Mercurial > python-compiler.rs

annotate src/ast_dump.rs @ 76:efd42fc280e8

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Add ast.Set.
author Bastien Orivel <eijebong@bananium.fr>
date Mon, 13 Jun 2016 19:19:49 +0200
parents 1abc8ca9f30b
children 7d1406181aae
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rev   line source
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c59ad5ccd8a6 Add ast.Try
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1 use python_ast::{Module, stmt, expr, boolop, operator, unaryop, cmpop, arguments, arg, keyword, comprehension, withitem, excepthandler};
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211b0df72e64 Hello world!
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2
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3 use std::iter;
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4
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5 trait to_string_able {
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6 fn to_string(&self) -> String;
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7 }
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8
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9 impl boolop {
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10 fn to_string(&self) -> &'static str {
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11 match *self {
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12 boolop::And => " and ",
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13 boolop::Or => " or "
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14 }
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15 }
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16 }
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17
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18 impl operator {
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19 fn to_string(&self) -> &'static str {
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20 match *self {
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21 operator::Add => "+",
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22 operator::Sub => "-",
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23 operator::Mult => "*",
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24 operator::MatMult => "@",
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25 operator::Div => "/",
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26 operator::Mod => "%",
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27 operator::Pow => "**",
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28 operator::LShift => "<<",
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29 operator::RShift => ">>",
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30 operator::BitOr => "|",
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31 operator::BitXor => "^",
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32 operator::BitAnd => "&",
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33 operator::FloorDiv => "//",
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34 }
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35 }
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36 }
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37
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38 impl unaryop {
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39 fn to_string(&self) -> &'static str {
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40 match *self {
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41 unaryop::Invert => "~",
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42 unaryop::Not => "not ",
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43 unaryop::UAdd => "+",
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44 unaryop::USub => "-"
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45 }
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46 }
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47 }
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48
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49 impl cmpop {
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50 fn to_string(&self) -> &'static str {
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51 match *self {
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52 cmpop::Eq => "==",
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53 cmpop::NotEq => "!=",
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54 cmpop::Lt => "<",
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55 cmpop::LtE => "<=",
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56 cmpop::Gt => ">",
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57 cmpop::GtE => ">=",
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58 cmpop::Is => "is",
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59 cmpop::IsNot => "is not",
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60 cmpop::In => "in",
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61 cmpop::NotIn => "not in",
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62 }
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63 }
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64 }
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65
59
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66 impl to_string_able for withitem {
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67 fn to_string(&self) -> String {
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68 match self.optional_vars {
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69 None => format!("{}", self.context_expr.to_string()),
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70 Some(ref optional_var) => format!("{} as {}", self.context_expr.to_string(), optional_var.to_string())
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71 }
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72 }
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73 }
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74
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75 fn vec_to_strings_vec<T: to_string_able>(values: Vec<T>) -> Vec<String> {
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76 let mut vector = vec!();
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77 for value in values {
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78 vector.push(value.to_string());
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79 }
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80 vector
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81 }
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82
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83 impl to_string_able for keyword {
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84 fn to_string(&self) -> String {
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85 match self.arg.clone() {
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86 Some(arg) => format!("{}={}", arg, self.value.to_string()),
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87 None => format!("**{}", self.value.to_string())
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88 }
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89 }
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90 }
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91
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92 fn statements_to_string(indent: usize, body: Vec<stmt>) -> String {
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93 let mut statements = vec!();
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94 for statement in body {
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95 statements.push(statement.to_string(indent + 1));
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96 }
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97 statements.join("\n")
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98 }
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99
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100 fn if_else_statements_to_string(indent: usize, body: Vec<stmt>, orelse: Vec<stmt>) -> String {
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101 let body = statements_to_string(indent, body);
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102 if orelse.is_empty() {
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103 body
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104 } else {
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105 format!("{}\n{}else:\n{}", body, make_indent(indent), statements_to_string(indent, orelse))
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106 }
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107 }
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108
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109 impl to_string_able for comprehension {
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110 fn to_string(&self) -> String {
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111 let mut result = vec!();
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112 result.push(format!("for {} in {}", self.target.to_string(), self.iter.to_string()));
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113 for if_ in self.ifs.clone() {
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114 result.push(format!("if {}", if_.to_string()))
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115 }
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116 result.join(" ")
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117 }
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118 }
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119
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120 impl excepthandler {
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121 fn to_string(self, indent: usize) -> String {
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122 let current_indent = make_indent(indent);
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123 format!("{}except {}{}:\n{}",
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124 current_indent,
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125 match self.type_ {
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126 None => String::new(),
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127 Some(ref type_) => type_.to_string()
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128 },
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129 match self.name {
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130 None => String::new(),
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131 Some(ref name) => format!(" as {}", name)
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132 },
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133 statements_to_string(indent, self.body)
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134 )
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135 }
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136 }
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137
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138 impl to_string_able for expr {
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139 fn to_string(&self) -> String {
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140 match self.clone() {
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141 expr::BoolOp(op, values) => {
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142 let mut data = vec!();
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143 for value in values {
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144 data.push(value.to_string());
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145 }
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146 data.join(op.to_string())
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147 },
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148 expr::BinOp(a, op, b) => format!("{} {} {}", a.to_string(), op.to_string(), b.to_string()),
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149 expr::UnaryOp(op, operand) => format!("{}{}", op.to_string(), operand.to_string()),
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150
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151 expr::Compare(left, ops, comparators) => format!("{} {}", left.to_string(), {
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152 let mut arguments = vec!();
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153
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154 // XXX: wrong order!
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155 for op in ops {
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156 arguments.push(op.to_string().to_string())
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157 }
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158 for comparator in comparators {
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159 arguments.push(comparator.to_string())
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160 }
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161 /*
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162 for (op, comparator) in ops.zip(comparators) {
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163 let op = op.unwrap();
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164 let comparator = comparator.unwrap();
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165 arguments.push(format!("{} {}", op.to_string(), comparator.to_string()))
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166 }
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167 */
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168
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169 arguments.join(" ")
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170 }),
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171 expr::Call(func, args, keywords) => format!("{}({})", func.to_string(), {
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172 let mut arguments = vec!();
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173 let args = vec_to_strings_vec(args);
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174 let keywords = vec_to_strings_vec(keywords);
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175 arguments.extend(args);
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176 arguments.extend(keywords);
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177 arguments.join(", ")
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178 }),
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179 expr::Num(n) => format!("{}", n),
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180 expr::Str(s) => format!("\"{}\"", s),
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181 expr::NameConstant(name) => format!("{}", name),
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182 expr::Attribute(value, attr, _) => format!("{}.{}", value.to_string(), attr),
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183 expr::Name(name, _) => format!("{}", name),
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184 expr::List(elts, _) => format!("[{}]", vec_to_strings_vec(elts).join(", ")),
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185 expr::ListComp(elt, generators) => format!("[{} {}]", elt.to_string(), vec_to_strings_vec(generators).join(" ")),
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186 expr::DictComp(key, value, generators) => format!("{{{}: {} {}}}", key.to_string(), value.to_string(), vec_to_strings_vec(generators).join(" ")),
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187 expr::Tuple(elts, _) => format!("({})", vec_to_strings_vec(elts).join(", ")),
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188 expr::Ellipsis => format!("..."),
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189 expr::Await(value) => format!("await {}", value.to_string()),
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190 expr::Yield(value) => {
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191 match *value {
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192 None => String::from("yield"),
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193 Some(value) => format!("yield {}", value.to_string())
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194 }
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195 },
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196 expr::YieldFrom(value) => format!("yield from {}", value.to_string()),
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197 expr::Set(elts) => format!("{{{}}}", vec_to_strings_vec(elts).join(", ")),
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198 }
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199 }
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200 }
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201
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202 impl to_string_able for arg {
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203 fn to_string(&self) -> String {
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204 match self.annotation {
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205 None => self.arg.clone(),
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206 Some(ref annotation) => format!("{}: {}", self.arg, annotation.to_string())
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207 }
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208 }
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209 }
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210
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211 impl to_string_able for arguments {
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212 fn to_string(&self) -> String {
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213 let mut args = vec!();
56
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214 let num_args = self.args.len();
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215 let num_defaults = self.defaults.len();
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216
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217 let mut normal_args = self.args.clone();
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218 let defaulted_args = normal_args.split_off(num_args - num_defaults);
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219 for arg in normal_args {
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220 args.push(arg.to_string());
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221 }
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222 for (arg, default) in defaulted_args.iter().zip(self.defaults.iter()) {
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223 args.push(format!("{}={}", arg.to_string(), default.to_string()));
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224 }
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225
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226 if !self.kwonlyargs.is_empty() {
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227 match self.vararg {
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228 None => args.push("*".to_string()),
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229 Some(ref vararg) => args.push(format!("*{}", vararg.to_string())),
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230 }
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231 }
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232 for (arg, default) in self.kwonlyargs.iter().zip(self.kw_defaults.iter()) {
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233 let arg = arg.to_string();
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234 match *default {
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235 Some(ref default) => args.push(format!("{}={}", arg, default.to_string())),
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236 None => args.push(arg)
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237 }
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238 }
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239 match self.kwarg {
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240 Some(ref kwarg) => args.push(format!("**{}", kwarg.to_string())),
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241 None => ()
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242 }
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243 args.join(", ")
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244 }
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245 }
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246
0
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247 fn make_indent(indent: usize) -> String {
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248 iter::repeat(" ").take(indent).collect()
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249 }
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250
65
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251 fn decorator_list_to_string(decorator_list: Vec<expr>, indent: usize) -> String {
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252 let current_indent = make_indent(indent);
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253 let decorators = vec_to_strings_vec(decorator_list);
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254 if decorators.is_empty() {
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255 String::new()
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256 } else {
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257 format!("{}@{}\n",
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258 current_indent,
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259 decorators.join(format!("\n{}@", current_indent).as_str())
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260 )
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261 }
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262 }
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263
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264 impl stmt {
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265 fn to_string(&self, indent: usize) -> String {
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266 let current_indent = make_indent(indent);
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267 match self.clone() {
65
ce5e27a3f277 Add ClassDef.decorator_list support.
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diff changeset
268 stmt::ClassDef(name, bases, keywords, body, decorator_list) => {
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diff changeset
269 format!("{}{}class {}({}):\n{}",
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diff changeset
270 decorator_list_to_string(decorator_list, indent),
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parents: 64
diff changeset
271 current_indent,
ce5e27a3f277 Add ClassDef.decorator_list support.
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parents: 64
diff changeset
272 name,
67
8ce78e2ba48c Implement class keywords.
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diff changeset
273 {
8ce78e2ba48c Implement class keywords.
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diff changeset
274 let mut arguments = vec!();
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275 let bases = vec_to_strings_vec(bases);
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diff changeset
276 let keywords = vec_to_strings_vec(keywords);
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diff changeset
277 arguments.extend(bases);
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parents: 66
diff changeset
278 arguments.extend(keywords);
8ce78e2ba48c Implement class keywords.
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diff changeset
279 arguments.join(", ")
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diff changeset
280 },
65
ce5e27a3f277 Add ClassDef.decorator_list support.
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diff changeset
281 statements_to_string(indent, body)
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parents: 64
diff changeset
282 )
ce5e27a3f277 Add ClassDef.decorator_list support.
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diff changeset
283 },
69
a73eaf42bea1 Add ast.AsyncDefFunction.
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parents: 68
diff changeset
284 stmt::FunctionDef(name, arguments, body, decorator_list, returns, async) => {
a73eaf42bea1 Add ast.AsyncDefFunction.
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parents: 68
diff changeset
285 format!("{}{}{}def {}({}){}:\n{}",
65
ce5e27a3f277 Add ClassDef.decorator_list support.
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parents: 64
diff changeset
286 decorator_list_to_string(decorator_list, indent),
69
a73eaf42bea1 Add ast.AsyncDefFunction.
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parents: 68
diff changeset
287 if async { "async " } else { "" },
63
5df52b40fe54 Implement FunctionDef.returns.
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diff changeset
288 current_indent,
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diff changeset
289 name,
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diff changeset
290 arguments.to_string(),
5df52b40fe54 Implement FunctionDef.returns.
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parents: 62
diff changeset
291 match returns {
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diff changeset
292 None => String::new(),
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diff changeset
293 Some(returns) => format!(" -> {}", returns.to_string())
5df52b40fe54 Implement FunctionDef.returns.
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parents: 62
diff changeset
294 },
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diff changeset
295 statements_to_string(indent, body)
5df52b40fe54 Implement FunctionDef.returns.
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parents: 62
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296 )
5df52b40fe54 Implement FunctionDef.returns.
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297 }
13
38b0d63697b1 Import the full AST grammar from CPython 3.5.
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298 stmt::Global(names) => format!("{}global {}", current_indent, names.join(", ")),
51
ded1907b7a69 Add ast.Nonlocal.
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299 stmt::Nonlocal(names) => format!("{}nonlocal {}", current_indent, names.join(", ")),
13
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300 stmt::If(test, body, orelse) => format!("{}if {}:\n{}", current_indent, test.to_string(), if_else_statements_to_string(indent, body, orelse)),
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parents: 8
diff changeset
301 stmt::While(test, body, orelse) => format!("{}while {}:\n{}", current_indent, test.to_string(), if_else_statements_to_string(indent, body, orelse)),
71
2c1e2ce41263 Add ast.AsyncFor.
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parents: 69
diff changeset
302 stmt::For(target, iter, body, orelse, async) => {
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parents: 69
diff changeset
303 format!("{}{}for {} in {}:\n{}",
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parents: 69
diff changeset
304 current_indent,
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parents: 69
diff changeset
305 if async { "async " } else { "" },
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parents: 69
diff changeset
306 target.to_string(),
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parents: 69
diff changeset
307 iter.to_string(),
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parents: 69
diff changeset
308 if_else_statements_to_string(indent, body, orelse)
2c1e2ce41263 Add ast.AsyncFor.
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parents: 69
diff changeset
309 )
2c1e2ce41263 Add ast.AsyncFor.
Bastien Orivel <eijebong@bananium.fr>
parents: 69
diff changeset
310 },
54
ad2453a55820 Refactor all Vec<T> -> Vec<String> functions into a single one.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents: 53
diff changeset
311 stmt::Assign(targets, value) => format!("{}{} = {}", current_indent, vec_to_strings_vec(targets).join(", "), value.to_string()),
13
38b0d63697b1 Import the full AST grammar from CPython 3.5.
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parents: 8
diff changeset
312 stmt::AugAssign(target, op, value) => format!("{}{} {}= {}", current_indent, target.to_string(), op.to_string(), value.to_string()),
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parents: 8
diff changeset
313 stmt::Return(expr) => format!("{}return{}", current_indent, match expr {
38b0d63697b1 Import the full AST grammar from CPython 3.5.
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parents: 8
diff changeset
314 Some(expr) => format!(" {}", expr.to_string()),
58
a0b23123901b Replace "".to_string() and format!("") by String::new().
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parents: 57
diff changeset
315 None => String::new()
0
211b0df72e64 Hello world!
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parents:
diff changeset
316 }),
48
039f85b187f2 Also handle relative imports.
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parents: 47
diff changeset
317 stmt::ImportFrom(module, names, level) => {
039f85b187f2 Also handle relative imports.
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parents: 47
diff changeset
318 format!("{}from {}{} import {}",
039f85b187f2 Also handle relative imports.
Bastien Orivel <eijebong@bananium.fr>
parents: 47
diff changeset
319 current_indent,
66
32550e12aedf Simplify some expressions in ast_dump.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
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diff changeset
320 match level {
32550e12aedf Simplify some expressions in ast_dump.
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diff changeset
321 None => String::new(),
32550e12aedf Simplify some expressions in ast_dump.
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diff changeset
322 Some(level) => iter::repeat(".").take(level).collect()
48
039f85b187f2 Also handle relative imports.
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parents: 47
diff changeset
323 },
039f85b187f2 Also handle relative imports.
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parents: 47
diff changeset
324 module.to_string(),
039f85b187f2 Also handle relative imports.
Bastien Orivel <eijebong@bananium.fr>
parents: 47
diff changeset
325 {
039f85b187f2 Also handle relative imports.
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parents: 47
diff changeset
326 let mut names_ = vec!();
039f85b187f2 Also handle relative imports.
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parents: 47
diff changeset
327 for name in names {
66
32550e12aedf Simplify some expressions in ast_dump.
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parents: 65
diff changeset
328 names_.push(
32550e12aedf Simplify some expressions in ast_dump.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents: 65
diff changeset
329 match name.asname {
32550e12aedf Simplify some expressions in ast_dump.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents: 65
diff changeset
330 None => name.name,
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parents: 65
diff changeset
331 Some(asname) => format!("{} as {}", name.name, asname)
32550e12aedf Simplify some expressions in ast_dump.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents: 65
diff changeset
332 }
32550e12aedf Simplify some expressions in ast_dump.
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parents: 65
diff changeset
333 )
48
039f85b187f2 Also handle relative imports.
Bastien Orivel <eijebong@bananium.fr>
parents: 47
diff changeset
334 }
039f85b187f2 Also handle relative imports.
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parents: 47
diff changeset
335 names_.join(", ")
44
5f1d285471af Finish ImportFrom conversion and add a test for it.
Bastien Orivel <eijebong@bananium.fr>
parents: 38
diff changeset
336 }
48
039f85b187f2 Also handle relative imports.
Bastien Orivel <eijebong@bananium.fr>
parents: 47
diff changeset
337 )
039f85b187f2 Also handle relative imports.
Bastien Orivel <eijebong@bananium.fr>
parents: 47
diff changeset
338 },
47
38f59b0efc2c Handle Import and add a test for it.
Bastien Orivel <eijebong@bananium.fr>
parents: 44
diff changeset
339 stmt::Import(names) => format!("{}import {}", current_indent, {
38f59b0efc2c Handle Import and add a test for it.
Bastien Orivel <eijebong@bananium.fr>
parents: 44
diff changeset
340 let mut names_ = vec!();
38f59b0efc2c Handle Import and add a test for it.
Bastien Orivel <eijebong@bananium.fr>
parents: 44
diff changeset
341 for name in names {
66
32550e12aedf Simplify some expressions in ast_dump.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents: 65
diff changeset
342 names_.push(
32550e12aedf Simplify some expressions in ast_dump.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents: 65
diff changeset
343 match name.asname {
32550e12aedf Simplify some expressions in ast_dump.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents: 65
diff changeset
344 None => name.name,
32550e12aedf Simplify some expressions in ast_dump.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents: 65
diff changeset
345 Some(asname) => format!("{} as {}", name.name, asname)
32550e12aedf Simplify some expressions in ast_dump.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents: 65
diff changeset
346 }
32550e12aedf Simplify some expressions in ast_dump.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents: 65
diff changeset
347 )
47
38f59b0efc2c Handle Import and add a test for it.
Bastien Orivel <eijebong@bananium.fr>
parents: 44
diff changeset
348 }
38f59b0efc2c Handle Import and add a test for it.
Bastien Orivel <eijebong@bananium.fr>
parents: 44
diff changeset
349 names_.join(", ")
38f59b0efc2c Handle Import and add a test for it.
Bastien Orivel <eijebong@bananium.fr>
parents: 44
diff changeset
350 }),
13
38b0d63697b1 Import the full AST grammar from CPython 3.5.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents: 8
diff changeset
351 stmt::Expr(expr) => format!("{}{}", current_indent, expr.to_string()),
21
7af637f444d1 Add ast.Delete
Bastien Orivel <eijebong@bananium.fr>
parents: 19
diff changeset
352 stmt::Break => format!("{}break", current_indent),
54
ad2453a55820 Refactor all Vec<T> -> Vec<String> functions into a single one.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents: 53
diff changeset
353 stmt::Delete(targets) => format!("{}del {}", current_indent, vec_to_strings_vec(targets).join(", ")),
50
5edbc24b625f Add ast.Continue.
Bastien Orivel <eijebong@bananium.fr>
parents: 49
diff changeset
354 stmt::Pass => format!("{}pass", current_indent),
57
e5a808ec31c0 Add ast.Assert.
Bastien Orivel <eijebong@bananium.fr>
parents: 56
diff changeset
355 stmt::Continue => format!("{}continue", current_indent),
e5a808ec31c0 Add ast.Assert.
Bastien Orivel <eijebong@bananium.fr>
parents: 56
diff changeset
356 stmt::Assert(test, msg) => {
e5a808ec31c0 Add ast.Assert.
Bastien Orivel <eijebong@bananium.fr>
parents: 56
diff changeset
357 format!("{}assert {}{}",
e5a808ec31c0 Add ast.Assert.
Bastien Orivel <eijebong@bananium.fr>
parents: 56
diff changeset
358 current_indent,
e5a808ec31c0 Add ast.Assert.
Bastien Orivel <eijebong@bananium.fr>
parents: 56
diff changeset
359 test.to_string(),
66
32550e12aedf Simplify some expressions in ast_dump.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents: 65
diff changeset
360 match msg {
32550e12aedf Simplify some expressions in ast_dump.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents: 65
diff changeset
361 None => String::new(),
32550e12aedf Simplify some expressions in ast_dump.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents: 65
diff changeset
362 Some(msg) => format!(", {}", msg.to_string())
57
e5a808ec31c0 Add ast.Assert.
Bastien Orivel <eijebong@bananium.fr>
parents: 56
diff changeset
363 }
e5a808ec31c0 Add ast.Assert.
Bastien Orivel <eijebong@bananium.fr>
parents: 56
diff changeset
364 )
59
407b3b217928 Add ast.With.
Bastien Orivel <eijebong@bananium.fr>
parents: 58
diff changeset
365 },
72
7ac23f4336b1 Add ast.AsyncWith.
Bastien Orivel <eijebong@bananium.fr>
parents: 71
diff changeset
366 stmt::With(items, body, async) => {
7ac23f4336b1 Add ast.AsyncWith.
Bastien Orivel <eijebong@bananium.fr>
parents: 71
diff changeset
367 format!("{}{}with {}:\n{}",
59
407b3b217928 Add ast.With.
Bastien Orivel <eijebong@bananium.fr>
parents: 58
diff changeset
368 current_indent,
72
7ac23f4336b1 Add ast.AsyncWith.
Bastien Orivel <eijebong@bananium.fr>
parents: 71
diff changeset
369 if async { "async " } else { "" },
66
32550e12aedf Simplify some expressions in ast_dump.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents: 65
diff changeset
370 vec_to_strings_vec(items).join(", "),
59
407b3b217928 Add ast.With.
Bastien Orivel <eijebong@bananium.fr>
parents: 58
diff changeset
371 statements_to_string(indent, body)
407b3b217928 Add ast.With.
Bastien Orivel <eijebong@bananium.fr>
parents: 58
diff changeset
372 )
60
9f0f457a67f6 Add ast.Raise.
Bastien Orivel <eijebong@bananium.fr>
parents: 59
diff changeset
373 },
9f0f457a67f6 Add ast.Raise.
Bastien Orivel <eijebong@bananium.fr>
parents: 59
diff changeset
374 stmt::Raise(exc, cause) => {
9f0f457a67f6 Add ast.Raise.
Bastien Orivel <eijebong@bananium.fr>
parents: 59
diff changeset
375 format!("{}raise{}{}",
9f0f457a67f6 Add ast.Raise.
Bastien Orivel <eijebong@bananium.fr>
parents: 59
diff changeset
376 current_indent,
9f0f457a67f6 Add ast.Raise.
Bastien Orivel <eijebong@bananium.fr>
parents: 59
diff changeset
377 match exc {
9f0f457a67f6 Add ast.Raise.
Bastien Orivel <eijebong@bananium.fr>
parents: 59
diff changeset
378 None => String::new(),
9f0f457a67f6 Add ast.Raise.
Bastien Orivel <eijebong@bananium.fr>
parents: 59
diff changeset
379 Some(ref exc) => format!(" {}", exc.to_string())
9f0f457a67f6 Add ast.Raise.
Bastien Orivel <eijebong@bananium.fr>
parents: 59
diff changeset
380 },
9f0f457a67f6 Add ast.Raise.
Bastien Orivel <eijebong@bananium.fr>
parents: 59
diff changeset
381 match cause {
9f0f457a67f6 Add ast.Raise.
Bastien Orivel <eijebong@bananium.fr>
parents: 59
diff changeset
382 None => String::new(),
9f0f457a67f6 Add ast.Raise.
Bastien Orivel <eijebong@bananium.fr>
parents: 59
diff changeset
383 Some(ref cause) => format!(" from {}", cause.to_string())
9f0f457a67f6 Add ast.Raise.
Bastien Orivel <eijebong@bananium.fr>
parents: 59
diff changeset
384 }
9f0f457a67f6 Add ast.Raise.
Bastien Orivel <eijebong@bananium.fr>
parents: 59
diff changeset
385 )
68
c59ad5ccd8a6 Add ast.Try
Bastien Orivel <eijebong@bananium.fr>
parents: 67
diff changeset
386 },
c59ad5ccd8a6 Add ast.Try
Bastien Orivel <eijebong@bananium.fr>
parents: 67
diff changeset
387 stmt::Try(body, excepthandlers, orelse, finalbody) => {
c59ad5ccd8a6 Add ast.Try
Bastien Orivel <eijebong@bananium.fr>
parents: 67
diff changeset
388 format!("{}try:\n{}\n{}{}\n{}",
c59ad5ccd8a6 Add ast.Try
Bastien Orivel <eijebong@bananium.fr>
parents: 67
diff changeset
389 current_indent,
c59ad5ccd8a6 Add ast.Try
Bastien Orivel <eijebong@bananium.fr>
parents: 67
diff changeset
390 statements_to_string(indent, body),
c59ad5ccd8a6 Add ast.Try
Bastien Orivel <eijebong@bananium.fr>
parents: 67
diff changeset
391 {
c59ad5ccd8a6 Add ast.Try
Bastien Orivel <eijebong@bananium.fr>
parents: 67
diff changeset
392 let mut excepthandlers_ = vec!();
c59ad5ccd8a6 Add ast.Try
Bastien Orivel <eijebong@bananium.fr>
parents: 67
diff changeset
393 for excepthandler in excepthandlers {
c59ad5ccd8a6 Add ast.Try
Bastien Orivel <eijebong@bananium.fr>
parents: 67
diff changeset
394 let excepthandler = excepthandler.to_string(indent);
c59ad5ccd8a6 Add ast.Try
Bastien Orivel <eijebong@bananium.fr>
parents: 67
diff changeset
395 excepthandlers_.push(excepthandler);
c59ad5ccd8a6 Add ast.Try
Bastien Orivel <eijebong@bananium.fr>
parents: 67
diff changeset
396 }
c59ad5ccd8a6 Add ast.Try
Bastien Orivel <eijebong@bananium.fr>
parents: 67
diff changeset
397 excepthandlers_.join("\n")
c59ad5ccd8a6 Add ast.Try
Bastien Orivel <eijebong@bananium.fr>
parents: 67
diff changeset
398 },
c59ad5ccd8a6 Add ast.Try
Bastien Orivel <eijebong@bananium.fr>
parents: 67
diff changeset
399 if !orelse.is_empty() {
c59ad5ccd8a6 Add ast.Try
Bastien Orivel <eijebong@bananium.fr>
parents: 67
diff changeset
400 format!("{}else:\n{}", current_indent, statements_to_string(indent, orelse))
c59ad5ccd8a6 Add ast.Try
Bastien Orivel <eijebong@bananium.fr>
parents: 67
diff changeset
401 } else {
c59ad5ccd8a6 Add ast.Try
Bastien Orivel <eijebong@bananium.fr>
parents: 67
diff changeset
402 String::new()
c59ad5ccd8a6 Add ast.Try
Bastien Orivel <eijebong@bananium.fr>
parents: 67
diff changeset
403 },
c59ad5ccd8a6 Add ast.Try
Bastien Orivel <eijebong@bananium.fr>
parents: 67
diff changeset
404 if !finalbody.is_empty() {
c59ad5ccd8a6 Add ast.Try
Bastien Orivel <eijebong@bananium.fr>
parents: 67
diff changeset
405 format!("{}finally:\n{}", current_indent, statements_to_string(indent, finalbody))
c59ad5ccd8a6 Add ast.Try
Bastien Orivel <eijebong@bananium.fr>
parents: 67
diff changeset
406 } else {
c59ad5ccd8a6 Add ast.Try
Bastien Orivel <eijebong@bananium.fr>
parents: 67
diff changeset
407 String::new()
c59ad5ccd8a6 Add ast.Try
Bastien Orivel <eijebong@bananium.fr>
parents: 67
diff changeset
408 }
c59ad5ccd8a6 Add ast.Try
Bastien Orivel <eijebong@bananium.fr>
parents: 67
diff changeset
409 )
57
e5a808ec31c0 Add ast.Assert.
Bastien Orivel <eijebong@bananium.fr>
parents: 56
diff changeset
410 }
0
211b0df72e64 Hello world!
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents:
diff changeset
411 }
211b0df72e64 Hello world!
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents:
diff changeset
412 }
211b0df72e64 Hello world!
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents:
diff changeset
413 }
211b0df72e64 Hello world!
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents:
diff changeset
414
211b0df72e64 Hello world!
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents:
diff changeset
415 #[allow(dead_code)]
22
25b202005d1d Return a String from ast_dump instead of printing it directly.
Bastien Orivel <eijebong@bananium.fr>
parents: 21
diff changeset
416 pub fn dump_ast(ast: &Module) -> String {
25b202005d1d Return a String from ast_dump instead of printing it directly.
Bastien Orivel <eijebong@bananium.fr>
parents: 21
diff changeset
417 let mut dumped_statements = vec!();
0
211b0df72e64 Hello world!
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents:
diff changeset
418 for statement in &ast.statements {
22
25b202005d1d Return a String from ast_dump instead of printing it directly.
Bastien Orivel <eijebong@bananium.fr>
parents: 21
diff changeset
419 let dumped_statement = statement.to_string(0);
25b202005d1d Return a String from ast_dump instead of printing it directly.
Bastien Orivel <eijebong@bananium.fr>
parents: 21
diff changeset
420 dumped_statements.push(dumped_statement);
0
211b0df72e64 Hello world!
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents:
diff changeset
421 }
22
25b202005d1d Return a String from ast_dump instead of printing it directly.
Bastien Orivel <eijebong@bananium.fr>
parents: 21
diff changeset
422 dumped_statements.join("\n")
0
211b0df72e64 Hello world!
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents:
diff changeset
423 }
22
25b202005d1d Return a String from ast_dump instead of printing it directly.
Bastien Orivel <eijebong@bananium.fr>
parents: 21
diff changeset
424