From dfedb9c573e6492092c8acab3267277624498d9a Mon Sep 17 00:00:00 2001
From: Lucas Bajolet <r4pass@hotmail.com>
Date: Wed, 27 May 2015 13:20:21 -0400
Subject: [PATCH] parser: Added u8 suffix for byte literal values

Signed-off-by: Lucas Bajolet <r4pass@hotmail.com>
---
 src/parser/nit.sablecc3xx   |   12 +++++++++
 src/parser/parser_nodes.nit |   57 +++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 69 insertions(+)

diff --git a/src/parser/nit.sablecc3xx b/src/parser/nit.sablecc3xx
index 4a90050..769f05b 100644
--- a/src/parser/nit.sablecc3xx
+++ b/src/parser/nit.sablecc3xx
@@ -203,6 +203,10 @@ number = digit+;
 hex_number = ('0x' | '0X') hexdigit+;
 bin_number = ('0b' | '0B') bindigit+;
 oct_number = ('0o' | '0O') octdigit+;
+bytenum = digit+ 'u8';
+hex_bytenum = ('0x' | '0X') hexdigit+ 'u8';
+bin_bytenum = ('0b' | '0B') bindigit+ 'u8';
+oct_bytenum = ('0o' | '0O') octdigit+ 'u8';
 float = digit* '.' digit+;
 string = '"' str_body '"' | '"' '"' '"' long_str_body lsend1 | ''' ''' ''' long_sstr_body ''' ''' ''';
 start_string = '"' str_body '{' | '"' '"' '"' long_str_body lsend2;
@@ -640,6 +644,10 @@ expr_single~nopar~nobra {-> expr}
 	| {hex_int} hex_number annotations_o {-> New expr.hex_int(hex_number, annotations_o.annotations)}
 	| {bin_int} bin_number annotations_o {-> New expr.bin_int(bin_number, annotations_o.annotations)}
 	| {oct_int} oct_number annotations_o {-> New expr.oct_int(oct_number, annotations_o.annotations)}
+	| {byte} bytenum annotations_o {-> New expr.dec_byte(bytenum, annotations_o.annotations)}
+	| {hex_byte} hex_bytenum annotations_o {-> New expr.hex_byte(hex_bytenum, annotations_o.annotations)}
+	| {bin_byte} bin_bytenum annotations_o {-> New expr.bin_byte(bin_bytenum, annotations_o.annotations)}
+	| {oct_byte} oct_bytenum annotations_o {-> New expr.oct_byte(oct_bytenum, annotations_o.annotations)}
 	| {float} float annotations_o {-> New expr.float(float, annotations_o.annotations)}
 	| {char} char annotations_o {-> New expr.char(char, annotations_o.annotations)}
 	| {string} string annotations_o {-> New expr.string(string, annotations_o.annotations)}
@@ -1007,6 +1015,10 @@ expr	= {block} expr* kwend?
 	| {hex_int} hex_number annotations?
 	| {bin_int} bin_number annotations?
 	| {oct_int} oct_number annotations?
+	| {dec_byte} bytenum annotations?
+	| {hex_byte} hex_bytenum annotations?
+	| {bin_byte} bin_bytenum annotations?
+	| {oct_byte} oct_bytenum annotations?
 	| {float} float annotations?
 	| {char} char annotations?
 	| {string} string annotations?
diff --git a/src/parser/parser_nodes.nit b/src/parser/parser_nodes.nit
index 2a2298e..6ec146f 100644
--- a/src/parser/parser_nodes.nit
+++ b/src/parser/parser_nodes.nit
@@ -956,6 +956,26 @@ class TOctNumber
 	super TokenLiteral
 end
 
+# A literal decimal byte
+class TBytenum
+	super TokenLiteral
+end
+
+# A literal hexadecimal byte
+class THexBytenum
+	super TokenLiteral
+end
+
+# A literal binary byte
+class TBinBytenum
+	super TokenLiteral
+end
+
+# A literal octal byte
+class TOctBytenum
+	super TokenLiteral
+end
+
 # A literal floating point number
 class TFloat
 	super TokenLiteral
@@ -2488,6 +2508,43 @@ class AOctIntExpr
 	var n_oct_number: TOctNumber is writable, noinit
 end
 
+# An byte literal
+class AByteExpr
+	super AExpr
+end
+
+# An byte literal in decimal format
+class ADecByteExpr
+	super AByteExpr
+
+	# The decimal token
+	var n_bytenum: TBytenum is writable, noinit
+end
+
+# An byte literal in hexadecimal format
+class AHexByteExpr
+	super AByteExpr
+
+	# The hexadecimal token
+	var n_hex_bytenum: THexBytenum is writable, noinit
+end
+
+# An byte literal in binary format
+class ABinByteExpr
+	super AByteExpr
+
+	# The binary token
+	var n_bin_bytenum: TBinBytenum is writable, noinit
+end
+
+# An byte literal in octal format
+class AOctByteExpr
+	super AByteExpr
+
+	# The octal token
+	var n_oct_bytenum: TOctBytenum is writable, noinit
+end
+
 # A float literal
 class AFloatExpr
 	super AExpr
-- 
1.7.9.5