146 lines
4.8 KiB
PHP
146 lines
4.8 KiB
PHP
<?php
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require_once('JavaScriptFunction.php');
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require_once('JavaScriptFunctionCall.php');
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require_once('JavaScriptAssignment.php');
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require_once('Destructable.php');
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class JavaScriptStatements extends Destructable {
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protected $statements;
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protected $function_calls;
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protected $function_assignments;
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protected $prefixes = array();
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public function __construct($statements) {
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if (!is_array($statements)) {
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$statements = array($statements);
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}
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$this->statements = $statements;
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}
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public function __destruct() {
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$this->mem_flush('statements', 'function_calls', 'function_assignments', 'prefixes');
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}
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public function function_calls($global_scope = FALSE, $name = NULL) {
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$calls = $this->function_calls = isset($this->function_calls) ? $this->function_calls : $this->resolve_something('resolve_function_calls');
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if ($name) {
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$names = array_slice(func_get_args(), 1);
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$filtered = array();
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foreach ($names as $name) {
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foreach ($calls as $call) {
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if ($call->name() == $name) {
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$filtered[] = $call;
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}
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}
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}
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$calls = $filtered;
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}
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if ($global_scope) {
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$filtered = array();
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foreach ($calls as $call) {
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if ($call->is_global()) {
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$filtered[] = $call;
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}
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}
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$calls = $filtered;
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}
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return $calls;
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}
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private function resolve_function_calls($statement, $parent) {
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if (is_object($statement) && $statement->id == '(' && $statement->arity == 'binary' && (is_object($statement->first) && $statement->first->is_lookup())) {
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$call = new JavaScriptFunctionCall($statement->first, $statement->second);
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if ($parent->id == '=') {
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$name = $parent->first;
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while ($name) {
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if ($name && $name->arity == 'name') {
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if ($name->global_scope) {
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$call->setAssignment($parent->first);
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}
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break;
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}
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$name = $name->first;
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}
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}
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return $call;
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}
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}
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public function assignments($global_scope=FALSE, $into_functions=TRUE) {
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$assignments = $this->function_assignments = isset($this->function_assignments) ? $this->function_assignments : $this->resolve_something('resolve_assignments', array(), !$into_functions);
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if ($global_scope) {
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$filtered = array();
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foreach ($assignments as $item) {
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if ($item->is_global()) {
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$filtered[] = $item;
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}
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}
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$assignments = $filtered;
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}
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return $assignments;
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}
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private function resolve_assignments($statement, $parent) {
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if ($statement->id == '=' && $statement->second) {
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return new JavaScriptAssignment($statement->first, $statement->second);
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}
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}
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public function prefix($prefix_name) {
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return isset($this->prefixes[$prefix_name]) ? $this->prefixes[$prefix_name] : $this->resolve_something('resolve_prefix', array($prefix_name));
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}
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private function resolve_prefix($statement, $parent, $prefix_name) {
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if ($statement->arity == 'statement' && $statement->value == $prefix_name) {
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return $statement;
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}
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}
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private function resolve_something($found_callback, $passed_args = array(), $seen_function=FALSE, $somethings = array(), $statements = NULL, $parent = NULL) {
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if (!$statements) {
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$statements = $this->statements;
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}
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if (!is_array($statements)) {
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$statements = array($statements);
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}
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foreach ($statements as $statement) {
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if (is_array($statement)) {
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foreach ($statement as $st) {
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if (!$seen_function || $st->id != 'function') {
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$somethings = $this->resolve_something($found_callback, $passed_args, $seen_function, $somethings, $st, NULL);
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}
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}
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continue;
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}
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if ($statement->id == 'function') {
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if ($seen_function) {
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continue;
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}
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$seen_function = TRUE;
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}
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if ($something = call_user_func_array(array($this, $found_callback), array_merge(array($statement, $parent), $passed_args))) {
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$somethings[] = $something;
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}
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if ($statement->first) {
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$somethings = $this->resolve_something($found_callback, $passed_args, $seen_function, $somethings, $statement->first, $statement);
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}
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if ($statement->second) {
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$somethings = $this->resolve_something($found_callback, $passed_args, $seen_function, $somethings, $statement->second, $statement);
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}
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if ($statement->third) {
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$somethings = $this->resolve_something($found_callback, $passed_args, $seen_function, $somethings, $statement->third, $statement);
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}
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if (!empty($statement->block)) {
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$somethings = $this->resolve_something($found_callback, $passed_args, $seen_function, $somethings, $statement->block, $statement);
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}
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}
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return $somethings;
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}
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} |