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https://github.com/golang/go
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149 lines
3.3 KiB
Go
Executable File
149 lines
3.3 KiB
Go
Executable File
// Copyright 2009 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package Universe
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import Globals "globals"
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import Object "object"
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import Type "type"
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export
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scope,
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undef_t, bad_t, nil_t,
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bool_t,
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uint8_t, uint16_t, uint32_t, uint64_t,
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int8_t, int16_t, int32_t, int64_t,
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float32_t, float64_t, float80_t,
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string_t, any_t,
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byte_t,
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ushort_t, uint_t, ulong_t,
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short_t, int_t, long_t,
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float_t, double_t,
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ptrint_t,
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true_, false_
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var (
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scope *Globals.Scope;
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// internal types
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undef_t,
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bad_t,
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nil_t,
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// basic types
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bool_t,
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uint8_t,
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uint16_t,
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uint32_t,
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uint64_t,
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int8_t,
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int16_t,
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int32_t,
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int64_t,
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float32_t,
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float64_t,
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float80_t,
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string_t,
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any_t,
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// alias types
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byte_t,
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ushort_t,
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uint_t,
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ulong_t,
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short_t,
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int_t,
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long_t,
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float_t,
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double_t,
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ptrint_t *Globals.Type;
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true_,
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false_ *Globals.Object;
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)
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func DeclObj(kind int, ident string, typ *Globals.Type) *Globals.Object {
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obj := Globals.NewObject(-1 /* no source pos */, kind, ident);
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obj.typ = typ;
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if kind == Object.TYPE && typ.obj == nil {
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typ.obj = obj; // set primary type object
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}
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scope.Insert(obj);
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return obj
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}
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func DeclAlias(ident string, typ *Globals.Type) *Globals.Type {
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return DeclObj(Object.TYPE, ident, typ).typ;
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}
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func DeclType(form int, ident string, size int) *Globals.Type {
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typ := Globals.NewType(form);
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typ.size = size;
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return DeclAlias(ident, typ);
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}
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func Register(typ *Globals.Type) *Globals.Type {
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/*
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type->ref = Universe::types.len(); // >= 0
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Universe::types.Add(type);
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*/
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return typ;
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}
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export Init
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func Init() {
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// print "initializing universe\n";
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scope = Globals.NewScope(nil); // universe has no parent
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// Interal types
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undef_t = Globals.NewType(Type.UNDEF);
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bad_t = Globals.NewType(Type.BAD);
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nil_t = DeclType(Type.NIL, "nil", 8);
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// Basic types
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bool_t = Register(DeclType(Type.BOOL, "bool", 1));
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uint8_t = Register(DeclType(Type.UINT, "uint8", 1));
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uint16_t = Register(DeclType(Type.UINT, "uint16", 2));
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uint32_t = Register(DeclType(Type.UINT, "uint32", 4));
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uint64_t = Register(DeclType(Type.UINT, "uint64", 8));
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int8_t = Register(DeclType(Type.INT, "int8", 1));
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int16_t = Register(DeclType(Type.INT, "int16", 2));
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int32_t = Register(DeclType(Type.INT, "int32", 4));
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int64_t = Register(DeclType(Type.INT, "int64", 8));
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float32_t = Register(DeclType(Type.FLOAT, "float32", 4));
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float64_t = Register(DeclType(Type.FLOAT, "float64", 8));
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float80_t = Register(DeclType(Type.FLOAT, "float80", 10));
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string_t = Register(DeclType(Type.STRING, "string", 8));
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any_t = Register(DeclType(Type.ANY, "any", 8));
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// All but 'byte' should be platform-dependent, eventually.
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byte_t = DeclAlias("byte", uint8_t);
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ushort_t = DeclAlias("ushort", uint16_t);
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uint_t = DeclAlias("uint", uint32_t);
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ulong_t = DeclAlias("ulong", uint32_t);
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short_t = DeclAlias("short", int16_t);
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int_t = DeclAlias("int", int32_t);
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long_t = DeclAlias("long", int32_t);
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float_t = DeclAlias("float", float32_t);
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double_t = DeclAlias("double", float64_t);
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ptrint_t = DeclAlias("ptrint", uint64_t);
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// Predeclared constants
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true_ = DeclObj(Object.CONST, "true", bool_t);
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false_ = DeclObj(Object.CONST, "false", bool_t);
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// Builtin functions
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DeclObj(Object.FUNC, "len", Globals.NewType(Type.FUNCTION)); // incomplete
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// scope.Print();
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}
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