1 files changed, 0 insertions, 190 deletions
diff --git a/prism/util/pm_string.h b/prism/util/pm_string.h
deleted file mode 100644
index f99f1abdf3..0000000000
--- a/prism/util/pm_string.h
+++ /dev/null
@@ -1,190 +0,0 @@
-/**
- * @file pm_string.h
- *
- * A generic string type that can have various ownership semantics.
- */
-#ifndef PRISM_STRING_H
-#define PRISM_STRING_H
-
-#include "prism/defines.h"
-
-#include <assert.h>
-#include <errno.h>
-#include <stdbool.h>
-#include <stddef.h>
-#include <stdlib.h>
-#include <string.h>
-
-// The following headers are necessary to read files using demand paging.
-#ifdef _WIN32
-#include <windows.h>
-#elif defined(_POSIX_MAPPED_FILES)
-#include <fcntl.h>
-#include <sys/mman.h>
-#include <sys/stat.h>
-#elif defined(PRISM_HAS_FILESYSTEM)
-#include <fcntl.h>
-#include <sys/stat.h>
-#endif
-
-/**
- * A generic string type that can have various ownership semantics.
- */
-typedef struct {
-    /** A pointer to the start of the string. */
-    const uint8_t *source;
-
-    /** The length of the string in bytes of memory. */
-    size_t length;
-
-    /** The type of the string. This field determines how the string should be freed. */
-    enum {
-        /** This string is a constant string, and should not be freed. */
-        PM_STRING_CONSTANT,
-
-        /** This is a slice of another string, and should not be freed. */
-        PM_STRING_SHARED,
-
-        /** This string owns its memory, and should be freed using `pm_string_free`. */
-        PM_STRING_OWNED,
-
-#ifdef PRISM_HAS_MMAP
-        /** This string is a memory-mapped file, and should be freed using `pm_string_free`. */
-        PM_STRING_MAPPED
-#endif
-    } type;
-} pm_string_t;
-
-/**
- * Returns the size of the pm_string_t struct. This is necessary to allocate the
- * correct amount of memory in the FFI backend.
- *
- * @return The size of the pm_string_t struct.
- */
-PRISM_EXPORTED_FUNCTION size_t pm_string_sizeof(void);
-
-/**
- * Defines an empty string. This is useful for initializing a string that will
- * be filled in later.
- */
-#define PM_STRING_EMPTY ((pm_string_t) { .type = PM_STRING_CONSTANT, .source = NULL, .length = 0 })
-
-/**
- * Initialize a shared string that is based on initial input.
- *
- * @param string The string to initialize.
- * @param start The start of the string.
- * @param end The end of the string.
- */
-void pm_string_shared_init(pm_string_t *string, const uint8_t *start, const uint8_t *end);
-
-/**
- * Initialize an owned string that is responsible for freeing allocated memory.
- *
- * @param string The string to initialize.
- * @param source The source of the string.
- * @param length The length of the string.
- */
-void pm_string_owned_init(pm_string_t *string, uint8_t *source, size_t length);
-
-/**
- * Initialize a constant string that doesn't own its memory source.
- *
- * @param string The string to initialize.
- * @param source The source of the string.
- * @param length The length of the string.
- */
-void pm_string_constant_init(pm_string_t *string, const char *source, size_t length);
-
-/**
- * Represents the result of calling pm_string_mapped_init or
- * pm_string_file_init. We need this additional information because there is
- * not a platform-agnostic way to indicate that the file that was attempted to
- * be opened was a directory.
- */
-typedef enum {
-    /** Indicates that the string was successfully initialized. */
-    PM_STRING_INIT_SUCCESS = 0,
-    /**
-     * Indicates a generic error from a string_*_init function, where the type
-     * of error should be read from `errno` or `GetLastError()`.
-     */
-    PM_STRING_INIT_ERROR_GENERIC = 1,
-    /**
-     * Indicates that the file that was attempted to be opened was a directory.
-     */
-    PM_STRING_INIT_ERROR_DIRECTORY = 2
-} pm_string_init_result_t;
-
-/**
- * Read the file indicated by the filepath parameter into source and load its
- * contents and size into the given `pm_string_t`. The given `pm_string_t`
- * should be freed using `pm_string_free` when it is no longer used.
- *
- * We want to use demand paging as much as possible in order to avoid having to
- * read the entire file into memory (which could be detrimental to performance
- * for large files). This means that if we're on windows we'll use
- * `MapViewOfFile`, on POSIX systems that have access to `mmap` we'll use
- * `mmap`, and on other POSIX systems we'll use `read`.
- *
- * @param string The string to initialize.
- * @param filepath The filepath to read.
- * @return The success of the read, indicated by the value of the enum.
- */
-PRISM_EXPORTED_FUNCTION pm_string_init_result_t pm_string_mapped_init(pm_string_t *string, const char *filepath);
-
-/**
- * Read the file indicated by the filepath parameter into source and load its
- * contents and size into the given `pm_string_t`. The given `pm_string_t`
- * should be freed using `pm_string_free` when it is no longer used.
- *
- * @param string The string to initialize.
- * @param filepath The filepath to read.
- * @return The success of the read, indicated by the value of the enum.
- */
-PRISM_EXPORTED_FUNCTION pm_string_init_result_t pm_string_file_init(pm_string_t *string, const char *filepath);
-
-/**
- * Ensure the string is owned. If it is not, then reinitialize it as owned and
- * copy over the previous source.
- *
- * @param string The string to ensure is owned.
- */
-void pm_string_ensure_owned(pm_string_t *string);
-
-/**
- * Compare the underlying lengths and bytes of two strings. Returns 0 if the
- * strings are equal, a negative number if the left string is less than the
- * right string, and a positive number if the left string is greater than the
- * right string.
- *
- * @param left The left string to compare.
- * @param right The right string to compare.
- * @return The comparison result.
- */
-int pm_string_compare(const pm_string_t *left, const pm_string_t *right);
-
-/**
- * Returns the length associated with the string.
- *
- * @param string The string to get the length of.
- * @return The length of the string.
- */
-PRISM_EXPORTED_FUNCTION size_t pm_string_length(const pm_string_t *string);
-
-/**
- * Returns the start pointer associated with the string.
- *
- * @param string The string to get the start pointer of.
- * @return The start pointer of the string.
- */
-PRISM_EXPORTED_FUNCTION const uint8_t * pm_string_source(const pm_string_t *string);
-
-/**
- * Free the associated memory of the given string.
- *
- * @param string The string to free.
- */
-PRISM_EXPORTED_FUNCTION void pm_string_free(pm_string_t *string);
-
-#endif