return tok
}

func (p *Parser) back() {
	if p.inputPos == 0 {
		p.errorf("internal error: backing up before BOL")
	} else {
		p.inputPos--
	}
}

func (p *Parser) peek() lex.ScanToken {
	if p.more() {
		return p.input[p.inputPos].ScanToken
	}
	return scanner.EOF
}

func (p *Parser) more() bool {
	return p.inputPos < len(p.input)
}

// license that can be found in the LICENSE file.

// Parse input AST and prepare Prog structure.

package main

import (
	"fmt"
	"go/ast"
	"go/format"
	"go/parser"
	"go/scanner"
	"go/token"
	"os"
	"strings"
)

func parse(name string, src []byte, flags parser.Mode) *ast.File {
	ast1, err := parser.ParseFile(fset, name, src, flags)
	if err != nil {

	fn.Pragma |= ir.Nosplit

	// Generate call. Use tail call if no params and no returns,
	// but a regular call otherwise.
	//
	// Note: ideally we would be using a tail call in cases where
	// there are params but no returns for ABI0->ABIInternal wrappers,
	// provided that all params fit into registers (e.g. we don't have
	// to allocate any stack space). Doing this will require some

	// we are sure we don't change the errors that go/parser returns.
	if r.err == errSyntax {
		r.err = nil
		for r.err == nil && !r.eof {
			r.readByte()
		}
		info.header = r.buf
	}
	if r.err != nil {
		return r.err
	}

	if info.fset == nil {
		return nil
	}

	// Parse file header & record imports.

pkg go/doc/comment, type Paragraph struct, Text []Text #51082
pkg go/doc/comment, type Parser struct #51082
pkg go/doc/comment, type Parser struct, LookupPackage func(string) (string, bool) #51082
pkg go/doc/comment, type Parser struct, LookupSym func(string, string) bool #51082
pkg go/doc/comment, type Parser struct, Words map[string]string #51082
pkg go/doc/comment, type Plain string #51082

	parser.allowABI = true
	testOperandParser(t, parser, amd64RuntimeOperandTests)
	testBadOperandParser(t, parser, amd64BadOperandRuntimeTests)
}

func Test386OperandParser(t *testing.T) {
	parser := newParser("386")
	testOperandParser(t, parser, x86OperandTests)
}

func TestARMOperandParser(t *testing.T) {
	parser := newParser("arm")
	testOperandParser(t, parser, armOperandTests)

}

func formatParams(b *bytes.Buffer, params []*Field, mode fmtMode, visited map[*Type]int) {
	b.WriteByte('(')
	fieldVerb := 'v'
	switch mode {
	case fmtTypeID, fmtTypeIDName, fmtGo:
		// no argument names on function signature, and no "noescape"/"nosplit" tags
		fieldVerb = 'S'
	}
	for i, param := range params {
		if i != 0 {
			b.WriteString(", ")
		}
		fldconv(b, param, fieldVerb, mode, visited, true)
	}

var fdSem = make(chan bool, 200)

var (
	rewrite    func(*token.FileSet, *ast.File) *ast.File
	parserMode parser.Mode
)

func usage() {
	fmt.Fprintf(os.Stderr, "usage: gofmt [flags] [path ...]\n")
	flag.PrintDefaults()
}

func initParserMode() {
	parserMode = parser.ParseComments
	if *allErrors {
		parserMode |= parser.AllErrors
	}
	// It's only -r that makes use of go/ast's object resolution,

	// directive.
	Module string
	// Name holds the WASM imported function name specified by the
	// //go:wasmimport directive.
	Name string
	// Params holds the imported function parameter fields.
	Params []WasmField
	// Results holds the imported function result fields.
	Results []WasmField
}

func (wi *WasmImport) CreateSym(ctxt *Link) *LSym {
	var sym LSym

	var b [8]byte

		t.Errorf("testcase %q: Results mismatch for %q: got:\n%swant:\n%s",
			tc, dfn, rgot, rwant)
	}
	// Compare receiver + params.
	pgot := propBitsToString[ParamPropBits](dfp.ParamFlags)
	pwant := propBitsToString[ParamPropBits](efp.ParamFlags)
	if pgot != pwant {
		t.Errorf("testcase %q: Params mismatch for %q: got:\n%swant:\n%s",
			tc, dfn, pgot, pwant)
	}
	// Compare call sites.
	for k, ve := range ecsites {