php-parser/test/code/formatPreservation/listInsertion.test

Insertion into list nodes
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<?php
$foo;

$bar;
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$stmts[] = new Stmt\Expression(new Expr\Variable('baz'));
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<?php
$foo;

$bar;
$baz;
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<?php

function test() {
    $foo;

    $bar;
}
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$stmts[0]->stmts[] = new Stmt\Expression(new Expr\Variable('baz'));
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<?php

function test() {
    $foo;

    $bar;
    $baz;
}
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<?php

function test(Foo     $param1) {}
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$stmts[0]->params[] = new Node\Param(new Expr\Variable('param2'));
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<?php

function test(Foo     $param1, $param2) {}
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<?php

try {
    /* stuff */
} catch
(Foo $x) {}
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$stmts[0]->catches[0]->types[] = new Node\Name('Bar');
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<?php

try {
    /* stuff */
} catch
(Foo|Bar $x) {}
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<?php

function test(Foo     $param1) {}
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array_unshift($stmts[0]->params, new Node\Param(new Expr\Variable('param0')));
/* Insertion at the start not handled yet */
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<?php

function test($param0, Foo     $param1)
{
}
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<?php

if ($cond) {
} elseif ($cond2) {
}
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$stmts[0]->elseifs[] = new Stmt\ElseIf_(new Expr\Variable('cond3'), []);
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<?php

if ($cond) {
} elseif ($cond2) {
} elseif ($cond3) {
}
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<?php

try {
} catch (Foo $foo) {
}
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$stmts[0]->catches[] = new Stmt\Catch_([new Node\Name('Bar')], new Expr\Variable('bar'), []);
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<?php

try {
} catch (Foo $foo) {
} catch (Bar $bar) {
}