From 9c43d36513ff1ed6b20902e557c11d55d0a9de7c Mon Sep 17 00:00:00 2001
From: Delyan Angelov <delian66@gmail.com>
Date: Sun, 12 Jul 2020 12:56:01 +0300
Subject: [PATCH] parser,checker: add `-d trace_parser`, `-d trace_checker`

---
 vlib/v/checker/checker.v | 8 ++++----
 vlib/v/parser/parser.v   | 8 ++++++++
 2 files changed, 12 insertions(+), 4 deletions(-)

diff --git a/vlib/v/checker/checker.v b/vlib/v/checker/checker.v
index b4135680ff..689e0142f8 100644
--- a/vlib/v/checker/checker.v
+++ b/vlib/v/checker/checker.v
@@ -1813,6 +1813,10 @@ fn is_const_integer(cfield ast.ConstField) ?ast.IntegerLiteral {
 }
 
 fn (mut c Checker) stmt(node ast.Stmt) {
+	$if trace_checker? {
+		stmt_pos := node.position()
+		eprintln('checking file: ${c.file.path:-30} | stmt pos: ${stmt_pos.str():-45} | stmt')
+	}
 	// c.expected_type = table.void_type
 	match mut node {
 		ast.AssertStmt {
@@ -2044,10 +2048,6 @@ fn (mut c Checker) stmts(stmts []ast.Stmt) {
 	}
 	c.expected_type = table.void_type
 	for stmt in stmts {
-		$if debug_stmts? {
-			stmt_pos := stmt.position()
-			eprintln('file: ${c.file.path:-30} | stmt pos: $stmt_pos')
-		}
 		if c.scope_returns {
 			if unreachable.line_nr == -1 {
 				unreachable = stmt.position()
diff --git a/vlib/v/parser/parser.v b/vlib/v/parser/parser.v
index 6508822a4b..77bf7656a5 100644
--- a/vlib/v/parser/parser.v
+++ b/vlib/v/parser/parser.v
@@ -372,6 +372,10 @@ fn (mut p Parser) check_name() string {
 }
 
 pub fn (mut p Parser) top_stmt() ast.Stmt {
+	$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} | top_stmt')
+	}
 	match p.tok.kind {
 		.key_pub {
 			match p.peek_tok.kind {
@@ -496,6 +500,10 @@ pub fn (mut p Parser) eat_comments() []ast.Comment {
 }
 
 pub fn (mut p Parser) stmt(is_top_level bool) ast.Stmt {
+	$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: ${tok_pos.str():-45} | stmt($is_top_level)')
+	}
 	p.is_stmt_ident = p.tok.kind == .name
 	match p.tok.kind {
 		.lcbr {