From 63b2d4be9935ee48b342b7fe27f3f33bb9b7c6b3 Mon Sep 17 00:00:00 2001
From: yuyi <yuyi98@163.com>
Date: Tue, 2 Jun 2020 16:40:24 +0800
Subject: [PATCH] cgen: make >8 indent levels work

---
 vlib/v/gen/cgen.v                 | 17 ++++++++++++++---
 vlib/v/tests/if_expression_test.v | 28 ++++++++++++++++++++++++++++
 2 files changed, 42 insertions(+), 3 deletions(-)

diff --git a/vlib/v/gen/cgen.v b/vlib/v/gen/cgen.v
index 0aafe8efa9..b83714874d 100644
--- a/vlib/v/gen/cgen.v
+++ b/vlib/v/gen/cgen.v
@@ -517,8 +517,13 @@ pub fn (g Gen) save() {
 
 pub fn (mut g Gen) write(s string) {
 	if g.indent > 0 && g.empty_line {
-		g.out.write(tabs[g.indent])
-		// g.line_len += g.indent * 4
+		if g.indent < tabs.len {
+			g.out.write(tabs[g.indent])
+		} else {
+			for _ in 0 .. g.indent {
+				g.out.write('\t')
+			}
+		}
 	}
 	g.out.write(s)
 	g.empty_line = false
@@ -526,7 +531,13 @@ pub fn (mut g Gen) write(s string) {
 
 pub fn (mut g Gen) writeln(s string) {
 	if g.indent > 0 && g.empty_line {
-		g.out.write(tabs[g.indent])
+		if g.indent < tabs.len {
+			g.out.write(tabs[g.indent])
+		} else {
+			for _ in 0 .. g.indent {
+				g.out.write('\t')
+			}
+		}
 	}
 	g.out.writeln(s)
 	g.empty_line = true
diff --git a/vlib/v/tests/if_expression_test.v b/vlib/v/tests/if_expression_test.v
index 3bd8b0062b..96c8ca611d 100644
--- a/vlib/v/tests/if_expression_test.v
+++ b/vlib/v/tests/if_expression_test.v
@@ -128,3 +128,31 @@ fn test_complex_nested_if_expressions() {
 	}
 	assert a == false
 }
+
+fn test_lots_of_if_expressions() {
+	mut a := 0
+	if true {
+		if true {
+			if true {
+				if true {
+					if true {
+						if true {
+							if true {
+								if true {
+									if true {
+										if true {
+											if true {
+												a = 1
+											}
+										}
+									}
+								}
+							}
+						}
+					}
+				}
+			}
+		}
+	}
+	assert a == 1
+}