first commit
This commit is contained in:
@@ -0,0 +1,5 @@
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MRuby::Gem::Specification.new('mruby-struct') do |spec|
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spec.license = 'MIT'
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spec.author = 'mruby developers'
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spec.summary = 'standard Struct class'
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end
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@@ -0,0 +1,100 @@
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##
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# Struct
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#
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# ISO 15.2.18
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if Object.const_defined?(:Struct)
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class Struct
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##
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# Calls the given block for each element of +self+
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# and pass the respective element.
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#
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# ISO 15.2.18.4.4
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def each(&block)
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self.class.members.each{|field|
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block.call(self[field])
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}
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self
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end
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##
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# Calls the given block for each element of +self+
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# and pass the name and value of the respectiev
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# element.
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#
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# ISO 15.2.18.4.5
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def each_pair(&block)
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self.class.members.each{|field|
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block.call(field.to_sym, self[field])
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}
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self
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end
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##
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# Calls the given block for each element of +self+
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# and returns an array with all elements of which
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# block is not false.
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#
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# ISO 15.2.18.4.7
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def select(&block)
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ary = []
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self.class.members.each{|field|
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val = self[field]
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ary.push(val) if block.call(val)
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}
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ary
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end
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def _inspect(recur_list)
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return "#<struct #{self.class}:...>" if recur_list[self.object_id]
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recur_list[self.object_id] = true
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name = self.class.to_s
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if name[0] == "#"
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str = "#<struct "
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else
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str = "#<struct #{name} "
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end
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buf = []
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self.each_pair do |k,v|
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buf.push k.to_s + "=" + v._inspect(recur_list)
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end
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str + buf.join(", ") + ">"
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end
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##
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# call-seq:
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# struct.to_s -> string
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# struct.inspect -> string
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#
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# Describe the contents of this struct in a string.
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#
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# 15.2.18.4.10(x)
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#
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def inspect
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self._inspect({})
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end
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##
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# 15.2.18.4.11(x)
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#
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alias to_s inspect
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##
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# call-seq:
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# hsh.dig(key,...) -> object
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#
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# Extracts the nested value specified by the sequence of <i>key</i>
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# objects by calling +dig+ at each step, returning +nil+ if any
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# intermediate step is +nil+.
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#
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def dig(idx,*args)
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n = self[idx]
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if args.size > 0
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n&.dig(*args)
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else
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n
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end
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end
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end
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end
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@@ -0,0 +1,707 @@
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/*
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** struct.c - Struct class
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**
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** See Copyright Notice in mruby.h
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*/
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#include <string.h>
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#include <mruby.h>
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#include <mruby/array.h>
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#include <mruby/string.h>
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#include <mruby/class.h>
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#include <mruby/variable.h>
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#include <mruby/hash.h>
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#include <mruby/range.h>
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#include <mruby/proc.h>
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#define RSTRUCT_LEN(st) RARRAY_LEN(st)
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#define RSTRUCT_PTR(st) RARRAY_PTR(st)
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static struct RClass *
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struct_class(mrb_state *mrb)
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{
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return mrb_class_get(mrb, "Struct");
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}
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static inline mrb_value
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struct_ivar_get(mrb_state *mrb, mrb_value cls, mrb_sym id)
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{
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struct RClass* c = mrb_class_ptr(cls);
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struct RClass* sclass = struct_class(mrb);
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mrb_value ans;
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for (;;) {
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ans = mrb_iv_get(mrb, mrb_obj_value(c), id);
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if (!mrb_nil_p(ans)) return ans;
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c = c->super;
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if (c == sclass || c == 0)
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return mrb_nil_value();
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}
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}
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static mrb_value
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struct_s_members(mrb_state *mrb, struct RClass *klass)
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{
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mrb_value members = struct_ivar_get(mrb, mrb_obj_value(klass), mrb_intern_lit(mrb, "__members__"));
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if (mrb_nil_p(members)) {
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mrb_raise(mrb, E_TYPE_ERROR, "uninitialized struct");
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}
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if (!mrb_array_p(members)) {
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mrb_raise(mrb, E_TYPE_ERROR, "corrupted struct");
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}
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return members;
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}
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static mrb_value
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struct_members(mrb_state *mrb, mrb_value s)
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{
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mrb_value members = struct_s_members(mrb, mrb_obj_class(mrb, s));
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if (!mrb_array_p(s)) {
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mrb_raise(mrb, E_TYPE_ERROR, "corrupted struct");
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}
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if (RSTRUCT_LEN(s) != RARRAY_LEN(members)) {
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if (RSTRUCT_LEN(s) == 0) { /* probably uninitialized */
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mrb_ary_resize(mrb, s, RARRAY_LEN(members));
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}
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else {
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mrb_raisef(mrb, E_TYPE_ERROR,
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"struct size differs (%i required %i given)",
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RARRAY_LEN(members), RSTRUCT_LEN(s));
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}
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}
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return members;
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}
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static mrb_value
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mrb_struct_s_members_m(mrb_state *mrb, mrb_value klass)
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{
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mrb_value members, ary;
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members = struct_s_members(mrb, mrb_class_ptr(klass));
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ary = mrb_ary_new_capa(mrb, RARRAY_LEN(members));
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mrb_ary_replace(mrb, ary, members);
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return ary;
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}
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static void
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mrb_struct_modify(mrb_state *mrb, mrb_value strct)
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{
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mrb_check_frozen(mrb, mrb_basic_ptr(strct));
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mrb_write_barrier(mrb, mrb_basic_ptr(strct));
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}
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/* 15.2.18.4.6 */
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/*
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* call-seq:
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* struct.members -> array
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*
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* Returns an array of strings representing the names of the instance
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* variables.
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*
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* Customer = Struct.new(:name, :address, :zip)
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* joe = Customer.new("Joe Smith", "123 Maple, Anytown NC", 12345)
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* joe.members #=> [:name, :address, :zip]
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*/
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static mrb_value
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mrb_struct_members(mrb_state *mrb, mrb_value obj)
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{
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return mrb_struct_s_members_m(mrb, mrb_obj_value(mrb_obj_class(mrb, obj)));
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}
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static mrb_value
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mrb_struct_ref(mrb_state *mrb, mrb_value obj)
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{
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mrb_int i = mrb_fixnum(mrb_proc_cfunc_env_get(mrb, 0));
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mrb_value *ptr = RSTRUCT_PTR(obj);
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if (!ptr) return mrb_nil_value();
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return ptr[i];
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}
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static mrb_sym
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mrb_id_attrset(mrb_state *mrb, mrb_sym id)
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{
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#define ONSTACK_ALLOC_MAX 32
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#define ONSTACK_STRLEN_MAX (ONSTACK_ALLOC_MAX - 1) /* '=' character */
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const char *name;
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char *buf;
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mrb_int len;
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mrb_sym mid;
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char onstack[ONSTACK_ALLOC_MAX];
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name = mrb_sym_name_len(mrb, id, &len);
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if (len > ONSTACK_STRLEN_MAX) {
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buf = (char *)mrb_malloc(mrb, (size_t)len+1);
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}
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else {
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buf = onstack;
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}
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memcpy(buf, name, (size_t)len);
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buf[len] = '=';
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mid = mrb_intern(mrb, buf, len+1);
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if (buf != onstack) {
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mrb_free(mrb, buf);
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}
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return mid;
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}
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static mrb_value
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mrb_struct_set_m(mrb_state *mrb, mrb_value obj)
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{
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mrb_int i = mrb_fixnum(mrb_proc_cfunc_env_get(mrb, 0));
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mrb_value *ptr;
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mrb_value val = mrb_get_arg1(mrb);
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mrb_struct_modify(mrb, obj);
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ptr = RSTRUCT_PTR(obj);
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if (ptr == NULL || i >= RSTRUCT_LEN(obj)) {
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mrb_ary_set(mrb, obj, i, val);
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}
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else {
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ptr[i] = val;
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}
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return val;
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}
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static void
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make_struct_define_accessors(mrb_state *mrb, mrb_value members, struct RClass *c)
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{
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const mrb_value *ptr_members = RARRAY_PTR(members);
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mrb_int i;
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mrb_int len = RARRAY_LEN(members);
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int ai = mrb_gc_arena_save(mrb);
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for (i=0; i<len; i++) {
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mrb_sym id = mrb_symbol(ptr_members[i]);
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mrb_method_t m;
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mrb_value at = mrb_fixnum_value(i);
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struct RProc *aref = mrb_proc_new_cfunc_with_env(mrb, mrb_struct_ref, 1, &at);
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struct RProc *aset = mrb_proc_new_cfunc_with_env(mrb, mrb_struct_set_m, 1, &at);
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MRB_METHOD_FROM_PROC(m, aref);
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mrb_define_method_raw(mrb, c, id, m);
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MRB_METHOD_FROM_PROC(m, aset);
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mrb_define_method_raw(mrb, c, mrb_id_attrset(mrb, id), m);
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mrb_gc_arena_restore(mrb, ai);
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}
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}
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static mrb_value
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make_struct(mrb_state *mrb, mrb_value name, mrb_value members, struct RClass *klass)
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{
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mrb_value nstr;
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mrb_sym id;
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struct RClass *c;
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if (mrb_nil_p(name)) {
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c = mrb_class_new(mrb, klass);
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}
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else {
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/* old style: should we warn? */
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mrb_to_str(mrb, name);
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id = mrb_obj_to_sym(mrb, name);
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if (!mrb_const_name_p(mrb, RSTRING_PTR(name), RSTRING_LEN(name))) {
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mrb_name_error(mrb, id, "identifier %v needs to be constant", name);
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}
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if (mrb_const_defined_at(mrb, mrb_obj_value(klass), id)) {
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mrb_warn(mrb, "redefining constant Struct::%v", name);
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mrb_const_remove(mrb, mrb_obj_value(klass), id);
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}
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c = mrb_define_class_under(mrb, klass, RSTRING_PTR(name), klass);
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}
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MRB_SET_INSTANCE_TT(c, MRB_TT_ARRAY);
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nstr = mrb_obj_value(c);
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mrb_iv_set(mrb, nstr, mrb_intern_lit(mrb, "__members__"), members);
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mrb_define_class_method(mrb, c, "new", mrb_instance_new, MRB_ARGS_ANY());
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mrb_define_class_method(mrb, c, "[]", mrb_instance_new, MRB_ARGS_ANY());
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mrb_define_class_method(mrb, c, "members", mrb_struct_s_members_m, MRB_ARGS_NONE());
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/* RSTRUCT(nstr)->basic.c->super = c->c; */
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make_struct_define_accessors(mrb, members, c);
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return nstr;
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}
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/* 15.2.18.3.1 */
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/*
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* call-seq:
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* Struct.new( [aString] [, aSym]+> ) -> StructClass
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* StructClass.new(arg, ...) -> obj
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* StructClass[arg, ...] -> obj
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*
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* Creates a new class, named by <i>aString</i>, containing accessor
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* methods for the given symbols. If the name <i>aString</i> is
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* omitted, an anonymous structure class will be created. Otherwise,
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* the name of this struct will appear as a constant in class
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* <code>Struct</code>, so it must be unique for all
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* <code>Struct</code>s in the system and should start with a capital
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* letter. Assigning a structure class to a constant effectively gives
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* the class the name of the constant.
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*
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* <code>Struct::new</code> returns a new <code>Class</code> object,
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* which can then be used to create specific instances of the new
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* structure. The number of actual parameters must be
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* less than or equal to the number of attributes defined for this
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* class; unset parameters default to <code>nil</code>. Passing too many
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* parameters will raise an <code>ArgumentError</code>.
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*
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* The remaining methods listed in this section (class and instance)
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* are defined for this generated class.
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*
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* # Create a structure with a name in Struct
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* Struct.new("Customer", :name, :address) #=> Struct::Customer
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* Struct::Customer.new("Dave", "123 Main") #=> #<struct Struct::Customer name="Dave", address="123 Main">
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*
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* # Create a structure named by its constant
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* Customer = Struct.new(:name, :address) #=> Customer
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* Customer.new("Dave", "123 Main") #=> #<struct Customer name="Dave", address="123 Main">
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*/
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static mrb_value
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mrb_struct_s_def(mrb_state *mrb, mrb_value klass)
|
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{
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mrb_value name, rest;
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mrb_value *pargv;
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mrb_int argcnt;
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||||
mrb_int i;
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mrb_value b, st;
|
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mrb_sym id;
|
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mrb_value *argv;
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||||
mrb_int argc;
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name = mrb_nil_value();
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mrb_get_args(mrb, "*&", &argv, &argc, &b);
|
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if (argc == 0) { /* special case to avoid crash */
|
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mrb_argnum_error(mrb, argc, 1, -1);
|
||||
}
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else {
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pargv = argv;
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argcnt = argc;
|
||||
if (argc > 0) {
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name = argv[0];
|
||||
if (mrb_symbol_p(name)) {
|
||||
/* 1stArgument:symbol -> name=nil rest=argv[0..n] */
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name = mrb_nil_value();
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||||
}
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||||
else {
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pargv++;
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argcnt--;
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||||
}
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||||
}
|
||||
rest = mrb_ary_new_from_values(mrb, argcnt, pargv);
|
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for (i=0; i<argcnt; i++) {
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id = mrb_obj_to_sym(mrb, RARRAY_PTR(rest)[i]);
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mrb_ary_set(mrb, rest, i, mrb_symbol_value(id));
|
||||
}
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||||
st = make_struct(mrb, name, rest, mrb_class_ptr(klass));
|
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if (!mrb_nil_p(b)) {
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mrb_yield_with_class(mrb, b, 1, &st, st, mrb_class_ptr(st));
|
||||
}
|
||||
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||||
return st;
|
||||
}
|
||||
/* not reached */
|
||||
return mrb_nil_value();
|
||||
}
|
||||
|
||||
static mrb_int
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||||
num_members(mrb_state *mrb, struct RClass *klass)
|
||||
{
|
||||
mrb_value members;
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||||
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||||
members = struct_ivar_get(mrb, mrb_obj_value(klass), mrb_intern_lit(mrb, "__members__"));
|
||||
if (!mrb_array_p(members)) {
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||||
mrb_raise(mrb, E_TYPE_ERROR, "broken members");
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||||
}
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||||
return RARRAY_LEN(members);
|
||||
}
|
||||
|
||||
/* 15.2.18.4.8 */
|
||||
/*
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||||
*/
|
||||
static mrb_value
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||||
mrb_struct_initialize_withArg(mrb_state *mrb, mrb_int argc, mrb_value *argv, mrb_value self)
|
||||
{
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||||
struct RClass *klass = mrb_obj_class(mrb, self);
|
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mrb_int i, n;
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||||
|
||||
n = num_members(mrb, klass);
|
||||
if (n < argc) {
|
||||
mrb_raise(mrb, E_ARGUMENT_ERROR, "struct size differs");
|
||||
}
|
||||
|
||||
for (i = 0; i < argc; i++) {
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||||
mrb_ary_set(mrb, self, i, argv[i]);
|
||||
}
|
||||
for (i = argc; i < n; i++) {
|
||||
mrb_ary_set(mrb, self, i, mrb_nil_value());
|
||||
}
|
||||
return self;
|
||||
}
|
||||
|
||||
static mrb_value
|
||||
mrb_struct_initialize(mrb_state *mrb, mrb_value self)
|
||||
{
|
||||
mrb_value *argv;
|
||||
mrb_int argc;
|
||||
|
||||
mrb_get_args(mrb, "*!", &argv, &argc);
|
||||
return mrb_struct_initialize_withArg(mrb, argc, argv, self);
|
||||
}
|
||||
|
||||
/* 15.2.18.4.9 */
|
||||
/* :nodoc: */
|
||||
static mrb_value
|
||||
mrb_struct_init_copy(mrb_state *mrb, mrb_value copy)
|
||||
{
|
||||
mrb_value s = mrb_get_arg1(mrb);
|
||||
|
||||
if (mrb_obj_equal(mrb, copy, s)) return copy;
|
||||
if (!mrb_obj_is_instance_of(mrb, s, mrb_obj_class(mrb, copy))) {
|
||||
mrb_raise(mrb, E_TYPE_ERROR, "wrong argument class");
|
||||
}
|
||||
if (!mrb_array_p(s)) {
|
||||
mrb_raise(mrb, E_TYPE_ERROR, "corrupted struct");
|
||||
}
|
||||
mrb_ary_replace(mrb, copy, s);
|
||||
return copy;
|
||||
}
|
||||
|
||||
static mrb_value
|
||||
struct_aref_sym(mrb_state *mrb, mrb_value obj, mrb_sym id)
|
||||
{
|
||||
mrb_value members, *ptr;
|
||||
const mrb_value *ptr_members;
|
||||
mrb_int i, len;
|
||||
|
||||
members = struct_members(mrb, obj);
|
||||
ptr_members = RARRAY_PTR(members);
|
||||
len = RARRAY_LEN(members);
|
||||
ptr = RSTRUCT_PTR(obj);
|
||||
for (i=0; i<len; i++) {
|
||||
mrb_value slot = ptr_members[i];
|
||||
if (mrb_symbol_p(slot) && mrb_symbol(slot) == id) {
|
||||
return ptr[i];
|
||||
}
|
||||
}
|
||||
mrb_name_error(mrb, id, "no member '%n' in struct", id);
|
||||
return mrb_nil_value(); /* not reached */
|
||||
}
|
||||
|
||||
static mrb_value
|
||||
struct_aref_int(mrb_state *mrb, mrb_value s, mrb_int i)
|
||||
{
|
||||
mrb_int idx = i < 0 ? RSTRUCT_LEN(s) + i : i;
|
||||
|
||||
if (idx < 0)
|
||||
mrb_raisef(mrb, E_INDEX_ERROR,
|
||||
"offset %i too small for struct(size:%i)", i, RSTRUCT_LEN(s));
|
||||
if (RSTRUCT_LEN(s) <= idx)
|
||||
mrb_raisef(mrb, E_INDEX_ERROR,
|
||||
"offset %i too large for struct(size:%i)", i, RSTRUCT_LEN(s));
|
||||
return RSTRUCT_PTR(s)[idx];
|
||||
}
|
||||
|
||||
/* 15.2.18.4.2 */
|
||||
/*
|
||||
* call-seq:
|
||||
* struct[symbol] -> anObject
|
||||
* struct[fixnum] -> anObject
|
||||
*
|
||||
* Attribute Reference---Returns the value of the instance variable
|
||||
* named by <i>symbol</i>, or indexed (0..length-1) by
|
||||
* <i>fixnum</i>. Will raise <code>NameError</code> if the named
|
||||
* variable does not exist, or <code>IndexError</code> if the index is
|
||||
* out of range.
|
||||
*
|
||||
* Customer = Struct.new(:name, :address, :zip)
|
||||
* joe = Customer.new("Joe Smith", "123 Maple, Anytown NC", 12345)
|
||||
*
|
||||
* joe["name"] #=> "Joe Smith"
|
||||
* joe[:name] #=> "Joe Smith"
|
||||
* joe[0] #=> "Joe Smith"
|
||||
*/
|
||||
static mrb_value
|
||||
mrb_struct_aref(mrb_state *mrb, mrb_value s)
|
||||
{
|
||||
mrb_value idx = mrb_get_arg1(mrb);
|
||||
|
||||
if (mrb_string_p(idx)) {
|
||||
mrb_value sym = mrb_check_intern_str(mrb, idx);
|
||||
|
||||
if (mrb_nil_p(sym)) {
|
||||
mrb_name_error(mrb, mrb_intern_str(mrb, idx), "no member '%v' in struct", idx);
|
||||
}
|
||||
idx = sym;
|
||||
}
|
||||
if (mrb_symbol_p(idx)) {
|
||||
return struct_aref_sym(mrb, s, mrb_symbol(idx));
|
||||
}
|
||||
return struct_aref_int(mrb, s, mrb_int(mrb, idx));
|
||||
}
|
||||
|
||||
static mrb_value
|
||||
mrb_struct_aset_sym(mrb_state *mrb, mrb_value s, mrb_sym id, mrb_value val)
|
||||
{
|
||||
mrb_value members, *ptr;
|
||||
const mrb_value *ptr_members;
|
||||
mrb_int i, len;
|
||||
|
||||
members = struct_members(mrb, s);
|
||||
len = RARRAY_LEN(members);
|
||||
ptr = RSTRUCT_PTR(s);
|
||||
ptr_members = RARRAY_PTR(members);
|
||||
for (i=0; i<len; i++) {
|
||||
if (mrb_symbol(ptr_members[i]) == id) {
|
||||
mrb_struct_modify(mrb, s);
|
||||
ptr[i] = val;
|
||||
return val;
|
||||
}
|
||||
}
|
||||
mrb_name_error(mrb, id, "no member '%n' in struct", id);
|
||||
return val; /* not reach */
|
||||
}
|
||||
|
||||
/* 15.2.18.4.3 */
|
||||
/*
|
||||
* call-seq:
|
||||
* struct[symbol] = obj -> obj
|
||||
* struct[fixnum] = obj -> obj
|
||||
*
|
||||
* Attribute Assignment---Assigns to the instance variable named by
|
||||
* <i>symbol</i> or <i>fixnum</i> the value <i>obj</i> and
|
||||
* returns it. Will raise a <code>NameError</code> if the named
|
||||
* variable does not exist, or an <code>IndexError</code> if the index
|
||||
* is out of range.
|
||||
*
|
||||
* Customer = Struct.new(:name, :address, :zip)
|
||||
* joe = Customer.new("Joe Smith", "123 Maple, Anytown NC", 12345)
|
||||
*
|
||||
* joe["name"] = "Luke"
|
||||
* joe[:zip] = "90210"
|
||||
*
|
||||
* joe.name #=> "Luke"
|
||||
* joe.zip #=> "90210"
|
||||
*/
|
||||
|
||||
static mrb_value
|
||||
mrb_struct_aset(mrb_state *mrb, mrb_value s)
|
||||
{
|
||||
mrb_int i;
|
||||
mrb_value idx;
|
||||
mrb_value val;
|
||||
|
||||
mrb_get_args(mrb, "oo", &idx, &val);
|
||||
|
||||
if (mrb_string_p(idx)) {
|
||||
mrb_value sym = mrb_check_intern_str(mrb, idx);
|
||||
|
||||
if (mrb_nil_p(sym)) {
|
||||
mrb_name_error(mrb, mrb_intern_str(mrb, idx), "no member '%v' in struct", idx);
|
||||
}
|
||||
idx = sym;
|
||||
}
|
||||
if (mrb_symbol_p(idx)) {
|
||||
return mrb_struct_aset_sym(mrb, s, mrb_symbol(idx), val);
|
||||
}
|
||||
|
||||
i = mrb_int(mrb, idx);
|
||||
if (i < 0) i = RSTRUCT_LEN(s) + i;
|
||||
if (i < 0) {
|
||||
mrb_raisef(mrb, E_INDEX_ERROR,
|
||||
"offset %i too small for struct(size:%i)", i, RSTRUCT_LEN(s));
|
||||
}
|
||||
if (RSTRUCT_LEN(s) <= i) {
|
||||
mrb_raisef(mrb, E_INDEX_ERROR,
|
||||
"offset %i too large for struct(size:%i)", i, RSTRUCT_LEN(s));
|
||||
}
|
||||
mrb_struct_modify(mrb, s);
|
||||
return RSTRUCT_PTR(s)[i] = val;
|
||||
}
|
||||
|
||||
/* 15.2.18.4.1 */
|
||||
/*
|
||||
* call-seq:
|
||||
* struct == other_struct -> true or false
|
||||
*
|
||||
* Equality---Returns <code>true</code> if <i>other_struct</i> is
|
||||
* equal to this one: they must be of the same class as generated by
|
||||
* <code>Struct::new</code>, and the values of all instance variables
|
||||
* must be equal (according to <code>Object#==</code>).
|
||||
*
|
||||
* Customer = Struct.new(:name, :address, :zip)
|
||||
* joe = Customer.new("Joe Smith", "123 Maple, Anytown NC", 12345)
|
||||
* joejr = Customer.new("Joe Smith", "123 Maple, Anytown NC", 12345)
|
||||
* jane = Customer.new("Jane Doe", "456 Elm, Anytown NC", 12345)
|
||||
* joe == joejr #=> true
|
||||
* joe == jane #=> false
|
||||
*/
|
||||
|
||||
static mrb_value
|
||||
mrb_struct_equal(mrb_state *mrb, mrb_value s)
|
||||
{
|
||||
mrb_value s2 = mrb_get_arg1(mrb);
|
||||
mrb_value *ptr, *ptr2;
|
||||
mrb_int i, len;
|
||||
|
||||
if (mrb_obj_equal(mrb, s, s2)) {
|
||||
return mrb_true_value();
|
||||
}
|
||||
if (mrb_obj_class(mrb, s) != mrb_obj_class(mrb, s2)) {
|
||||
return mrb_false_value();
|
||||
}
|
||||
if (RSTRUCT_LEN(s) != RSTRUCT_LEN(s2)) {
|
||||
mrb_bug(mrb, "inconsistent struct"); /* should never happen */
|
||||
}
|
||||
ptr = RSTRUCT_PTR(s);
|
||||
ptr2 = RSTRUCT_PTR(s2);
|
||||
len = RSTRUCT_LEN(s);
|
||||
for (i=0; i<len; i++) {
|
||||
if (!mrb_equal(mrb, ptr[i], ptr2[i])) {
|
||||
return mrb_false_value();
|
||||
}
|
||||
}
|
||||
|
||||
return mrb_true_value();
|
||||
}
|
||||
|
||||
/* 15.2.18.4.12(x) */
|
||||
/*
|
||||
* code-seq:
|
||||
* struct.eql?(other) -> true or false
|
||||
*
|
||||
* Two structures are equal if they are the same object, or if all their
|
||||
* fields are equal (using <code>eql?</code>).
|
||||
*/
|
||||
static mrb_value
|
||||
mrb_struct_eql(mrb_state *mrb, mrb_value s)
|
||||
{
|
||||
mrb_value s2 = mrb_get_arg1(mrb);
|
||||
mrb_value *ptr, *ptr2;
|
||||
mrb_int i, len;
|
||||
|
||||
if (mrb_obj_equal(mrb, s, s2)) {
|
||||
return mrb_true_value();
|
||||
}
|
||||
if (mrb_obj_class(mrb, s) != mrb_obj_class(mrb, s2)) {
|
||||
return mrb_false_value();
|
||||
}
|
||||
if (RSTRUCT_LEN(s) != RSTRUCT_LEN(s2)) {
|
||||
mrb_bug(mrb, "inconsistent struct"); /* should never happen */
|
||||
}
|
||||
ptr = RSTRUCT_PTR(s);
|
||||
ptr2 = RSTRUCT_PTR(s2);
|
||||
len = RSTRUCT_LEN(s);
|
||||
for (i=0; i<len; i++) {
|
||||
if (!mrb_eql(mrb, ptr[i], ptr2[i])) {
|
||||
return mrb_false_value();
|
||||
}
|
||||
}
|
||||
|
||||
return mrb_true_value();
|
||||
}
|
||||
|
||||
/*
|
||||
* call-seq:
|
||||
* struct.length -> Fixnum
|
||||
* struct.size -> Fixnum
|
||||
*
|
||||
* Returns number of struct members.
|
||||
*/
|
||||
static mrb_value
|
||||
mrb_struct_len(mrb_state *mrb, mrb_value self)
|
||||
{
|
||||
return mrb_fixnum_value(RSTRUCT_LEN(self));
|
||||
}
|
||||
|
||||
/*
|
||||
* call-seq:
|
||||
* struct.to_a -> array
|
||||
* struct.values -> array
|
||||
*
|
||||
* Create an array from struct values.
|
||||
*/
|
||||
static mrb_value
|
||||
mrb_struct_to_a(mrb_state *mrb, mrb_value self)
|
||||
{
|
||||
return mrb_ary_new_from_values(mrb, RSTRUCT_LEN(self), RSTRUCT_PTR(self));
|
||||
}
|
||||
|
||||
/*
|
||||
* call-seq:
|
||||
* struct.to_h -> hash
|
||||
*
|
||||
* Create a hash from member names and struct values.
|
||||
*/
|
||||
static mrb_value
|
||||
mrb_struct_to_h(mrb_state *mrb, mrb_value self)
|
||||
{
|
||||
mrb_value members, ret;
|
||||
mrb_int i;
|
||||
|
||||
members = struct_members(mrb, self);
|
||||
ret = mrb_hash_new_capa(mrb, RARRAY_LEN(members));
|
||||
|
||||
for (i = 0; i < RARRAY_LEN(members); ++i) {
|
||||
mrb_hash_set(mrb, ret, RARRAY_PTR(members)[i], RSTRUCT_PTR(self)[i]);
|
||||
}
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
static mrb_value
|
||||
mrb_struct_values_at(mrb_state *mrb, mrb_value self)
|
||||
{
|
||||
mrb_int argc;
|
||||
mrb_value *argv;
|
||||
|
||||
mrb_get_args(mrb, "*", &argv, &argc);
|
||||
|
||||
return mrb_get_values_at(mrb, self, RSTRUCT_LEN(self), argc, argv, struct_aref_int);
|
||||
}
|
||||
|
||||
/*
|
||||
* A <code>Struct</code> is a convenient way to bundle a number of
|
||||
* attributes together, using accessor methods, without having to write
|
||||
* an explicit class.
|
||||
*
|
||||
* The <code>Struct</code> class is a generator of specific classes,
|
||||
* each one of which is defined to hold a set of variables and their
|
||||
* accessors. In these examples, we'll call the generated class
|
||||
* "<i>Customer</i>Class," and we'll show an example instance of that
|
||||
* class as "<i>Customer</i>Inst."
|
||||
*
|
||||
* In the descriptions that follow, the parameter <i>symbol</i> refers
|
||||
* to a symbol, which is either a quoted string or a
|
||||
* <code>Symbol</code> (such as <code>:name</code>).
|
||||
*/
|
||||
void
|
||||
mrb_mruby_struct_gem_init(mrb_state* mrb)
|
||||
{
|
||||
struct RClass *st;
|
||||
st = mrb_define_class(mrb, "Struct", mrb->object_class);
|
||||
MRB_SET_INSTANCE_TT(st, MRB_TT_ARRAY);
|
||||
|
||||
mrb_define_class_method(mrb, st, "new", mrb_struct_s_def, MRB_ARGS_ANY()); /* 15.2.18.3.1 */
|
||||
|
||||
mrb_define_method(mrb, st, "==", mrb_struct_equal, MRB_ARGS_REQ(1)); /* 15.2.18.4.1 */
|
||||
mrb_define_method(mrb, st, "[]", mrb_struct_aref, MRB_ARGS_REQ(1)); /* 15.2.18.4.2 */
|
||||
mrb_define_method(mrb, st, "[]=", mrb_struct_aset, MRB_ARGS_REQ(2)); /* 15.2.18.4.3 */
|
||||
mrb_define_method(mrb, st, "members", mrb_struct_members, MRB_ARGS_NONE()); /* 15.2.18.4.6 */
|
||||
mrb_define_method(mrb, st, "initialize", mrb_struct_initialize, MRB_ARGS_ANY()); /* 15.2.18.4.8 */
|
||||
mrb_define_method(mrb, st, "initialize_copy", mrb_struct_init_copy, MRB_ARGS_REQ(1)); /* 15.2.18.4.9 */
|
||||
mrb_define_method(mrb, st, "eql?", mrb_struct_eql, MRB_ARGS_REQ(1)); /* 15.2.18.4.12(x) */
|
||||
|
||||
mrb_define_method(mrb, st, "size", mrb_struct_len, MRB_ARGS_NONE());
|
||||
mrb_define_method(mrb, st, "length", mrb_struct_len, MRB_ARGS_NONE());
|
||||
mrb_define_method(mrb, st, "to_a", mrb_struct_to_a, MRB_ARGS_NONE());
|
||||
mrb_define_method(mrb, st, "values", mrb_struct_to_a, MRB_ARGS_NONE());
|
||||
mrb_define_method(mrb, st, "to_h", mrb_struct_to_h, MRB_ARGS_NONE());
|
||||
mrb_define_method(mrb, st, "values_at", mrb_struct_values_at, MRB_ARGS_ANY());
|
||||
}
|
||||
|
||||
void
|
||||
mrb_mruby_struct_gem_final(mrb_state* mrb)
|
||||
{
|
||||
}
|
||||
@@ -0,0 +1,210 @@
|
||||
##
|
||||
# Struct ISO Test
|
||||
|
||||
assert('Struct', '15.2.18') do
|
||||
assert_equal Class, Struct.class
|
||||
end
|
||||
|
||||
assert('Struct.new', '15.2.18.3.1') do
|
||||
c = Struct.new(:m1, :m2)
|
||||
assert_equal Struct, c.superclass
|
||||
assert_equal [:m1, :m2], c.members
|
||||
end
|
||||
|
||||
assert('Struct#==', '15.2.18.4.1') do
|
||||
c = Struct.new(:m1, :m2)
|
||||
cc1 = c.new(1,2)
|
||||
cc2 = c.new(1,2)
|
||||
assert_true cc1 == cc2
|
||||
|
||||
Struct.new(:m1, :m2) { def foo; end }
|
||||
assert_raise(NoMethodError) { Struct.new(:m1).new.foo }
|
||||
end
|
||||
|
||||
assert('Struct#[]', '15.2.18.4.2') do
|
||||
c = Struct.new(:m1, :m2)
|
||||
cc = c.new(1,2)
|
||||
assert_equal 1, cc[:m1]
|
||||
assert_equal 2, cc["m2"]
|
||||
assert_equal 1, cc[0]
|
||||
assert_equal 2, cc[-1]
|
||||
assert_raise(TypeError) { cc[[]] }
|
||||
assert_raise(IndexError) { cc[2] }
|
||||
assert_raise(NameError) { cc['tama'] }
|
||||
end
|
||||
|
||||
assert('Struct#[]=', '15.2.18.4.3') do
|
||||
c = Struct.new(:m1, :m2)
|
||||
cc = c.new(1,2)
|
||||
cc[:m1] = 3
|
||||
assert_equal 3, cc[:m1]
|
||||
cc["m2"] = 3
|
||||
assert_equal 3, cc["m2"]
|
||||
cc[0] = 4
|
||||
assert_equal 4, cc[0]
|
||||
cc[-1] = 5
|
||||
assert_equal 5, cc[-1]
|
||||
assert_raise(TypeError) { cc[[]] = 3 }
|
||||
assert_raise(IndexError) { cc[2] = 7 }
|
||||
assert_raise(NameError) { cc['pochi'] = 8 }
|
||||
end
|
||||
|
||||
assert('Struct#each', '15.2.18.4.4') do
|
||||
c = Struct.new(:m1, :m2)
|
||||
cc = c.new(1,2)
|
||||
a = []
|
||||
cc.each{|x|
|
||||
a << x
|
||||
}
|
||||
assert_equal [1, 2], a
|
||||
end
|
||||
|
||||
assert('Struct#each_pair', '15.2.18.4.5') do
|
||||
c = Struct.new(:m1, :m2)
|
||||
cc = c.new(1,2)
|
||||
a = []
|
||||
cc.each_pair{|k,v|
|
||||
a << [k,v]
|
||||
}
|
||||
assert_equal [[:m1, 1], [:m2, 2]], a
|
||||
end
|
||||
|
||||
assert('Struct#members', '15.2.18.4.6') do
|
||||
c = Struct.new(:m1, :m2)
|
||||
assert_equal [:m1, :m2], c.new(1,2).members
|
||||
end
|
||||
|
||||
assert('Struct#select', '15.2.18.4.7') do
|
||||
c = Struct.new(:m1, :m2)
|
||||
assert_equal([2]) { c.new(1,2).select{|v| v % 2 == 0} }
|
||||
end
|
||||
|
||||
assert('large struct') do
|
||||
c = Struct.new(:m1, :m2, :m3, :m4, :m5, :m6, :m7, :m8, :m9, :m10, :m11, :m12, :m13)
|
||||
cc = c.new(1,2,3,4,5,6,7,8,9,10,11,12,13)
|
||||
assert_equal 1, cc.m1
|
||||
assert_equal 2, cc.m2
|
||||
assert_equal 3, cc.m3
|
||||
assert_equal 4, cc.m4
|
||||
assert_equal 5, cc.m5
|
||||
assert_equal 6, cc.m6
|
||||
assert_equal 7, cc.m7
|
||||
assert_equal 8, cc.m8
|
||||
assert_equal 9, cc.m9
|
||||
assert_equal 10, cc.m10
|
||||
assert_equal 13, cc.m13
|
||||
|
||||
cc.m13 = 'test'
|
||||
assert_equal 'test', cc.m13
|
||||
|
||||
assert_raise(NoMethodError) { cc.m14 }
|
||||
end
|
||||
|
||||
assert('wrong struct arg count') do
|
||||
c = Struct.new(:m1)
|
||||
assert_raise ArgumentError do
|
||||
cc = c.new(1,2,3)
|
||||
end
|
||||
end
|
||||
|
||||
assert('struct dup') do
|
||||
c = Struct.new(:m1, :m2, :m3, :m4, :m5)
|
||||
cc = c.new(1,2,3,4,5)
|
||||
assert_nothing_raised {
|
||||
assert_equal(cc, cc.dup)
|
||||
}
|
||||
end
|
||||
|
||||
assert('struct inspect') do
|
||||
c = Struct.new(:m1, :m2, :m3, :m4, :m5, :recur)
|
||||
cc = c.new(1,2,3,4,5,nil)
|
||||
cc.recur = cc
|
||||
assert_equal "#<struct m1=1, m2=2, m3=3, m4=4, m5=5, recur=#<struct #{cc.class}:...>>", cc.inspect
|
||||
end
|
||||
|
||||
assert('Struct#length, Struct#size') do
|
||||
s = Struct.new(:f1, :f2).new(0, 1)
|
||||
assert_equal 2, s.size
|
||||
assert_equal 2, s.length
|
||||
end
|
||||
|
||||
assert('Struct#to_a, Struct#values') do
|
||||
s = Struct.new(:mem1, :mem2).new('a', 'b')
|
||||
assert_equal ['a', 'b'], s.to_a
|
||||
assert_equal ['a', 'b'], s.values
|
||||
end
|
||||
|
||||
assert('Struct#to_h') do
|
||||
s = Struct.new(:white, :red, :green).new('ruuko', 'yuzuki', 'hitoe')
|
||||
assert_equal(:white => 'ruuko', :red => 'yuzuki', :green => 'hitoe') { s.to_h }
|
||||
end
|
||||
|
||||
assert('Struct#values_at') do
|
||||
a = Struct.new(:blue, :purple).new('aki', 'io')
|
||||
assert_equal ['aki'], a.values_at(0)
|
||||
assert_equal ['io', 'aki'], a.values_at(1, 0)
|
||||
assert_raise(IndexError) { a.values_at 2 }
|
||||
end
|
||||
|
||||
assert("Struct#dig") do
|
||||
a = Struct.new(:blue, :purple).new('aki', Struct.new(:red).new(1))
|
||||
assert_equal 'aki', a.dig(:blue)
|
||||
assert_equal 1, a.dig(:purple, :red)
|
||||
assert_equal 1, a.dig(1, 0)
|
||||
end
|
||||
|
||||
# TODO: suppress redefining Struct warning during test
|
||||
# assert("Struct.new removes existing constant") do
|
||||
# begin
|
||||
# assert_not_equal Struct.new("Test", :a), Struct.new("Test", :a, :b)
|
||||
# ensure
|
||||
# Struct.remove_const :Test
|
||||
# end
|
||||
# end
|
||||
|
||||
assert("Struct#initialize_copy requires struct to be the same type") do
|
||||
begin
|
||||
Struct.new("Test", :a)
|
||||
a = Struct::Test.new("a")
|
||||
Struct.remove_const :Test
|
||||
Struct.new("Test", :a, :b)
|
||||
assert_raise(TypeError) do
|
||||
a.initialize_copy(Struct::Test.new("a", "b"))
|
||||
end
|
||||
ensure
|
||||
Struct.remove_const :Test
|
||||
end
|
||||
end
|
||||
|
||||
assert("Struct.new does not allow array") do
|
||||
assert_raise(TypeError) do
|
||||
Struct.new("Test", [:a])
|
||||
end
|
||||
end
|
||||
|
||||
assert("Struct.new does not allow invalid class name") do
|
||||
assert_raise(NameError) { Struct.new("Test-", :a) }
|
||||
end
|
||||
|
||||
assert("Struct.new generates subclass of Struct") do
|
||||
begin
|
||||
original_struct = Struct
|
||||
Struct = String
|
||||
assert_equal original_struct, original_struct.new(:foo).superclass
|
||||
ensure
|
||||
Struct = original_struct
|
||||
end
|
||||
end
|
||||
|
||||
assert 'Struct#freeze' do
|
||||
c = Struct.new :m
|
||||
|
||||
o = c.new
|
||||
o.m = :test
|
||||
assert_equal :test, o.m
|
||||
|
||||
o.freeze
|
||||
assert_raise(FrozenError) { o.m = :modify }
|
||||
assert_raise(FrozenError) { o[:m] = :modify }
|
||||
assert_equal :test, o.m
|
||||
end
|
||||
Reference in New Issue
Block a user