Mercurial > python-compiler.rs

annotate src/python_ast.rs @ 67:8ce78e2ba48c

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Implement class keywords.
author Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
date Mon, 13 Jun 2016 01:43:19 +0100
parents 32550e12aedf
children c59ad5ccd8a6
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1 #![allow(non_camel_case_types)]
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2
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3 #[derive(Clone, Debug)]
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4 pub struct Module {
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5 pub name: String,
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6 pub statements: Vec<stmt>,
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7 }
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8
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9 #[derive(Clone, Debug, PartialEq, Eq, Hash)]
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10 pub enum stmt {
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11 // FunctionDef(identifier name, arguments args, stmt* body, expr* decorator_list, expr? returns)
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12 FunctionDef(String, arguments, Vec<stmt>, Vec<expr>, Option<expr>),
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13
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14 // AsyncFunctionDef(identifier name, arguments args, stmt* body, expr* decorator_list, expr? returns)
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15 //AsyncFunctionDef(String/*, arguments, Vec<expr>),
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16
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17 // ClassDef(identifier name, expr* bases, keyword* keywords, stmt* body, expr* decorator_list)
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18 ClassDef(String, Vec<expr>, Vec<keyword>, Vec<stmt>, Vec<expr>),
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19
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20 // Return(expr? value)
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21 Return(Option<expr>),
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22
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23 // Delete(expr* targets)
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24 Delete(Vec<expr>),
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25
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26 // Assign(expr* targets, expr value)
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27 Assign(Vec<expr>, expr),
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28
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29 //AugAssign(expr target, operator op, expr value)
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30 AugAssign(expr, operator, expr),
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31
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32 // For(expr target, expr iter, stmt* body, stmt* orelse)
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33 For(expr, expr, Vec<stmt>, Vec<stmt>),
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34
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35 // AsyncFor(expr target, expr iter, stmt* body, stmt* orelse)
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36 //AsyncFor(expr, expr, Vec<stmt>, Vec<stmt>),
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37
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38 // While(expr test, stmt* body, stmt* orelse)
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39 While(expr, Vec<stmt>, Vec<stmt>),
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40
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41 // If(expr test, stmt* body, stmt* orelse)
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42 If(expr, Vec<stmt>, Vec<stmt>),
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43
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44 // With(withitem* items, stmt* body)
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45 With(Vec<withitem>, Vec<stmt>),
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46
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47 // AsyncWith(withitem* items, stmt* body)
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48 //AsyncWith(Vec<withitem>, Vec<stmt>)
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49
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50 // Raise(expr? exc, expr? cause)
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51 Raise(Option<expr>, Option<expr>),
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52
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53 // Try(stmt* body, excepthandler* handlers, stmt* orelse, stmt* finalbody)
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54 //Try(Vec<stmt>, Vec<excepthandler>, Vec<stmt>, Vec<stmt>)
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55
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56 // Assert(expr test, expr? msg)
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57 Assert(expr, Option<expr>),
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58
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59 // Import(alias* names)
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60 Import(Vec<alias>),
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61
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62 // ImportFrom(identifier? module, alias* names, int? level)
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63 ImportFrom(String, Vec<alias>, Option<usize>),
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64
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65 // Global(identifier* names)
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66 Global(Vec<String>),
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67
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68 // Nonlocal(identifier* names)
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69 Nonlocal(Vec<String>),
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70
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71 // expr(expr value)
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72 Expr(expr),
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73
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74 // Pass | Break | Continue
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75 Pass,
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76 Break,
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77 Continue
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78 }
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79
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80 #[derive(Clone, Debug, PartialEq, Eq, Hash)]
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81 pub enum expr {
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82 BoolOp(boolop, Vec<expr>),
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83 BinOp(Box<expr>, operator, Box<expr>),
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84 UnaryOp(unaryop, Box<expr>),
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85 //Lambda(arguments, Box<expr>)
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86 //IfExp(Box<expr>, Box<expr>, Box<expr>)
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87 //Dict(Vec<expr>, Vec<expr>)
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88 //Set(Vec<expr>)
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89 ListComp(Box<expr>, Vec<comprehension>),
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90 //SetComp(Box<expr>, Vec<comprehension>)
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91 DictComp(Box<expr>, Box<expr>, Vec<comprehension>),
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92 //GeneratorExp(Box<expr>, Vec<comprehension>)
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93
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94 // the grammar constrains where yield expressions can occur
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95 //Await(expr value)
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96 //Yield(expr? value)
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97 //YieldFrom(expr value)
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98
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99 // need sequences for compare to distinguish between
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100 // x < 4 < 3 and (x < 4) < 3
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101 Compare(Box<expr>, Vec<cmpop>, Vec<expr>),
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102
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103 Call(Box<expr>, Vec<expr>, Vec<keyword>),
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104 Num(String),
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105 Str(String),
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106 //Bytes(String),
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107 NameConstant(String),
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108 Ellipsis,
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109
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110 // the following expression can appear in assignment context
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111 Attribute(Box<expr>, String, expr_context),
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112 //Subscript(Box<expr>, slice, expr_context),
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113 //Starred(Box<expr>, expr_context),
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114 Name(String, expr_context),
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115 List(Vec<expr>, expr_context),
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116 Tuple(Vec<expr>, expr_context),
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117 }
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118
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119 #[derive(Clone, Debug, PartialEq, Eq, Hash)]
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120 pub enum expr_context {
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121 Load,
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122 Store,
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123 Del,
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124 AugLoad,
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125 AugStore,
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126 Param
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127 }
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128
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129 #[derive(Clone, Debug, PartialEq, Eq, Hash)]
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130 pub enum slice {
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131 Slice(Option<expr>, Option<expr>, Option<expr>),
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132 ExtSlice(Vec<slice>),
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133 Index(expr)
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134 }
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135
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136 #[derive(Clone, Debug, PartialEq, Eq, Hash)]
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137 pub enum boolop {
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138 And,
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139 Or
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140 }
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141
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142 #[derive(Clone, Debug, PartialEq, Eq, Hash)]
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143 pub enum operator {
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144 Add,
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145 Sub,
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146 Mult,
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147 MatMult,
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148 Div,
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149 Mod,
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150 Pow,
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151 LShift,
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152 RShift,
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153 BitOr,
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154 BitXor,
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155 BitAnd,
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156 FloorDiv
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157 }
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158
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159 #[derive(Clone, Debug, PartialEq, Eq, Hash)]
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160 pub enum unaryop {
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161 Invert,
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162 Not,
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163 UAdd,
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164 USub
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165 }
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166
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167 #[derive(Clone, Debug, PartialEq, Eq, Hash)]
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168 pub enum cmpop {
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169 Eq,
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170 NotEq,
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171 Lt,
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172 LtE,
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173 Gt,
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174 GtE,
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175 Is,
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176 IsNot,
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177 In,
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178 NotIn
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179 }
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180
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181 #[derive(Clone, Debug, PartialEq, Eq, Hash)]
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182 pub struct comprehension {
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183 pub target: expr,
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184 pub iter: expr,
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185 pub ifs: Vec<expr>
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186 }
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187
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188 #[derive(Clone, Debug, PartialEq, Eq, Hash)]
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189 pub enum excepthandler {
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190 ExceptHandler(Option<expr>, Option<String>, Vec<stmt>)
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191 }
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192
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193 #[derive(Clone, Debug, PartialEq, Eq, Hash)]
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194 pub struct arguments {
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195 pub args: Vec<arg>,
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196 pub vararg: Option<arg>,
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197 pub kwonlyargs: Vec<arg>,
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198 pub kw_defaults: Vec<Option<expr>>,
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199 pub kwarg: Option<arg>,
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200 pub defaults: Vec<expr>
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201 }
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202
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203 #[derive(Clone, Debug, PartialEq, Eq, Hash)]
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204 pub struct arg {
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205 pub arg: String,
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206 pub annotation: Option<expr>
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207 }
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208
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209 // keyword arguments supplied to call (NULL identifier for **kwargs)
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210 #[derive(Clone, Debug, PartialEq, Eq, Hash)]
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211 pub struct keyword {
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212 pub arg: Option<String>,
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213 pub value: expr
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214 }
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215
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216 // import name with optional 'as' alias.
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217 #[derive(Clone, Debug, PartialEq, Eq, Hash)]
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218 pub struct alias {
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219 pub name: String,
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220 pub asname: Option<String>
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221 }
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222
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223 #[derive(Clone, Debug, PartialEq, Eq, Hash)]
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224 pub struct withitem {
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225 pub context_expr: expr,
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226 pub optional_vars: Option<expr>
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227 }