vendor tsgo

tools/tsgo/internal/execute/tsctests/fs.go

@@ -0,0 +1,90 @@
+package tsctests
+
+import (
+	"fmt"
+
+	"github.com/microsoft/typescript-go/internal/collections"
+	"github.com/microsoft/typescript-go/internal/core"
+	"github.com/microsoft/typescript-go/internal/execute/incremental"
+	"github.com/microsoft/typescript-go/internal/json"
+	"github.com/microsoft/typescript-go/internal/testutil/fsbaselineutil"
+	"github.com/microsoft/typescript-go/internal/testutil/harnessutil"
+	"github.com/microsoft/typescript-go/internal/tspath"
+	"github.com/microsoft/typescript-go/internal/vfs"
+)
+
+type testFs struct {
+	vfs.FS
+	defaultLibs  *collections.SyncSet[string]
+	writtenFiles collections.SyncSet[string]
+}
+
+func (f *testFs) removeIgnoreLibPath(path string) {
+	if f.defaultLibs != nil && f.defaultLibs.Has(path) {
+		f.defaultLibs.Delete(path)
+	}
+}
+
+// ReadFile reads the file specified by path and returns the content.
+// If the file fails to be read, ok will be false.
+func (f *testFs) ReadFile(path string) (contents string, ok bool) {
+	f.removeIgnoreLibPath(path)
+	return f.readFileHandlingBuildInfo(path)
+}
+
+func (f *testFs) readFileHandlingBuildInfo(path string) (contents string, ok bool) {
+	contents, ok = f.FS.ReadFile(path)
+	if ok && tspath.FileExtensionIs(path, tspath.ExtensionTsBuildInfo) {
+		// read buildinfo and modify version
+		var buildInfo incremental.BuildInfo
+		err := json.Unmarshal([]byte(contents), &buildInfo)
+		if err == nil && buildInfo.Version == harnessutil.FakeTSVersion {
+			buildInfo.Version = core.Version()
+			newContents, err := json.Marshal(&buildInfo)
+			if err != nil {
+				panic("testFs.ReadFile: failed to marshal build info after fixing version: " + err.Error())
+			}
+			contents = string(newContents)
+		}
+	}
+	return contents, ok
+}
+
+func (f *testFs) WriteFile(path string, data string) error {
+	f.removeIgnoreLibPath(path)
+	f.writtenFiles.Add(path)
+	return f.writeFileHandlingBuildInfo(path, data)
+}
+
+func (f *testFs) writeFileHandlingBuildInfo(path string, data string) error {
+	if tspath.FileExtensionIs(path, tspath.ExtensionTsBuildInfo) {
+		var buildInfo incremental.BuildInfo
+		if err := json.Unmarshal([]byte(data), &buildInfo); err == nil {
+			if buildInfo.Version == core.Version() {
+				// Change it to harnessutil.FakeTSVersion
+				buildInfo.Version = harnessutil.FakeTSVersion
+				newData, err := json.Marshal(&buildInfo)
+				if err != nil {
+					return fmt.Errorf("testFs.WriteFile: failed to marshal build info after fixing version: %w", err)
+				}
+				data = string(newData)
+			}
+			// Write readable build info version
+			if err := f.WriteFile(
+				path+".readable.baseline.txt",
+				toReadableBuildInfo(&buildInfo, fsbaselineutil.SanitizeInternalSymbolName(data)),
+			); err != nil {
+				return fmt.Errorf("testFs.WriteFile: failed to write readable build info: %w", err)
+			}
+		} else {
+			panic("testFs.WriteFile: failed to unmarshal build info: - use underlying FS's write method if this is intended use for testcase" + err.Error())
+		}
+	}
+	return f.FS.WriteFile(path, data)
+}
+
+// Removes `path` and all its contents. Will return the first error it encounters.
+func (f *testFs) Remove(path string) error {
+	f.removeIgnoreLibPath(path)
+	return f.FS.Remove(path)
+}