Package icyllis.arc3d.compiler.tree

Class Expression

java.lang.Object

icyllis.arc3d.compiler.tree.Node

icyllis.arc3d.compiler.tree.Expression

Direct Known Subclasses:

BinaryExpression, ConditionalExpression, ConstructorCall, FieldAccess, FunctionCall, FunctionReference, IndexExpression, Literal, Poison, PostfixExpression, PrefixExpression, Swizzle, TypeReference, VariableReference

@NullMarked
public abstract class Expression
extends Node

Abstract superclass of all expressions.

Nested Class Summary

Nested classes/interfaces inherited from class icyllis.arc3d.compiler.tree.Node

Node.ElementKind, Node.ExpressionKind, Node.StatementKind, Node.SymbolKind

Field Summary

Fields inherited from class icyllis.arc3d.compiler.tree.Node

mPosition

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	Expression(int position, Type type)

Method Summary

Modifier and Type	Method	Description
final boolean	accept(@NonNull TreeVisitor visitor)	Visit this AST with a given visitor.
final Expression	copy()	Returns a deep copy at the same position.
abstract Expression	copy(int position)
final long	getCoercionCost(Type other)
OptionalDouble	getConstantValue(int i)	Returns the i'th compile-time constant value within a literal or constructor.
abstract Node.ExpressionKind	getKind()
final Type	getType()
final boolean	isBooleanLiteral()
boolean	isConstructorCall()
final boolean	isFloatLiteral()
final boolean	isIncomplete(Context context)	Returns true if this expression is incomplete.
final boolean	isIntLiteral()
boolean	isLiteral()
final String	toString()	Returns a description of the expression.
abstract String	toString(int parentPrecedence)

Methods inherited from class icyllis.arc3d.compiler.tree.Node

getEndOffset, getStartOffset

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Details

Expression

protected Expression(int position,
 Type type)

Method Details

getKind

public abstract Node.ExpressionKind getKind()

See Also:

• Node.ExpressionKind

accept

public final boolean accept(@NonNull TreeVisitor visitor)

Description copied from class: Node

Visit this AST with a given visitor.

Specified by:

accept in class Node

Returns:

true to stop recursion and propagate true up the stack, false to continue

getType

public final Type getType()

isConstructorCall

public boolean isConstructorCall()

isLiteral

public boolean isLiteral()

isIntLiteral

public final boolean isIntLiteral()

isFloatLiteral

public final boolean isFloatLiteral()

isBooleanLiteral

public final boolean isBooleanLiteral()

getCoercionCost

public final long getCoercionCost(Type other)

See Also:

• Type.CoercionCost

isIncomplete

public final boolean isIncomplete(Context context)

Returns true if this expression is incomplete. Specifically, dangling function/method-call references that were never invoked, or type references that were never constructed, are considered incomplete expressions and should result in an error.

getConstantValue

public OptionalDouble getConstantValue(int i)

Returns the i'th compile-time constant value within a literal or constructor. Indices which do not contain compile-time constant values will return empty. `vec4(1, vec2(2), 3)` contains four compile-time constants: (1, 2, 2, 3) `mat2(f)` contains four slots, and two are constant: (empty, 0, 0, empty)

copy

public final Expression copy()

Returns a deep copy at the same position.

copy

public abstract Expression copy(int position)

toString

public final String toString()

Returns a description of the expression.

Specified by:

toString in class Node

Returns:

a string representation of this AST node

toString

public abstract String toString(int parentPrecedence)