown source #{source_file} for #{meth_name} in #{@file_name}"
|
|
end
|
|
else
|
|
file_content = @content
|
|
end
|
|
|
|
body = find_body class_name, function, meth_obj, file_content
|
|
|
|
if body and meth_obj.document_self then
|
|
meth_obj.params = if p_count < -1 then # -2 is Array
|
|
'(*args)'
|
|
elsif p_count == -1 then # argc, argv
|
|
rb_scan_args body
|
|
else
|
|
args = (1..p_count).map { |i| "p#{i}" }
|
|
"(#{args.join ', '})"
|
|
end
|
|
|
|
|
|
meth_obj.record_location @top_level
|
|
|
|
if meth_obj.section_title
|
|
class_obj.temporary_section = class_obj.add_section(meth_obj.section_title)
|
|
end
|
|
class_obj.add_method meth_obj
|
|
|
|
@stats.add_method meth_obj
|
|
meth_obj.visibility = :private if 'private_method' == type
|
|
end
|
|
end
|
|
end
|
|
|
|
##
|
|
# Registers a singleton class +sclass_var+ as a singleton of +class_var+
|
|
|
|
def handle_singleton sclass_var, class_var
|
|
class_name = @known_classes[class_var]
|
|
|
|
@known_classes[sclass_var] = class_name
|
|
@singleton_classes[sclass_var] = class_name
|
|
end
|
|
|
|
##
|
|
# Normalizes tabs in +body+
|
|
|
|
def handle_tab_width(body)
|
|
if /\t/ =~ body
|
|
tab_width = @options.tab_width
|
|
body.split(/\n/).map do |line|
|
|
1 while line.gsub!(/\t+/) do
|
|
' ' * (tab_width * $&.length - $`.length % tab_width)
|
|
end && $~
|
|
line
|
|
end.join "\n"
|
|
else
|
|
body
|
|
end
|
|
end
|
|
|
|
##
|
|
# Loads the variable map with the given +name+ from the RDoc::Store, if
|
|
# present.
|
|
|
|
def load_variable_map map_name
|
|
return {} unless files = @store.cache[map_name]
|
|
return {} unless name_map = files[@file_name]
|
|
|
|
class_map = {}
|
|
|
|
name_map.each do |variable, name|
|
|
next unless mod = @store.find_class_or_module(name)
|
|
|
|
class_map[variable] = if map_name == :c_class_variables then
|
|
mod
|
|
else
|
|
name
|
|
end
|
|
@known_classes[variable] = name
|
|
end
|
|
|
|
class_map
|
|
end
|
|
|
|
##
|
|
# Look for directives in a normal comment block:
|
|
#
|
|
# /*
|
|
# * :title: My Awesome Project
|
|
# */
|
|
#
|
|
# This method modifies the +comment+
|
|
|
|
def look_for_directives_in context, comment
|
|
@preprocess.handle comment, context do |directive, param|
|
|
case directive
|
|
when 'main' then
|
|
@options.main_page = param
|
|
''
|
|
when 'title' then
|
|
@options.default_title = param if @options.respond_to? :default_title=
|
|
''
|
|
end
|
|
end
|
|
|
|
comment
|
|
end
|
|
|
|
##
|
|
# Extracts parameters from the +method_body+ and returns a method
|
|
# parameter string. Follows 1.9.3dev's scan-arg-spec, see README.EXT
|
|
|
|
def rb_scan_args method_body
|
|
method_body =~ /rb_scan_args\((.*?)\)/m
|
|
return '(*args)' unless $1
|
|
|
|
$1.split(/,/)[2] =~ /"(.*?)"/ # format argument
|
|
format = $1.split(//)
|
|
|
|
lead = opt = trail = 0
|
|
|
|
if format.first =~ /\d/ then
|
|
lead = $&.to_i
|
|
format.shift
|
|
if format.first =~ /\d/ then
|
|
opt = $&.to_i
|
|
format.shift
|
|
if format.first =~ /\d/ then
|
|
trail = $&.to_i
|
|
format.shift
|
|
block_arg = true
|
|
end
|
|
end
|
|
end
|
|
|
|
if format.first == '*' and not block_arg then
|
|
var = true
|
|
format.shift
|
|
if format.first =~ /\d/ then
|
|
trail = $&.to_i
|
|
format.shift
|
|
end
|
|
end
|
|
|
|
if format.first == ':' then
|
|
hash = true
|
|
format.shift
|
|
end
|
|
|
|
if format.first == '&' then
|
|
block = true
|
|
format.shift
|
|
end
|
|
|
|
# if the format string is not empty there's a bug in the C code, ignore it
|
|
|
|
args = []
|
|
position = 1
|
|
|
|
(1...(position + lead)).each do |index|
|
|
args << "p#{index}"
|
|
end
|
|
|
|
position += lead
|
|
|
|
(position...(position + opt)).each do |index|
|
|
args << "p#{index} = v#{index}"
|
|
end
|
|
|
|
position += opt
|
|
|
|
if var then
|
|
args << '*args'
|
|
position += 1
|
|
end
|
|
|
|
(position...(position + trail)).each do |index|
|
|
args << "p#{index}"
|
|
end
|
|
|
|
position += trail
|
|
|
|
if hash then
|
|
args << "p#{position} = {}"
|
|
end
|
|
|
|
args << '&block' if block
|
|
|
|
"(#{args.join ', '})"
|
|
end
|
|
|
|
##
|
|
# Removes lines that are commented out that might otherwise get picked up
|
|
# when scanning for classes and methods
|
|
|
|
def remove_commented_out_lines
|
|
@content = @content.gsub(%r%//.*rb_define_%, '//')
|
|
end
|
|
|
|
##
|
|
# Extracts the classes, modules, methods, attributes, constants and aliases
|
|
# from a C file and returns an RDoc::TopLevel for this file
|
|
|
|
def scan
|
|
remove_commented_out_lines
|
|
|
|
do_classes_and_modules
|
|
do_missing
|
|
|
|
do_constants
|
|
do_methods
|
|
do_includes
|
|
do_aliases
|
|
do_attrs
|
|
|
|
@store.add_c_variables self
|
|
|
|
@top_level
|
|
end
|
|
|
|
def new_comment text = nil, location = nil, language = nil
|
|
RDoc::Comment.new(text, location, language).tap do |comment|
|
|
comment.format = @markup
|
|
end
|
|
end
|
|
end
|