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graphprinter_visitor.c
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graphprinter_visitor.c
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#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include "graphprinter_visitor.h"
static void _print_arrow(struct AstNode *node);
static void _print_symbol_table(struct AstNode *node);
static void _print_symbols(Symbol *symbol);
Visitor *
graphprinter_new()
{
Visitor *visitor = (Visitor *) malloc (sizeof(Visitor));
visitor->visit_program = &graphprinter_visit_program;
visitor->visit_programdecl = &graphprinter_visit_programdecl;
visitor->visit_vardecl_list = &graphprinter_visit_vardecl_list;
visitor->visit_vardecl = &graphprinter_visit_simplenode;
visitor->visit_identifier_list = &graphprinter_visit_identifier_list;
visitor->visit_procfunc_list = &graphprinter_visit_procfunc_list;
visitor->visit_procedure = &graphprinter_visit_procfunc;
visitor->visit_function = &graphprinter_visit_procfunc;
visitor->visit_param_list = &graphprinter_visit_param_list;
visitor->visit_parameter = &graphprinter_visit_parameter;
visitor->visit_statement_list = &graphprinter_visit_statement_list;
visitor->visit_printint_stmt = &graphprinter_visit_simplenode;
visitor->visit_printchar_stmt = &graphprinter_visit_simplenode;
visitor->visit_printbool_stmt = &graphprinter_visit_simplenode;
visitor->visit_printline_stmt = &graphprinter_visit_simplenode;
visitor->visit_assignment_stmt = &graphprinter_visit_simplenode;
visitor->visit_if_stmt = &graphprinter_visit_simplenode;
visitor->visit_while_stmt = &graphprinter_visit_simplenode;
visitor->visit_for_stmt = &graphprinter_visit_simplenode;
visitor->visit_rel_expr = &graphprinter_visit_binary_expr;
visitor->visit_add_expr = &graphprinter_visit_binary_expr;
visitor->visit_mul_expr = &graphprinter_visit_binary_expr;
visitor->visit_notfactor = &graphprinter_visit_simplenode;
visitor->visit_call = &graphprinter_visit_call;
visitor->visit_callparam_list = &graphprinter_visit_callparam_list;
visitor->visit_callparam = &graphprinter_visit_callparam;
visitor->visit_identifier = &graphprinter_visit_identifier;
visitor->visit_literal = &graphprinter_visit_literal;
visitor->visit_add_op = NULL;
visitor->visit_mul_op = NULL;
visitor->visit_rel_op = NULL;
visitor->visit_not_op = NULL;
return visitor;
}
void
graphprinter_visit_program(struct _Visitor *visitor, struct AstNode *node)
{
printf("/* toypasc AST graph. */\n");
printf("digraph {\n");
printf("\tremincross=true;\n");
printf("\tordering=out;\n");
printf("\tcompound=true;\n");
printf("\tranksep=1.0;\n");
printf("\tnode [fontsize=11,fontname=Courier];\n");
printf("\tedge [color="COLOR_EDGE_GROUP"];\n\n");
printf("\tnode_%x [label=\"%s\",fontsize=16,fontname=Courier,",
node, node->name);
printf("style=filled,color=black,fillcolor="COLOR_FILL_GLOBAL"];\n");
_print_symbol_table(node);
ast_node_accept_children(node->children, visitor);
printf("}\n");
}
void
graphprinter_visit_simplenode (struct _Visitor *visitor, struct AstNode *node)
{
_print_arrow(node);
printf("\tnode_%x [label=\"%s\\n[line: %d]\",style=filled,",
node, node->name, node->linenum);
printf("fillcolor="COLOR_FILL_COMMON",color=%s];\n",
(node->type == ERROR) ? COLOR_EDGE_ERROR : COLOR_FILL_COMMON);
ast_node_accept_children(node->children, visitor);
}
void
graphprinter_visit_programdecl(struct _Visitor *visitor, struct AstNode *node)
{
_print_arrow(node);
printf("\tnode_%x [label=\"%s\\n[line: %d]\",style=filled,",
node, node->name, node->linenum);
printf("color="COLOR_EDGE_GROUP",fillcolor="COLOR_FILL_COMMON"];\n");
ast_node_accept(node->children, visitor);
printf("\tnode_%x -> symbol_%x [color=lightgray];\n", node->children, node->children->symbol);
}
void
graphprinter_visit_vardecl_list (struct _Visitor *visitor, struct AstNode *node)
{
_print_arrow(node);
printf("\tnode_%x [label=\"%s\",style=filled,", node, node->name);
printf("color="COLOR_EDGE_GROUP",fillcolor="COLOR_FILL_COMMON"];\n");
printf("\nsubgraph cluster_%x {\n\tstyle=dotted;\n", node);
ast_node_accept_children(node->children, visitor);
printf("}\n\n");
}
void
graphprinter_visit_identifier_list (struct _Visitor *visitor, struct AstNode *node)
{
_print_arrow(node);
printf("\tnode_%x [label=\"%s\",style=filled,", node, node->name);
printf("color="COLOR_EDGE_GROUP",fillcolor="COLOR_FILL_COMMON"];\n");
printf("\nsubgraph cluster_%x {\n\tstyle=dotted;\n", node);
ast_node_accept_children(node->children, visitor);
printf("}\n\n");
}
void
graphprinter_visit_procfunc_list (struct _Visitor *visitor, struct AstNode *node)
{
_print_arrow(node);
printf("\tnode_%x [label=\"%s\",style=filled,", node, node->name);
printf("color="COLOR_EDGE_GROUP",fillcolor="COLOR_FILL_COMMON"];\n");
ast_node_accept_children(node->children, visitor);
}
void
graphprinter_visit_procfunc (struct _Visitor *visitor, struct AstNode *node)
{
_print_arrow(node);
printf("\tnode_%x [label=\"%s\\n<%s>\\n[line: %d]\",style=filled,",
node, node->name, type_get_lexeme(node->type), node->linenum);
printf("color=blue,fillcolor="COLOR_EDGE_FUNCT"];\n");
printf("\nsubgraph cluster_%x {\n\tstyle=dotted;\n", node);
_print_symbol_table(node);
ast_node_accept_children(node->children, visitor);
printf("}\n\n");
}
void
graphprinter_visit_param_list (struct _Visitor *visitor, struct AstNode *node)
{
_print_arrow(node);
printf("\tnode_%x [label=\"%s\",style=filled,", node, node->name);
printf("color="COLOR_EDGE_GROUP",fillcolor="COLOR_FILL_COMMON"];\n");
printf("\nsubgraph cluster_%x {\n\tstyle=dotted;\n", node);
ast_node_accept_children(node->children, visitor);
printf("}\n\n");
}
void
graphprinter_visit_parameter (struct _Visitor *visitor, struct AstNode *node)
{
_print_arrow(node);
printf("\tnode_%x [label=\"%s\",style=filled,", node, node->name);
printf("fillcolor="COLOR_FILL_COMMON",color=%s];\n",
(node->type == ERROR) ? COLOR_EDGE_ERROR : COLOR_FILL_COMMON);
ast_node_accept_children(node->children, visitor);
}
void
graphprinter_visit_statement_list (struct _Visitor *visitor, struct AstNode *node)
{
_print_arrow(node);
printf("\tnode_%x [label=\"%s\",style=filled,", node, node->name);
printf("color="COLOR_EDGE_GROUP",fillcolor="COLOR_FILL_COMMON"];\n");
printf("\nsubgraph cluster_%x {\n\tstyle=dotted;\n", node);
ast_node_accept_children(node->children, visitor);
printf("}\n\n");
}
void
graphprinter_visit_binary_expr (struct _Visitor *visitor, struct AstNode *node)
{
_print_arrow(node);
printf("\tnode_%x [label=\"%s\\n'%s'\",style=filled,",
node, node->name, node->children->sibling->name);
printf("fillcolor="COLOR_FILL_COMMON",color=%s];\n",
(node->type == ERROR) ? COLOR_EDGE_ERROR : COLOR_FILL_COMMON);
ast_node_accept_children(node->children, visitor);
}
void
graphprinter_visit_call (struct _Visitor *visitor, struct AstNode *node)
{
struct AstNode *ident = node->children;
struct AstNode *plist = ident->sibling;
_print_arrow(node);
printf("\tnode_%x [label=\"%s\\n[line: %d]\",style=filled,",
node, node->name, node->linenum);
printf("fillcolor="COLOR_FILL_COMMON",color=%s];\n",
(node->type == ERROR) ? COLOR_EDGE_ERROR : COLOR_FILL_COMMON);
printf("\nsubgraph cluster_%x {\n\tstyle=dotted;\n", node);
ast_node_accept(ident, visitor);
ast_node_accept(plist, visitor);
printf("}\n\n");
}
void
graphprinter_visit_callparam_list (struct _Visitor *visitor, struct AstNode *node)
{
int i;
_print_arrow(node);
printf("\tnode_%x [label=\"%s\\n<", node, node->name);
for (i = 0; i < node->symbol->params; i++) {
printf("%s", type_get_lexeme(node->symbol->param_types[i]));
if (i + 1 < node->symbol->params)
printf(", ");
}
printf(">\",style=filled,fillcolor="COLOR_FILL_COMMON",color=%s];\n",
(node->type == ERROR) ? COLOR_EDGE_ERROR : COLOR_EDGE_GROUP);
ast_node_accept_children(node->children, visitor);
}
void
graphprinter_visit_callparam (struct _Visitor *visitor, struct AstNode *node)
{
_print_arrow(node);
printf("\tnode_%x [label=\"%s\\n<%s>\",style=filled,",
node, node->name, type_get_lexeme(node->type));
printf("fillcolor="COLOR_FILL_COMMON",color=%s];\n",
(node->type == ERROR) ? COLOR_EDGE_ERROR : COLOR_FILL_COMMON);
ast_node_accept_children(node->children, visitor);
}
void
graphprinter_visit_identifier (struct _Visitor *visitor, struct AstNode *node)
{
_print_arrow(node);
printf("\tnode_%x [label=\"", node);
if (node->symbol->decl_linenum == 0)
printf("UNDECLARED\\n");
printf("%s\\n'%s'\\n<%s>\",style=filled,color=",
node->name, node->symbol->name, type_get_lexeme(node->type));
if (node->symbol->decl_linenum == 0)
printf(COLOR_EDGE_ERROR);
else if (node->symbol->is_global)
printf(COLOR_FILL_GLOBAL);
else
printf(COLOR_FILL_LOCAL);
printf(",fillcolor=");
if (node->symbol->is_global)
printf(COLOR_FILL_GLOBAL);
else
printf(COLOR_FILL_LOCAL);
printf("];\n");
}
void
graphprinter_visit_literal (struct _Visitor *visitor, struct AstNode *node)
{
printf("\tnode_%x -> literal_%x;\n", node->parent, node);
printf("\tliteral_%x [label=\"", node);
value_print(stdout, &node->value, node->type);
printf("\\n<%s>\",style=filled,color="COLOR_FILL_LITERAL"];\n",
node->name, type_get_lexeme(node->type));
ast_node_accept_children(node->children, visitor);
}
// Helper functions ----------------------------------------------------------
static void
_print_arrow(struct AstNode *node)
{
printf("\tnode_%x -> node_%x [label=\"%d\",",
node->parent, node, ast_node_get_child_counter(node->parent));
printf("fontsize=11,fontname=Courier];\n");
}
static void
_print_symbol_table(struct AstNode *node)
{
if (node->symbol->next == NULL)
return;
printf("\tnode_%x -> symbol_%x [lhead=cluster_symtab_%x,color=",
node, node->symbol->next, node);
if (node->parent == NULL)
printf("black];\n");
else
printf("blue];\n");
printf("\n\tsubgraph cluster_symtab_%x {\n", node);
if (node->parent == NULL)
printf("\t\tcolor=black;\n");
else
printf("\t\tcolor=blue;\n");
printf("\t\tstyle=filled;\n\t\tfillcolor="COLOR_FILL_GLOBAL";\n\t\tfontname=Courier;\n");
printf("\t\tnode [style=filled,color=white,fillcolor="COLOR_FILL_SYMBOL"];\n");
_print_symbols(node->symbol->next);
printf("\t}\n\n");
}
static void
_print_symbols(Symbol *symbol)
{
if (symbol == NULL)
return;
if (symbol->name != NULL) {
printf("\t\tsymbol_%x [shape=record,label=\"{", symbol);
printf("Symbol|Address: 0x%x\\l|lexeme: %s\\l|", symbol, symbol->name);
printf("type: %s\\l}\"", type_get_lexeme(symbol->type));
printf(",style=filled,color=white,fillcolor="COLOR_FILL_SYMBOL"];\n");
if (symbol->next != NULL)
printf("\tsymbol_%x -> symbol_%x;\n", symbol, symbol->next);
}
_print_symbols(symbol->next);
}