Add Go frontend, libgo library, and Go testsuite.

gcc/:
	* gcc.c (default_compilers): Add entry for ".go".
	* common.opt: Add -static-libgo as a driver option.
	* doc/install.texi (Configuration): Mention libgo as an option for
	--enable-shared.  Mention go as an option for --enable-languages.
	* doc/invoke.texi (Overall Options): Mention .go as a file name
	suffix.  Mention go as a -x option.
	* doc/frontends.texi (G++ and GCC): Mention Go as a supported
	language.
	* doc/sourcebuild.texi (Top Level): Mention libgo.
	* doc/standards.texi (Standards): Add section on Go language.
	Move references for other languages into their own section.
	* doc/contrib.texi (Contributors): Mention that I contributed the
	Go frontend.
gcc/testsuite/:
	* lib/go.exp: New file.
	* lib/go-dg.exp: New file.
	* lib/go-torture.exp: New file.
	* lib/target-supports.exp (check_compile): Match // Go.

From-SVN: r167407

1 files changed, 73 insertions, 0 deletions

diff --git a/libgo/go/ebnf/ebnf_test.go b/libgo/go/ebnf/ebnf_test.go
new file mode 100644
index 00000000000..a88d19bed8f
--- /dev/null
+++ b/libgo/go/ebnf/ebnf_test.go
@@ -0,0 +1,73 @@
+// Copyright 2009 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package ebnf
+
+import (
+	"io/ioutil"
+	"testing"
+)
+
+
+var grammars = []string{
+	`Program = .
+	`,
+
+	`Program = foo .
+	foo = "foo" .
+	`,
+
+	`Program = "a" | "b" "c" .
+	`,
+
+	`Program = "a" ... "z" .
+	`,
+
+	`Program = Song .
+	 Song = { Note } .
+	 Note = Do | (Re | Mi | Fa | So | La) | Ti .
+	 Do = "c" .
+	 Re = "d" .
+	 Mi = "e" .
+	 Fa = "f" .
+	 So = "g" .
+	 La = "a" .
+	 Ti = ti .
+	 ti = "b" .
+	`,
+}
+
+
+func check(t *testing.T, filename string, src []byte) {
+	grammar, err := Parse(filename, src)
+	if err != nil {
+		t.Errorf("Parse(%s) failed: %v", src, err)
+	}
+	if err = Verify(grammar, "Program"); err != nil {
+		t.Errorf("Verify(%s) failed: %v", src, err)
+	}
+}
+
+
+func TestGrammars(t *testing.T) {
+	for _, src := range grammars {
+		check(t, "", []byte(src))
+	}
+}
+
+
+var files = []string{
+// TODO(gri) add some test files
+}
+
+
+func TestFiles(t *testing.T) {
+	for _, filename := range files {
+		src, err := ioutil.ReadFile(filename)
+		if err != nil {
+			t.Fatal(err)
+		}
+		check(t, filename, src)
+	}
+}