1 package org.simantics.scl.compiler.elaboration.expressions;
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4 import org.simantics.scl.compiler.common.exceptions.InternalCompilerError;
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5 import org.simantics.scl.compiler.common.names.Names;
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6 import org.simantics.scl.compiler.constants.DoubleConstant;
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7 import org.simantics.scl.compiler.constants.FloatConstant;
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8 import org.simantics.scl.compiler.elaboration.contexts.ReplaceContext;
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9 import org.simantics.scl.compiler.elaboration.contexts.SimplificationContext;
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10 import org.simantics.scl.compiler.elaboration.contexts.TranslationContext;
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11 import org.simantics.scl.compiler.elaboration.contexts.TypingContext;
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12 import org.simantics.scl.compiler.errors.ErrorLog;
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13 import org.simantics.scl.compiler.errors.Locations;
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14 import org.simantics.scl.compiler.internal.elaboration.utils.ExpressionDecorator;
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15 import org.simantics.scl.compiler.types.Type;
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16 import org.simantics.scl.compiler.types.Types;
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17 import org.simantics.scl.compiler.types.exceptions.MatchException;
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19 import gnu.trove.map.hash.TObjectIntHashMap;
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20 import gnu.trove.set.hash.THashSet;
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21 import gnu.trove.set.hash.TIntHashSet;
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23 public class ERealLiteral extends SimplifiableExpression {
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24 public String value;
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25 EVariable constraint;
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27 public ERealLiteral(String value) {
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32 public void collectRefs(TObjectIntHashMap<Object> allRefs,
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37 public void collectVars(TObjectIntHashMap<Variable> allVars,
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41 private Expression tryToConvertToPrimitive(ErrorLog errorLog, Type requiredType) {
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42 if(requiredType.equals(Types.DOUBLE))
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43 return new ELiteral(new DoubleConstant(Double.parseDouble(value)));
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44 else if(requiredType.equals(Types.FLOAT))
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45 return new ELiteral(new FloatConstant(Float.parseFloat(value)));
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46 else if(requiredType.equals(Types.INTEGER)) {
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47 errorLog.log(location, "Cannot convert real literal to Integer.");
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48 return new EError();
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50 else if(requiredType.equals(Types.LONG)) {
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51 errorLog.log(location, "Cannot convert real literal to Long.");
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52 return new EError();
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59 public Expression checkBasicType(TypingContext context, Type requiredType) {
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60 requiredType = Types.canonical(requiredType);
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61 Expression primitive = tryToConvertToPrimitive(context.getErrorLog(), requiredType);
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62 if(primitive != null)
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65 setType(requiredType);
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66 constraint = new EVariable(location, null);
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67 constraint.setType(Types.pred(Types.REAL, requiredType));
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68 context.addConstraintDemand(constraint);
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74 protected void updateType() throws MatchException {
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75 throw new InternalCompilerError("TODO");
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79 public void collectFreeVariables(THashSet<Variable> vars) {
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83 public Expression simplify(SimplificationContext context) {
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84 Expression primitive = tryToConvertToPrimitive(context.getErrorLog(), getType());
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85 if(primitive != null)
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87 return context.apply(
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88 context.getConstant(Names.Prelude_fromDouble, getType()),
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89 constraint.simplify(context),
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90 context.literal(new DoubleConstant(Double.parseDouble(value)))
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95 public Expression resolve(TranslationContext context) {
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100 public Expression resolveAsPattern(TranslationContext context) {
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101 return new ELiteral(new DoubleConstant(Double.parseDouble(value)));
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105 public Expression replace(ReplaceContext context) {
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106 ERealLiteral copy = new ERealLiteral(value);
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107 copy.setType(getType().replace(context.tvarMap));
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112 public Expression decorate(ExpressionDecorator decorator) {
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113 return decorator.decorate(this);
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117 public void collectEffects(THashSet<Type> effects) {
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121 public void setLocationDeep(long loc) {
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122 if(location == Locations.NO_LOCATION) {
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124 if(constraint != null)
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125 constraint.setLocationDeep(loc);
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130 public void accept(ExpressionVisitor visitor) {
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131 visitor.visit(this);
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134 public String getValue() {
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139 public void forVariables(VariableProcedure procedure) {
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140 if(constraint != null)
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141 constraint.forVariables(procedure);
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145 public Expression accept(ExpressionTransformer transformer) {
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146 return transformer.transform(this);
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