import org.gradle.api.Action;
import org.gradle.nativeplatform.toolchain.GccCommandLineToolConfiguration;
import org.gradle.nativeplatform.toolchain.internal.ToolType;

import java.util.List;

public interface GccCommandLineToolConfigurationInternal extends GccCommandLineToolConfiguration {

    ToolType getToolType();

    Action<List<String>> getArgAction();

    }

    @Nullable
    @Override
    public GccCommandLineToolConfigurationInternal getTool(ToolType toolType) {
        return tools.get(toolType);
    }

    public Collection<GccCommandLineToolConfigurationInternal> getTools() {
        return tools.values();
    }

    public Collection<GccCommandLineToolConfigurationInternal> getCompilers() {

import org.gradle.api.NonNullApi;
import org.gradle.nativeplatform.toolchain.internal.ToolType;

import javax.annotation.Nullable;

@NonNullApi
public interface ToolRegistry {
    @Nullable
    GccCommandLineToolConfigurationInternal getTool(ToolType toolType);

import org.gradle.nativeplatform.toolchain.internal.ToolType;

public class DefaultGccCommandLineToolConfiguration extends DefaultCommandLineToolConfiguration implements GccCommandLineToolConfigurationInternal {
    private String executable;

    public DefaultGccCommandLineToolConfiguration(ToolType toolType, String defaultExecutable) {
        super(toolType);
        this.executable = defaultExecutable;