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use.sml.out
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(*
* Licensed to Julian Hyde under one or more contributor license
* agreements. See the NOTICE file distributed with this work
* for additional information regarding copyright ownership.
* Julian Hyde licenses this file to you under the Apache
* License, Version 2.0 (the "License"); you may not use this
* file except in compliance with the License. You may obtain a
* copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
* either express or implied. See the License for the specific
* language governing permissions and limitations under the
* License.
*
* Script that calls other scripts; tests the "use" command.
*)
Sys.set ("stringDepth", ~1);
val it = () : unit
(*) First, let's check that plans are assigned, but variables
(*) are not assigned, when there are exceptions.
val a = 2 + 3;
val a = 5 : int
Sys.plan();
val it = "apply2(fnValue +, constant(2), constant(3))" : string
val b = 20;
val b = 20 : int
(*) throws Subscript:
val a = String.sub("abc", b);
uncaught exception Subscript [subscript out of bounds]
raised at: stdIn:2.9-2.29
(*) plan is for the unsuccessful statement:
Sys.plan();
val it = "apply2(fnValue String.sub, constant(abc), constant(20))" : string
String.sub("xyz", b - 1);
uncaught exception Subscript [subscript out of bounds]
raised at: stdIn:1.1-1.25
(*) plan is for the unsuccessful expression:
Sys.plan();
val it =
"apply2(fnValue String.sub, constant(xyz), apply2(fnValue -, constant(20), constant(1)))"
: string
(*) a is still an int:
a;
val it = 5 : int
"entering use.sml";
val it = "entering use.sml" : string
val x = "step 1";
val x = "step 1" : string
(*) Include a script that uses x, and then defines x and plus3.
use "use-1.sml";
[opening use-1.sml]
(*
* Licensed to Julian Hyde under one or more contributor license
* agreements. See the NOTICE file distributed with this work
* for additional information regarding copyright ownership.
* Julian Hyde licenses this file to you under the Apache
* License, Version 2.0 (the "License"); you may not use this
* file except in compliance with the License. You may obtain a
* copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
* either express or implied. See the License for the specific
* language governing permissions and limitations under the
* License.
*
* Called by use.sml (which we assume has defined 'x');
* also called standalone. Some commands fail if 'x' is not
* defined, but the script continues to the end.
*)
"entering use-1.sml";
val it = "entering use-1.sml" : string
val y = x ^ ", ";
val y = "step 1, " : string
val x = y ^ "step 2";
val x = "step 1, step 2" : string
fun plus3 n = n + 3;
val plus3 = fn : int -> int
plus3 ~1;
val it = 2 : int
"leaving use-1.sml";
val it = "leaving use-1.sml" : string
(*) End use-1.sml
val it = () : unit
"x is now " ^ x;
val it = "x is now step 1, step 2" : string
plus3 7;
val it = 10 : int
(*) Now, define x as an integer, which will cause failures in the invoked
(*) script, but the script won't bail out.
val x = 10;
val x = 10 : int
use "use-1.sml";
[opening use-1.sml]
(*
* Licensed to Julian Hyde under one or more contributor license
* agreements. See the NOTICE file distributed with this work
* for additional information regarding copyright ownership.
* Julian Hyde licenses this file to you under the Apache
* License, Version 2.0 (the "License"); you may not use this
* file except in compliance with the License. You may obtain a
* copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
* either express or implied. See the License for the specific
* language governing permissions and limitations under the
* License.
*
* Called by use.sml (which we assume has defined 'x');
* also called standalone. Some commands fail if 'x' is not
* defined, but the script continues to the end.
*)
"entering use-1.sml";
val it = "entering use-1.sml" : string
val y = x ^ ", ";
0.0-0.0 Error: Cannot deduce type: conflict: int vs string
raised at: 0.0-0.0
val x = y ^ "step 2";
val x = "step 1, step 2" : string
fun plus3 n = n + 3;
val plus3 = fn : int -> int
plus3 ~1;
val it = 2 : int
"leaving use-1.sml";
val it = "leaving use-1.sml" : string
(*) End use-1.sml
val it = () : unit
"x is now " ^ x;
val it = "x is now step 1, step 2" : string
"leaving use.sml";
val it = "leaving use.sml" : string
(*) End use.sml