Module rustc_middle::mir

MIR datatypes and passes. See the rustc dev guide for more info.

Re-exports

pub use terminator::*;

Modules

abstract_const	A subset of a mir body used for const evaluatability checking.
binding_form_impl
coverage	Metadata from source code coverage analysis and instrumentation.
graph_cyclic_cache
interpret	An interpreter for MIR used in CTFE and by miri.
mono
predecessors	Lazily compute the reverse control-flow graph for the MIR.
query	Values computed by queries that use MIR.
tcx	Methods for the various MIR types. These are intended for use after building is complete.
terminator
traversal
type_foldable	TypeFoldable implementations for MIR types
visit	The MIR Visitor

Structs

BasicBlock	A node in the MIR control-flow graph.
BasicBlockData	See BasicBlock for documentation on what basic blocks are at a high level.
BlockTailInfo	BlockTailInfo is attached to the LocalDecl for temporaries created during evaluation of expressions in a block tail expression; that is, a block like { STMT_1; STMT_2; EXPR }.
Body	The lowered representation of a single function.
BorrowCheckResult
ClosureOutlivesRequirement	Indicates an outlives-constraint between a type or between two free regions declared on the closure.
ClosureRegionRequirements	After we borrow check a closure, we are left with various requirements that we have inferred between the free regions that appear in the closure’s signature or on its field types. These requirements are then verified and proved by the closure’s creating function. This struct encodes those requirements.
ConstQualifs	The result of the mir_const_qualif query.
Constant	Constants
CopyNonOverlapping
Coverage
CoverageInfo	Coverage information summarized from a MIR if instrumented for source code coverage (see compiler option -Zinstrument-coverage). This information is generated by the InstrumentCoverage MIR pass and can be retrieved via the coverageinfo query.
DestructuredConst	The constituent parts of an ADT or array.
Field
GeneratorInfo
GeneratorLayout	The layout of generator state.
GeneratorSavedLocal
LlvmInlineAsm
Local
LocalDecl	A MIR local.
Location	Location represents the position of the start of the statement; or, if statement_index equals the number of statements, then the start of the terminator.
MirSource	Where a specific mir::Body comes from.
Place	A path to a value; something that can be evaluated without changing or disturbing program state.
PlaceRef
Promoted
SourceInfo	Grouped information about the source code origin of a MIR entity. Intended to be inspected by diagnostics and debuginfo. Most passes can work with it as a whole, within a single function.
SourceScope
SourceScopeData
SourceScopeLocalData
Statement
UnsafetyCheckResult
UnsafetyViolation
UserTypeProjection	Encodes the effect of a user-supplied type annotation on the subcomponents of a pattern. The effect is determined by applying the given list of proejctions to some underlying base type. Often, the projection element list projs is empty, in which case this directly encodes a type in base. But in the case of complex patterns with subpatterns and bindings, we want to apply only a part of the type to a variable, in which case the projs vector is used.
UserTypeProjections	A collection of projections into user types.
VarBindingForm
VarDebugInfo	Debug information pertaining to a user variable.

Enums

AggregateKind
AssertKind	Information about an assertion failure.
BinOp
BindingForm
BorrowKind
CastKind
ClearCrossCrate
ClosureOutlivesSubject	The subject of a ClosureOutlivesRequirement – that is, the thing that must outlive some region.
ConstantKind
ConstraintCategory	Outlives-constraints can be categorized to determine whether and why they are interesting (for error reporting). Order of variants indicates sort order of the category, thereby influencing diagnostic output.
FakeReadCause	The FakeReadCause describes the type of pattern why a FakeRead statement exists.
ImplicitSelfKind	Represents what type of implicit self a function has, if any.
InlineAsmOperand
LocalInfo	Extra information about a some locals that’s used for diagnostics and for classifying variables into local variables, statics, etc, which is needed e.g. for unsafety checking.
LocalKind	Classifies locals into categories. See Body::local_kind.
MirPhase	The various “big phases” that MIR goes through.
Mutability
NullOp
Operand	These are values that can appear inside an rvalue. They are intentionally limited to prevent rvalues from being nested in one another.
ProjectionElem
RetagKind	Describes what kind of retag is to be performed.
ReturnConstraint
Rvalue	Rvalues
Safety
StatementKind
UnOp
UnsafetyViolationDetails
UnsafetyViolationKind
VarDebugInfoContents

Constants

OUTERMOST_SOURCE_SCOPE
RETURN_PLACE
START_BLOCK
TAG_CLEAR_CROSS_CRATE_CLEAR
TAG_CLEAR_CROSS_CRATE_SET

Traits

HasLocalDecls

Functions

pretty_print_const
pretty_print_const_value

Type Definitions

AssertMessage	Type for MIR Assert terminator error messages.
LocalDecls	Types for locals
PlaceElem	Alias for projections as they appear in places, where the base is a place and the index is a local.
ProjectionKind	Alias for projections as they appear in UserTypeProjection, where we need neither the V parameter for Index nor the T for Field.
Successors
SuccessorsMut