Turned a few member functions into const, esp. dumpAst(), dumpVlog().

diff --git a/frontends/ast/ast.cc b/frontends/ast/ast.cc
index 482acd364f821863a791e610c98f7b984d981a9c..be04d5536f431cc8f4ce7980bc1774d978b4042a 100644 (file)
--- a/frontends/ast/ast.cc
+++ b/frontends/ast/ast.cc
@@ -212,7 +212,7 @@ AstNode::AstNode(AstNodeType type, AstNode *child1, AstNode *child2, AstNode *ch
 }
 
 // create a (deep recursive) copy of a node
-AstNode *AstNode::clone()
+AstNode *AstNode::clone() const
 {
        AstNode *that = new AstNode;
        *that = *this;
@@ -224,7 +224,7 @@ AstNode *AstNode::clone()
 }
 
 // create a (deep recursive) copy of a node use 'other' as target root node
-void AstNode::cloneInto(AstNode *other)
+void AstNode::cloneInto(AstNode *other) const
 {
        AstNode *tmp = clone();
        other->delete_children();
@@ -254,7 +254,7 @@ AstNode::~AstNode()
 
 // create a nice text representation of the node
 // (traverse tree by recursion, use 'other' pointer for diffing two AST trees)
-void AstNode::dumpAst(FILE *f, std::string indent)
+void AstNode::dumpAst(FILE *f, std::string indent) const
 {
        if (f == NULL) {
                for (auto f : log_files)
@@ -333,7 +333,7 @@ static std::string id2vl(std::string txt)
 }
 
 // dump AST node as Verilog pseudo-code
-void AstNode::dumpVlog(FILE *f, std::string indent)
+void AstNode::dumpVlog(FILE *f, std::string indent) const
 {
        bool first = true;
        std::string txt;
@@ -755,7 +755,7 @@ AstNode *AstNode::mkconst_str(const std::string &str)
        return node;
 }
 
-bool AstNode::bits_only_01()
+bool AstNode::bits_only_01() const
 {
        for (auto bit : bits)
                if (bit != RTLIL::S0 && bit != RTLIL::S1)
@@ -806,7 +806,7 @@ RTLIL::Const AstNode::asParaConst()
        return val;
 }
 
-bool AstNode::asBool()
+bool AstNode::asBool() const
 {
        log_assert(type == AST_CONSTANT);
        for (auto &bit : bits)
@@ -815,7 +815,7 @@ bool AstNode::asBool()
        return false;
 }
 
-int AstNode::isConst()
+int AstNode::isConst() const
 {
        if (type == AST_CONSTANT)
                return 1;

diff --git a/frontends/ast/ast.h b/frontends/ast/ast.h
index bddda9667d1a1d9b0f8465e6d428e1a151192313..a5d5ee30afa7f864f2124f2f9bfc132ab0ea9d0c 100644 (file)
--- a/frontends/ast/ast.h
+++ b/frontends/ast/ast.h
@@ -190,8 +190,8 @@ namespace AST
 
                // creating and deleting nodes
                AstNode(AstNodeType type = AST_NONE, AstNode *child1 = NULL, AstNode *child2 = NULL, AstNode *child3 = NULL);
-               AstNode *clone();
-               void cloneInto(AstNode *other);
+               AstNode *clone() const;
+               void cloneInto(AstNode *other) const;
                void delete_children();
                ~AstNode();
 
@@ -234,8 +234,8 @@ namespace AST
                AstNode *eval_const_function(AstNode *fcall);
 
                // create a human-readable text representation of the AST (for debugging)
-               void dumpAst(FILE *f, std::string indent);
-               void dumpVlog(FILE *f, std::string indent);
+               void dumpAst(FILE *f, std::string indent) const;
+               void dumpVlog(FILE *f, std::string indent) const;
 
                // used by genRTLIL() for detecting expression width and sign
                void detectSignWidthWorker(int &width_hint, bool &sign_hint, bool *found_real = NULL);
@@ -264,11 +264,11 @@ namespace AST
                RTLIL::Const asAttrConst();
                RTLIL::Const asParaConst();
                uint64_t asInt(bool is_signed);
-               bool bits_only_01();
-               bool asBool();
+               bool bits_only_01() const;
+               bool asBool() const;
 
                // helper functions for real valued const eval
-               int isConst(); // return '1' for AST_CONSTANT and '2' for AST_REALVALUE
+               int isConst() const; // return '1' for AST_CONSTANT and '2' for AST_REALVALUE
                double asReal(bool is_signed);
                RTLIL::Const realAsConst(int width);
        };