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astgen.zig: fix nodeMayEvalToError

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This commit is contained in:
Matthew Borkowski 2021-10-23 18:49:23 -04:00
parent ee98d87008
commit 096763de98
1 changed files with 14 additions and 7 deletions
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21
src/AstGen.zig
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@ -8514,10 +8514,10 @@ fn nodeMayEvalToError(tree: *const Ast, start_node: Ast.Node.Index) enum { never
.unwrap_optional,
=> node = node_datas[node].lhs,
// Forward the question to the RHS sub-expression.
// LHS sub-expression may still be an error under the outer optional or error union
.@"catch",
.@"orelse",
=> node = node_datas[node].rhs,
=> return .maybe,
.block_two,
.block_two_semicolon,
@ -8544,11 +8544,18 @@ fn nodeMayEvalToError(tree: *const Ast, start_node: Ast.Node.Index) enum { never
// If the builtin is an invalid name, we don't cause an error here; instead
// let it pass, and the error will be "invalid builtin function" later.
const builtin_info = BuiltinFn.list.get(builtin_name) orelse return .maybe;
if (builtin_info.tag == .err_set_cast) {
return .always;
} else {
return .never;
}
return switch (builtin_info.tag) {
.as,
.call,
.field,
=> .maybe,
.err_set_cast,
.int_to_error,
=> .always,
else => .never,
};
},
}
}