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[Tolk] bool type (-1/0 int under the hood)

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Comparison operators `== / >= /...` return `bool`.
Logical operators `&& ||` return bool.
Constants `true` and `false` have the `bool` type.
Lots of stdlib functions return `bool`, not `int`.

Operator `!x` supports both `int` and `bool`.
Condition of `if` accepts both `int` and `bool`.
Arithmetic operators are restricted to integers.
Logical `&&` and `||` accept both `bool` and `int`.

No arithmetic operations with bools allowed (only bitwise and logical).
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tolk-vm 2025-01-13 15:21:24 +07:00
parent 799e2d1265
commit 974d76c5f6
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33 changed files with 764 additions and 212 deletions
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tolk/pipe-ast-to-legacy.cpp
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@ -586,6 +586,8 @@ static void process_do_while_statement(V<ast_do_while_statement> v, CodeBlob& co
until_cond = createV<ast_binary_operator>(cond->loc, "<", tok_lt, v_geq->get_lhs(), v_geq->get_rhs());
} else if (auto v_gt = cond->try_as<ast_binary_operator>(); v_gt && v_gt->tok == tok_gt) {
until_cond = createV<ast_binary_operator>(cond->loc, "<=", tok_geq, v_gt->get_lhs(), v_gt->get_rhs());
} else if (cond->inferred_type == TypeDataBool::create()) {
until_cond = createV<ast_unary_operator>(cond->loc, "!b", tok_logical_not, cond);
} else {
until_cond = createV<ast_unary_operator>(cond->loc, "!", tok_logical_not, cond);
}