--- /dev/null
+package org.simantics.structural2.scl;\r
+\r
+import java.util.Collections;\r
+import java.util.Map;\r
+\r
+import org.simantics.databoard.Bindings;\r
+import org.simantics.db.ReadGraph;\r
+import org.simantics.db.Resource;\r
+import org.simantics.db.common.procedure.adapter.TransientCacheListener;\r
+import org.simantics.db.common.request.ResourceRead2;\r
+import org.simantics.db.exception.DatabaseException;\r
+import org.simantics.db.layer0.scl.AbstractExpressionCompilationContext;\r
+import org.simantics.db.layer0.scl.AbstractExpressionCompilationRequest;\r
+import org.simantics.db.layer0.util.RuntimeEnvironmentRequest;\r
+import org.simantics.db.layer0.variable.Variable;\r
+import org.simantics.layer0.Layer0;\r
+import org.simantics.scl.compiler.elaboration.expressions.EApply;\r
+import org.simantics.scl.compiler.elaboration.expressions.EConstant;\r
+import org.simantics.scl.compiler.elaboration.expressions.EVariable;\r
+import org.simantics.scl.compiler.elaboration.expressions.Expression;\r
+import org.simantics.scl.compiler.elaboration.modules.SCLValue;\r
+import org.simantics.scl.compiler.environment.Environment;\r
+import org.simantics.scl.compiler.environment.Environments;\r
+import org.simantics.scl.compiler.runtime.RuntimeEnvironment;\r
+import org.simantics.scl.compiler.top.SCLExpressionCompilationException;\r
+import org.simantics.scl.compiler.types.Type;\r
+import org.simantics.structural2.scl.AbstractCompileStructuralValueRequest.CompilationContext;\r
+\r
+/**\r
+ * Compiles an SCL expression that is attached to a literal\r
+ * whose parent is a component that is a part of a component type.\r
+ * \r
+ * @author Antti Villberg\r
+ */\r
+abstract public class AbstractCompileStructuralValueRequest extends AbstractExpressionCompilationRequest<CompilationContext, Variable> {\r
+ \r
+ protected final Resource relation;\r
+ \r
+ public static class CompilationContext extends AbstractExpressionCompilationContext {\r
+ public final Map<String, ComponentTypeProperty> propertyMap;\r
+ \r
+ public CompilationContext(RuntimeEnvironment runtimeEnvironment,\r
+ Map<String, ComponentTypeProperty> propertyMap) {\r
+ super(runtimeEnvironment);\r
+ this.propertyMap = propertyMap;\r
+ }\r
+ }\r
+ \r
+ public AbstractCompileStructuralValueRequest(Resource relation) {\r
+ this.relation = relation;\r
+ }\r
+\r
+ @Override\r
+ abstract protected String getExpressionText(ReadGraph graph) throws DatabaseException;\r
+ abstract protected Resource getIndexRoot(ReadGraph graph) throws DatabaseException;\r
+ abstract protected Resource getComponentType(ReadGraph graph) throws DatabaseException;\r
+ \r
+ @Override\r
+ protected Type getExpectedType(ReadGraph graph, CompilationContext context)\r
+ throws DatabaseException {\r
+ Layer0 L0 = Layer0.getInstance(graph);\r
+ String valueType = graph.getPossibleRelatedValue(relation, L0.RequiresValueType, Bindings.STRING);\r
+ if(valueType != null) {\r
+ try {\r
+ return Environments.getType(context.runtimeEnvironment.getEnvironment(), valueType);\r
+ } catch (SCLExpressionCompilationException e) {\r
+ e.printStackTrace();\r
+ }\r
+ }\r
+ return super.getExpectedType(graph, context);\r
+ }\r
+ \r
+ \r
+\r
+ @Override\r
+ protected CompilationContext getCompilationContext(ReadGraph graph)\r
+ throws DatabaseException {\r
+ Resource indexRoot = getIndexRoot(graph);\r
+ Resource componentType = getComponentType(graph);\r
+ if(componentType == null) {\r
+ RuntimeEnvironment runtimeEnvironment = graph.syncRequest(new RuntimeEnvironmentRequest(indexRoot));\r
+ return new CompilationContext(runtimeEnvironment, Collections.<String,ComponentTypeProperty>emptyMap());\r
+ } else {\r
+ return graph.syncRequest(new ResourceRead2<CompilationContext>(componentType, indexRoot) {\r
+ @Override\r
+ public CompilationContext perform(ReadGraph graph)\r
+ throws DatabaseException {\r
+ RuntimeEnvironment runtimeEnvironment = graph.syncRequest(new RuntimeEnvironmentRequest(resource2));\r
+ Map<String, ComponentTypeProperty> propertyMap =\r
+ graph.syncRequest(new ReadComponentTypeInterfaceRequest(resource, runtimeEnvironment.getEnvironment()),\r
+ TransientCacheListener.<Map<String, ComponentTypeProperty>>instance());\r
+ return new CompilationContext(runtimeEnvironment, propertyMap);\r
+ }\r
+ });\r
+ }\r
+ }\r
+\r
+ @Override\r
+ protected Type getContextVariableType() {\r
+ return VARIABLE; \r
+ }\r
+\r
+ protected static Expression accessInputVariable(Environment environment,\r
+ org.simantics.scl.compiler.elaboration.expressions.Variable contextVariable) {\r
+ SCLValue variableParentFunction = environment.getValue(VARIABLE_PARENT);\r
+ return new EApply(new EConstant(variableParentFunction),\r
+ new EApply(new EConstant(variableParentFunction),\r
+ new EVariable(contextVariable)));\r
+ }\r
+ \r
+ @Override\r
+ protected Expression getVariableAccessExpression(\r
+ ReadGraph graph,\r
+ CompilationContext context,\r
+ org.simantics.scl.compiler.elaboration.expressions.Variable contextVariable,\r
+ String name) throws DatabaseException {\r
+ ComponentTypeProperty property = context.propertyMap.get(name);\r
+ if(property != null) {\r
+ Environment environment = context.runtimeEnvironment.getEnvironment();\r
+ return getPropertyFlexible(environment,\r
+ accessInputVariable(environment, contextVariable),\r
+ name,\r
+ property.type);\r
+ }\r
+ else if(name.equals("input")) {\r
+ Environment environment = context.runtimeEnvironment.getEnvironment();\r
+ return accessInputVariable(environment, contextVariable);\r
+ }\r
+ else if(name.equals("self"))\r
+ return new EVariable(contextVariable);\r
+ else\r
+ return null;\r
+ }\r
+ \r
+}\r