gololang.ir

Class ExpressionStatement<T extends ExpressionStatement<T>>

java.lang.Object

gololang.ir.GoloElement<T>

gololang.ir.GoloStatement<T>

gololang.ir.ExpressionStatement<T>

Direct Known Subclasses:

AbstractInvocation, BinaryOperation, Block, ClosureReference, CollectionComprehension, CollectionLiteral, ConstantStatement, GoloFunction, MatchExpression, NamedArgument, ReferenceLookup, UnaryOperation

public abstract class ExpressionStatement<T extends ExpressionStatement<T>>
extends GoloStatement<T>

Constructor Summary

Constructors

Constructor and Description
ExpressionStatement()

Method Summary

Modifier and Type	Method and Description
BinaryOperation	call(java.lang.Object... arguments) Creates an binary operation representing the anonymous call on this expression.
void	clearDeclarations() Removes all local declarations.
GoloAssignment<?>[]	declarations() Returns the local declarations of this expression if any.
boolean	hasLocalDeclarations() Checks if this expression has local variable declarations.
static ExpressionStatement<?>	of(java.lang.Object expr) Expression coercion.
T	with(java.lang.Object a) Defines a variable declaration (assignment) local to this expression.

Methods inherited from class gololang.ir.GoloElement

accept, ancestor, ancestor, ancestorOfType, cantConvert, cantReplace, cantReplace, children, children, children, descendants, descendants, descendants, documentation, documentation, doesNotContain, enclosingModule, getLocalReferenceTable, hasParent, hasPosition, inheritedMetadata, makeParentOf, metadata, metadata, next, next, next, ofAST, parent, positionInSourceCode, positionInSourceCode, previous, previous, previous, replaceElement, replaceInParentBy, self, walk

Methods inherited from class java.lang.Object

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

Constructor Detail

ExpressionStatement

public ExpressionStatement()

Method Detail

with

public T with(java.lang.Object a)

Defines a variable declaration (assignment) local to this expression.

declarations

public GoloAssignment<?>[] declarations()

Returns the local declarations of this expression if any.

hasLocalDeclarations

public boolean hasLocalDeclarations()

Checks if this expression has local variable declarations.

clearDeclarations

public void clearDeclarations()

Removes all local declarations.

call

public BinaryOperation call(java.lang.Object... arguments)

Creates an binary operation representing the anonymous call on this expression.

For instance, code such as:

 (|x| -> x + 2)(40)
 

actually creates a BinaryOperation or type OperatorType.ANON_CALL whose first argument is a ClosureReference and the second one a FunctionInvocation holding the argument.

This method ease the creation of such a node. This expression must return a FunctionReference when evaluated. This is not checked.

For instance, in code like

 let f = |x| -> |y| -> x * y
 f(2)(42)
 

the call is an anonymous call between f(2) and (42), and can be generated by:

 call("f").withArgs(constant(2)).call(constant(42))
 

See also the Golo guide.

of

public static ExpressionStatement<?> of(java.lang.Object expr)

Expression coercion.

If the given value is an expression, casts it. If it's a literal value, returns a ConstantStatement. If it's a LocalReference, creates a ReferenceLookup from it.

See Also:

ConstantStatement.isLiteralValue(Object)