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authorEelco Dolstra <eelco.dolstra@logicblox.com>2013-08-02 16:03:02 +0000
committerEelco Dolstra <eelco.dolstra@logicblox.com>2013-08-02 16:03:02 +0000
commit47701677e88230abf7d9106c55f46aa660643ce7 (patch)
treea63fb4fde15c85de24b3d04a3346cd72c6e009ca
parent5d147e125cea69e9a3b12f0ef64c64f42985c65e (diff)
Add integer ‘-’, ‘*’ and ‘/’ operators
-rw-r--r--src/libexpr/parser.y6
-rw-r--r--tests/lang/eval-okay-arithmetic.exp2
-rw-r--r--tests/lang/eval-okay-arithmetic.nix6
-rw-r--r--tests/lang/lib.nix4
4 files changed, 16 insertions, 2 deletions
diff --git a/src/libexpr/parser.y b/src/libexpr/parser.y
index 4a59a0875..d998c840e 100644
--- a/src/libexpr/parser.y
+++ b/src/libexpr/parser.y
@@ -271,7 +271,8 @@ void yyerror(YYLTYPE * loc, yyscan_t scanner, ParseData * data, const char * err
%nonassoc EQ NEQ
%right UPDATE
%left NOT
-%left '+'
+%left '+' '-'
+%left '*' '/'
%right CONCAT
%nonassoc '?'
%nonassoc '~'
@@ -322,6 +323,9 @@ expr_op
l->push_back($3);
$$ = new ExprConcatStrings(false, l);
}
+ | expr_op '-' expr_op { $$ = new ExprApp(new ExprApp(new ExprVar(data->symbols.create("__sub")), $1), $3); }
+ | expr_op '*' expr_op { $$ = new ExprApp(new ExprApp(new ExprVar(data->symbols.create("__mul")), $1), $3); }
+ | expr_op '/' expr_op { $$ = new ExprApp(new ExprApp(new ExprVar(data->symbols.create("__div")), $1), $3); }
| expr_op CONCAT expr_op { $$ = new ExprOpConcatLists($1, $3); }
| expr_app
;
diff --git a/tests/lang/eval-okay-arithmetic.exp b/tests/lang/eval-okay-arithmetic.exp
index f625eb6ab..d03b13697 100644
--- a/tests/lang/eval-okay-arithmetic.exp
+++ b/tests/lang/eval-okay-arithmetic.exp
@@ -1 +1 @@
-1843
+2170
diff --git a/tests/lang/eval-okay-arithmetic.nix b/tests/lang/eval-okay-arithmetic.nix
index 76bef919b..70179c5d1 100644
--- a/tests/lang/eval-okay-arithmetic.nix
+++ b/tests/lang/eval-okay-arithmetic.nix
@@ -22,5 +22,11 @@ let {
[ (sum (range 1 50))
(123 + 456)
(0 + -10 + -(-11) + -x)
+ (10 - 7 - -2)
+ (10 - (6 - -1))
+ (10 - 1 + 2)
+ (3 * 4 * 5)
+ (56088 / 123 / 2)
+ (3 + 4 * const 5 0 - 6 / id 2)
];
}
diff --git a/tests/lang/lib.nix b/tests/lang/lib.nix
index 551b67aed..cdba2b947 100644
--- a/tests/lang/lib.nix
+++ b/tests/lang/lib.nix
@@ -49,4 +49,8 @@ rec {
if comp (head list2) (head list1) then [(head list2)] ++ mergeLists comp list1 (tail list2) else
[(head list1)] ++ mergeLists comp (tail list1) list2;
+ id = x: x;
+
+ const = x: y: x;
+
}