catala/tests/test_typing/bad/err2.catala_en
Louis Gesbert fea01cfe4c Add overloaded operators for the common operations
This uses the same disambiguation mechanism put in place for
structures, calling the typer on individual rules on the desugared AST
to propagate types, in order to resolve ambiguous operators like `+`
to their strongly typed counterparts (`+!`, `+.`, `+$`, `+@`, `+$`) in
the translation to scopelang.

The patch includes some normalisation of the definition of all the
operators, and classifies them based on their typing policy instead of
their arity. It also adds a little more flexibility:
- a couple new operators, like `-` on date and duration
- optional type annotation on some aggregation constructions

The `Shared_ast` lib is also lightly restructured, with the `Expr`
module split into `Type`, `Operator` and `Expr`.
2022-12-13 11:55:24 +01:00

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> Include: common.catala_en
```catala
scope S:
definition z equals [
Structure { -- i: 3 -- e: Int content x };
Structure { -- i: 4 -- e: y };
Structure { -- i: 5 -- e: Dat content |1970-01-01| }
]
definition a equals number of (z ++ 1.1) / 2
```
```catala-test-inline
$ catala Typecheck
[ERROR] Error during typechecking, incompatible types:
--> decimal
--> collection
Error coming from typechecking the following expression:
┌─⯈ tests/test_typing/bad/err2.catala_en:10.38-41:
└──┐
10 │ definition a equals number of (z ++ 1.1) / 2
│ ‾‾‾
Type decimal coming from expression:
┌─⯈ tests/test_typing/bad/err2.catala_en:10.38-41:
└──┐
10 │ definition a equals number of (z ++ 1.1) / 2
│ ‾‾‾
Type collection coming from expression:
┌─⯈ tests/test_typing/bad/err2.catala_en:10.35-37:
└──┐
10 │ definition a equals number of (z ++ 1.1) / 2
│ ‾‾
#return code 255#
```