peter/IBAFLang
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Collect all declared variables at start of program execution

Browse Source
This commit is contained in:
Peter
2024-04-16 08:12:52 +02:00
parent cb7f6f8e5d
commit f5f5626521
21 changed files with 299 additions and 284 deletions
Download Patch File Download Diff File Expand all files Collapse all files

36
IBAF-cbs/IBAF/IBAF-Start/IBAF-Expressions.cbs
View File

@@ -20,10 +20,8 @@ Syntax Exp:exp ::= id
| exp '>=' exp
| exp '>' exp
Syntax ParamValues: paramvalues ::= exp (',' paramvalues)?
Semantics eval-exp[[ _:exp ]] : => values
Rule eval-exp[[ Id ]] = assigned(bound(id[[ Id ]]))
Semantics eval-exp[[ _:exp ]] : =>values
Rule eval-exp[[ Id ]] = assigned bound id[[ Id ]]
Rule eval-exp[[ Int ]] = int-val[[ Int ]]
Rule eval-exp[[ 'true' ]] = true
Rule eval-exp[[ 'false' ]] = false
@@ -42,18 +40,28 @@ Rule eval-exp[[ Exp1 '<' Exp2 ]] = is-less(eval-exp[[ Exp1 ]], eval-exp[[ Exp2]]
Rule eval-exp[[ Id '(' ParamValues? ')' ]] = handle-return apply(bound id[[ Id ]], eval-params[[ ParamValues? ]])
Rule eval-exp[[ '(' Exp ')' ]] = eval-exp[[ Exp ]]
## Handling expressions for function calls
Syntax ParamValues: paramvalues ::= exp (',' paramvalues)?
Semantics eval-params[[ _:paramvalues? ]] : lists(values)
Rule eval-params[[ ]] = list()
Rule eval-params[[ Exp ]] = list(eval-exp[[ Exp ]])
Rule eval-params[[ Exp ',' ParamValues ]] = cons(eval-exp[[ Exp ]], eval-params[[ ParamValues ]])
## Ids
Lexis Id:id ::= ('a'-'z' | 'A'-'Z') ('a'-'z' | 'A'-'Z' | '0'-'9')*
Semantics id[[ _:id ]] : identifiers
Rule id[[ Id ]] = \"Id\"
## Integers and decimals
Syntax Int:int ::= '0' | ('-'?_decimal)
Semantics int-val[[ _:int ]] : ints
@@ -71,4 +79,24 @@ Rule dec-val[[ Dec ]] = decimal-natural(\"Dec\")
//Semantics eval-exp[[ _:exp ]] : => values
//
//Rule eval-exp[[ Id ]] = assigned bound id[[ Id ]]
//
//Rule eval-exp[[ Int ]] = int-val[[ Int ]]
//
//Rule eval-exp[[ Exp1 '+' Exp2 ]] =
// int-add(eval-exp[[ Exp1 ]], eval-exp[[ Exp2 ]])
//
//Rule eval-exp[[ Exp1 '/' Exp2 ]] =
// checked int-div(eval-exp[[ Exp1 ]], eval-exp[[ Exp2 ]])
//
//Rule eval-exp[[ Id '(' ParamValues? ')' ]] =
// handle-return apply(bound id[[ Id ]], eval-params[[ ParamValues? ]])
//
//Rule eval-exp[[ '(' Exp ')' ]] = eval-exp[[ Exp ]]