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checker: protect against stackoverflows due to deep expr recursion

pull/5295/head
Delyan Angelov 2020-06-08 20:35:27 +03:00
parent 30f1c6bad5
commit 99f311cc5f
1 changed files with 5 additions and 5 deletions
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10
vlib/v/checker/checker.v
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@ -1765,14 +1765,14 @@ pub fn (c &Checker) unwrap_generic(typ table.Type) table.Type {
// TODO node must be mut // TODO node must be mut
pub fn (mut c Checker) expr(node ast.Expr) table.Type { pub fn (mut c Checker) expr(node ast.Expr) table.Type {
/*
c.expr_level++ c.expr_level++
defer { c.expr_level -- } defer { c.expr_level -- }
if c.expr_level > 20 { if c.expr_level > 200 {
c.warn('checker: too many expr levels', node.position()) c.error('checker: too many expr levels: $c.expr_level ', node.position())
//panic('checker: too many expr levels') return table.void_type
} }
*/
match mut node { match mut node {
ast.AnonFn { ast.AnonFn {
keep_fn := c.cur_fn keep_fn := c.cur_fn