Function doParseDArrayFromString

postgres/parser/sem/tree/parse_array.go:185–228

doParseDArraryFromString does most of the work of ParseDArrayFromString, except the error it returns isn't prettified as a parsing error. The dependsOnContext return value indicates if we had to consult the ParseTimeContext (either for the time or the local timezone).

(
	ctx ParseTimeContext, s string, t *types.T,
)

// The dependsOnContext return value indicates if we had to consult the
// ParseTimeContext (either for the time or the local timezone).
func doParseDArrayFromString(
	ctx ParseTimeContext, s string, t *types.T,
) (_ *DArray, dependsOnContext bool, _ error) {
	parser := parseState{
		s:      s,
		ctx:    ctx,
		result: NewDArray(t),
		t:      t,
	}

	parser.eatWhitespace()
	if parser.peek() != '{' {
		return nil, false, enclosingError
	}
	parser.advance()
	parser.eatWhitespace()
	if parser.peek() != '}' {
		if err := parser.parseElement(); err != nil {
			return nil, false, err
		}
		parser.eatWhitespace()
		for parser.peek() == ',' {
			parser.advance()
			parser.eatWhitespace()
			if err := parser.parseElement(); err != nil {
				return nil, false, err
			}
		}
	}
	parser.eatWhitespace()
	if parser.eof() {
		return nil, false, enclosingError
	}
	if parser.peek() != '}' {
		return nil, false, malformedError
	}
	parser.advance()
	parser.eatWhitespace()
	if !parser.eof() {
		return nil, false, extraTextError
	}

	return parser.result, parser.dependsOnContext, nil
}