Struct ExprBuilder

struct ExprBuilder<R> {
    error_report: Option<R>,
}

Build an expression from protobuf with possibly some wrappers attached to each node.

Fields

error_report: Option<R>

The error reporting for non-strict mode.

If set, each expression node will be wrapped with a NonStrict node that reports errors to this error reporting.

Implementations

impl ExprBuilder<!>

fn new_strict() -> Self

Create a new builder in strict mode.

impl<R> ExprBuilder<R>

where R: EvalErrorReport + 'static,

fn new_non_strict(error_report: R) -> Self

Create a new builder in non-strict mode with the given error reporting.

fn wrap(&self, expr: impl Expression + 'static) -> BoxedExpression

Attach wrappers to an expression.

fn build(&self, prost: &ExprNode) -> Result<BoxedExpression>

Build an expression with build_inner and attach some wrappers.

fn build_inner(&self, prost: &ExprNode) -> Result<BoxedExpression>

Build an expression from protobuf.