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checker: handle json.decode correctly

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This commit is contained in:
Alexander Medvednikov 2020-05-14 18:30:30 +02:00
parent f49ef39708
commit 0f251e9ede
2 changed files with 5 additions and 5 deletions
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4
vlib/v/checker/checker.v
View File

@ -935,8 +935,8 @@ pub fn (mut c Checker) check_expr_opt_call(x ast.Expr, xtype table.Type, is_retu
ast.CallExpr {
if it.return_type.flag_is(.optional) {
c.check_or_block(it, xtype, is_return_used)
} else if it.or_block.is_used {
c.error('unexpected `or` block, the function does not return an optional',
} else if it.or_block.is_used && it.name != 'json.decode' { // TODO remove decode hack
c.error('unexpected `or` block, the function `$it.name` does not return an optional',
it.pos)
}
}

6
vlib/v/parser/fn.v
View File

@ -20,10 +20,11 @@ pub fn (mut p Parser) call_expr(is_c, is_js bool, mod string) ast.CallExpr {
} else {
name
}
mut is_or_block_used := false
if fn_name == 'json.decode' {
// Makes name_expr() parse the type (`User` in `json.decode(User, txt)`)`
p.expecting_type = true
p.expecting_type = true // Makes name_expr() parse the type (`User` in `json.decode(User, txt)`)`
p.expr_mod = ''
is_or_block_used = true
}
p.check(.lpar)
args := p.call_args()
@ -35,7 +36,6 @@ pub fn (mut p Parser) call_expr(is_c, is_js bool, mod string) ast.CallExpr {
len: last_pos.pos - first_pos.pos + last_pos.len
}
mut or_stmts := []ast.Stmt{}
mut is_or_block_used := false
if p.tok.kind == .key_orelse {
p.inside_or_expr = true
p.next()