Blame src/output/amgc_output_enum.c

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/**********************************************************/
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/*  apimagic: cparser-based API normalization utility     */
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/*  Copyright (C) 2015--2021  SysDeer Technologies, LLC   */
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/*  Released under GPLv2 and GPLv3; see COPYING.APIMAGIC. */
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/**********************************************************/
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#include <stdio.h>
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#include <cparser/ast/ast_t.h>
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#include <cparser/ast/entity_t.h>
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#include <cparser/ast/symbol_t.h>
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#include <apimagic/apimagic.h>
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#include "apimagic_driver_impl.h"
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static int output_enum(
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	const struct amgc_driver_ctx *	dctx,
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	const char *			symbol,
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	const struct amgc_entity *	enumvals,
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	const struct amgc_layout *	layout)
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{
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	const struct amgc_entity *	enumval;
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	struct amgc_layout		elayout;
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	size_t				len;
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	int				fdout;
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	fdout = amgc_driver_fdout(dctx);
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	if (!layout || !layout->symwidth) {
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		if (!layout)
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			memset(&elayout,0,sizeof(elayout));
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		else
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			memcpy(&elayout,layout,sizeof(elayout));
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		if (!elayout.tabwidth)
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			elayout.tabwidth = AMGC_TAB_WIDTH;
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		layout  = &elayout;
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		enumval = enumvals;
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		for (; enumval->entity || enumval->altname; enumval++) {
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			len = strlen(enumval->altname
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				? enumval->altname
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				: enumval->entity->base.symbol->string);
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			if (len > (unsigned)elayout.symwidth)
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				elayout.symwidth = len;
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		}
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	}
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	if (layout->header)
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		if (amgc_dprintf(fdout,layout->header) < 0)
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			return -1;
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	if (amgc_dprintf(fdout,"enum %s {\n",symbol) < 0)
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		return -1;
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	for (enumval=enumvals; enumval->entity || enumval->altname; enumval++) {
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		symbol = enumval->altname
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			? enumval->altname
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			: enumval->entity->base.symbol->string;
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		if (amgc_dprintf(fdout,"\t%s",symbol) < 0)
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			return -1;
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		if (amgc_output_pad_symbol(dctx,symbol,layout) < 0)
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			return -1;
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		if ((enumval->enumval < 0) && (enumval->enumval > -128))
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			amgc_dprintf(fdout,"= (%d)",enumval->enumval);
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		else if ((enumval->enumval >= 0) && (enumval->enumval < 2048))
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			amgc_dprintf(fdout,"= %d",enumval->enumval);
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		else
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			amgc_dprintf(fdout,"= 0x%08x",(unsigned)enumval->enumval);
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		if (amgc_dprintf(fdout,",\n") < 0)
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			return -1;
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	}
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	if (amgc_dprintf(fdout,"};\n") < 0)
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		return -1;
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	if (layout->footer)
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		if (amgc_dprintf(fdout,layout->footer) < 0)
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			return -1;
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	return 0;
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}
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int amgc_output_unit_enum(
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	const struct amgc_driver_ctx *	dctx,
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	const struct amgc_unit_ctx *	uctx,
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	const union entity_t *		entity,
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	const struct amgc_layout *	layout)
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{
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	int			ret;
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	const char *		symbol;
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	struct amgc_entity *	enumvals;
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	if (entity->base.kind != ENTITY_ENUM)
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		return -1;
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	else if (amgc_get_enum_members(uctx,entity,&enumvals))
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		return -1;
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	symbol = (entity->base.symbol)
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		? entity->base.symbol->string
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		: "";
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	ret = output_enum(dctx,symbol,enumvals,layout);
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	amgc_free_enum_members(enumvals);
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	return ret;
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}
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int amgc_output_custom_enum(
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	const struct amgc_driver_ctx *	dctx,
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	const struct amgc_entity *	penum,
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	const struct amgc_entity	enumvals[],
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	const struct amgc_layout *	layout)
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{
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	const struct amgc_entity *	aentity;
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	const char *			symbol;
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	if (penum->entity && penum->entity->base.kind != ENTITY_ENUM)
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		return -1;
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	else if (!penum->entity && !penum->altname)
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		return -1;
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	for (aentity=enumvals; aentity->entity || aentity->altname; aentity++)
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		if (aentity->entity && aentity->entity->base.kind != ENTITY_ENUM_VALUE)
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			return -1;
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	if (!penum->entity)
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		symbol = penum->altname;
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	else if (penum->entity->base.symbol)
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		symbol = penum->entity->base.symbol->string;
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	else
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		symbol = "";
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	return output_enum(dctx,symbol,enumvals,layout);
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}
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int  amgc_output_unit_enums(
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	const struct amgc_driver_ctx *	dctx,
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	const struct amgc_unit_ctx *	uctx,
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	const struct amgc_layout *	layout)
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{
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	const struct amgc_entity * aentity;
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	for (aentity=uctx->entities->enums; aentity->entity; aentity++)
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		if (amgc_output_unit_enum(dctx,uctx,aentity->entity,layout))
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			return -1;
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	return 0;
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}
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int  amgc_list_unit_enums(
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	const struct amgc_driver_ctx *	dctx,
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	const struct amgc_unit_ctx *	uctx,
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	const struct amgc_layout *	layout)
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{
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	const struct amgc_entity * aentity;
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	int fdout = amgc_driver_fdout(dctx);
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	if (layout && layout->header)
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		if (amgc_dprintf(fdout,layout->header,fdout) < 0)
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			return -1;
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	for (aentity=uctx->entities->enums; aentity->entity; aentity++)
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		if ((amgc_dprintf(fdout,"enum %s;\n",
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				aentity->entity && aentity->entity->base.symbol
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				? aentity->entity->base.symbol->string
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				: aentity->altname) < 0))
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			return -1;
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	if (layout && layout->footer)
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		if (amgc_dprintf(fdout,layout->footer) < 0)
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			return -1;
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	return 0;
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}