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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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16
lib/ast.js
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@@ -495,10 +495,10 @@ var AST_Finally = DEFNODE("Finally", null, {
$documentation: "A `finally` node; only makes sense as part of a `try` statement"
}, AST_Block);
/* -----[ VAR ]----- */
/* -----[ VAR/CONST ]----- */
var AST_Definitions = DEFNODE("Definitions", "definitions", {
$documentation: "Base class for `var` nodes (variable declarations/initializations)",
$documentation: "Base class for `var` or `const` nodes (variable declarations/initializations)",
$propdoc: {
definitions: "[AST_VarDef*] array of variable definitions"
},
@@ -516,10 +516,14 @@ var AST_Var = DEFNODE("Var", null, {
$documentation: "A `var` statement"
}, AST_Definitions);
var AST_Const = DEFNODE("Const", null, {
$documentation: "A `const` statement"
}, AST_Definitions);
var AST_VarDef = DEFNODE("VarDef", "name value", {
$documentation: "A variable declaration; only appears in a AST_Definitions node",
$propdoc: {
name: "[AST_SymbolVar] name of the variable",
name: "[AST_SymbolVar|AST_SymbolConst] name of the variable",
value: "[AST_Node?] initializer, or null of there's no initializer"
},
_walk: function(visitor) {
@@ -724,13 +728,17 @@ var AST_SymbolAccessor = DEFNODE("SymbolAccessor", null, {
}, AST_Symbol);
var AST_SymbolDeclaration = DEFNODE("SymbolDeclaration", "init", {
$documentation: "A declaration symbol (symbol in var, function name or argument, symbol in catch)",
$documentation: "A declaration symbol (symbol in var/const, function name or argument, symbol in catch)",
}, AST_Symbol);
var AST_SymbolVar = DEFNODE("SymbolVar", null, {
$documentation: "Symbol defining a variable",
}, AST_SymbolDeclaration);
var AST_SymbolConst = DEFNODE("SymbolConst", null, {
$documentation: "A constant declaration"
}, AST_SymbolDeclaration);
var AST_SymbolFunarg = DEFNODE("SymbolFunarg", null, {
$documentation: "Symbol naming a function argument",
}, AST_SymbolVar);