1 files changed, 92 insertions, 0 deletions
diff --git a/src/main/java/org/glavo/javah/NativeMethod.java b/src/main/java/org/glavo/javah/NativeMethod.java
new file mode 100644
index 0000000..1500697
--- /dev/null
+++ b/src/main/java/org/glavo/javah/NativeMethod.java
@@ -0,0 +1,92 @@
+package org.glavo.javah;
+
+import org.objectweb.asm.Opcodes;
+import org.objectweb.asm.Type;
+
+import java.util.Objects;
+import java.util.regex.Matcher;
+
+import static org.glavo.javah.Utils.*;
+
+public final class NativeMethod {
+    private final int access;
+    private final String name;
+    private final Type type;
+    private final String mangledName;
+    private final String longMangledName;
+
+    public static NativeMethod of(String name, String descriptor) {
+        return NativeMethod.of(0, name, descriptor);
+    }
+
+    public static NativeMethod of(String name, Type type) {
+        return NativeMethod.of(0, name, type);
+    }
+
+    public static NativeMethod of(int access, String name, String descriptor) {
+        Objects.requireNonNull(name);
+        Objects.requireNonNull(descriptor);
+        return NativeMethod.of(access, name, Type.getType(descriptor));
+    }
+
+    public static NativeMethod of(int access, String name, Type type) {
+        Objects.requireNonNull(name);
+        Objects.requireNonNull(type);
+        if (!METHOD_NAME_PATTERN.matcher(name).matches()) {
+            throw new IllegalArgumentException(String.format("\"%s\" is not a qualified method name", name));
+        }
+        Matcher m = METHOD_TYPE_PATTERN.matcher(type.toString());
+        if (!m.matches()) {
+            throw new IllegalArgumentException(String.format("\"%s\" is not a method type", type));
+        }
+        return new NativeMethod(access, name, type, m.group("args"));
+    }
+
+    private NativeMethod(int access, String name, Type type, String arguments) {
+        this.access = access;
+        this.name = name;
+        this.type = type;
+        this.mangledName = mangleName(name);
+        this.longMangledName = mangledName + "__" + mangleName(arguments);
+    }
+
+    @Override
+    public boolean equals(Object o) {
+        if (this == o) return true;
+        if (!(o instanceof NativeMethod)) {
+            return false;
+        }
+        NativeMethod that = (NativeMethod) o;
+        return name.equals(that.name) && type.equals(that.type);
+    }
+
+    @Override
+    public int hashCode() {
+        return Objects.hash(name, type);
+    }
+
+    @Override
+    public String toString() {
+        return String.format("NativeMethod[name=%s, type=%s}", name, type);
+    }
+
+    public String name() {
+        return name;
+    }
+
+    public Type type() {
+        return type;
+    }
+
+    public String mangledName() {
+        return mangledName;
+    }
+
+    public String longMangledName() {
+        return longMangledName;
+    }
+
+    public boolean isStatic() {
+        return (access & Opcodes.ACC_STATIC) != 0;
+    }
+}