use sumtype instead of two fields

src/c2v.v

@@ -1758,19 +1758,20 @@ fn (mut c C2V) expr(_node &Node) string {
 		return ''
 	}
 	if node.kindof(.integer_literal) {
-		if c.returning_bool && node.value in ['1', '0'] {
-			if node.value == '1' {
+		value := node.value.to_str()
+		if c.returning_bool && value in ['1', '0'] {
+			if value == '1' {
 				c.gen('true')
 			} else {
 				c.gen('false')
 			}
 		} else {
-			c.gen(node.value)
+			c.gen(value)
 		}
 	}
 	// 'a'
 	else if node.kindof(.character_literal) {
-		match rune(node.value_number) {
+		match rune(node.value as int) {
 			`\0` { c.gen('`\\0`') }
 			`\`` { c.gen('`\\``') }
 			`'` { c.gen("`\\'`") }
@@ -1783,12 +1784,12 @@ fn (mut c C2V) expr(_node &Node) string {
 			`\r` { c.gen('`\\r`') }
 			`\t` { c.gen('`\\t`') }
 			`\v` { c.gen('`\\v`') }
-			else { c.gen('`' + rune(node.value_number).str() + '`') }
+			else { c.gen('`' + rune(node.value as int).str() + '`') }
 		}
 	}
 	// 1e80
 	else if node.kindof(.floating_literal) {
-		c.gen(node.value)
+		c.gen(node.value.to_str())
 	} else if node.kindof(.constant_expr) {
 		n := node.try_get_next_child() or {
 			println(add_place_data_to_error(err))
@@ -1903,7 +1904,7 @@ fn (mut c C2V) expr(_node &Node) string {
 	}
 	// "string literal"
 	else if node.kindof(.string_literal) {
-		str := node.value
+		str := node.value.to_str()
 		// "a" => 'a'
 		no_quotes := str.substr(1, str.len - 1)
 		if no_quotes.contains("'") {
@@ -2083,7 +2084,7 @@ fn (mut c C2V) expr(_node &Node) string {
 		print_backtrace()
 		exit(1)
 	}
-	return node.value // get_val(0)
+	return node.value.to_str() // get_val(0)
 }
 
 fn (mut c C2V) name_expr(node &Node) {

src/cpp.v

@@ -142,7 +142,7 @@ fn (mut c C2V) cpp_expr(_node &Node) bool {
 				bad_node
 			}
 
-			c.gen(str_lit.value) // get_val(-1))
+			c.gen(str_lit.value as string) // get_val(-1))
 		}
 	} else if node.kindof(.unresolved_lookup_expr) {
 	} else if node.kindof(.cxx_try_stmt) {
@@ -165,7 +165,7 @@ fn (mut c C2V) cpp_expr(_node &Node) bool {
 		c.gen('this')
 	} else if node.kindof(.cxx_bool_literal_expr) {
 		val := node.value // get_val(-1)
-		c.gen(val)
+		c.gen(val as string)
 	} else if node.kindof(.cxx_null_ptr_literal_expr) {
 		c.gen('nullptr')
 	} else if node.kindof(.cxx_functional_cast_expr) {

src/node.v

@@ -3,6 +3,8 @@
 
 module main
 
+type Value = string | int
+
 // vfmt off
 struct Node {
 	id                   string
@@ -13,8 +15,7 @@ struct Node {
 	class_modifier       string       		@[json: 'storageClass']
 	tags                 string       		@[json: 'tagUsed']
 	initialization_type  string       		@[json: 'init'] 				// "c" => "cinit"
-	value                string 										// e.g. "777" for IntegerLiteral
-	value_number         int          		@[json: 'value'] 			// For CharacterLiterals, since `value` is a number there, not at string
+	value                Value 				@[json: 'value'] 			// For CharacterLiterals, since `value` is a number there, not at string
 	opcode               string 										// e.g. "+" in BinaryOperator
 	ast_argument_type    AstJsonType  		@[json: 'argType']
 	declaration_id       string       		@[json: 'declId'] 			// for goto labels
@@ -93,6 +94,14 @@ const bad_node = Node{
 	kind: .bad
 }
 
+fn (value Value) to_str() string {
+	if value is int {
+		return value.str()
+	} else {
+		return value as string
+	}
+}
+
 fn (node Node) kindof(expected_kind NodeKind) bool {
 	return node.kind == expected_kind
 }