Method gatherArgs

src/main/java/matcher/type/MethodInstance.java:64–123

(MethodInstance method, String desc, MethodNode asmNode)

	}

	private static MethodVarInstance[] gatherArgs(MethodInstance method, String desc, MethodNode asmNode) {
		Type[] argTypes = Type.getArgumentTypes(desc);
		if (argTypes.length == 0) return emptyVars;

		MethodVarInstance[] args = new MethodVarInstance[argTypes.length];
		List<LocalVariableNode> locals;
		InsnList il;
		AbstractInsnNode firstInsn;

		if (asmNode != null) {
			locals = asmNode.localVariables;
			il = asmNode.instructions;
			firstInsn = il.getFirst();
		} else {
			locals = null;
			il = null;
			firstInsn = null;
		}

		int lvIdx = method.isStatic ? 0 : 1;

		for (int i = 0; i < argTypes.length; i++) {
			Type asmType = argTypes[i];
			ClassInstance type = method.cls.getEnv().getCreateClassInstance(asmType.getDescriptor());
			int asmIndex = -1;
			int startInsn = -1;
			int endInsn = -1;
			String name = null;

			if (locals != null) {
				for (int j = 0; j < locals.size(); j++) {
					LocalVariableNode n = locals.get(j);

					if (n.index == lvIdx && n.start == firstInsn) {
						assert n.desc.equals(type.id);

						asmIndex = j;
						startInsn = il.indexOf(n.start);
						endInsn = il.indexOf(n.end);
						name = n.name;

						break;
					}
				}
			}

			MethodVarInstance arg = new MethodVarInstance(method, true, i, lvIdx, asmIndex,
					type, startInsn, endInsn, 0,
					name,
					name == null || method.nameObfuscatedLocal || method.cls.nameObfuscated || !Util.isValidJavaIdentifier(name));
			args[i] = arg;

			method.classRefs.add(type);
			type.methodTypeRefs.add(method);

			lvIdx += type.getSlotSize();
		}