ast

Documentation

Overview

Licensed under the Apache License, Version 2.0 (the "License"); you may not use p file except in compliance with the License. You may obtain a copy of the License at

http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.

Index

• type ArrayLiteral
  • func (al *ArrayLiteral) String() string
  • func (al *ArrayLiteral) TokenLiteral() string
• type BlockStatement
  • func (bs *BlockStatement) String() string
  • func (bs *BlockStatement) TokenLiteral() string
• type Boolean
  • func (b *Boolean) String() string
  • func (b *Boolean) TokenLiteral() string
• type CallExpression
  • func (ce *CallExpression) String() string
  • func (ce *CallExpression) TokenLiteral() string
• type Expression
• type ExpressionStatement
  • func (es *ExpressionStatement) String() string
  • func (es *ExpressionStatement) TokenLiteral() string
• type FunctionLiteral
  • func (fl *FunctionLiteral) String() string
  • func (fl *FunctionLiteral) TokenLiteral() string
• type HashLiteral
  • func (hl *HashLiteral) String() string
  • func (hl *HashLiteral) TokenLiteral() string
• type Identifier
  • func (i *Identifier) String() string
  • func (i *Identifier) TokenLiteral() string
• type IfExpression
  • func (ie *IfExpression) String() string
  • func (ie *IfExpression) TokenLiteral() string
• type IndexExpression
  • func (ie *IndexExpression) String() string
  • func (ie *IndexExpression) TokenLiteral() string
• type InfixExpression
  • func (oe *InfixExpression) String() string
  • func (oe *InfixExpression) TokenLiteral() string
• type IntegerLiteral
  • func (il *IntegerLiteral) String() string
  • func (il *IntegerLiteral) TokenLiteral() string
• type LetStatement
  • func (ls *LetStatement) String() string
  • func (ls *LetStatement) TokenLiteral() string
• type Node
• type PrefixExpression
  • func (pe *PrefixExpression) String() string
  • func (pe *PrefixExpression) TokenLiteral() string
• type Program
  • func (p *Program) String() string
  • func (p *Program) TokenLiteral() string
• type ReturnStatement
  • func (rs *ReturnStatement) String() string
  • func (rs *ReturnStatement) TokenLiteral() string
• type Statement
• type StringLiteral
  • func (sl *StringLiteral) String() string
  • func (sl *StringLiteral) TokenLiteral() string

Types

type ArrayLiteral

type ArrayLiteral struct {
	Token    token.Token // the '[' token
	Elements []Expression
}

func (*ArrayLiteral) String

func (al *ArrayLiteral) String() string

func (*ArrayLiteral) TokenLiteral

func (al *ArrayLiteral) TokenLiteral() string

type BlockStatement

type BlockStatement struct {
	Token      token.Token // the { token
	Statements []Statement
}

func (*BlockStatement) String

func (bs *BlockStatement) String() string

func (*BlockStatement) TokenLiteral

func (bs *BlockStatement) TokenLiteral() string

type Boolean

type Boolean struct {
	Token token.Token
	Value bool
}

func (*Boolean) String

func (b *Boolean) String() string

func (*Boolean) TokenLiteral

func (b *Boolean) TokenLiteral() string

type CallExpression

type CallExpression struct {
	Token     token.Token // The '(' token
	Function  Expression  // Identifier or FunctionLiteral
	Arguments []Expression
}

func (*CallExpression) String

func (ce *CallExpression) String() string

func (*CallExpression) TokenLiteral

func (ce *CallExpression) TokenLiteral() string

type Expression

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

All expression nodes implement this

type ExpressionStatement

type ExpressionStatement struct {
	Token      token.Token // the first token of the expression
	Expression Expression
}

func (*ExpressionStatement) String

func (es *ExpressionStatement) String() string

func (*ExpressionStatement) TokenLiteral

func (es *ExpressionStatement) TokenLiteral() string

type FunctionLiteral

type FunctionLiteral struct {
	Token      token.Token // The 'fn' token
	Parameters []*Identifier
	Body       *BlockStatement
}

func (*FunctionLiteral) String

func (fl *FunctionLiteral) String() string

func (*FunctionLiteral) TokenLiteral

func (fl *FunctionLiteral) TokenLiteral() string

type HashLiteral

type HashLiteral struct {
	Token token.Token // the '{' token
	Pairs map[Expression]Expression
}

func (*HashLiteral) String

func (hl *HashLiteral) String() string

func (*HashLiteral) TokenLiteral

func (hl *HashLiteral) TokenLiteral() string

type Identifier

type Identifier struct {
	Token token.Token // the token.IDENT token
	Value string
}

Expressions

func (*Identifier) String

func (i *Identifier) String() string

func (*Identifier) TokenLiteral

func (i *Identifier) TokenLiteral() string

type IfExpression

type IfExpression struct {
	Token       token.Token // The 'if' token
	Condition   Expression
	Consequence *BlockStatement
	Alternative *BlockStatement
}

func (*IfExpression) String

func (ie *IfExpression) String() string

func (*IfExpression) TokenLiteral

func (ie *IfExpression) TokenLiteral() string

type IndexExpression

type IndexExpression struct {
	Token token.Token // The [ token
	Left  Expression
	Index Expression
}

func (*IndexExpression) String

func (ie *IndexExpression) String() string

func (*IndexExpression) TokenLiteral

func (ie *IndexExpression) TokenLiteral() string

type InfixExpression

type InfixExpression struct {
	Token    token.Token // The operator token, e.g. +
	Left     Expression
	Operator string
	Right    Expression
}

func (*InfixExpression) String

func (oe *InfixExpression) String() string

func (*InfixExpression) TokenLiteral

func (oe *InfixExpression) TokenLiteral() string

type IntegerLiteral

type IntegerLiteral struct {
	Token token.Token
	Value int64
}

func (*IntegerLiteral) String

func (il *IntegerLiteral) String() string

func (*IntegerLiteral) TokenLiteral

func (il *IntegerLiteral) TokenLiteral() string

type LetStatement

type LetStatement struct {
	Token token.Token // the token.LET token
	Name  *Identifier
	Value Expression
}

Statements

func (*LetStatement) String

func (ls *LetStatement) String() string

func (*LetStatement) TokenLiteral

func (ls *LetStatement) TokenLiteral() string

type Node

type Node interface {
	TokenLiteral() string
	String() string
}

The base Node interface

type PrefixExpression

type PrefixExpression struct {
	Token    token.Token // The prefix token, e.g. !
	Operator string
	Right    Expression
}

func (*PrefixExpression) String

func (pe *PrefixExpression) String() string

func (*PrefixExpression) TokenLiteral

func (pe *PrefixExpression) TokenLiteral() string

type Program

type Program struct {
	Statements []Statement
}

func (*Program) String

func (p *Program) String() string

func (*Program) TokenLiteral

func (p *Program) TokenLiteral() string

type ReturnStatement

type ReturnStatement struct {
	Token       token.Token // the 'return' token
	ReturnValue Expression
}

func (*ReturnStatement) String

func (rs *ReturnStatement) String() string

func (*ReturnStatement) TokenLiteral

func (rs *ReturnStatement) TokenLiteral() string

type Statement

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

All statement nodes implement this

type StringLiteral

type StringLiteral struct {
	Token token.Token
	Value string
}

func (*StringLiteral) String

func (sl *StringLiteral) String() string

func (*StringLiteral) TokenLiteral

func (sl *StringLiteral) TokenLiteral() string