--- /dev/null
+package org.simantics.scl.compiler.elaboration.expressions;\r
+\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.constants.DoubleConstant;\r
+import org.simantics.scl.compiler.constants.FloatConstant;\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.errors.ErrorLog;\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
+\r
+public class ERealLiteral extends SimplifiableExpression {\r
+ public String value;\r
+ EVariable constraint;\r
+\r
+ public ERealLiteral(String value) {\r
+ this.value = value;\r
+ }\r
+\r
+ @Override\r
+ public void collectRefs(TObjectIntHashMap<Object> allRefs,\r
+ TIntHashSet refs) {\r
+ }\r
+\r
+ @Override\r
+ public void collectVars(TObjectIntHashMap<Variable> allVars,\r
+ TIntHashSet vars) {\r
+ }\r
+\r
+ private Expression tryToConvertToPrimitive(ErrorLog errorLog, Type requiredType) {\r
+ if(requiredType.equals(Types.DOUBLE))\r
+ return new ELiteral(new DoubleConstant(Double.parseDouble(value)));\r
+ else if(requiredType.equals(Types.FLOAT))\r
+ return new ELiteral(new FloatConstant(Float.parseFloat(value)));\r
+ else if(requiredType.equals(Types.INTEGER)) {\r
+ errorLog.log(location, "Cannot convert real literal to Integer.");\r
+ return new EError();\r
+ }\r
+ else if(requiredType.equals(Types.LONG)) {\r
+ errorLog.log(location, "Cannot convert real literal to Long.");\r
+ return new EError();\r
+ }\r
+ else\r
+ return null;\r
+ }\r
+ \r
+ @Override\r
+ public Expression checkBasicType(TypingContext context, Type requiredType) {\r
+ requiredType = Types.canonical(requiredType);\r
+ Expression primitive = tryToConvertToPrimitive(context.getErrorLog(), requiredType);\r
+ if(primitive != null)\r
+ return primitive;\r
+ else {\r
+ setType(requiredType); \r
+ constraint = new EVariable(location, null);\r
+ constraint.setType(Types.pred(Types.REAL, requiredType));\r
+ context.addConstraintDemand(constraint);\r
+ return this;\r
+ }\r
+ }\r
+\r
+ @Override\r
+ protected void updateType() throws MatchException {\r
+ throw new InternalCompilerError("TODO");\r
+ }\r
+ \r
+ @Override\r
+ public void collectFreeVariables(THashSet<Variable> vars) {\r
+ }\r
+\r
+ @Override\r
+ public Expression simplify(SimplificationContext context) {\r
+ Expression primitive = tryToConvertToPrimitive(context.getErrorLog(), getType());\r
+ if(primitive != null)\r
+ return primitive;\r
+ return context.apply(\r
+ context.getConstant(SimplificationContext.FROM_DOUBLE, getType()),\r
+ constraint.simplify(context),\r
+ context.literal(new DoubleConstant(Double.parseDouble(value)))\r
+ );\r
+ }\r
+\r
+ @Override\r
+ public Expression resolve(TranslationContext context) {\r
+ return this;\r
+ }\r
+ \r
+ @Override\r
+ public Expression resolveAsPattern(TranslationContext context) {\r
+ return new ELiteral(new DoubleConstant(Double.parseDouble(value)));\r
+ }\r
+ \r
+ @Override\r
+ public Expression replace(ReplaceContext context) {\r
+ ERealLiteral copy = new ERealLiteral(value);\r
+ copy.setType(getType().replace(context.tvarMap));\r
+ return copy;\r
+ }\r
+ \r
+ @Override\r
+ public Expression decorate(ExpressionDecorator decorator) { \r
+ return decorator.decorate(this);\r
+ }\r
+\r
+ @Override\r
+ public void collectEffects(THashSet<Type> effects) {\r
+ }\r
+ \r
+ @Override\r
+ public void setLocationDeep(long loc) {\r
+ if(location == Locations.NO_LOCATION) {\r
+ location = loc;\r
+ if(constraint != null)\r
+ constraint.setLocationDeep(loc);\r
+ }\r
+ }\r
+ \r
+ @Override\r
+ public void accept(ExpressionVisitor visitor) {\r
+ visitor.visit(this);\r
+ }\r
+\r
+ public String getValue() {\r
+ return value;\r
+ }\r
+\r
+ @Override\r
+ public void forVariables(VariableProcedure procedure) {\r
+ if(constraint != null)\r
+ constraint.forVariables(procedure);\r
+ }\r
+ \r
+ @Override\r
+ public Expression accept(ExpressionTransformer transformer) {\r
+ return transformer.transform(this);\r
+ }\r
+\r
+}\r