jitters: print: add printer function

This commit is contained in:
Bruno BELANYI 2020-09-28 14:09:50 +02:00
parent a8f4122146
commit 6ffcbacdba
5 changed files with 87 additions and 0 deletions

8
src/ast/printer.h Normal file
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@ -0,0 +1,8 @@
#ifndef PRINTER_H
#define PRINTER_H
#include "ast/ast.h"
void printer_ast(const struct ast_node *ast);
#endif /* !PRINTER_H */

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@ -16,3 +16,4 @@ jitters_LDADD =
include %D%/ast/local.am include %D%/ast/local.am
include %D%/parse/local.am include %D%/parse/local.am
include %D%/print/local.am

4
src/print/local.am Normal file
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@ -0,0 +1,4 @@
jitters_SOURCES += \
%D%/printer.c \
%D%/printer.h \
$(NULL)

66
src/print/printer.c Normal file
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@ -0,0 +1,66 @@
#include "printer.h"
#include <stdio.h>
static void printer_binop(const struct binop_node *bin_op)
{
putchar('(');
printer_ast(bin_op->lhs);
switch (bin_op->op)
{
case PLUS:
printf(" + ");
break;
case MINUS:
printf(" - ");
break;
case TIMES:
printf(" * ");
break;
case DIVIDE:
printf(" / ");
break;
default:
break;
}
printer_ast(bin_op->rhs);
putchar(')');
}
static void printer_unop(const struct unop_node *un_op)
{
putchar('(');
switch (un_op->op)
{
case NEGATE:
printf("- ");
case IDENTITY:
default:
break;
}
printer_ast(un_op->rhs);
putchar(')');
}
static void printer_num(int num)
{
printf("%d", num);
}
void printer_ast(const struct ast_node *ast)
{
switch (ast->kind)
{
case BINOP:
printer_binop(&ast->val.bin_op);
break;
case UNOP:
printer_unop(&ast->val.un_op);
break;
case NUM:
printer_num(ast->val.num);
break;
default:
break;
}
}

8
src/print/printer.h Normal file
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@ -0,0 +1,8 @@
#ifndef PRINTER_H
#define PRINTER_H
#include "ast/ast.h"
void printer_ast(const struct ast_node *ast);
#endif /* !PRINTER_H */