Function translateUsingLineDirectives

pkg/lsp/translator.go:480–514

translateUsingLineDirectives translates a Go line to Dingo line using //line directives Returns (dingoLine, found) where found indicates if a directive-based translation was used

(goPath string, goLine int)

// translateUsingLineDirectives translates a Go line to Dingo line using //line directives
// Returns (dingoLine, found) where found indicates if a directive-based translation was used
func translateUsingLineDirectives(goPath string, goLine int) (int, bool) {
	entries, err := parseLineDirectives(goPath)
	if err != nil || len(entries) == 0 {
		return goLine, false
	}

	// Find the last directive that affects this line
	// //line directives affect the NEXT line, so we look for directive at goLine-1 or earlier
	var activeEntry *lineDirectiveEntry
	for i := range entries {
		if entries[i].goLine < goLine {
			activeEntry = &entries[i]
		} else {
			break
		}
	}

	if activeEntry == nil {
		return goLine, false
	}

	// Calculate Dingo line:
	// If directive is at Go line D and sets Dingo line to L,
	// then Go line D+1 → Dingo line L
	// So Go line G → Dingo line L + (G - D - 1)
	dingoLine := activeEntry.dingoLine + (goLine - activeEntry.goLine - 1)
	if dingoLine < 1 {
		dingoLine = 1
	}

	log.Printf("[LSP Translator] LineDirective: Go line %d → Dingo line %d (directive at Go line %d sets Dingo line %d)",
		goLine, dingoLine, activeEntry.goLine, activeEntry.dingoLine)

	return dingoLine, true
}