Package com.valgolang.frontend.ast

Types

AddExpression

data class AddExpression(lineNumber: Int, expr1: ExpressionNode, expr2: ExpressionNode) : BinaryExpression, ComparableTypes

Add expression

AndExpression

data class AndExpression(lineNumber: Int, expr1: ExpressionNode, expr2: ExpressionNode) : BinaryExpression

And expression

AnimationNode

sealed class AnimationNode : StatementNode

Animation nodeRepresents a node that customises the animation

AnnotationBlockNode

sealed class AnnotationBlockNode : NoRenderAnimationNode

Annotation block nodeRefers to nodes that wrap an annotation block

ArgumentNode

data class ArgumentNode(arguments: List<ExpressionNode>) : ASTNode

Argument nodeArguments passed into method/function calls

AssignLHS

interface AssignLHS

Assign lhsRepresents node that can be on the lhs of an assignment '='

AssignmentNode

data class AssignmentNode(lineNumber: Int, identifier: AssignLHS, expression: ExpressionNode) : CodeNode, DeclarationOrAssignment

Assignment node

ASTNode

open class ASTNode

AST nodeCollectively represents the abstract syntax tree of the program.

BinaryExpression

sealed class BinaryExpression : ExpressionNode

Binary expression

BoolNode

data class BoolNode(lineNumber: Int, value: Boolean) : ExpressionNode

Bool nodeRepresents a boolean value

BoolType

object BoolType : PrimitiveType

BreakNode

data class BreakNode(lineNumber: Int, loopEndLineNumber: Int) : LoopStatementNode

Break node

CastExpressionNode

data class CastExpressionNode(lineNumber: Int, targetType: PrimitiveType, expr: ExpressionNode) : ExpressionNode

Cast expression node

CharNode

data class CharNode(lineNumber: Int, value: Char) : ExpressionNode

Char nodeRepresents a character value

CharType

object CharType : PrimitiveType

CodeNode

abstract class CodeNode(lineNumber: Int) : StatementNode

Code nodeA node that represents a line of code in the input file

CodeTrackingNode

data class CodeTrackingNode(lineNumber: Int, endLineNumber: Int, statements: List<StatementNode>) : NoRenderAnimationNode

Code tracking nodeWraps statements held in a annotation block node.

ComparableTypes

interface ComparableTypes

Comparable types

ConsecutiveStatementNode

data class ConsecutiveStatementNode(stat1: StatementNode, stat2: StatementNode) : StatementNode

Consecutive statement nodeRecursive statement node which wraps two consecutive statements

ContinueNode

data class ContinueNode(lineNumber: Int, loopStartLineNumber: Int) : LoopStatementNode

Continue node

DeclarationNode

data class DeclarationNode(lineNumber: Int, identifier: AssignLHS, expression: ExpressionNode) : CodeNode, DeclarationOrAssignment

Declaration node

DeclarationOrAssignment

interface DeclarationOrAssignment

Declaration or assignment

DivideExpression

data class DivideExpression(lineNumber: Int, expr1: ExpressionNode, expr2: ExpressionNode) : BinaryExpression, ComparableTypes

Divide expression

ElifNode

data class ElifNode(lineNumber: Int, scope: Int, condition: ExpressionNode, statements: List<StatementNode>) : StatementBlock

Elif node

ElseNode

data class ElseNode(lineNumber: Int, scope: Int, statements: List<StatementNode>) : StatementBlock

Else node

EmptyInitialiserNode

object EmptyInitialiserNode : InitialiserNode

EmptyLHS

object EmptyLHS : AssignLHS

EqExpression

data class EqExpression(lineNumber: Int, expr1: ExpressionNode, expr2: ExpressionNode) : BinaryExpression

Eq expression

ErrorType

object ErrorType : Type

ExpressionNode

abstract class ExpressionNode(lineNumber: Int) : CodeNode

Expression nodeRepresents expressions in VAlgoLang

ForStatementNode

data class ForStatementNode(lineNumber: Int, endLineNumber: Int, scope: Int, beginStatement: DeclarationNode, endCondition: ExpressionNode, updateCounter: AssignmentNode, statements: List<StatementNode>) : LoopNode

For statement node

FunctionCallNode

data class FunctionCallNode(lineNumber: Int, functionIdentifier: String, arguments: List<ExpressionNode>) : ExpressionNode

Function call node

FunctionNode

data class FunctionNode(lineNumber: Int, scope: Int, identifier: String, parameters: List<ParameterNode>, statements: List<StatementNode>) : CodeNode

Function nodeRepresents a function declaration

GeExpression

data class GeExpression(lineNumber: Int, expr1: ExpressionNode, expr2: ExpressionNode) : BinaryExpression

Ge expression

GtExpression

data class GtExpression(lineNumber: Int, expr1: ExpressionNode, expr2: ExpressionNode) : BinaryExpression

Gt expression

IdentifierNode

data class IdentifierNode(lineNumber: Int, identifier: String) : ExpressionNode, AssignLHS

Identifier nodeIdentifies a variable

IfStatementNode

data class IfStatementNode(lineNumber: Int, endLineNumber: Int, scope: Int, condition: ExpressionNode, statements: List<StatementNode>, elifs: List<ElifNode>, elseBlock: ElseNode) : StatementBlock

If statement node

InitialiserNode

abstract class InitialiserNode : ASTNode

Initialiser node

LeExpression

data class LeExpression(lineNumber: Int, expr1: ExpressionNode, expr2: ExpressionNode) : BinaryExpression

Le expression

LoopNode

sealed class LoopNode : StatementBlock

Loop node

LoopStatementNode

sealed class LoopStatementNode : CodeNode

Loop statement node

LtExpression

data class LtExpression(lineNumber: Int, expr1: ExpressionNode, expr2: ExpressionNode) : BinaryExpression

Lt expression

MinusExpression

data class MinusExpression(lineNumber: Int, expr: ExpressionNode) : UnaryExpression

Minus expression

MultiplyExpression

data class MultiplyExpression(lineNumber: Int, expr1: ExpressionNode, expr2: ExpressionNode) : BinaryExpression, ComparableTypes

Multiply expression

NeqExpression

data class NeqExpression(lineNumber: Int, expr1: ExpressionNode, expr2: ExpressionNode) : BinaryExpression

Neq expression

NoRenderAnimationNode

sealed class NoRenderAnimationNode : AnimationNode

No render animation nodeAnimation node that should not be rendered in the code block when animated.

NotExpression

data class NotExpression(lineNumber: Int, expr: ExpressionNode) : UnaryExpression

Not expression

NullNode

data class NullNode(lineNumber: Int) : ExpressionNode

Null node

NullType

object NullType : Type

NumberNode

data class NumberNode(lineNumber: Int, double: Double) : ExpressionNode

Number nodeRepresents a number

NumberType

object NumberType : PrimitiveType

OrExpression

data class OrExpression(lineNumber: Int, expr1: ExpressionNode, expr2: ExpressionNode) : BinaryExpression

Or expression

ParameterListNode

data class ParameterListNode(parameters: List<ParameterNode>) : ASTNode

Parameter list nodeList of parameters for functions

ParameterNode

data class ParameterNode(identifier: String, type: Type) : ASTNode

Parameter nodeAn identifier and type representing a parameter of a function

PlusExpression

data class PlusExpression(lineNumber: Int, expr: ExpressionNode) : UnaryExpression

Plus expression

PrimitiveType

sealed class PrimitiveType : Type

Primitive typeA primitive type in VAlgoLang e.g.

ProgramNode

data class ProgramNode(functions: List<FunctionNode>, statements: List<StatementNode>) : ASTNode

Program nodeRoot level AST node that represents the program in its entirety

ReturnNode

data class ReturnNode(lineNumber: Int, expression: ExpressionNode) : CodeNode

Return node

SleepNode

data class SleepNode(lineNumber: Int, sleepTime: ExpressionNode) : NoRenderAnimationNode

Sleep nodeAdds wait to animation

StartCodeTrackingNode

data class StartCodeTrackingNode(lineNumber: Int, isStepInto: Boolean, condition: ExpressionNode) : AnnotationBlockNode

Start code tracking nodeUsed to mark where in the program a stepInto/stepOver starts

StartSpeedChangeNode

data class StartSpeedChangeNode(lineNumber: Int, speedChange: ExpressionNode, condition: ExpressionNode) : AnnotationBlockNode

Start speed change nodeUsed to mark where in the program a speed block starts

StatementBlock

sealed class StatementBlock : CodeNode

Statement block

StatementNode

abstract class StatementNode(lineNumber: Int) : ASTNode

Statement nodeRepresents a statement that constitutes the program

StopCodeTrackingNode

data class StopCodeTrackingNode(lineNumber: Int, isStepInto: Boolean, condition: ExpressionNode) : AnnotationBlockNode

Stop code tracking nodeMarks end of stepInto/stepOver block.

StopSpeedChangeNode

data class StopSpeedChangeNode(lineNumber: Int, condition: ExpressionNode) : AnnotationBlockNode

Stop speed change nodeUsed to mark where in the program a speed block ends

StringNode

data class StringNode(lineNumber: Int, value: String) : ExpressionNode

String nodeRepresents a string value

StringType

object StringType : PrimitiveType

SubtitleAnnotationNode

data class SubtitleAnnotationNode(lineNumber: Int, text: ExpressionNode, duration: ExpressionNode?, condition: ExpressionNode, showOnce: Boolean) : AnnotationBlockNode

Subtitle annotation nodeAdds subtitle to with text to final animation

SubtractExpression

data class SubtractExpression(lineNumber: Int, expr1: ExpressionNode, expr2: ExpressionNode) : BinaryExpression, ComparableTypes

Subtract expression

Type

abstract class Type : ASTNode

TypeRepresents types

UnaryExpression

sealed class UnaryExpression : ExpressionNode

Unary expression

VoidNode

data class VoidNode(lineNumber: Int) : ExpressionNode

Void nodeRepresents a void value e.g.

VoidType

object VoidType : Type

WhileStatementNode

data class WhileStatementNode(lineNumber: Int, endLineNumber: Int, scope: Int, condition: ExpressionNode, statements: List<StatementNode>) : LoopNode

While statement node