#include <assert.h>
#include <stdio.h>
#include <stdlib.h>
+#include <ctype.h>
#include "adt/error.h"
struct obstack ast_obstack;
-static
-void print_const(FILE *out, const const_t *cnst)
+static FILE *out;
+static int indent;
+static int print_implicit_casts = 1;
+
+static void print_statement(const statement_t *statement);
+
+void change_indent(int delta)
+{
+ indent += delta;
+ assert(indent >= 0);
+}
+
+void print_indent(void)
+{
+ for(int i = 0; i < indent; ++i)
+ fprintf(out, "\t");
+}
+
+static void print_const(const const_expression_t *cnst)
+{
+ if(cnst->expression.datatype == NULL)
+ return;
+
+ if(is_type_integer(cnst->expression.datatype)) {
+ fprintf(out, "%lld", cnst->v.int_value);
+ } else if(is_type_floating(cnst->expression.datatype)) {
+ fprintf(out, "%Lf", cnst->v.float_value);
+ }
+}
+
+static void print_quoted_string(const string_t *const string)
{
- fprintf(out, "%d", cnst->value);
+ fputc('"', out);
+ for (const char *c = string->begin, *const end = c + string->size; c != end; ++c) {
+ switch(*c) {
+ case '\"': fputs("\\\"", out); break;
+ case '\\': fputs("\\\\", out); break;
+ case '\a': fputs("\\a", out); break;
+ case '\b': fputs("\\b", out); break;
+ case '\f': fputs("\\f", out); break;
+ case '\n': fputs("\\n", out); break;
+ case '\r': fputs("\\r", out); break;
+ case '\t': fputs("\\t", out); break;
+ case '\v': fputs("\\v", out); break;
+ case '\?': fputs("\\?", out); break;
+ default:
+ if(!isprint(*c)) {
+ fprintf(out, "\\%03o", *c);
+ break;
+ }
+ fputc(*c, out);
+ break;
+ }
+ }
+ fputc('"', out);
}
-static
-void print_string_literal(FILE *out, const string_literal_t *string_literal)
+static void print_string_literal(
+ const string_literal_expression_t *string_literal)
{
- /* TODO escape " and non-printable chars */
- fprintf(out, "\"%s\"", string_literal->value);
+ print_quoted_string(&string_literal->value);
+}
+
+static void print_wide_string_literal(
+ const wide_string_literal_expression_t *const wstr)
+{
+ fputs("L\"", out);
+ for (const wchar_rep_t *c = wstr->value.begin,
+ *end = c + wstr->value.size;
+ c != end; ++c) {
+ switch (*c) {
+ case L'\"': fputs("\\\"", out); break;
+ case L'\\': fputs("\\\\", out); break;
+ case L'\a': fputs("\\a", out); break;
+ case L'\b': fputs("\\b", out); break;
+ case L'\f': fputs("\\f", out); break;
+ case L'\n': fputs("\\n", out); break;
+ case L'\r': fputs("\\r", out); break;
+ case L'\t': fputs("\\t", out); break;
+ case L'\v': fputs("\\v", out); break;
+ case L'\?': fputs("\\?", out); break;
+ default: {
+ const unsigned tc = *c;
+ if (tc < 0x80U) {
+ if (!isprint(*c)) {
+ fprintf(out, "\\%03o", (char)*c);
+ } else {
+ fputc(*c, out);
+ }
+ } else if (tc < 0x800) {
+ fputc(0xC0 | (tc >> 6), out);
+ fputc(0x80 | (tc & 0x3F), out);
+ } else if (tc < 0x10000) {
+ fputc(0xE0 | ( tc >> 12), out);
+ fputc(0x80 | ((tc >> 6) & 0x3F), out);
+ fputc(0x80 | ( tc & 0x3F), out);
+ } else {
+ fputc(0xF0 | ( tc >> 18), out);
+ fputc(0x80 | ((tc >> 12) & 0x3F), out);
+ fputc(0x80 | ((tc >> 6) & 0x3F), out);
+ fputc(0x80 | ( tc & 0x3F), out);
+ }
+ }
+ }
+ }
+ fputc('"', out);
}
-static
-void print_call_expression(FILE *out, const call_expression_t *call)
+static void print_call_expression(const call_expression_t *call)
{
- print_expression(out, call->method);
+ print_expression(call->function);
fprintf(out, "(");
call_argument_t *argument = call->arguments;
int first = 1;
} else {
first = 0;
}
- print_expression(out, argument->expression);
+ print_expression(argument->expression);
argument = argument->next;
}
fprintf(out, ")");
}
-static
-void print_binary_expression(FILE *out, const binary_expression_t *binexpr)
+static void print_binary_expression(const binary_expression_t *binexpr)
{
+ if(binexpr->expression.kind == EXPR_BINARY_BUILTIN_EXPECT) {
+ fputs("__builtin_expect(", out);
+ print_expression(binexpr->left);
+ fputs(", ", out);
+ print_expression(binexpr->right);
+ fputs(")", out);
+ return;
+ }
+
fprintf(out, "(");
- print_expression(out, binexpr->left);
+ print_expression(binexpr->left);
fprintf(out, " ");
- switch(binexpr->type) {
- case BINEXPR_INVALID:
- fprintf(out, "INVOP");
- break;
- case BINEXPR_ASSIGN:
- fprintf(out, "<-");
- break;
- case BINEXPR_ADD:
- fprintf(out, "+");
- break;
- case BINEXPR_SUB:
- fprintf(out, "-");
- break;
- case BINEXPR_NOTEQUAL:
- fprintf(out, "/=");
- break;
- case BINEXPR_EQUAL:
- fprintf(out, "=");
- break;
- case BINEXPR_LESS:
- fprintf(out, "<");
- break;
- case BINEXPR_LESSEQUAL:
- fprintf(out, "<=");
- break;
- case BINEXPR_GREATER:
- fprintf(out, ">");
+ switch(binexpr->expression.kind) {
+ case EXPR_BINARY_COMMA: fputs(",", out); break;
+ case EXPR_BINARY_ASSIGN: fputs("=", out); break;
+ case EXPR_BINARY_ADD: fputs("+", out); break;
+ case EXPR_BINARY_SUB: fputs("-", out); break;
+ case EXPR_BINARY_MUL: fputs("*", out); break;
+ case EXPR_BINARY_MOD: fputs("%", out); break;
+ case EXPR_BINARY_DIV: fputs("/", out); break;
+ case EXPR_BINARY_BITWISE_OR: fputs("|", out); break;
+ case EXPR_BINARY_BITWISE_AND: fputs("&", out); break;
+ case EXPR_BINARY_BITWISE_XOR: fputs("^", out); break;
+ case EXPR_BINARY_LOGICAL_OR: fputs("||", out); break;
+ case EXPR_BINARY_LOGICAL_AND: fputs("&&", out); break;
+ case EXPR_BINARY_NOTEQUAL: fputs("!=", out); break;
+ case EXPR_BINARY_EQUAL: fputs("==", out); break;
+ case EXPR_BINARY_LESS: fputs("<", out); break;
+ case EXPR_BINARY_LESSEQUAL: fputs("<=", out); break;
+ case EXPR_BINARY_GREATER: fputs(">", out); break;
+ case EXPR_BINARY_GREATEREQUAL: fputs(">=", out); break;
+ case EXPR_BINARY_SHIFTLEFT: fputs("<<", out); break;
+ case EXPR_BINARY_SHIFTRIGHT: fputs(">>", out); break;
+
+ case EXPR_BINARY_ADD_ASSIGN: fputs("+=", out); break;
+ case EXPR_BINARY_SUB_ASSIGN: fputs("-=", out); break;
+ case EXPR_BINARY_MUL_ASSIGN: fputs("*=", out); break;
+ case EXPR_BINARY_MOD_ASSIGN: fputs("%=", out); break;
+ case EXPR_BINARY_DIV_ASSIGN: fputs("/=", out); break;
+ case EXPR_BINARY_BITWISE_OR_ASSIGN: fputs("|=", out); break;
+ case EXPR_BINARY_BITWISE_AND_ASSIGN: fputs("&=", out); break;
+ case EXPR_BINARY_BITWISE_XOR_ASSIGN: fputs("^=", out); break;
+ case EXPR_BINARY_SHIFTLEFT_ASSIGN: fputs("<<=", out); break;
+ case EXPR_BINARY_SHIFTRIGHT_ASSIGN: fputs(">>=", out); break;
+ default: panic("invalid binexpression found");
+ }
+ fprintf(out, " ");
+ print_expression(binexpr->right);
+ fprintf(out, ")");
+}
+
+static void print_unary_expression(const unary_expression_t *unexpr)
+{
+ switch(unexpr->expression.kind) {
+ case EXPR_UNARY_NEGATE: fputs("-", out); break;
+ case EXPR_UNARY_PLUS: fputs("+", out); break;
+ case EXPR_UNARY_NOT: fputs("!", out); break;
+ case EXPR_UNARY_BITWISE_NEGATE: fputs("~", out); break;
+ case EXPR_UNARY_PREFIX_INCREMENT: fputs("++", out); break;
+ case EXPR_UNARY_PREFIX_DECREMENT: fputs("--", out); break;
+ case EXPR_UNARY_DEREFERENCE: fputs("*", out); break;
+ case EXPR_UNARY_TAKE_ADDRESS: fputs("&", out); break;
+
+ case EXPR_UNARY_BITFIELD_EXTRACT:
+ print_expression(unexpr->value);
+ return;
+
+ case EXPR_UNARY_POSTFIX_INCREMENT:
+ fputs("(", out);
+ print_expression(unexpr->value);
+ fputs(")", out);
+ fputs("++", out);
+ return;
+ case EXPR_UNARY_POSTFIX_DECREMENT:
+ fputs("(", out);
+ print_expression(unexpr->value);
+ fputs(")", out);
+ fputs("--", out);
+ return;
+ case EXPR_UNARY_CAST_IMPLICIT:
+ if(!print_implicit_casts) {
+ print_expression(unexpr->value);
+ return;
+ }
+ /* fallthrough */
+ case EXPR_UNARY_CAST:
+ fputs("(", out);
+ print_type(unexpr->expression.datatype);
+ fputs(")", out);
break;
- case BINEXPR_GREATEREQUAL:
- fprintf(out, ">=");
+ case EXPR_UNARY_ASSUME:
+ fputs("__assume", out);
break;
default:
- /* TODO: add missing ops */
- fprintf(out, "op%d", binexpr->type);
- break;
+ panic("invalid unary expression found");
+ }
+ fputs("(", out);
+ print_expression(unexpr->value);
+ fputs(")", out);
+}
+
+static void print_reference_expression(const reference_expression_t *ref)
+{
+ fprintf(out, "%s", ref->declaration->symbol->string);
+}
+
+static void print_array_expression(const array_access_expression_t *expression)
+{
+ if(!expression->flipped) {
+ fputs("(", out);
+ print_expression(expression->array_ref);
+ fputs(")[", out);
+ print_expression(expression->index);
+ fputs("]", out);
+ } else {
+ fputs("(", out);
+ print_expression(expression->index);
+ fputs(")[", out);
+ print_expression(expression->array_ref);
+ fputs("]", out);
+ }
+}
+
+static void print_sizeof_expression(const sizeof_expression_t *expression)
+{
+ fputs("sizeof", out);
+ if(expression->size_expression != NULL) {
+ fputc('(', out);
+ print_expression(expression->size_expression);
+ fputc(')', out);
+ } else {
+ fputc('(', out);
+ print_type(expression->type);
+ fputc(')', out);
}
- fprintf(out, " ");
- print_expression(out, binexpr->right);
- fprintf(out, ")");
}
-void print_expression(FILE *out, const expression_t *expression)
+static void print_alignof_expression(const alignof_expression_t *expression)
{
- switch(expression->type) {
+ fputs("__alignof__(", out);
+ print_type(expression->type);
+ fputc(')', out);
+}
+
+static void print_builtin_symbol(const builtin_symbol_expression_t *expression)
+{
+ fputs(expression->symbol->string, out);
+}
+
+static void print_builtin_constant(const builtin_constant_expression_t *expression)
+{
+ fputs("__builtin_constant_p(", out);
+ print_expression(expression->value);
+ fputc(')', out);
+}
+
+static void print_builtin_prefetch(const builtin_prefetch_expression_t *expression)
+{
+ fputs("__builtin_prefetch(", out);
+ print_expression(expression->adr);
+ if (expression->rw) {
+ fputc(',', out);
+ print_expression(expression->rw);
+ }
+ if (expression->locality) {
+ fputc(',', out);
+ print_expression(expression->locality);
+ }
+ fputc(')', out);
+}
+
+static void print_conditional(const conditional_expression_t *expression)
+{
+ fputs("(", out);
+ print_expression(expression->condition);
+ fputs(" ? ", out);
+ print_expression(expression->true_expression);
+ fputs(" : ", out);
+ print_expression(expression->false_expression);
+ fputs(")", out);
+}
+
+static void print_va_start(const va_start_expression_t *const expression)
+{
+ fputs("__builtin_va_start(", out);
+ print_expression(expression->ap);
+ fputs(", ", out);
+ fputs(expression->parameter->symbol->string, out);
+ fputs(")", out);
+}
+
+static void print_va_arg(const va_arg_expression_t *expression)
+{
+ fputs("__builtin_va_arg(", out);
+ print_expression(expression->ap);
+ fputs(", ", out);
+ print_type(expression->expression.datatype);
+ fputs(")", out);
+}
+
+static void print_select(const select_expression_t *expression)
+{
+ print_expression(expression->compound);
+ if(expression->compound->base.datatype == NULL ||
+ expression->compound->base.datatype->kind == TYPE_POINTER) {
+ fputs("->", out);
+ } else {
+ fputc('.', out);
+ }
+ fputs(expression->symbol->string, out);
+}
+
+static void print_classify_type_expression(
+ const classify_type_expression_t *const expr)
+{
+ fputs("__builtin_classify_type(", out);
+ print_expression(expr->type_expression);
+ fputc(')', out);
+}
+
+static void print_designator(const designator_t *designator)
+{
+ fputs(designator->symbol->string, out);
+ for (designator = designator->next; designator != NULL; designator = designator->next) {
+ if (designator->array_access) {
+ fputc('[', out);
+ print_expression(designator->array_access);
+ fputc(']', out);
+ } else {
+ fputc('.', out);
+ fputs(designator->symbol->string, out);
+ }
+ }
+}
+
+static void print_offsetof_expression(const offsetof_expression_t *expression)
+{
+ fputs("__builtin_offsetof", out);
+ fputc('(', out);
+ print_type(expression->type);
+ fputc(',', out);
+ print_designator(expression->designator);
+ fputc(')', out);
+}
+
+static void print_statement_expression(const statement_expression_t *expression)
+{
+ fputc('(', out);
+ print_statement(expression->statement);
+ fputc(')', out);
+}
+
+void print_expression(const expression_t *expression)
+{
+ switch(expression->kind) {
+ case EXPR_UNKNOWN:
case EXPR_INVALID:
fprintf(out, "*invalid expression*");
break;
case EXPR_CONST:
- print_const(out, (const const_t*) expression);
+ print_const(&expression->conste);
break;
+ case EXPR_FUNCTION:
+ case EXPR_PRETTY_FUNCTION:
case EXPR_STRING_LITERAL:
- print_string_literal(out, (const string_literal_t*) expression);
+ print_string_literal(&expression->string);
+ break;
+ case EXPR_WIDE_STRING_LITERAL:
+ print_wide_string_literal(&expression->wide_string);
break;
case EXPR_CALL:
- print_call_expression(out, (const call_expression_t*) expression);
+ print_call_expression(&expression->call);
break;
- case EXPR_BINARY:
- print_binary_expression(out, (const binary_expression_t*) expression);
+ EXPR_BINARY_CASES
+ print_binary_expression(&expression->binary);
break;
case EXPR_REFERENCE:
- case EXPR_UNARY:
- case EXPR_SELECT:
+ print_reference_expression(&expression->reference);
+ break;
case EXPR_ARRAY_ACCESS:
+ print_array_expression(&expression->array_access);
+ break;
+ EXPR_UNARY_CASES
+ print_unary_expression(&expression->unary);
+ break;
case EXPR_SIZEOF:
+ print_sizeof_expression(&expression->sizeofe);
+ break;
+ case EXPR_ALIGNOF:
+ print_alignof_expression(&expression->alignofe);
+ break;
+ case EXPR_BUILTIN_SYMBOL:
+ print_builtin_symbol(&expression->builtin_symbol);
+ break;
+ case EXPR_BUILTIN_CONSTANT_P:
+ print_builtin_constant(&expression->builtin_constant);
+ break;
+ case EXPR_BUILTIN_PREFETCH:
+ print_builtin_prefetch(&expression->builtin_prefetch);
+ break;
+ case EXPR_CONDITIONAL:
+ print_conditional(&expression->conditional);
+ break;
+ case EXPR_VA_START:
+ print_va_start(&expression->va_starte);
+ break;
+ case EXPR_VA_ARG:
+ print_va_arg(&expression->va_arge);
+ break;
+ case EXPR_SELECT:
+ print_select(&expression->select);
+ break;
+ case EXPR_CLASSIFY_TYPE:
+ print_classify_type_expression(&expression->classify_type);
+ break;
+ case EXPR_OFFSETOF:
+ print_offsetof_expression(&expression->offsetofe);
+ break;
+ case EXPR_STATEMENT:
+ print_statement_expression(&expression->statement);
+ break;
+
+ default:
/* TODO */
- fprintf(out, "some expression of type %d", expression->type);
+ fprintf(out, "some expression of type %d", (int) expression->kind);
break;
}
}
-static
-void print_block_statement(FILE *out, int indent,
- const block_statement_t *block)
+static void print_compound_statement(const compound_statement_t *block)
{
- statement_t *statement = block->first_statement;
+ fputs("{\n", out);
+ indent++;
+
+ statement_t *statement = block->statements;
while(statement != NULL) {
- print_statement(out, indent + 1, statement);
+ print_indent();
+ print_statement(statement);
- statement = statement->next;
+ statement = statement->base.next;
}
+ indent--;
+ print_indent();
+ fputs("}\n", out);
}
-static
-void print_return_statement(FILE *out, const return_statement_t *statement)
+static void print_return_statement(const return_statement_t *statement)
{
fprintf(out, "return ");
if(statement->return_value != NULL)
- print_expression(out, statement->return_value);
+ print_expression(statement->return_value);
+ fputs(";\n", out);
}
-static
-void print_expression_statement(FILE *out,
- const expression_statement_t *statement)
+static void print_expression_statement(const expression_statement_t *statement)
{
- print_expression(out, statement->expression);
+ print_expression(statement->expression);
+ fputs(";\n", out);
}
-static
-void print_goto_statement(FILE *out, const goto_statement_t *statement)
+static void print_goto_statement(const goto_statement_t *statement)
{
fprintf(out, "goto ");
- if(statement->label != NULL) {
- fprintf(out, "%s", statement->label->symbol->string);
- } else {
- fprintf(out, "?%s", statement->label_symbol->string);
- }
+ fputs(statement->label->symbol->string, out);
+ fprintf(stderr, "(%p)", (void*) statement->label);
+ fputs(";\n", out);
}
-static
-void print_label_statement(FILE *out, const label_statement_t *statement)
+static void print_label_statement(const label_statement_t *statement)
{
- fprintf(out, ":%s", statement->symbol->string);
+ fprintf(stderr, "(%p)", (void*) statement->label);
+ fprintf(out, "%s:\n", statement->label->symbol->string);
+ if(statement->label_statement != NULL) {
+ print_statement(statement->label_statement);
+ }
}
-static
-void print_if_statement(FILE *out, int indent, const if_statement_t *statement)
+static void print_if_statement(const if_statement_t *statement)
{
- fprintf(out, "if ");
- print_expression(out, statement->condition);
- fprintf(out, ":\n");
+ fputs("if(", out);
+ print_expression(statement->condition);
+ fputs(") ", out);
if(statement->true_statement != NULL) {
- print_statement(out, indent, statement->true_statement);
+ print_statement(statement->true_statement);
}
if(statement->false_statement != NULL) {
- fprintf(out, "else:\n");
- print_statement(out, indent, statement->false_statement);
+ print_indent();
+ fputs("else ", out);
+ print_statement(statement->false_statement);
+ }
+}
+
+static void print_switch_statement(const switch_statement_t *statement)
+{
+ fputs("switch(", out);
+ print_expression(statement->expression);
+ fputs(") ", out);
+ print_statement(statement->body);
+}
+
+static void print_case_label(const case_label_statement_t *statement)
+{
+ if(statement->expression == NULL) {
+ fputs("default:\n", out);
+ } else {
+ fputs("case ", out);
+ print_expression(statement->expression);
+ fputs(":\n", out);
}
+ print_statement(statement->label_statement);
}
-static
-void print_variable_declaration_statement(FILE *out,
- const variable_declaration_statement_t *statement)
+static void print_declaration_statement(
+ const declaration_statement_t *statement)
{
- fprintf(out, "var");
- if(statement->type != NULL) {
- fprintf(out, "<");
- print_type(out, statement->type);
- fprintf(out, ">");
+ int first = 1;
+ declaration_t *declaration = statement->declarations_begin;
+ for( ; declaration != statement->declarations_end->next;
+ declaration = declaration->next) {
+ if(!first) {
+ print_indent();
+ } else {
+ first = 0;
+ }
+ print_declaration(declaration);
+ fputc('\n', out);
}
- fprintf(out, " %s", statement->symbol->string);
}
-void print_statement(FILE *out, int indent, const statement_t *statement)
+static void print_while_statement(const while_statement_t *statement)
{
- for(int i = 0; i < indent; ++i)
- fprintf(out, "\t");
+ fputs("while(", out);
+ print_expression(statement->condition);
+ fputs(") ", out);
+ print_statement(statement->body);
+}
- switch(statement->type) {
- case STATEMENT_BLOCK:
- print_block_statement(out, indent,
- (const block_statement_t*) statement);
+static void print_do_while_statement(const do_while_statement_t *statement)
+{
+ fputs("do ", out);
+ print_statement(statement->body);
+ print_indent();
+ fputs("while(", out);
+ print_expression(statement->condition);
+ fputs(");\n", out);
+}
+
+static void print_for_statement(const for_statement_t *statement)
+{
+ fputs("for(", out);
+ if(statement->context.declarations != NULL) {
+ assert(statement->initialisation == NULL);
+ print_declaration(statement->context.declarations);
+ if(statement->context.declarations->next != NULL) {
+ panic("multiple declarations in for statement not supported yet");
+ }
+ fputc(' ', out);
+ } else {
+ if(statement->initialisation) {
+ print_expression(statement->initialisation);
+ }
+ fputs("; ", out);
+ }
+ if(statement->condition != NULL) {
+ print_expression(statement->condition);
+ }
+ fputs("; ", out);
+ if(statement->step != NULL) {
+ print_expression(statement->step);
+ }
+ fputs(")", out);
+ print_statement(statement->body);
+}
+
+static void print_asm_constraints(asm_constraint_t *constraints)
+{
+ asm_constraint_t *constraint = constraints;
+ for( ; constraint != NULL; constraint = constraint->next) {
+ if(constraint != constraints)
+ fputs(", ", out);
+
+ if(constraint->symbol) {
+ fprintf(out, "[%s] ", constraint->symbol->string);
+ }
+ print_quoted_string(&constraint->constraints);
+ fputs(" (", out);
+ print_expression(constraint->expression);
+ fputs(")", out);
+ }
+}
+
+static void print_asm_clobbers(asm_clobber_t *clobbers)
+{
+ asm_clobber_t *clobber = clobbers;
+ for( ; clobber != NULL; clobber = clobber->next) {
+ if(clobber != clobbers)
+ fputs(", ", out);
+
+ print_quoted_string(&clobber->clobber);
+ }
+}
+
+static void print_asm_statement(const asm_statement_t *statement)
+{
+ fputs("asm ", out);
+ if(statement->is_volatile) {
+ fputs("volatile ", out);
+ }
+ fputs("(", out);
+ print_quoted_string(&statement->asm_text);
+ if(statement->inputs == NULL && statement->outputs == NULL
+ && statement->clobbers == NULL)
+ goto end_of_print_asm_statement;
+
+ fputs(" : ", out);
+ print_asm_constraints(statement->inputs);
+ if(statement->outputs == NULL && statement->clobbers == NULL)
+ goto end_of_print_asm_statement;
+
+ fputs(" : ", out);
+ print_asm_constraints(statement->outputs);
+ if(statement->clobbers == NULL)
+ goto end_of_print_asm_statement;
+
+ fputs(" : ", out);
+ print_asm_clobbers(statement->clobbers);
+
+end_of_print_asm_statement:
+ fputs(");\n", out);
+}
+
+void print_statement(const statement_t *statement)
+{
+ switch(statement->kind) {
+ case STATEMENT_COMPOUND:
+ print_compound_statement(&statement->compound);
break;
case STATEMENT_RETURN:
- print_return_statement(out, (const return_statement_t*) statement);
+ print_return_statement(&statement->returns);
break;
case STATEMENT_EXPRESSION:
- print_expression_statement(out,
- (const expression_statement_t*) statement);
+ print_expression_statement(&statement->expression);
break;
case STATEMENT_LABEL:
- print_label_statement(out, (const label_statement_t*) statement);
+ print_label_statement(&statement->label);
break;
case STATEMENT_GOTO:
- print_goto_statement(out, (const goto_statement_t*) statement);
+ print_goto_statement(&statement->gotos);
+ break;
+ case STATEMENT_CONTINUE:
+ fputs("continue;\n", out);
+ break;
+ case STATEMENT_BREAK:
+ fputs("break;\n", out);
break;
case STATEMENT_IF:
- print_if_statement(out, indent, (const if_statement_t*) statement);
+ print_if_statement(&statement->ifs);
+ break;
+ case STATEMENT_SWITCH:
+ print_switch_statement(&statement->switchs);
+ break;
+ case STATEMENT_CASE_LABEL:
+ print_case_label(&statement->case_label);
+ break;
+ case STATEMENT_DECLARATION:
+ print_declaration_statement(&statement->declaration);
+ break;
+ case STATEMENT_WHILE:
+ print_while_statement(&statement->whiles);
+ break;
+ case STATEMENT_DO_WHILE:
+ print_do_while_statement(&statement->do_while);
break;
- case STATEMENT_VARIABLE_DECLARATION:
- print_variable_declaration_statement(out,
- (const variable_declaration_statement_t*) statement);
+ case STATEMENT_FOR:
+ print_for_statement(&statement->fors);
+ break;
+ case STATEMENT_ASM:
+ print_asm_statement(&statement->asms);
break;
case STATEMENT_INVALID:
- default:
fprintf(out, "*invalid statement*");
break;
-
}
- fprintf(out, "\n");
}
-static
-void print_method_parameters(FILE *out, const method_parameter_t *parameters,
- const method_type_t *method_type)
+static void print_storage_class(unsigned storage_class)
{
- fprintf(out, "(");
-
- int first = 1;
- const method_parameter_t *parameter = parameters;
- const method_parameter_type_t *parameter_type
- = method_type->parameter_types;
- while(parameter != NULL && parameter_type != NULL) {
- if(!first) {
- fprintf(out, ", ");
- } else {
- first = 0;
- }
-
- print_type(out, parameter_type->type);
- fprintf(out, " %s", parameter->symbol->string);
-
- parameter = parameter->next;
- parameter_type = parameter_type->next;
+ switch((storage_class_tag_t) storage_class) {
+ case STORAGE_CLASS_ENUM_ENTRY:
+ case STORAGE_CLASS_NONE:
+ break;
+ case STORAGE_CLASS_TYPEDEF: fputs("typedef ", out); break;
+ case STORAGE_CLASS_EXTERN: fputs("extern ", out); break;
+ case STORAGE_CLASS_STATIC: fputs("static ", out); break;
+ case STORAGE_CLASS_AUTO: fputs("auto ", out); break;
+ case STORAGE_CLASS_REGISTER: fputs("register ", out); break;
+ case STORAGE_CLASS_THREAD: fputs("__thread", out); break;
+ case STORAGE_CLASS_THREAD_EXTERN: fputs("extern __thread", out); break;
+ case STORAGE_CLASS_THREAD_STATIC: fputs("static __thread", out); break;
}
- assert(parameter == NULL && parameter_type == NULL);
-
- fprintf(out, ")");
}
-static
-void print_method(FILE *out, const method_t *method)
+void print_initializer(const initializer_t *initializer)
{
- method_type_t *type = method->type;
+ if(initializer->kind == INITIALIZER_VALUE) {
+ const initializer_value_t *value = &initializer->value;
+ print_expression(value->value);
+ return;
+ }
- fprintf(out, "func ");
- print_type(out, type->result_type);
- fprintf(out, " %s", method->symbol->string);
+ assert(initializer->kind == INITIALIZER_LIST);
+ fputs("{ ", out);
+ const initializer_list_t *list = &initializer->list;
- print_method_parameters(out, method->parameters, type);
+ for(size_t i = 0 ; i < list->len; ++i) {
+ if(i > 0) {
+ fputs(", ", out);
+ }
+ print_initializer(list->initializers[i]);
+ }
+ fputs("}", out);
+}
- if(method->statement != NULL) {
- fprintf(out, ":\n");
- print_statement(out, 0, method->statement);
- } else {
- fprintf(out, "\n");
+static void print_normal_declaration(const declaration_t *declaration)
+{
+ print_storage_class(declaration->storage_class);
+ if(declaration->is_inline) {
+ if (declaration->modifiers & DM_FORCEINLINE)
+ fputs("__forceinline ", out);
+ else
+ fputs("inline ", out);
+ }
+ print_type_ext(declaration->type, declaration->symbol,
+ &declaration->context);
+
+ if(declaration->type->kind == TYPE_FUNCTION) {
+ if(declaration->init.statement != NULL) {
+ fputs("\n", out);
+ print_statement(declaration->init.statement);
+ return;
+ }
+ } else if(declaration->init.initializer != NULL) {
+ fputs(" = ", out);
+ print_initializer(declaration->init.initializer);
}
+ fputc(';', out);
}
-static
-void print_namespace_entry(FILE *out, const namespace_entry_t *entry)
+void print_declaration(const declaration_t *declaration)
{
- switch(entry->type) {
- case NAMESPACE_ENTRY_METHOD:
- print_method(out, (const method_t*) entry);
+ if(declaration->namespc != NAMESPACE_NORMAL &&
+ declaration->symbol == NULL)
+ return;
+
+ switch(declaration->namespc) {
+ case NAMESPACE_NORMAL:
+ print_normal_declaration(declaration);
break;
- case NAMESPACE_ENTRY_VARIABLE:
- /* TODO */
- fprintf(out, "some namespace entry of type %d\n\n", entry->type);
+ case NAMESPACE_STRUCT:
+ fputs("struct ", out);
+ fputs(declaration->symbol->string, out);
+ fputc(' ', out);
+ print_compound_definition(declaration);
+ fputc(';', out);
break;
- case NAMESPACE_ENTRY_INVALID:
- default:
- fprintf(out, "invalid namespace entry (%d)\n", entry->type);
+ case NAMESPACE_UNION:
+ fputs("union ", out);
+ fputs(declaration->symbol->string, out);
+ fputc(' ', out);
+ print_compound_definition(declaration);
+ fputc(';', out);
+ break;
+ case NAMESPACE_ENUM:
+ fputs("enum ", out);
+ fputs(declaration->symbol->string, out);
+ fputc(' ', out);
+ print_enum_definition(declaration);
+ fputc(';', out);
break;
}
}
-void print_ast(FILE *out, const namespace_t *namespace)
+void print_ast(const translation_unit_t *unit)
{
- namespace_entry_t *entry = namespace->entries;
+ inc_type_visited();
+
+ declaration_t *declaration = unit->context.declarations;
+ for( ; declaration != NULL; declaration = declaration->next) {
+ if(declaration->storage_class == STORAGE_CLASS_ENUM_ENTRY)
+ continue;
+ if(declaration->namespc != NAMESPACE_NORMAL &&
+ declaration->symbol == NULL)
+ continue;
+
+ print_indent();
+ print_declaration(declaration);
+ fputc('\n', out);
+ }
+}
- while(entry != NULL) {
- print_namespace_entry(out, entry);
+bool is_constant_expression(const expression_t *expression)
+{
+ switch(expression->kind) {
- entry = entry->next;
+ case EXPR_CONST:
+ case EXPR_STRING_LITERAL:
+ case EXPR_WIDE_STRING_LITERAL:
+ case EXPR_SIZEOF:
+ case EXPR_CLASSIFY_TYPE:
+ case EXPR_FUNCTION:
+ case EXPR_PRETTY_FUNCTION:
+ case EXPR_OFFSETOF:
+ case EXPR_ALIGNOF:
+ case EXPR_BUILTIN_CONSTANT_P:
+ return true;
+
+ case EXPR_BUILTIN_SYMBOL:
+ case EXPR_BUILTIN_PREFETCH:
+ case EXPR_CALL:
+ case EXPR_SELECT:
+ case EXPR_VA_START:
+ case EXPR_VA_ARG:
+ case EXPR_STATEMENT:
+ case EXPR_UNARY_POSTFIX_INCREMENT:
+ case EXPR_UNARY_POSTFIX_DECREMENT:
+ case EXPR_UNARY_PREFIX_INCREMENT:
+ case EXPR_UNARY_PREFIX_DECREMENT:
+ case EXPR_UNARY_BITFIELD_EXTRACT:
+ case EXPR_UNARY_ASSUME: /* has VOID type */
+ case EXPR_BINARY_ASSIGN:
+ case EXPR_BINARY_MUL_ASSIGN:
+ case EXPR_BINARY_DIV_ASSIGN:
+ case EXPR_BINARY_MOD_ASSIGN:
+ case EXPR_BINARY_ADD_ASSIGN:
+ case EXPR_BINARY_SUB_ASSIGN:
+ case EXPR_BINARY_SHIFTLEFT_ASSIGN:
+ case EXPR_BINARY_SHIFTRIGHT_ASSIGN:
+ case EXPR_BINARY_BITWISE_AND_ASSIGN:
+ case EXPR_BINARY_BITWISE_XOR_ASSIGN:
+ case EXPR_BINARY_BITWISE_OR_ASSIGN:
+ case EXPR_BINARY_COMMA:
+ return false;
+
+ case EXPR_UNARY_NEGATE:
+ case EXPR_UNARY_PLUS:
+ case EXPR_UNARY_BITWISE_NEGATE:
+ case EXPR_UNARY_NOT:
+ case EXPR_UNARY_DEREFERENCE:
+ case EXPR_UNARY_TAKE_ADDRESS:
+ case EXPR_UNARY_CAST:
+ case EXPR_UNARY_CAST_IMPLICIT:
+ return is_constant_expression(expression->unary.value);
+
+ case EXPR_BINARY_ADD:
+ case EXPR_BINARY_SUB:
+ case EXPR_BINARY_MUL:
+ case EXPR_BINARY_DIV:
+ case EXPR_BINARY_MOD:
+ case EXPR_BINARY_EQUAL:
+ case EXPR_BINARY_NOTEQUAL:
+ case EXPR_BINARY_LESS:
+ case EXPR_BINARY_LESSEQUAL:
+ case EXPR_BINARY_GREATER:
+ case EXPR_BINARY_GREATEREQUAL:
+ case EXPR_BINARY_BITWISE_AND:
+ case EXPR_BINARY_BITWISE_OR:
+ case EXPR_BINARY_BITWISE_XOR:
+ case EXPR_BINARY_LOGICAL_AND:
+ case EXPR_BINARY_LOGICAL_OR:
+ case EXPR_BINARY_SHIFTLEFT:
+ case EXPR_BINARY_SHIFTRIGHT:
+ case EXPR_BINARY_BUILTIN_EXPECT:
+ case EXPR_BINARY_ISGREATER:
+ case EXPR_BINARY_ISGREATEREQUAL:
+ case EXPR_BINARY_ISLESS:
+ case EXPR_BINARY_ISLESSEQUAL:
+ case EXPR_BINARY_ISLESSGREATER:
+ case EXPR_BINARY_ISUNORDERED:
+ return is_constant_expression(expression->binary.left)
+ && is_constant_expression(expression->binary.right);
+
+ case EXPR_CONDITIONAL:
+ /* TODO: not correct, we only have to test expressions which are
+ * evaluated, which means either the true or false part might be not
+ * constant */
+ return is_constant_expression(expression->conditional.condition)
+ && is_constant_expression(expression->conditional.true_expression)
+ && is_constant_expression(expression->conditional.false_expression);
+
+ case EXPR_ARRAY_ACCESS:
+ return is_constant_expression(expression->array_access.array_ref)
+ && is_constant_expression(expression->array_access.index);
+
+ case EXPR_REFERENCE: {
+ declaration_t *declaration = expression->reference.declaration;
+ if(declaration->storage_class == STORAGE_CLASS_ENUM_ENTRY)
+ return true;
+
+ return false;
}
+
+ case EXPR_UNKNOWN:
+ case EXPR_INVALID:
+ break;
+ }
+ panic("invalid expression found (is constant expression)");
}
-void init_ast_module(void)
+
+void init_ast(void)
{
obstack_init(&ast_obstack);
}
-void exit_ast_module(void)
+void exit_ast(void)
{
obstack_free(&ast_obstack, NULL);
}
+void ast_set_output(FILE *stream)
+{
+ out = stream;
+ type_set_output(stream);
+}
+
void* (allocate_ast) (size_t size)
{
return _allocate_ast(size);
projects / cparser / blobdiff