java-primitive-array-element-type Function

Summary

Returns the element type of a Java array of a primitive element type.

Package

lw-ji

Signature

java-primitive-array-element-type object => result

Arguments

object⇩

A Java object.

Values

result

A keyword, t or nil.

Description

The function java-primitive-array-element-type returns the element type (as a keyword as listed in 15.1 Types and conversion between Lisp and Java) if object is an array with primitive element type. If object is some other type of Java object, java-primitive-array-element-type returns nil. Otherwise it signals an error.

Notes

1. java-primitive-array-element-type is designed to be fast, so you can use it to test whether a Java object is an array of primitive element type.
2. If you want to check whether object is any array (primitive or not), use java-array-element-type instead, Sometimes java-object-array-element-type may be more convenient.

See also

java-array-element-type
java-object-array-element-type
15.4 Working with Java arrays