build: separate compiler and libs

compiler/cl/blocks/block_test.go

@@ -0,0 +1,144 @@
+/*
+ * Copyright (c) 2024 The GoPlus Authors (goplus.org). All rights reserved.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package blocks
+
+import (
+	"bytes"
+	"fmt"
+	"go/ast"
+	"go/parser"
+	"go/token"
+	"go/types"
+	"log"
+	"os"
+	"path"
+	"strings"
+	"testing"
+
+	"github.com/goplus/gogen/packages"
+	"golang.org/x/tools/go/ssa"
+	"golang.org/x/tools/go/ssa/ssautil"
+
+	llssa "github.com/goplus/llgo/compiler/ssa"
+)
+
+func TestTestdefer(t *testing.T) {
+	fromDir(t, "", "../_testdefer", func(name string) string {
+		if strings.HasPrefix(name, "firstloop") {
+			return "Loop"
+		}
+		return "main"
+	})
+}
+
+func TestFirstLoop(t *testing.T) {
+	blk := &ssa.BasicBlock{}
+	blk.Index = 0
+	blk.Preds = []*ssa.BasicBlock{blk}
+	blk.Succs = []*ssa.BasicBlock{blk}
+	infos := Infos([]*ssa.BasicBlock{blk})
+	if infos[0].Kind != llssa.DeferInLoop {
+		t.Fatal("TestFirstLoop")
+	}
+}
+
+func fromDir(t *testing.T, sel, relDir string, fn func(string) string) {
+	dir, err := os.Getwd()
+	if err != nil {
+		t.Fatal("Getwd failed:", err)
+	}
+	dir = path.Join(dir, relDir)
+	fis, err := os.ReadDir(dir)
+	if err != nil {
+		t.Fatal("ReadDir failed:", err)
+	}
+	for _, fi := range fis {
+		name := fi.Name()
+		if !fi.IsDir() || strings.HasPrefix(name, "_") {
+			continue
+		}
+		t.Run(name, func(t *testing.T) {
+			testFrom(t, dir+"/"+name, sel, fn(name))
+		})
+	}
+}
+
+func testFrom(t *testing.T, pkgDir, sel, fn string) {
+	if sel != "" && !strings.Contains(pkgDir, sel) {
+		return
+	}
+	log.Println("Parsing", pkgDir)
+	in := pkgDir + "/in.go"
+	out := pkgDir + "/out.txt"
+	b, err := os.ReadFile(out)
+	if err != nil {
+		t.Fatal("ReadFile failed:", err)
+	}
+	expected := string(b)
+	testBlockInfo(t, nil, in, expected, fn)
+}
+
+func testBlockInfo(t *testing.T, src any, fname, expected, fn string) {
+	t.Helper()
+	fset := token.NewFileSet()
+	f, err := parser.ParseFile(fset, fname, src, parser.ParseComments)
+	if err != nil {
+		t.Fatal("ParseFile failed:", err)
+	}
+	files := []*ast.File{f}
+	name := f.Name.Name
+	pkg := types.NewPackage(name, name)
+	imp := packages.NewImporter(fset)
+	foo, _, err := ssautil.BuildPackage(
+		&types.Config{Importer: imp}, fset, pkg, files, ssa.SanityCheckFunctions|ssa.InstantiateGenerics|ssa.GlobalDebug)
+	if err != nil {
+		t.Fatal("BuildPackage failed:", err)
+	}
+	foo.WriteTo(os.Stderr)
+
+	for _, member := range foo.Members {
+		switch f := member.(type) {
+		case *ssa.Function:
+			if f.Name() == fn {
+				f.WriteTo(os.Stderr)
+				infos := Infos(f.Blocks)
+				if v := resultOf(infos); v != expected {
+					t.Fatalf("\n==> got:\n%s\n==> expected:\n%s\n", v, expected)
+				}
+				return
+			}
+		}
+	}
+}
+
+func resultOf(infos []Info) string {
+	var b bytes.Buffer
+	i := 0
+	for {
+		fmt.Fprintf(&b, "%2d: %s\n", i, kinds[infos[i].Kind])
+		if i = infos[i].Next; i < 0 {
+			break
+		}
+	}
+	return b.String()
+}
+
+var kinds = [...]string{
+	llssa.DeferAlways: "always",
+	llssa.DeferInCond: "cond",
+	llssa.DeferInLoop: "loop",
+}