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authorTucker Evans <tuckerevans24@gmail.com>2019-09-16 13:40:15 -0400
committerTucker Evans <tuckerevans24@gmail.com>2019-09-16 13:40:15 -0400
commit9138dd3df13215a03b295c9ed6cccd9cd49b2d3e (patch)
treed3d3f88b06eb72f8af04791338c8fb42a7b08471
parentf8a754eb192bc8fae9ff21da07f06c07d295ebc0 (diff)
Update Semantic checklist
-rw-r--r--SemanticCheckList.txt40
1 files changed, 22 insertions, 18 deletions
diff --git a/SemanticCheckList.txt b/SemanticCheckList.txt
index 9bd2c2c..f7fb1c7 100644
--- a/SemanticCheckList.txt
+++ b/SemanticCheckList.txt
@@ -1,37 +1,41 @@
DRAGON Semantic Checklist
=========================
-[ ] 1. Semantic rules for Scoping
-[ ] 1.1. Local objects cannot be declared more than once
-[ ] 1.2. Local objects hide non-local objects with the same name
-[ ] 1.3. Non-local objects should be visible from inner scopes (unless a local object of the same name exists)
-[ ] 1.4. Function and procedure names exist in the scope they are defined (and not in their own scopes)
-[ ] 1.5. Local objects cease to exist once their scopes cease to exist
+[X] 1. Semantic rules for Scoping
+[X] 1.1. Local objects cannot be declared more than once
+[X] 1.2. Local objects hide non-local objects with the same name
+[X] 1.3. Non-local objects should be visible from inner scopes (unless a local object of the same name exists)
+[X] 1.4. Function and procedure names exist in the scope they are defined (and not in their own scopes)
+[X] 1.5. Local objects cease to exist once their scopes cease to exist
-[ ] 2. Semantic rules for Expressions
-[ ] 2.1. Expressions return typed-values
-[ ] 2.2. Objects must be declared before they used in expressions
-[ ] 2.3. Objects of different types cannot appear in the same expression (no type promotions)
+[X] 2. Semantic rules for Expressions
+[X] 2.1. Expressions return typed-values
+[X] 2.2. Objects must be declared before they used in expressions
+[X] 2.3. Objects of different types cannot appear in the same expression (no type promotions)
[ ] 3. Semantic rules for Statements
[ ] 3.1. Statements do not return values
-[ ] 3.2. The test expression for IF-THEN, IF-THEN-ELSE, WHILE-DO must be Boolean-valued;
-[ ] note that the Boolean type must be implicitly defined
-[ ] 3.3. The ELSE clause always binds to the closest IF (resolution of the dangling ELSE problem)
+ TODO: Add check for return type on statements, parsing
+ statement_list?
+[X] 3.2. The test expression for IF-THEN, IF-THEN-ELSE, WHILE-DO must be Boolean-valued;
+[X] note that the Boolean type must be implicitly defined
+[X] 3.3. The ELSE clause always binds to the closest IF (resolution of the dangling ELSE problem)
[ ] 3.4. The variable type in FOR-DO must match the types of lower bound and upper bound expressions
[ ] 4. Semantic rules for Arrays
-[ ] 4.1. Non-integer valued expressions cannot be used for indexing arrays
+[X] 4.1. Non-integer valued expressions cannot be used for indexing arrays
[ ] 5. Semantic rules for Functions
-[ ] 5.1. Function calls return values of type Integer or Real
+[X] 5.1. Function calls return values of type Integer or Real
[ ] 5.2. Function must contain a "return" statement within its own body;
-[ ] this is of the form: <function_name> := <expression>
+ this is of the form: <function_name> := <expression>
[ ] 5.3. Functions must accept exactly the same number of arguments as is
-[ ] declared in its header, with the correct sequence of types
+ declared in its header, with the correct sequence of types
+ TODO: Fix array types.
[X] 5.4. Functions are not allowed to update the value of nonlocal objects (via assignment statements)
[ ] 6. Semantic rules for Procedures
[ ] 6.1. Procedure calls do not return values
[ ] 6.2. Procedures must accept exactly the same number of arguments as is
-[ ] declared in its header, with the correct sequence of types
+ declared in its header, with the correct sequence of types
+ TODO: Fix array types.