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Add getAnOperand to OperatorExpr

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This commit is contained in:
Sauyon Lee
2020-01-08 15:45:42 -08:00
parent 6e4880bc53
commit c889cb3501
1 changed files with 18 additions and 6 deletions
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24
ql/src/semmle/go/Expr.qll
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@@ -318,7 +318,9 @@ class ParenExpr extends @parenexpr, Expr {
override Expr stripParens() { result = getExpression().stripParens() }
override predicate isPlatformIndependentConstant() { getExpression().isPlatformIndependentConstant() }
override predicate isPlatformIndependentConstant() {
getExpression().isPlatformIndependentConstant()
}
override string toString() { result = "(...)" }
}
@@ -393,7 +395,9 @@ class TypeAssertExpr extends @typeassertexpr, Expr {
override predicate mayHaveOwnSideEffects() { any() }
override predicate isPlatformIndependentConstant() { getExpression().isPlatformIndependentConstant() }
override predicate isPlatformIndependentConstant() {
getExpression().isPlatformIndependentConstant()
}
override string toString() { result = "type assertion" }
}
@@ -419,7 +423,9 @@ class ConversionExpr extends CallOrConversionExpr {
/** Gets the operand of the type conversion. */
Expr getOperand() { result = getChildExpr(1) }
override predicate isPlatformIndependentConstant() { getOperand().isPlatformIndependentConstant() }
override predicate isPlatformIndependentConstant() {
getOperand().isPlatformIndependentConstant()
}
override string toString() { result = "type conversion" }
}
@@ -638,6 +644,9 @@ class MapTypeExpr extends @maptypeexpr, Expr {
class OperatorExpr extends @operatorexpr, Expr {
/** Gets the operator of this expression. */
string getOperator() { none() }
/** Gets an operand of this expression. */
Expr getAnOperand() { none() }
}
/**
@@ -662,7 +671,11 @@ class UnaryExpr extends @unaryexpr, OperatorExpr {
/** Gets the operand of this unary expression. */
Expr getOperand() { result = getChildExpr(0) }
override predicate isPlatformIndependentConstant() { getOperand().isPlatformIndependentConstant() }
override Expr getAnOperand() { result = this.getOperand() }
override predicate isPlatformIndependentConstant() {
getOperand().isPlatformIndependentConstant()
}
override string toString() { result = getOperator() + "..." }
}
@@ -747,8 +760,7 @@ class BinaryExpr extends @binaryexpr, OperatorExpr {
/** Gets the right operand of this binary expression. */
Expr getRightOperand() { result = getChildExpr(1) }
/** Gets an operand of this binary expression. */
Expr getAnOperand() { result = getChildExpr([0 .. 1]) }
override Expr getAnOperand() { result = getChildExpr([0 .. 1]) }
/** Holds if `e` and `f` (in either order) are the two operands of this binary expression. */
predicate hasOperands(Expr e, Expr f) {