-package org.simantics.scl.compiler.elaboration.expressions;\r
-\r
-import gnu.trove.map.hash.TObjectIntHashMap;\r
-import gnu.trove.set.hash.THashSet;\r
-import gnu.trove.set.hash.TIntHashSet;\r
-\r
-import org.simantics.scl.compiler.common.exceptions.InternalCompilerError;\r
-import org.simantics.scl.compiler.elaboration.contexts.ReplaceContext;\r
-import org.simantics.scl.compiler.elaboration.contexts.SimplificationContext;\r
-import org.simantics.scl.compiler.elaboration.contexts.TranslationContext;\r
-import org.simantics.scl.compiler.elaboration.contexts.TypingContext;\r
-import org.simantics.scl.compiler.elaboration.query.QExists;\r
-import org.simantics.scl.compiler.elaboration.query.Query;\r
-import org.simantics.scl.compiler.elaboration.query.compilation.QueryCompilationContext;\r
-import org.simantics.scl.compiler.elaboration.query.compilation.QueryCompilationMode;\r
-import org.simantics.scl.compiler.elaboration.query.compilation.UnsolvableQueryException;\r
-import org.simantics.scl.compiler.errors.Locations;\r
-import org.simantics.scl.compiler.internal.elaboration.utils.ExpressionDecorator;\r
-import org.simantics.scl.compiler.types.Type;\r
-import org.simantics.scl.compiler.types.Types;\r
-import org.simantics.scl.compiler.types.exceptions.MatchException;\r
-import org.simantics.scl.compiler.types.exceptions.UnificationException;\r
-import org.simantics.scl.compiler.types.kinds.Kinds;\r
-\r
-public class EWhen extends SimplifiableExpression {\r
-\r
- public Query query;\r
- public Expression action;\r
- Variable[] variables;\r
- \r
- public EWhen(Query query, Expression action) {\r
- this.query = query;\r
- this.action = action;\r
- }\r
- \r
- public EWhen(long location, Query query, Expression action, Variable[] variables) {\r
- if(variables == null)\r
- throw new NullPointerException();\r
- if(location == Locations.NO_LOCATION)\r
- new Exception().printStackTrace();\r
- this.location = location;\r
- this.query = query;\r
- this.action = action;\r
- this.variables = variables;\r
- }\r
-\r
- @Override\r
- public void collectRefs(TObjectIntHashMap<Object> allRefs,\r
- TIntHashSet refs) {\r
- query.collectRefs(allRefs, refs);\r
- action.collectRefs(allRefs, refs);\r
- }\r
-\r
- @Override\r
- public void collectVars(TObjectIntHashMap<Variable> allVars,\r
- TIntHashSet vars) {\r
- query.collectVars(allVars, vars);\r
- action.collectVars(allVars, vars);\r
- }\r
- \r
- @Override\r
- public void collectEffects(THashSet<Type> effects) {\r
- throw new InternalCompilerError(location, getClass().getSimpleName() + " does not support collectEffects.");\r
- }\r
-\r
- @Override\r
- protected void updateType() throws MatchException {\r
- setType(Types.UNIT);\r
- }\r
- \r
- @Override\r
- public Expression checkBasicType(TypingContext context, Type requiredType) {\r
- try {\r
- Types.unify(requiredType, Types.UNIT);\r
- } catch (UnificationException e) {\r
- context.typeError(location, requiredType, Types.UNIT);\r
- return this;\r
- }\r
- for(Variable variable : variables)\r
- variable.setType(Types.metaVar(Kinds.STAR));\r
- query.checkType(context);\r
- action.checkType(context, Types.UNIT);\r
- \r
- // Compile query\r
- return compile(context);\r
- }\r
- \r
- public Expression compile(TypingContext context) {\r
- try {\r
- QueryCompilationContext queryCompilationContext =\r
- new QueryCompilationContext(context, QueryCompilationMode.ITERATE, null, action);\r
- new QExists(variables, query).generate(queryCompilationContext);\r
- return queryCompilationContext.getContinuation();\r
- } catch(UnsolvableQueryException e) {\r
- context.getErrorLog().log(getLocation(), "Failed to compile the query.\n" + e.getMessage());\r
- return new EError(getLocation());\r
- }\r
- }\r
-\r
- @Override\r
- public void collectFreeVariables(THashSet<Variable> vars) {\r
- action.collectFreeVariables(vars);\r
- query.collectFreeVariables(vars);\r
- for(Variable var : variables)\r
- vars.remove(var);\r
- }\r
-\r
- @Override\r
- public Expression resolve(TranslationContext context) {\r
- context.pushExistentialFrame();\r
- query = query.resolve(context);\r
- action = action.resolve(context);\r
- variables = context.popExistentialFrame();\r
- return this;\r
- }\r
-\r
- @Override\r
- public Expression decorate(ExpressionDecorator decorator) { \r
- return decorator.decorate(this);\r
- }\r
- \r
- @Override\r
- public Expression replace(ReplaceContext context) {\r
- Variable[] newVariables = new Variable[variables.length];\r
- for(int i=0;i<variables.length;++i) {\r
- Variable variable = variables[i];\r
- Variable newVariable = new Variable(variable.name, variable.getType());\r
- newVariables[i] = newVariable;\r
- context.varMap.put(variable, new EVariable(newVariable));\r
- }\r
- EWhen result = new EWhen(location, query.replace(context), action.replace(context), newVariables);\r
- for(int i=0;i<variables.length;++i)\r
- context.varMap.remove(variables[i]);\r
- return result;\r
- }\r
-\r
- @Override\r
- public void setLocationDeep(long loc) {\r
- if(location == Locations.NO_LOCATION) {\r
- location = loc;\r
- query.setLocationDeep(loc);\r
- action.setLocationDeep(loc);\r
- }\r
- }\r
- \r
- @Override\r
- public void accept(ExpressionVisitor visitor) {\r
- visitor.visit(this);\r
- }\r
- \r
- public Query getQuery() {\r
- return query;\r
- }\r
- \r
- public Expression getAction() {\r
- return action;\r
- }\r
-\r
- @Override\r
- public void forVariables(VariableProcedure procedure) {\r
- query.forVariables(procedure);\r
- action.forVariables(procedure);\r
- }\r
- \r
- @Override\r
- public Expression simplify(SimplificationContext context) {\r
- throw new UnsupportedOperationException();\r
- }\r
- \r
- @Override\r
- public Expression accept(ExpressionTransformer transformer) {\r
- return transformer.transform(this);\r
- }\r
-\r
-}\r
+package org.simantics.scl.compiler.elaboration.expressions;
+
+import org.simantics.scl.compiler.common.exceptions.InternalCompilerError;
+import org.simantics.scl.compiler.elaboration.contexts.ReplaceContext;
+import org.simantics.scl.compiler.elaboration.contexts.SimplificationContext;
+import org.simantics.scl.compiler.elaboration.contexts.TranslationContext;
+import org.simantics.scl.compiler.elaboration.contexts.TypingContext;
+import org.simantics.scl.compiler.elaboration.query.QExists;
+import org.simantics.scl.compiler.elaboration.query.Query;
+import org.simantics.scl.compiler.elaboration.query.compilation.QueryCompilationContext;
+import org.simantics.scl.compiler.elaboration.query.compilation.QueryCompilationMode;
+import org.simantics.scl.compiler.elaboration.query.compilation.UnsolvableQueryException;
+import org.simantics.scl.compiler.errors.Locations;
+import org.simantics.scl.compiler.types.Type;
+import org.simantics.scl.compiler.types.Types;
+import org.simantics.scl.compiler.types.exceptions.MatchException;
+import org.simantics.scl.compiler.types.exceptions.UnificationException;
+import org.simantics.scl.compiler.types.kinds.Kinds;
+
+import gnu.trove.map.hash.TObjectIntHashMap;
+import gnu.trove.set.hash.THashSet;
+import gnu.trove.set.hash.TIntHashSet;
+
+public class EWhen extends SimplifiableExpression {
+
+ public Query query;
+ public Expression action;
+ Variable[] variables;
+
+ public EWhen(Query query, Expression action) {
+ this.query = query;
+ this.action = action;
+ }
+
+ public EWhen(long location, Query query, Expression action, Variable[] variables) {
+ if(variables == null)
+ throw new NullPointerException();
+ if(location == Locations.NO_LOCATION)
+ new Exception().printStackTrace();
+ this.location = location;
+ this.query = query;
+ this.action = action;
+ this.variables = variables;
+ }
+
+ @Override
+ public void collectVars(TObjectIntHashMap<Variable> allVars,
+ TIntHashSet vars) {
+ query.collectVars(allVars, vars);
+ action.collectVars(allVars, vars);
+ }
+
+ @Override
+ public void collectEffects(THashSet<Type> effects) {
+ throw new InternalCompilerError(location, getClass().getSimpleName() + " does not support collectEffects.");
+ }
+
+ @Override
+ protected void updateType() throws MatchException {
+ setType(Types.UNIT);
+ }
+
+ @Override
+ public Expression checkBasicType(TypingContext context, Type requiredType) {
+ try {
+ Types.unify(requiredType, Types.UNIT);
+ } catch (UnificationException e) {
+ context.typeError(location, requiredType, Types.UNIT);
+ return this;
+ }
+ for(Variable variable : variables)
+ variable.setType(Types.metaVar(Kinds.STAR));
+ query.checkType(context);
+ action.checkIgnoredType(context);
+
+ // Compile query
+ return compile(context);
+ }
+
+ public Expression compile(TypingContext context) {
+ try {
+ QueryCompilationContext queryCompilationContext =
+ new QueryCompilationContext(context, QueryCompilationMode.ITERATE, null, action);
+ new QExists(variables, query).generate(queryCompilationContext);
+ return queryCompilationContext.getContinuation();
+ } catch(UnsolvableQueryException e) {
+ context.getErrorLog().log(getLocation(), "Failed to compile the query.\n" + e.getMessage());
+ return new EError(getLocation());
+ }
+ }
+
+ @Override
+ public void collectFreeVariables(THashSet<Variable> vars) {
+ action.collectFreeVariables(vars);
+ query.collectFreeVariables(vars);
+ for(Variable var : variables)
+ vars.remove(var);
+ }
+
+ @Override
+ public Expression resolve(TranslationContext context) {
+ context.pushExistentialFrame();
+ query = query.resolve(context);
+ action = action.resolve(context);
+ variables = context.popExistentialFrame();
+ return this;
+ }
+
+ @Override
+ public Expression replace(ReplaceContext context) {
+ Variable[] newVariables = new Variable[variables.length];
+ for(int i=0;i<variables.length;++i) {
+ Variable variable = variables[i];
+ Variable newVariable = new Variable(variable.name, variable.getType());
+ newVariables[i] = newVariable;
+ context.varMap.put(variable, new EVariable(newVariable));
+ }
+ EWhen result = new EWhen(location, query.replace(context), action.replace(context), newVariables);
+ for(int i=0;i<variables.length;++i)
+ context.varMap.remove(variables[i]);
+ return result;
+ }
+
+ @Override
+ public void setLocationDeep(long loc) {
+ if(location == Locations.NO_LOCATION) {
+ location = loc;
+ query.setLocationDeep(loc);
+ action.setLocationDeep(loc);
+ }
+ }
+
+ @Override
+ public void accept(ExpressionVisitor visitor) {
+ visitor.visit(this);
+ }
+
+ public Query getQuery() {
+ return query;
+ }
+
+ public Expression getAction() {
+ return action;
+ }
+
+ @Override
+ public Expression simplify(SimplificationContext context) {
+ throw new UnsupportedOperationException();
+ }
+
+ @Override
+ public Expression accept(ExpressionTransformer transformer) {
+ return transformer.transform(this);
+ }
+
+}
Code Review / simantics / platform.git / blobdiff