clang: Basic CompleteSourceLocation intent handler

clang/clang.go

@@ -70,8 +70,10 @@ func parseresult(in string) (ret content.CompletionResult, err error) {
 	return
 }
 
-func CompleteAt(loc content.SourceLocation) (ret content.CompletionResult, err error) {
-	if out, err := RunClang("-fsyntax-only", "-Xclang", fmt.Sprintf("-code-completion-at=%s:%d:%d", loc.File.Name, loc.Line, loc.Column), loc.File.Name); err != nil {
+func CompleteAt(args []string, loc content.SourceLocation) (ret content.CompletionResult, err error) {
+	args = append([]string{"-fsyntax-only", "-Xclang", fmt.Sprintf("-code-completion-at=%s:%d:%d", loc.File.Name, loc.Line, loc.Column)}, args...)
+	args = append(args, loc.File.Name)
+	if out, err := RunClang(args...); err != nil {
 		return ret, err
 	} else {
 		return parseresult(string(out))

clang/clang_test.go

@@ -20,7 +20,7 @@ func TestClang(t *testing.T) {
 	loc.Column = 1
 	loc.Line = 10
 	loc.File.Name = "testdata/hello.cpp"
-	t.Log(CompleteAt(loc))
+	t.Log(CompleteAt([]string{}, loc))
 }
 
 func TestParseResult(t *testing.T) {

clang/complete_intent.go

@@ -0,0 +1,33 @@
+package clang
+
+import (
+	"github.com/quarnster/completion/content"
+	"regexp"
+)
+
+var extre = regexp.MustCompile(`\.(h|hpp|c|cc|cpp|m|mm)$`)
+
+type CompletionHandler struct {
+}
+
+func (c *CompletionHandler) Handle(it *content.Intent) *content.Response {
+	loc := it.Data.Get("loc").(content.SourceLocation)
+	args, _ := it.Settings().Get("compiler_flags").([]string)
+	if cmp, err := CompleteAt(args, loc); err != nil {
+		return content.NewErrorResponse(err.Error())
+	} else {
+		r := content.NewResponse()
+		r.Data.Set("completions", cmp)
+		return &r
+	}
+}
+
+func (c *CompletionHandler) CanHandle(it *content.Intent) bool {
+	if it.Operation != content.CompleteSourceLocation {
+		return false
+	} else if loc, ok := it.Data.Get("loc").(content.SourceLocation); !ok {
+		return false
+	} else {
+		return extre.MatchString(loc.File.Name)
+	}
+}