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just for fun: hashCode for expressions

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krasimir
2017-05-11 13:41:41 +00:00
parent c2c95644bd
commit ebb085326e
2 changed files with 9 additions and 0 deletions
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7
src/runtime/java/jpgf.c
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@@ -1388,6 +1388,13 @@ Java_org_grammaticalframework_pgf_Expr_equals(JNIEnv* env, jobject self, jobject
return JNI_FALSE; return JNI_FALSE;
} }
JNIEXPORT jint JNICALL
Java_org_grammaticalframework_pgf_Expr_hashCode(JNIEnv* env, jobject self)
{
PgfExpr e = gu_variant_from_ptr(l2p(get_ref(env, self)));
return pgf_expr_hash(0, e);
}
JNIEXPORT jstring JNICALL JNIEXPORT jstring JNICALL
Java_org_grammaticalframework_pgf_Type_getCategory(JNIEnv* env, jobject self) Java_org_grammaticalframework_pgf_Type_getCategory(JNIEnv* env, jobject self)
{ {

2
src/runtime/java/org/grammaticalframework/pgf/Expr.java
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@@ -102,6 +102,8 @@ public class Expr implements Serializable {
* @return True if the expressions are equal. */ * @return True if the expressions are equal. */
public native boolean equals(Expr e); public native boolean equals(Expr e);
public native int hashCode();
private static native String showExpr(long ref); private static native String showExpr(long ref);
private static native long initStringLit(String s, long pool); private static native long initStringLit(String s, long pool);