Class WalkResult

• Defined in File structural_visit.h

Inheritance Relationships

Base Type

• public tvm::ffi::Variant< VisitInterrupt, int32_t > (Template Class Variant)

Class Documentation

class WalkResult : public tvm::ffi::Variant<VisitInterrupt, int32_t>

Per-node control signal returned by structural walk callbacks.

Walk control result with one of three actions:

• WalkResult::Advance(): continue traversal, including this node’s children.

• WalkResult::Skip(): continue traversal but skip this node’s children.

• WalkResult::Interrupt(): halt the entire walk, optionally carrying a payload.

Public Types

using Storage = Variant<VisitInterrupt, int32_t>

The underlying Variant used as storage.

Public Static Functions

static inline WalkResult Advance()

Continue traversal and visit this node’s children.

static inline WalkResult Skip()

Continue traversal but skip this node’s children.

static inline WalkResult Interrupt(VisitInterrupt signal = VisitInterrupt())

Halt the walk and propagate an interrupt.

Parameters:

signal – The interrupt to propagate. Defaults to an interrupt with FFI None payload.

Public Static Attributes

static constexpr int32_t kAdvanceTag = 0

Internal tag value carried by WalkResult::Advance().

static constexpr int32_t kSkipTag = 1

Internal tag value carried by WalkResult::Skip().