ast

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 Go to latest Published: Apr 26, 2020 License: MIT Imports: 5 Imported by: 8

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Constants

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Variables

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Functions

This section is empty.

Types

type ArgumentPairExpression added in v0.1.8 

type ArgumentPairExpression struct {
	*BaseNode
	Key   Expression
	Value Expression
}

ArgumentPairExpression represents a key/value pair in method parameters or arguments

func (*ArgumentPairExpression) String added in v0.1.8 

func (ape *ArgumentPairExpression) String() string

String .....

func (*ArgumentPairExpression) TokenLiteral added in v0.1.8 

func (ape *ArgumentPairExpression) TokenLiteral() string

TokenLiteral is a polymorphic function to return a token literal

type ArrayExpression 

type ArrayExpression struct {
	*BaseNode
	Elements []Expression
}

ArrayExpression defines the array expression literal which contains the node expression and its value

func (*ArrayExpression) IsArrayExpression added in v0.1.8 

func (ae *ArrayExpression) IsArrayExpression(t *testing.T) *testableArrayExpression

IsArrayExpression returns pointer of the receiver array expression

func (*ArrayExpression) String 

func (ae *ArrayExpression) String() string

ArrayExpression.String gets the string format of the Array type token

func (*ArrayExpression) TokenLiteral 

func (ae *ArrayExpression) TokenLiteral() string

TokenLiteral is a polymorphic function to return a token literal

type AssignExpression added in v0.1.0 

type AssignExpression struct {
	*BaseNode
	Variables []Expression
	Value     Expression
	// Optioned attribute is only used when infix expression is local assignment in params.
	// For example: `foo(x = 10)`'s `x = 10` is an optioned assign expression
	// TODO: Remove this when we can put metadata inside bytecode.
	Optioned int
}

AssignExpression represents variable assignment in Goby

func (*AssignExpression) IsAssignExpression added in v0.1.8 

func (ae *AssignExpression) IsAssignExpression(t *testing.T) *testableAssignExpression

IsAssignExpression returns pointer of the receiver assign expression

func (*AssignExpression) String added in v0.1.0 

func (ae *AssignExpression) String() string

func (*AssignExpression) TokenLiteral added in v0.1.0 

func (ae *AssignExpression) TokenLiteral() string

TokenLiteral is a polymorphic function to return a token literal of assignment

type BaseNode added in v0.1.0 

type BaseNode struct {
	Token token.Token
	// contains filtered or unexported fields
}

BaseNode holds the attribute every expression or statement should have

func (*BaseNode) IsArrayExpression added in v0.1.8 

func (b *BaseNode) IsArrayExpression(t *testing.T) *testableArrayExpression

IsArrayExpression fails the test and returns nil by default

func (*BaseNode) IsAssignExpression added in v0.1.8 

func (b *BaseNode) IsAssignExpression(t *testing.T) (ae *testableAssignExpression)

IsAssignExpression fails the test and returns nil by default

func (*BaseNode) IsBooleanExpression added in v0.1.8 

func (b *BaseNode) IsBooleanExpression(t *testing.T) (ae *testableBooleanExpression)

IsBooleanExpression fails the test and returns nil by default

func (*BaseNode) IsCallExpression added in v0.1.8 

func (b *BaseNode) IsCallExpression(t *testing.T) (ce *testableCallExpression)

IsCallExpression fails the test and returns nil by default

func (*BaseNode) IsClassStmt added in v0.1.8 

func (b *BaseNode) IsClassStmt(t *testing.T) *testableClassStatement

IsClassStmt fails the test and returns nil by default

func (*BaseNode) IsConditionalExpression added in v0.1.8 

func (b *BaseNode) IsConditionalExpression(t *testing.T) *testableConditionalExpression

IsConditionalExpression fails the test and returns nil by default

func (*BaseNode) IsConstant added in v0.1.8 

func (b *BaseNode) IsConstant(t *testing.T) (c *testableConstant)

IsConstant fails the test and returns nil by default

func (*BaseNode) IsDefStmt added in v0.1.8 

func (b *BaseNode) IsDefStmt(t *testing.T) *testableDefStatement

IsDefStmt fails the test and returns nil by default

func (*BaseNode) IsExp added in v0.1.0 

func (b *BaseNode) IsExp() bool

IsExp returns if current node should be considered as an expression

func (*BaseNode) IsExpression added in v0.1.8 

func (b *BaseNode) IsExpression(t *testing.T) (te testableExpression)

IsExpression fails the test and returns nil by default

func (*BaseNode) IsHashExpression added in v0.1.8 

func (b *BaseNode) IsHashExpression(t *testing.T) *testableHashExpression

IsHashExpression fails the test and returns nil by default

func (*BaseNode) IsIdentifier added in v0.1.8 

func (b *BaseNode) IsIdentifier(t *testing.T) *testableIdentifier

IsIdentifier fails the test and returns nil by default

func (*BaseNode) IsIfExpression added in v0.1.8 

func (b *BaseNode) IsIfExpression(t *testing.T) *testableIfExpression

IsIfExpression fails the test and returns nil by default

func (*BaseNode) IsInfixExpression added in v0.1.8 

func (b *BaseNode) IsInfixExpression(t *testing.T) (ie *testableInfixExpression)

IsInfixExpression fails the test and returns nil by default

func (*BaseNode) IsInstanceVariable added in v0.1.8 

func (b *BaseNode) IsInstanceVariable(t *testing.T) (ie *testableInstanceVariable)

IsInstanceVariable fails the test and returns nil by default

func (*BaseNode) IsIntegerLiteral added in v0.1.8 

func (b *BaseNode) IsIntegerLiteral(t *testing.T) (il *testableIntegerLiteral)

IsIntegerLiteral fails the test and returns nil by default

func (*BaseNode) IsModuleStmt added in v0.1.8 

func (b *BaseNode) IsModuleStmt(t *testing.T) *testableModuleStatement

IsModuleStmt fails the test and returns nil by default

func (*BaseNode) IsReturnStmt added in v0.1.8 

func (b *BaseNode) IsReturnStmt(t *testing.T) *testableReturnStatement

IsReturnStmt fails the test and returns nil by default

func (*BaseNode) IsSelfExpression added in v0.1.8 

func (b *BaseNode) IsSelfExpression(t *testing.T) (sl *testableSelfExpression)

IsSelfExpression fails the test and returns nil by default

func (*BaseNode) IsStmt added in v0.1.0 

func (b *BaseNode) IsStmt() bool

IsStmt returns if current node should be considered as a statement

func (*BaseNode) IsStringLiteral added in v0.1.8 

func (b *BaseNode) IsStringLiteral(t *testing.T) *testableStringLiteral

IsStringLiteral fails the test and returns nil by default

func (*BaseNode) IsWhileStmt added in v0.1.8 

func (b *BaseNode) IsWhileStmt(t *testing.T) (ws *testableWhileStatement)

IsWhileStmt fails the test and returns nil by default

func (*BaseNode) IsYieldExpression added in v0.1.8 

func (b *BaseNode) IsYieldExpression(t *testing.T) *testableYieldExpression

IsYieldExpression returns pointer of the receiver yield expression

func (*BaseNode) Line added in v0.1.0 

func (b *BaseNode) Line() int

Line returns node's token's line number

func (*BaseNode) MarkAsExp added in v0.1.0 

func (b *BaseNode) MarkAsExp()

MarkAsExp marks current node to be expression

func (*BaseNode) MarkAsStmt added in v0.1.0 

func (b *BaseNode) MarkAsStmt()

MarkAsStmt marks current node to be statement

type BlockStatement 

type BlockStatement struct {
	*BaseNode
	Statements []Statement
}

BlockStatement represents a block statement

func (*BlockStatement) IsEmpty added in v0.1.3 

func (bs *BlockStatement) IsEmpty() bool

IsEmpty checks if the statements in the block is empty

func (*BlockStatement) KeepLastValue added in v0.1.0 

func (bs *BlockStatement) KeepLastValue()

KeepLastValue prevents block's last expression statement to be popped.

func (*BlockStatement) String 

func (bs *BlockStatement) String() string

func (*BlockStatement) TokenLiteral 

func (bs *BlockStatement) TokenLiteral() string

TokenLiteral is a polymorphic function to return a token literal

type BooleanExpression 

type BooleanExpression struct {
	*BaseNode
	Value bool
}

BooleanExpression defines the boolean expression literal which contains the node expression and its value

func (*BooleanExpression) IsBooleanExpression added in v0.1.8 

func (be *BooleanExpression) IsBooleanExpression(t *testing.T) *testableBooleanExpression

IsBooleanExpression returns pointer of the receiver boolean expression

func (*BooleanExpression) String 

func (b *BooleanExpression) String() string

BooleanExpression.String gets the string format of the Boolean type token

func (*BooleanExpression) TokenLiteral 

func (b *BooleanExpression) TokenLiteral() string

TokenLiteral is a polymorphic function to return a token literal "true" "false"

type BreakStatement added in v0.1.0 

type BreakStatement struct {
	*BaseNode
}

BreakStatement represents "break" keyword

func (*BreakStatement) String added in v0.1.0 

func (bs *BreakStatement) String() string

func (*BreakStatement) TokenLiteral added in v0.1.0 

func (bs *BreakStatement) TokenLiteral() string

TokenLiteral is a polymorphic function to return a token literal

type CallExpression 

type CallExpression struct {
	*BaseNode
	Receiver       Expression
	Method         string
	Arguments      []Expression
	Block          *BlockStatement
	BlockArguments []*Identifier
}

CallExpression represents an expression for calling a method

func (*CallExpression) IsCallExpression added in v0.1.8 

func (ce *CallExpression) IsCallExpression(t *testing.T) *testableCallExpression

IsCallExpression returns pointer of the receiver call expression

func (*CallExpression) String 

func (tce *CallExpression) String() string

func (*CallExpression) TokenLiteral 

func (tce *CallExpression) TokenLiteral() string

TokenLiteral is a polymorphic function to return a token literal for a call expression

type ClassStatement 

type ClassStatement struct {
	*BaseNode
	Name           *Constant
	Body           *BlockStatement
	SuperClass     Expression
	SuperClassName string
}

ClassStatement represents a class node in AST

func (*ClassStatement) IsClassStmt added in v0.1.8 

func (cs *ClassStatement) IsClassStmt(t *testing.T) *testableClassStatement

IsClassStmt fails the test and returns nil by default

func (*ClassStatement) String 

func (cs *ClassStatement) String() string

func (*ClassStatement) TokenLiteral 

func (cs *ClassStatement) TokenLiteral() string

TokenLiteral is a polymorphic function to return a token literal

type CodeBlock added in v0.1.8 

type CodeBlock []TestableStatement

CodeBlock is a list of TestableStatement

func (CodeBlock) NthStmt added in v0.1.8 

func (cb CodeBlock) NthStmt(n int) TestableStatement

NthStmt returns the trailing TestableStatement

type ConditionalExpression added in v0.1.0 

type ConditionalExpression struct {
	*BaseNode
	Condition   Expression
	Consequence *BlockStatement
}

ConditionalExpression represents if or elsif expression

func (*ConditionalExpression) IsConditionalExpression added in v0.1.8 

func (ce *ConditionalExpression) IsConditionalExpression(t *testing.T) *testableConditionalExpression

IsConditionalExpression returns pointer of the receiver conditional expression

func (*ConditionalExpression) String added in v0.1.0 

func (ce *ConditionalExpression) String() string

func (*ConditionalExpression) TokenLiteral added in v0.1.0 

func (ce *ConditionalExpression) TokenLiteral() string

TokenLiteral is a polymorphic function to return a token literal `if` or `elsif`

type Constant 

type Constant struct {
	*BaseNode
	Value       string
	IsNamespace bool
}

Constant represents a constant that may include namespace

func (*Constant) IsConstant added in v0.1.8 

func (c *Constant) IsConstant(t *testing.T) *testableConstant

IsConstant returns pointer of the current receiver constant

func (*Constant) ReturnValue 

func (c *Constant) ReturnValue() string

ReturnValue is a polymorphic method for returning a value

func (*Constant) String 

func (c *Constant) String() string

func (*Constant) TokenLiteral 

func (c *Constant) TokenLiteral() string

TokenLiteral returns an empty string

type DefStatement 

type DefStatement struct {
	*BaseNode
	Name           *Identifier
	Receiver       Expression
	Parameters     []Expression
	BlockStatement *BlockStatement
}

DefStatement represents a "def" keyword with block

func (*DefStatement) IsDefStmt added in v0.1.8 

func (ds *DefStatement) IsDefStmt(t *testing.T) *testableDefStatement

IsDefStmt returns a pointer of the DefStatement

func (*DefStatement) String 

func (tds *DefStatement) String() string

func (*DefStatement) TokenLiteral 

func (tds *DefStatement) TokenLiteral() string

TokenLiteral is a polymorphic function to return a token literal

type Expression 

type Expression interface {
	// contains filtered or unexported methods
}

Expression satisfies "node" and expressionNode

type ExpressionStatement 

type ExpressionStatement struct {
	*BaseNode
	Expression Expression
}

ExpressionStatement represents an expression statement

func (*ExpressionStatement) IsExpression added in v0.1.8 

func (ts *ExpressionStatement) IsExpression(t *testing.T) testableExpression

IsExpression returns ExpressionStatement itself

func (*ExpressionStatement) String 

func (es *ExpressionStatement) String() string

func (*ExpressionStatement) TokenLiteral 

func (es *ExpressionStatement) TokenLiteral() string

TokenLiteral is a polymorphic function to return a token literal

type FloatLiteral added in v0.1.6 

type FloatLiteral struct {
	*BaseNode
	Value float64
}

FloatLiteral contains the node expression and its value

func (*FloatLiteral) String added in v0.1.6 

func (il *FloatLiteral) String() string

FloatLiteral.String gets the string format of the Float type token

func (*FloatLiteral) TokenLiteral added in v0.1.6 

func (il *FloatLiteral) TokenLiteral() string

TokenLiteral is a polymorphic function to return a token literal

type GetBlockExpression added in v0.1.7 

type GetBlockExpression struct {
	*BaseNode
}

GetBlockExpression represents `get_block` call in the AST

func (*GetBlockExpression) String added in v0.1.7 

func (gbe *GetBlockExpression) String() string

String ...

func (*GetBlockExpression) TokenLiteral added in v0.1.7 

func (gbe *GetBlockExpression) TokenLiteral() string

TokenLiteral is a polymorphic function to return a token literal for "get_block"

type HashExpression 

type HashExpression struct {
	*BaseNode
	Data map[string]Expression
}

HashExpression defines the hash expression literal which contains the node expression and its value

func (*HashExpression) IsHashExpression added in v0.1.8 

func (he *HashExpression) IsHashExpression(t *testing.T) *testableHashExpression

IsHashExpression returns pointer of the receiver hash expression

func (*HashExpression) String 

func (he *HashExpression) String() string

HashExpression.String gets the string format of the Hash type token

func (*HashExpression) TokenLiteral 

func (he *HashExpression) TokenLiteral() string

TokenLiteral is a polymorphic function to return a token literal

type Identifier 

type Identifier struct {
	*BaseNode
	Value string
}

Identifier represents an identifier string

func (*Identifier) IsIdentifier added in v0.1.8 

func (i *Identifier) IsIdentifier(t *testing.T) *testableIdentifier

IsIdentifier returns pointer of the receiver identifier

func (*Identifier) ReturnValue 

func (i *Identifier) ReturnValue() string

ReturnValue is a polymorphic method for returning a value

func (*Identifier) String 

func (i *Identifier) String() string

func (*Identifier) TokenLiteral 

func (i *Identifier) TokenLiteral() string

TokenLiteral returns an empty string

type IfExpression 

type IfExpression struct {
	*BaseNode
	Conditionals []*ConditionalExpression
	Alternative  *BlockStatement
}

IfExpression represents an "if" expression

func (*IfExpression) IsIfExpression added in v0.1.8 

func (ie *IfExpression) IsIfExpression(t *testing.T) *testableIfExpression

IsIfExpression returns pointer of the receiver if expression

func (*IfExpression) String 

func (ie *IfExpression) String() string

func (*IfExpression) TokenLiteral 

func (ie *IfExpression) TokenLiteral() string

TokenLiteral is a polymorphic function to return a token literal "if"

type InfixExpression 

type InfixExpression struct {
	*BaseNode
	Left     Expression
	Operator string
	Right    Expression
}

InfixExpression represents an expression with an infix

func (*InfixExpression) IsInfixExpression added in v0.1.8 

func (ie *InfixExpression) IsInfixExpression(t *testing.T) *testableInfixExpression

IsInfixExpression returns pointer of the receiver infix expression

func (*InfixExpression) String 

func (ie *InfixExpression) String() string

func (*InfixExpression) TokenLiteral 

func (ie *InfixExpression) TokenLiteral() string

TokenLiteral is a polymorphic function to return a token literal of infix

type InstanceVariable 

type InstanceVariable struct {
	*BaseNode
	Value string
}

InstanceVariable represents an instance variables

func (*InstanceVariable) IsInstanceVariable added in v0.1.8 

func (iv *InstanceVariable) IsInstanceVariable(t *testing.T) *testableInstanceVariable

IsInstanceVariable returns pointer of the receiver instance variable

func (*InstanceVariable) ReturnValue 

func (iv *InstanceVariable) ReturnValue() string

ReturnValue is a polymorphic method for returning a value

func (*InstanceVariable) String 

func (iv *InstanceVariable) String() string

func (*InstanceVariable) TokenLiteral 

func (iv *InstanceVariable) TokenLiteral() string

TokenLiteral returns an empty string

type IntegerLiteral 

type IntegerLiteral struct {
	*BaseNode
	Value int
}

IntegerLiteral contains the node expression and its value

func (*IntegerLiteral) IsIntegerLiteral added in v0.1.8 

func (il *IntegerLiteral) IsIntegerLiteral(t *testing.T) *testableIntegerLiteral

IsIntegerLiteral returns pointer of the receiver integer literal

func (*IntegerLiteral) String 

func (il *IntegerLiteral) String() string

String gets the string format of the Integer type token

func (*IntegerLiteral) TokenLiteral 

func (il *IntegerLiteral) TokenLiteral() string

TokenLiteral is a polymorphic function to return a token literal

type ModuleStatement 

type ModuleStatement struct {
	*BaseNode
	Name       *Constant
	Body       *BlockStatement
	SuperClass *Constant
}

ModuleStatement represents a module node in AST

func (*ModuleStatement) IsModuleStmt added in v0.1.8 

func (ms *ModuleStatement) IsModuleStmt(t *testing.T) *testableModuleStatement

IsModuleStmt returns a pointer of the module statement

func (*ModuleStatement) String 

func (ms *ModuleStatement) String() string

func (*ModuleStatement) TokenLiteral 

func (ms *ModuleStatement) TokenLiteral() string

TokenLiteral is a polymorphic function to return a token literal

type MultiVariableExpression added in v0.1.0 

type MultiVariableExpression struct {
	*BaseNode
	Variables []Expression
}

MultiVariableExpression is not really an expression, it's just a container that holds multiple Variables

func (*MultiVariableExpression) String added in v0.1.0 

func (m *MultiVariableExpression) String() string

func (*MultiVariableExpression) TokenLiteral added in v0.1.0 

func (m *MultiVariableExpression) TokenLiteral() string

TokenLiteral returns an empty string

type NextStatement 

type NextStatement struct {
	*BaseNode
}

NextStatement represents "next" keyword

func (*NextStatement) String 

func (ns *NextStatement) String() string

func (*NextStatement) TokenLiteral 

func (ns *NextStatement) TokenLiteral() string

TokenLiteral is a polymorphic function to return a token literal

type NilExpression 

type NilExpression struct {
	*BaseNode
}

NilExpression represents nil node

func (*NilExpression) String 

func (n *NilExpression) String() string

String returns `nil`

func (*NilExpression) TokenLiteral 

func (n *NilExpression) TokenLiteral() string

TokenLiteral is a polymorphic function to return a token literal "nil"

type PrefixExpression 

type PrefixExpression struct {
	*BaseNode
	Operator string
	Right    Expression
}

PrefixExpression represents an expression with a prefix

func (*PrefixExpression) String 

func (pe *PrefixExpression) String() string

func (*PrefixExpression) TokenLiteral 

func (pe *PrefixExpression) TokenLiteral() string

TokenLiteral is a polymorphic function to return a token literal of prefix

type Program 

type Program struct {
	Statements []Statement
}

Program is the root node of entire AST

func (*Program) FirstStmt added in v0.1.8 

func (p *Program) FirstStmt() TestableStatement

FirstStmt returns program's first statement as a TestStatement

func (*Program) NthStmt added in v0.1.8 

func (p *Program) NthStmt(nth int) TestableStatement

NthStmt returns program's nth statement as a TestStatement

func (*Program) String 

func (p *Program) String() string

func (*Program) TokenLiteral 

func (p *Program) TokenLiteral() string

TokenLiteral returns a token literal of the statement

type RangeExpression 

type RangeExpression struct {
	*BaseNode
	Start Expression
	End   Expression
}

RangeExpression defines the range expression literal which contains the node expression and its start/end value

func (*RangeExpression) String 

func (re *RangeExpression) String() string

RangeExpression.String gets the string format of the Range type token

func (*RangeExpression) TokenLiteral 

func (re *RangeExpression) TokenLiteral() string

TokenLiteral is a polymorphic function to return a token literal for Range

type ReturnStatement 

type ReturnStatement struct {
	*BaseNode
	ReturnValue Expression
}

ReturnStatement represents an expression as a return value

func (*ReturnStatement) IsReturnStmt added in v0.1.8 

func (rs *ReturnStatement) IsReturnStmt(t *testing.T) (trs *testableReturnStatement)

IsReturnStmt returns a pointer of the ReturnStatement

func (*ReturnStatement) String 

func (rs *ReturnStatement) String() string

func (*ReturnStatement) TokenLiteral 

func (rs *ReturnStatement) TokenLiteral() string

TokenLiteral is a polymorphic function to return a token literal

type SelfExpression 

type SelfExpression struct {
	*BaseNode
}

SelfExpression represents a "self" expression

func (*SelfExpression) IsSelfExpression added in v0.1.8 

func (se *SelfExpression) IsSelfExpression(t *testing.T) *testableSelfExpression

IsSelfExpression returns pointer of the receiver self expression

func (*SelfExpression) String 

func (se *SelfExpression) String() string

func (*SelfExpression) TokenLiteral 

func (se *SelfExpression) TokenLiteral() string

TokenLiteral is a polymorphic function to return a token literal for "self"

type Statement 

type Statement interface {
	// contains filtered or unexported methods
}

Statement satisfies "node" and statementNode

type StringLiteral 

type StringLiteral struct {
	*BaseNode
	Value string
}

StringLiteral contains the node expression and its value

func (*StringLiteral) IsStringLiteral added in v0.1.8 

func (sl *StringLiteral) IsStringLiteral(t *testing.T) *testableStringLiteral

IsStringLiteral returns pointer of the receiver string literal

func (*StringLiteral) String 

func (sl *StringLiteral) String() string

TokenLiteral is a polymorphic function to return a token literal

func (*StringLiteral) TokenLiteral 

func (sl *StringLiteral) TokenLiteral() string

TokenLiteral is a polymorphic function to return a token literal

type TestableIdentifierValue added in v0.1.8 

type TestableIdentifierValue string

TestableIdentifierValue for marking a string as an identifier's value for test

type TestableStatement added in v0.1.8 

type TestableStatement interface {
	Statement
	// Test Helpers
	IsClassStmt(t *testing.T) *testableClassStatement
	IsDefStmt(t *testing.T) *testableDefStatement
	IsExpression(t *testing.T) testableExpression
	IsModuleStmt(t *testing.T) *testableModuleStatement
	IsReturnStmt(t *testing.T) *testableReturnStatement
	IsWhileStmt(t *testing.T) *testableWhileStatement
}

TestableStatement holds predicate functions for checking statements

type Variable added in v0.1.0 

type Variable interface {
	ReturnValue() string
	Expression
	// contains filtered or unexported methods
}

Variable interface represents assignable nodes in Goby, currently are Identifier, InstanceVariable and Constant

type WhileStatement 

type WhileStatement struct {
	*BaseNode
	Condition Expression
	Body      *BlockStatement
}

WhileStatement represents a "while" keyword with a block

func (*WhileStatement) IsWhileStmt added in v0.1.8 

func (ws *WhileStatement) IsWhileStmt(t *testing.T) *testableWhileStatement

IsWhileStmt returns the pointer of current while statement

func (*WhileStatement) String 

func (ws *WhileStatement) String() string

func (*WhileStatement) TokenLiteral 

func (ws *WhileStatement) TokenLiteral() string

TokenLiteral is a polymorphic function to return a token literal

type YieldExpression 

type YieldExpression struct {
	*BaseNode
	Arguments []Expression
}

YieldExpression represents a "yield" expression

func (*YieldExpression) IsYieldExpression added in v0.1.8 

func (ye *YieldExpression) IsYieldExpression(t *testing.T) *testableYieldExpression

IsYieldExpression returns pointer of the receiver yield expression

func (*YieldExpression) String 

func (ye *YieldExpression) String() string

func (*YieldExpression) TokenLiteral 

func (ye *YieldExpression) TokenLiteral() string

TokenLiteral is a polymorphic function to return a token literal for "yield"

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