From b0a74ddc59ef008f855784ca78dddd0cc31bd79d Mon Sep 17 00:00:00 2001
From: "kr.angelov" <kr.angelov@gmail.com>
Date: Wed, 27 Nov 2013 12:35:11 +0000
Subject: added API in the C runtime and the Java binding for checking whether
 a given function is linearizable in a given language. This is used in the
 Android UI for better vizualizations

---
 src/runtime/c/pgf/pgf.c                            |  8 +++++++
 src/runtime/c/pgf/pgf.h                            | 27 +++-------------------
 src/runtime/java/jpgf.c                            | 11 +++++++++
 .../java/org/grammaticalframework/pgf/Concr.java   |  2 ++
 4 files changed, 24 insertions(+), 24 deletions(-)

(limited to 'src/runtime')

diff --git a/src/runtime/c/pgf/pgf.c b/src/runtime/c/pgf/pgf.c
index b9f555978..155b93135 100644
--- a/src/runtime/c/pgf/pgf.c
+++ b/src/runtime/c/pgf/pgf.c
@@ -158,3 +158,11 @@ pgf_print_name(PgfConcr* concr, PgfCId id)
 		name = id;
 	return name;
 }
+
+bool
+pgf_has_linearization(PgfConcr* concr, PgfCId id)
+{
+	PgfCncOverloadMap* overl_table =
+		gu_map_get(concr->fun_indices, id, PgfCncOverloadMap*);
+	return (overl_table != NULL);
+}
diff --git a/src/runtime/c/pgf/pgf.h b/src/runtime/c/pgf/pgf.h
index 606cb9940..20e6b1fa8 100644
--- a/src/runtime/c/pgf/pgf.h
+++ b/src/runtime/c/pgf/pgf.h
@@ -1,27 +1,3 @@
-/* 
- * Copyright 2010 University of Gothenburg.
- *   
- * This file is part of libpgf.
- * 
- * Libpgf is free software: you can redistribute it and/or modify it under
- * the terms of the GNU Lesser General Public License as published by the
- * Free Software Foundation, either version 3 of the License, or (at your
- * option) any later version.
- * 
- * Libpgf 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 Lesser General Public
- * License for more details.
- * 
- * You should have received a copy of the GNU Lesser General Public
- * License along with libpgf. If not, see <http://www.gnu.org/licenses/>.
- */
-
-/** @file
- *
- * The public libpgf API.
- */
-
 #ifndef PGF_H_
 #define PGF_H_
 
@@ -114,6 +90,9 @@ pgf_function_type(PgfPGF* pgf, PgfCId funname);
 GuString
 pgf_print_name(PgfConcr*, PgfCId id);
 
+bool
+pgf_has_linearization(PgfConcr* concr, PgfCId id);
+
 void
 pgf_linearize(PgfConcr* concr, PgfExpr expr, GuOut* out, GuExn* err);
 
diff --git a/src/runtime/java/jpgf.c b/src/runtime/java/jpgf.c
index d70301a62..8cfe2c705 100644
--- a/src/runtime/java/jpgf.c
+++ b/src/runtime/java/jpgf.c
@@ -472,6 +472,17 @@ Java_org_grammaticalframework_pgf_Concr_lookupMorpho(JNIEnv* env, jobject self,
 	return analyses;
 }
 
+JNIEXPORT jboolean JNICALL
+Java_org_grammaticalframework_pgf_Concr_hasLinearization(JNIEnv* env, jobject self, jstring jid)
+{
+	PgfConcr* concr = get_ref(env, self);
+	GuPool* tmp_pool = gu_new_pool();
+	PgfCId id = j2gu_string(env, jid, tmp_pool);
+	bool res = pgf_has_linearization(concr, id);
+	gu_pool_free(tmp_pool);
+	return res;
+}
+
 JNIEXPORT void JNICALL 
 Java_org_grammaticalframework_pgf_Pool_free(JNIEnv* env, jobject self, jlong ref)
 {
diff --git a/src/runtime/java/org/grammaticalframework/pgf/Concr.java b/src/runtime/java/org/grammaticalframework/pgf/Concr.java
index 81f696aaf..779d461cc 100644
--- a/src/runtime/java/org/grammaticalframework/pgf/Concr.java
+++ b/src/runtime/java/org/grammaticalframework/pgf/Concr.java
@@ -25,6 +25,8 @@ public class Concr {
 
 	public native List<MorphoAnalysis> lookupMorpho(String sentence);
 
+	public native boolean hasLinearization(String id);
+
 	//////////////////////////////////////////////////////////////////
 	// private stuff
 	
-- 
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