cgen: extract g.new_ctemp_var/2, g.new_ctemp_var_then_gen/2 and g.gen_ctemp_var from gen_assert_stmt

vlib/v/gen/cgen.v

@@ -1275,35 +1275,13 @@ fn (mut g Gen) gen_attrs(attrs []table.Attr) {
 fn (mut g Gen) gen_assert_stmt(original_assert_statement ast.AssertStmt) {
 	mut a := original_assert_statement
 	g.writeln('// assert')
-	mut tl_name := ''
-	mut tr_name := ''
 	if a.expr is ast.InfixExpr {
 		mut aie := a.expr as ast.InfixExpr
 		if aie.left is ast.CallExpr {
-			tl_styp := g.typ(aie.left_type)
+			aie.left = g.new_ctemp_var_then_gen(aie.left, aie.left_type)
-			tl_name = g.new_tmp_var()
-			g.write('$tl_styp $tl_name = ')
-			g.expr(aie.left)
-			g.writeln(';')
-			aie.left = ast.Expr(ast.CTempVar{
-				name: tl_name
-				typ: aie.left_type
-				is_ptr: aie.left_type.is_ptr()
-				orig: aie.left
-			})
 		}
 		if aie.right is ast.CallExpr {
-			tr_styp := g.typ(aie.right_type)
+			aie.right = g.new_ctemp_var_then_gen(aie.right, aie.right_type)
-			tr_name = g.new_tmp_var()
-			g.write('$tr_styp $tr_name = ')
-			g.expr(aie.right)
-			g.writeln(';')
-			aie.right = ast.Expr(ast.CTempVar{
-				name: tr_name
-				typ: aie.right_type
-				is_ptr: aie.right_type.is_ptr()
-				orig: aie.right
-			})
 		}
 	}
 	g.inside_ternary++

vlib/v/gen/ctempvars.v

@@ -0,0 +1,26 @@
+module gen
+
+import v.ast
+import v.table
+
+fn (mut g Gen) new_ctemp_var(expr ast.Expr, expr_type table.Type) ast.CTempVar {
+	return ast.CTempVar{
+		name: g.new_tmp_var()
+		typ: expr_type
+		is_ptr: expr_type.is_ptr()
+		orig: expr
+	}
+}
+
+fn (mut g Gen) new_ctemp_var_then_gen(expr ast.Expr, expr_type table.Type) ast.CTempVar {
+	x := g.new_ctemp_var(expr, expr_type)
+	g.gen_ctemp_var(x)
+	return x
+}
+
+fn (mut g Gen) gen_ctemp_var(tvar ast.CTempVar) {
+	styp := g.typ(tvar.typ)
+	g.write('$styp $tvar.name = ')
+	g.expr(tvar.orig)
+	g.writeln(';')
+}