From e1eb9c4ff11f6aa84746960679b3021bfedaac1d Mon Sep 17 00:00:00 2001
From: Delyan Angelov <delian66@gmail.com>
Date: Tue, 21 Jul 2020 15:58:17 +0300
Subject: [PATCH] vfmt: fix `x := *&int(ptr)`

---
 vlib/v/fmt/fmt.v                             | 2 +-
 vlib/v/fmt/tests/star__amp_int__cast_keep.vv | 5 +++++
 vlib/v/parser/pratt.v                        | 4 ++++
 3 files changed, 10 insertions(+), 1 deletion(-)
 create mode 100644 vlib/v/fmt/tests/star__amp_int__cast_keep.vv

diff --git a/vlib/v/fmt/fmt.v b/vlib/v/fmt/fmt.v
index df7548c9a4..d265099198 100644
--- a/vlib/v/fmt/fmt.v
+++ b/vlib/v/fmt/fmt.v
@@ -898,7 +898,7 @@ pub fn (mut f Fmt) expr(node ast.Expr) {
 		}
 		ast.PrefixExpr {
 			f.write(node.op.str())
-			f.expr(node.right)
+			f.prefix_expr_cast_expr( node.right )
 		}
 		ast.RangeExpr {
 			f.expr(node.low)
diff --git a/vlib/v/fmt/tests/star__amp_int__cast_keep.vv b/vlib/v/fmt/tests/star__amp_int__cast_keep.vv
new file mode 100644
index 0000000000..73312cd5e1
--- /dev/null
+++ b/vlib/v/fmt/tests/star__amp_int__cast_keep.vv
@@ -0,0 +1,5 @@
+fn main() {
+	body := [1, 2, 3]
+	size := *&int(body.data)
+	eprintln('size: $size')
+}
diff --git a/vlib/v/parser/pratt.v b/vlib/v/parser/pratt.v
index 7a3831bcb0..6a9084cabe 100644
--- a/vlib/v/parser/pratt.v
+++ b/vlib/v/parser/pratt.v
@@ -8,6 +8,10 @@ import v.table
 import v.token
 
 pub fn (mut p Parser) expr(precedence int) ast.Expr {
+	$if trace_parser ? {
+		tok_pos := p.tok.position()
+		eprintln('parsing file: ${p.file_name:-30} | tok.kind: ${p.tok.kind:-10} | tok.lit: ${p.tok.lit:-10} | tok_pos: ${tok_pos.str():-45} | expr($precedence)')
+	}
 	// println('\n\nparser.expr()')
 	mut typ := table.void_type
 	mut node := ast.Expr{}