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graphvizAbstractTree in the C and Python runtimes

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kr.angelov
2013-08-15 08:06:37 +00:00
parent bce1dff728
commit 5337b4bef7
5 changed files with 129 additions and 82 deletions
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83
src/runtime/c/utils/pgf-service.c
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@@ -55,87 +55,6 @@ url_escape(char *str)
*pw++ = 0;
}
static int
generate_graphviz_expr(PgfExpr expr, int *pid,
GuWriter* wtr, GuExn* err, GuPool* pool)
{
int id = -1;
GuVariantInfo ei = gu_variant_open(expr);
switch (ei.tag) {
case PGF_EXPR_FUN: {
PgfExprFun* fun = ei.data;
id = (*pid)++;
gu_printf(wtr, err, "n%d[label = \"", id);
gu_string_write(fun->fun, wtr, err);
gu_puts("\", style = \"solid\", shape = \"plaintext\"]\n", wtr, err);
break;
}
case PGF_EXPR_APP: {
PgfExprApp* app = ei.data;
id = generate_graphviz_expr(app->fun, pid, wtr, err, pool);
int arg_id = generate_graphviz_expr(app->arg, pid, wtr, err, pool);
gu_printf(wtr, err, "n%d -- n%d [style = \"solid\"]\n", id, arg_id);
break;
}
case PGF_EXPR_ABS:
case PGF_EXPR_LIT: {
PgfExprLit* lit = ei.data;
id = (*pid)++;
gu_printf(wtr, err, "n%d[label = \"", id);
GuVariantInfo ei = gu_variant_open(lit->lit);
switch (ei.tag) {
case PGF_LITERAL_STR: {
PgfLiteralStr* lit = ei.data;
gu_puts("\\\"", wtr, err);
gu_string_write(lit->val, wtr, err);
gu_puts("\\\"", wtr, err);
break;
}
case PGF_LITERAL_INT: {
PgfLiteralInt* lit = ei.data;
gu_printf(wtr, err, "%d", lit->val);
break;
}
case PGF_LITERAL_FLT: {
PgfLiteralFlt* lit = ei.data;
gu_printf(wtr, err, "%lf", lit->val);
break;
}
default:
gu_impossible();
}
gu_puts("\", style = \"solid\", shape = \"plaintext\"]\n", wtr, err);
break;
}
case PGF_EXPR_META:
id = (*pid)++;
gu_printf(wtr, err, "n%d[label = \"?\", style = \"solid\", shape = \"plaintext\"]\n", id);
break;
case PGF_EXPR_VAR:
case PGF_EXPR_TYPED:
case PGF_EXPR_IMPL_ARG:
gu_impossible();
break;
default:
gu_impossible();
}
return id;
}
static void
generate_graphviz(PgfExpr expr, GuWriter* wtr, GuExn* err, GuPool* pool)
{
int id = 0;
gu_puts("graph {\n", wtr, err);
generate_graphviz_expr(expr, &id, wtr, err, pool);
gu_puts("}", wtr, err);
}
static int
render(PgfExpr expr, GuPool* pool)
{
@@ -175,7 +94,7 @@ render(PgfExpr expr, GuPool* pool)
GuWriter* wtr = gu_new_utf8_writer(out, pool);
GuExn* err = gu_new_exn(NULL, gu_kind(type), pool);
generate_graphviz(expr, wtr, err, pool);
pgf_graphviz_abstract_tree(expr, wtr, err);
fclose(fstream);
close(cp[1]);