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Revert "remove support for const (#1910)"

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This reverts commit c391576d52.
This commit is contained in:
alexlamsl
2017-05-15 18:38:16 +08:00
parent ff526be61d
commit cd6e849555
20 changed files with 591 additions and 36 deletions
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6
lib/mozilla-ast.js
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@@ -168,7 +168,7 @@
});
},
VariableDeclaration: function(M) {
return new AST_Var({
return new (M.kind === "const" ? AST_Const : AST_Var)({
start : my_start_token(M),
end : my_end_token(M),
definitions : M.declarations.map(from_moz)
@@ -204,7 +204,7 @@
Identifier: function(M) {
var p = FROM_MOZ_STACK[FROM_MOZ_STACK.length - 2];
return new ( p.type == "LabeledStatement" ? AST_Label
: p.type == "VariableDeclarator" && p.id === M ? AST_SymbolVar
: p.type == "VariableDeclarator" && p.id === M ? (p.kind == "const" ? AST_SymbolConst : AST_SymbolVar)
: p.type == "FunctionExpression" ? (p.id === M ? AST_SymbolLambda : AST_SymbolFunarg)
: p.type == "FunctionDeclaration" ? (p.id === M ? AST_SymbolDefun : AST_SymbolFunarg)
: p.type == "CatchClause" ? AST_SymbolCatch
@@ -324,7 +324,7 @@
def_to_moz(AST_Definitions, function To_Moz_VariableDeclaration(M) {
return {
type: "VariableDeclaration",
kind: "var",
kind: M instanceof AST_Const ? "const" : "var",
declarations: M.definitions.map(to_moz)
};
});