Parsing a large file a gets a nil back

[ftomassetti]

I tried to parse Angular.JS uncompressed (500K). The parser.parse method return nil.

I am using JRuby 1.7.3

[ftomassetti]

The logger tells me this:

DEBUG: #RKelly::Nodes::ExpressionStatementNode:0x007fd3ea5c9408
DEBUG: #RKelly::Nodes::ReturnNode:0x007fd3ea5c7860
DEBUG: #RKelly::Nodes::FunctionBodyNode:0x007fd3ea5c7568
DEBUG: #RKelly::Nodes::VarStatementNode:0x007fd3ea5c6ed8
DEBUG: #RKelly::Nodes::ReturnNode:0x007fd3ea5cd300
DEBUG: #RKelly::Nodes::FunctionBodyNode:0x007fd3ea5cd008
DEBUG: #RKelly::Nodes::VarStatementNode:0x007fd3ea5cc978
DEBUG: #RKelly::Nodes::ReturnNode:0x007fd3ea5d1298
DEBUG: #RKelly::Nodes::FunctionBodyNode:0x007fd3ea5d0fa0
DEBUG: #RKelly::Nodes::ReturnNode:0x007fd3ea5d02f8
DEBUG: #RKelly::Nodes::FunctionBodyNode:0x007fd3ea5cfe20
DEBUG: #RKelly::Nodes::VarStatementNode:0x007fd3ea5cf790
DEBUG: #RKelly::Nodes::ReturnNode:0x007fd3eea00f68
DEBUG: #RKelly::Nodes::FunctionBodyNode:0x007fd3eea00c70
DEBUG: #RKelly::Nodes::ReturnNode:0x007fd3ee9fffc8
DEBUG: #RKelly::Nodes::FunctionBodyNode:0x007fd3eea07ae8
DEBUG: #RKelly::Nodes::VarStatementNode:0x007fd3eea07458
DEBUG: #RKelly::Nodes::ExpressionStatementNode:0x007fd3eea05b30
DEBUG: #RKelly::Nodes::ExpressionStatementNode:0x007fd3eea05220
DEBUG: #RKelly::Nodes::BlockNode:0x007fd3eea04c30
DEBUG: #RKelly::Nodes::IfNode:0x007fd3eea047d0
ERROR: error
ERROR: error value: RAW_IDENT: int
ERROR: error stack: [SINGLE_CHAR: (, RAW_IDENT: function, SINGLE_CHAR: (, [#<RKelly::Nodes::ParameterNode:0x007fd3ea5c9f20 @value="window", @comments=[], @line=nil, @filename=nil>, #<RKelly::Nodes::ParameterNode:0x007fd3ea5c9cc8 @value="document", @comments=[], @line=nil, @filename=nil>, #<RKelly::Nodes::ParameterNode:0x007fd3ea5c9a20 @value="undefined", @comments=[], @line=nil, @filename=nil>], SINGLE_CHAR: ), SINGLE_CHAR: {, [#<RKelly::Nodes::ExpressionStatementNode:0x007fd3ea5c9408 @value=#<RKelly::Nodes::StringNode:0x007fd3ea5c9570 @value="'use strict'", @comments=[], @line=7, @filename=nil>, @comments=[], @line=7, @filename=nil>, #<RKelly::Nodes::VarStatementNode:0x007fd3ea5c6ed8 @value=[#<RKelly::Nodes::VarDeclNode:0x007fd3ea5c70b8 @value=#<RKelly::Nodes::AssignExprNode:0x007fd3ea5c71d0 @value=#<RKelly::Nodes::FunctionExprNode:0x007fd3ea5c73b0 @value="function", @comments=[], @line=20, @filename=nil, @function_body=#<RKelly::Nodes::FunctionBodyNode:0x007fd3ea5c7568 @value=#<RKelly::Nodes::SourceElementsNode:0x007fd3ea5c7630 @value=[#<RKelly::Nodes::ReturnNode:0x007fd3ea5c7860 @value=#<RKelly::Nodes::ConditionalNode:0x007fd3ea5c79c8 @value=#<RKelly::Nodes::FunctionCallNode:0x007fd3ea5c7d88 @value=#<RKelly::Nodes::DotAccessorNode:0x007fd3ea5c8080 @value=#<RKelly::Nodes::ResolveNode:0x007fd3ea5c8260 @value="string", @comments=[], @line=20, @filename=nil>, @comments=[], @line=20, @filename=nil, @Accessor="toLowerCase">, @comments=[], @line=nil, @filename=nil, @arguments=#<RKelly::Nodes::ArgumentsNode:0x007fd3ea5c7e78 @value=[], @comments=[], @line=20, @filename=nil>>, @comments=[], @line=20, @filename=nil, @conditions=#<RKelly::Nodes::FunctionCallNode:0x007fd3ea5c8490 @value=#<RKelly::Nodes::ResolveNode:0x007fd3ea5c8940 @value="isString", @comments=[], @line=20, @filename=nil>, @comments=[], @line=nil, @filename=nil, @arguments=#<RKelly::Nodes::ArgumentsNode:0x007fd3ea5c8580 @value=[#<RKelly::Nodes::ResolveNode:0x007fd3ea5c8788 @value="string", @comments=[], @line=20, @filename=nil>], @comments=[], @line=20, @filename=nil>>, @else=#<RKelly::Nodes::ResolveNode:0x007fd3ea5c7b58 @value="string", @comments=[], @line=20, @filename=nil>>, @comments=[], @line=20, @filename=nil>], @comments=[], @line=nil, @filename=nil>, @comments=[], @line=nil, @filename=nil>, @arguments=[#<RKelly::Nodes::ParameterNode:0x007fd3ea5c8c38 @value="string", @comments=[], @line=nil, @filename=nil>]>, @comments=[], @line=20, @filename=nil>, @comments=[], @line=20, @filename=nil, @name="lowercase", @constant=false>], @comments=[], @line=20, @filename=nil>, #<RKelly::Nodes::VarStatementNode:0x007fd3ea5cc978 @value=[#<RKelly::Nodes::VarDeclNode:0x007fd3ea5ccb58 @value=#<RKelly::Nodes::AssignExprNode:0x007fd3ea5ccc70 @value=#<RKelly::Nodes::FunctionExprNode:0x007fd3ea5cce50 @value="function", @comments=[], @line=32, @filename=nil, @function_body=#<RKelly::Nodes::FunctionBodyNode:0x007fd3ea5cd008 @value=#<RKelly::Nodes::SourceElementsNode:0x007fd3ea5cd0d0 @value=[#<RKelly::Nodes::ReturnNode:0x007fd3ea5cd300 @value=#<RKelly::Nodes::ConditionalNode:0x007fd3ea5cd468 @value=#<RKelly::Nodes::FunctionCallNode:0x007fd3ea5cd828 @value=#<RKelly::Nodes::DotAccessorNode:0x007fd3ea5cdb20 @value=#<RKelly::Nodes::ResolveNode:0x007fd3ea5cdd00 @value="string", @comments=[], @line=32, @filename=nil>, @comments=[], @line=32, @filename=nil, @Accessor="toUpperCase">, @comments=[], @line=nil, @filename=nil, @arguments=#<RKelly::Nodes::ArgumentsNode:0x007fd3ea5cd918 @value=[], @comments=[], @line=32, @filename=nil>>, @comments=[], @line=32, @filename=nil, @conditions=#<RKelly::Nodes::FunctionCallNode:0x007fd3ea5cdf30 @value=#<RKelly::Nodes::ResolveNode:0x007fd3ea5ce3e0 @value="isString", @comments=[], @line=32, @filename=nil>, @comments=[], @line=nil, @filename=nil, @arguments=#<RKelly::Nodes::ArgumentsNode:0x007fd3ea5ce020 @value=[#<RKelly::Nodes::ResolveNode:0x007fd3ea5ce228 @value="string", @comments=[], @line=32, @filename=nil>], @comments=[], @line=32, @filename=nil>>, @else=#<RKelly::Nodes::ResolveNode:0x007fd3ea5cd5f8 @value="string", @comments=[], @line=32, @filename=nil>>, @comments=[], @line=32, @filename=nil>], @comments=[], @line=nil, @filename=nil>, @comments=[], @line=nil, @filename=nil>, @arguments=[#<RKelly::Nodes::ParameterNode:0x007fd3ea5ce6d8 @value="string", @comments=[], @line=nil, @filename=nil>]>, @comments=[], @line=32, @filename=nil>, @comments=[], @line=32, @filename=nil, @name="uppercase", @constant=false>], @comments=[], @line=32, @filename=nil>, #<RKelly::Nodes::VarStatementNode:0x007fd3ea5cf790 @value=[#<RKelly::Nodes::VarDeclNode:0x007fd3ea5cf970 @value=#<RKelly::Nodes::AssignExprNode:0x007fd3ea5cfa88 @value=#<RKelly::Nodes::FunctionExprNode:0x007fd3ea5cfc68 @value="function", @comments=[], @line=35, @filename=nil, @function_body=#<RKelly::Nodes::FunctionBodyNode:0x007fd3ea5cfe20 @value=#<RKelly::Nodes::SourceElementsNode:0x007fd3ea5cfee8 @value=[#<RKelly::Nodes::ReturnNode:0x007fd3ea5d02f8 @value=#<RKelly::Nodes::ConditionalNode:0x007fd3ea5d0460 @value=#<RKelly::Nodes::FunctionCallNode:0x007fd3ea5d09b0 @value=#<RKelly::Nodes::DotAccessorNode:0x007fd3ea5cb2a8 @value=#<RKelly::Nodes::ResolveNode:0x007fd3ea5cb488 @value="s", @comments=[], @line=37, @filename=nil>, @comments=[], @line=37, @filename=nil, @Accessor="replace">, @comments=[], @line=nil, @filename=nil, @arguments=#<RKelly::Nodes::ArgumentsNode:0x007fd3ea5d0aa0 @value=[#<RKelly::Nodes::RegexpNode:0x007fd3ea5cb0f0 @value="/[A-Z]/g", @comments=[], @line=37, @filename=nil>, #<RKelly::Nodes::FunctionExprNode:0x007fd3ea5d0de8 @value="function", @comments=[], @line=37, @filename=nil, @function_body=#<RKelly::Nodes::FunctionBodyNode:0x007fd3ea5d0fa0 @value=#<RKelly::Nodes::SourceElementsNode:0x007fd3ea5d1068 @value=[#<RKelly::Nodes::ReturnNode:0x007fd3ea5d1298 @value=#<RKelly::Nodes::FunctionCallNode:0x007fd3ea5d1428 @value=#<RKelly::Nodes::DotAccessorNode:0x007fd3ea5d2850 @value=#<RKelly::Nodes::ResolveNode:0x007fd3ea5d2a30 @value="String", @comments=[], @line=37, @filename=nil>, @comments=[], @line=37, @filename=nil, @Accessor="fromCharCode">, @comments=[], @line=nil, @filename=nil, @arguments=#<RKelly::Nodes::ArgumentsNode:0x007fd3ea5d1518 @value=[#<RKelly::Nodes::BitOrNode:0x007fd3ea5d16d0 @value=#<RKelly::Nodes::NumberNode:0x007fd3ea5d1838 @value=32, @comments=[], @line=37, @filename=nil>, @comments=[], @line=37, @filename=nil, @left=#<RKelly::Nodes::FunctionCallNode:0x007fd3ea5d1d38 @value=#<RKelly::Nodes::DotAccessorNode:0x007fd3ea5d24b8 @value=#<RKelly::Nodes::ResolveNode:0x007fd3ea5d2698 @value="ch", @comments=[], @line=37, @filename=nil>, @comments=[], @line=37, @filename=nil, @Accessor="charCodeAt">, @comments=[], @line=nil, @filename=nil, @arguments=#<RKelly::Nodes::ArgumentsNode:0x007fd3ea5d1e28 @value=[#<RKelly::Nodes::NumberNode:0x007fd3ea5d2030 @value=0, @comments=[], @line=37, @filename=nil>], @comments=[], @line=37, @filename=nil>>>], @comments=[], @line=37, @filename=nil>>, @comments=[], @line=37, @filename=nil>], @comments=[], @line=nil, @filename=nil>, @comments=[], @line=nil, @filename=nil>, @arguments=[#<RKelly::Nodes::ParameterNode:0x007fd3ea5cada8 @value="ch", @comments=[], @line=nil, @filename=nil>]>], @comments=[], @line=37, @filename=nil>>, @comments=[], @line=37, @filename=nil, @conditions=#<RKelly::Nodes::FunctionCallNode:0x007fd3ea5cb848 @value=#<RKelly::Nodes::ResolveNode:0x007fd3ea5cbcf8 @value="isString", @comments=[], @line=36, @filename=nil>, @comments=[], @line=nil, @filename=nil, @arguments=#<RKelly::Nodes::ArgumentsNode:0x007fd3ea5cb938 @value=[#<RKelly::Nodes::ResolveNode:0x007fd3ea5cbb40 @value="s", @comments=[], @line=36, @filename=nil>], @comments=[], @line=36, @filename=nil>>, @else=#<RKelly::Nodes::ResolveNode:0x007fd3ea5d05f0 @value="s", @comments=[], @line=38, @filename=nil>>, @comments=[], @line=36, @filename=nil>], @comments=[], @line=nil, @filename=nil>, @comments=[], @line=nil, @filename=nil>, @arguments=[#<RKelly::Nodes::ParameterNode:0x007fd3ea5cc220 @value="s", @comments=[], @line=nil, @filename=nil>]>, @comments=[], @line=35, @filename=nil>, @comments=[], @line=35, @filename=nil, @name="manualLowercase", @constant=false>], @comments=[], @line=35, @filename=nil>, #<RKelly::Nodes::VarStatementNode:0x007fd3eea07458 @value=[#<RKelly::Nodes::VarDeclNode:0x007fd3eea07638 @value=#<RKelly::Nodes::AssignExprNode:0x007fd3eea07750 @value=#<RKelly::Nodes::FunctionExprNode:0x007fd3eea07930 @value="function", @comments=[], @line=40, @filename=nil, @function_body=#<RKelly::Nodes::FunctionBodyNode:0x007fd3eea07ae8 @value=#<RKelly::Nodes::SourceElementsNode:0x007fd3eea07bb0 @value=[#<RKelly::Nodes::ReturnNode:0x007fd3ee9fffc8 @value=#<RKelly::Nodes::ConditionalNode:0x007fd3eea00130 @value=#<RKelly::Nodes::FunctionCallNode:0x007fd3eea00680 @value=#<RKelly::Nodes::DotAccessorNode:0x007fd3eea030b0 @value=#<RKelly::Nodes::ResolveNode:0x007fd3eea03290 @value="s", @comments=[], @line=42, @filename=nil>, @comments=[], @line=42, @filename=nil, @Accessor="replace">, @comments=[], @line=nil, @filename=nil, @arguments=#<RKelly::Nodes::ArgumentsNode:0x007fd3eea00770 @value=[#<RKelly::Nodes::RegexpNode:0x007fd3eea02ef8 @value="/[a-z]/g", @comments=[], @line=42, @filename=nil>, #<RKelly::Nodes::FunctionExprNode:0x007fd3eea00ab8 @value="function", @comments=[], @line=42, @filename=nil, @function_body=#<RKelly::Nodes::FunctionBodyNode:0x007fd3eea00c70 @value=#<RKelly::Nodes::SourceElementsNode:0x007fd3eea00d38 @value=[#<RKelly::Nodes::ReturnNode:0x007fd3eea00f68 @value=#<RKelly::Nodes::FunctionCallNode:0x007fd3eea010f8 @value=#<RKelly::Nodes::DotAccessorNode:0x007fd3eea02688 @value=#<RKelly::Nodes::ResolveNode:0x007fd3eea02868 @value="String", @comments=[], @line=42, @filename=nil>, @comments=[], @line=42, @filename=nil, @Accessor="fromCharCode">, @comments=[], @line=nil, @filename=nil, @arguments=#<RKelly::Nodes::ArgumentsNode:0x007fd3eea011e8 @value=[#<RKelly::Nodes::BitAndNode:0x007fd3eea013a0 @value=#<RKelly::Nodes::BitwiseNotNode:0x007fd3eea014b8 @value=#<RKelly::Nodes::NumberNode:0x007fd3eea01620 @value=32, @comments=[], @line=42, @filename=nil>, @comments=[], @line=42, @filename=nil>, @comments=[], @line=42, @filename=nil, @left=#<RKelly::Nodes::FunctionCallNode:0x007fd3eea01b70 @value=#<RKelly::Nodes::DotAccessorNode:0x007fd3eea022f0 @value=#<RKelly::Nodes::ResolveNode:0x007fd3eea024d0 @value="ch", @comments=[], @line=42, @filename=nil>, @comments=[], @line=42, @filename=nil, @Accessor="charCodeAt">, @comments=[], @line=nil, @filename=nil, @arguments=#<RKelly::Nodes::ArgumentsNode:0x007fd3eea01c60 @value=[#<RKelly::Nodes::NumberNode:0x007fd3eea01e68 @value=0, @comments=[], @line=42, @filename=nil>], @comments=[], @line=42, @filename=nil>>>], @comments=[], @line=42, @filename=nil>>, @comments=[], @line=42, @filename=nil>], @comments=[], @line=nil, @filename=nil>, @comments=[], @line=nil, @filename=nil>, @arguments=[#<RKelly::Nodes::ParameterNode:0x007fd3eea02bb0 @value="ch", @comments=[], @line=nil, @filename=nil>]>], @comments=[], @line=42, @filename=nil>>, @comments=[], @line=42, @filename=nil, @conditions=#<RKelly::Nodes::FunctionCallNode:0x007fd3eea03650 @value=#<RKelly::Nodes::ResolveNode:0x007fd3eea03b00 @value="isString", @comments=[], @line=41, @filename=nil>, @comments=[], @line=nil, @filename=nil, @arguments=#<RKelly::Nodes::ArgumentsNode:0x007fd3eea03740 @value=[#<RKelly::Nodes::ResolveNode:0x007fd3eea03948 @value="s", @comments=[], @line=41, @filename=nil>], @comments=[], @line=41, @filename=nil>>, @else=#<RKelly::Nodes::ResolveNode:0x007fd3eea002c0 @value="s", @comments=[], @line=43, @filename=nil>>, @comments=[], @line=41, @filename=nil>], @comments=[], @line=nil, @filename=nil>, @comments=[], @line=nil, @filename=nil>, @arguments=[#<RKelly::Nodes::ParameterNode:0x007fd3ea5cf038 @value="s", @comments=[], @line=nil, @filename=nil>]>, @comments=[], @line=40, @filename=nil>, @comments=[], @line=40, @filename=nil, @name="manualUppercase", @constant=false>], @comments=[], @line=40, @filename=nil>, #<RKelly::Nodes::IfNode:0x007fd3eea047d0 @value=#<RKelly::Nodes::BlockNode:0x007fd3eea04c30 @value=#<RKelly::Nodes::SourceElementsNode:0x007fd3eea04d48 @value=[#<RKelly::Nodes::ExpressionStatementNode:0x007fd3eea05b30 @value=#<RKelly::Nodes::OpEqualNode:0x007fd3eea05c20 @value=#<RKelly::Nodes::ResolveNode:0x007fd3eea05d60 @value="manualLowercase", @comments=[], @line=51, @filename=nil>, @comments=[], @line=nil, @filename=nil, @left=#<RKelly::Nodes::ResolveNode:0x007fd3eea05fe0 @value="lowercase", @comments=[], @line=51, @filename=nil>>, @comments=[], @line=51, @filename=nil>, #<RKelly::Nodes::ExpressionStatementNode:0x007fd3eea05220 @value=#<RKelly::Nodes::OpEqualNode:0x007fd3eea05310 @value=#<RKelly::Nodes::ResolveNode:0x007fd3eea05450 @value="manualUppercase", @comments=[], @line=52, @filename=nil>, @comments=[], @line=nil, @filename=nil, @left=#<RKelly::Nodes::ResolveNode:0x007fd3eea056d0 @value="uppercase", @comments=[], @line=52, @filename=nil>>, @comments=[], @line=52, @filename=nil>], @comments=[], @line=nil, @filename=nil>, @comments=[], @line=50, @filename=nil>, @comments=[], @line=50, @filename=nil, @conditions=#<RKelly::Nodes::NotStrictEqualNode:0x007fd3eea06468 @value=#<RKelly::Nodes::FunctionCallNode:0x007fd3eea065a8 @value=#<RKelly::Nodes::DotAccessorNode:0x007fd3eea068a0 @value=#<RKelly::Nodes::StringNode:0x007fd3eea06a80 @value="'I'", @comments=[], @line=50, @filename=nil>, @comments=[], @line=50, @filename=nil, @Accessor="toLowerCase">, @comments=[], @line=nil, @filename=nil, @arguments=#<RKelly::Nodes::ArgumentsNode:0x007fd3eea06698 @value=[], @comments=[], @line=50, @filename=nil>>, @comments=[], @line=50, @filename=nil, @left=#<RKelly::Nodes::StringNode:0x007fd3eea06cd8 @value="'i'", @comments=[], @line=50, @filename=nil>>, @else=nil>], RAW_IDENT: var, RAW_IDENT: msie, SINGLE_CHAR: =]

[michaelficarra]

Here's the problematic variable declaration:

var /** holds major version number for IE or NaN for real browsers */
    msie              = int((/msie (\d+)/.exec(lowercase(navigator.userAgent)) || [])[1]),
    jqLite,           // delay binding since jQuery could be loaded after us.
    jQuery,           // delay binding
    slice             = [].slice,
    push              = [].push,
    toString          = Object.prototype.toString,

    /** @name angular */
    angular           = window.angular || (window.angular = {}),
    angularModule,
    nodeName_,
    uid               = ['0', '0', '0'];

int is probably causing trouble because it was reserved in ES3.

[nene]

Yep, int is reserved in ES3 and accordingly in RKelly, but we really should be looking at ES5, which actually reflects the reality of the implementations today. And ES5 drops a number of reserved keywords (along with int).

RKelly should be cleaned up of these no-longer-reserved words.