• caitpotter88's avatar
    [es6] allow any LeftHandSideExpression in for-of loops · 096125de
    caitpotter88 authored
    Fix an earlier regression which forbid non-VariableProxy LHS from being
    used in for-of loops. Like for-in loops, the spec allows any LHS to be used,
    with the sole exception that ObjectLiterals and ArrayLiterals must be valid
    AssignmentPatterns.
    
    Also fixes a bug in TurboFan which resulted in incorrectly replacing a variable load with a constant value in some instances, due to the AstLoopAssignmentAnalyzer failing to record the assignment to ForOfStatement's value.
    
    BUG=v8:4418, v8:2720
    LOG=N
    R=wingo@igalia.com, littledan@chromium.org, adamk@chromium.org, bmeurer@chromium.org
    
    Review URL: https://codereview.chromium.org/1411873004
    
    Cr-Commit-Position: refs/heads/master@{#31816}
    096125de
preparser.cc 42.1 KB