org.robovm.compiler.llvm.Landingpad Maven / Gradle / Ivy
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/*
* Copyright (C) 2012 RoboVM AB
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see .
*/
package org.robovm.compiler.llvm;
import java.io.IOException;
import java.io.Writer;
/**
* @author niklas
*
*/
public class Landingpad extends Instruction {
private final Variable result;
private final Constant personalityFn;
private final boolean cleanup;
private final Clause[] clauses;
public Landingpad(Variable result, Constant personalityFn, Clause ... clauses) {
this(result, personalityFn, false, clauses);
}
public Landingpad(Variable result, Constant personalityFn,
boolean cleanup, Clause ... clauses) {
this.result = result;
this.personalityFn = personalityFn;
this.cleanup = cleanup;
this.clauses = new Clause[clauses.length];
System.arraycopy(clauses, 0, this.clauses, 0, clauses.length);
}
@Override
public void write(Writer writer) throws IOException {
writer.write(result.toString());
writer.write(" = landingpad ");
result.getType().write(writer);
writer.write(" personality ");
personalityFn.getType().write(writer);
writer.write(' ');
personalityFn.write(writer);
if (cleanup) {
writer.write(" cleanup");
}
for (Clause clause : clauses) {
writer.write(' ');
clause.write(writer);
}
}
@Override
public String toString() {
return toString(this::write);
}
public interface Clause extends Writable {}
public static class Catch implements Clause {
private final Value value;
public Catch(Value value) {
this.value = value;
}
@Override
public void write(Writer writer) throws IOException {
writer.write("catch ");
value.getType().write(writer);
writer.write(' ');
value.write(writer);
}
@Override
public String toString() {
return toString(this::write);
}
}
public static class Filter implements Clause {
private final ArrayConstant value;
public Filter(ArrayConstant value) {
this.value = value;
}
@Override
public void write(Writer writer) throws IOException {
writer.write("filter ");
value.getType().write(writer);
writer.write(' ');
value.write(writer);
}
@Override
public String toString() {
return toString(this::write);
}
}
}
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