• littledan's avatar
    Test for var declarations in eval which conflict with let · d515e513
    littledan authored
    Previously, name conflicts between var and let declarations were only
    made into exceptions if they were visible at parse-time. This patch adds
    runtime checks so that sloppy-mode direct eval can't introduce conflicting
    var declarations. The change is implemented by traversing the scope chain
    when a direct eval introduces a var declaration to look for conflicting
    let declarations, up to the function boundary.
    
    BUG=v8:4454
    R=adamk
    LOG=Y
    
    Review URL: https://codereview.chromium.org/1382513003
    
    Cr-Commit-Position: refs/heads/master@{#31211}
    d515e513
contexts.cc 19.5 KB