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Attach pos to if expression errors

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Domen Kožar 2020-04-09 09:45:15 +02:00
parent 74f94d6640
commit a693a9fa4b
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3 changed files with 4 additions and 3 deletions
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2
src/libexpr/eval.cc
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@ -1256,7 +1256,7 @@ void ExprWith::eval(EvalState & state, Env & env, Value & v)
void ExprIf::eval(EvalState & state, Env & env, Value & v)
{
(state.evalBool(env, cond) ? then : else_)->eval(state, env, v);
(state.evalBool(env, cond, pos) ? then : else_)->eval(state, env, v);
}

3
src/libexpr/nixexpr.hh
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@ -262,8 +262,9 @@ struct ExprWith : Expr
struct ExprIf : Expr
{
Pos pos;
Expr * cond, * then, * else_;
ExprIf(Expr * cond, Expr * then, Expr * else_) : cond(cond), then(then), else_(else_) { };
ExprIf(const Pos & pos, Expr * cond, Expr * then, Expr * else_) : pos(pos), cond(cond), then(then), else_(else_) { };
COMMON_METHODS
};

2
src/libexpr/parser.y
View file

@ -335,7 +335,7 @@ expr_function
;
expr_if
: IF expr THEN expr ELSE expr { $$ = new ExprIf($2, $4, $6); }
: IF expr THEN expr ELSE expr { $$ = new ExprIf(CUR_POS, $2, $4, $6); }
| expr_op
;