Exercise 3 Here again is the example used to show the difference between sco ing with blocks and dynamic scoping: fun g x - let val inc = 1; fun fy = y + inc; fun h z = let in end; hx in val inc = 2; end; in Copy it and then annotate it as follows: a. Draw a circle around every block, and number the blocks. b. Identify each definition of a name. c. For each definition, describe its scope in terms of your block numbers. d. For each occurrence of a name (other than a definition of that name), show which definition is used to bind it. Check that this agrees with your scopes int: Please refer to the answer to part (a) in the following diagram. fz fun gx = let val inc = 1; fun fy = y + inc; fun hz = let end; hx val inc = 2; in fz end; 6 5 3 2 1
Exercise 3 Here again is the example used to show the difference between sco ing with blocks and dynamic scoping: fun g x - let val inc = 1; fun fy = y + inc; fun h z = let in end; hx in val inc = 2; end; in Copy it and then annotate it as follows: a. Draw a circle around every block, and number the blocks. b. Identify each definition of a name. c. For each definition, describe its scope in terms of your block numbers. d. For each occurrence of a name (other than a definition of that name), show which definition is used to bind it. Check that this agrees with your scopes int: Please refer to the answer to part (a) in the following diagram. fz fun gx = let val inc = 1; fun fy = y + inc; fun hz = let end; hx val inc = 2; in fz end; 6 5 3 2 1
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
Related questions
Topic Video
Question
![Exercise 3 Here again is the example used to show the difference between scop-
ing with blocks and dynamic scoping:
fun g x -
let
val inc = 1;
fun fy = y + inc;
fun h z =
let
in
end;
hx
in
val inc = 2;
end;
in
Copy it and then annotate it as follows:
a. Draw a circle around every block, and number the blocks.
b. Identify each definition of a name.
c. For each definition, describe its scope in terms of your block numbers.
d. For each occurrence of a name (other than a definition of that name), show
which definition is used to bind it. Check that this agrees with your scopes.
lint: Please refer to the answer to part (a) in the following diagram.
fz
fun gx =
let
val inc = 1;
fun f Y = y + inc;
14
fun hz
=
let
end;
h x
val inc = 2;
in
f z
end;
(O
6
5
2
1](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F62d26312-08a6-4248-8afd-51925e48f0bb%2F5293ddfc-85fd-4226-9d84-785f5370a126%2F5lmeb5j_processed.png&w=3840&q=75)
Transcribed Image Text:Exercise 3 Here again is the example used to show the difference between scop-
ing with blocks and dynamic scoping:
fun g x -
let
val inc = 1;
fun fy = y + inc;
fun h z =
let
in
end;
hx
in
val inc = 2;
end;
in
Copy it and then annotate it as follows:
a. Draw a circle around every block, and number the blocks.
b. Identify each definition of a name.
c. For each definition, describe its scope in terms of your block numbers.
d. For each occurrence of a name (other than a definition of that name), show
which definition is used to bind it. Check that this agrees with your scopes.
lint: Please refer to the answer to part (a) in the following diagram.
fz
fun gx =
let
val inc = 1;
fun f Y = y + inc;
14
fun hz
=
let
end;
h x
val inc = 2;
in
f z
end;
(O
6
5
2
1
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