From 5e527213a2430bb3018e5eebd909aef294edf9b5 Mon Sep 17 00:00:00 2001
From: Karen Arutyunov <karen@codesynthesis.com>
Date: Fri, 18 Dec 2020 18:48:46 +0300
Subject: Switch to build2

---
 xsd-examples/cxx/parser/mixin/README       |  34 ++++++++++
 xsd-examples/cxx/parser/mixin/buildfile    |  25 +++++++
 xsd-examples/cxx/parser/mixin/driver.cxx   | 103 +++++++++++++++++++++++++++++
 xsd-examples/cxx/parser/mixin/instance.xml |  16 +++++
 xsd-examples/cxx/parser/mixin/schema.map   |   7 ++
 xsd-examples/cxx/parser/mixin/schema.xsd   |  30 +++++++++
 xsd-examples/cxx/parser/mixin/types.hxx    |  43 ++++++++++++
 7 files changed, 258 insertions(+)
 create mode 100644 xsd-examples/cxx/parser/mixin/README
 create mode 100644 xsd-examples/cxx/parser/mixin/buildfile
 create mode 100644 xsd-examples/cxx/parser/mixin/driver.cxx
 create mode 100644 xsd-examples/cxx/parser/mixin/instance.xml
 create mode 100644 xsd-examples/cxx/parser/mixin/schema.map
 create mode 100644 xsd-examples/cxx/parser/mixin/schema.xsd
 create mode 100644 xsd-examples/cxx/parser/mixin/types.hxx

(limited to 'xsd-examples/cxx/parser/mixin')

diff --git a/xsd-examples/cxx/parser/mixin/README b/xsd-examples/cxx/parser/mixin/README
new file mode 100644
index 0000000..343e379
--- /dev/null
+++ b/xsd-examples/cxx/parser/mixin/README
@@ -0,0 +1,34 @@
+This example shows how to reuse implementations of base parsers
+in derived parsers using the mixin C++ idiom.
+
+The example consists of the following files:
+
+schema.xsd
+  XML Schema which defined two data types: base and
+  derived.
+
+instance.xml
+  Sample XML instance document.
+
+types.hxx
+  C++ classes that correspond to the base and derived
+  types in schema.xsd.
+
+schema.map
+  Type map. It maps XML Schema types defined in schema.xsd
+  to C++ types defined in types.hxx.
+
+schema-pskel.hxx
+schema-pskel.cxx
+  Parser skeletons generated by XSD from schema.xsd and
+  schema.map.
+
+driver.cxx
+  Parser implementations and a driver for the example. It
+  shows how to mix the implementation of the base parser
+  into the derived parser.
+
+To run the example on the sample XML instance document simply
+execute:
+
+$ ./driver instance.xml
diff --git a/xsd-examples/cxx/parser/mixin/buildfile b/xsd-examples/cxx/parser/mixin/buildfile
new file mode 100644
index 0000000..4d4d751
--- /dev/null
+++ b/xsd-examples/cxx/parser/mixin/buildfile
@@ -0,0 +1,25 @@
+# file      : cxx/parser/mixin/buildfile
+# license   : not copyrighted - public domain
+
+import libs  = libxsd%lib{xsd}
+import libs += libxerces-c%lib{xerces-c}
+
+./: exe{driver} doc{README}
+
+exe{driver}: {hxx cxx}{* -schema-pskel} {hxx ixx cxx}{schema-pskel} $libs
+
+exe{driver}: xml{instance}: test.input = true
+
+<{hxx ixx cxx}{schema-pskel}>: xsd{schema} map{schema} $xsd
+{{
+  diag xsd ($<[0]) # @@ TMP
+
+  $xsd cxx-parser --std c++11    \
+       --generate-inline         \
+       --skel-file-suffix -pskel \
+       --type-map $path($<[1])   \
+       --output-dir $out_base    \
+       $path($<[0])
+}}
+
+cxx.poptions =+ "-I$out_base" "-I$src_base"
diff --git a/xsd-examples/cxx/parser/mixin/driver.cxx b/xsd-examples/cxx/parser/mixin/driver.cxx
new file mode 100644
index 0000000..7a5ac94
--- /dev/null
+++ b/xsd-examples/cxx/parser/mixin/driver.cxx
@@ -0,0 +1,103 @@
+// file      : cxx/parser/mixin/driver.cxx
+// copyright : not copyrighted - public domain
+
+#include <memory>
+#include <iostream>
+
+#include "types.hxx"
+#include "schema-pskel.hxx"
+
+using namespace std;
+
+struct base_pimpl: virtual base_pskel
+{
+  virtual void
+  pre ()
+  {
+    base_.reset (new ::base);
+  }
+
+  virtual void
+  a (bool v)
+  {
+    base_->a (v);
+  }
+
+  virtual base*
+  post_base ()
+  {
+    return base_.release ();
+  }
+
+protected:
+  unique_ptr<base> base_;
+};
+
+// Implement derived parser by mixing-in base's implementation.
+//
+struct derived_pimpl: derived_pskel, base_pimpl
+{
+  virtual void
+  pre ()
+  {
+    // Override base's pre() with the new implementation that
+    // instantiates derived instead of base.
+    //
+    base_.reset (new ::derived);
+  }
+
+  virtual void
+  b (int v)
+  {
+    // We could also store a pointer to derived in derived_impl to
+    // avoid casting.
+    //
+    static_cast< ::derived* > (base_.get ())->b (v);
+  }
+
+  virtual derived*
+  post_derived ()
+  {
+    return static_cast<derived*> (base_.release ());
+  }
+};
+
+int
+main (int argc, char* argv[])
+{
+  if (argc != 2)
+  {
+    cerr << "usage: " << argv[0] << " instance.xml" << endl;
+    return 1;
+  }
+
+  try
+  {
+    // Construct the parser.
+    //
+    xml_schema::boolean_pimpl bool_p;
+    xml_schema::int_pimpl int_p;
+    derived_pimpl derived_p;
+
+    derived_p.parsers (bool_p, int_p);
+
+    xml_schema::document doc_p (derived_p, "root");
+
+    derived_p.pre ();
+    doc_p.parse (argv[1]);
+    unique_ptr<derived> d (derived_p.post_derived ());
+
+    cerr << "a: " << boolalpha << d->a () << endl;
+    cerr << "b: " << d->b () << endl;
+  }
+  catch (const xml_schema::exception& e)
+  {
+    cerr << e << endl;
+    return 1;
+  }
+  catch (const std::ios_base::failure&)
+  {
+    cerr << argv[1] << ": unable to open or read failure" << endl;
+    return 1;
+  }
+}
diff --git a/xsd-examples/cxx/parser/mixin/instance.xml b/xsd-examples/cxx/parser/mixin/instance.xml
new file mode 100644
index 0000000..90e2757
--- /dev/null
+++ b/xsd-examples/cxx/parser/mixin/instance.xml
@@ -0,0 +1,16 @@
+<?xml version="1.0"?>
+
+<!--
+
+file      : cxx/parser/mixin/instance.xml
+copyright : not copyrighted - public domain
+
+-->
+
+<root xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+      xsi:noNamespaceSchemaLocation="schema.xsd">
+
+  <a>true</a>
+  <b>1</b>
+
+</root>
diff --git a/xsd-examples/cxx/parser/mixin/schema.map b/xsd-examples/cxx/parser/mixin/schema.map
new file mode 100644
index 0000000..a6ffa76
--- /dev/null
+++ b/xsd-examples/cxx/parser/mixin/schema.map
@@ -0,0 +1,7 @@
+# file      : cxx/parser/mixin/schema.map
+# copyright : not copyrighted - public domain
+
+include "types.hxx";
+
+base ::base*;
+derived ::derived*;
diff --git a/xsd-examples/cxx/parser/mixin/schema.xsd b/xsd-examples/cxx/parser/mixin/schema.xsd
new file mode 100644
index 0000000..891241e
--- /dev/null
+++ b/xsd-examples/cxx/parser/mixin/schema.xsd
@@ -0,0 +1,30 @@
+<?xml version="1.0"?>
+
+<!--
+
+file      : cxx/parser/mixin/schema.xsd
+copyright : not copyrighted - public domain
+
+-->
+
+<xsd:schema xmlns:xsd="http://www.w3.org/2001/XMLSchema">
+
+  <xsd:complexType name="base">
+    <xsd:sequence>
+      <xsd:element name="a" type="xsd:boolean"/>
+    </xsd:sequence>
+  </xsd:complexType>
+
+  <xsd:complexType name="derived">
+    <xsd:complexContent>
+      <xsd:extension base="base">
+        <xsd:sequence>
+          <xsd:element name="b" type="xsd:int"/>
+        </xsd:sequence>
+      </xsd:extension>
+    </xsd:complexContent>
+  </xsd:complexType>
+
+  <xsd:element name="root" type="derived"/>
+
+</xsd:schema>
diff --git a/xsd-examples/cxx/parser/mixin/types.hxx b/xsd-examples/cxx/parser/mixin/types.hxx
new file mode 100644
index 0000000..887b29e
--- /dev/null
+++ b/xsd-examples/cxx/parser/mixin/types.hxx
@@ -0,0 +1,43 @@
+// file      : cxx/parser/mixin/types.hxx
+// copyright : not copyrighted - public domain
+
+#ifndef TYPES_HXX
+#define TYPES_HXX
+
+struct base
+{
+  bool
+  a () const
+  {
+    return a_;
+  }
+
+  void
+  a (bool v)
+  {
+    a_ = v;
+  }
+
+private:
+  bool a_;
+};
+
+struct derived: base
+{
+  int
+  b () const
+  {
+    return b_;
+  }
+
+  void
+  b (int v)
+  {
+    b_ = v;
+  }
+
+private:
+  int b_;
+};
+
+#endif // TYPES_HXX
-- 
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