Method Current

hclwrite/ast_block.go:139–180

()

}

func (bl *blockLabels) Current() []string {
	labelNames := make([]string, 0, len(bl.items))
	list := bl.items.List()

	for _, label := range list {
		switch labelObj := label.content.(type) {
		case *identifier:
			if labelObj.token.Type == hclsyntax.TokenIdent {
				labelString := string(labelObj.token.Bytes)
				labelNames = append(labelNames, labelString)
			}

		case *quoted:
			tokens := labelObj.tokens
			if len(tokens) == 3 &&
				tokens[0].Type == hclsyntax.TokenOQuote &&
				tokens[1].Type == hclsyntax.TokenQuotedLit &&
				tokens[2].Type == hclsyntax.TokenCQuote {
				// Note that TokenQuotedLit may contain escape sequences.
				labelString, diags := hclsyntax.ParseStringLiteralToken(tokens[1].asHCLSyntax())

				// If parsing the string literal returns error diagnostics
				// then we can just assume the label doesn't match, because it's invalid in some way.
				if !diags.HasErrors() {
					labelNames = append(labelNames, labelString)
				}
			} else if len(tokens) == 2 &&
				tokens[0].Type == hclsyntax.TokenOQuote &&
				tokens[1].Type == hclsyntax.TokenCQuote {
				// An open quote followed immediately by a closing quote is a
				// valid but unusual blank string label.
				labelNames = append(labelNames, "")
			}

		default:
			// If neither of the previous cases are true (should be impossible)
			// then we can just ignore it, because it's invalid too.
		}
	}

	return labelNames
}