org.eolang.maven.UnphiMojo Maven / Gradle / Ivy
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package org.eolang.maven;
import com.jcabi.log.Logger;
import com.jcabi.xml.XML;
import com.yegor256.xsline.Shift;
import com.yegor256.xsline.TrClasspath;
import com.yegor256.xsline.Train;
import com.yegor256.xsline.Xsline;
import java.io.File;
import java.nio.file.Path;
import java.nio.file.Paths;
import java.util.List;
import java.util.Set;
import java.util.concurrent.CopyOnWriteArrayList;
import org.apache.maven.plugins.annotations.LifecyclePhase;
import org.apache.maven.plugins.annotations.Mojo;
import org.apache.maven.plugins.annotations.Parameter;
import org.cactoos.iterable.IterableEnvelope;
import org.cactoos.iterable.Joined;
import org.cactoos.iterable.Mapped;
import org.cactoos.set.SetOf;
import org.cactoos.text.TextOf;
import org.eolang.maven.util.HmBase;
import org.eolang.maven.util.Home;
import org.eolang.maven.util.Threaded;
import org.eolang.maven.util.Walk;
import org.eolang.parser.PhiSyntax;
import org.eolang.parser.TrStepped;
import org.xembly.Directive;
import org.xembly.Directives;
/**
* Read PHI files and parse them to the XMIR.
* @since 0.34.0
*/
@Mojo(
name = "phi-to-xmir",
defaultPhase = LifecyclePhase.PROCESS_SOURCES,
threadSafe = true
)
public final class UnphiMojo extends SafeMojo {
/**
* Unphi transformations.
*/
private static final Train TRANSFORMATIONS = new TrStepped(
new TrClasspath<>(
"/org/eolang/maven/unphi/wrap-bytes.xsl",
"/org/eolang/maven/unphi/normalize-bytes.xsl",
"/org/eolang/parser/wrap-method-calls.xsl",
"/org/eolang/maven/unphi/atoms-with-bound-attrs.xsl"
).back()
);
/**
* The directory where to take phi files for parsing from.
* @checkstyle MemberNameCheck (10 lines)
*/
@Parameter(
property = "eo.unphiInputDir",
required = true,
defaultValue = "${project.build.directory}/eo/phi"
)
private File unphiInputDir;
/**
* The directory where to save xmir files to.
* @checkstyle MemberNameCheck (10 lines)
*/
@Parameter(
property = "eo.unphiOutputDir",
required = true,
defaultValue = "${project.build.directory}/eo/1-parse"
)
private File unphiOutputDir;
/**
* Extra metas to add to unphied XMIR.
* @checkstyle MemberNameCheck (10 lines)
*/
@SuppressWarnings("PMD.ImmutableField")
@Parameter(property = "eo.unphiMetas")
private Set unphiMetas = new SetOf<>();
@Override
public void exec() {
final List errors = new CopyOnWriteArrayList<>();
final Home home = new HmBase(this.unphiOutputDir);
final Iterable metas = new UnphiMojo.Metas(this.unphiMetas);
final Xsline xsline = new Xsline(this.measured(UnphiMojo.TRANSFORMATIONS));
final long start = System.currentTimeMillis();
final int count = new Threaded<>(
new Walk(this.unphiInputDir.toPath()),
phi -> {
final Path relative = this.unphiInputDir.toPath().relativize(phi);
final Path xmir = Paths.get(
relative.toString().replace(
String.format(".%s", PhiMojo.EXT),
String.format(".%s", AssembleMojo.XMIR)
)
);
final XML result = xsline.pass(
new PhiSyntax(
phi.getFileName().toString().replace(".phi", ""),
new TextOf(phi),
metas
).parsed()
);
home.save(result.toString(), xmir);
Logger.debug(
this,
"Parsed to xmir: %[file]s -> %[file]s",
phi, this.unphiOutputDir.toPath().resolve(xmir)
);
final List here = result.xpath("//errors/error/text()");
if (!here.isEmpty()) {
errors.add(
Logger.format(
"%[file]s:\n\t%s\n",
xmir,
String.join("\n\t", here)
)
);
}
return 1;
}
).total();
Logger.info(
this,
"Parsed %d phi files to xmir in %[ms]s",
count, System.currentTimeMillis() - start
);
if (!errors.isEmpty()) {
throw new IllegalStateException(
String.format(
"%d files with parsing errors were found:\n%s",
errors.size(),
String.join("\n", errors)
)
);
}
}
/**
* Accumulates all metas that should be attached to unphied XMIR.
* +package meta is prohibited since it's converted to special object
* with "λ -> Package" binding.
* @since 0.36.0
*/
private static class Metas extends IterableEnvelope {
/**
* Package meta.
*/
private static final String PACKAGE = "package";
/**
* Ctor.
* @param metas Metas to append
*/
Metas(final Iterable metas) {
super(
new Joined<>(
new Mapped<>(
meta -> {
final String[] pair = meta.split(" ", 2);
final String head = pair[0].substring(1);
if (UnphiMojo.Metas.PACKAGE.equals(head)) {
throw new IllegalStateException(
"+package meta is prohibited for attaching to unphied XMIR"
);
}
final Directives dirs = new Directives()
.xpath("/program")
.addIf("metas")
.add("meta")
.add("head").set(head).up()
.add("tail");
if (pair.length > 1) {
dirs.set(pair[1].trim()).up();
for (final String part : pair[1].trim().split(" ")) {
dirs.add("part").set(part).up();
}
} else {
dirs.up();
}
return dirs.up();
},
metas
)
)
);
}
}
}
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