[ruby/prism] Create an options struct for passing all of the possible options

https://github.com/ruby/prism/commit/99e81619de

1 files changed, 96 insertions, 0 deletions

diff --git a/prism/options.c b/prism/options.c
new file mode 100644
index 0000000000..7f45c2026c
--- /dev/null
+++ b/prism/options.c
@@ -0,0 +1,96 @@
+#include "prism/options.h"
+
+/**
+ * Set the filepath option on the given options struct.
+ */
+PRISM_EXPORTED_FUNCTION void
+pm_options_filepath_set(pm_options_t *options, const char *filepath) {
+    options->filepath = filepath;
+}
+
+/**
+ * Set the encoding option on the given options struct.
+ */
+PRISM_EXPORTED_FUNCTION void
+pm_options_encoding_set(pm_options_t *options, const char *encoding) {
+    options->encoding = encoding;
+}
+
+/**
+ * Set the line option on the given options struct.
+ */
+PRISM_EXPORTED_FUNCTION void
+pm_options_line_set(pm_options_t *options, uint32_t line) {
+    options->line = line;
+}
+
+/**
+ * Set the frozen string literal option on the given options struct.
+ */
+PRISM_EXPORTED_FUNCTION void
+pm_options_frozen_string_literal_set(pm_options_t *options, bool frozen_string_literal) {
+    options->frozen_string_literal = frozen_string_literal;
+}
+
+/**
+ * Set the suppress warnings option on the given options struct.
+ */
+PRISM_EXPORTED_FUNCTION void
+pm_options_suppress_warnings_set(pm_options_t *options, bool suppress_warnings) {
+    options->suppress_warnings = suppress_warnings;
+}
+
+/**
+ * Allocate and zero out the scopes array on the given options struct.
+ */
+PRISM_EXPORTED_FUNCTION void
+pm_options_scopes_init(pm_options_t *options, size_t scopes_count) {
+    options->scopes_count = scopes_count;
+    options->scopes = calloc(scopes_count, sizeof(pm_options_scope_t));
+    if (options->scopes == NULL) abort();
+}
+
+/**
+ * Return a pointer to the scope at the given index within the given options.
+ */
+PRISM_EXPORTED_FUNCTION const pm_options_scope_t *
+pm_options_scope_get(const pm_options_t *options, size_t index) {
+    return &options->scopes[index];
+}
+
+/**
+ * Create a new options scope struct. This will hold a set of locals that are in
+ * scope surrounding the code that is being parsed.
+ */
+PRISM_EXPORTED_FUNCTION void
+pm_options_scope_init(pm_options_scope_t *scope, size_t locals_count) {
+    scope->locals_count = locals_count;
+    scope->locals = calloc(locals_count, sizeof(pm_string_t));
+    if (scope->locals == NULL) abort();
+}
+
+/**
+ * Return a pointer to the local at the given index within the given scope.
+ */
+PRISM_EXPORTED_FUNCTION const pm_string_t *
+pm_options_scope_local_get(const pm_options_scope_t *scope, size_t index) {
+    return &scope->locals[index];
+}
+
+/**
+ * Free the internal memory associated with the options.
+ */
+PRISM_EXPORTED_FUNCTION void
+pm_options_free(pm_options_t *options) {
+    for (size_t scope_index = 0; scope_index < options->scopes_count; scope_index++) {
+        pm_options_scope_t *scope = &options->scopes[scope_index];
+
+        for (size_t local_index = 0; local_index < scope->locals_count; local_index++) {
+            pm_string_free(&scope->locals[local_index]);
+        }
+
+        free(scope->locals);
+    }
+
+    free(options->scopes);
+}