pl.gdela.socomo.bytecode.FieldVisitor Maven / Gradle / Ivy

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Core parts of the tool for visualizing and analyzing source code modularity of a single java project.

There is a newer version: 2.3.1

package pl.gdela.socomo.bytecode;

import org.objectweb.asm.Attribute;
import org.objectweb.asm.Opcodes;
import org.objectweb.asm.TypePath;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import static org.objectweb.asm.Type.getType;
import static pl.gdela.socomo.codemap.DepType.ANNOTATED;

class FieldVisitor extends org.objectweb.asm.FieldVisitor {
	private static final Logger log = LoggerFactory.getLogger(FieldVisitor.class);

	private final DependencyCollectorAdapter collector;

	FieldVisitor(DependencyCollectorAdapter collector) {
		super(Opcodes.ASM5);
		this.collector = collector;
	}

	@Override
	public void visitEnd() {
		// to exit member entered in ClassVisitor.visitField()
		collector.exitMember();
	}

	@Override
	public AnnotationVisitor visitAnnotation(String desc, boolean visible) {
		log.trace("annotated with {}", desc);
		collector.markDependency(ANNOTATED, getType(desc));
		return new AnnotationVisitor(collector);
	}

	@Override
	public AnnotationVisitor visitTypeAnnotation(int typeRef, TypePath typePath, String desc, boolean visible) {
		log.trace("annotated type {} with {}", typePath, desc);
		// simplification: actually it is not the field that is annotated, a type used in field signature is annotated
		collector.markDependency(ANNOTATED, getType(desc));
		return new AnnotationVisitor(collector);
	}

	@Override
	public void visitAttribute(Attribute attribute) {
		log.warn("ignoring non-standard attribute {} of class {}", attribute.type, attribute.getClass());
	}
}