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checker: use autocasting in complex if conditions (#18753)

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yuyi 2023-07-03 16:03:05 +08:00 committed by GitHub
parent c48ae86132
commit df3c85eb36
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1 changed files with 8 additions and 13 deletions
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21
vlib/v/checker/comptime.v
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@ -680,8 +680,7 @@ fn (mut c Checker) comptime_if_branch(cond ast.Expr, pos token.Pos) ComptimeBran
} else if cond.left in [ast.Ident, ast.SelectorExpr, ast.TypeNode] {
// `$if method.@type is string`
c.expr(cond.left)
if cond.left is ast.SelectorExpr
&& c.is_comptime_selector_type(cond.left as ast.SelectorExpr)
if cond.left is ast.SelectorExpr && c.is_comptime_selector_type(cond.left)
&& cond.right is ast.ComptimeType {
checked_type := c.get_comptime_var_type(cond.left)
return if c.table.is_comptime_type(checked_type, cond.right) {
@ -703,10 +702,10 @@ fn (mut c Checker) comptime_if_branch(cond ast.Expr, pos token.Pos) ComptimeBran
// $if method.args.len == 1
return .unknown
} else if cond.left is ast.SelectorExpr
&& c.check_comptime_is_field_selector_bool(cond.left as ast.SelectorExpr) {
&& c.check_comptime_is_field_selector_bool(cond.left) {
// field.is_public (from T.fields)
} else if cond.right is ast.SelectorExpr
&& c.check_comptime_is_field_selector_bool(cond.right as ast.SelectorExpr) {
&& c.check_comptime_is_field_selector_bool(cond.right) {
// field.is_public (from T.fields)
} else if cond.left is ast.Ident {
// $if version == 2
@ -757,12 +756,9 @@ fn (mut c Checker) comptime_if_branch(cond ast.Expr, pos token.Pos) ComptimeBran
}
}
.gt, .lt, .ge, .le {
if cond.left is ast.SelectorExpr && cond.right is ast.IntegerLiteral {
if c.is_comptime_selector_field_name(cond.left as ast.SelectorExpr,
'indirections')
{
return .unknown
}
if cond.left is ast.SelectorExpr && cond.right is ast.IntegerLiteral
&& c.is_comptime_selector_field_name(cond.left, 'indirections') {
return .unknown
}
c.error('invalid `\$if` condition', cond.pos)
}
@ -905,9 +901,8 @@ fn (mut c Checker) comptime_if_branch(cond ast.Expr, pos token.Pos) ComptimeBran
// get_comptime_selector_type retrieves the var.$(field.name) type when field_name is 'name' otherwise default_type is returned
[inline]
fn (mut c Checker) get_comptime_selector_type(node ast.ComptimeSelector, default_type ast.Type) ast.Type {
if node.field_expr is ast.SelectorExpr
&& c.check_comptime_is_field_selector(node.field_expr as ast.SelectorExpr)
&& (node.field_expr as ast.SelectorExpr).field_name == 'name' {
if node.field_expr is ast.SelectorExpr && c.check_comptime_is_field_selector(node.field_expr)
&& node.field_expr.field_name == 'name' {
return c.unwrap_generic(c.comptime_fields_default_type)
}
return default_type