bundles/org.simantics.scl.compiler/src/org/simantics/scl/compiler/elaboration/java/Builtins.java

   1 package org.simantics.scl.compiler.elaboration.java;
   2
   3 import org.cojen.classfile.TypeDesc;
   4 import org.simantics.databoard.binding.mutable.Variant;
   5 import org.simantics.scl.compiler.common.datatypes.Constructor;
   6 import org.simantics.scl.compiler.common.names.Name;
   7 import org.simantics.scl.compiler.common.names.Names;
   8 import org.simantics.scl.compiler.common.precedence.Associativity;
   9 import org.simantics.scl.compiler.common.precedence.Precedence;
  10 import org.simantics.scl.compiler.constants.BooleanConstant;
  11 import org.simantics.scl.compiler.constants.Constant;
  12 import org.simantics.scl.compiler.constants.JavaStaticField;
  13 import org.simantics.scl.compiler.constants.JavaStaticMethod;
  14 import org.simantics.scl.compiler.constants.NoRepConstant;
  15 import org.simantics.scl.compiler.constants.SCLConstant;
  16 import org.simantics.scl.compiler.constants.SCLConstructor;
  17 import org.simantics.scl.compiler.constants.singletons.BindingConstant;
  18 import org.simantics.scl.compiler.constants.singletons.ClassConstant;
  19 import org.simantics.scl.compiler.constants.singletons.FailFunction;
  20 import org.simantics.scl.compiler.constants.singletons.JustConstant;
  21 import org.simantics.scl.compiler.constants.singletons.NothingConstant;
  22 import org.simantics.scl.compiler.constants.singletons.ThrowFunction;
  23 import org.simantics.scl.compiler.constants.singletons.TypeOfConstant;
  24 import org.simantics.scl.compiler.constants.singletons.TypeOfProxyConstant;
  25 import org.simantics.scl.compiler.constants.singletons.TypeProxyConstant;
  26 import org.simantics.scl.compiler.constants.singletons.TypeValueConstant;
  27 import org.simantics.scl.compiler.elaboration.fundeps.Fundep;
  28 import org.simantics.scl.compiler.elaboration.modules.Documentation;
  29 import org.simantics.scl.compiler.elaboration.modules.PrivateProperty;
  30 import org.simantics.scl.compiler.elaboration.modules.SCLValue;
  31 import org.simantics.scl.compiler.elaboration.modules.TypeClass;
  32 import org.simantics.scl.compiler.errors.Locations;
  33 import org.simantics.scl.compiler.internal.codegen.effects.EffectConstructor;
  34 import org.simantics.scl.compiler.internal.codegen.references.BoundVar;
  35 import org.simantics.scl.compiler.internal.codegen.ssa.SSABlock;
  36 import org.simantics.scl.compiler.internal.codegen.ssa.SSAFunction;
  37 import org.simantics.scl.compiler.internal.codegen.ssa.exits.Jump;
  38 import org.simantics.scl.compiler.internal.codegen.ssa.statements.LetApply;
  39 import org.simantics.scl.compiler.internal.codegen.types.MaybeType;
  40 import org.simantics.scl.compiler.internal.codegen.types.StandardTypeConstructor;
  41 import org.simantics.scl.compiler.internal.codegen.types.VectorType;
  42 import org.simantics.scl.compiler.internal.codegen.utils.Constants;
  43 import org.simantics.scl.compiler.module.ConcreteModule;
  44 import org.simantics.scl.compiler.types.TApply;
  45 import org.simantics.scl.compiler.types.TCon;
  46 import org.simantics.scl.compiler.types.TFun;
  47 import org.simantics.scl.compiler.types.TPred;
  48 import org.simantics.scl.compiler.types.TUnion;
  49 import org.simantics.scl.compiler.types.TVar;
  50 import org.simantics.scl.compiler.types.Type;
  51 import org.simantics.scl.compiler.types.Types;
  52 import org.simantics.scl.compiler.types.kinds.Kind;
  53 import org.simantics.scl.compiler.types.kinds.Kinds;
  54 import org.simantics.scl.runtime.chr.CHRContext;
  55 import org.simantics.scl.runtime.profiling.BranchPoint;
  56
  57 public class Builtins extends ConcreteModule {
  58
  59     public static final SCLValue[] TUPLE_CONSTRUCTORS = new SCLValue[Constants.MAX_TUPLE_LENGTH+1];
  60     public static final SCLValue[] LIST_CONSTRUCTORS = new SCLValue[Constants.MAX_LIST_LITERAL_LENGTH+1];
  61
  62     public static Builtins INSTANCE = new Builtins();
  63
  64     public static SCLValue Nothing;
  65     public static SCLValue Just;
  66
  67     public static SCLValue EQUALS;
  68
  69     private Builtins() {
  70         super(Types.BUILTIN);
  71
  72         TVar A = Types.var(Kinds.STAR);
  73
  74         StandardTypeConstructor Boolean = new StandardTypeConstructor(Types.BOOLEAN, Kinds.STAR, TypeDesc.BOOLEAN);
  75         Boolean.documentation = "Data type representing truth values `True` and `False`.";
  76         addTypeDescriptor("Boolean", Boolean);
  77         addTypeDescriptor("Byte", new StandardTypeConstructor(Types.BYTE, Kinds.STAR, TypeDesc.BYTE,
  78                 "8-bit signed integer"));
  79         addTypeDescriptor("Character", new StandardTypeConstructor(Types.CHARACTER, Kinds.STAR, TypeDesc.CHAR,
  80                 "16-bit Unicode character."));
  81         addTypeDescriptor("Short", new StandardTypeConstructor(Types.SHORT, Kinds.STAR, TypeDesc.SHORT,
  82                 "16-bit signed integer"));
  83         addTypeDescriptor("Integer", new StandardTypeConstructor(Types.INTEGER, Kinds.STAR, TypeDesc.INT,
  84                 "32-bit signed integer"));
  85         addTypeDescriptor("Long", new StandardTypeConstructor(Types.LONG, Kinds.STAR, TypeDesc.LONG,
  86                 "64-bit signed integer"));
  87         addTypeDescriptor("Float", new StandardTypeConstructor(Types.FLOAT, Kinds.STAR, TypeDesc.FLOAT,
  88                 "32-bit floating point number"));
  89         addTypeDescriptor("Double", new StandardTypeConstructor(Types.DOUBLE, Kinds.STAR, TypeDesc.DOUBLE,
  90                 "64-bit floating point number"));
  91         addTypeDescriptor("String", new StandardTypeConstructor(Types.STRING, Kinds.STAR, TypeDesc.STRING,
  92                 "Unicode string"));
  93
  94         addTypeDescriptor("Array", new StandardTypeConstructor(Types.con(Types.BUILTIN, "Array"), Kinds.STAR_TO_STAR, TypeDesc.forClass(Object[].class)));
  95
  96         addTypeDescriptor("Maybe", MaybeType.INSTANCE);
  97
  98         addTypeDescriptor("Variant", new StandardTypeConstructor(Types.VARIANT, Kinds.STAR, TypeDesc.forClass(Variant.class)));
  99
 100         addEffectConstructor("Proc", new EffectConstructor(Types.PROC));
 101         addEffectConstructor("Exception", new EffectConstructor(Types.EXCEPTION));
 102
 103         //addTypeDescriptor("->", new StandardTypeConstructor(Kinds.STAR_TO_STAR_TO_STAR, Constants.FUNCTION));
 104         addTypeDescriptor("[]", new StandardTypeConstructor(Types.LIST, Kinds.STAR_TO_STAR, Constants.LIST));
 105         addTypeDescriptor("@", new StandardTypeConstructor(Types.PUNIT, Kinds.STAR, Constants.TUPLE[0]));
 106         addTypeDescriptor("TypeProxy", new StandardTypeConstructor(Types.TYPE_PROXY, Kinds.STAR_TO_STAR, Constants.TUPLE[0]));
 107
 108         // *** Tuples ***
 109
 110         Kind tupleKind = Kinds.STAR;
 111         for(int arity=0;arity<=Constants.MAX_TUPLE_LENGTH;++arity) {
 112             if(arity != 1) {
 113                 TVar[] vars = new TVar[arity];
 114                 for(int i=0;i<vars.length;++i)
 115                     vars[i] = Types.var(Kinds.STAR);
 116                 TCon constructor = Types.tupleConstructor(arity);
 117                 StandardTypeConstructor typeConstructor =
 118                         new StandardTypeConstructor(constructor, tupleKind, Constants.TUPLE[arity]);
 119                 addTypeDescriptor(constructor.name, typeConstructor);
 120                 Type returnType = Types.apply(constructor, vars);
 121                 typeConstructor.setType(constructor, vars);
 122                 Constant cons;
 123                 String javaName = "org/simantics/scl/runtime/tuple/Tuple"+arity;
 124                 if(arity == 0) {
 125                     cons = new NoRepConstant(returnType);
 126                     typeConstructor.setConstructors(new Constructor(Locations.NO_LOCATION, typeConstructor,
 127                             Name.create(Types.BUILTIN, constructor.name),
 128                             vars, javaName)
 129                             );
 130                 }
 131                 else {
 132                     cons = new SCLConstructor(constructor.name,
 133                             javaName, vars, 0, returnType, vars);
 134                     typeConstructor.setConstructors(
 135                             new Constructor(Locations.NO_LOCATION, typeConstructor,
 136                                     Name.create(Types.BUILTIN, constructor.name),
 137                                     vars, javaName)
 138                             );
 139                 }
 140                 typeConstructor.isOpen = false;
 141                 SCLValue value = new SCLValue(Name.create(Types.BUILTIN, constructor.name), cons);
 142                 addValue(value);
 143                 TUPLE_CONSTRUCTORS[arity] = value;
 144             }
 145             tupleKind = Kinds.arrow(Kinds.STAR, tupleKind);
 146         }
 147
 148         // *** Lists ***
 149
 150         for(int arity=0;arity<=Constants.MAX_LIST_LITERAL_LENGTH;++arity) {
 151             SCLValue value = addValue("_list_literal_" + arity + "_",
 152                     arity == 0 ? new EmptyListConstructor() :
 153                         new ListConstructor(arity)
 154                     );
 155             value.addProperty(PrivateProperty.INSTANCE);
 156             LIST_CONSTRUCTORS[arity] = value;
 157         }
 158
 159         // *** Boolean ***
 160
 161         SCLValue True = addValue("True", new BooleanConstant(true));
 162         SCLValue False = addValue("False", new BooleanConstant(false));
 163         Boolean.setConstructors(
 164                 new Constructor(Locations.NO_LOCATION, Boolean, False.getName(), Type.EMPTY_ARRAY, null),
 165                 new Constructor(Locations.NO_LOCATION, Boolean, True.getName(), Type.EMPTY_ARRAY, null)
 166                 );
 167         Boolean.isOpen = false;
 168
 169         // *** Maybe ***
 170
 171         Nothing = addValue("Nothing", NothingConstant.INSTANCE);
 172         Just = addValue("Just", JustConstant.INSTANCE);
 173         MaybeType.INSTANCE.setConstructors(
 174                 new Constructor(Locations.NO_LOCATION, MaybeType.INSTANCE, Nothing.getName(), Type.EMPTY_ARRAY, null),
 175                 new Constructor(Locations.NO_LOCATION, MaybeType.INSTANCE, Just.getName(), new Type[] {MaybeType.INSTANCE.parameters[0]}, null)
 176                 );
 177
 178         // *** Dynamic ***
 179
 180         addValue("Dynamic", DynamicConstructor.INSTANCE);
 181
 182         // *** Vector ***
 183
 184         TypeClass VecCompC = new TypeClass(Locations.NO_LOCATION,
 185                 TPred.EMPTY_ARRAY,
 186                 Types.VEC_COMP,
 187                 "java/lang/Class",
 188                 new TVar[] {A},
 189                 Fundep.EMPTY_ARRAY);
 190         addTypeClass("VecComp", VecCompC);
 191
 192         addTypeDescriptor("Vector", new VectorType(Types.VECTOR));
 193         addValue("getVector", new GetVector(Types.NO_EFFECTS, Types.VECTOR));
 194         addValue("lengthVector", new LengthVector(Types.VECTOR));
 195         //addValue("createVectorFromList", CreateVectorFromList.INSTANCE);
 196
 197         addTypeDescriptor("MVector", new VectorType(Types.MVECTOR));
 198         addValue("createMVector", CreateMVector.INSTANCE);
 199         addValue("createMVectorProto", CreateMVectorProto.INSTANCE);
 200         addValue("getMVector", new GetVector(Types.PROC, Types.MVECTOR));
 201         addValue("lengthMVector", new LengthVector(Types.MVECTOR));
 202         addValue("freezeMVector", new FreezeMVector());
 203         addValue("setMVector", SetMVector.INSTANCE);
 204
 205         StandardTypeConstructor ClassC = new StandardTypeConstructor(Types.CLASS, Kinds.STAR_TO_STAR,
 206                 TypeDesc.forClass("java/lang/Class"));
 207         ClassC.setType(Types.CLASS, A);
 208         addTypeDescriptor("Class", ClassC);
 209         addValue("classObject", ClassConstant.INSTANCE);
 210
 211         // *** fail ***
 212
 213         addValue("fail", FailFunction.INSTANCE).documentation =
 214                 "Throws a runtime exeception with the given string as a description.";
 215         addValue("throw", ThrowFunction.INSTANCE).documentation =
 216                 "Throws a given exception.";
 217
 218         // *** runProc ***
 219
 220         {
 221             TVar a = Types.var(Kinds.STAR);
 222             TVar e = Types.var(Kinds.EFFECT);
 223             SSAFunction runProcFunction = new SSAFunction(new TVar[] {a,e}, e, a);
 224             Type parameterType = Types.functionE(Types.PUNIT, Types.union(new Type[] {Types.PROC,e}), a);
 225             SSABlock block = new SSABlock(parameterType);
 226             BoundVar[] parameters = block.getParameters();
 227
 228             BoundVar x = new BoundVar(a);
 229             LetApply apply = new LetApply(x, Types.PROC, parameters[0].createOccurrence(),
 230                     new NoRepConstant(Types.PUNIT).createOccurrence()
 231                     );
 232             block.addStatement(apply);
 233
 234             block.setExit(new Jump(-1, runProcFunction.getReturnCont().createOccurrence(),
 235                     x.createOccurrence()));
 236
 237             runProcFunction.addBlock(block);
 238             SCLConstant runProc = new SCLConstant(Names.Builtin_runProc, runProcFunction.getType());
 239             runProc.setDefinition(runProcFunction);
 240             runProc.setInlineArity(1, 0xffffffff);
 241             runProc.setBase(new JavaStaticMethod("org/simantics/scl/runtime/procedure/Procedures",
 242                     "runProc", a, parameterType));
 243             addValue("runProc", runProc);
 244         }
 245
 246         // *** Typeable ***
 247
 248         {
 249             /* class Typeable a
 250              */
 251             TypeClass TypeableC = new TypeClass(Locations.NO_LOCATION,
 252                     TPred.EMPTY_ARRAY,
 253                     Types.TYPEABLE,
 254                     Type.class.getName(),
 255                     new TVar[] {A},
 256                     Fundep.EMPTY_ARRAY);
 257             TypeableC.documentation = "A class of types that can be reified with `typeOf` function.";
 258             addTypeClass("Typeable", TypeableC);
 259
 260             /* data Type = TCon String String
 261              *           | TApply Type Type
 262              */
 263             final TCon Type = Types.con(Types.BUILTIN, "Type");
 264             final TypeDesc TypeD = TypeDesc.forClass(Type.class);
 265             addValue("TCon", new JavaStaticMethod(
 266                     Types.class.getName().replace('.', '/'),
 267                     "con",
 268                     TypeDesc.forClass(TCon.class), new TypeDesc[] {TypeDesc.STRING, TypeDesc.STRING},
 269                     Type, Types.STRING, Types.STRING));
 270             addValue("TApply", new JavaStaticMethod(
 271                     "org/simantics/scl/compiler/types/Types",
 272                     "apply",
 273                     TypeDesc.forClass(TApply.class), new TypeDesc[] {TypeD, TypeD},
 274                     Type, Type, Type));
 275             addValue("TFun", new JavaStaticMethod(
 276                     "org/simantics/scl/compiler/types/Types",
 277                     "functionE",
 278                     TypeDesc.forClass(TFun.class), new TypeDesc[] {TypeD, TypeD, TypeD},
 279                     Type, Type, Type, Type));
 280             addValue("TPure", new JavaStaticField(
 281                     "org/simantics/scl/compiler/types/Types",
 282                     "NO_EFFECTS",
 283                     Types.NO_EFFECTS,
 284                     TypeDesc.forClass(TUnion.class),
 285                     Type, -1));
 286             addValue("TUnion2", new JavaStaticMethod(
 287                     "org/simantics/scl/compiler/types/Types",
 288                     "union",
 289                     Types.NO_EFFECTS,
 290                     Type, Type, Type));
 291             addValue("TUnion3", new JavaStaticMethod(
 292                     "org/simantics/scl/compiler/types/Types",
 293                     "union",
 294                     Types.NO_EFFECTS,
 295                     Type, Type, Type, Type));
 296
 297             StandardTypeConstructor TypeC = new StandardTypeConstructor(Type, Kinds.STAR,
 298                     TypeDesc.forClass("org/simantics/scl/compiler/types/Type"));
 299             TypeC.setType(Type);
 300             TypeC.isOpen = true;
 301             TypeC.documentation = "Represents an SCL data type.";
 302             addTypeDescriptor("Type", TypeC);
 303
 304             // typeOf :: Typeable a => a -> Type
 305             addValue("typeOf", TypeOfConstant.INSTANCE)
 306             .documentation = "Returns the type of the value given as a parameter.";
 307             addValue("typeValue", TypeValueConstant.INSTANCE);
 308             addValue("typeOfProxy", TypeOfProxyConstant.INSTANCE)
 309             .documentation = "Returns the type of the type proxy given as a parameter.";
 310             addValue("TypeProxy", TypeProxyConstant.INSTANCE);
 311         }
 312
 313         // *** Serializable ***
 314
 315         {
 316             /* class Serializable a
 317              */
 318             TypeClass SerializableC = new TypeClass(Locations.NO_LOCATION,
 319                     TPred.EMPTY_ARRAY,
 320                     Types.SERIALIZABLE,
 321                     "org/simantics/databoard/binding/Binding",
 322                     new TVar[] {A},
 323                     Fundep.EMPTY_ARRAY);
 324             SerializableC.documentation = "A class of types having a `Binding`";
 325             addTypeClass("Serializable", SerializableC);
 326
 327             /* data TypeRep = TCon String
 328              *              | TApply TypeRep TypeRep
 329              */
 330
 331             StandardTypeConstructor BindingC = new StandardTypeConstructor(Types.BINDING, Kinds.STAR_TO_STAR,
 332                     TypeDesc.forClass("org/simantics/databoard/binding/Binding"));
 333             BindingC.setType(Types.BINDING, A);
 334             BindingC.documentation = "`Binding` represents a data type in the form supported by Databoard library. " +
 335                     "It is used to serialize and deserialize values.";
 336             addTypeDescriptor("Binding", BindingC);
 337
 338             // typeOf :: Typeable a => a -> TypeReps
 339             addValue("binding", BindingConstant.INSTANCE)
 340             .documentation = "Gives a binding for the required type.";
 341
 342         }
 343
 344         // Relations
 345
 346         {
 347             addRelation("Eq", EqRelation.INSTANCE);
 348             addRelation("Optional", OptionalRelation.INSTANCE);
 349             addRelation("Execute", new ExecuteRelation(0));
 350             addRelation("Execute10", new ExecuteRelation(10));
 351         }
 352
 353         {
 354             EQUALS = new SCLValue(Names.Builtin_equals, EqualsFunction.INSTANCE);
 355             EQUALS.setPrecedence(new Precedence(4, Associativity.NONASSOC));
 356             addValue(EQUALS);
 357             addValue("hashCode", HashCodeFunction.INSTANCE);
 358         }
 359
 360         // Coverage
 361         {
 362             StandardTypeConstructor branchPoint = new StandardTypeConstructor(Types.BRANCH_POINT, Kinds.STAR,
 363                     TypeDesc.forClass(BranchPoint.class));
 364             addTypeDescriptor("BranchPoint", branchPoint);
 365
 366             addValue("visitBranchPoint", VisitBranchPoint.INSTANCE);
 367         }
 368
 369         setParentClassLoader(getClass().getClassLoader());
 370
 371         // CHR
 372
 373         addTypeDescriptor("CHRContext", new StandardTypeConstructor(Types.CHRContext, Kinds.STAR, TypeDesc.forClass(CHRContext.class)));
 374     }
 375
 376     @Override
 377     public Documentation getDocumentation() {
 378         return documentation;
 379     }
 380
 381         public static void flush() {
 382                 INSTANCE = new Builtins();
 383         }
 384
 385 }