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Fix a few variable assignment semantics.

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This commit is contained in:
Natalie Weizenbaum 2016-10-19 19:18:52 -07:00
parent 87e03f17eb
commit 4e6a3d0ea9
1 changed files with 11 additions and 4 deletions
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15
lib/src/environment.dart
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@ -165,10 +165,17 @@ class Environment {
/// Otherwise, if the variable was already defined, it'll set it in the
/// previous scope. If it's undefined, it'll set it in the current scope.
void setVariable(String name, Value value, {bool global: false}) {
var index = global || _variables.length == 1
? 0
: _variableIndices.putIfAbsent(
name, () => _inSemiGlobalScope ? 0 : _variables.length - 1);
int index;
if (global || _variables.length == 1) {
index = 0;
} else {
index = _variableIndices.putIfAbsent(name, () => _variables.length - 1);
if (!_inSemiGlobalScope && index == 0) {
index = _variables.length - 1;
_variableIndices[name] = index;
}
}
_variables[index][name] = value;
}