a11::flow::EvalContext Struct Reference

What an expression is evaluated against. More...

#include <cpp/a11/flow/values.h>

Public Member Functions
CoerceContext	Coercion () const

Public Attributes
const absl::flat_hash_map< const syntax::Node *, Value > *absl_nullable	bound
Value	it
	The value a where/map/group stage is looking at.
bool	has_it = false
HostBridge *absl_nullable	bridge = nullptr
const Program *absl_nullable	shapes = nullptr
	The shapes the program declared, for a cast written inside an expression.

Detailed Description

What an expression is evaluated against.

bound is the first value of each stream the expression mentions, keyed by the syntax node that mentioned it. Keying on the node rather than rewriting the tree is what lets the AST stay immutable and shared: the Python reference replaced each resolved name with a RefValue node, which a tree handed across a language boundary cannot do.

Member Function Documentation

Coercion()

CoerceContext a11::flow::EvalContext::Coercion ( ) const

inline

Member Data Documentation

bound

const absl::flat_hash_map<const syntax::Node*, Value>* absl_nullable a11::flow::EvalContext::bound

Initial value:

=
      nullptr

bridge

HostBridge* absl_nullable a11::flow::EvalContext::bridge = nullptr

has_it

bool a11::flow::EvalContext::has_it = false

it

Value a11::flow::EvalContext::it

The value a where/map/group stage is looking at.

shapes

const Program* absl_nullable a11::flow::EvalContext::shapes = nullptr

The shapes the program declared, for a cast written inside an expression.

---

The documentation for this struct was generated from the following file:

• cpp/a11/flow/values.h