func declareBuiltin(b *builder, builtin *link8.Pkg) {
path := builtin.Path()
e := b.p.HookBuiltin(builtin)
if e != nil {
b.Errorf(nil, e.Error())
return
}
o := func(name, as string, t *types.Func) ir.Ref {
sym := builtin.SymbolByName(name)
if sym == nil {
b.Errorf(nil, "builtin symbol %s missing", name)
return nil
} else if sym.Type != link8.SymFunc {
b.Errorf(nil, "builtin symbol %s is not a function", name)
return nil
}
ref := ir.NewFuncSym(path, name, makeFuncSig(t))
obj := &objFunc{name: as, ref: newRef(t, ref)}
s := sym8.Make(b.path, as, tast.SymFunc, obj, t, nil)
pre := b.scope.Declare(s)
if pre != nil {
b.Errorf(nil, "builtin symbol %s declare failed", name)
return nil
}
return ref
}
// TODO: export these as generic function pointer symbols, and convert
// them into G functions in g files, rather than inside here in the
// compiler.
o("PrintInt32", "printInt", types.NewVoidFunc(types.Int))
o("PrintUint32", "printUint", types.NewVoidFunc(types.Uint))
o("PrintChar", "printChar", types.NewVoidFunc(types.Int8))
b.panicFunc = o("Panic", "panic", types.VoidFunc)
bi := func(name string) {
t := types.NewBuiltInFunc(name)
obj := &objFunc{name: name, ref: newRef(t, nil)}
s := sym8.Make(b.path, name, tast.SymFunc, obj, t, nil)
pre := b.scope.Declare(s)
if pre != nil {
b.Errorf(nil, "builtin symbol %s declare failed", name)
}
}
bi("len")
bi("make")
c := func(name string, r *ref) {
// TODO: declare these as typed consts
obj := &objConst{name, r}
s := sym8.Make(b.path, name, tast.SymConst, obj, r.Type(), nil)
pre := b.scope.Declare(s)
if pre != nil {
b.Errorf(nil, "builtin symbol %s declare failed", name)
}
}
c("true", refTrue)
c("false", refFalse)
c("nil", refNil)
t := func(name string, t types.T) {
s := sym8.Make(b.path, name, tast.SymType, nil, &types.Type{t}, nil)
pre := b.scope.Declare(s)
if pre != nil {
b.Errorf(nil, "builtin symbol %s declare failed", name)
}
}
t("int", types.Int)
t("uint", types.Uint)
t("int32", types.Int)
t("uint32", types.Uint)
t("int8", types.Int8)
t("uint8", types.Uint8)
t("char", types.Int8)
t("byte", types.Uint8)
t("bool", types.Bool)
t("float", types.Float32)
t("string", types.String)
// t("ptr", &types.Pointer{types.Uint8})
// t("float32", types.Float32)
// t("string", types.String)
}
func wrapFunc(b *builder, name, wrapName string) {
f := findFunc(b, name, types.VoidFunc)
if f == nil {
return
}
b.f = b.p.NewFunc(wrapName, nil, ir.VoidFuncSig)
b.b = b.f.NewBlock(nil)
b.b.Call(nil, f.IR())
}
func addStart(b *builder) { wrapFunc(b, "main", startName) }
func addInit(b *builder) { wrapFunc(b, "init", initName) }
var testMainFuncType = types.NewVoidFunc(types.VoidFunc)
func addTestStart(b *builder, testList ir.Ref, n int) {
b.f = b.p.NewFunc(testStartName, nil, ir.VoidFuncSig)
b.b = b.f.NewBlock(nil)
argAddr := ir.Num(arch8.AddrBootArg) // the arg
index := b.newTempIR(types.Uint) // to save the index
b.b.Assign(index, ir.NewAddrRef(argAddr, arch8.RegSize, 0, false, true))
size := ir.Num(uint32(n))
checkInRange(b, index, size, "u<")
base := b.newPtr()
b.b.Arith(base, nil, "&", testList)
addr := b.newPtr()