LuaVM/parser_prefixparselets.lua at master · GamerGambit/LuaVM · GitHub

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
localfunctionnewLiteral(type, value)
return {
type="literal-" ..type,
value=value
	}
end

localfunctionnewIdentifier(identifier)
return {
type="identifier",
identifier=identifier
	}
end

localfunctionnewUnaryPrefix(symbol, right)
return {
type="unary-prefix",
symbol=symbol,
right=right
	}
end

return {
	{
token= { type=TokenType.OPERATOR, contents='-' },
func=function(parser, token) returnnewUnaryPrefix('-', parser:parseExpression(14)) end
	},

	{
token= { type=TokenType.OPERATOR, contents="--" },
func=function(parser, token) returnnewUnaryPrefix("--", parser:parseExpression(14)) end
	},

	{
token= { type=TokenType.OPERATOR, contents='+' },
func=function(parser, token) returnnewUnaryPrefix('+', parser:parseExpression(14)) end
	},

	{
token= { type=TokenType.OPERATOR, contents="++" },
func=function(parser, token) returnnewUnaryPrefix("++", parser:parseExpression(14)) end
	},

	{
token= { type=TokenType.OPERATOR, contents='~' },
func=function(parser, token) returnnewUnaryPrefix('!', parser:parseExpression(14)) end
	},

	{
token= { type=TokenType.OPERATOR, contents='!' },
func=function(parser, token) returnnewUnaryPrefix('!', parser:parseExpression(14)) end
	},

	{
token= { type=TokenType.OPERATOR, contents='#' },
func=function(parser, token) returnnewUnaryPrefix('#', parser:parseExpression(14)) end
	},

	{
token= { type=TokenType.BRK_PAREN, contents='(' },
func=function(parser, token)
localexpr=parser:parseExpression(0)
parser:expect(TokenType.BRK_PAREN, ')')
returnexpr
end
	},

	{
token= { type=TokenType.IDENTIFIER },
func=function(parser, token) returnnewIdentifier(token.contents) end
	},

	{
token= { type=TokenType.LITERAL_N },
func=function(parser, token) returnnewLiteral("number", token.contents) end
	},

	{
token= { type=TokenType.LITERAL_S },
func=function(parser, token) returnnewLiteral("string", token.contents) end
	},

	{
token= { type=TokenType.KEYWORD, contents="true" },
func=function(parser, token) returnnewLiteral("boolean", token.contents) end
	},

	{
token= { type=TokenType.KEYWORD, contents="false" },
func=function(parser, token) returnnewLiteral("boolean", token.contents) end
	},

	{
token= { type=TokenType.KEYWORD, contents="null" },
func=function(parser, token) returnnewLiteral("null") end
	}
}