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Diffstat (limited to 'src/sksl/ir/SkSLExpression.h')
| -rw-r--r-- | src/sksl/ir/SkSLExpression.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/src/sksl/ir/SkSLExpression.h b/src/sksl/ir/SkSLExpression.h index f87d810fc0..5db9ddf96f 100644 --- a/src/sksl/ir/SkSLExpression.h +++ b/src/sksl/ir/SkSLExpression.h @@ -53,6 +53,13 @@ struct Expression : public IRNode { } /** + * Returns true if evaluating the expression potentially has side effects. Expressions may never + * return false if they actually have side effects, but it is legal (though suboptimal) to + * return true if there are not actually any side effects. + */ + virtual bool hasSideEffects() const = 0; + + /** * Given a map of known constant variable values, substitute them in for references to those * variables occurring in this expression and its subexpressions. Similar simplifications, such * as folding a constant binary expression down to a single value, may also be performed. |