expr

package
v1.4.15 Latest Latest
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 Go to latest Published: Feb 18, 2024 License: Apache-2.0 Imports: 5 Imported by: 0

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Constants

This section is empty.

Variables

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var ErrUnsupportedBinaryExpr = errors.New("unsupported binary expression")

ErrUnsupportedBinaryExpr is the error that the binary expression is unsupported

Functions

func NewOperationError added in v1.4.10 

func NewOperationError(left, right reflect.Value, operator string) error

NewOperationError creates a new OperationError. It takes the left and right values that caused the error, and the operator that was being applied.

Types

type ADDExprExecutor 

type ADDExprExecutor struct{}

ADDExprExecutor is the executor for +

func (ADDExprExecutor) Exec 

func (ADDExprExecutor) Exec(x, y func() (reflect.Value, error)) (reflect.Value, error)

Exec execute the binary expression implement BinaryExprExecutor interface

type ANDExprExecutor 

type ANDExprExecutor struct{}

ANDExprExecutor is the executor for &&

func (ANDExprExecutor) Exec 

func (ANDExprExecutor) Exec(x, y func() (reflect.Value, error)) (reflect.Value, error)

Exec execute the binary expression implement BinaryExprExecutor interface

type BinaryExprExecutor 

type BinaryExprExecutor interface {
	// Exec execute the binary expression
	// right is the right value of the binary expression
	// next is the function to get the left value of the binary expression
	// return the result of the binary expression
	Exec(x, y func() (reflect.Value, error)) (reflect.Value, error)
}

BinaryExprExecutor is the interface for binary expression executor

func FromToken added in v1.4.10 

func FromToken(t token.Token) (BinaryExprExecutor, error)

FromToken returns the BinaryExprExecutor from the token

type BoolOperator added in v1.4.10 

type BoolOperator struct {
	OperatorExpr
}

BoolOperator represents a boolean operator. It embeds OperatorExpr to inherit its methods.

func (BoolOperator) Operate added in v1.4.10 

func (o BoolOperator) Operate(left, right reflect.Value) (reflect.Value, error)

Operate method implements the Operator interface for BoolOperator. It performs the operation represented by the operator on the two boolean values.

type COMMENTExprExecutor 

type COMMENTExprExecutor struct{}

func (COMMENTExprExecutor) Exec 

func (COMMENTExprExecutor) Exec(_, _ func() (reflect.Value, error)) (reflect.Value, error)

type ComplexOperator added in v1.4.10 

type ComplexOperator struct {
	OperatorExpr
}

ComplexOperator represents a complex operator. It embeds OperatorExpr to inherit its methods.

func (ComplexOperator) Operate added in v1.4.10 

func (o ComplexOperator) Operate(left, right reflect.Value) (reflect.Value, error)

Operate method implements the Operator interface for ComplexOperator. It performs the operation represented by the operator on the two complex values.

type EQLExprExecutor 

type EQLExprExecutor struct{}

EQLExprExecutor is the executor for ==

func (EQLExprExecutor) Exec 

func (EQLExprExecutor) Exec(x, y func() (reflect.Value, error)) (reflect.Value, error)

Exec execute the binary expression implement BinaryExprExecutor interface

type FloatOperator added in v1.4.10 

type FloatOperator struct {
	OperatorExpr
}

FloatOperator represents a float operator. It embeds OperatorExpr to inherit its methods.

func (FloatOperator) Operate added in v1.4.10 

func (o FloatOperator) Operate(left, right reflect.Value) (reflect.Value, error)

Operate method implements the Operator interface for FloatOperator. It performs the operation represented by the operator on the two float values.

type GEQExprExecutor 

type GEQExprExecutor struct{}

GEQExprExecutor is the executor for >=

func (GEQExprExecutor) Exec 

func (GEQExprExecutor) Exec(x, y func() (reflect.Value, error)) (reflect.Value, error)

Exec execute the binary expression implement BinaryExprExecutor interface

type GTRExprExecutor 

type GTRExprExecutor struct{}

GTRExprExecutor is the executor for >

func (GTRExprExecutor) Exec 

func (GTRExprExecutor) Exec(x, y func() (reflect.Value, error)) (reflect.Value, error)

Exec execute the binary expression implement BinaryExprExecutor interface

type GenericOperator added in v1.4.10 

type GenericOperator struct {
	OperatorExpr
}

GenericOperator represents a generic operator. It embeds OperatorExpr to inherit its methods.

func (GenericOperator) Operate added in v1.4.10 

func (o GenericOperator) Operate(left, right reflect.Value) (reflect.Value, error)

Operate method implements the Operator interface for GenericOperator. It performs the operation represented by the operator on the two values, which can be of any type.

type IntOperator added in v1.4.10 

type IntOperator struct {
	OperatorExpr
}

IntOperator represents an integer operator. It embeds OperatorExpr to inherit its methods.

func (IntOperator) Operate added in v1.4.10 

func (o IntOperator) Operate(left, right reflect.Value) (reflect.Value, error)

Operate method implements the Operator interface for IntOperator. It performs the operation represented by the operator on the two integer values.

type InvalidTypeOperator added in v1.4.10 

type InvalidTypeOperator struct {
	OperatorExpr
}

InvalidTypeOperator represents a type operator. It embeds OperatorExpr to inherit its methods.

func (InvalidTypeOperator) Operate added in v1.4.10 

func (o InvalidTypeOperator) Operate(left, right reflect.Value) (result reflect.Value, err error)

Operate method implements the Operator interface for InvalidTypeOperator. It performs the operation represented by the operator on the two values, which are of invalid type.

type LANDExprExecutor 

type LANDExprExecutor struct{}

LANDExprExecutor is the executor for &&

func (LANDExprExecutor) Exec 

func (LANDExprExecutor) Exec(x, y func() (reflect.Value, error)) (reflect.Value, error)

Exec execute the binary expression implement BinaryExprExecutor interface

type LEQExprExecutor 

type LEQExprExecutor struct{}

LEQExprExecutor is the executor for <=

func (LEQExprExecutor) Exec 

func (LEQExprExecutor) Exec(x, y func() (reflect.Value, error)) (reflect.Value, error)

Exec execute the binary expression implement BinaryExprExecutor interface

type LORExprExecutor 

type LORExprExecutor struct{}

LORExprExecutor is the executor for ||

func (LORExprExecutor) Exec 

func (LORExprExecutor) Exec(x, y func() (reflect.Value, error)) (reflect.Value, error)

Exec execute the binary expression implement BinaryExprExecutor interface

type LPARENExprExecutor 

type LPARENExprExecutor struct{}

LPARENExprExecutor is the executor for (

func (LPARENExprExecutor) Exec 

func (LPARENExprExecutor) Exec(_, y func() (reflect.Value, error)) (reflect.Value, error)

Exec execute the binary expression implement BinaryExprExecutor interface

type LSSExprExecutor 

type LSSExprExecutor struct{}

LSSExprExecutor is the executor for <

func (LSSExprExecutor) Exec 

func (LSSExprExecutor) Exec(x, y func() (reflect.Value, error)) (reflect.Value, error)

Exec execute the binary expression implement BinaryExprExecutor interface

type MULExprExecutor 

type MULExprExecutor struct{}

MULExprExecutor is the executor for *

func (MULExprExecutor) Exec 

func (MULExprExecutor) Exec(x, y func() (reflect.Value, error)) (reflect.Value, error)

Exec execute the binary expression implement BinaryExprExecutor interface

type NEQExprExecutor 

type NEQExprExecutor struct{}

NEQExprExecutor is the executor for !=

func (NEQExprExecutor) Exec 

func (NEQExprExecutor) Exec(x, y func() (reflect.Value, error)) (reflect.Value, error)

Exec execute the binary expression implement BinaryExprExecutor interface

type NOTExprExecutor 

type NOTExprExecutor struct{}

NOTExprExecutor is the executor for !

func (NOTExprExecutor) Exec 

func (NOTExprExecutor) Exec(_, y func() (reflect.Value, error)) (reflect.Value, error)

Exec execute the binary expression implement BinaryExprExecutor interface

type ORExprExecutor 

type ORExprExecutor struct{}

ORExprExecutor is the executor for ||

func (ORExprExecutor) Exec 

func (ORExprExecutor) Exec(x, y func() (reflect.Value, error)) (reflect.Value, error)

Exec execute the binary expression implement BinaryExprExecutor interface

type OperationError added in v1.4.10 

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

OperationError represents an operation error between two values. It contains the left and right values that caused the error, and the operator that was being applied.

func (OperationError) Error added in v1.4.10 

func (c OperationError) Error() string

Error method implements the error interface. It returns a string describing the error.

type Operator added in v1.4.10 

type Operator interface {

	// Operate performs an operation between two values.
	Operate(left, right reflect.Value) (reflect.Value, error)
}

Operator defines an interface for operators. It has a single method, Operate, which performs an operation between two values.

type OperatorExecutor added in v1.4.10 

type OperatorExecutor struct {
	Operator
}

OperatorExecutor is the executor for operator

func (OperatorExecutor) Exec added in v1.4.10 

func (c OperatorExecutor) Exec(x, y func() (reflect.Value, error)) (reflect.Value, error)

Exec execute the binary expression

type OperatorExpr added in v1.4.10 

type OperatorExpr int

OperatorExpr represents an operator expression. It is an integer type that represents different types of operators. 

const (
	Add  OperatorExpr = iota // +
	Sub                      // -
	Mul                      // *
	Quo                      // /
	Rem                      // %
	And                      // &
	Land                     // &&
	Or                       // |
	Lor                      // ||
	Eq                       // ==
	Ne                       // !=
	Lt                       // <
	Le                       // <=
	Gt                       // >
	Ge                       // >=
)

func (OperatorExpr) String added in v1.4.10 

func (e OperatorExpr) String() string

String method returns the string representation of the operator.

type QUOExprExecutor 

type QUOExprExecutor struct{}

QUOExprExecutor is the executor for /

func (QUOExprExecutor) Exec 

func (QUOExprExecutor) Exec(x, y func() (reflect.Value, error)) (reflect.Value, error)

Exec execute the binary expression implement BinaryExprExecutor interface

type REMExprExecutor 

type REMExprExecutor struct{}

REMExprExecutor is the executor for %

func (REMExprExecutor) Exec 

func (REMExprExecutor) Exec(x, y func() (reflect.Value, error)) (reflect.Value, error)

Exec execute the binary expression implement BinaryExprExecutor interface

type RPARENExprExecutor 

type RPARENExprExecutor struct{}

RPARENExprExecutor is the executor for ) it just return the value

func (RPARENExprExecutor) Exec 

func (RPARENExprExecutor) Exec(x, _ func() (reflect.Value, error)) (reflect.Value, error)

Exec execute the binary expression implement BinaryExprExecutor interface

type SUBExprExecutor 

type SUBExprExecutor struct{}

SUBExprExecutor is the executor for -

func (SUBExprExecutor) Exec 

func (SUBExprExecutor) Exec(x, y func() (reflect.Value, error)) (reflect.Value, error)

Exec execute the binary expression implement BinaryExprExecutor interface

type StringOperator added in v1.4.10 

type StringOperator struct {
	OperatorExpr
}

StringOperator represents a string operator. It embeds OperatorExpr to inherit its methods.

func (StringOperator) Operate added in v1.4.10 

func (o StringOperator) Operate(left, right reflect.Value) (reflect.Value, error)

Operate method implements the Operator interface for StringOperator. It performs the operation represented by the operator on the two string values.

type UintOperator added in v1.4.10 

type UintOperator struct {
	OperatorExpr
}

UintOperator represents an unsigned integer operator. It embeds OperatorExpr to inherit its methods.

func (UintOperator) Operate added in v1.4.10 

func (o UintOperator) Operate(left, right reflect.Value) (reflect.Value, error)

Operate method implements the Operator interface for UintOperator. It performs the operation represented by the operator on the two unsigned integer values.

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