Function FormatAST

pkg/formatter/render.go:81–120

─── public rendering API ──────────────────────────────────────────────────── FormatAST renders a full *ast.AST with the given options.

(a *ast.AST, opts ast.FormatOptions)

// FormatAST renders a full *ast.AST with the given options.
func FormatAST(a *ast.AST, opts ast.FormatOptions) string {
	if a == nil {
		return ""
	}
	parts := make([]string, 0, len(a.Statements))
	for _, stmt := range a.Statements {
		parts = append(parts, FormatStatement(stmt, opts))
	}
	sep := ";\n"
	if opts.AddSemicolon {
		// Each statement already ends with ";"
		sep = "\n"
	}
	result := strings.Join(parts, sep)

	// Emit preserved comments
	if len(a.Comments) > 0 {
		var leading, trailing []string
		for _, c := range a.Comments {
			if c.Inline {
				trailing = append(trailing, c.Text)
			} else {
				leading = append(leading, c.Text)
			}
		}
		var sb strings.Builder
		for _, lc := range leading {
			sb.WriteString(lc)
			sb.WriteString("\n")
		}
		sb.WriteString(result)
		for _, tc := range trailing {
			sb.WriteString(" ")
			sb.WriteString(tc)
		}
		result = sb.String()
	}

	return result
}

// FormatStatement renders a single AST statement with the given options.
// Returns "" for nil.