set_arg_data({{I}}, data);
  }
  {{MAYBE_CONST}}{{TYPE}}* var_{{NAME}}_data() {
    return static_cast<{{MAYBE_CONST}}{{TYPE}}*>(arg_data({{I}}));
  }
  {{MAYBE_CONST}}{{TYPE}}& var_{{NAME}}({{DIM_VARS}}) {
    return (*static_cast<{{MAYBE_CONST}}{{TYPE}}(*){{DIM_SIZES}}>(
        arg_data({{I}}))){{INDICES}};
  }
  const {{TYPE}}* var_{{NAME}}_data() const {
    return static_cast<const {{TYPE}}*>(arg_data({{I}}));

	if ir.IsBlank(a) {
		return walkExpr(typecheck.Stmt(n), init)
	}

	var_ := typecheck.TempAt(base.Pos, ir.CurFunc, types.NewPtr(t.Elem()))
	var_.SetTypecheck(1)
	var_.MarkNonNil() // mapaccess always returns a non-nil pointer

	n.Lhs[0] = var_
	init.Append(walkExpr(n, init))

	as := ir.NewAssignStmt(base.Pos, a, ir.NewStarExpr(base.Pos, var_))
	return walkExpr(typecheck.Stmt(as), init)
}

// where an array/slice element is accessed before it is set up.
func (subst *subster) typOrNil(typ Type) Type {
	if typ == nil {
		return Typ[Invalid]
	}
	return subst.typ(typ)
}

func (subst *subster) var_(v *Var) *Var {
	if v != nil {
		if typ := subst.typ(v.typ); typ != v.typ {
			return substVar(v, typ)
		}
	}
	return v
}

func substVar(v *Var, typ Type) *Var {
	copy := *v
	copy.typ = typ

// where an array/slice element is accessed before it is set up.
func (subst *subster) typOrNil(typ Type) Type {
	if typ == nil {
		return Typ[Invalid]
	}
	return subst.typ(typ)
}

func (subst *subster) var_(v *Var) *Var {
	if v != nil {
		if typ := subst.typ(v.typ); typ != v.typ {
			return substVar(v, typ)
		}
	}
	return v
}

func substVar(v *Var, typ Type) *Var {
	copy := *v
	copy.typ = typ

			}
			p.advance(_Import, _Const, _Type, _Var, _Func)
			continue
		}

		// Reset p.pragma BEFORE advancing to the next token (consuming ';')
		// since comments before may set pragmas for the next function decl.
		p.clearPragma()

		if p.tok != _EOF && !p.got(_Semi) {
			p.syntaxError("after top level declaration")
			p.advance(_Import, _Const, _Type, _Var, _Func)
		}
	}
	// p.tok == _EOF

                               result);
}

Node* MakeWrite(const Scope& scope, Output value_to_write, const string& id) {
  Output var_handle = ops::VarHandleOp(scope.WithOpName("Var_" + id), DT_FLOAT,
                                       TensorShape({}));
  ops::AssignVariableOp assign_op(scope.WithOpName("Assignee_" + id),
                                  var_handle, value_to_write);

		init.Append(typecheck.Stmt(nif))

		t = types.NewArray(t.Elem(), i) // [r]T
		var_ := typecheck.TempAt(base.Pos, ir.CurFunc, t)
		appendWalkStmt(init, ir.NewAssignStmt(base.Pos, var_, nil))  // zero temp
		r := ir.NewSliceExpr(base.Pos, ir.OSLICE, var_, nil, l, nil) // arr[:l]
		// The conv is necessary in case n.Type is named.
		return walkExpr(typecheck.Expr(typecheck.Conv(r, n.Type())), init)

			p.printParameterList(n.TParamList, _Type)
		}
		p.print(blank)
		if n.Alias {
			p.print(_Assign, blank)
		}
		p.print(n.Type)

	case *VarDecl:
		if n.Group == nil {
			p.print(_Var, blank)
		}
		p.printNameList(n.NameList)
		if n.Type != nil {
			p.print(blank, n.Type)
		}
		if n.Values != nil {
			p.print(blank, _Assign, blank, n.Values)
		}

	case *FuncDecl:

	return (uint(s[0])<<4 ^ uint(s[1]) + uint(len(s))) & uint(len(keywordMap)-1)
}

var keywordMap [1 << 6]token // size must be power of two

func init() {
	// populate keywordMap
	for tok := _Break; tok <= _Var; tok++ {
		h := hash([]byte(tok.String()))
		if keywordMap[h] != 0 {
			panic("imperfect hash")
		}
		keywordMap[h] = tok
	}
}

	{_Package, "package", 0, 0},
	{_Range, "range", 0, 0},
	{_Return, "return", 0, 0},
	{_Select, "select", 0, 0},
	{_Struct, "struct", 0, 0},
	{_Switch, "switch", 0, 0},
	{_Type, "type", 0, 0},
	{_Var, "var", 0, 0},
}

func TestComments(t *testing.T) {
	type comment struct {
		line, col uint // 0-based
		text      string
	}

	for _, test := range []struct {
		src  string
		want comment