1 files changed, 139 insertions, 0 deletions
diff --git a/plugins/grpc/protoc_plugins/protoc-gen-php-grpc/php/keywords.go b/plugins/grpc/protoc_plugins/protoc-gen-php-grpc/php/keywords.go
new file mode 100644
index 00000000..32579e33
--- /dev/null
+++ b/plugins/grpc/protoc_plugins/protoc-gen-php-grpc/php/keywords.go
@@ -0,0 +1,139 @@
+// MIT License
+//
+// Copyright (c) 2018 SpiralScout
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in all
+// copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+// SOFTWARE.
+
+package php
+
+import (
+	"bytes"
+	"strings"
+	"unicode"
+)
+
+// @see https://github.com/protocolbuffers/protobuf/blob/master/php/ext/google/protobuf/protobuf.c#L168
+var reservedKeywords = []string{
+	"abstract", "and", "array", "as", "break",
+	"callable", "case", "catch", "class", "clone",
+	"const", "continue", "declare", "default", "die",
+	"do", "echo", "else", "elseif", "empty",
+	"enddeclare", "endfor", "endforeach", "endif", "endswitch",
+	"endwhile", "eval", "exit", "extends", "final",
+	"for", "foreach", "function", "global", "goto",
+	"if", "implements", "include", "include_once", "instanceof",
+	"insteadof", "interface", "isset", "list", "namespace",
+	"new", "or", "print", "private", "protected",
+	"public", "require", "require_once", "return", "static",
+	"switch", "throw", "trait", "try", "unset",
+	"use", "var", "while", "xor", "int",
+	"float", "bool", "string", "true", "false",
+	"null", "void", "iterable",
+}
+
+// Check if given name/keyword is reserved by php.
+func isReserved(name string) bool {
+	name = strings.ToLower(name)
+	for _, k := range reservedKeywords {
+		if name == k {
+			return true
+		}
+	}
+
+	return false
+}
+
+// generate php namespace or path
+func namespace(pkg *string, sep string) string {
+	if pkg == nil {
+		return ""
+	}
+
+	result := bytes.NewBuffer(nil)
+	for _, p := range strings.Split(*pkg, ".") {
+		result.WriteString(identifier(p, ""))
+		result.WriteString(sep)
+	}
+
+	return strings.Trim(result.String(), sep)
+}
+
+// create php identifier for class or message
+func identifier(name string, suffix string) string {
+	name = Camelize(name)
+	if suffix != "" {
+		return name + Camelize(suffix)
+	}
+
+	return name
+}
+
+func resolveReserved(identifier string, pkg string) string {
+	if isReserved(strings.ToLower(identifier)) {
+		if pkg == ".google.protobuf" {
+			return "GPB" + identifier
+		}
+		return "PB" + identifier
+	}
+
+	return identifier
+}
+
+// Camelize "dino_party" -> "DinoParty"
+func Camelize(word string) string {
+	words := splitAtCaseChangeWithTitlecase(word)
+	return strings.Join(words, "")
+}
+
+func splitAtCaseChangeWithTitlecase(s string) []string {
+	words := make([]string, 0)
+	word := make([]rune, 0)
+	for _, c := range s {
+		spacer := isSpacerChar(c)
+		if len(word) > 0 {
+			if unicode.IsUpper(c) || spacer {
+				words = append(words, string(word))
+				word = make([]rune, 0)
+			}
+		}
+		if !spacer {
+			if len(word) > 0 {
+				word = append(word, unicode.ToLower(c))
+			} else {
+				word = append(word, unicode.ToUpper(c))
+			}
+		}
+	}
+	words = append(words, string(word))
+	return words
+}
+
+func isSpacerChar(c rune) bool {
+	switch {
+	case c == rune("_"[0]):
+		return true
+	case c == rune(" "[0]):
+		return true
+	case c == rune(":"[0]):
+		return true
+	case c == rune("-"[0]):
+		return true
+	}
+	return false
+}