diff options
Diffstat (limited to 'gcc/go/gofrontend/expressions.h')
| -rw-r--r-- | gcc/go/gofrontend/expressions.h | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/gcc/go/gofrontend/expressions.h b/gcc/go/gofrontend/expressions.h index 09c71ad..6ba7fe1 100644 --- a/gcc/go/gofrontend/expressions.h +++ b/gcc/go/gofrontend/expressions.h @@ -581,6 +581,12 @@ class Expression string_constant_value(std::string* val) const { return this->do_string_constant_value(val); } + // If this is not a constant expression with boolean type, return + // false. If it is one, return true, and set VAL to the value. + bool + boolean_constant_value(bool* val) const + { return this->do_boolean_constant_value(val); } + // This is called if the value of this expression is being // discarded. This issues warnings about computed values being // unused. This returns true if all is well, false if it issued an @@ -1125,6 +1131,12 @@ class Expression do_string_constant_value(std::string*) const { return false; } + // Return whether this is a constant expression of boolean type, and + // set VAL to the value. + virtual bool + do_boolean_constant_value(bool*) const + { return false; } + // Called by the parser if the value is being discarded. virtual bool do_discarding_value(); @@ -1771,6 +1783,9 @@ class Type_conversion_expression : public Expression bool do_string_constant_value(std::string*) const; + bool + do_boolean_constant_value(bool*) const; + Type* do_type() { return this->type_; } @@ -1965,6 +1980,9 @@ class Unary_expression : public Expression bool do_numeric_constant_value(Numeric_constant*) const; + bool + do_boolean_constant_value(bool*) const; + Type* do_type(); @@ -2120,6 +2138,9 @@ class Binary_expression : public Expression do_numeric_constant_value(Numeric_constant*) const; bool + do_boolean_constant_value(bool*) const; + + bool do_discarding_value(); Type* |