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checker/cgen: as fixes

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This commit is contained in:
Alexander Medvednikov 2020-04-25 18:40:05 +02:00
parent c26e83f58a
commit b7e5be41f5
2 changed files with 18 additions and 7 deletions
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7
vlib/v/checker/checker.v
View File

@ -1271,10 +1271,13 @@ pub fn (mut c Checker) expr(node ast.Expr) table.Type {
c.error('cannot cast `$expr_type_sym.name` to `$type_sym.name`', it.pos)
// c.error('only $info.variants can be casted to `$typ`', it.pos)
}
} else {
}
//
else {
c.error('cannot cast non sum type `$type_sym.name` using `as`', it.pos)
}
return it.typ
return it.typ.to_ptr()
//return it.typ
}
ast.AssignExpr {
c.assign_expr(mut it)

18
vlib/v/gen/cgen.v
View File

@ -1993,7 +1993,7 @@ fn (mut g Gen) const_decl_simple_define(name, val string) {
}
fn (mut g Gen) struct_init(struct_init ast.StructInit) {
mut info := table.Struct{}
mut info := &table.Struct{}
mut is_struct := false
sym := g.table.get_type_symbol(struct_init.typ)
if sym.kind == .struct_ {
@ -2977,17 +2977,25 @@ fn (mut g Gen) as_cast(node ast.AsCast) {
g.expr(node.expr)
g.write('.obj')
*/
g.write('/* as */ *($styp*)__as_cast(')
dot := if node.expr_type.is_ptr() { '->' } else { '.' }
g.write('/* as */ ($styp*)__as_cast(')
g.expr(node.expr)
g.write('.obj, ')
g.write(dot)
g.write('obj, ')
g.expr(node.expr)
g.write('.typ, /*expected:*/$node.typ)')
g.write(dot)
g.write('typ, /*expected:*/$node.typ)')
}
}
fn (mut g Gen) is_expr(node ast.InfixExpr) {
g.expr(node.left)
g.write('.typ == ')
if node.left_type.is_ptr() {
g.write('->')
} else {
g.write('.')
}
g.write('typ == ')
g.expr(node.right)
}