Added machine plugin project to repository

[Mograsim.git] / net.mograsim.machine / src / net / mograsim / machine / isa / AsmLabel.java

diff --git a/net.mograsim.machine/src/net/mograsim/machine/isa/AsmLabel.java b/net.mograsim.machine/src/net/mograsim/machine/isa/AsmLabel.java
new file mode 100644 (file)
index 0000000..ddb5658
--- /dev/null
+++ b/net.mograsim.machine/src/net/mograsim/machine/isa/AsmLabel.java
@@ -0,0 +1,49 @@
+package net.mograsim.machine.isa;
+
+import java.util.Objects;
+
+public final class AsmLabel implements AsmElement
+{
+       private final String name;
+       private AsmInstruction inst;
+
+       public AsmLabel(String name)
+       {
+               this.name = Objects.requireNonNull(name);
+       }
+
+       public String getName()
+       {
+               return name;
+       }
+
+       public void setInst(AsmInstruction inst)
+       {
+               if (inst != null)
+                       throw new IllegalStateException("Instrution already set for " + name);
+               this.inst = inst;
+       }
+
+       @Override
+       public String toString()
+       {
+               return name + ":";
+       }
+
+       @Override
+       public int hashCode()
+       {
+               return Objects.hash(inst, name);
+       }
+
+       @Override
+       public boolean equals(Object obj)
+       {
+               if (this == obj)
+                       return true;
+               if (!(obj instanceof AsmLabel))
+                       return false;
+               AsmLabel other = (AsmLabel) obj;
+               return Objects.equals(inst, other.inst) && Objects.equals(name, other.name);
+       }
+}