Method ParseContext

pkg/sql/parser/parser.go:434–442

ParseContext parses tokens into an AST with context support for cancellation and timeouts. This method enables graceful cancellation of long-running parsing operations by checking the context at strategic points (statement boundaries and expression starts). The parser checks context.Err() approxima

(ctx context.Context, tokens []token.Token)

// ParseContext parses a slice of token.Token with context support (backward compat shim).
// For new code prefer ParseContextFromModelTokens.
func (p *Parser) ParseContext(ctx context.Context, tokens []token.Token) (*ast.AST, error) {
	// Wrap legacy token.Token into models.TokenWithSpan.
	wrapped := make([]models.TokenWithSpan, len(tokens))
	for i, t := range tokens {
		wrapped[i] = models.WrapToken(models.Token{Type: t.Type, Value: t.Literal})
	}
	preprocessed := preprocessTokens(wrapped)
	return p.parseContextTokens(ctx, preprocessed)
}

// parseContextTokens is the core context-aware parsing routine. It takes
// a preprocessed []models.TokenWithSpan and respects ctx for cancellation.