package vrp

import "honnef.co/go/tools/staticcheck/vrp"

Index

Variables 

var EmptyIntInterval = IntInterval{true, PInfinity, NInfinity}
var NInfinity = Z{/* contains filtered or unexported fields */}
var PInfinity = Z{/* contains filtered or unexported fields */}

Functions

func NewConstraint 

func NewConstraint(y ssa.Value) aConstraint

func VertexString 

func VertexString(v *Vertex) string

Types

type ArraySliceConstraint 

type ArraySliceConstraint struct {
	X     ssa.Value
	Lower ssa.Value
	Upper ssa.Value
	// contains filtered or unexported fields
}

func (*ArraySliceConstraint) Eval 

func (c *ArraySliceConstraint) Eval(g *Graph) Range

func (*ArraySliceConstraint) Operands 

func (c *ArraySliceConstraint) Operands() []ssa.Value

func (*ArraySliceConstraint) String 

func (c *ArraySliceConstraint) String() string

func (ArraySliceConstraint) Y 

func (c ArraySliceConstraint) Y() ssa.Value

type ChannelChangeTypeConstraint 

type ChannelChangeTypeConstraint struct {
	X ssa.Value
	// contains filtered or unexported fields
}

func (*ChannelChangeTypeConstraint) Eval 

func (c *ChannelChangeTypeConstraint) Eval(g *Graph) Range

func (*ChannelChangeTypeConstraint) Operands 

func (c *ChannelChangeTypeConstraint) Operands() []ssa.Value

func (*ChannelChangeTypeConstraint) String 

func (c *ChannelChangeTypeConstraint) String() string

func (ChannelChangeTypeConstraint) Y 

func (c ChannelChangeTypeConstraint) Y() ssa.Value

type ChannelInterval 

type ChannelInterval struct {
	Size IntInterval
}

func (ChannelInterval) IsKnown 

func (c ChannelInterval) IsKnown() bool

func (ChannelInterval) String 

func (c ChannelInterval) String() string

func (ChannelInterval) Union 

func (c ChannelInterval) Union(other Range) Range

type Constraint 

type Constraint interface {
	Y() ssa.Value

	String() string
	Eval(*Graph) Range
	Operands() []ssa.Value
	// contains filtered or unexported methods
}

func NewArraySliceConstraint 

func NewArraySliceConstraint(x, lower, upper, y ssa.Value) Constraint

func NewChannelChangeTypeConstraint 

func NewChannelChangeTypeConstraint(x, y ssa.Value) Constraint

func NewCopyConstraint 

func NewCopyConstraint(x, y ssa.Value) Constraint

func NewIntAddConstraint 

func NewIntAddConstraint(a, b, y ssa.Value) Constraint

func NewIntConversionConstraint 

func NewIntConversionConstraint(x, y ssa.Value) Constraint

func NewIntIntersectionConstraint 

func NewIntIntersectionConstraint(a, b ssa.Value, op token.Token, ranges Ranges, y ssa.Value) Constraint

func NewIntIntervalConstraint 

func NewIntIntervalConstraint(i IntInterval, y ssa.Value) Constraint

func NewIntMulConstraint 

func NewIntMulConstraint(a, b, y ssa.Value) Constraint

func NewIntSubConstraint 

func NewIntSubConstraint(a, b, y ssa.Value) Constraint

func NewMakeChannelConstraint 

func NewMakeChannelConstraint(buffer, y ssa.Value) Constraint

func NewMakeSliceConstraint 

func NewMakeSliceConstraint(size, y ssa.Value) Constraint

func NewPhiConstraint 

func NewPhiConstraint(vars []ssa.Value, y ssa.Value) Constraint

func NewSliceAppendConstraint 

func NewSliceAppendConstraint(a, b, y ssa.Value) Constraint

func NewSliceIntersectionConstraint 

func NewSliceIntersectionConstraint(x ssa.Value, i IntInterval, y ssa.Value) Constraint

func NewSliceIntervalConstraint 

func NewSliceIntervalConstraint(i IntInterval, y ssa.Value) Constraint

func NewSliceLengthConstraint 

func NewSliceLengthConstraint(x, y ssa.Value) Constraint

func NewSliceSliceConstraint 

func NewSliceSliceConstraint(x, lower, upper, y ssa.Value) Constraint

func NewStringConcatConstraint 

func NewStringConcatConstraint(a, b, y ssa.Value) Constraint

func NewStringIntersectionConstraint 

func NewStringIntersectionConstraint(a, b ssa.Value, op token.Token, ranges Ranges, y ssa.Value) Constraint

func NewStringIntervalConstraint 

func NewStringIntervalConstraint(i IntInterval, y ssa.Value) Constraint

func NewStringLengthConstraint 

func NewStringLengthConstraint(x ssa.Value, y ssa.Value) Constraint

func NewStringSliceConstraint 

func NewStringSliceConstraint(x, lower, upper, y ssa.Value) Constraint

type CopyConstraint 

type CopyConstraint struct {
	X ssa.Value
	// contains filtered or unexported fields
}

func (*CopyConstraint) Eval 

func (c *CopyConstraint) Eval(g *Graph) Range

func (*CopyConstraint) Operands 

func (c *CopyConstraint) Operands() []ssa.Value

func (*CopyConstraint) String 

func (c *CopyConstraint) String() string

func (CopyConstraint) Y 

func (c CopyConstraint) Y() ssa.Value

type Edge 

type Edge struct {
	From, To *Vertex
	// contains filtered or unexported fields
}

func (Edge) String 

func (e Edge) String() string

type Future 

type Future interface {
	Constraint
	Futures() []ssa.Value
	Resolve()
	IsKnown() bool
	MarkUnresolved()
	MarkResolved()
	IsResolved() bool
}

type Graph 

type Graph struct {
	Vertices map[interface{}]*Vertex
	Edges    []Edge
	SCCs     [][]*Vertex
	// contains filtered or unexported fields
}

func BuildGraph 

func BuildGraph(f *ssa.Function) *Graph

func (*Graph) AddEdge 

func (g *Graph) AddEdge(from, to interface{}, ctrl bool)

func (*Graph) FindSCCs 

func (g *Graph) FindSCCs()

func (Graph) Graphviz 

func (g Graph) Graphviz() string

func (*Graph) Range 

func (g *Graph) Range(x ssa.Value) Range

func (*Graph) SetRange 

func (g *Graph) SetRange(x ssa.Value, r Range)

func (*Graph) Solve 

func (g *Graph) Solve() Ranges

type IntAddConstraint 

type IntAddConstraint struct{ *IntArithmeticConstraint }

func (IntAddConstraint) Y 

func (c IntAddConstraint) Y() ssa.Value

type IntArithmeticConstraint 

type IntArithmeticConstraint struct {
	A  ssa.Value
	B  ssa.Value
	Op token.Token
	Fn func(IntInterval, IntInterval) IntInterval
	// contains filtered or unexported fields
}

func NewIntArithmeticConstraint 

func NewIntArithmeticConstraint(a, b, y ssa.Value, op token.Token, fn func(IntInterval, IntInterval) IntInterval) *IntArithmeticConstraint

func (*IntArithmeticConstraint) Eval 

func (c *IntArithmeticConstraint) Eval(g *Graph) Range

func (*IntArithmeticConstraint) Operands 

func (c *IntArithmeticConstraint) Operands() []ssa.Value

func (*IntArithmeticConstraint) String 

func (c *IntArithmeticConstraint) String() string

func (IntArithmeticConstraint) Y 

func (c IntArithmeticConstraint) Y() ssa.Value

type IntConversionConstraint 

type IntConversionConstraint struct {
	X ssa.Value
	// contains filtered or unexported fields
}

func (*IntConversionConstraint) Eval 

func (c *IntConversionConstraint) Eval(g *Graph) Range

func (*IntConversionConstraint) Operands 

func (c *IntConversionConstraint) Operands() []ssa.Value

func (*IntConversionConstraint) String 

func (c *IntConversionConstraint) String() string

func (IntConversionConstraint) Y 

func (c IntConversionConstraint) Y() ssa.Value

type IntIntersectionConstraint 

type IntIntersectionConstraint struct {
	A  ssa.Value
	B  ssa.Value
	Op token.Token
	I  IntInterval
	// contains filtered or unexported fields
}

func (*IntIntersectionConstraint) Eval 

func (c *IntIntersectionConstraint) Eval(g *Graph) Range

func (*IntIntersectionConstraint) Futures 

func (c *IntIntersectionConstraint) Futures() []ssa.Value

func (*IntIntersectionConstraint) IsKnown 

func (c *IntIntersectionConstraint) IsKnown() bool

func (*IntIntersectionConstraint) IsResolved 

func (c *IntIntersectionConstraint) IsResolved() bool

func (*IntIntersectionConstraint) MarkResolved 

func (c *IntIntersectionConstraint) MarkResolved()

func (*IntIntersectionConstraint) MarkUnresolved 

func (c *IntIntersectionConstraint) MarkUnresolved()

func (*IntIntersectionConstraint) Operands 

func (c *IntIntersectionConstraint) Operands() []ssa.Value

func (*IntIntersectionConstraint) Resolve 

func (c *IntIntersectionConstraint) Resolve()

func (*IntIntersectionConstraint) String 

func (c *IntIntersectionConstraint) String() string

func (IntIntersectionConstraint) Y 

func (c IntIntersectionConstraint) Y() ssa.Value

type IntInterval 

type IntInterval struct {
	Lower Z
	Upper Z
	// contains filtered or unexported fields
}

func InfinityFor 

func InfinityFor(v ssa.Value) IntInterval

func NewIntInterval 

func NewIntInterval(l, u Z) IntInterval

func (IntInterval) Add 

func (i1 IntInterval) Add(i2 IntInterval) IntInterval

func (IntInterval) Empty 

func (i IntInterval) Empty() bool

func (IntInterval) Intersection 

func (i1 IntInterval) Intersection(i2 IntInterval) IntInterval

func (IntInterval) IsKnown 

func (i IntInterval) IsKnown() bool

func (IntInterval) IsMaxRange 

func (i IntInterval) IsMaxRange() bool

func (IntInterval) Mul 

func (i1 IntInterval) Mul(i2 IntInterval) IntInterval

func (IntInterval) String 

func (i1 IntInterval) String() string

func (IntInterval) Sub 

func (i1 IntInterval) Sub(i2 IntInterval) IntInterval

func (IntInterval) Union 

func (i1 IntInterval) Union(other Range) Range

type IntIntervalConstraint 

type IntIntervalConstraint struct {
	I IntInterval
	// contains filtered or unexported fields
}

func (*IntIntervalConstraint) Eval 

func (c *IntIntervalConstraint) Eval(*Graph) Range

func (*IntIntervalConstraint) Operands 

func (s *IntIntervalConstraint) Operands() []ssa.Value

func (*IntIntervalConstraint) String 

func (c *IntIntervalConstraint) String() string

func (IntIntervalConstraint) Y 

func (c IntIntervalConstraint) Y() ssa.Value

type IntMulConstraint 

type IntMulConstraint struct{ *IntArithmeticConstraint }

func (IntMulConstraint) Y 

func (c IntMulConstraint) Y() ssa.Value

type IntSubConstraint 

type IntSubConstraint struct{ *IntArithmeticConstraint }

func (IntSubConstraint) Y 

func (c IntSubConstraint) Y() ssa.Value

type MakeChannelConstraint 

type MakeChannelConstraint struct {
	Buffer ssa.Value
	// contains filtered or unexported fields
}

func (*MakeChannelConstraint) Eval 

func (c *MakeChannelConstraint) Eval(g *Graph) Range

func (*MakeChannelConstraint) Operands 

func (c *MakeChannelConstraint) Operands() []ssa.Value

func (*MakeChannelConstraint) String 

func (c *MakeChannelConstraint) String() string

func (MakeChannelConstraint) Y 

func (c MakeChannelConstraint) Y() ssa.Value

type MakeSliceConstraint 

type MakeSliceConstraint struct {
	Size ssa.Value
	// contains filtered or unexported fields
}

func (*MakeSliceConstraint) Eval 

func (c *MakeSliceConstraint) Eval(g *Graph) Range

func (*MakeSliceConstraint) Operands 

func (c *MakeSliceConstraint) Operands() []ssa.Value

func (*MakeSliceConstraint) String 

func (c *MakeSliceConstraint) String() string

func (MakeSliceConstraint) Y 

func (c MakeSliceConstraint) Y() ssa.Value

type PhiConstraint 

type PhiConstraint struct {
	Vars []ssa.Value
	// contains filtered or unexported fields
}

func (*PhiConstraint) Eval 

func (c *PhiConstraint) Eval(g *Graph) Range

func (*PhiConstraint) Operands 

func (c *PhiConstraint) Operands() []ssa.Value

func (*PhiConstraint) String 

func (c *PhiConstraint) String() string

func (PhiConstraint) Y 

func (c PhiConstraint) Y() ssa.Value

type Range 

type Range interface {
	Union(other Range) Range
	IsKnown() bool
}

type Ranges 

type Ranges map[ssa.Value]Range

func (Ranges) Get 

func (r Ranges) Get(x ssa.Value) Range

type SliceAppendConstraint 

type SliceAppendConstraint struct {
	A ssa.Value
	B ssa.Value
	// contains filtered or unexported fields
}

func (*SliceAppendConstraint) Eval 

func (c *SliceAppendConstraint) Eval(g *Graph) Range

func (*SliceAppendConstraint) Operands 

func (c *SliceAppendConstraint) Operands() []ssa.Value

func (*SliceAppendConstraint) String 

func (c *SliceAppendConstraint) String() string

func (SliceAppendConstraint) Y 

func (c SliceAppendConstraint) Y() ssa.Value

type SliceIntersectionConstraint 

type SliceIntersectionConstraint struct {
	X ssa.Value
	I IntInterval
	// contains filtered or unexported fields
}

func (*SliceIntersectionConstraint) Eval 

func (c *SliceIntersectionConstraint) Eval(g *Graph) Range

func (*SliceIntersectionConstraint) Operands 

func (c *SliceIntersectionConstraint) Operands() []ssa.Value

func (*SliceIntersectionConstraint) String 

func (c *SliceIntersectionConstraint) String() string

func (SliceIntersectionConstraint) Y 

func (c SliceIntersectionConstraint) Y() ssa.Value

type SliceInterval 

type SliceInterval struct {
	Length IntInterval
}

func (SliceInterval) IsKnown 

func (s SliceInterval) IsKnown() bool

func (SliceInterval) String 

func (s SliceInterval) String() string

func (SliceInterval) Union 

func (s SliceInterval) Union(other Range) Range

type SliceIntervalConstraint 

type SliceIntervalConstraint struct {
	I IntInterval
	// contains filtered or unexported fields
}

func (*SliceIntervalConstraint) Eval 

func (c *SliceIntervalConstraint) Eval(*Graph) Range

func (*SliceIntervalConstraint) Operands 

func (s *SliceIntervalConstraint) Operands() []ssa.Value

func (*SliceIntervalConstraint) String 

func (c *SliceIntervalConstraint) String() string

func (SliceIntervalConstraint) Y 

func (c SliceIntervalConstraint) Y() ssa.Value

type SliceLengthConstraint 

type SliceLengthConstraint struct {
	X ssa.Value
	// contains filtered or unexported fields
}

func (*SliceLengthConstraint) Eval 

func (c *SliceLengthConstraint) Eval(g *Graph) Range

func (*SliceLengthConstraint) Operands 

func (c *SliceLengthConstraint) Operands() []ssa.Value

func (*SliceLengthConstraint) String 

func (c *SliceLengthConstraint) String() string

func (SliceLengthConstraint) Y 

func (c SliceLengthConstraint) Y() ssa.Value

type SliceSliceConstraint 

type SliceSliceConstraint struct {
	X     ssa.Value
	Lower ssa.Value
	Upper ssa.Value
	// contains filtered or unexported fields
}

func (*SliceSliceConstraint) Eval 

func (c *SliceSliceConstraint) Eval(g *Graph) Range

func (*SliceSliceConstraint) Operands 

func (c *SliceSliceConstraint) Operands() []ssa.Value

func (*SliceSliceConstraint) String 

func (c *SliceSliceConstraint) String() string

func (SliceSliceConstraint) Y 

func (c SliceSliceConstraint) Y() ssa.Value

type StringConcatConstraint 

type StringConcatConstraint struct {
	A ssa.Value
	B ssa.Value
	// contains filtered or unexported fields
}

func (StringConcatConstraint) Eval 

func (c StringConcatConstraint) Eval(g *Graph) Range

func (StringConcatConstraint) Operands 

func (c StringConcatConstraint) Operands() []ssa.Value

func (StringConcatConstraint) String 

func (c StringConcatConstraint) String() string

func (StringConcatConstraint) Y 

func (c StringConcatConstraint) Y() ssa.Value

type StringIntersectionConstraint 

type StringIntersectionConstraint struct {
	A  ssa.Value
	B  ssa.Value
	Op token.Token
	I  IntInterval
	// contains filtered or unexported fields
}

func (*StringIntersectionConstraint) Eval 

func (c *StringIntersectionConstraint) Eval(g *Graph) Range

func (*StringIntersectionConstraint) Futures 

func (c *StringIntersectionConstraint) Futures() []ssa.Value

func (*StringIntersectionConstraint) IsKnown 

func (c *StringIntersectionConstraint) IsKnown() bool

func (*StringIntersectionConstraint) IsResolved 

func (c *StringIntersectionConstraint) IsResolved() bool

func (*StringIntersectionConstraint) MarkResolved 

func (c *StringIntersectionConstraint) MarkResolved()

func (*StringIntersectionConstraint) MarkUnresolved 

func (c *StringIntersectionConstraint) MarkUnresolved()

func (*StringIntersectionConstraint) Operands 

func (c *StringIntersectionConstraint) Operands() []ssa.Value

func (*StringIntersectionConstraint) Resolve 

func (c *StringIntersectionConstraint) Resolve()

func (*StringIntersectionConstraint) String 

func (c *StringIntersectionConstraint) String() string

func (StringIntersectionConstraint) Y 

func (c StringIntersectionConstraint) Y() ssa.Value

type StringInterval 

type StringInterval struct {
	Length IntInterval
}

func (StringInterval) IsKnown 

func (s StringInterval) IsKnown() bool

func (StringInterval) String 

func (s StringInterval) String() string

func (StringInterval) Union 

func (s StringInterval) Union(other Range) Range

type StringIntervalConstraint 

type StringIntervalConstraint struct {
	I IntInterval
	// contains filtered or unexported fields
}

func (*StringIntervalConstraint) Eval 

func (c *StringIntervalConstraint) Eval(*Graph) Range

func (*StringIntervalConstraint) Operands 

func (s *StringIntervalConstraint) Operands() []ssa.Value

func (*StringIntervalConstraint) String 

func (c *StringIntervalConstraint) String() string

func (StringIntervalConstraint) Y 

func (c StringIntervalConstraint) Y() ssa.Value

type StringLengthConstraint 

type StringLengthConstraint struct {
	X ssa.Value
	// contains filtered or unexported fields
}

func (*StringLengthConstraint) Eval 

func (c *StringLengthConstraint) Eval(g *Graph) Range

func (*StringLengthConstraint) Operands 

func (c *StringLengthConstraint) Operands() []ssa.Value

func (*StringLengthConstraint) String 

func (c *StringLengthConstraint) String() string

func (StringLengthConstraint) Y 

func (c StringLengthConstraint) Y() ssa.Value

type StringSliceConstraint 

type StringSliceConstraint struct {
	X     ssa.Value
	Lower ssa.Value
	Upper ssa.Value
	// contains filtered or unexported fields
}

func (*StringSliceConstraint) Eval 

func (c *StringSliceConstraint) Eval(g *Graph) Range

func (*StringSliceConstraint) Operands 

func (c *StringSliceConstraint) Operands() []ssa.Value

func (*StringSliceConstraint) String 

func (c *StringSliceConstraint) String() string

func (StringSliceConstraint) Y 

func (c StringSliceConstraint) Y() ssa.Value

type Vertex 

type Vertex struct {
	Value interface{} // one of Constraint or ssa.Value
	SCC   int

	Succs []Edge
	// contains filtered or unexported fields
}

type Z 

type Z struct {
	// contains filtered or unexported fields
}

func ConstantToZ 

func ConstantToZ(c constant.Value) Z

func MaxZ 

func MaxZ(zs ...Z) Z

func MinZ 

func MinZ(zs ...Z) Z

func NewBigZ 

func NewBigZ(n *big.Int) Z

func NewZ 

func NewZ(n int64) Z

func (Z) Add 

func (z1 Z) Add(z2 Z) Z

func (Z) Cmp 

func (z1 Z) Cmp(z2 Z) int

func (Z) Infinite 

func (z1 Z) Infinite() bool

func (Z) Mul 

func (z1 Z) Mul(z2 Z) Z

func (Z) Negate 

func (z1 Z) Negate() Z

func (Z) Sign 

func (z1 Z) Sign() int

func (Z) String 

func (z1 Z) String() string

func (Z) Sub 

func (z1 Z) Sub(z2 Z) Z

type Zs 

type Zs []Z

func (Zs) Len 

func (zs Zs) Len() int

func (Zs) Less 

func (zs Zs) Less(i int, j int) bool

func (Zs) Swap 

func (zs Zs) Swap(i int, j int)

Source Files

channel.go int.go slice.go string.go vrp.go

Version
v0.0.1-2019.2.3
Published
Sep 4, 2019
Platform
windows/amd64
Imports
9 packages
Last checked
14 minutes ago –

Tools for package owners.